Porosity
Haversian System
Materials Testing
Compressive Strength
Tissue Scaffolds
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
Tissue Engineering
Biocompatible Materials
Dental Casting Investment
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
Surface Properties
Implants, Experimental
Bowhead Whale
Calcium Phosphates
Durapatite
Bone and Bones
Tablets
Polymers
Hardness
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
Polyurethanes
Silicon Dioxide
Stress, Mechanical
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.
Nanocomposites
Tensile Strength
Apatites
Nanofibers
Bone Regeneration
Physicochemical Processes
Permeability
Ursidae
Drug Compounding
Polyvinyl Alcohol
Chitosan
Biomechanical Phenomena
Equipment Failure Analysis
Radius
Nanostructures
Biofouling
Water
Tibia
Hydrogels
Elastic Modulus
Titanium
Chemistry, Pharmaceutical
Quartz
Computer-Aided Design
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
Osteocytes
Glycols
Osseointegration
Magnesium Oxide
Filtration
Rhamnaceae
Lactic Acid
Microspheres
Freeze Drying
Polyethylene Terephthalates
Bixaceae
Wettability
Polyglactin 910
Excipients
Dental Casting Technique
Tantalum
Vacuum
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
Numerical Analysis, Computer-Assisted
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
Calcification, Physiologic
Silicon
Glass
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
Povidone
Gelatin
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 Aids
Gidi & Pearls - The Best Moisturizers To Protect Your High Porosity Hair For Winter
Patente US8114806 - Catalysts having selected pore size distributions, method of making such ... - Google Patentes
Carbon porous beads TDX-02
Mongongo & Hemp Seed Oils High Porosity Moisture-Seal Masque | Black Beauty House
Swelling of cellulosic porous materials - mathematical description and verification :: BioResources
The role of surface chemistry and porosity on the adsorption of inflammatory mediators<...
Hair Care Tips for High Porosity Hair - TheWetLab
Modeling the Thermodynamics and Dynamics of Fluids Confined in Three-D by Anish Julius Desouza
Molecular simulation study on adsorption of methanol/water mixtures in mesoporous silicas modified pore surface silylation<...
Shea Moisture Mongongo &High Porosity Mois. Seal Shampoo13oz | The BraidBoxSwiss
Porosity & Your Hair
Acoustic methods for measuring the porosities of porous materials incorporating dead-end pores - Espace ÉTS
types of porosity
Working with your hairs porosity! What is hair porosity?
Patent US4994037 - Absorbent structure designed for absorbing body fluids - Google Patents
Controlled drug release from porous materials by plasma polymer deposition - Chemical Communications (RSC Publishing)
Hauptseminar Soft Matter SS 2019/Transport of electrolytes across porous materials - ICPWiki
Hauptseminar Soft Matter SS 2019/Transport of electrolytes across porous materials - ICPWiki
Porous Materials Inc.
Numerical evaluation of the influence of porosity on bending properties of 2D carbon/carbon composites - Nottingham ePrints
SVIBOR - Papers - project code: 2-15-020
Surfaces of Nanoparticles and Porous Materials | Taylor & Francis Group
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
Water Behavior in Hydrophobic Porous Materials
Patent US20070049153 - Textured wiper material with multi-modal pore size distribution - Google Patents
Nanoil For High Porosity Hair - check the best oil for you!
Shape-Anchored Porous Polymer Monoliths for Integrated Online Solid-Phase Extraction-Microchip Electrophoresis-Electrospray...
Pore size distribution and adsorption selectivity of sepiolite | Clay Minerals | GeoScienceWorld
Experimental Investigation of the Effect of Pore Size Distribution on Nano-particle Capture Efficiency Within Ceramic...
Combined characterization of pore size distribution and permeability in fibrous textiles by capillary flow porometry - Espace...
High Porosity Particulate Beds Structurally Stabilized by Epoxy - Energy Innovation Portal
Porosity sealing
Dipòsit Digital de la Universitat de Barcelona: Influence of porosity on the critical currents of trifluoroacetate-MOD...
In-Pore stress by drying-induced capillary bridges inside porous materials. - INSU - Institut national des sciences de lUnivers
Pump Hair Porosity Equalizer SP - Pump Haircare Salon Professional
Controls on primary porosity and permeability development in igneous rocks<...
Use of Capillary Pressure Data and Log Calculated Water Saturation for the Characterization of Dual Porosity, Dual Permeability...
American Society for Testing and Materials (1999) Standard Test Method for Determination of Pore Volume and Pore Volume...
Porous objects having immobilized encapsulated biomolecules - Patent # 8709464 - PatentGenius
Patent US20050230252 - Microfluidic test device - Google Patents
SSOE - SSOE Resources - Five Pitt engineering faculty set university and school record by receiving competitive NSF CAREER...
Meso-Architecture Block Copolymers with High Surface Area Styrene-Bridged Organosilica Particles as Constituent for the Stimuli...
Porosity of Silica Monoliths with Tailored Mesopores of Ink-Bottle Shape Determined by Nitrogen Adsorption and Positron...
Porosity - calculator - fxSolver
5 Signs Indicating You Have High Porosity Hair - Hairlicious Inc.
583bv) Effect of Confinement in Nanopores of Carbon On Reaction Kinetics, Catalyst Activity and Selectivity | AIChE
Consolidation and Permeability Behavior of High Porosity Baltic Seabed by Ajoykumar Ag
PREMIER PRO MIX HIGH POROSITY - Golden Acre Home & Garden
Patent US6635174 - Foamed material filled with inner material - Google Patents
Porosity
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 ...
Porosity 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 ...
Gas 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 ...
Effective 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 ...
Porosity 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. ...
Hydrogen 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 ...
Formation 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 ...
Sliced 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 ...
Joseph Gelfer
"Occupy Porosity." OnlineOpinion, April 2012. "2012 and Indigenous Fantasy." Fortean Times, February 2012. "Interview with ...
Richard 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". ...
Petrophysics
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 ...
Shell molding
High porosity possible. Secondary machining often required. High labor cost if done manually. Cylinder head, connecting rod, ...
Well
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 ...
Soil 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 ...
Porous 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 ...
Earth Revealed: Introductory Geology
It discusses aquifers and aquicludes; rock porosity and permeability; effluence; artesian wells; the water table; the formation ...
Sonic 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. ...
Ice-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 ...
Silicon organic water repellent
... porosity decreasing impregnation of concrete; manufacture of acid-resistant cement; Glasswork and cerarnics: antireflection ...
Shielding 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 ...
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 ...
Phi
Porosity in geology and hydrology. Strength (or resistance) reduction factor in structural engineering, used to account for ...
Laura J. Crossey
"The Chemistry of Secondary Porosity". In McDonald, David A.; Surdam, Ronald C. (eds.). Clastic Diagenesis. AAPG Memoir. Vol. 37 ...
Preclinical imaging
Deng CX, Sieling F, Pan H, Cui J (April 2004). "Ultrasound-induced cell membrane porosity". Ultrasound in Medicine & Biology. ...
Pore 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 ( ...
Copper indium gallium selenide solar cell
The increased rate is a result of the greater surface area associated with porosity. Porosity produces rougher absorber ...
Chvorinov'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 ...
Gevgelija
Mile Radenković; 21-01-2008 Megleno-Romanians in Gudurica: Language and Identity Dimova, Rozita (2021). Border Porosities. ...
Sonoelectrochemistry
... increase in electrodeposit porosity and hardness; increase in gas removal from electrochemical solutions; increase in electrode ...
Postage 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 ...
CDC - 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 ...
Fluid-rich subducting topography generates anomalous forearc porosity | Nature
Capillary 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 ...
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 ...
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 ...
Realistic 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 ...
Carbonate 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 ...
low 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 ...
Hair 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 ...
PDF] 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 ...
Influence 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 ...
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 ...
Multiple 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 ...
Porosity and Measure Plastic Connector with 3D Scanning Video | Laser Design
Master'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- ...
Nanoscale porosity analysis in geological materials | Université de Liège
Lambert » 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 ...
A 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 ...
A 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 ...
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 ...
British 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 ...
Emulsion soft templating of carbide-derived carbon nanospheres with controllable porosity for capacitive electrochemical energy...
STEVEN 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 ...
Solid 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 ...
1904.01105] Poly(ionic liquid)-derived N-doped carbons with hierarchical porosity for lithium and sodium ion batteries
Stereology- 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 ...
Porcelain Tile and Porosity - Ceramic Tile Advice Forums - John Bridge Ceramic Tile
What 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 ...
Shallow 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 ...
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 ...
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
- How To Moisturize Low Porosity Hair? (rockthetrend.com)
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
- Coarse Porosity Fritted Support Base. (capitolscientific.com)
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
- Framework and fenestral porosity. (elsevier.com)
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)