AnatomyOrganismsChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesDisciplines and OccupationsTechnology, Industry, AgricultureInformation ScienceHealth CareGeographicals
PorosityHaversian SystemMaterials TestingCompressive StrengthTissue ScaffoldsMicroscopy, Electron, ScanningPolyestersTissue EngineeringBiocompatible MaterialsDental Casting InvestmentMicroradiographyBone SubstitutesPowdersSurface PropertiesX-Ray MicrotomographyPolyglycolic AcidImplants, ExperimentalBowhead WhaleCalcium PhosphatesFemurDurapatiteBone and BonesTabletsPolymersHardnessBone CementsCeramicsPolyurethanesParticle SizeSilicon DioxideStress, MechanicalBone RemodelingFraxinusNanocompositesTensile StrengthApatitesNanofibersBone RegenerationPhysicochemical ProcessesDiaphysesPermeabilityUrsidaeDrug CompoundingPolyvinyl AlcoholChitosanBiomechanical PhenomenaEquipment Failure AnalysisRadiusNanostructuresBiofoulingWaterSophoraTibiaHydrogelsElastic ModulusTitaniumChemistry, PharmaceuticalQuartzComputer-Aided DesignBone DensityCementationCarboxymethylcellulose SodiumOsteocytesGlycolsDecanoatesOsseointegrationMagnesium OxideFiltrationRhamnaceaeLactic AcidMicrospheresFreeze DryingPolyethylene TerephthalatesOsteogenesisBixaceaeWettabilityPolyglactin 910ExcipientsDental Casting TechniqueHydrogelTantalumVacuumElasticityTechnology, PharmaceuticalHibernationNumerical Analysis, Computer-AssistedPolymethyl MethacrylateAbsorbable ImplantsIliumCalcification, PhysiologicSiliconGlassWest VirginiaGuided Tissue RegenerationDelayed-Action PreparationsPovidoneGelatinTablets, Enteric-Coated
Porosity
Condition of having pores or open spaces. This often refers to bones, bone implants, or bone cements, but can refer to the porous state of any solid substance.
Haversian System
A circular structural unit of bone tissue. It consists of a central hole, the Haversian canal through which blood vessels run, surrounded by concentric rings, called lamellae.
Materials Testing
The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.
Compressive Strength
The maximum compression a material can withstand without failure. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed, p427)
Tissue Scaffolds
Cell growth support structures composed of BIOCOMPATIBLE MATERIALS. They are specially designed solid support matrices for cell attachment in TISSUE ENGINEERING and GUIDED TISSUE REGENERATION uses.
Microscopy, Electron, Scanning
Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.
Polyesters
Polymers of organic acids and alcohols, with ester linkages--usually polyethylene terephthalate; can be cured into hard plastic, films or tapes, or fibers which can be woven into fabrics, meshes or velours.
Tissue Engineering
Generating tissue in vitro for clinical applications, such as replacing wounded tissues or impaired organs. The use of TISSUE SCAFFOLDING enables the generation of complex multi-layered tissues and tissue structures.
Biocompatible Materials
Synthetic or natural materials, other than DRUGS, that are used to replace or repair any body TISSUES or bodily function.
Dental Casting Investment
Material from which the casting mold is made in the fabrication of gold or cobalt-chromium castings. (Boucher's Clinical Dental Terminology, 4th ed, p168)
Microradiography
Production of a radiographic image of a small or very thin object on fine-grained photographic film under conditions which permit subsequent microscopic examination or enlargement of the radiograph at linear magnifications of up to several hundred and with a resolution approaching the resolving power of the photographic emulsion (about 1000 lines per millimeter).
Bone Substitutes
Synthetic or natural materials for the replacement of bones or bone tissue. They include hard tissue replacement polymers, natural coral, hydroxyapatite, beta-tricalcium phosphate, and various other biomaterials. The bone substitutes as inert materials can be incorporated into surrounding tissue or gradually replaced by original tissue.
Powders
Substances made up of an aggregation of small particles, as that obtained by grinding or trituration of a solid drug. In pharmacy it is a form in which substances are administered. (From Dorland, 28th ed)
Surface Properties
Characteristics or attributes of the outer boundaries of objects, including molecules.
X-Ray Microtomography
X-RAY COMPUTERIZED TOMOGRAPHY with resolution in the micrometer range.
Polyglycolic Acid
A biocompatible polymer used as a surgical suture material.
Implants, Experimental
Artificial substitutes for body parts and materials inserted into organisms during experimental studies.
Bowhead Whale
The species Balaena mysticetus, in the family Balaenidae, found in the colder waters of the Northern Hemisphere. The common name is derived from the extreme arching of the lower jaw.
Calcium Phosphates
Calcium salts of phosphoric acid. These compounds are frequently used as calcium supplements.
Femur
The longest and largest bone of the skeleton, it is situated between the hip and the knee.
Durapatite
The mineral component of bones and teeth; it has been used therapeutically as a prosthetic aid and in the prevention and treatment of osteoporosis.
Bone and Bones
A specialized CONNECTIVE TISSUE that is the main constituent of the SKELETON. The principle cellular component of bone is comprised of OSTEOBLASTS; OSTEOCYTES; and OSTEOCLASTS, while FIBRILLAR COLLAGENS and hydroxyapatite crystals form the BONE MATRIX.
Tablets
Solid dosage forms, of varying weight, size, and shape, which may be molded or compressed, and which contain a medicinal substance in pure or diluted form. (Dorland, 28th ed)
Polymers
Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS).
Hardness
The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure this property.
Bone Cements
Adhesives used to fix prosthetic devices to bones and to cement bone to bone in difficult fractures. Synthetic resins are commonly used as cements. A mixture of monocalcium phosphate, monohydrate, alpha-tricalcium phosphate, and calcium carbonate with a sodium phosphate solution is also a useful bone paste.
Ceramics
Products made by baking or firing nonmetallic minerals (clay and similar materials). In making dental restorations or parts of restorations the material is fused porcelain. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed & Boucher's Clinical Dental Terminology, 4th ed)
Polyurethanes
A group of thermoplastic or thermosetting polymers containing polyisocyanate. They are used as ELASTOMERS, as coatings, as fibers and as foams.
Particle Size
Relating to the size of solids.
Silicon Dioxide
Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, QUARTZ, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.
Stress, Mechanical
A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.
Bone Remodeling
The continuous turnover of BONE MATRIX and mineral that involves first an increase in BONE RESORPTION (osteoclastic activity) and later, reactive BONE FORMATION (osteoblastic activity). The process of bone remodeling takes place in the adult skeleton at discrete foci. The process ensures the mechanical integrity of the skeleton throughout life and plays an important role in calcium HOMEOSTASIS. An imbalance in the regulation of bone remodeling's two contrasting events, bone resorption and bone formation, results in many of the metabolic bone diseases, such as OSTEOPOROSIS.
Fraxinus
A plant genus of the family OLEACEAE. Members contain secoiridoid glucosides.
Nanocomposites
Nanometer-scale composite structures composed of organic molecules intimately incorporated with inorganic molecules. (Glossary of Biotechnology and Nanobiotechology Terms, 4th ed)
Tensile Strength
The maximum stress a material subjected to a stretching load can withstand without tearing. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed, p2001)
Apatites
A group of phosphate minerals that includes ten mineral species and has the general formula X5(YO4)3Z, where X is usually calcium or lead, Y is phosphorus or arsenic, and Z is chlorine, fluorine, or OH-. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Nanofibers
Submicron-sized fibers with diameters typically between 50 and 500 nanometers. The very small dimension of these fibers can generate a high surface area to volume ratio, which makes them potential candidates for various biomedical and other applications.
Bone Regeneration
Renewal or repair of lost bone tissue. It excludes BONY CALLUS formed after BONE FRACTURES but not yet replaced by hard bone.
Physicochemical Processes
Physical reactions involved in the formation of or changes in the structure of atoms and molecules and their interactions.
Diaphyses
The shaft of long bones.
Permeability
Property of membranes and other structures to permit passage of light, heat, gases, liquids, metabolites, and mineral ions.
Ursidae
The family of carnivorous or omnivorous bears, having massive bodies, coarse heavy fur, relatively short limbs, and almost rudimentary tails.
Drug Compounding
The preparation, mixing, and assembling of a drug. (From Remington, The Science and Practice of Pharmacy, 19th ed, p1814)
Polyvinyl Alcohol
A polymer prepared from polyvinyl acetates by replacement of the acetate groups with hydroxyl groups. It is used as a pharmaceutic aid and ophthalmic lubricant as well as in the manufacture of surface coatings artificial sponges, cosmetics, and other products.
Chitosan
Deacetylated CHITIN, a linear polysaccharide of deacetylated beta-1,4-D-glucosamine. It is used in HYDROGEL and to treat WOUNDS.
Biomechanical Phenomena
The properties, processes, and behavior of biological systems under the action of mechanical forces.
Equipment Failure Analysis
The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices.
Radius
The outer shorter of the two bones of the FOREARM, lying parallel to the ULNA and partially revolving around it.
Nanostructures
Materials which have structured components with at least one dimension in the range of 1 to 100 nanometers. These include NANOCOMPOSITES; NANOPARTICLES; NANOTUBES; and NANOWIRES.
Biofouling
Process by which unwanted microbial, plant or animal materials or organisms accumulate on man-made surfaces.
Water
A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Sophora
A plant genus of the family FABACEAE.
Tibia
The second longest bone of the skeleton. It is located on the medial side of the lower leg, articulating with the FIBULA laterally, the TALUS distally, and the FEMUR proximally.
Hydrogels
Water swollen, rigid, 3-dimensional network of cross-linked, hydrophilic macromolecules, 20-95% water. They are used in paints, printing inks, foodstuffs, pharmaceuticals, and cosmetics. (Grant & Hackh's Chemical Dictionary, 5th ed)
Elastic Modulus
Numerical expression indicating the measure of stiffness in a material. It is defined by the ratio of stress in a unit area of substance to the resulting deformation (strain). This allows the behavior of a material under load (such as bone) to be calculated.
Titanium
A dark-gray, metallic element of widespread distribution but occurring in small amounts; atomic number, 22; atomic weight, 47.90; symbol, Ti; specific gravity, 4.5; used for fixation of fractures. (Dorland, 28th ed)
Chemistry, Pharmaceutical
Chemistry dealing with the composition and preparation of agents having PHARMACOLOGIC ACTIONS or diagnostic use.
Quartz
Quartz (SiO2). A glassy or crystalline form of silicon dioxide. Many colored varieties are semiprecious stones. (From Grant & Hackh's Chemical Dictionary, 5th ed)
Computer-Aided Design
The use of computers for designing and/or manufacturing of anything, including drugs, surgical procedures, orthotics, and prosthetics.
Bone Density
The amount of mineral per square centimeter of BONE. This is the definition used in clinical practice. Actual bone density would be expressed in grams per milliliter. It is most frequently measured by X-RAY ABSORPTIOMETRY or TOMOGRAPHY, X RAY COMPUTED. Bone density is an important predictor for OSTEOPOROSIS.
Cementation
The joining of objects by means of a cement (e.g., in fracture fixation, such as in hip arthroplasty for joining of the acetabular component to the femoral component). In dentistry, it is used for the process of attaching parts of a tooth or restorative material to a natural tooth or for the attaching of orthodontic bands to teeth by means of an adhesive.
Carboxymethylcellulose Sodium
A cellulose derivative which is a beta-(1,4)-D-glucopyranose polymer. It is used as a bulk laxative and as an emulsifier and thickener in cosmetics and pharmaceuticals and as a stabilizer for reagents.
Osteocytes
Mature osteoblasts that have become embedded in the BONE MATRIX. They occupy a small cavity, called lacuna, in the matrix and are connected to adjacent osteocytes via protoplasmic projections called canaliculi.
Glycols
A generic grouping for dihydric alcohols with the hydroxy groups (-OH) located on different carbon atoms. They are viscous liquids with high boiling points for their molecular weights.
Decanoates
Salts and esters of the 10-carbon monocarboxylic acid-decanoic acid.
Osseointegration
The growth action of bone tissue as it assimilates surgically implanted devices or prostheses to be used as either replacement parts (e.g., hip) or as anchors (e.g., endosseous dental implants).
Magnesium Oxide
Magnesium oxide (MgO). An inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses.
Filtration
A process of separating particulate matter from a fluid, such as air or a liquid, by passing the fluid carrier through a medium that will not pass the particulates. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Rhamnaceae
The buckthorn plant family, of the order Rhamnales, includes some species with edible fruits and some that are medicinal.
Lactic Acid
A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed)
Microspheres
Small uniformly-sized spherical particles, of micrometer dimensions, frequently labeled with radioisotopes or various reagents acting as tags or markers.
Freeze Drying
Method of tissue preparation in which the tissue specimen is frozen and then dehydrated at low temperature in a high vacuum. This method is also used for dehydrating pharmaceutical and food products.
Polyethylene Terephthalates
Polyester polymers formed from terephthalic acid or its esters and ethylene glycol. They can be formed into tapes, films or pulled into fibers that are pressed into meshes or woven into fabrics.
Osteogenesis
The process of bone formation. Histogenesis of bone including ossification.
Bixaceae
A plant family of the order Violales, subclass Dilleniidae, class Magnoliopsida. Bixa contains bixin. Cochlospermum contains arjunolic acid and gum kondagogu (POLYSACCHARIDES).
Wettability
The quality or state of being wettable or the degree to which something can be wet. This is also the ability of any solid surface to be wetted when in contact with a liquid whose surface tension is reduced so that the liquid spreads over the surface of the solid.
Polyglactin 910
A polyester used for absorbable sutures & surgical mesh, especially in ophthalmic surgery. 2-Hydroxy-propanoic acid polymer with polymerized hydroxyacetic acid, which forms 3,6-dimethyl-1,4-dioxane-dione polymer with 1,4-dioxane-2,5-dione copolymer of molecular weight about 80,000 daltons.
Excipients
Usually inert substances added to a prescription in order to provide suitable consistency to the dosage form. These include binders, matrix, base or diluent in pills, tablets, creams, salves, etc.
Dental Casting Technique
The process of producing a form or impression made of metal or plaster using a mold.
Hydrogel
A network of cross-linked hydrophilic macromolecules used in biomedical applications.
Tantalum
Tantalum. A rare metallic element, atomic number 73, atomic weight 180.948, symbol Ta. It is a noncorrosive and malleable metal that has been used for plates or disks to replace cranial defects, for wire sutures, and for making prosthetic devices. (Dorland, 28th ed)
Vacuum
A space in which the pressure is far below atmospheric pressure so that the remaining gases do not affect processes being carried on in the space.
Elasticity
Resistance and recovery from distortion of shape.
Technology, Pharmaceutical
The application of scientific knowledge or technology to pharmacy and the pharmaceutical industry. It includes methods, techniques, and instrumentation in the manufacture, preparation, compounding, dispensing, packaging, and storing of drugs and other preparations used in diagnostic and determinative procedures, and in the treatment of patients.
Hibernation
The dormant state in which some warm-blooded animal species pass the winter. It is characterized by narcosis and by sharp reduction in body temperature and metabolic activity and by a depression of vital signs.
Numerical Analysis, Computer-Assisted
Computer-assisted study of methods for obtaining useful quantitative solutions to problems that have been expressed mathematically.
Polymethyl Methacrylate
Polymerized methyl methacrylate monomers which are used as sheets, moulding, extrusion powders, surface coating resins, emulsion polymers, fibers, inks, and films (From International Labor Organization, 1983). This material is also used in tooth implants, bone cements, and hard corneal contact lenses.
Absorbable Implants
Implants constructed of materials designed to be absorbed by the body without producing an immune response. They are usually composed of plastics and are frequently used in orthopedics and orthodontics.
Ilium
The largest of three bones that make up each half of the pelvic girdle.
Calcification, Physiologic
Process by which organic tissue becomes hardened by the physiologic deposit of calcium salts.
Silicon
A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086].
Glass
Hard, amorphous, brittle, inorganic, usually transparent, polymerous silicate of basic oxides, usually potassium or sodium. It is used in the form of hard sheets, vessels, tubing, fibers, ceramics, beads, etc.
West Virginia
Guided Tissue Regeneration
Procedures for enhancing and directing tissue repair and renewal processes, such as BONE REGENERATION; NERVE REGENERATION; etc. They involve surgically implanting growth conducive tracks or conduits (TISSUE SCAFFOLDING) at the damaged site to stimulate and control the location of cell repopulation. The tracks or conduits are made from synthetic and/or natural materials and may include support cells and induction factors for CELL GROWTH PROCESSES; or CELL MIGRATION.
Delayed-Action Preparations
Dosage forms of a drug that act over a period of time by controlled-release processes or technology.
Povidone
A polyvinyl polymer of variable molecular weight; used as suspending and dispersing agent and vehicle for pharmaceuticals; also used as blood volume expander.
Gelatin
A product formed from skin, white connective tissue, or bone COLLAGEN. It is used as a protein food adjuvant, plasma substitute, hemostatic, suspending agent in pharmaceutical preparations, and in the manufacturing of capsules and suppositories.
Tablets, Enteric-Coated
Tablets coated with material that delays release of the medication until after they leave the stomach. (Dorland, 28th ed)

Coating titanium implants with bioglass and with hydroxyapatite. A comparative study in sheep. (1/1668)

This study compares the osteointegration of titanium implants coated with bioglass (Biovetro GSB formula) and with hydroxyapatite (HAP). Twenty-four bioglass-coated and 24 HAP-coated cylinders were implanted in the femoral diaphyses of sheep, and examined after 2, 4, 6, 8, 12, and 16 weeks. The HAP coating gave a stronger and earlier fixation to the bone than did bioglass. Bioglass formed a tissue interface which showed a macrophage reaction with little new bone formation activity. In contrast, HPA, showed intense new bone formation, with highly mineralised osseous trabeculae in the neighbourhood of the interface.  (+info)

Enthacrynic and acid effects on inner wall pores in living monkeys. (2/1668)

PURPOSE: The influence of the inner wall of Schlemm's canal on aqueous outflow facility remains poorly understood. We examined the relationship between inner wall pore characteristics and outflow facility in living primate eyes in which facility had been pharmacologically increased by ethacrynic acid (ECA) infusion and in contralateral control eyes. METHODS: Outflow facility (two-level constant pressure perfusion) was measured in eight pairs of living monkey eyes before and after administration of a bolus dose of either 0.125 mM ECA or vehicle. After exsanguination, eyes were fixed in situ under constant-pressure conditions (mean fixation pressure approximately 19 mm Hg). The density and diameter of inner wall pores and the number and area of platelet aggregates on the inner wall of Schlemm's canal were measured by scanning electron microscopy. RESULTS: In ECA-treated eyes, outflow facility increased 63% (P < 0.0001), intracellular pore density decreased 46% (P = 0.0094), intracellular pore size increased 27% (P = 0.049), platelet aggregate density increased 158% (P < 0.0001), and area covered by platelets increased 210% (P = 0.012) relative to contralateral controls. Although the average density and size of intercellular pores were essentially unaffected by ECA, an increased density of large (> or = 1.90 microm) intercellular pores was seen in ECA-treated eyes. The density of intracellular pores increased with the duration of fixative perfusion. Other than a weak negative correlation between outflow facility and intracellular pore density in ECA-treated eyes (P = 0.052), facility was not correlated with inner wall pore features. CONCLUSIONS: Our data are most consistent with a scenario in which ECA promotes formation of large intercellular pores in the inner wall of Schlemm's canal, which are then masked by platelet aggregates. Masking of intercellular pores, combined with fixation-induced alteration of inner wall pore density, greatly complicates attempts to relate facility to inner wall structure and suggests that in vivo pore density is smaller than in fixed tissue. Additionally, facility-influencing effects of ECA on the juxtacanalicular tissue cannot be excluded.  (+info)

Effects of ethacrynic acid on Schlemm's canal inner wall and outflow facility in human eyes. (3/1668)

PURPOSE: The role of the inner wall of Schlemm's canal in determining aqueous outflow facility is poorly understood. To quantify the relationship between inner wall pore characteristics and aqueous outflow facility in human eyes, both control eyes and eyes in which facility had been pharmacologically increased by ethacrynic acid (ECA) infusion were studied. METHODS: Outflow facility was measured in enucleated human eyes before and after delivery of 0.25 mM ECA (one eye of each of 6 pairs) or 2.5 mM ECA (one eye of each of 13 pairs). ECA, and vehicle in contralateral eyes, was delivered into Schlemm's canal by retroperfusion, thereby largely avoiding drug exposure to the trabecular meshwork. After facility measurement, eyes were fixed under conditions of either constant pressure (physiological intraocular pressure, 13 pairs) or "equal flow" (6 pairs) and were microdissected to expose the inner wall of Schlemm's canal. The density and diameter of intercellular and intracellular inner wall pores were measured using scanning electron microscopy. RESULTS: Retroperfusion with 2.5 mM ECA increased facility by 73% (P < 0.001), whereas 0.25 mM ECA increased facility by 19% (not statistically significant). The density of intercellular pores in the inner wall of Schlemm's canal was increased by 520% in 2.5 mM ECA-retroperfused eyes (P < 0.00004), whereas intracellular pore density remained approximately constant. Large pores (size > or = 1.1 microm) were particularly enhanced in ECA retroperfused eyes. The net change in facility due to ECA was not correlated with changes in pore density or other inner wall pore statistics. CONCLUSIONS: Our data are most consistent with a model in which pores in the inner wall of Schlemm's canal indirectly influence facility. However, measured changes in facility due to changes in inner wall properties did not agree with quantitative predictions of the pore funneling theory, suggesting that changes in facility may instead be due to gel leakage from the extracellular spaces of the juxtacanalicular tissue. More definitive experiments are required to confirm this hypothesis.  (+info)

Diffusion of macromolecules in agarose gels: comparison of linear and globular configurations. (4/1668)

The diffusion coefficients (D) of different types of macromolecules (proteins, dextrans, polymer beads, and DNA) were measured by fluorescence recovery after photobleaching (FRAP) both in solution and in 2% agarose gels to compare transport properties of these macromolecules. Diffusion measurements were conducted with concentrations low enough to avoid macromolecular interactions. For gel measurements, diffusion data were fitted according to different theories: polymer chains and spherical macromolecules were analyzed separately. As chain length increases, diffusion coefficients of DNA show a clear shift from a Rouse-like behavior (DG congruent with N0-0.5) to a reptational behavior (DG congruent with N0-2.0). The pore size, a, of a 2% agarose gel cast in a 0.1 M PBS solution was estimated. Diffusion coefficients of the proteins and the polymer beads were analyzed with the Ogston model and the effective medium model permitting the estimation of an agarose gel fiber radius and hydraulic permeability of the gels. Not only did flexible macromolecules exhibit greater mobility in the gel than did comparable-size rigid spherical particles, they also proved to be a more useful probe of available space between fibers.  (+info)

Molecular mechanism for pore-formation in lipid membranes by the hemolytic lectin CEL-III from marine invertebrate Cucumaria echinata. (5/1668)

The pore-forming activity of CEL-III, a Gal/GalNAc specific lectin from the Holothuroidea Cucumaria echinata, was examined using artificial lipid membranes as a model system of erythrocyte membrane. The carboxyfluorescein (CF)-leakage studies clearly indicated that CEL-III induced the formation of pores in the dipalmitoyl phosphatidyl choline (DPPC)-lactosyl ceramide (LacCer) liposomes effectively but not in the DPPC-glucosyl ceramide (GlcCer) liposomes or DPPC liposomes. Such a leakage of CF was strongly inhibited by lactose, a potent inhibitor of CEL-III, suggesting that the leakage is mediated through the specific binding of CEL-III to the carbohydrate chains on the surface of the liposomes. The leakage of CF from the DPPC-lactosyl ceramide liposomes was pH-dependent, and it increased with increasing pH. The immunoblotting analysis and circular dichroism data indicated that upon interaction with liposomes, CEL-III associated to form an oligomer concomitantly with a marked conformational change. Furthermore, channel measurements showed that CEL-III has an ability to form small ion channels in the planar lipid bilayers consisting of diphytanoylphosphatidylcholine and human globoside (Gb4Cer)/LacCer.  (+info)

Heat stress and protective clothing: an emerging approach from the United States. (6/1668)

There is little doubt that heat stress affects many workers adversely and that protective clothing generally adds to the burden. The ACGIH threshold limit value for heat stress is the guiding document for evaluation of heat stress in the United States. Adjustment factors have been used to reflect the change in heat stress imposed by different clothing ensembles. While the first proposed factors started with limited experimental data and professional judgment, heat balance methods in the laboratory have yielded better estimates of adjustment factors and for a wider selection of ensembles. These same experiments have provided the starting point to accounting for nonporous clothing in heat balance evaluation schemes such as required sweat rate. Proposed changes to the ACGIH TLV have been mentioned and a framework for thinking about controls presented.  (+info)

Field testing of a personal size-selective bioaerosol sampler. (7/1668)

Existing samplers for the collection of bioaerosols have been designed with the aim of maintaining biological stability of the collected material, and in general do not select particles in accordance with international conventions for aerosol sampling. Many have uncharacterised sampling efficiencies and few are designed as personal samplers. If standard personal dust samplers are used for bioaerosols the viability of collected microorganisms may be compromised by dehydration. The objective of this study was to evaluate a novel personal bioaerosol sampler designed to collect the inhalable dust fraction and further subdivide the sample into thoracic and respirable fractions. The new sampler was tested to see whether it enhanced the survival of the collected microorganisms, and was assessed for ease of use in the field and in subsequent laboratory analyses. A number of occupation-related field sites were selected where large concentrations of bioaerosols were to be expected. The prototype sampler was found to be simple to use. Analysis could be carried out with similar efficiency either with all three fractions together for a total count, or separately for size selective data. The sampler performed at least as well as the standard IOM filter method but with the added advantage of size fractionation. The field trials showed that for sampling periods lasting several hours, microorganism survival within the sampler was adequate for culture and identification of the organisms present. This new sampler is now commercially available. In addition to bioaerosol sampling, the principle of size selective sampling using porous foams can be applied to other occupational hygiene problems, and also to indoor air monitoring of PM10 and PM2.5 concentrations.  (+info)

Molecular dynamics of synthetic leucine-serine ion channels in a phospholipid membrane. (8/1668)

Molecular dynamics calculations were carried out on models of two synthetic leucine-serine ion channels: a tetrameric bundle with sequence (LSLLLSL)(3)NH(2) and a hexameric bundle with sequence (LSSLLSL)(3)NH(2). Each protein bundle is inserted in a palmitoyloleoylphosphatidylcholine bilayer membrane and solvated by simple point charge water molecules inside the pore and at both mouths. Both systems appear to be stable in the absence of an electric field during the 4 ns of molecular dynamics simulation. The water motion in the narrow pore of the four-helix bundle is highly restricted and may provide suitable conditions for proton transfer via a water wire mechanism. In the wider hexameric pore, the water diffuses much more slowly than in bulk but is still mobile. This, along with the dimensions of the pore, supports the observation that this peptide is selective for monovalent cations. Reasonable agreement of predicted conductances with experimentally determined values lends support to the validity of the simulations.  (+info)

PhD scholarship in Porous Materials and Foams Employed in Hearing AidsPhD scholarship in Porous Materials and Foams Employed in Hearing Aids
The mechanical properties of the internal solid structure and the acoustic-mechanical interaction with a fluid determine the behaviour of porous materials when exposed to sound and vibration. Porous materials include foams, fibre materials and woven/unwoven fabrics, and have multiple applications in sound and vibration control. An elastic frame can provide them with mechanical stability when exposed to vibration. In this project you will acquire in-depth understanding of the vibroacoustic behaviour of porous materials used in hearing aids (HAs). You will explore alternative designs, materials, and fabrication techniques that can enhance their performance. You will benefit from the knowledge and tools available at CAMM to push the boundaries of this innovative research field. ...
https://www.elektro.dtu.dk/english/about-us/vacancies/job?id=78f26cb7-f876-4e73-8918-79ce1abb5c07
Gidi & Pearls - The Best Moisturizers To Protect Your High Porosity Hair For Winter
Last week, I put up a post about good moisturizers for low porosity hair. This time, I want to talk about high porosity hair (you didnt think I would leave this out did you?). If you dont know how to test the difference, read this post. Unlike low porosity hair, high porosity hair absorbs moisture really well. However, it also loses moisture easily. Because the hair cuticles are often open, its hard for high porous hair to retain moisture. High porous hair can be attributed to heat damage, poor hair maintenance, harsh hair dyes or just good ole genes. Its usually thin and can break easily if not properly maintained. High porosity hair needs heavier products and sealants to aid in retaining moisture. Products that contain butters and thicker oils like shea butter, mango butter, babassu oil, olive oil and avocado oil can help to retain moisture high porosity hair. Also, protein-rich products aid in strengthen the hair. Proteins temporarily fill the porous gaps leaving the hair stronger and ...
http://www.gidiandpearls.com/the-best-moisturizers-to-protect-your-high-porosity-hair-for-winter/
Patente US8114806 - Catalysts having selected pore size distributions, method of making such ... - Google PatentesPatente US8114806 - Catalysts having selected pore size distributions, method of making such ... - Google Patentes
A catalyst and a method of preparation of said catalyst is described herein. The catalyst includes one or more metals from Columns 6-10 of the Periodic Table and/or one or more compounds of one or more metals from Columns 6-10 of the Periodic Table, a pore size distribution with a median pore diameter ranging from 105 Å to 150 Å, with 60% of the total number of pores in the pore size distribution having a pore diameter within 60 Å of the median pore diameter, with at least 50% of its pore volume in pores having a pore diameter of at most 600 Å, and between 5% and 25% of its pore volume in pores having a pore diameter between 1000 Å and 5000 Å. Methods of producing said catalyst are described herein. Crude products and products made from said crude products are described herein.
http://www.google.es/patents/US8114806
Carbon porous beads TDX-02Carbon porous beads TDX-02
Carbon porous beads TDX-02,AL-C123681,80-100 mesh,,,, Buy Carbon porous beads TDX-02, purchase Carbon porous beads TDX-02, order Carbon porous beads TDX-02,Carbon porous beads TDX-02 msds,Carbon porous beads TDX-02 cost, Carbon porous beads TDX-02 501000,Carbon porous beads TDX-02 supplier, Carbon porous beads TDX-02 manufacturer, Carbon porous beads TDX-02 distributor
https://www.avention.co.kr/common/product/view.asp?s_code=AL-C123681&btype=&jtype=&stype=&page=1
Mongongo & Hemp Seed Oils High Porosity Moisture-Seal Masque | Black Beauty House
Dry, rough and unmanageable curls can turn the best of days into a bad hair day. Protect your hair with SheaMoistures High Porosity Moisture-Seal Masque formulated using ultra-hydrating Mongongo and Hemp Seed Oils to transform porous, over processed , damaged hair into soft, smooth, frizz-free curls and coils.High Porosity hair shaft cuticles are open causing the hair to lose moisture almost as soon as it is absorbed. Low moisture retention causes split ends, makes your curls rough, dry and prone to breakage. SheaMoistures High Porosity Moisture-Seal Masque is enriched with Mongongo and Hemp Seed Oils which seals in moisture by closing hair cuticles, forming a protective layer over your curls, leaving you hair bouncy, nourished and oh-so-amazing!SheaMoistures High Porosity Moisture-Seal Masque is fortified with natural ingredients like Baobab Proteins, Apple Cider Vinegar and certified organic Shea Butter which smooths down the cuticles of the hair shaft leaving you hair moisturized, smooth and
https://www.blackbeautyhouse.com/product-page/mongongo-hemp-seed-oils-high-porosity-moisture-seal-masque
Swelling of cellulosic porous materials - mathematical description and verification :: BioResourcesSwelling of cellulosic porous materials - mathematical description and verification :: BioResources
Swelling of Cellulosic Porous Materials - Mathematical Description and Verification. Anton Geffert,a,* Ondrej Vacek,b Andrej Jankech,b Jarmila Geffertová,a and Miloslav Milichovský c. The swelling of natural porous materials, including bleached pulp, as represented by mathematical descriptions, is influenced by a variety of different operating factors. The formerly used Generalised Hygroscopicity Model leads to either a disproportion between a model and a limit value of the sorption capacity or to noticeable deviation in the early swelling phase. Alternatively, the so-called Simple Bounded Growth model solely depends on the maximum sorption capacity, ignoring the physical properties that affect the fibre swelling rate. This research shows that the combination of the two models best describes the swelling process of bleached pulp - a rapid swelling phase and a slower swelling phase. The combined model was found to be useful in characterizing the well-known hornification process.. Contact ...
https://bioresources.cnr.ncsu.edu/resources/swelling-of-cellulosic-porous-materials-mathematical-description-and-verification/
The role of surface chemistry and porosity on the adsorption of inflammatory mediators<...The role of surface chemistry and porosity on the adsorption of inflammatory mediators<...
TY - GEN. T1 - The role of surface chemistry and porosity on the adsorption of inflammatory mediators. AU - Murphy, M. C.. AU - Phillips, G. J.. AU - Lloyd, A. W.. AU - Davies, J. G.. AU - Mikhalovsky, S. V.. PY - 2004/12/1. Y1 - 2004/12/1. N2 - The role of surface chemistry and porosity on the adsorption of inflammatory mediators was analyzed. It was found that the removal of lipopolysaccharide (LPS) and proinflammatory cytokines from the circulation was capable of providing a therapy to counteract sepsis. It was observed that all MAST carbons exhibited poor adsorption capability for LPS. The results show that porosity is helpful in the adsorption of LPS.. AB - The role of surface chemistry and porosity on the adsorption of inflammatory mediators was analyzed. It was found that the removal of lipopolysaccharide (LPS) and proinflammatory cytokines from the circulation was capable of providing a therapy to counteract sepsis. It was observed that all MAST carbons exhibited poor adsorption ...
https://research.nu.edu.kz/en/publications/the-role-of-surface-chemistry-and-porosity-on-the-adsorption-of-i
Hair Care Tips for High Porosity Hair - TheWetLab
Hair care tips for high porosity hair are very important. If your hair is low porosity, then its not going to have any problems with hair growth. However, if your hair is high porosity, then you need to take special measures to make sure that your hair grows properly. For example, if youre having trouble growing out your locks because theyre too coarse or thick and heavy, then there might be some things that can help you get rid of these issues.. The main thing is that you need to know what to do so that your hair doesnt become brittle or break off. Also, if you want to keep your hair healthy and strong, then you need to take proper care of it.. You dont want it breaking easily when doing physical activities like running around or working out.. There are various ways to deal with the problem of high porosity hair. Some of them include:. 1) Use a product containing proteins such as casein or soy protein.. These types of products will help your hair retain moisture better and prevent damage ...
https://wetlab.org/hair-care-tips-for-high-porosity-hair-2/
Modeling the Thermodynamics and Dynamics of Fluids Confined in Three-D by Anish Julius DesouzaModeling the Thermodynamics and Dynamics of Fluids Confined in Three-D by Anish Julius Desouza
Porous materials have application in adsorption based processes due to their high internal surface area and tailorable pore size. They find uses in fields such as catalysis, separation, biotechnology, and microelectronics. Fluids confined in such materials exhibit interesting behavior in regards to the condensation and evaporation mechanisms. Understanding study the behavior of fluids confined in these porous materials is necessary for the efficient design of these materials. The adsorption/desorption isotherm provides valuable information about the effect of network features like pore connectivity and pore size distribution on fluid behavior during pore condensation and evaporation. Such insight can be useful in the characterization of these porous materials. Three dimensionally ordered mesoporous (3DOm) carbon is a porous material that has recently emerged and is of interest. These porous structures are obtained from templating colloidal crystals formed from lysine-silica nanoparticles. The resulting
https://scholarworks.umass.edu/masters_theses_2/346/
Molecular simulation study on adsorption of methanol/water mixtures in mesoporous silicas modified pore surface silylation<...
TY - JOUR. T1 - Molecular simulation study on adsorption of methanol/water mixtures in mesoporous silicas modified pore surface silylation. AU - Aoyama, Naoki. AU - Yoshihara, Tsukasa. AU - Furukawa, Shin ichi. AU - Nitta, Tomoshige. AU - Takahashi, Hideaki. AU - Nakano, Masayoshi. N1 - Funding Information: The research was partly supported by a Grant-in-Aid for Young Scientists (B) (No. 17760600) from the Ministry of Education, Science, Sports and Culture, Japan.. PY - 2007/8/25. Y1 - 2007/8/25. N2 - Two types of molecular simulation techniques have been utilized to investigate adsorption of methanol/water mixtures in a mesoporous silica with a hydrophobic pore surface: the NVT-ensemble Molecular Dynamics method with the melt-quench algorithm for modeling a fully-silylated mesoporous silica and the μVT-ensemble Orientaional-Biased Monte Carlo method for calculating adsorption isotherms. Adsorption isotherms of methanol and water at 333 K are calculated for an equi-relative-pressure mixture ...
https://tohoku.pure.elsevier.com/en/publications/molecular-simulation-study-on-adsorption-of-methanolwater-mixture
Shea Moisture Mongongo &High Porosity Mois. Seal Shampoo13oz | The BraidBoxSwissShea Moisture Mongongo &High Porosity Mois. Seal Shampoo13oz | The BraidBoxSwiss
Treat rough, unmanageable, damaged or dry hair with High Porosity Moisture-Seal Shampoo from SheaMoisture. This sulfate-free highly moisturizing shampoo is specially formulated for deep thorough cleansing of scalp and rough, damaged curls and coils prone to frizz, dryness and breakage.Dry hair, dehydrated and low moisture hair, feels rough, is frizzy or dull with split-ends and is shedding. This ultra-moisture rich shampoo wont strip, tangle or dry out your hair. SheaMoistures High Porosity Moisture-Seal Shampoo is enriched with Mongongo and Hemp Seed Oils, which repairs damage and seals moisture into your hair cuticles making your curls or coils feel smooth and nourished.Natural ingredients like Baobab Proteins and Apple Cider Vinegar have been blended together with certified organic Shea Butter to create a rich formula which gently smooths porous, rough or hair over-processed from color treatments or perms. SheaMoistures High Porosity Moisture-Seal Shampoo is formulated with ultra-hydrating
https://www.thebraidbox.ch/product-page/shea-moisture-mongongo-high-porosity-mois-seal-shampoo13oz
Porosity & Your HairPorosity & Your Hair
The Test: Many, many people on the internet have tried simple tests for porosity. Of all the methods I have seen, I think the following method gives you most accurate results. To determine your hair porosity level using water, spritz a small section of curls with water and watch how your hair reacts - does your hair absorb the water quickly (indicating high porosity) or does it remain on top (indicating a low porosity level).. Normal Porosity: These are the lucky curls. It accepts and retains moisture inside the cuticle. The curls are full of bounce and elasticity and hold styles well. This hair can be dyed easily, and usually requires very little maintenance. Avoid using heat styling tools. When you do use hot tools, use a thermal protectant. Natural or Sulfate-free shampoos and conditioners are good to use. Leave in conditioners can be used to cure fly-aways.. High porosity: I used to have highly porose hair. High porosity hair can be a real pain. Symptoms of high porosity hair could be that ...
https://beingmartika.wordpress.com/2017/02/15/porosity-your-hair/
Acoustic methods for measuring the porosities of porous materials incorporating dead-end pores - Espace ÉTSAcoustic methods for measuring the porosities of porous materials incorporating dead-end pores - Espace ÉTS
Dupont, Thomas, Leclaire, Philippe et Panneton, Raymond. 2013. « Acoustic methods for measuring the porosities of porous materials incorporating dead-end pores ». Journal of the Acoustical Society of America, vol. 133, nº 4. pp. 2136-2145 ...
https://espace2.etsmtl.ca/id/eprint/16629/
types of porositytypes of porosity
When a porosity problem occurs, you first need to determine the type of porosity. Porosity is symbolized in phi (Ï ) and its value is expressed in percentage. And that means that women with high porosity hair will find that their hair responds well to many different types and sizes of proteins. High porosity values indicate high capacities of the reservoir rocks to contain these fluids, while low porosity values indicate the opposite. Similarly, the definitions of the standard densities associated with rocks then follows: Typically porosity is a limited space devoid of metal where gas was trapped during solidification. Factors Affecting Porosity of Soil. Types of Pores in Soil 3. Unless otherwise ascribed many of the other diagrams and the photomicrographs were created by Christopher Kendall. The porosity classification guide can help you determine the porosity type. They can do protein treatments more often and see beautiful hair from it. The bulk of mineral content is made of clay, silt and sand,
https://casa-italia.italiandiplomaticacademy.org/another-fine-akndtha/types-of-porosity-66d4af
Working with your hairs porosity! What is hair porosity?
You should also note that:. Even though your hair may be predominantly one type of porosity, some strands would be a different porosity. Secondly, one strand may be one porosity at the roots and another at the ends. For example, I think my hair is mostly high porosity but there might be some normal porosity strands. I have also noticed that my roots are normal porosity but my ends are high porosity. Hair care can be so confusing! In my next post, I will be talking more in-depth about determining your hair porosity and after that managing each of the porosity types. ...
http://thesizzlingmommy.com/2016/11/hair-porosity-meaning.html
Patent US4994037 - Absorbent structure designed for absorbing body fluids - Google PatentsPatent US4994037 - Absorbent structure designed for absorbing body fluids - Google Patents
In a disposable absorbent garment, an absorbent structure includes liquid absorbing material comprising an upper layer comprising preferably softwood fibers and having a density from about 0.03 to about 0.14 g/cc, a lower layer comprising preferably hardwood fibers, formed substantially separately from and underlying at least a portion of the upper layer, the second layer having top and bottom surfaces, a density from about 0.14 to about 0.3 g/cc, a total void volume greater than about 80%, an average pore size distribution generally less than the average pore size distribution of the upper layer. There is an overlap in the pore size distributions of the upper and lower layers such that the smallest pores in the upper layer are smaller than the largest pores in the lower layer and front and rear fluid storage pouches, preferably spaced from one another at the front one-third and rear one-third of the absorbent structure, respectively, each pouch comprise superabsorbent material disposed in a hydrophilic
http://www.google.ca/patents/US4994037
Controlled drug release from porous materials by plasma polymer deposition - Chemical Communications (RSC Publishing)Controlled drug release from porous materials by plasma polymer deposition - Chemical Communications (RSC Publishing)
In this communication, we present a novel approach for control of drug release from porous materials. The method is based on deposition of a plasma polymer layer with controlled thickness which reduces a pore diameter and, hence, defines the rate of drug release.
http://pubs.rsc.org/en/Content/ArticleLanding/CC/2010/B919840G
Hauptseminar Soft Matter SS 2019/Transport of electrolytes across porous materials - ICPWikiHauptseminar Soft Matter SS 2019/Transport of electrolytes across porous materials - ICPWiki
The transport of electrolytes across varying section channels or porous material is of paramount importance due to its relevance in diverse fields spanning from biology to oil extraction. Clearly in these scenarios the shape of the porous media or the ionic channel is crucial in determining the transport properties of the electrolyte, or viceversa, for every channel shape it is possible to identify an optimal protocol that maximizes the transport. In this seminar, we will present a simplified approach capable of capturing the role of the shape of the container in the overall transport. By means of our simplified approach we will show that novel dynamical regimes can be attained when the Debye length is comparable to the channel bottleneck. ...
https://www2.icp.uni-stuttgart.de/~icp/mediawiki/index.php?title=Hauptseminar_Soft_Matter_SS_2019/Transport_of_electrolytes_across_porous_materials&oldid=23971
Hauptseminar Soft Matter SS 2019/Transport of electrolytes across porous materials - ICPWikiHauptseminar Soft Matter SS 2019/Transport of electrolytes across porous materials - ICPWiki
The transport of electrolytes across varying section channels or porous material is of paramount importance due to its relevance in diverse fields spanning from biology to oil extraction. Clearly in these scenarios the shape of the porous media or the ionic channel is crucial in determining the transport properties of the electrolyte, or viceversa, for every channel shape it is possible to identify an optimal protocol that maximizes the transport. In this seminar, we will present a simplified approach capable of capturing the role of the shape of the container in the overall transport. By means of our simplified approach we will show that novel dynamical regimes can be attained when the Debye length is comparable to the channel bottleneck. ...
https://www2.icp.uni-stuttgart.de/~icp/mediawiki/index.php?title=Hauptseminar_Soft_Matter_SS_2019/Transport_of_electrolytes_across_porous_materials&oldid=24212
Porous Materials Inc.Porous Materials Inc.
Porous Materials Incorporated has six product lines and manufactures over thirty different instruments. In addition, we hold several US and International patents on novel technology for characterization of pore structure. ...
http://www.pmiapp.com
Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites - Nottingham ePrintsNumerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites - Nottingham ePrints
Numerical simulation with progressive damage criterion is implemented to investigate the effect of porosity on the bending properties of 2D cross-ply carbon/carbon (C/C) composites. The mechanical properties of Pyrocarbon matrix regarding the change of porosity are calculated by using Mori-Tanaka approach. Combining with the stiffness degradation scheme, the ultimate bending strengths are calculated in Abaqus though a user-defined subroutine (USDFLD). Delamination is modelled by inserting cohesive elements between two adjacent plies. A good agreement is obtained when the FEM results are compared to three-point bending experiments. The FEM results show that the bending strength decreases greatly with the increase of porosity. When the porosity reaches up to 18%, the bending strength is decreased by 57%. The major fracture behaviors are interlamination delamination and continuous crack damage in 90° plies. With the increase of porosity, more severe interlamination delamination will be slightly ...
http://eprints.nottingham.ac.uk/48906/
SVIBOR - Papers - project code: 2-15-020
Summary: The aim of this paper was to investigate and analyze microwave and convection drying kinetics of porous materials on laboratory scale. A wet clay plate was chosen as a representative of porous materials. General statements as regards a drying process, whether on a theoretical or analytical level, phenomenological or empirical, still presents on open issue. This is specially true for microwave drying. Modelling was based on elementary layer theory adapted to practical cases of wet plates drying of porous materials both in a laboratory convection dryer and laboratory test apparatus for microvave drying. During the drying process of shaped porous materials, it is inevitable to have knowledge of maximum allowed drying rate curve which can be only obtained by experimentation. Taking this into account special attention was payed to finding out the maximum allowed drying rate curve both for convection and microwave drying. It is, thereby, necessary to have a model that can sufficiently ...
http://mzos.hr/svibor/2/15/020/rad_e.htm
Surfaces of Nanoparticles and Porous Materials | Taylor & Francis GroupSurfaces of Nanoparticles and Porous Materials | Taylor & Francis Group
This innovative reference collects state-of-the-art procedures for the construction and design of nanoparticles and porous material while suggesting appropriate
https://www.taylorfrancis.com/books/9780367800567
页岩气表征 - 美国麦克仪器-比表面仪/物理吸附/化学吸附/压汞仪/粒度/孔隙度/真密度/包裹密度专业提供商页岩气表征 - 美国麦克仪器-比表面仪/物理吸附/化学吸附/压汞仪/粒度/孔隙度/真密度/包裹密度专业提供商
Mercury intrusion porosimetry is a valuable method for characterizing relative pore space dimensions. This dynamic technique is based on the intrusion of mercury into a porous structure under stringently controlled pressures. Mercury intrusion porosimetry permits the calculation of numerous sample properties such as pore size distributions, total pore volume, total pore surface area, median pore throat diameter, and sample densities (bulk and skeletal).. Capillary behavior and permeability are critical to reservoir behavior. Porosimetry is among the few techniques capable of probing the fine connected pore space of shales. This method is particularly useful in evaluation reservoir quality variations within a shale play and in petrotyping shale (Kale et al., 2010, Society of Petroleum Engineer).Various empirical transforms can be applied to estimate permeability from mercury intrusion data. While not quantitative, these estimates can provide a relative assessment of the variation in permeability. ...
http://www.micromeritics.com.cn/content_view.aspx?id=33&menu_id=10
Water Behavior in Hydrophobic Porous MaterialsWater Behavior in Hydrophobic Porous Materials
Finden Sie alle Bücher von Fleys Matthieu - Water Behavior in Hydrophobic Porous Materials. Bei der Büchersuchmaschine eurobuch.de können Sie antiquarische und Neubücher VERGLEICHEN UND SOFORT zum Bestpreis bestellen. 9783639091427
https://www.eurobuch.de/buch/isbn/9783639091427.html
Patent US20070049153 - Textured wiper material with multi-modal pore size distribution - Google PatentsPatent US20070049153 - Textured wiper material with multi-modal pore size distribution - Google Patents
Disclosed herein are textured nonwoven wiper materials. The textured nonwoven wiper material includes a meltblown nonwoven web material that has a first exterior surface and a second exterior surface, and at least the first exterior surface of the meltblown nonwoven web is a three-dimensional textured surface. The textured meltblown nonwoven web has a multi-modal pore size distribution that includes at least two major pore size peaks.
http://www.google.com/patents/US20070049153?dq=6,073,142
Nanoil For High Porosity Hair - check the best oil for you!
INTENDED USE: Nanoil For High Porosity Hair is one of the three oils available in the range. The high porosity version is designed to rebuild, moisten, beautify and protect dry, damaged hair. Nanoil will also take care of the dry sensitive and irritated scalp. COMPOSITION AND EFFECTS: Nanoil nourishes the scalp and bulbs and the […]
http://oilsfordryhair.com/nanoil-for-high-porosity-hair/
Shape-Anchored Porous Polymer Monoliths for Integrated Online Solid-Phase Extraction-Microchip Electrophoresis-Electrospray...
Shape-Anchored Porous Polymer Monoliths for Integrated Online Solid-Phase Extraction-Microchip Electrophoresis-Electrospray Ionization Mass Spectrometry ...
https://research.aalto.fi/en/publications/shapeanchored-porous-polymer-monoliths-for-integrated-online-solidphase-extractionmicrochip-electrophoresiselectrospray-ionization-mass-spectrometry
Pore size distribution and adsorption selectivity of sepiolite | Clay Minerals | GeoScienceWorldPore size distribution and adsorption selectivity of sepiolite | Clay Minerals | GeoScienceWorld
S. Inagaki, Y. Fukushima, Hikaru Doi, O. Kamigaito; Pore size distribution and adsorption selectivity of sepiolite. Clay Minerals ; 25 (1): 99-105. doi: https://doi.org/. Download citation file:. ...
https://pubs.geoscienceworld.org/claymin/article-abstract/25/1/99/55924/Pore-size-distribution-and-adsorption-selectivity?redirectedFrom=fulltext
Experimental Investigation of the Effect of Pore Size Distribution on Nano-particle Capture Efficiency Within Ceramic...Experimental Investigation of the Effect of Pore Size Distribution on Nano-particle Capture Efficiency Within Ceramic...
The effect of the pore size distribution on size-resolved filtration efficiency was investigated for two ceramic particulate filters using
https://www.springerprofessional.de/experimental-investigation-of-the-effect-of-pore-size-distributi/18777950
Combined characterization of pore size distribution and permeability in fibrous textiles by capillary flow porometry - Espace...Combined characterization of pore size distribution and permeability in fibrous textiles by capillary flow porometry - Espace...
Causse, P. et Trochu, F.. 2018. « Combined characterization of pore size distribution and permeability in fibrous textiles by capillary flow porometry ». In 14th International Conference on Flow Processing in Composite Materials (Lulea, Switzerland, May 30 - June 01, 2018 ...
https://espace2.etsmtl.ca/id/eprint/21215/
High Porosity Particulate Beds Structurally Stabilized by Epoxy - Energy Innovation Portal
The present invention provides a porous thermal regenerator apparatus and method of making a porous thermal regenerator comprised of metallic or intermetallic particles that are held together in a porous three dimensional network by a binding agent (such as epoxy). One aspect of the apparatus is that the porosity of the porous thermal regenerator is greater than the tapped porosity of the particles comprising the porous thermal regenerator; moreover, the high-porosity apparatus is durable, that is, it remains intact when exposed to strong time-varying magnetic forces while immersed in aqueous fluid. This high porosity, when combined with high strength and aqueous heat transfer fluid stability, leads to improved porous thermal regenerators and concomitantly to magnetic refrigerators with improved performance.
http://techportal.eere.energy.gov/application.do/ID=29481
Porosity sealing
Porosity sealing , is the process of filling a porous substrate to make it airtight . Porosity is sealed through the process of vacuum impregnation . Vacuum impregnation is the preferred method for sealing parts to prevent fluids or gases from leaking under pressure. Vacuum impregnation seals porosity and leak paths that form during the casting or molding process. It does so without changing the castings' dimensional or functional characteristics and allows manufacturers to use parts that would otherwise be scrapped. There are three types of porosity; Flow Porosity, Gas Porosity and Shrink Porosity. Porosity is found in many cast metal components, but it commonly found in aluminium and magnesium die castings. Process Porosity sealing is a four-step process: In the impregnation chamber (also known as an autoclave, pressure vessel or vacuum vessel) air is evacuated from the leak path in the part by using a deep vacuum. The evacuated leak path is filled with sealant by covering the part with the
https://www.revolvy.com/topic/Porosity+sealing
Dipòsit Digital de la Universitat de Barcelona: Influence of porosity on the critical currents of trifluoroacetate-MOD...Dipòsit Digital de la Universitat de Barcelona: Influence of porosity on the critical currents of trifluoroacetate-MOD...
The influence of porosity on the superconducting properties have been investigated on YBa/sub 2/Cu/sub 3/O/sub 7/ thin films deposited on LaAlO/sub 3/ [100] substrates by the so-called Trifluoroacetate (TFA) route. Micro-Raman spectroscopy have been used to determine the concentration of c-axis grains /spl delta/ in different samples and their influence on the final film porosity as observed from SEM imaging. This has been compared with measurements of resistivity and critical currents in the same samples. We prove that this /spl delta/ fraction is the main parameter controlling the porosity and hence the normal-state resistivity of the thin films. The optimization of the microstructure of these YBa/sub 2/Cu/sub 3/O/sub 7/ TFA films allow to have high critical currents : J/sub c/ = 3 /spl times/ 10/sup 6/ A/cm/sup 2/ at 77 K ...
http://diposit.ub.edu/dspace/handle/2445/117634
In-Pore stress by drying-induced capillary bridges inside porous materials. - INSU - Institut national des sciences de lUniversIn-Pore stress by drying-induced capillary bridges inside porous materials. - INSU - Institut national des sciences de lUnivers
We present here some evidences that capillary liquid bridges are able to deform micrometric cylindrical pores by tensile stress. Brine-soaked filter membranes are submitted to drying conditions leading to NaCl precipitation inside the 5-10 μm pores. A close examination demonstrated that two forms of NaCl crystallites are successively generated. First, primary cubic crystals grow, driven by the permanent evaporation. When this angular primary solid gets near the pore wall, while the evaporation makes the pore volume to be partly invaded by air, capillary liquid can bridge the nowsmall gap between the halite angles and the pore wall. In a second step, these small capillary bridges are frozen by a secondary precipitation event of concave-shaped NaCl. The proposed interpretation is that the liquid capillary bridges deform the host matrix of the membrane, and the situation is fossilized by the growth of solid capillary bridges. A quantitative interpretation is proposed and the consequences towards the
https://hal-insu.archives-ouvertes.fr/insu-00551322
Pump Hair Porosity Equalizer SP - Pump Haircare Salon ProfessionalPump Hair Porosity Equalizer SP - Pump Haircare Salon Professional
Designed For High Porosity hair! Not sure if you have high porosity? Do the test! Take one strand of hair that has fallen out or from your brush and place in a glass of water. Wait a few minutes and if your hair floats you have low porosity hair. If it sinks to the bottom, you have high porosity hair and this product i
https://pumphaircareb2b.com/products/hair-porosity-equalizer
Controls on primary porosity and permeability development in igneous rocks<...Controls on primary porosity and permeability development in igneous rocks<...
TY - JOUR. T1 - Controls on primary porosity and permeability development in igneous rocks. AU - Petford, Nick. PY - 2003. Y1 - 2003. N2 - Some of the more important processes leading to the development of primary igneous porosity due to the cooling and crystallization of magma are reviewed. A distinction is made between volcanic and plutonic rocks, and crystalline and granular volcanic material. Porosity in each rock type is classified according to a proposed effective length scale and geometry into diffusive (Class D) and macroscopic flow (Class F) features. Estimated ranges in values of porosity and permeability are given for a wide selection of igneous rock types, and comparison is made with permeability variations (Δk) derived for both the continental and oceanic crust. While fracture porosity is dominant in most crystalline materials, primary porosity development may play an important role in the final (total) porosity in igneous basement. Some types of primary porosity and permeability ...
https://researchers.mq.edu.au/en/publications/controls-on-primary-porosity-and-permeability-development-in-igne
Use of Capillary Pressure Data and Log Calculated Water Saturation for the Characterization of Dual Porosity, Dual Permeability...Use of Capillary Pressure Data and Log Calculated Water Saturation for the Characterization of Dual Porosity, Dual Permeability...
Use of Capillary Pressure Data and Log Calculated Water Saturation for the Characterization of Dual Porosity, Dual Permeability Systems. This paper describes a simple method to divide the effective porosity values that can be calculated from log analysis into two flow media (fracture and matrix) pore volumes for use in numerical simulation models. The division of the porosity is based on the assumption that the total porosity of the system is made up from two contributing rock types or lithofacies that have distinct pore size and/or pore size distribution such that they can be represented by different capillary pressure functions. This assumption is applicable to the non-fractured as well as to the fractured systems.. When the method is used for the fractured systems, the fracture is typically represented by a zero capillary pressure value (gravity segregation). The matrix has its own laboratory measured capillary pressure curve. Based on a predetermined water-hydrocarbon contact and using the ...
http://www.nitecllc.com/expertise/use-of-capillary-pressure-data-and-log-calculated-water-saturation-for-the-characterization-of-dual-porosity-dual-permeability-systems/
American Society for Testing and Materials (1999) Standard Test Method for Determination of Pore Volume and Pore Volume...American Society for Testing and Materials (1999) Standard Test Method for Determination of Pore Volume and Pore Volume...
American Society for Testing and Materials (1999) Standard Test Method for Determination of Pore Volume and Pore Volume Distribution of Soil and Rock by Mercury Intrusion Porosimetry, Designation D 4404-84 (Reapproved 1992). Annual Book of ASTM Standards, 04.08, 588-592.
https://www.scirp.org/reference/referencespapers.aspx?referenceid=1522695
Porous objects having immobilized encapsulated biomolecules - Patent # 8709464 - PatentGenius
A porous object includes a porous material having internal pore surfaces and external pore surfaces. Releasing material encapsulated biomolecules are immobilized on at least one of the internal pore surfaces, at least one of the external pore surfaces, or combinations thereof.
http://www.patentgenius.com/patent/8709464.html
Patent US20050230252 - Microfluidic test device - Google PatentsPatent US20050230252 - Microfluidic test device - Google Patents
The present invention provides biosensor test devices for measuring the presence or amount of an analyte in a biological fluid. The devices have a base plate that has an electrode system embedded therein, and a hydrophilic porous material situated on the base plate. A hydrophobic protective layer is situated on the hydrophilic porous material, and a cover is placed on the hydrophobic protective layer to complete the device. Some embodiments also use an insulating layer, which can be situated between the base layer and the hydrophilic porous material. The cover of the device has an opening present therein, situated over the electrodes, so that the electrodes communicate with the exterior of the device through the groove. The insulating layer can also have a groove situated therein, which in one embodiment is placed to align with the groove in the cover. The invention also provides methods of manufacturing the devices, and methods of using them.
http://www.google.ca/patents/US20050230252
SSOE - SSOE Resources - Five Pitt engineering faculty set university and school record by receiving competitive NSF CAREER...SSOE - SSOE Resources - Five Pitt engineering faculty set university and school record by receiving competitive NSF CAREER...
Summary: The development of new porous materials is critical to improving important gas storage and separations applications, and will have a positive impact on reducing greenhouse gases. This includes the deployment of methane and/or hydrogen gases as alternative fuels, development of new filters for removing trace gaseous contaminants from air, and separation of carbon dioxide from flue gas to mitigate greenhouse emissions from the burning of fossil fuels. Dr. Wilmers grant will enable his lab to utilize computational methods to probe the limits of material performance for physical adsorption to porous materials. Although past computational screening has suggested physical limits of adsorption capacity for metal-organic frameworks (MOFs), this project will explore the novel use of so-called pseudomaterials, which represent all potential atomistic arrangements of matter in a porous material ...
http://www.engineering.pitt.edu/News/2017/Five-2017-NSF-CAREER-Awards/
Meso-Architecture Block Copolymers with High Surface Area Styrene-Bridged Organosilica Particles as Constituent for the Stimuli...Meso-Architecture Block Copolymers with High Surface Area Styrene-Bridged Organosilica Particles as Constituent for the Stimuli...
Meso-Architecture Block Copolymers with High Surface Area Styrene-Bridged Organosilica Particles as Constituent for the Stimuli-Responsive Remediation of Water
https://chemrxiv.org/articles/preprint/Meso-Architecture_Block_Copolymers_with_High_Surface_Area_Styrene-Bridged_Organosilica_Particles_as_Constituent_for_the_Stimuli-Responsive_Remediation_of_Water/11815935/1
Porosity of Silica Monoliths with Tailored Mesopores of Ink-Bottle Shape Determined by Nitrogen Adsorption and Positron...
The comparison of pore size distributions obtained with the use of two porosimetric methods: low temperature nitrogen sorption (LN2) and positron annihilation lifetime spectroscopy (PALS), was performed for porous silica monoliths. Four investigated samples were prepared under various synthesis conditions. Nitrogen sorption showed the presence of bottle-shaped pores in all investigated samples. In addition, it seems that the presence of methanol during synthesis influences porosity to a greater extent than organic additives. Quite good agreement between the LN2 and PALS results was observed only for the silica monolith synthesized with β-cyclodextrins as pore directing agent. The biggest discrepancy in the results obtained from these two techniques was observed for the silica gel synthesized with no additives. The origin of such discrepancies, taking into account the shape of pore size distribution and deficiencies of data analysis techniques, is discussed ...
http://psjd.icm.edu.pl/psjd/element/bwmeta1.element.bwnjournal-article-appv132n5p29kz
Porosity - calculator - fx​SolverPorosity - calculator - fx​Solver
The volume of the voids of a soil over the total volume of the sample defines the porosity of a soil. Used in geology, hydrogeology, soil science, and building science, the porosity of a porous medium (such as rock or sediment) describes the fraction of void space in the material, where the void may contain. Porosity is a fraction between 0 and 1, typically ranging from less than 0.01 for solid granite to more than 0.5 for peat and clay. It may also be represented in percent terms by multiplying the fraction by 100. Porosity is the ratio of pore volume to its total volume. Porosity is controlled by: rock type, pore distribution, cementation, diagenetic history and composition. Porosity is not controlled by grain size, as the volume of between-grain space is related only to the method of grain packing.
https://www.fxsolver.com/browse/formulas/Porosity
5 Signs Indicating You Have High Porosity Hair - Hairlicious Inc.
Hair that has a high porosity tends to have raised cuticles and the hair too-readily absorbs moisture. Overly-porous hair also releases moisture easily, thus; becoming dry and prone to damage. Perms and straighteners will process much faster in high-porosity hair. Having highly porous hair does not mean your hair is damaged, it just means you have to use different methods when taking care of it ...
https://www.hairliciousinc.com/2014/01/5-signs-indicating-you-have-high.html
583bv) Effect of Confinement in Nanopores of Carbon On Reaction Kinetics, Catalyst Activity and Selectivity | AIChE583bv) Effect of Confinement in Nanopores of Carbon On Reaction Kinetics, Catalyst Activity and Selectivity | AIChE
Polymer-derived nanoporous carbon materials with high thermal stability, high surface area and narrow pore size distribution have been widely used as catalyst supports. Catalyst performance (activity and selectivity) is significantly affected by the pore size and porosity of the carbon support. Mass transfer limitation inside the pores and steric hindrance imposed by the pore walls can enhance catalyst selectivity and alter reaction kinetics. In this study, platinum embedded in nanoporous carbon spheres was used as a shape selective catalyst for liquid phase hydrogenation of alkenes. Experimental data obtained for different synthesized catalysts with different porosity and pore sizes were used to estimate kinetic parameters (Langmuir-Hinshelwood) and diffusion coefficients for different reactants and products inside the pores, using numerical solution of reaction-diffusion equation. It was shown that adsorption equilibrium constants and reaction rate constants are larger inside the nanopores of ...
https://www.aiche.org/conferences/aiche-annual-meeting/2013/proceeding/paper/583bv-effect-confinement-nanopores-carbon-on-reaction-kinetics-catalyst-activity-and-selectivity-1
Consolidation and Permeability Behavior of High Porosity Baltic Seabed by Ajoykumar AgConsolidation and Permeability Behavior of High Porosity Baltic Seabed by Ajoykumar Ag
The consolidation and permeability characteristics of high porosity surficial sediments from the Coastal Benthic Boundary Layer (Naval Research Laboratory) Special Research Program test site in the EckemfOrde Bay Baltic Sea were studied using a backpressured, constant rate of deformation (CRD) consolidation and permeability testing system driven by flow pumps The silty clay sediments from the Baltic test site are characterized by high void ratios (above 6), large organic content and dissolved or free methane gas bubbles. The high organic content (up to 17%) influences several of the unique features of these sediments including high water contents (up to 500%; porosities up to 93%), high consistency limits and high compressibility. The sediments are dominated by clay and silt size fractions (42% and 55% respectively) with a small percentage (3%) of sands. Organic content determinations performed on selected samples indicated a variation from 9% to 17% in the organic fraction (dry weight basis). Atterberg
http://digitalcommons.uri.edu/theses/916/
PREMIER PRO MIX HIGH POROSITY - Golden Acre Home & GardenPREMIER PRO MIX HIGH POROSITY - Golden Acre Home & Garden
PRO-MIX® HP, with its high perlite content, provides a growing environment which benefits growers looking for significant drainage capacity, increased air porosity and lower water retention. The added benefit of a fibrous peat moss and coarse perlite makes this formulation ideal for growers demanding a superior quality product adapted to their needs for watering flexibility and crop seasonality. HP=high porosity. ...
https://www.goldenacre.ca/shop-all-departments/soils-additives-2/soils/premier-pro-mix-high-porosity-select-sizes/
Patent US6635174 - Foamed material filled with inner material - Google PatentsPatent US6635174 - Foamed material filled with inner material - Google Patents
A matrix including: a) a polymeric base matrix including macropores (pore system 1) and b) an interior material, possibly porous (pore system 2), retained within the macropores. The matrix is characterized in that there is a continuous free volume between the interior material and the pore walls of the macropores. A method for manufacturing a matrix including a base matrix having macropores in which an interior material is located. The method is characterized in including the steps: (I) providing a base matrix having macropores; (ii) filling the macropores with a soluble form of the interior material; (iii) transforming the insoluble from to an insoluble form; (iv) shrinking the insoluble form; and (v) irreversibly stabilizing the material in its shrunken form. The matrix can be used in separation methods, cell culturing, solid phase synthesis of organic molecules, and in catalytic reactions (such as enzyme reactions) and other uses in which porous support matrices are used.
http://www.google.com/patents/US6635174?dq=2,726,156,
PorosityPorosity
This can replace the primary porosity or coexist with it (see dual porosity below). Fracture porosity This is porosity ... Secondary porosity A subsequent or separate porosity system in a rock, often enhancing overall porosity of a rock. This can be ... Porosity may take on several forms from interconnected micro-porosity, folds, and inclusions to macro porosity visible on the ... Absolute Porosity & Effective Porosity Calculations Geology Buzz: Porosity (Articles with short description, Short description ...
https://en.wikipedia.org/wiki/Porosity
Porosity sealingPorosity sealing
In metal castings, porosity is typically considered any void found in the casting. Casting porosity can be caused by gas ... If the porosity is not sealed, fluids may bleed out and negatively affect the finish. Sealing the porosity before secondary ... Porosity is inherent to most manufacturing processes. Porosity is only considered a defect if it is interconnected and creates ... Casting defects caused by porosity can affect the part's structural integrity, creating a failure point. Porosity can also ...
https://en.wikipedia.org/wiki/Porosity_sealing
Gas porosityGas porosity
... is the fraction of a rock or sediment filled with a gas. Determining the true porosity of a gas filled formation ... The process of estimating the true porosity in the gas region relies on the appropriate use of the two porosity logs. The ... Therefore, logging a gas-filled formation, results in a porosity estimate that is higher than the true porosity. Overlaying the ... The rate at which the two porosity logs approach the true porosity depends upon their radial sensitivities and their respective ...
https://en.wikipedia.org/wiki/Gas_porosity
Effective porosityEffective porosity
That is: Effective porosity = Total porosity − CBW {\displaystyle {\text{Effective porosity}}={\text{Total porosity}}-{\text{ ... Effective porosity ϕ e 3 {\displaystyle \phi _{e3}} Total porosity minus clay-bound water (CBW). Effective porosity ϕ e 4 {\ ... "total porosity" (notwithstanding comments in ). This core total porosity will generally be equivalent to the total porosity ... this definition of effective porosity equates to total porosity. Total porosity The volume of the reservoir rock which is fluid ...
https://en.wikipedia.org/wiki/Effective_porosity
Porosity Storage ReservoirPorosity Storage Reservoir
The porosity, or void space, refers to the open spaces between the sand and gravel, and it is in this area that the water is ... Porosity Storage Reservoir innovations and technologies were created by Donald O. Summers and Stanley R. Peters on behalf of ... Porosity Storage Reservoirs are man-made water storage reservoirs located in shallow alluvial (sand and gravel) deposits. ...
https://en.wikipedia.org/wiki/Porosity_Storage_Reservoir
Hydrogen gas porosityHydrogen gas porosity
... is an aluminium casting defect in the form of a porosity or void in an aluminium casting caused by a high ... Aluminium foundries want to produce high-quality aluminum castings with minimum porosity. Hydrogen porosity can be reduced by ... Hydrogen causes porosity in aluminum products leading to many casting defects, reduced mechanical properties like fatigue and ... As the aluminium freezes, some of the hydrogen comes out of solution and forms bubbles, creating porosity in the solid ...
https://en.wikipedia.org/wiki/Hydrogen_gas_porosity
Formation evaluation neutron porosityFormation evaluation neutron porosity
... a neutron log will show a low porosity value. This characteristic allows a neutron porosity log to be used with other porosity ... Determination of porosity is one of the most important uses of neutron porosity log. Correction parameters for lithology, ... Neutron temperature Effective porosity Gas porosity John T. Dewan, "Open-Hole Nuclear Logging - State of the Art" - SPWLA ... Neutron porosity measurement employs a neutron source to measure the hydrogen index in a reservoir, which is directly related ...
https://en.wikipedia.org/wiki/Formation_evaluation_neutron_porosity
Sliced Porosity Block - CapitaLand Raffles City ChengduSliced Porosity Block - CapitaLand Raffles City Chengdu
The Sliced Porosity Block is heated and cooled with 468 geothermal wells and the large ponds in the plaza harvest recycled ... Sliced Porosity Block consists of 5 mixed-use towers with offices, apartments, retail and a hotel, which surround a large ... Sliced Porosity Block - CapitaLand Raffles City Chengdu is a building complex built in Chengdu, China designed by Steven Holl ...
https://en.wikipedia.org/wiki/Sliced_Porosity_Block_-_CapitaLand_Raffles_City_Chengdu
Joseph GelferJoseph Gelfer
"Occupy Porosity." OnlineOpinion, April 2012. "2012 and Indigenous Fantasy." Fortean Times, February 2012. "Interview with ...
https://en.wikipedia.org/wiki/Joseph_Gelfer
Richard J. GoodwinRichard J. Goodwin
"Real-Time Porosity". NIEA. Archived from the original on 4 May 2013. Retrieved 8 May 2013. Goodwin, Richard (2011). Porosity: ... Goodwin's core agenda is creating what he calls "porosity". He argues, "Security seeks to close a city down. Porosity seeks to ... Performance to Porosity. Australia: Craftsman House. pp. 8-11. "Porosity". COFA. Retrieved 8 May 2013. "This years British ... "Real-time Porosity: Using computer gaming technology to map and analyse pedestrian movement in public and private space". ...
https://en.wikipedia.org/wiki/Richard_J._Goodwin
PetrophysicsPetrophysics
Porosity: The percentage of a given volume of rock that is pore space and can therefore contain fluids; symbolized as ϕ {\ ... ΦT - Total porosity (PHIT), which includes the pore space in sand and shale. Sw - Total water saturation, the fraction of the ... Φsh - Shale porosity. Volumetric fraction of pore space in shale. These pore space is filled with bounded water by definition. ... Φe - Effective shale corrected porosity which includes only the pore space in sand. The pore space in shale which is filled ...
https://en.wikipedia.org/wiki/Petrophysics
Shell moldingShell molding
High porosity possible. Secondary machining often required. High labor cost if done manually. Cylinder head, connecting rod, ...
https://en.wikipedia.org/wiki/Shell_molding
WellWell
e.g., porosity). The volume flow rate into the well can be written as a function of the rate of change of the well water level ...
https://en.wikipedia.org/wiki/Well
Soil morphologySoil morphology
Soil porosity is complex. Traditional models regard porosity as continuous. This fails to account for anomalous features and ... The porosity of a soil is an important factor that determines the amount of water a soil can hold, how much air it can hold, ... Porosity of topsoil is a measure of the pore space in soil which typically decreases as grain size increases. This is due to ... Porosity of a soil is a function of the soil's bulk density, which is based on the composition of the soil. Sandy soils ...
https://en.wikipedia.org/wiki/Soil_morphology
Porous setPorous set
Zajíček, L. (1987-1988). "Porosity and σ-porosity". Real Anal. Exchange. 13 (2): 314-350. ISSN 0147-1937. MR943561 (Metric ... The relationship between porosity and being nowhere dense can be illustrated as follows: if E is nowhere dense, then for x ∈ X ...
https://en.wikipedia.org/wiki/Porous_set
Earth Revealed: Introductory GeologyEarth Revealed: Introductory Geology
It discusses aquifers and aquicludes; rock porosity and permeability; effluence; artesian wells; the water table; the formation ...
https://en.wikipedia.org/wiki/Earth_Revealed:_Introductory_Geology
Sonic loggingSonic logging
This means that a sonic log can be used to calculate the porosity, confining stress, or pore pressure of a formation if the ... Many relationships between travel time and porosity have been proposed, the most commonly accepted is the Wyllie time-average ... porosity. The accuracy of modern compressional and shear sonic logs obtained with wireline logging tools is well known now to ... most notably decreasing with an increasing effective porosity and increasing with an increasing effective confining stress. ...
https://en.wikipedia.org/wiki/Sonic_logging
Ice-sheet dynamicsIce-sheet dynamics
Whether a bed is hard or soft depends on the porosity and pore pressure; higher porosity decreases the sediment strength (thus ... Porosity may vary through a range of methods. Movement of the overlying glacier may cause the bed to undergo dilatancy; the ... A soft bed, with high porosity and low pore fluid pressure, allows the glacier to move by sediment sliding: the base of the ... This increases the porosity. Unless water is added, this will necessarily reduce the pore pressure (as the pore fluids have ...
https://en.wikipedia.org/wiki/Ice-sheet_dynamics
Silicon organic water repellentSilicon organic water repellent
... porosity decreasing impregnation of concrete; manufacture of acid-resistant cement; Glasswork and cerarnics: antireflection ...
https://en.wikipedia.org/wiki/Silicon_organic_water_repellent
Shielding gasShielding gas
Reduces weld porosity in copper. Argon-hydrogen H-2 (98% argon/2% hydrogen) H-5 (95% argon/5% hydrogen) H-10 (80% argon/20% ... Sulfur hexafluoride can be added to shield gas for aluminium welding to bind hydrogen in the weld area to reduce weld porosity ... More than 5% oxygen makes the shielding gas oxidize the electrode, which can lead to porosity in the deposit if the electrode ... Increased oxygen makes the shielding gas oxidize the electrode, which can lead to porosity in the deposit if the electrode does ...
https://en.wikipedia.org/wiki/Shielding_gas
Permeability (Earth sciences)Permeability (Earth sciences)
The permeability of a medium is related to the porosity, but also to the shapes of the pores in the medium and their level of ... "CalcTool: Porosity and permeability calculator". www.calctool.org. Retrieved 2008-05-30. L. J. Klinkenberg, "The Permeability ... Porosity and Permeability , Geology". courses.lumenlearning.com. Retrieved 2022-01-14. Fu, Jinlong; Thomas, Hywel R.; Li, ... of Porous Media Graphical depiction of different flow rates through materials of differing permeability Web-based porosity and ...
https://en.wikipedia.org/wiki/Permeability_(Earth_sciences)
PhiPhi
Porosity in geology and hydrology. Strength (or resistance) reduction factor in structural engineering, used to account for ...
https://en.wikipedia.org/wiki/Phi
Laura J. CrosseyLaura J. Crossey
"The Chemistry of Secondary Porosity". In McDonald, David A.; Surdam, Ronald C. (eds.). Clastic Diagenesis. AAPG Memoir. Vol. 37 ...
https://en.wikipedia.org/wiki/Laura_J._Crossey
Preclinical imagingPreclinical imaging
Deng CX, Sieling F, Pan H, Cui J (April 2004). "Ultrasound-induced cell membrane porosity". Ultrasound in Medicine & Biology. ...
https://en.wikipedia.org/wiki/Preclinical_imaging
Pore structurePore structure
The proportion of empty space in a porous media is called porosity. It is determined by dividing the volume of the pores or ... It is expressed as a percentage or as a decimal fraction between 0 and 1. Porosity for the majority of rocks ranges from less ... The samples' total volume and pore space volume were measured in order to calculate the porosities. Measuring pore space volume ... Pore structure is a common term employed to characterize the porosity, pore size, pore size distribution, and pore morphology ( ...
https://en.wikipedia.org/wiki/Pore_structure
Copper indium gallium selenide solar cellCopper indium gallium selenide solar cell
The increased rate is a result of the greater surface area associated with porosity. Porosity produces rougher absorber ...
https://en.wikipedia.org/wiki/Copper_indium_gallium_selenide_solar_cell
Chvorinovs ruleChvorinov's rule
Gas solubility and porosity" (PDF). Georgia Institute of Technology. Archived from the original (PDF) on 14 January 2015. ... because if the riser solidifies first then defects like shrinkage or porosity can form. Chvorinov, Nicolas (1940). "Theorie der ...
https://en.wikipedia.org/wiki/Chvorinov's_rule
GevgelijaGevgelija
Mile Radenković; 21-01-2008 Megleno-Romanians in Gudurica: Language and Identity Dimova, Rozita (2021). Border Porosities. ...
https://en.wikipedia.org/wiki/Gevgelija
SonoelectrochemistrySonoelectrochemistry
... increase in electrodeposit porosity and hardness; increase in gas removal from electrochemical solutions; increase in electrode ...
https://en.wikipedia.org/wiki/Sonoelectrochemistry
Postage stamp paperPostage stamp paper
Porosity is a measure of how the paper responds to a liquid. There are several popular stamp collecting terms. On-paper refers ... Porosity is a characteristic of paper. Wood fibers are hydrophilic or water loving. Sizing is added to paper to create a ...
https://en.wikipedia.org/wiki/Postage_stamp_paper
CDC - Mining - Prediction of Porosity and Permeability of Caved Zone - NIOSHCDC - Mining - Prediction of Porosity and Permeability of Caved Zone - NIOSH
The porosity and permeability of the caved zone (gob) in a longwall operation impact many ventilation and methane control ... Mining Publication: Prediction of Porosity and Permeability of Caved Zone in Longwall Gobs. Keywords: Gases Gobs Longwall ... Thus, there has always been debate on the likely values of porosity and permeability of the caved zone and how these values can ... The results suggest that the gob porosity and permeability values can be predicted by this approach and the presented models ...
https://www.cdc.gov/niosh/mining/works/coversheet1621.html
Fluid-rich subducting topography generates anomalous forearc porosity | NatureFluid-rich subducting topography generates anomalous forearc porosity | Nature
Capillary Porosity in Hardened Cement PasteCapillary Porosity in Hardened Cement Paste
The porosity and pore size distributions of cement pastes of water/cement ratios of 0.35 and 0.55 were measured by high ... The porosity and pore size distributions of cement pastes of water/cement ratios of 0.35 and 0.55 were measured by high ... The variation of mercury porosity with maturity was found to correlate well with generally held concepts of the hydration of ...
https://www.astm.org/jte11604j.html
Innertube Porosity?
By porosity I mean the very slow leakdown rate that... ... I was wondering if anyone has any information on the porosity ... I was wondering if anyone has any information on the porosity of. various kinds / brands of innertubes. By porosity I mean the ... I was wondering if anyone has any information on the porosity of. , various kinds / brands of inner tubes. By porosity I mean ... I was wondering if anyone has any information on the porosity of. ,, various kinds / brands of inner tubes. By porosity I mean ...
https://www.cyclingforums.com/threads/innertube-porosity.259355/
Hair Porosity: What Is It and What Type Do You Have?Hair Porosity: What Is It and What Type Do You Have?
Knowing what type of hair porosity you have can help you understand how to manage, treat, and care for your hair. ... Hair porosity is your hairs ability to absorb and retain moisture. ... What does hair porosity mean? To understand the concept of hair porosity, it helps to know a bit about the structure of your ... High porosity: Cuticles that are more widely spaced. This article will take a closer look at what affects the porosity of your ...
https://www.healthline.com/health/hair-porosity%23what-is-hair-porosity
Realistic skin porosity with Z-Brush Tutorial - ZBrushCentralRealistic skin porosity with Z-Brush Tutorial - ZBrushCentral
... streamlines the porosity detailing process and accentuates the organic aspect of the skin, being also… ... Realistic skin porosity with Z-Brush Tutorial The system that I present is part of my current pipeline with ZBrush, ... Get realistic skin porosity with ZBrush, step by step. In this example I will start from a sphere, it is applicable to any ... "Standard brush in DragRect mode with an Alpha of porosity". you have some special alpha map in mind? I really doubt it could by ...
https://www.zbrushcentral.com/t/realistic-skin-porosity-with-z-brush-tutorial/211295
Carbonate Reservoirs: Porosity, Evolution and Diagenesis in a Sequence Stratigraphic Framework, Volume 55 - 1st EditionCarbonate Reservoirs: Porosity, Evolution and Diagenesis in a Sequence Stratigraphic Framework, Volume 55 - 1st Edition
Porosity, Evolution and Diagenesis in a Sequence Stratigraphic Framework, Volume 55 - 1st Edition. Print Book & E-Book. ISBN ... Intragrain porosity.. Depositional porosity of mud-bearing sediments.. Framework and fenestral porosity.. Secondary Porosity.. ... Secondary porosity formation by dissolution.. Secondary porosity associated with dolomitization.. Secondary porosity associated ... Diagenesis/porosity model for a ramp in a rising sea level (TST).. Diagenesis/porosity model for a rimmed shelf during a rising ...
https://www.elsevier.com/books/carbonate-reservoirs-porosity-evolution-and-diagenesis-in-a-sequence-stratigraphic-framework/moore/978-0-444-50838-6
low porosity hair routinelow porosity hair routine
... low porosity, low porosity hair, moisturize low porosity hair. In the simplest terms, the fibers of low porosity hair are tight ... Low porosity hair care regimen High porosity hair has a unique struggle - the art of retention. Low Porosity hair is known for ... Your hair takes a long time … Roux Porosity Control is a low porosity hair nightmare. But with low porosity hair, you should ... The Low Porosity Hair Regimen (at a Glance) 1. Its a good idea to have a low porosity hair regimen in place if you know you ...
https://laborunionreport.com/311yg/710a36-low-porosity-hair-routine
Hair Porosity ExplainedHair Porosity Explained
... heres how to identify it and how to treat low porosity hair. ... Ever heard the term hair porosity and wondered what it meant? ... How to look after low porosity hair. While having medium and high porosity hair is a good thing, low porosity isnt. If your ... What is hair porosity?. Image Credit: Shutterstock. "Hair Porosity measures the hairs capacity to absorb and retain moisture, ... How to test hair porosity. Image Credit: Shutterstock. The easiest way to test for hair porosity is to take a glass of water ...
https://www.idiva.com/beauty/hair/hair-porosity-explained/18026783
PDF] Ultrahigh Porosity in Metal-Organic Frameworks | Semantic ScholarPDF] Ultrahigh Porosity in Metal-Organic Frameworks | Semantic Scholar
Members of this series of MOFs show exceptional porosities and gas (hydrogen, methane, and carbon dioxide) uptake capacities. ... can achieve very high porosity for gas absorption. However, as the materials develop larger void spaces, there is also more ... Ultrahigh Porosity in Metal-Organic Frameworks. @article{Furukawa2010UltrahighPI, title={Ultrahigh Porosity in Metal-Organic ... A route to high surface area, porosity and inclusion of large molecules in crystals. *H. Chae, Diana Y. Siberio-Pérez, +5 ...
https://www.semanticscholar.org/paper/Ultrahigh-Porosity-in-Metal-Organic-Frameworks-Furukawa-Ko/688512b22a988a13ef1c68f40a3117f0d121adac
Influence of Texture on Porosity and Permeability of Unconsolidated Sand1 | AAPG Bulletin | GeoScienceWorldInfluence of Texture on Porosity and Permeability of Unconsolidated Sand1 | AAPG Bulletin | GeoScienceWorld
Porosity values were determined for two packings, designated as "dry-loose" and "wet-packed." Porosity data for "wet-packed" ... These experimental data agree within 5 porosity percent with framework porosity values obtained for natural packing of 25 ... Influence of Texture on Porosity and Permeability of Unconsolidated Sand1 D. C. Beard; D. C. Beard ... D. C. Beard, P. K. Weyl; Influence of Texture on Porosity and Permeability of Unconsolidated Sand. AAPG Bulletin 1973;; 57 (2 ...
https://pubs.geoscienceworld.org/aapgbull/article-abstract/57/2/349/35737/Influence-of-Texture-on-Porosity-and-Permeability?redirectedFrom=fulltext
Effects of vitamin K2 on cortical and cancellous bone mass, cortical osteocyte and lacunar system, and porosity in sciatic...Effects of vitamin K2 on cortical and cancellous bone mass, cortical osteocyte and lacunar system, and porosity in sciatic...
... and porosity in sciatic neurectomized rats. Thirty-four female Sprague-Dawley retired breeder rats were randomized into three ... Effects of vitamin K2 on cortical and cancellous bone mass, cortical osteocyte and lacunar system, and porosity in sciatic ... NX also decreased osteocyte density and lacunar occupancy and increased porosity in cortical bone compared with age-matched ... and porosity in sciatic neurectomized rats. Thirty-four female Sprague-Dawley retired breeder rats were randomized into three ...
https://pubmed.ncbi.nlm.nih.gov/20556371/
Multiple Approaches to Quantifying the Effective Porosity of Lacustrine Shale Oil Reservoirs in Bohai Bay Basin, East ChinaMultiple Approaches to Quantifying the Effective Porosity of Lacustrine Shale Oil Reservoirs in Bohai Bay Basin, East China
... m grain sizes can be regarded as approaching the total porosity. The complicated relationship between WIP and NMR porosities ... In this study, porosities of sixteen lacustrine shale samples from the second Member of the Kongdian Formation (Ek,sub,2,/sub ... Results from the HP, WIP, and MIP methods for skeletal density, bulk density, and effective porosity with cubic samples were ... In summary, the WIP and HP methods are recommended for effective porosity measurement, whereas the NMR and MIP methods are ...
https://www.hindawi.com/journals/geofluids/2020/8856620/
Porosity and Measure Plastic Connector with 3D Scanning Video | Laser DesignPorosity and Measure Plastic Connector with 3D Scanning Video | Laser Design
Porosity and Measure Plastic Connector with 3D Scanning Video. December 15, 2015. by Andrew Larson ...
https://www.laserdesign.com/ct-scanning-porosity-measure-plastic-connector
Masters thesis on porosity distribution in clay-rich fault core | Nuclear waste disposal | University of HelsinkiMaster's thesis on porosity distribution in clay-rich fault core | Nuclear waste disposal | University of Helsinki
Masters thesis on porosity distribution in clay-rich fault core Ville Nenonen is working on his Masters thesis in our group ... The topic of Villes thesis is Porosity distribution in heterogeneous clay-rich fault core by image processing of C-14-PMMA ... autoradiographs and scanning electron microscopy.The topic of Villes thesis is Porosity distribution in heterogeneous clay- ...
https://www.helsinki.fi/en/news/mathematics-and-science/masters-thesis-on-porosity-distribution-in-clay-rich-fault-core
Nanoscale porosity analysis in geological materials | Université de LiègeNanoscale porosity analysis in geological materials | Université de Liège
Mingze Jiang, Jop Klaver, Joyce Schmatz & Janos L. Urai, «Nanoscale porosity analysis in geological materials», Acta ...
https://popups.ulg.ac.be/0351-580x/index.php?id=3555
Lambert » EPM-40 High Porosity MixLambert » EPM-40 High Porosity Mix
EPM-40 High Porosity Mix. Peat 0-20 mm Aggregate Free Lambert EPM-40 High Porosity Mix is a blend of coarse Canadian sphagnum ... The great amount of EcoPeatPlus+ enhances drainage and porosity. This media is recommended for use in large container, ... bogs and added to sphagnum peat moss to produce a superior professional substrate with an exceptional ratio of air porosity and ...
https://lambertpeatmoss.com/en/products/epm-40-high-porosity-mix/
A zero-one half law for porosity of measures - E-Prints ComplutenseA zero-one half law for porosity of measures - E-Prints Complutense
Doubling condition; Porosity of sets; Porosity of measures; Tangent measures.. Subjects:. Sciences , Mathematics , ... Mera Rivas, María Eugenia and Morán Cabré, Manuel (2000) A zero-one half law for porosity of measures. [ Documentos de Trabajo ... We prove that the upper porosity of any Radon probability measure is either 0 or 1/2 ...
https://eprints.ucm.es/id/eprint/27275/
A direct link between microstructure and acoustical macro-behavior of real double porosity foams - Archive ouverte HALA direct link between microstructure and acoustical macro-behavior of real double porosity foams - Archive ouverte HAL
... meso-porosity) and the inter-crystalline porosity of a gypsum matrix (micro-porosity). Transport properties of the micro- and ... The double porosity theory provides the visco-thermal coupling between the meso- and micro- scales [J. Acoust. Soc. Am. 114, ... In addition, the 3D-PUC used allows to account for two scales of porosity: the interconnected network of bubbles ( ... meso-porosity) and the inter-crystalline porosity of a gypsum matrix (micro-porosity). Transport properties of the micro- and ...
https://hal.archives-ouvertes.fr/hal-00817040
porosity in steel.
I welded some 1/4 wall 2x2 steel tubing and noticed some porosity . 195 amps ,3/32/ rod 702s2 1/8 thor electrode. 7 lpm ... porosity in steel. I welded some 1/4 wall 2x2 steel tubing and noticed some porosity . 195 amps ,3/32/ rod 702s2 1/8 thor ... Things that cause porosity.... oil or grease. wind. too much or too little torch gas. bad gas. extending the electrode too far ...
https://www.weldingtipsandtricks.com/porosity-in-steel.html
British Library EThOS: Titanium alloy lattices with regular and graded porosity for dental implant applicationsBritish Library EThOS: Titanium alloy lattices with regular and graded porosity for dental implant applications
Graded porosity may provide large pores for bone ingrowth on the periphery of an implant and a denser core to sustain ... However, the optimal porosity and structure for the mechanical and biological performance of load-bearing implants remains ... Therefore, this thesis aimed to develop a range of lattices from the titanium alloy Ti-6Al-4V of regular and graded porosity ... Our results confirmed that Ti-6Al-4V lattices were duplicated from the CAD models and characterised by interconnected porosity ...
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.778758
Emulsion soft templating of carbide-derived carbon nanospheres with controllable porosity for capacitive electrochemical energy...Emulsion soft templating of carbide-derived carbon nanospheres with controllable porosity for capacitive electrochemical energy...
Emulsion soft templating of carbide-derived carbon nanospheres with controllable porosity for capacitive electrochemical energy ... Emulsion soft templating of carbide-derived carbon nanospheres with controllable porosity for capacitive electrochemical energy ...
https://pubs.rsc.org/en/Content/ArticleLanding/2015/TA/C5TA03730A
STEVEN HOLL ARCHITECTS - Steven Holl Architects To Build Sliced Porosity Block in Chengdu, ChinaSTEVEN HOLL ARCHITECTS - Steven Holl Architects To Build Sliced Porosity Block in Chengdu, China
The Sliced Porosity Block will be located just south of the intersection of the First Ring Road and Ren Min Nan Road. Its sun ... The Sliced Porosity Block is the third large urban development SHA is designing in China and led by Steven Holl and Li Hu. ... The Sliced Porosity Block is heated and cooled geo-thermally and the large plaza ponds harvest recycled rainwater while the ... Steven Holl Architects To Build Sliced Porosity Block in Chengdu, China. , February 25, 2008 ...
https://www.stevenholl.com/steven-holl-architects-to-build-sliced-porosity-block-in-chengdu-china/
Solid Density of Pharmaceuticals: Assessing Flow Properties of Powders and Open Porosity of Tablets :: Anton-Paar.comSolid Density of Pharmaceuticals: Assessing Flow Properties of Powders and Open Porosity of Tablets :: Anton-Paar.com
... more porous tablets will dissolve faster than tablets with less porosity. Some porosity is also important to prevent excipient ... Knowing the open porosity of a tablet is critical to understanding many different tablet properties such as tablet strength, ... Geometric and skeletal densities enable the calculation of open porosity of tablets. And skeletal density is related to the ... Solid Density of Pharmaceuticals: Assessing Flow Properties of Powders and Open Porosity of Tablets. Flow properties of ...
https://www.anton-paar.com/corp-en/services-support/document-finder/application-reports/solid-density-of-pharmaceuticals-assessing-flow-properties-of-powders-and-open-porosity-of-tablets/
1904.01105] Poly(ionic liquid)-derived N-doped carbons with hierarchical porosity for lithium and sodium ion batteries
Title:Poly(ionic liquid)-derived N-doped carbons with hierarchical porosity for lithium and sodium ion batteries. Authors:Walid ...
https://aps.arxiv.org/abs/1904.01105?context=cond-mat
Stereology- and Morphology-Based Pore Structure Descriptors of Enhanced Porosity (Pervious) ConcretesStereology- and Morphology-Based Pore Structure Descriptors of Enhanced Porosity (Pervious) Concretes
... such as the porosity, pore sizes and their distribution, connectivity, and specific surface area, play a dominant role in the ... The pore structure features, such as the porosity, pore sizes and their distribution, connectivity, and specific surface area, ... Single-sized aggregate EPC mixtures showed lower porosity than blended aggregate mixtures. Higher proportions of smaller sized ... Title: Stereology- and Morphology-Based Pore Structure Descriptors of Enhanced Porosity (Pervious) Concretes ...
https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&i=51663143
Porcelain Tile and Porosity - Ceramic Tile Advice Forums - John Bridge Ceramic TilePorcelain Tile and Porosity - Ceramic Tile Advice Forums - John Bridge Ceramic Tile
Heres an article on porosity of porcelain tiles __________________. James Upton How-to mix a small batch of thinset perfectly ... Sealant Porosity, Longevity, NSF Rating chefwong. Cleaning, Restoration and Sealing. 5. 12-04-2011 07:02 PM. ...
https://www.johnbridge.com/vbulletin/showthread.php?t=118286
What Is Soil Porosity: How To Get Porous Soil In The GardenWhat Is Soil Porosity: How To Get Porous Soil In The Garden
So what makes soil porous? Click here for soil porosity information. ... So what makes soil porous? Click here for soil porosity information.. Soil Porosity Information. Soil porosity, or soil pore ... Soil porosity is affected by soil particle texture, soil structure, soil compaction, and quantity of organic material. Soil ... For example, silt and clay soils have a finer texture and sub-micro porosity, therefore, they are able to retain more water ...
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-porosity-information.htm
Shallow water equations with depth-dependent anisotropic porosity for subgrid-scale topographyShallow water equations with depth-dependent anisotropic porosity for subgrid-scale topography
The porosity is divided into volumetric and areal porosities, which are assigned to the cell volume and the cell edges, ... The porosity terms are variable in time in dependence of the water elevation in the cell and the cumulative distribution ... The main novelty of the equations is the formulation of the porosities which enables full inundation of the cell. The ... The aim is to run simulations on coarser grids while maintaining an acceptable accuracy through the introduction of porosity ...
https://depositonce.tu-berlin.de/items/2cb8e18f-de6f-4349-91f9-ef457fa3efbe
What happens to the diffusive properties and the porosity when cement and clay come in contact? | NES | Paul Scherrer Institut ...What happens to the diffusive properties and the porosity when cement and clay come in contact? | NES | Paul Scherrer Institut ...
For HTO the relation between the De and the porosity in the clay part can be described using Archies law. • No complete ... clogging of the porosity was observed after 6 years interaction. ... Porosities for the skin regions were derived from the data of ... Whether a complete porosity clogging will take place or some fraction of connected pore space will persist in the sample over ... HTO and 36Cl- were used as tracers to study the evolution of both the total and the anion accessible porosity. After six years ...
https://www.psi.ch/en/nes/scientific-highlights/deep-geological-disposal-of-radioactive-waste-in-clay-rocks
Total porosityOpen porositySoil porosityMoisturize low porosity hairPermeability valuesSliced Porosity BlockMoistureReservoirsLower porosityCorticalShaleDensityInterconnected pore spaceHair'sCuticleMeasurementLess tightly boundPorousSubstrateThesisSoilsTextureCementCarbonateSkipHighMeasurementsPore structurePoresGypsumFloatsTightlyDisplacementSamplesRootsMechanicalRetainOrganicTreatmentsIngrowthCorrelationWaterCoarseClayRatioAffectsProcessesHairCeramicFrameworkPercentageStudy0.05CuticlesSurfaceMineralModification
Total porosity4
  • Furthermore, the HP porosity of granular samples with 500-841 μ m grain sizes can be regarded as approaching the total porosity. (hindawi.com)
  • The amount of air required in the substrate is going to depend mostly on its total porosity. (hortidaily.com)
  • Total porosity is the percentage of the total volume of substrate that it is not occupied by solids and is composed of both air and water. (hortidaily.com)
  • The results indicated that the lower relation between the open porosity and the total porosity, the lower the corrosion rate. (conicet.gov.ar)
Open porosity4
  • Flow properties of pharmaceutical powders, as well as the open porosity of pharmaceutical tablets, are important material characteristics that can be assessed from solid density measurements. (anton-paar.com)
  • Geometric and skeletal densities enable the calculation of open porosity of tablets. (anton-paar.com)
  • Knowing the open porosity of a tablet is critical to understanding many different tablet properties such as tablet strength, shelf life, bioavailability and dissolution within the body. (anton-paar.com)
  • Aerogel technology provides high added-value lightweight materials with outstanding surface area and open porosity, susceptible of being used in a broad range of applications. (empa.ch)
Soil porosity6
  • Click here for soil porosity information. (gardeningknowhow.com)
  • Soil porosity, or soil pore space, are the small voids between particles of soil. (gardeningknowhow.com)
  • Soil porosity usually falls into one of three categories: micro-pores, macro-pores, or bio-pores. (gardeningknowhow.com)
  • Soil porosity is affected by soil particle texture, soil structure, soil compaction, and quantity of organic material. (gardeningknowhow.com)
  • Usually, this is as simple as thoroughly mixing in organic material such as peat moss or garden gypsum to increase soil porosity. (gardeningknowhow.com)
  • Soils of Durganagar reported higher soil porosity at all the depths studied. (who.int)
Moisturize low porosity hair1
Permeability values3
  • The results suggest that the gob porosity and permeability values can be predicted by this approach and the presented models are capable to produce values close to values documented by other researchers. (cdc.gov)
  • An investigation has been made of the relations among porosity, permeability, and texture of artificially mixed and packed sand, to determine the approximate porosity and permeability values to be expected for unconsolidated sand of eight grain-size subclasses and six sorting groups. (geoscienceworld.org)
  • The rock plug samples measured in this work have porosity and permeability values ranging from 8% to 30% and 0.4 mD to above 5D, respectively. (figshare.com)
Sliced Porosity Block3
  • The 'Sliced Porosity Block' will be located just south of the intersection of the First Ring Road and Ren Min Nan Road. (stevenholl.com)
  • The 'Sliced Porosity Block' is heated and cooled geo-thermally and the large plaza ponds harvest recycled rainwater while the natural grasses and lily pads create a natural cooling effect. (stevenholl.com)
  • The 'Sliced Porosity Block' is the third large urban development SHA is designing in China and led by Steven Holl and Li Hu. (stevenholl.com)
Moisture15
  • Essentially, hair porosity is about your hair's ability to absorb and retain moisture. (healthline.com)
  • The porosity of your hair affects how well oils and moisture pass in and out of the outermost layer of your hair, known as the cuticle. (healthline.com)
  • Whether due to genetics or hair damage, high porosity hair allows moisture to be absorbed into the hair shaft easily, yet it isn't able to retain moisture for long. (healthline.com)
  • Aug 20, 2019 - Having low porosity hair is a blessing and a curse.Since the hair cuticles are so tight, it's hard to get moisture in, but once it's in it's easy to retain. (laborunionreport.com)
  • It can be a pain trying to get moisture into low porosity hair. (laborunionreport.com)
  • The Shea Moisture Low Porosity line is pretty darn awesome when it comes down to the business of low porosity hair care and exploring the world of protein-free hair products. (laborunionreport.com)
  • Normal porosity hair: Normal porosity hair allows a right amount of moisture to penetrate the hair. (laborunionreport.com)
  • Porosity, in general, is the hair's ability to absorb or retain moisture. (laborunionreport.com)
  • Hair Porosity measures the hair's capacity to absorb and retain moisture, and is directly linked to the quality of the hair," says Melissa Hughe, National Technical Head at Schwarzkopf Professional India. (idiva.com)
  • The complicated relationship between WIP and NMR porosities may result from the heat-induced volatilization of moisture in pores during NMR tests, and countercurrent imbibition of water replacing the residual hydrocarbons during the saturation process for sample preparation in both tests. (hindawi.com)
  • Not straying far from its roots, Hy-porosity is bio-actively fortified with earthworm castings, moisture and nutrient retention from smart coarse Canadian Sphagnum peat moss, and organically enriched with forest humus. (blackgold.bz)
  • Remember: High porosity hair has trouble sealing in moisture, while low porosity hair doesn't let it in at all. (carolsdaughter.com)
  • Hair porosity determines how well your natural hair can take in and retain moisture. (rockthetrend.com)
  • If you have low porosity hair, moisture runs away from you. (rockthetrend.com)
  • Hair porosity is a measure of how well your hair is able to absorb and hold moisture. (beautycluboutlet.com)
Reservoirs2
  • For either extraction approaches, a porosity measurement is important because it not only significantly affects the accuracy of resource estimates of reservoirs, but also determines favorable target areas, in conjunction with the hydrocarbon saturation and brittleness of shale reservoirs [ 4 ]. (hindawi.com)
  • Direct assessment of porosity and permeability in unconventional reservoirs such as shales and tight gas sands using imaging technologies is a challenge because of small pore throats, a broad pore size range, and sample heterogeneities with respect to mineralogy and grain size. (onepetro.org)
Lower porosity2
  • While very similar skeletal densities were found for all three methods, a lower bulk density, and therefore lower porosity, from the MIP approach can be attributed to the experimental conditions (e.g., vacuum efficiency, applied pressure, wettability of water/helium vs. mercury) and the probable presence of pores with diameters larger than 50 μ m not measurable by MIP. (hindawi.com)
  • Single-sized aggregate EPC mixtures showed lower porosity than blended aggregate mixtures. (concrete.org)
Cortical6
  • The purpose of the present study was to examine the effects of vitamin K2 on cortical and cancellous bone mass, cortical osteocyte and lacunar system, and porosity in sciatic neurectomized rats. (nih.gov)
  • At the end of the 8-week experiment, bone histomorphometric analysis was performed on cortical and cancellous bone of the tibial diaphysis and proximal metaphysis, respectively, and osteocyte lacunar system and porosity were evaluated on cortical bone of the tibial diaphysis. (nih.gov)
  • NX also decreased osteocyte density and lacunar occupancy and increased porosity in cortical bone compared with age-matched controls. (nih.gov)
  • The present study showed the efficacy of vitamin K2 for cancellous bone mass and cortical lacunar occupancy by viable osteocytes and porosity in sciatic NX rats. (nih.gov)
  • [ 35 ] Alendronate treatment decreased cortical porosity and increased uniformity of mineralization compared with placebo. (medscape.com)
  • Tibial cortical porosity was significantly greater - signaling deterioration in microarchitecture - in athletes, compared with control subjects ( P = .003), according to quantitative computed tomography measurements. (medscape.com)
Shale3
  • In this study, porosities of sixteen lacustrine shale samples from the second Member of the Kongdian Formation (Ek 2 ) in the Cangdong Sag, Bohai Bay Basin were measured and compared using multiple methods and sample sizes to compare and contrast the effective porosity results. (hindawi.com)
  • The estimation of porosity, water saturation, kerogen concentration, and mineral composition is an integral part of unconventional shale reservoir formation evaluation. (utexas.edu)
  • Shale has a porosity around a million times less than sand on a beach. (ecosmagazine.com)
Density5
  • Results from the HP, WIP, and MIP methods for skeletal density, bulk density, and effective porosity with cubic samples were compared. (hindawi.com)
  • For both powder flow information and tablet porosity, measurement of skeletal density using gas pycnometry enables you to assess these important pharmaceutical properties. (anton-paar.com)
  • Parts with closed locally adjusted porosity of ∼6 \% achieved through gaseous pores instead of lack of fusion defects or lattice structures were built by PBF-LB. Parameter variation and evaluation of relative density, pore size and sphericity was done in accordance with the design of experiments approach. (lzh.de)
  • ALUTAB is used as a raw material for investment casting thanks to its high purity, high density & low porosity. (imerys.com)
  • Further, porosity reduces metal density and Young module, which causes bone resorption, leading to implant failure, phenomenon known as stress shielding. (conicet.gov.ar)
Interconnected pore space1
  • An effective porosity is defined as the ratio of volume of interconnected pore space to total volume of a porous sample. (hindawi.com)
Hair's2
  • You may not know it, but the truth on why products will or won't work for you depends largely on your hair's porosity level. (laborunionreport.com)
  • When redesigning your hair care routine according to your hair's porosity, the steps after deep conditioning are the ones who might suffer the most modifications. (laborunionreport.com)
Cuticle1
  • While "Low Porosity" hair has a closed off cuticle layer which makes it difficult for water to enter and be absorbed. (laborunionreport.com)
Measurement4
  • The 48 artificially mixed and wet-packed experimental sands selected for porosity measurement also were used to determine permeability. (geoscienceworld.org)
  • In summary, the WIP and HP methods are recommended for effective porosity measurement, whereas the NMR and MIP methods are invaluable for the measurement of pore-size distribution, with additional information on the effective porosity. (hindawi.com)
  • An ultrasonic nondestructive measurement technique has been developed to measure porosity in plasma-sprayed alumina coatings. (elsevier.com)
  • Because porosity can affect a wide range of performance attributes in vessels, its measurement has become an important component of ceramic technological studies. (unlv.edu)
Less tightly bound1
  • 2. Medium porosity found in hair with less tightly bound cuticles. (idiva.com)
Porous5
  • The approach allows the calculation of porosity and permeability from the size distribution of broken rock material in the gob, which can be determined from image analyzes of gob material using the theories on a completely fragmented porous medium. (cdc.gov)
  • The virtual fragmented fractal porous medium so generated is exposed to various uniaxial stresses to simulate gob compaction and porosity and permeability changes during this process. (cdc.gov)
  • Network Approaches to Highly Porous Materials Metal-organic frameworks (MOFs), in which inorganic centers are bridged by organic linkers, can achieve very high porosity for gas absorption. (semanticscholar.org)
  • For example, if we look at tablets of the same composition, more porous tablets will dissolve faster than tablets with less porosity. (anton-paar.com)
  • This work presents a fractal porous medium model to predict gob porosity and permeability for controlling methane flow and to predict air leakage into the gob. (cdc.gov)
Substrate2
  • ECOPEATPLUS+ is a natural wood fiber, collected from our peat bogs and added to sphagnum peat moss to produce a superior professional substrate with an exceptional ratio of air porosity and water holding capacity. (lambertpeatmoss.com)
  • Air porosity is the percentage of air contained in a fixed volume of substrate after the substrate is saturated with water and the free water has drained. (hortidaily.com)
Thesis3
  • The topic of Ville's thesis is Porosity distribution in heterogeneous clay-rich fault core by image processing of C-14-PMMA autoradiographs and scanning electron microscopy.The topic of Ville's thesis is Porosity distribution in heterogeneous clay-rich fault core by image processing of C-14-PMMA autoradiographs and scanning electron microscopy. (helsinki.fi)
  • Therefore, this thesis aimed to develop a range of lattices from the titanium alloy Ti-6Al-4V of regular and graded porosity via selective laser melting. (bl.uk)
  • This thesis tested the null hypothesis that manubrial porosity was not associated with respiratory disease or pulmonary tuberculosis. (uwo.ca)
Soils3
  • For example, silt and clay soils have a finer texture and sub-micro porosity, therefore, they are able to retain more water than coarse, sandy soils , which have larger macro-pores. (gardeningknowhow.com)
  • Now, the question you are probably asking is, "Why would I want to use Black Gold Hy-porosity verses the other Black Gold potting soils? (blackgold.bz)
  • Composted pine bark lightens soil texture and improves porosity, making it a good choice when amending clay soils. (gardenguides.com)
Texture1
  • The key to beautiful hair is knowing your hair type, texture, porosity, and sensitivities and adopting a regimen and products that allow your hair to flourish. (laborunionreport.com)
Cement6
  • The porosity and pore size distributions of cement pastes of water/cement ratios of 0.35 and 0.55 were measured by high pressure (50,000 psi) mercury porosimetry. (astm.org)
  • The variation of mercury porosity with maturity was found to correlate well with generally held concepts of the hydration of cement paste. (astm.org)
  • What happens to the diffusive properties and the porosity when cement and clay come in contact? (psi.ch)
  • The adjusted porosity/cement index has shown to be a useful tool when a rational dosage methodology for soil-cement purposes is sought. (ufrgs.br)
  • It inputs the role of the compactness, through the molding porosity value (η), and the amount of cement, via the volumetric cement content (Civ), into a single dimensionless parameter. (ufrgs.br)
  • Present research intends to address this gap by setting seven specific η/(Civ)0.28 values (i.e. 45, 40, 30, 35, 25, 22.5 and 20) for compacted Botucatu residual soil-cement mixtures and establishing, at least, three distinct dosages within each chosen η/(Civ)0.28 by varying the porosity and the cement content. (ufrgs.br)
Carbonate3
  • The Classification of Carbonate Porosity. (elsevier.com)
  • The Nature and Classification of Carbonate Porosity. (elsevier.com)
  • The Lucia rock fabric/petrophysical carbonate porosity classification. (elsevier.com)
Skip1
  • If we skip this step our porosity will be too uniform, losing realism. (zbrushcentral.com)
High26
  • What causes low or high hair porosity? (healthline.com)
  • If the strand quickly sinks to the bottom of the glass, you likely have high porosity hair. (healthline.com)
  • Low porosity hair will feel smooth, whereas high porosity hair will feel rough and bumpy because the cuticles are open. (healthline.com)
  • 3. Of all the three hair porosity types-low, normal, and high-low porosity hair can be such a nuisance sometimes. (laborunionreport.com)
  • If you have high porosity hair, head over to Madisen's post: 6 WAYS TO CARE FOR HIGH POROSITY HAIR. (laborunionreport.com)
  • Now, we're doing the name for our high porosity naturals. (laborunionreport.com)
  • However, for low porosity gals you should only use henna once every 4-6 weeks (for high porosity girls, we only recommend twice a month max) because it can be too strengthening and lead to breakage and dryness. (laborunionreport.com)
  • Hair with low porosity is more resistant to chemical processing, such as perming or coloring than hair with normal or high porosity. (laborunionreport.com)
  • 3. High porosity wherein the cuticles are widely spaced and may not be intact. (idiva.com)
  • While having medium and high porosity hair is a good thing, low porosity isn't. (idiva.com)
  • 32 angstroms) is reported, as evidenced by their permanent porosity and high thermal stability (up to 300°C). (semanticscholar.org)
  • Lambert EPM-40 High Porosity Mix is a blend of coarse Canadian sphagnum peat moss and EcoPeatPlus+. (lambertpeatmoss.com)
  • Mechanical tests revealed good strength properties comparable to bone tissue, but a dense core was required to maintain strength in the high porosity structures. (bl.uk)
  • All experiments were performed on samples consisting of a hardened high porosity OPC paste and Na-montmorillonite. (psi.ch)
  • High porosity hair is notoriously hard to tame. (youprobablyneedahaircut.com)
  • Fortunately for you, we're hair experts and have scoured high and low to bring you what we consider to be some of the best hair creams for high porosity hair. (youprobablyneedahaircut.com)
  • What's the Best Cream for High Porosity Hair? (youprobablyneedahaircut.com)
  • High porosity hair can be a pain to manage. (youprobablyneedahaircut.com)
  • If you're dealing with frizzy hair, split ends, or curls you just can't tame, finding a hair cream that works for high porosity hair is critical. (youprobablyneedahaircut.com)
  • Is Rice Water Good for High Porosity Hair? (youprobablyneedahaircut.com)
  • High porosity hair has a few key characteristics. (youprobablyneedahaircut.com)
  • You want a cream for high porosity hair that moisturizes and makes your hair look great. (youprobablyneedahaircut.com)
  • We've reviewed tons of hair creams for high porosity hair and narrowed it down to seven creams we think will do the job like no other. (youprobablyneedahaircut.com)
  • Cantu Shea Butter Coconut Curling Cream is a great budget option for high porosity hair cream. (youprobablyneedahaircut.com)
  • Since this hair routine is designed to moisturize natural hair , it's a great match for high porosity hair, which tends to dry fast and looks and feels dry. (carolsdaughter.com)
  • The specimens were scanned before and after obturation with a high-resolution micro-computed tomography scanner, and the porosity of the apical plugs was assessed. (bvsalud.org)
Measurements3
  • Despite its importance, the gob is typically inaccessible for performing direct measurements of porosity and permeability. (cdc.gov)
  • These extremely accurate volume measurements are required for the pharmaceutical industry and can be correlated to flow and porosity. (anton-paar.com)
  • With automatic sandblaster and coating equipment, we have a specialised laboratory to assure process quality control with porosity measurements and tests to analyse bond, micro hardness and metallography levels. (hydrocarbons-technology.com)
Pore structure1
  • The pore structure features, such as the porosity, pore sizes and their distribution, connectivity, and specific surface area, play a dominant role in the structural and functional performance of macroporous materials like enhanced porosity concrete (EPC) (or pervious concrete). (concrete.org)
Pores4
  • Low porosity hair: this types of hair has tightly closed pores. (laborunionreport.com)
  • Graded porosity may provide large pores for bone ingrowth on the periphery of an implant and a denser core to sustain mechanical loading. (bl.uk)
  • Considerably higher percentages of open and closed pores were observed in the MF and MF-UA groups, with the highest porosity being in the MF-UA group (p (bvsalud.org)
  • However, pristine hydrogels contain mostly ultra-micro pores and lack air-filled porosity for root zone aeration. (astrobiology.com)
Gypsum1
  • In addition, the 3D-PUC used allows to account for two scales of porosity: the interconnected network of bubbles (meso-porosity) and the inter-crystalline porosity of a gypsum matrix (micro-porosity). (archives-ouvertes.fr)
Floats4
  • If the strand floats at the top before sinking, you likely have low porosity hair. (healthline.com)
  • If the strand floats somewhere in the middle of the glass, you probably have medium or normal porosity hair. (healthline.com)
  • If the hair floats… You have low porosity hair: The cuticles are tightly closed. (laborunionreport.com)
  • and if it floats at the top, you have low porosity hair. (idiva.com)
Tightly1
  • With low porosity hair, the cuticles are tightly packed and very close together. (healthline.com)
Displacement1
  • The results of this model are compared the relation of displacement, stress, strain and porosity of scaffold and cell in different state and several time. (ceserp.com)
Samples5
  • Porosity data for "wet-packed" sand samples remain about the same for changes in grain size of a given sorting, but decrease from an average of 42.4 percent for extremely well-sorted sand to 27.9 percent for very poorly sorted sand. (geoscienceworld.org)
  • These experimental data agree within 5 porosity percent with framework porosity values obtained for natural packing of 25 Holocene barrier-Island sand samples of a limited size-sorting range, and appear to be representative of minimum porosities expected for natural packing of most unconsolidated, clay-free sand. (geoscienceworld.org)
  • Grain-size-sorting comparators, representing photomicrographs of thin sections of the porosity and permeability test samples, are especially useful in estimating original textural parameters form thin sections of severely compacted and silica-cemented sandstones. (geoscienceworld.org)
  • Using additional information on the extension of porosity changes from a neutron imaging study performed in parallel on the same samples (fig. 3), the diffusive properties of each component of the interface, or of a clay zone with reduced porosity could be estimated. (psi.ch)
  • Samples with varying porosity, obtained through innovative fabrication techniques, were used to generate a calibration curve. (elsevier.com)
Roots2
  • The higher the air porosity, the more oxygen the roots can acquire. (hortidaily.com)
  • The present study evaluated the effect of ultrasonic agitation on the porosity distribution of BioRoot RCS/single gutta-percha cone (BR/SC) and MTA Flow (MF) root canals fillings used as apical plugs in moderately curved and apically perforated roots. (bvsalud.org)
Mechanical2
  • However, the optimal porosity and structure for the mechanical and biological performance of load-bearing implants remains undefined. (bl.uk)
  • This is fairly consistent with the common use of a "connected porosity" in the models dealing with mechanical features of ASR to estimate the volume of gel lost in the porosity. (archives-ouvertes.fr)
Retain1
  • The researchers report that the paper's porosity and 3D cellulose fiber network offer a highly protective environment for the cells to retain their viability and content during preservation. (eurekalert.org)
Organic4
  • The system that I present is part of my current pipeline with ZBrush, streamlines the porosity detailing process and accentuates the organic aspect of the skin, being also adaptable to "non-human" skins. (zbrushcentral.com)
  • Black Gold® Hy-porosity Natural and Organic Potting Soil was developed, following customer feedback, by Sun Gro's team of horticulturalists to be a marriage of the desirable traits of Sunshine Mix #4 and Black Gold Natural & Organic Potting Soil . (blackgold.bz)
  • If you are growing a consumable crop or you want to use something that is organic, Hy-porosity is pending OMRI Listing . (blackgold.bz)
  • Designed to work well both in indoor and outdoor containers, we know you will find gardening success under growing conditions that might have been difficult in the past when you use Black Gold® Hy-porosity Natural & Organic potting soil. (blackgold.bz)
Treatments3
  • In addition to hair treatments, too much ultraviolet exposure can also increase the porosity of your hair. (healthline.com)
  • Hydrating deep conditioning treatments work well on low porosity hair… The best low porosity natural hair regimen to upgrade your curl game! (laborunionreport.com)
  • The porosity of your hair plays a huge role in the hair treatments you use. (rockthetrend.com)
Ingrowth1
  • The main objective of the interconnected porosity is to improve the osteoconductive of metal matrix by ingrowth of bone. (conicet.gov.ar)
Correlation2
  • Stereological methods based on area and line fractions and a morphological method based on two-point correlation provided similar porosity values for the mixtures studied. (concrete.org)
  • For chloride large uncertainties regarding the accessible porosity do not allow a precise correlation. (psi.ch)
Water11
  • One of the easiest ways to test your hair porosity is by using a glass of water. (healthline.com)
  • When conditioning low porosity hair, apply conditioner to hair that is already wet, then work it into the hair in sections, while continuing to add water. (laborunionreport.com)
  • A low porosity hair routine should consist of water-soluble products to reduce build-up. (laborunionreport.com)
  • The easiest way to test for hair porosity is to take a glass of water and drop a strand of your hair into it (preferably when your hair is clean). (idiva.com)
  • This paper derives a novel formulation of the depth-averaged shallow water equations with anisotropic porosity for computational efficiency reasons. (tu-berlin.de)
  • The porosity terms are variable in time in dependence of the water elevation in the cell and the cumulative distribution function of the unresolved bottom elevation. (tu-berlin.de)
  • The flux of HTO did, however, not approach zero, which means that connected porosity for diffusive transport of water is still available. (psi.ch)
  • Porosity, water saturation, and kerogen content determine the amount of hydrocarbon-in-place while mineral composition affects hydro-fracture generation and propagation. (utexas.edu)
  • The field examples confirm the accuracy and reliability of nonlinear inversion to estimate porosity, water saturation, kerogen concentration, and mineral composition. (utexas.edu)
  • If you want your soil to dry out more quickly, or are growing a water or salt sensitive plant, or are you liquid feed your plants, Hy-porosity is the one you should choose. (blackgold.bz)
  • Increased air-filled porosity accelerated the water transport and loss of hydrogel but maintained favorable water potential levels for plant extraction. (astrobiology.com)
Coarse1
Clay1
  • For HTO the relation between the evolution of De and of the porosity in the clay part can be well described with Archie's empirical law (fig. 4). (psi.ch)
Ratio1
  • Using the odds ratio, 95% confidence interval, and chi-square tests, significant associations exist between manubrial porosity, adolescence, and sternal body shape at the p = 0.05 confidence level, but associations do not exist with disease. (uwo.ca)
Affects1
  • This article will take a closer look at what affects the porosity of your hair, how you can figure out the type of porosity you have, and, depending on the hair porosity you have, how best to treat your hair. (healthline.com)
Processes1
  • Heat damage and other chemical processes can cause normal porosity hair to change over time. (healthline.com)
Hair36
  • Hair Porosity: What Is It and What Type Do You Have? (healthline.com)
  • You may have heard the term "hair porosity" and wondered what it means. (healthline.com)
  • What does hair porosity mean? (healthline.com)
  • To understand the concept of hair porosity, it helps to know a bit about the structure of your hair, which consists of three layers. (healthline.com)
  • So, if low porosity hair runs in your family, there's a good chance you'll have low porosity hair, too. (healthline.com)
  • Is there an easy way to test your hair porosity? (healthline.com)
  • You can also test your porosity level by running a finger down a strand of your hair. (healthline.com)
  • With medium or normal porosity hair, the cuticles aren't too close together, but aren't too open either. (healthline.com)
  • A short while ago, we discussed how to achieve the ultimate low porosity hair routine. (laborunionreport.com)
  • The Third way to grow low porosity hair is through Clarifying your Hair! (laborunionreport.com)
  • In the simplest terms, the fibers of low porosity hair are tight-knit. (laborunionreport.com)
  • Low porosity hair can get weighed down easily with most products, so consider using "film-forming humectants" for moisturizers. (laborunionreport.com)
  • Tips for dealing with Low Porosity Hair. (laborunionreport.com)
  • Those with low porosity hair may find their hair is difficult to moisturize. (laborunionreport.com)
  • For this reason, I had to rebuild my daily regimen to include only the best low porosity hair products. (laborunionreport.com)
  • Using heat throughout every process will help your dry low porosity hair become moisturized and full of life! (laborunionreport.com)
  • Natural Hair Types Natural Hair Care Tips Natural Hair Regimen Natural Hair Growth Natural Hair Journey Natural Hair Care Products 4c Hair Growth Fine Natural Hair Low Porosity Hair Products. (laborunionreport.com)
  • The strand of hair that flows midway in the glass is classified as average porosity. (laborunionreport.com)
  • In short, low porosity hair does not need protein. (laborunionreport.com)
  • Hair that is dry and crispy despite attempts to deep condition can sometimes be protein sensitive, especially if it is low porosity. (laborunionreport.com)
  • Low Porosity Hair Regimen It's a really simple process. (laborunionreport.com)
  • The Low Porosity Hair Regimen (at a Glance) 1. (laborunionreport.com)
  • It's a good idea to have a low porosity hair regimen in place if you know you have low porosity hair so that you make sure your hair is always at its best. (laborunionreport.com)
  • Your hair takes a long time … Roux Porosity Control is a low porosity hair nightmare. (laborunionreport.com)
  • But with low porosity hair, you should use only lighter oils such as almond oil, babassu oil, or grapeseed oil. (laborunionreport.com)
  • Taking care of low porosity hair is never enough. (laborunionreport.com)
  • Salon Bhaiya Mentioned Hair Porosity & You're Clueless? (idiva.com)
  • Have you ever gone to a salon and the technician has spoken about the porosity of your hair but you didn't know what it meant? (idiva.com)
  • What is hair porosity? (idiva.com)
  • If your hair is low porosity, it means that it isn't absorbing nutrients from products. (idiva.com)
  • What Is Hair Porosity And Why It Matters? (rootzhair.com)
  • Your hair porosity actually plays an important part in whether the LOC method is right for you. (carolsdaughter.com)
  • Still, this doesn't mean low porosity hair types can't participate-they just may need to switch up their technique a little to allow the products to absorb and work their magic. (carolsdaughter.com)
  • Pick an oil based on your hair porosity. (carolsdaughter.com)
  • Thicker textures like 4C hair can likely benefit from both, while low porosity hair needs a lighter oil for it to absorb. (carolsdaughter.com)
  • Best Oils For Low Porosity Hair - What Is Your Pick? (rockthetrend.com)
Ceramic2
  • Porosity is an important factor in plasma-sprayed coatings, especially ceramic coatings. (elsevier.com)
  • To measure ceramic porosity, archaeologists have borrowed well-established methods from the material sciences. (unlv.edu)
Framework1
Percentage1
  • The porosity percentage progressively decreased with an increase in depth. (who.int)
Study3
  • HTO and 36Cl - were used as tracers to study the evolution of both the total and the anion accessible porosity. (psi.ch)
  • This study sought to be as comprehensive as possible, and thus tested several variables to identify any significant associations with manubrial porosity. (uwo.ca)
  • This study aimed at evaluating the surface roughness and porosity of an acrylic resin used for provisional crowns. (bvsalud.org)
0.051
  • 0.05 mm/mm, respectively) underline the advantages of adjusted porosity for the application in functionally graded materials and lightweight applications. (lzh.de)
Cuticles1
  • 1. Low porosity characterized by closely packed cuticles. (idiva.com)
Surface2
  • Once we have the surface of the skin full of this porosity in negative, we will use the Smooth Peaks Brush to soften and give irregularity. (zbrushcentral.com)
  • Also allow for surface irregularities and porosity of wood surface to be finished. (woodweb.com)
Mineral1
  • Mineralogy of ancient limestones: the concept of early progressive mineral stabilization and porosity evolution. (elsevier.com)
Modification1
  • Diagenetic Environments of Porosity Modification and Tools for their Recognition in the Geologic Record61. (elsevier.com)
What Is Hair Porosity And Why It Matters?
What Is Hair Porosity And Why It Matters? (rootzhair.com)
Adstefan Casting Simulation Software | Casting Defects | Shrinkage Porosity
Adstefan Casting Simulation Software | Casting Defects | Shrinkage Porosity (castingsimulation.in)
Moisture expansion as a deterioration factor for sandstone used in buildings | SpringerLink
Moisture expansion as a deterioration factor for sandstone used in buildings | SpringerLink (link.springer.com)
Low cost, high performance ultrafiltration membranes from glass fiber-PTFE-graphene composites | Scientific Reports
Low cost, high performance ultrafiltration membranes from glass fiber-PTFE-graphene composites | Scientific Reports (nature.com)
CDC - Mining - Prediction of Porosity and Permeability of Caved Zone - NIOSH
CDC - Mining - Prediction of Porosity and Permeability of Caved Zone - NIOSH (cdc.gov)
Flux melting of metal-organic frameworks - Chemical Science (RSC Publishing) DOI:10.1039/C8SC04044C
Flux melting of metal-organic frameworks - Chemical Science (RSC Publishing) DOI:10.1039/C8SC04044C (pubs.rsc.org)
Liquid phase blending of metal-organic frameworks | Nature Communications
Liquid phase blending of metal-organic frameworks | Nature Communications (nature.com)
Acerbis Gabelstütze Pilaster grau3 AC-0013758-072 Werkzeuge | MotoStorm
Acerbis Gabelstütze Pilaster grau3 AC-0013758-072 Werkzeuge | MotoStorm (motostorm.it)
Low Porosity Protein Sensitive Hair Butter Balm | Bathing Spirits
Low Porosity Protein Sensitive Hair Butter Balm | Bathing Spirits (bathingspirits.com)
Space Between - The Brooklyn Rail
Space Between - The Brooklyn Rail (brooklynrail.org)
Alexi Worth and Jan van Eyck s Crucifixion and Last Judgment (ca. 1435 40) - The Brooklyn Rail
Alexi Worth and Jan van Eyck s Crucifixion and Last Judgment (ca. 1435 40) - The Brooklyn Rail (brooklynrail.org)
A PARLIAMENT OF SOUND The Twentieth Annual Vision Festival - The Brooklyn Rail
A PARLIAMENT OF SOUND The Twentieth Annual Vision Festival - The Brooklyn Rail (brooklynrail.org)
STANLEY WHITNEY and LORRAINE O GRADY - The Brooklyn Rail
STANLEY WHITNEY and LORRAINE O GRADY - The Brooklyn Rail (brooklynrail.org)
The Secret Life of Everything - The Brooklyn Rail
The Secret Life of Everything - The Brooklyn Rail (brooklynrail.org)
Capillary Porosity in Hardened Cement Paste
Capillary Porosity in Hardened Cement Paste (astm.org)
2019 | City of Ottawa
2019 | City of Ottawa (ottawa.ca)
Radon Toxicity: Annex I: Methods of Detection and Mitigation for Increased Levels of Radon | Environmental Medicine | ATSDR
Radon Toxicity: Annex I: Methods of Detection and Mitigation for Increased Levels of Radon | Environmental Medicine | ATSDR (atsdr.cdc.gov)
Hair Porosity: What Is It and What Type Do You Have?
Hair Porosity: What Is It and What Type Do You Have? (healthline.com)
Lithofacies, diagenesis and reservoir quality of Upper Shu'aiba reservoirs in northwestern Oman | GeoArabia | GeoScienceWorld
Lithofacies, diagenesis and reservoir quality of Upper Shu'aiba reservoirs in northwestern Oman | GeoArabia | GeoScienceWorld (pubs.geoscienceworld.org)
Alex Klimoski Archives - Metropolis
Alex Klimoski Archives - Metropolis (metropolismag.com)
Is Yoko Ono smarter than a 4th grader? | Watts Up With That?
Is Yoko Ono smarter than a 4th grader? | Watts Up With That? (wattsupwiththat.com)
Wheaton® 416000 Complete Soxhlet Extraction Apparatus with Allihn Reflux Co
Wheaton® 416000 Complete Soxhlet Extraction Apparatus with Allihn Reflux Co (capitolscientific.com)
NIOSH FACE Program: New Jersey Case Report 08NJ003 | CDC/NIOSH
NIOSH FACE Program: New Jersey Case Report 08NJ003 | CDC/NIOSH (cdc.gov)
Residential Architecture Designs in Australia | HabitusLiving.com
Residential Architecture Designs in Australia | HabitusLiving.com (habitusliving.com)
Energies | Free Full-Text | 3DHIP-Calculator-A New Tool to Stochastically Assess Deep Geothermal Potential Using the Heat-In...
Energies | Free Full-Text | 3DHIP-Calculator-A New Tool to Stochastically Assess Deep Geothermal Potential Using the Heat-In... (mdpi.com)
Water | Free Full-Text | Forecasting of Debris Flow Using Machine Learning-Based Adjusted Rainfall Information and RAMMS Model
Water | Free Full-Text | Forecasting of Debris Flow Using Machine Learning-Based Adjusted Rainfall Information and RAMMS Model (mdpi.com)
PDF] Ultrahigh Porosity in Metal-Organic Frameworks | Semantic Scholar
PDF] Ultrahigh Porosity in Metal-Organic Frameworks | Semantic Scholar (semanticscholar.org)
Water-Modeling Expert Panel Review | Camp Lejeune, North Carolina | ATSDR
Water-Modeling Expert Panel Review | Camp Lejeune, North Carolina | ATSDR (atsdr.cdc.gov)