The resistance that a gaseous or liquid system offers to flow when it is subjected to shear stress. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The internal resistance of the BLOOD to shear forces. The in vitro measure of whole blood viscosity is of limited clinical utility because it bears little relationship to the actual viscosity within the circulation, but an increase in the viscosity of circulating blood can contribute to morbidity in patients suffering from disorders such as SICKLE CELL ANEMIA and POLYCYTHEMIA.
The study of the deformation and flow of matter, usually liquids or fluids, and of the plastic flow of solids. The concept covers consistency, dilatancy, liquefaction, resistance to flow, shearing, thixotrophy, and VISCOSITY.
Methylester of cellulose. Methylcellulose is used as an emulsifying and suspending agent in cosmetics, pharmaceutics and the chemical industry. It is used therapeutically as a bulk laxative.
The volume of packed RED BLOOD CELLS in a blood specimen. The volume is measured by centrifugation in a tube with graduated markings, or with automated blood cell counters. It is an indicator of erythrocyte status in disease. For example, ANEMIA shows a low value; POLYCYTHEMIA, a high value.
The formation of clumps of RED BLOOD CELLS under low or non-flow conditions, resulting from the attraction forces between the red blood cells. The cells adhere to each other in rouleaux aggregates. Slight mechanical force, such as occurs in the circulation, is enough to disperse these aggregates. Stronger or weaker than normal aggregation may result from a variety of effects in the ERYTHROCYTE MEMBRANE or in BLOOD PLASMA. The degree of aggregation is affected by ERYTHROCYTE DEFORMABILITY, erythrocyte membrane sialylation, masking of negative surface charge by plasma proteins, etc. BLOOD VISCOSITY and the ERYTHROCYTE SEDIMENTATION RATE are affected by the amount of erythrocyte aggregation and are parameters used to measure the aggregation.
Ability of ERYTHROCYTES to change shape as they pass through narrow spaces, such as the microvasculature.
The deformation and flow behavior of BLOOD and its elements i.e., PLASMA; ERYTHROCYTES; WHITE BLOOD CELLS; and BLOOD PLATELETS.
Reduction of blood viscosity usually by the addition of cell free solutions. Used clinically (1) in states of impaired microcirculation, (2) for replacement of intraoperative blood loss without homologous blood transfusion, and (3) in cardiopulmonary bypass and hypothermia.
Resistance and recovery from distortion of shape.
The homogeneous mixtures formed by the mixing of a solid, liquid, or gaseous substance (solute) with a liquid (the solvent), from which the dissolved substances can be recovered by physical processes. (From Grant & Hackh's Chemical Dictionary, 5th ed)
Repetitive withdrawal of small amounts of blood and replacement with donor blood until a large proportion of the blood volume has been exchanged. Used in treatment of fetal erythroblastosis, hepatic coma, sickle cell anemia, disseminated intravascular coagulation, septicemia, burns, thrombotic thrombopenic purpura, and fulminant malaria.
Polysaccharide gums from PLANTS.
Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS).
Colorless, odorless crystals that are used extensively in research laboratories for the preparation of polyacrylamide gels for electrophoresis and in organic synthesis, and polymerization. Some of its polymers are used in sewage and wastewater treatment, permanent press fabrics, and as soil conditioning agents.
The sum of the weight of all the atoms in a molecule.
Liquids that dissolve other substances (solutes), generally solids, without any change in chemical composition, as, water containing sugar. (Grant & Hackh's Chemical Dictionary, 5th ed)
Chromatography on non-ionic gels without regard to the mechanism of solute discrimination.
Agents that are capable of inserting themselves between the successive bases in DNA, thus kinking, uncoiling or otherwise deforming it and therefore preventing its proper functioning. They are used in the study of DNA.
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)
A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).
Elements of limited time intervals, contributing to particular results or situations.
The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases, new or old, in the population at a given time.
Computer-based representation of physical systems and phenomena such as chemical processes.
Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures.
A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.
Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
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.
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.
The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.
The measure of the level of heat of a human or animal.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
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.
The internal resistance of a material to moving some parts of it parallel to a fixed plane, in contrast to stretching (TENSILE STRENGTH) or compression (COMPRESSIVE STRENGTH). Ionic crystals are brittle because, when subjected to shear, ions of the same charge are brought next to each other, which causes repulsion.
The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A rigorously mathematical analysis of energy relationships (heat, work, temperature, and equilibrium). It describes systems whose states are determined by thermal parameters, such as temperature, in addition to mechanical and electromagnetic parameters. (From Hawley's Condensed Chemical Dictionary, 12th ed)
Presence of warmth or heat or a temperature notably higher than an accustomed norm.
Spectroscopic method of measuring the magnetic moment of elementary particles such as atomic nuclei, protons or electrons. It is employed in clinical applications such as NMR Tomography (MAGNETIC RESONANCE IMAGING).
A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The process of cumulative change at the level of DNA; RNA; and PROTEINS, over successive generations.
Occupations of medical personnel who are not physicians, and are qualified by special training and, frequently, by licensure to work in supporting roles in the health care field. These occupations include, but are not limited to, medical technology, physical therapy, physician assistant, etc.
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.
The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. (Grant & Hackh's Chemical Dictionary, 5th ed)
Animate or inanimate sources which normally harbor disease-causing organisms and thus serve as potential sources of disease outbreaks. Reservoirs are distinguished from vectors (DISEASE VECTORS) and carriers, which are agents of disease transmission rather than continuing sources of potential disease outbreaks.
Development of a library collection, including the determination and coordination of selection policy, assessment of needs of users and potential users, collection use studies, collection evaluation, identification of collection needs, selection of materials, planning for resource sharing, collection maintenance and weeding, and budgeting.
Books used in the study of a subject that contain a systematic presentation of the principles and vocabulary of a subject.
Substances and materials manufactured for use in various technologies and industries and for domestic use.
Formal voluntary or governmental procedures and standards required of hospitals and health or other facilities to improve operating efficiency, and for the protection of the consumer.
An agency of the PUBLIC HEALTH SERVICE concerned with the overall planning, promoting, and administering of programs pertaining to maintaining standards of quality of foods, drugs, therapeutic devices, etc.
Substances intended to be applied to the human body for cleansing, beautifying, promoting attractiveness, or altering the appearance without affecting the body's structure or functions. Included in this definition are skin creams, lotions, perfumes, lipsticks, fingernail polishes, eye and facial makeup preparations, permanent waves, hair colors, toothpastes, and deodorants, as well as any material intended for use as a component of a cosmetic product. (U.S. Food & Drug Administration Center for Food Safety & Applied Nutrition Office of Cosmetics Fact Sheet (web page) Feb 1995)
An application that must be submitted to a regulatory agency (the FDA in the United States) before a drug can be studied in humans. This application includes results of previous experiments; how, where, and by whom the new studies will be conducted; the chemical structure of the compound; how it is thought to work in the body; any toxic effects found in animal studies; and how the compound is manufactured. (From the "New Medicines in Development" Series produced by the Pharmaceutical Manufacturers Association and published irregularly.)
That segment of commercial enterprise devoted to the design, development, and manufacture of chemical products for use in the diagnosis and treatment of disease, disability, or other dysfunction, or to improve function.
A system for verifying and maintaining a desired level of quality in a product or process by careful planning, use of proper equipment, continued inspection, and corrective action as required. (Random House Unabridged Dictionary, 2d ed)
... bulk viscosity or second viscosity.. The bulk viscosity is important only when the fluid is being rapidly compressed or ... Viscoelastic solids may exhibit both shear viscosity and bulk viscosity. The extensional viscosity is a linear combination of ... Glass Viscosity Measurement Viscosity measurement, viscosity units and fixpoints, glass viscosity calculation ... "Lube-Tech - Viscosity Blending Equations" (PDF).. *^ a b c d e f g h i j k Lide, D. R., ed. (2005). CRC Handbook of Chemistry ...
Thus the bulk viscosity could easily be calculated. His other late work[citation needed] included the longitudinal dispersion ... This led to such advances as a method for measuring the second coefficient of viscosity.[citation needed] Taylor devised an ... The dissipation of the gas in the liquid during expansion was a consequence of the shear viscosity of the liquid. ...
The Coefficients of Shear and Bulk Viscosity of Liquids". The Journal of Chemical Physics. 17 (10): 988-994. Bibcode:1949JChPh ...
Kharzeev, Dmitri; Tuchin, Kirill (2008). "Bulk viscosity of QCD matter near the critical temperature". Journal of High Energy ... Liquid or even near-perfect liquid flow with almost no frictional resistance or viscosity was claimed by research teams at RHIC ...
For instance, psyllium provides bulking as well as viscosity. Bulking fibers can be soluble (e.g. psyllium) or insoluble (e.g. ... Dietary fibers make three primary contributions: bulking, viscosity and fermentation. Different fibers have different effects, ... Bile acids may be trapped within the lumen of the ileum either because of a high luminal viscosity or because of binding to a ... Certain bulking agents are not commonly recommended with the prescription of opioids because the slow transit time mixed with ...
This approach introduces the bulk viscosity ζ. =. 5. 3. μ. {\displaystyle \zeta ={\frac {5}{3}}\mu }. . ... such that just the bulk interactions are taken into account, ∇. A. i. =. ∑. j. ∈. Ω. i. V. j. A. j. ∇. W. i. j. .. {\ ... is controlling a volume viscosity while β. {\displaystyle \beta }. acts similar to the Neumann Richtmeyr artificial viscosity. ... Artificial viscosity. Introduced by Monaghan and Gingold [68] the artificial viscosity was used to deal with high Mach number ...
Increasing moisture will decrease viscosity, torque, and product temperature, and increase bulk density. This will also reduce ... The extrudate using these cereal flours exhibits a higher bulk and product density, has a similar expansion ratio, and has "a ... and affects the mix viscosity, acting to plasticize the extrudate. ...
Polymer conformation of course affects many bulk properties (such as viscosity, turbidity, etc.). Although the statistical ... When solutions of two oppositely charged polymers (that is, a solution of polycation and one of polyanion) are mixed, a bulk ...
These humectant food additives are used for the purpose of controlling viscosity and texture. Humectants also add bulk, retain ...
The other parameters represent the following: η {\displaystyle \eta } the viscosity of the medium; λ {\displaystyle \lambda } ... the bulk conductivity; ε r {\displaystyle \varepsilon _{r}} the relative permittivity of the medium; ε 0 {\displaystyle \ ... and η the viscosity. Smoluchowski developed the equation under five assumptions: Particles are spherical, nonconducting, and ... is the electrical conductivity of the bulk electrolyte solution. An improved design cell was developed to determine ...
"Study of the Quasi-isotropic Solution near the Cosmological Singularity in Presence of Bulk-Viscosity". International Journal ...
This model takes into consideration the differences between bulk and wall viscosities. Both correlations utilize the Nusselt ... while the annulus is reserved for the high viscosity stream to limit the pressure drop. Beyond double stream heat exchangers, ...
For instance, psyllium provides bulking as well as viscosity. Bulking fibers can be soluble (i.e., psyllium) or insoluble (i.e ... Dietary fibers make three primary contributions: bulking, viscosity and fermentation.[49] Different fibers have different ... Other examples of bulking fiber sources used in functional foods and supplements include cellulose, guar gum and xanthan gum. ... Adds bulk to the stool, which alleviates constipation Balances intestinal pH[77] and stimulates intestinal fermentation ...
... the bulk viscosity λ and the dynamic viscosity μ, as it is usual in linear elasticity: Linear stress constitutive equation ( ... Bulk viscosity is assumed to be constant, otherwise it should not be taken out of the last derivative. The convective ... the second viscosity ζ can be assumed to be constant. The effect of the volume viscosity ζ is that the mechanical pressure is ... Both second viscosity ζ and dynamic viscosity μ need not be constant - in general, they depend on density, on each other (the ...
Sharma, B and Kumar, R "Estimation of bulk viscosity of dilute gases using a nonequilibrium molecular dynamics approach.", ... Molecular origin of shear stresses in fluids is given in the article on viscosity. The same for normal viscous stresses can be ... Some of these agents (like gravity, changes in temperature and phase, and electromagnetic fields) act on the bulk of the ... such as stress as applied by external forces to the bulk material (like gravity) or to its surface (like contact forces, ...
The resulting powder has an extremely low bulk density and high surface area. Its three-dimensional structure results in ... Other uses include filler in silicone elastomer and viscosity adjustment in paints, coatings, printing inks, adhesives and ... viscosity-increasing, thixotropic behavior when used as a thickener or reinforcing filler. Fumed silica has a very strong ...
... non-conservation of internal energy because of local conversion of kinetic energy of bulk flow to internal energy by viscosity ... But still one can validly talk of a distinction between bulk flow and diffusive flow of internal energy, the latter driven by a ... The rate of dissipation by friction of kinetic energy of localised bulk flow into internal energy, whether in turbulent or in ... In this example, kinetic energy of bulk flow and potential energy with respect to long-range external forces such as gravity ...
Reduces the liquid's viscosity so that it can be used in aerosols. The hydrocarbon evaporates during application. ... A bulk liquid version, without a propellant, is also manufactured for industrial use.) ... This oil is diluted with a volatile hydrocarbon to make a low viscosity fluid which can be aerosolized to penetrate crevices. ... The product is also sold in bulk as a liquid to industrial companies.[15] ...
Fiber has three primary mechanisms, which in general determine their health impact: bulking, viscosity and fermentation. Fiber ... Some soluble and insoluble fibers produce a solution of high viscosity; this is essentially a gel, which slows the movement of ... Fermentable fibers are used as food by the microbiome, mildly increasing bulk, and producing short-chain fatty acids and other ... provides bulk to the intestinal contents, and insoluble fiber facilitates peristalsis - the rhythmic muscular contractions of ...
The viscosity index is a measure of how much the oil's viscosity changes as temperature changes. A higher viscosity index ... The bulk of a typical motor oil consists of hydrocarbons with between 18 and 34 carbon atoms per molecule. One of the most ... numbering system for its high-temperature viscosity ratings that spanned from low-viscosity SAE 20 to high-viscosity SAE 60. A ... The viscosity of a liquid can be thought of as its "thickness" or a measure of its resistance to flow. The viscosity must be ...
These include solubilizers, stabilizers, buffers, tonicity modifiers, bulking agents, viscosity enhancers/reducers, surfactants ... A high drug load may pose flow problems or require large capsules if the compound has a low bulk density. By the time phase III ...
"The Viscosity Effect on Autoacceleration of the Rate of Free Radical Polymerization". Wiley InterScience. 6 December 2007.. ... Autoacceleration of the overall rate of a free-radical polymerization system has been noted in many bulk polymerization systems ... It is due to the localized increases in viscosity of the polymerizing system that slow termination reactions. The removal of ... This decrease in termination rate, kt, is caused by the raised viscosity of the polymerization region when the concentration of ...
It is used to add bulk, body, texture, and viscosity to mixtures, and can protect against damage from freezing and drying. HSH ...
Water is thus removed with the unreacted acid by heating the bulk to a specific temperature. The reaction is not as ... This gives greater control at a lower temperature and also produces resins at a lower viscosity, useful in making high-solids ... an unsaturated fatty acid are combined and cooked together until the product has achieved a predetermined level of viscosity. ...
The individual monomer droplets can be considered as undergoing bulk polymerization. The liquid phase outside these droplets ... While choosing a liquid phase for suspension polymerization, we generally prefer low viscosity, high thermal conductivity and ... νm and νl are the viscosity of the monomer phase and liquid matrix respectively, ε is the interfacial tension of the two phases ... and the viscosities of the different components. The following equation derived empirically summarizes some of these ...
Depending on the type of phase and viscosity of the bulk, the agitator can be named mixer, kneader, dough mixer, amongst others ... The bulk can be composed of different substances and the aim of the operation is to blend it or to improve the efficiency of a ... Or the bulk is already blended and the aim of agitation is to increase a heat transfer or to maintain particles in suspension ... mixing liquids together promote the reactions of chemical substances keeping homogeneous liquid bulk during storage increase ...
A bulk material should have constant physical properties (such as thermal and electrical conductivity, stiffness, density, and ... viscosity, compressibility. Being smaller than the wavelengths of visible light, nanoparticles can be dispersed in transparent ... A material may have lower melting point in nanoparticle form than in the bulk form. For example, 2.5 nm gold nanoparticles melt ... The properties of a material in nanoparticle form are usually very different from those of the bulk material even when divided ...
The bulk volume is the remaining part of the pore volume and usually dominates the overall pore volume. With respect to NMR ... In this higher viscosity zone, the magnetically aligned protons can more easily transfer their energy to their surroundings. ... It makes use of the Gibbs-Thomson effect : small crystals of a liquid in the pores melt at a lower temperature than the bulk ... The relaxation time is significantly shorter for a molecule in the surface area, compared to a molecule in the bulk volume. ...
... adding viscosity stabilizers as required), usually shipped in bulk to an offsite packaging plant. Paraffin wax, used in ... Bulk tar shipping for offsite unit packaging for use in tar-and-gravel roofing or similar uses. Asphalt - used as a binder for ... May be shipped in bulk to a site to prepare as packaged blocks. Slack wax, a raw refinery output comprising a mixture of oil ... An asphalt unit prepares bulk asphalt for shipment. Petroleum coke, used in specialty carbon products such as certain types of ...
... viscosity breakers, units to lower the viscosity of the oil). All of the many other refining processes discussed below were ... Bulk tar shipping for offsite unit packaging for use in tar-and-gravel roofing. Asphalt used as a binder for gravel to form ... There is usually an oil depot at or near an oil refinery for the storage of incoming crude oil feedstock as well as bulk liquid ... May be shipped in bulk to a site to prepare as packaged blocks. Used for wax emulsions, candles, matches, rust protection, ...
The use of this type of polymerization process results in a low viscosity system having excellent heat transfer and low fouling ... Low bulk viscosity mastic compositions and process for preparing same. CA567414A *. Dec 16, 1958. Esso Research And Engineering ... In general, high yields of low bulk viscosity copolymer products of this invention are obtained within the temperature and ... with a viscosity of several thousand cps. or less being preferred. The light phase should have as low a viscosity as possible, ...
... two hands-on courses that equip users of Brookfield instruments with the knowledge to get the most out of their viscosity test ... a world standard for viscosity measurement and control, offers ... Powder/Bulk Solids. The Source for Dry Processing and Bulk ...
The skilled staff are experts in finding the wholesale and bulk high viscosity pumps that are right for your company. ... Within the O.Berk catalog of high-viscosity pumps, you can find a variety of closure diameters and neck sizes to ensure a tight ... You can also reach out to the O.Berk team to learn more about container options that are compatible with high-viscosity pumps ... There are a variety of white plastic high-viscosity pump designs at O.Berk that make dispensing lotions and creams easy and ...
Title:On bulk viscosity and moduli decay. Authors:M. Laine. Download PDF Abstract: This pedagogically intended lecture, one of ... that exists between the bulk viscosity of Yang-Mills theory (of possible relevance to the hydrodynamics of heavy ion collision ...
Probing the bulk viscosity of particles using aerosol optical tweezers Author(s): Rory Power; David L. Bones; Jonathan P. Reid ... an increase in the bulk viscosity. We demonstrate that the timescales for condensation and evaporation processes correlate with ... particle viscosity, showing significant inhibition in mass transfer kinetics using ternary sucrose/sodium chloride/water ...
... function natural in the bulk viscosity calculation. The bulk viscosity has the expected parametric form for the Boltzmann gas, ... This may be an indication that the relaxation time approximation is too crude to obtain the correct form of the bulk viscosity ... We also investigate the impact the correction has on the bulk viscosity. This correction automatically satisfies the Landau ...
Asinari, Pietro and Karlin, Ilya V. (2010) Quasiequilibrium lattice Boltzmann models with tunable bulk viscosity for enhancing ... Quasiequilibrium lattice Boltzmann models with tunable bulk viscosity for enhancing stability. Taking advantage of a closed- ... Quasiequilibrium lattice Boltzmann models with tunable bulk viscosity for enhancing stability. ... which enjoys both the H theorem and a free-tunable parameter for controlling the bulk viscosity in such a way as to enhance ...
... Public ... The viscosity of Zr[subscript 41.2]Ti[subscript 13.8]Cu[subscript 12.5]Ni[subscript 10.0]Be[subscript 22.5] (Vit1) has been ... It has previously been discovered that there exists a pronounced decrease in viscosity with increasing shear rate which is ... It has also been discovered that initially crystalline Vit1 has an order of magnitude lower viscosity than initially amorphous ...
The viscosity of the supercooled liquid of this bulk glass former, above the glass transition temperature, can be fit by a ... The viscosity of the [...] bulk metallic glass forming alloy in both the supercooled liquid and the equilibrium molten state ... This bulk metallic glass former exhibits strong glass behavior, similar to silicate glasses. The relatively high viscosity in ... Bakke, Eric (1997) Viscosity measurements of bulk metallic glass forming alloys. Dissertation (Ph.D.), California Institute of ...
CONCLUSION The tested low-viscosity bulk-fill materials show lower shrinkage force formation than a conventional flowable resin ... CONCLUSION The tested low-viscosity bulk-fill materials show lower shrinkage force formation than a conventional flowable resin ... Monomer conversion and shrinkage force kinetics of low-viscosity bulk-fill resin composites ... MATERIALS AND METHODS Three flowable bulk-fill resin composites [SureFil SDR flow (SDR; Dentsply DeTrey), Venus Bulk Fill (VB; ...
... to recover excellent agreement with the Einstein viscosity formula in the low concentration limit and to predict viscosity ... Shear viscosity of bulk suspensions at low Reynolds number with the three-dimensional lattice Boltzmann method.. @article{ ... Shear viscosity of bulk suspensions at low Reynolds number with the three-dimensional lattice Boltzmann method.}, author={ ... to recover excellent agreement with the Einstein viscosity formula in the low concentration limit and to predict viscosity ...
Pre-heating of high-viscosity bulk-fill resin composites: Effects on shrinkage force and monomer conversion ZORA Maintenance. ... Tauböck, Tobias T; Tarle, Zrinka; Marovic, Danijela; Attin, Thomas (2015). Pre-heating of high-viscosity bulk-fill resin ... OBJECTIVES To investigate the influence of pre-heating of high-viscosity bulk-fill composite materials on their degree of ... OBJECTIVES To investigate the influence of pre-heating of high-viscosity bulk-fill composite materials on their degree of ...
Title: Bulk viscosity of strange quark matter in density-dependent quark mass model and dissipation of r-modes in strange stars ... Abstract: We study the bulk viscosity of strange quark matter(SQM) in density dependent quark mass model(DDQM) under the ... The correct formulae, with which the viscosity can be evaluated, are derived. We also find that the viscosity in DDQM can be ... We calculate the damping time scales due to viscosity coupled to r-modes. The numerical results show the time scale cant be ...
Bulk viscosity[edit]. In the kinetic-molecular picture, a non-zero bulk viscosity arises in gases whenever there are non- ... Viscoelastic solids may exhibit both shear viscosity and bulk viscosity. The extensional viscosity is a linear combination of ... Glass Viscosity Measurement - viscosity measurement, viscosity units and fixpoints, glass viscosity calculation ... and the bulk viscosity κ. {\displaystyle \kappa }. such that α. =. κ. −. 2. 3. μ. {\displaystyle \alpha =\kappa -{\tfrac {2}{3 ...
... Dong H, Su N, Wang Q (2007) J.Phys.G 34(8): S643-S646. ... H. Dong, N. Su, and Q. Wang, "Bulk viscosity in nuclear and quark matter: A short review", J.Phys.G, vol. 34, 2007, pp. S643- ... Dong, H., Su, N., & Wang, Q. (2007). Bulk viscosity in nuclear and quark matter: A short review. J.Phys.G, 34(8), S643-S646. ... Dong, H., Su, N., and Wang, Q. (2007). Bulk viscosity in nuclear and quark matter: A short review. J.Phys.G 34, S643-S646. ...
Hydroxypropyl)methyl cellulose viscosity 40-60 cP, 2 % in H2O(20 °C)(lit.); CAS Number: 9004-65-3; find Sigma-Aldrich-H8384 ... Bulk Ordering & Pricing:. Need larger quantities for your development, manufacturing or research applications? ... viscosity 40-60 cP, 2 % in H2O(20 °C)(lit.) * CAS Number 9004-65-3 ... It will then begin to hydrate and dissolve, increasing the viscosity of the solution.. 5. Continue agitation for at least 30 ...
Bulk viscosity is the same as volume viscosity. *Shear viscosity is viscosity coefficient when applied stress is a shear stress ... Here, the constant η is known as the coefficient of viscosity, the viscosity, the dynamic viscosity, or the Newtonian viscosity ... Kinematic viscosity is dynamic viscosity divided by density for Newtonian fluid;. *Volume viscosity is viscosity coefficient ... Viscosity (dynamic/absolute viscosity). The IUPAC symbol for viscosity is the Greek symbol eta (. ), and dynamic viscosity is ...
... viscosity 2.0 dL/g ; Synonym: PDO-PLA, PDS-PLA; Linear Formula: (C4H6O3)m(C6H8O4)n; find Sigma-Aldrich-901700 MSDS, related ... Bulk Ordering & Pricing:. Need larger quantities for your development, manufacturing or research applications? ...
... bulk viscosity or second viscosity.. The bulk viscosity is important only when the fluid is being rapidly compressed or ... Viscoelastic solids may exhibit both shear viscosity and bulk viscosity. The extensional viscosity is a linear combination of ... Glass Viscosity Measurement Viscosity measurement, viscosity units and fixpoints, glass viscosity calculation ... "Lube-Tech - Viscosity Blending Equations" (PDF).. *^ a b c d e f g h i j k Lide, D. R., ed. (2005). CRC Handbook of Chemistry ...
In the case of viscosity, were talking about molecules sliding past each other. As the bulk fluid flows, the molecules move ... Similar Discussions: Any hints on how to derive the glass viscosity? n=n(0)exp(Q/RT)? * NaCls viscosity (Replies: 7) ... Any hints on how to derive the glass viscosity? n=n(0)exp(Q/RT)? ... Any hints on how to derive the glass viscosity? n=n(0)exp(Q/RT ...
Urethanes: tensile adhesion; bulk viscosity; hardness] Description: The Halthane series of urethane adhesives have sufficient ... The 87-1 system is high in viscosity and adhesive bond strength. The low viscosity of 73-18 and 73-14 allows more consistency ...
The figures below show the stress time history for no bulk viscosity, quadratic bulk viscosity and quadratic+linear bulk ... Bulk Viscosity Coefficients LS-DYNA provides two types of bulk viscosity coefficients namely Q1 and Q2. Q1 is called as the ... BULK_VISCOSITY. Use of bulk viscosity for shells and solids are highly recommended to improve simulation stability. The ... Bulk Viscosity for Shells and Solids in LS-DYNA. January 26, 2007 , by Suri Bala LS-DYNA Bytes LS-DYNA Elements ...
... pressure and bulk viscosity. We also confirm that the renormalization of the pressure and bulk viscosity is universal by ... The fluctuation-induced bulk viscosity reflects the nonconformal nature of the equation of state and is modestly enhanced near ... pressure and bulk viscosity. We also confirm that the renormalization of the pressure and bulk viscosity is universal by ... The fluctuation-induced bulk viscosity reflects the nonconformal nature of the equation of state and is modestly enhanced near ...
Our results show that an initial phase of viscosity-controlled advance at Cordón Caulle was followed by later crustal control, ... Our results show that an initial phase of viscosity-controlled advance at Cordón Caulle was followed by later crustal control, ... an understanding of the relative influence of characteristics such as the apparent viscosity, the yield strength of the flow ... an understanding of the relative influence of characteristics such as the apparent viscosity, the yield strength of the flow ...
Bulk volume. Pore volume. Hydrocarbon pore volume. Gas and condensate initially-in-place. Recoverable reserves. Uncertainty. 6 ... Viscosity. 4. Phase behaviour. Introduction. K-value method. Equation-of-state method. Laboratory experiments. Multistage ...
Metal Tin Bulk Odorless Super Contact Adhesive in Adhesive and Sealants Jiangxi Matrix Adhesive Co., Ltd. ... high viscosity MultiPurpose waterproof contact adhesive silicone sealant Taizhou Luqiao Jinyu Adhesive Company Limited ...
Function(s): Absorbent; Bulking Agent; Slip Modifier; OPACIFYING; VISCOSITY CONTROLLING. Synonym(s): BLEACHED WOOD PULP; ...
Function(s): Abrasive; Anticaking Agent; Bulking Agent; Opacifying Agent; ABSORBENT; VISCOSITY CONTROLLING ...
... lower viscosity/improved flow and reduced shrinkage and warpage. Higher filler loading offers the potential for lower costs. ... 3M™ Glass Bubbles K37, 4 ft semi-bulk bag. 3M Product Number K37, 3M ID 70070458149, UPC 00021200873232 ... and their low alkalinity makes this product compatible with most resins while provide a stable viscosity and long shelf life. ...
4.7The bulk fluid velocity in the outer region is therefore U. ¯. out. =. H. 2. H. X. X. X. 3. M. ¯. =. 8. (. G. 0. 2. G. 1. Y ... exactly satisfies (3.2). The viscosity field beneath the bulk of the drop is stretched linearly, as illustrated in figures 1b ... corrections to a0 in (4.26), which would also include the influence of the initial viscosity distribution across the bulk of ... 2.2The initial viscosity field M. ¯. (. X. ,. 0. ). is represented as a random field M. (. X. ,. ω. ). , where ω is an event in ...
  • Personal care and cosmetic manufacturers of highly viscous lotions, creams, conditioners, and detanglers need quality, durable high-viscosity dispensing pumps. (oberk.com)
  • As a provider of container solutions across multiple industries, O.Berk offers an extensive inventory of high-viscosity pumps in stock in a variety of designs and sizes. (oberk.com)
  • Within the O.Berk catalog of high-viscosity pumps, you can find a variety of closure diameters and neck sizes to ensure a tight-fit on your existing container. (oberk.com)
  • There are a variety of white plastic high-viscosity pump designs at O.Berk that make dispensing lotions and creams easy and mess-free. (oberk.com)
  • The skilled staff are experts in finding the wholesale and bulk high viscosity pumps that are right for your company. (oberk.com)
  • You can also reach out to the O.Berk team to learn more about container options that are compatible with high-viscosity pumps or browse through the O.Berk inventory now to place your order. (oberk.com)
  • The relatively high viscosity in the supercooled liquid and smaller Gibbs free energy difference compared to the crystal both favor bulk glass formation. (caltech.edu)
  • OBJECTIVES To investigate the influence of pre-heating of high-viscosity bulk-fill composite materials on their degree of conversion and shrinkage force formation. (uzh.ch)
  • CLINICAL SIGNIFICANCE Composite pre-heating significantly reduces shrinkage force formation of high-viscosity bulk-fill and conventional resin composites, while maintaining or increasing the degree of monomer conversion, dependent upon the specific composite material used. (uzh.ch)
  • A fluid with a high viscosity, such as pitch , may appear to be a solid . (wikipedia.org)
  • Here, we use observations of the 2011-2012 Cordón Caulle rhyolite lava flow as an unparalleled opportunity to study a high-silica flow, and we present the first modeling study to our knowledge that examines the advance of a high viscosity and crystal-poor lava. (frontiersin.org)
  • Our results significantly improve constraints on the rheological controls of high-viscosity flows. (frontiersin.org)
  • High viscosity, 99.5% minimum purity. (skylighter.com)
  • Shear and dynamic viscosity are much more known than two others. (newworldencyclopedia.org)
  • The dynamic viscosity of a fluid expresses its resistance to shearing flows, where adjacent layers move parallel to each other with different speeds. (wikipedia.org)
  • The proportionality factor μ {\displaystyle \mu } is the dynamic viscosity of the fluid, with units of Pa ⋅ s {\displaystyle {\text{Pa}}\cdot {\text{s}}} (pascal-second), often simply referred to as the viscosity. (wikipedia.org)
  • Use of the Greek letter mu ( μ {\displaystyle \mu } ) for the dynamic viscosity (sometimes also called the absolute viscosity) is common among mechanical and chemical engineers, as well as mathematicians and physicists. (wikipedia.org)
  • We study the bulk viscosity of strange quark matter(SQM) in density dependent quark mass model(DDQM) under the background of self-consistent thermodynamics. (arxiv.org)
  • It is able to reduce filtration of cement slurry of any density, but subject to the fact, that it increases viscosity, the product is more suitable for low-density cement slurries. (mirrico.ru)
  • 5.1 The data from the loose bulk density test can be used to estimate the size of bags, totes, small bins or hoppers for the storage of a fixed mass of powder in its loose condition. (astm.org)
  • 5.2 Values of loose bulk density obtained using this test method should be used with caution, since they can vary considerably depending on the inital state of dispersion of the test specimen, height-to-diameter ratio of specimen in graduated cylinder, dryness of powder, and other factors. (astm.org)
  • 5.3 The data from the tapped bulk density test can be used to estimate the needed volume of small containers holding a fixed mass of powder that has been compacted. (astm.org)
  • 5.4 Bulk density values can vary significantly if the particle size of the actual material to be handled is different than tested. (astm.org)
  • We employ holography to estimate the ratio of the shear viscosity over the entropy density in Sc-Herbertsmithite, and find it about three times smaller than in graphene. (nature.com)
  • Since direct access to the Coulomb coupling α proves difficult, we focus in this work on the easily accessible shear viscosity, or more precisely on the ratio between η and the entropy density of the fluid, s . (nature.com)
  • As explained in the "Methods" section, the shear viscosity η is straightforwardly obtained from a Kubo formula (see Eq. ( 16 ) in "Methods" section), and the entropy density s from thermodynamics (see Eq. ( 8 ) in "Methods" section). (nature.com)
  • Bulk density and particle size remained the same. (epa.gov)
  • It has also been discovered that initially crystalline Vit1 has an order of magnitude lower viscosity than initially amorphous Vit1 at 1075 K after melting. (oregonstate.edu)
  • Thus, water is "thin," having a lower viscosity, while vegetable oil is "thick" having a higher viscosity. (newworldencyclopedia.org)
  • The unique spherical shape of these bubbles offers a number of additional benefits, including: higher filler loading, lower viscosity/improved flow and reduced shrinkage and warpage. (3m.com)
  • It has previously been discovered that there exists a pronounced decrease in viscosity with increasing shear rate which is contrary to the general belief that metallic systems above the liquidus temperature should show Newtonian behavior due to high atomic mobility. (oregonstate.edu)
  • This current study has discovered that this shear rate dependence of the viscosity of Vit1 decreases with increasing temperature and approaches the Newtonian behavior and viscosities of simple monatomic or binary liquid alloys at 1225 K. Once this state is reached the viscosity will remain Newtonian in the liquid state and no order is reformed until the sample is cooled into the supercooled region. (oregonstate.edu)
  • This indicates a strong temperature history dependence of the viscosity. (oregonstate.edu)
  • This difference decreases with increasing temperature until similar viscosities are obtained at 1175 K. The Vogel-Fulcher-Tammann relationship shows decreasing fragility of Vit1 with increasing shear rate and increasing temperature. (oregonstate.edu)
  • Parallel plate rheometry and three-point beam-bending were used to measure the viscosity as a function of temperature in the supercooled liquid, and the technique of capillary flow was used in the molten state. (caltech.edu)
  • The viscosity of the supercooled liquid of this bulk glass former, above the glass transition temperature, can be fit by a Vogel-Fulcher relation which exhibits a small Vogel-Fulcher temperature relative to the glass transition temperature. (caltech.edu)
  • The values of viscosity measured by capillary flow above the liquidus temperature agree with the extrapolation of the Vogel-Fulcher relation to these temperatures. (caltech.edu)
  • Knowledge of the viscosity as a function of temperature is essential for shaping and molding, and has led to possible extended commercial applications of these novel materials which exhibit unique mechanical properties. (caltech.edu)
  • The viscosity is not a material constant, but a material property that depends on physical properties like temperature. (wikipedia.org)
  • After shifting the temperature to account for the energy of nonequilibrium modes, the remaining divergences are renormalized into local parameters, e.g., pressure and bulk viscosity. (aleksas.eu)
  • The fluctuation-induced bulk viscosity reflects the nonconformal nature of the equation of state and is modestly enhanced near the QCD deconfinement temperature. (aleksas.eu)
  • All viscosity measurements were conducted using a capillary viscometer at temperatures ranging between 25 and 65°C. Both types of nanofluids showed increasing viscosity with increasing nanoparticle loading and decreasing viscosity with increasing temperature. (intechopen.com)
  • These factors are the viscosity of the base fluid, nanoparticles' volume fraction, nanoparticles' size, the temperature of the system, some molecular properties, and zeta potential. (intechopen.com)
  • This asymptotic behavior yields the volume viscosity term of the limiting one-temperature fluid model. (aimsciences.org)
  • D. Bruno and V. Giovangigli, Erratum: "Relaxation of internal temperature and volume viscosity'' [Phys. (aimsciences.org)
  • 4 . The method of claim 1 , wherein the bulk hydrodynamic resistance in the at least one microscale cavity in the microfluidic device is regulated by varying or selecting a concentration of the at least one bulk viscosity enhancer disposed therein, by varying or selecting a temperature within the at least one microscale cavity, or both. (google.co.uk)
  • The closely controlled viscosity of Mobil Jet Oil 387 at -40°C (-40°F), and a pour point below -54°C (-65°F), ensure the good low-temperature fluidity which permits starting and lubrication at temperatures as low as -40°C. In extensive laboratory testing, Mobil Jet Oil 387 exhibits excellent bulk oil stability at temperatures greater than 225°C (437°F). (exxonmobil.com)
  • However, the mixing temperature and duration can cause rubber particles to depolymerize and subsequently cause loss of viscosity. (hindawi.com)
  • The estimated viscosity was validated by pressure/volume/temperature (PVT) analysis. (onepetro.org)
  • influence of salinity, influence of temperature and differences in bulk viscosity and in-situ viscosity. (uib.no)
  • A simulation of liquids with different viscosities. (wikipedia.org)
  • For liquids, it corresponds to the informal concept of "thickness": for example, syrup has a higher viscosity than water . (wikipedia.org)
  • A Differential Pressure Wave-Based Sensor Setup for the Acoustic Viscosity of Liquids. (donau-uni.ac.at)
  • Based on a radial flow technique, Titan Enterprises turbine flowmeter range provides a way to accurately measure the flow of low viscosity liquids. (eurekamagazine.co.uk)
  • Otherwise, all fluids have positive viscosity and are technically said to be viscous or viscid. (wikipedia.org)
  • Some studies on nanofluids' rheological behavior were devoted to understanding whether these fluids are Newtonian or non-Newtonian toward finding their viscosity based on the relation between the shear stress and the shear rate. (intechopen.com)
  • The development and results of converting viscosity data to configurational entropy using the Adam-Gibbs entropy model for viscous flow are discussed. (oregonstate.edu)
  • Using modified Lees-Edwards boundary conditions and directly calculated viscous dissipation, we show that it is possible to recover excellent agreement with the Einstein viscosity formula in the low concentration limit and to predict viscosity corrections for larger concentrations. (semanticscholar.org)
  • Viscosity is the material property which relates the viscous stresses in a material to the rate of change of a deformation (the strain rate). (wikipedia.org)
  • The word "viscosity" is derived from the Latin " viscum ", meaning mistletoe and also a viscous glue made from mistletoe berries. (wikipedia.org)
  • We examine theoretically the spreading of a viscous liquid drop over a thin film of uniform thickness, assuming the liquid's viscosity is regulated by the concentration of a solute that is carried passively by the spreading flow. (royalsocietypublishing.org)
  • Such low viscosity means that microscopic processes in plasma cause small irregularities in the magnetic field, causing particles to collide more frequently and making the plasma less viscous. (uchicago.edu)
  • 2012. Practical Downhole Dielectric and NMR Based Workflow for Viscosity Measurement in a Viscous Shaly Sand Reservoir Using Laboratory Calibration. (onepetro.org)
  • The eddy viscosity hypothesis assumes that the Reynolds stresses can be related to the mean velocity gradients and Eddy (turbulent) Viscosity by the gradient diffusion hypothesis, in a manner analogous to the relationship between the stress and strain tensors in laminar Newtonian flow. (slideserve.com)
  • The viscosity of a fluid is a measure of its resistance to deformation at a given rate. (wikipedia.org)
  • Viscosity can be conceptualized as quantifying the internal frictional force that arises between adjacent layers of fluid that are in relative motion. (wikipedia.org)
  • This is because a force is required to overcome the friction between the layers of the fluid which are in relative motion: the strength of this force is proportional to the viscosity. (wikipedia.org)
  • Viscosity is a measure of the resistance of a fluid to deform under either shear stress or extensional stress. (newworldencyclopedia.org)
  • Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction . (newworldencyclopedia.org)
  • There are several different viscosity coeffients depending on the nature of applied stress and nature of the fluid. (newworldencyclopedia.org)
  • The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress . (wikipedia.org)
  • Viscosity is a property of the fluid which opposes the relative motion between the two surfaces of the fluid that are moving at different velocities . (wikipedia.org)
  • In simple terms, viscosity means friction between the molecules of fluid. (wikipedia.org)
  • As the bulk fluid flows, the molecules move along an energy landscape with valleys and peaks corresponding to locations where it's more or less energetically favorable to bond to adjacent molecules. (physicsforums.com)
  • 3 . The method of claim 1 , wherein the at least one bulk viscosity enhancer is flowed in the microfluidic device using one or more fluid direction components comprising one or more of: a fluid pressure force modulator, an electrokinetic force modulator, a capillary force modulator, or a fluid wicking element. (google.co.uk)
  • 5 . The method of claim 4 , wherein the regulated bulk hydrodynamic resistance thereby regulates dispersion during fluid flow in the at least one microscale cavity. (google.co.uk)
  • The Coulomb interaction also mediates energy and momentum transfer within the fluid ensuring a local thermal equilibrium, and thereby controls transport coefficients such as the shear viscosity η . (nature.com)
  • The physical relevance of η / s is that it yields the shear viscosity per effective degree of freedom participating in the momentum diffusion in the fluid. (nature.com)
  • Using ϕ w as a reference and accounting for restricted molecular diffusion in small pores, NMR analysis based on diffusion relaxation provides more accurate oil viscosity and fluid volumes. (onepetro.org)
  • Together with the viscosity profile, the comparison between the pore fluid volumes in the flushed zone and the bulk volume of water from deep resistivity is used to identify the zones of movable oil and to estimate residual oil saturation. (onepetro.org)
  • How to derive plane strain bulk modulus? (physicsforums.com)
  • bulk modulus. (scribd.com)
  • This is due to the alteration to the property of the bituminous binder in terms of the viscosity, softening point, [ 1 ] loss modulus, and storage modulus [ 2 ]. (hindawi.com)
  • Citation: "Suppressed effective viscosity in the bulk intergalactic plasma. (uchicago.edu)
  • Intrinsic viscosity is measured using the technique of dilute solution viscometry (DSV), which, as the name suggests, involves the analysis of low concentrations of polymer dissolved in an appropriate solvent. (thefreedictionary.com)
  • These two methods, which involve completely different geometries for the measurement of flow, yielded consistent values for viscosity where their applicable regions overlap. (caltech.edu)
  • viscosity measurement. (nottingham.ac.uk)
  • 5. The process according to claim 4 , further comprising the step of calculating the viscosity of the compound from the measurement in step (d). (google.com)
  • We compared the in-situ NMR signal of oil to the surface NMR measurement of a bulk oil sample. (onepetro.org)
  • Extensional viscosity is widely used for characterizing polymers. (newworldencyclopedia.org)
  • 1.5 Ultra-high-molecular-weight polyethylenes, as defined in this specification, are those linear polymers of ethylene which have a relative viscosity of 1.44 or greater, in accordance with the test procedures described herein. (astm.org)
  • The rheological measurements showed that in order to increase the viscosity in the HMPAM polymers above HPAM, a threshold value of amount of hydrophobic groups needed to be crossed. (uib.no)
  • The polymers showed similar behavior and shear viscosities in bulk measurements. (uib.no)
  • The relative strength of this force is a measure of the fluid's viscosity. (wikipedia.org)
  • In general, in any flow, layers move at different velocities and the fluid's viscosity arises from the shear stress between the layers that ultimately opposes any applied force. (newworldencyclopedia.org)
  • For a given velocity pattern, the stress required is proportional to the fluid's viscosity. (wikipedia.org)
  • So for a tube with a constant rate of flow, the strength of the compensating force is proportional to the fluid's viscosity. (wikipedia.org)
  • Accurate forecasts of lava flow length rely on estimates of eruption and magma properties and, potentially more challengingly, on an understanding of the relative influence of characteristics such as the apparent viscosity, the yield strength of the flow core, or the strength of the lava's surface crust. (frontiersin.org)
  • LS-DYNA provides two types of bulk viscosity coefficients namely Q1 and Q2. (d3view.com)
  • Rev. E 79, 036703 (2009)] and splitting the relaxation to the equilibrium in two steps, an entropic quasiequilibrium (EQE) kinetic model is proposed for the simulation of low Mach number flows, which enjoys both the H theorem and a free-tunable parameter for controlling the bulk viscosity in such a way as to enhance numerical stability in the incompressible flow limit. (soton.ac.uk)
  • Asinari, Pietro and Karlin, Ilya V. (2010) Quasiequilibrium lattice Boltzmann models with tunable bulk viscosity for enhancing stability. (soton.ac.uk)
  • The high thermal stability above the glass transition of this bulk metallic glass former with respect to crystallization allows measuring viscosities 120 K into the supercooled liquid region. (caltech.edu)
  • Use of bulk viscosity for shells and solids are highly recommended to improve simulation stability. (d3view.com)
  • This bulk metallic glass former exhibits strong glass behavior, similar to silicate glasses. (caltech.edu)
  • This study focused on measuring the viscosity and analyzing the behavior of two types of nanofluids: ferrous oxide-deionized (DI) water nanofluids and graphene-DI water nanofluids at different temperatures and volume fractions. (intechopen.com)
  • Even though a polymer might have good properties in bulk rheology measurements, the behavior and interactions in a porous media might be very different. (uib.no)
  • In vitro measurements of luminal viscosity and glucose/maltose bioaccessibility for oat bran, instant oats, and steel cut oats. (umass.edu)
  • Here, computational modeling and experimental measurements on metal samples subject to a laser-driven, ablative Richtmyer-Meshkov instability showed differences between viscosity and strength effects. (osti.gov)
  • Analysis shows that measurements of shock perturbation amplitudes at low sample thickness-to-wavelength ratios are not enough to differentiate between strength and viscosity effects, but that surface displacement data of the fed-through fed-thru perturbations appears to resolve the ambiguity. (osti.gov)
  • Paper III compared an HMPAM polymer with its HPAM counterpart in both bulk rheology and in-situ rheology measurements. (uib.no)
  • Experimentally obtained viscosities for 2018 products and earlier lavas from the Pu'u 'Ō'ō vents tightly constrain the viscosity threshold required for local stress-field reorientation. (nature.com)
  • Fig. 4: Bulk viscosity of Kīlauea 2018 and Pu'u 'Ō'ō (PO) eruptive products. (nature.com)
  • The task includes the ratio of two characteristic length scales, one of which is the Prandtl scale, and the other is defined as the square root of the normalized coefficient of relaxation viscosity (Frolovskaya and Pukhnachev, 2018) and does not depend on the characteristics of the motion. (mdpi.com)
  • Sampled specimens shall be tested for dilute solution viscosity. (astm.org)
  • This may be an indication that the relaxation time approximation is too crude to obtain the correct form of the bulk viscosity for quantum gases. (cern.ch)
  • This glass forming ability is directly related to the fragility index and the relaxation kinetics as measured by viscosity, as well as the critical cooling rate. (caltech.edu)
  • OBJECTIVE To investigate the subsurface degree of conversion (DC) and shrinkage force formation of low-viscosity (flowable) bulk-fill composite materials. (uzh.ch)
  • CONCLUSION The tested low-viscosity bulk-fill materials show lower shrinkage force formation than a conventional flowable resin composite at high levels of degree of conversion up to 4-mm incremental thickness. (uzh.ch)
  • Pre-heating of bulk-fill and conventional restorative composites prior to photoactivation decreases polymerization-induced shrinkage forces without compromising the degree of conversion. (uzh.ch)
  • We demonstrate that the timescales for condensation and evaporation processes correlate with particle viscosity, showing significant inhibition in mass transfer kinetics using ternary sucrose/sodium chloride/water droplets as a proxy to atmospheric multi-component aerosol. (spie.org)
  • and foam booster, and as a viscosity increasing agent - aqueous . (cosmeticsinfo.org)
  • The use of this type of polymerization process results in a low viscosity system having excellent heat transfer and low fouling characteristics. (google.com)
  • ISO 11542-1 provides a classification system based on various characteristics and a range of viscosity numbers determined in accordance with ISO 1628-3. (astm.org)
  • A bulk solid consisting of large and small particles often has higher bulk densities than the fine particles by themselves. (astm.org)
  • These factors govern the swelling process of crumb rubber particles that lead to the increase of viscosity of the modified bitumen. (hindawi.com)
  • Shear viscosity of bulk suspensions at low Reynolds number with the three-dimensional lattice Boltzmann method. (semanticscholar.org)
  • This left a higher proportion of asphaltenes in the binder, therefore increasing its viscosity. (hindawi.com)
  • When looking at a value for viscosity, the number that one most often sees is the coefficient of viscosity. (newworldencyclopedia.org)
  • Our results show that an initial phase of viscosity-controlled advance at Cordón Caulle was followed by later crustal control, accompanied by formation of flow surface folds and large-scale crustal fractures. (frontiersin.org)
  • The solute field beneath the bulk of the drop is stretched by the spreading flow, such that the initial solute concentration immediately behind the drop's effective contact lines has a long-lived influence on the spreading rate. (royalsocietypublishing.org)
  • Optimised Titan Enterprises radial flow turbine flowmeters are available for applications including measuring low viscosity flow in chemical plants, semiconductor fabrication, drink dispensing equipment and fire hydrant monitoring systems. (eurekamagazine.co.uk)
  • Methods and devices for inducing high bulk hydrodynamic resistance and/or for inducing low electrical resistance in microscale systems including bulk viscosity enhancers, surfactants, and electrolytes. (google.co.uk)
  • High bulk hydrodynamic resistance is optionally utilized to regulate the effects of spontaneous injection. (google.co.uk)
  • providing at least one microscale cavity in the microfluidic device comprising at least one bulk viscosity enhancer disposed therein, wherein the at least one bulk viscosity enhancer effects an increase in bulk hydrodynamic resistance within the at least one microscale cavity, thereby inducing high bulk hydrodynamic resistance in the microfluidic device. (google.co.uk)
  • 6 . The method of claim 4 , wherein the regulated bulk hydrodynamic resistance thereby regulates spontaneous injection into the at least one microscale cavity. (google.co.uk)
  • providing at least one electrolyte disposed in the at least one microscale cavity, wherein diffusive mobility of the at least one electrolyte is substantially unaffected by the increase in bulk hydrodynamic resistance within the at least one microscale cavity, thereby inducing low electrical resistance in the microfluidic device. (google.co.uk)
  • The rocking back and forth of the phenyl group distorts the phenazinone-like backbone as it becomes co-planar and a minor solvent viscosity effect was observed in hydrogen bonding alkanol solvents. (rsc.org)
  • This pedagogically intended lecture, one of four under the header "Basics of thermal QCD", reviews an interesting relationship, originally pointed out by Bodeker, that exists between the bulk viscosity of Yang-Mills theory (of possible relevance to the hydrodynamics of heavy ion collision experiments) and the decay rate of scalar fields coupled very weakly to a heat bath (appearing in some particle physics inspired cosmological scenarios). (arxiv.org)
  • A decrease in relative humidity surrounding a particle leads to an increased concentration of solute in the droplet as the droplet returns to equilibrium and, thus, an increase in the bulk viscosity. (spie.org)
  • This correlation proposes that for any specified oil, when only pressure is the variable, viscosity varies linearly with the pressure. (thefreedictionary.com)
  • There exists many viscosity models, and based on type of development-reasoning are some viscosity models selected and presented in the article Viscosity models for mixtures . (wikipedia.org)
  • The fact that the shear rate is not controlled in an MFR test means that the test actually exaggerates the real differences in melt viscosity that occur as a function of molecular weight. (thefreedictionary.com)
  • Cereals and milled cereal products -- Determination of the viscosity o. (complianceonline.com)
  • Investigation and Modeling of an Acoustoelectric Sensor Setup for the Determination of the Longitudinal Viscosity. (donau-uni.ac.at)
  • Its low viscosity, clear formulation works on a variety of substrates including metals, ceramics, concrete and wood. (3m.com)
  • bulk metallic glass forming alloy in both the supercooled liquid and the equilibrium molten state was measured. (caltech.edu)
  • Examix NDS Injection Super Bulk 80/Pk. (net32.com)
  • In any wave propagation code, such as LS-DYNA, which belongs to a family of 'Hydro' codes, bulk viscosity is essential to treat shocks. (d3view.com)
  • The conductivity model is derived from artificial bulk and shear viscosities, such that stagnation enthalpy remains constant across shocks. (osti.gov)
  • The viscosity measured by Moldex3D's patented material characterization technology is able to help customers attain vital information that can enhance the accuracy and reliability of the simulation results accordingly. (thefreedictionary.com)
  • Zero viscosity is observed only at very low temperatures in superfluids . (wikipedia.org)
  • This invention relates to a method of polymerization particularly in the process of polymerization where the reactions are highly exothermic and the viscosity of the reaction mixture increases greatly at an early stage in the reaction, thus leading to a problem in heat transfer which in turn results in difficulties in control which are manifested by the development of hot spots in the reactor. (google.com)
  • The functional relationship between viscosity and other physical properties is described by a mathematical viscosity model called a constitutive equation which is usually more complex than the defining equation for viscosity. (wikipedia.org)
  • We also find that the viscosity in DDQM can be higher by 2 to 3 orders of magnitude than MIT bag model. (arxiv.org)
  • for example, honey has a much higher viscosity than water . (wikipedia.org)
  • The effect of hematocrit on blood viscosity is clear--the higher the percentage of blood that is made up of red blood cells, the thicker blood is going to be. (thefreedictionary.com)
  • However, HMPAM experienced higher in-situ viscosity, which most likely is a result of induced hydrophobic interactions in the porous media due to spatial restrictions. (uib.no)
  • The history and recent progresses in the study of bulk viscosity in nuclearand quark matter are reviewed. (uni-bielefeld.de)
  • Dong H, Su N, Wang Q. Bulk viscosity in nuclear and quark matter: A short review. (uni-bielefeld.de)