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.
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.
A cellulose derivative which is a beta-(1,4)-D-glucopyranose polymer. It is used as a bulk laxative and as an emulsifier and thickener in cosmetics and pharmaceuticals and as a stabilizer for reagents.
The tendency of a gas or solute to pass from a point of higher pressure or concentration to a point of lower pressure or concentration and to distribute itself throughout the available space. Diffusion, especially FACILITATED DIFFUSION, is a major mechanism of BIOLOGICAL TRANSPORT.
Colloids with a solid continuous phase and liquid as the dispersed phase; gels may be unstable when, due to temperature or other cause, the solid phase liquefies; the resulting colloid is called a sol.
A group of glucose polymers made by certain bacteria. Dextrans are used therapeutically as plasma volume expanders and anticoagulants. They are also commonly used in biological experimentation and in industry for a wide variety of purposes.
Polysaccharides composed of repeating galactose units. They can consist of branched or unbranched chains in any linkages.
Compounds that provide LUBRICATION between surfaces in order to reduce FRICTION.
Colloids with liquid continuous phase and solid dispersed phase; the term is used loosely also for solid-in-gas (AEROSOLS) and other colloidal systems; water-insoluble drugs may be given as suspensions.
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 contents included in all or any segment of the GASTROINTESTINAL TRACT.
Chemistry dealing with the composition and preparation of agents having PHARMACOLOGIC ACTIONS or diagnostic use.
A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Plasma glycoprotein clotted by thrombin, composed of a dimer of three non-identical pairs of polypeptide chains (alpha, beta, gamma) held together by disulfide bonds. Fibrinogen clotting is a sol-gel change involving complex molecular arrangements: whereas fibrinogen is cleaved by thrombin to form polypeptides A and B, the proteolytic action of other enzymes yields different fibrinogen degradation products.
The motion of fluids, especially noncompressible liquids, under the influence of internal and external forces.
Colloids formed by the combination of two immiscible liquids such as oil and water. Lipid-in-water emulsions are usually liquid, like milk or lotion. Water-in-lipid emulsions tend to be creams. The formation of emulsions may be aided by amphiphatic molecules that surround one component of the system to form MICELLES.
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)
Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS).
Any liquid used to replace blood plasma, usually a saline solution, often with serum albumins, dextrans or other preparations. These substances do not enhance the oxygen- carrying capacity of blood, but merely replace the volume. They are also used to treat dehydration.
The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN.
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.
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.
Dried, ripe seeds of PLANTAGO PSYLLIUM; PLANTAGO INDICA; and PLANTAGO OVATA. Plantain seeds swell in water and are used as demulcents and bulk laxatives.
A lymphoproliferative disorder characterized by pleomorphic B-LYMPHOCYTES including PLASMA CELLS, with increased levels of monoclonal serum IMMUNOGLOBULIN M. There is lymphoplasmacytic cells infiltration into bone marrow and often other tissues, also known as lymphoplasmacytic lymphoma. Clinical features include ANEMIA; HEMORRHAGES; and hyperviscosity.
The physical phenomena describing the structure and properties of atoms and molecules, and their reaction and interaction processes.
Organic siloxanes which are polymerized to the oily stage. The oils have low surface tension and density less than 1. They are used in industrial applications and in the treatment of retinal detachment, complicated by proliferative vitreoretinopathy.
The force acting on the surface of a liquid, tending to minimize the area of the surface. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The study of CHEMICAL PHENOMENA and processes in terms of the underlying PHYSICAL PHENOMENA and processes.
The entities of matter and energy, and the processes, principles, properties, and relationships describing their nature and interactions.
Homogeneous liquid preparations that contain one or more chemical substances dissolved, i.e., molecularly dispersed, in a suitable solvent or mixture of mutually miscible solvents. For reasons of their ingredients, method of preparation, or use, they do not fall into another group of products.
A beta-adrenergic agonist that causes direct relaxation of uterine and vascular smooth muscle. Its vasodilating actions are greater on the arteries supplying skeletal muscle than on those supplying skin. It is used in the treatment of peripheral vascular disease and in premature labor.
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.
A polyvinyl polymer of variable molecular weight; used as suspending and dispersing agent and vehicle for pharmaceuticals; also used as blood volume expander.
Relating to the size of solids.
A mixture of liquid hydrocarbons obtained from petroleum. It is used as laxative, lubricant, ointment base, and emollient.
Surface resistance to the relative motion of one body against the rubbing, sliding, rolling, or flowing of another with which it is in contact.
A trihydroxy sugar alcohol that is an intermediate in carbohydrate and lipid metabolism. It is used as a solvent, emollient, pharmaceutical agent, and sweetening agent.
The preparation, mixing, and assembling of a drug. (From Remington, The Science and Practice of Pharmacy, 19th ed, p1814)
The study of fluid channels and chambers of tiny dimensions of tens to hundreds of micrometers and volumes of nanoliters or picoliters. This is of interest in biological MICROCIRCULATION and used in MICROCHEMISTRY and INVESTIGATIVE TECHNIQUES.

Properties of non-polymerizable tropomyosin obtained by carboxypeptidase A digestion. (1/2691)

Tropomyosin digested with carboxypeptidase A [EC 3.4.12.2] (CTM) shows a lower viscosity than the undigested protein in solution. From the relation between the viscosity decrease and the amount of amino acids liberated from the carboxyl terminus during this digestion, it is inferred that loss of the tri-peptide-Thr-Ser-Ile from the C-terminus is responsible for the decrease in viscosity. The secondary structure of -TM was not affected by the digestion according to circular dichroic measurements. The viscosity of CTM did not increase in methanol-water mixtures, whereas that of tropomyosin increased markedly. These results indicate that polymerizability was lost upon the removal of a small peptide from the C-terminus without change in the secondary structure. A decrease in the viscosity of tropomyosin solutions was observed on the addition of CTM, indicating that CTM interacts with intact tropomyosin. The dependence of the viscosity decrease on the amount of CTM showed that CTM binds tropomyosin in a one-to-one ratio as a result of end-to-end interaction. Since paracrystals having a 400 A repeated band structure could be grown in the presence of Mg ions at neutral pH, side-by-side interactions in CTM molecules remain intact, even though polymerizability is lost. The disc gel electrophoretic pattern showed that troponin could bind to CTM, but no increase in viscosity due to the complex was observed in solution. That is, the C-terminal part of tropomyosin is not required for the formation of the complex. The amount of CTM bound to F-actin was less than half of that bound to undigested tropomyosin, and could be reduced to one-tenth by a washing procedure. In the presence of troponin, however, the amount recovered to the level of tropomyosin normally bound to F-actin. Therefore, it is concluded that troponin is bound in the middle of the tropomyosin molecule and strengthens the binding of tropomyosin to F-actin.  (+info)

Association and dissociation kinetics of bobwhite quail lysozyme with monoclonal antibody HyHEL-5. (2/2691)

The anti-hen egg lysozyme monoclonal antibody HyHEL-5 and its complexes with various species-variant and mutant lysozymes have been the subject of considerable experimental and theoretical investigation. The affinity of HyHEL-5 for bobwhite quail lysozyme (BWQL) is over 1000-fold lower than its affinity for the original antigen, hen egg lysozyme (HEL). This difference is believed to arise almost entirely from the replacement in BWQL of the structural and energetic epitope residue Arg68 by lysine. In this study, the association and dissociation kinetics of BWQL with HyHEL-5 were investigated under a variety of conditions and compared with previous results for HEL. HyHEL-5-BWQL association follows a bimolecular mechanism and the dissociation of the antibody-antigen complex is a first-order process. Changes in ionic strength (from 27 to 500 mM) and pH (from 6.0 to 10.0) produced about a 2-fold change in the association and dissociation rates. The effect of viscosity modifiers on the association reaction was also studied. The large difference in the HEL and BWQL affinities for HyHEL-5 is essentially due to differences in the dissociation rate constant.  (+info)

Altered crossbridge kinetics in the alphaMHC403/+ mouse model of familial hypertrophic cardiomyopathy. (3/2691)

A mutation in the cardiac beta-myosin heavy chain, Arg403Gln (R403Q), causes a severe form of familial hypertrophic cardiomyopathy (FHC) in humans. We used small-amplitude (0.25%) length-perturbation analysis to examine the mechanical properties of skinned left ventricular papillary muscle strips from mouse hearts bearing the R403Q mutation in the alpha-myosin heavy chain (alphaMHC403/+). Myofibrillar disarray with variable penetrance occurred in the left ventricular free wall of the alphaMHC403/+ hearts. In resting strips (pCa 8), dynamic stiffness was approximately 40% greater than in wild-type strips, consistent with elevated diastolic stiffness reported for murine hearts with FHC. At pCa 6 (submaximal activation), strip isometric tension was approximately 3 times higher than for wild-type strips, whereas at pCa 5 (maximal activation), tension was marginally lower. At submaximal calcium activation the characteristic frequencies of the work-producing (b) and work-absorbing (c) steps of the crossbridge were less in alphaMHC403/+ strips than in wild-type strips (b=11+/-1 versus 15+/-1 Hz; c= 58+/-3 versus 66+/-3 Hz; 27 degrees C). At maximal calcium activation, strip oscillatory power was reduced (0. 53+/-0.25 versus 1.03+/-0.18 mW/mm3; 27 degrees C), which is partly attributable to the reduced frequency b, at which crossbridge work is maximum. The results are consistent with the hypothesis that the R403Q mutation reduces the strong binding affinity of myosin for actin. Myosin heads may accumulate in a preforce state that promotes cooperative activation of the thin filament at submaximal calcium but blunts maximal tension and oscillatory power output at maximal calcium. The calcium-dependent effect of the mutation (whether facilitating or debilitating), together with a variable degree of fibrosis and myofibrillar disorder, may contribute to the diversity of clinical symptoms observed in murine FHC.  (+info)

Acinar flow irreversibility caused by perturbations in reversible alveolar wall motion. (4/2691)

Mixing associated with "stretch-and-fold" convective flow patterns has recently been demonstrated to play a potentially important role in aerosol transport and deposition deep in the lung (J. P. Butler and A. Tsuda. J. Appl. Physiol. 83: 800-809, 1997), but the origin of this potent mechanism is not well characterized. In this study we hypothesized that even a small degree of asynchrony in otherwise reversible alveolar wall motion is sufficient to cause flow irreversibility and stretch-and-fold convective mixing. We tested this hypothesis using a large-scale acinar model consisting of a T-shaped junction of three short, straight, square ducts. The model was filled with silicone oil, and alveolar wall motion was simulated by pistons in two of the ducts. The pistons were driven to generate a low-Reynolds-number cyclic flow with a small amount of asynchrony in boundary motion adjusted to match the degree of geometric (as distinguished from pressure-volume) hysteresis found in rabbit lungs (H. Miki, J. P. Butler, R. A. Rogers, and J. Lehr. J. Appl. Physiol. 75: 1630-1636, 1993). Tracer dye was introduced into the system, and its motion was monitored. The results showed that even a slight asynchrony in boundary motion leads to flow irreversibility with complicated swirling tracer patterns. Importantly, the kinematic irreversibility resulted in stretching of the tracer with narrowing of the separation between adjacent tracer lines, and when the cycle-by-cycle narrowing of lateral distance reached the slowly growing diffusion distance of the tracer, mixing abruptly took place. This coupling of evolving convective flow patterns with diffusion is the essence of the stretch-and-fold mechanism. We conclude that even a small degree of boundary asynchrony can give rise to stretch-and-fold convective mixing, thereby leading to transport and deposition of fine and ultrafine aerosol particles deep in the lung.  (+info)

A three-month repeated oral administration study of a low viscosity grade of hydroxypropyl methylcellulose in rats. (5/2691)

The toxicity of the lowest viscosity grade of hydroxypropyl methylcellulose (HPMC) that is currently commercially available was investigated by means of a three-month repeated oral administration study in male and female Crj:CD (SD) IGS rats at doses of 505, 1,020 and 2,100 mg/kg/day. Body weights of males and females in the 2,100 mg/kg group were lower than those of the control group on and after day 28 of administration, but the differences were not statistically significant. The degree of suppression of body weight gain in males was higher than that in females. This tendency was similar to the results in other toxicity studies of HPMC that have been reported. Males in the 2,100 mg/kg group showed a tendency (not significant) for decreased food consumption and urine volume. Examinations of general signs, hematology, blood chemistry, ophthalmology, absolute and relative organ weights, autopsy and histopathology revealed only a few, apparently coincidental, statistically significant differences from the control, and no evidence of any dose-dependent changes was found. It was concluded that the lowest viscosity grade of HPMC showed extremely low toxicity under the conditions of this study, as has been found for higher viscosity grades.  (+info)

Single-polymer dynamics in steady shear flow. (6/2691)

The conformational dynamics of individual, flexible polymers in steady shear flow were directly observed by the use of video fluorescence microscopy. The probability distribution for the molecular extension was determined as a function of shear rate, gamma;, for two different polymer relaxation times, tau. In contrast to the behavior in pure elongational flow, the average polymer extension in shear flow does not display a sharp coil-stretch transition. Large, aperiodic temporal fluctuations were observed, consistent with end-over-end tumbling of the molecule. The rate of these fluctuations (relative to the relaxation rate) increased as the Weissenberg number, gamma;tau, was increased.  (+info)

Thiol oxidation of actin produces dimers that enhance the elasticity of the F-actin network. (7/2691)

Slow oxidation of sulfhydryls, forming covalently linked actin dimers and higher oligomers, accounts for increases in the shear elasticity of purified actin observed after aging. Disulfide-bonded actin dimers are incorporated into F-actin during polymerization and generate cross-links between actin filaments. The large gel strength of oxidized actin (>100 Pa for 1 mg/ml) in the absence of cross-linking proteins falls to within the theoretically predicted order of magnitude for uncross-linked actin filament networks (1 Pa) with the addition of sufficient concentrations of reducing agents such as 5 mM dithiothreitol or 10 mM beta-mercaptoethanol. As little as 1 gelsolin/1000 actin subunits also lowers the high storage modulus of oxidized actin. The effects of gelsolin may be both to increase filament number as it severs F-actin and to cover the barbed end of an actin filament, which otherwise might cross-link to the side of another filament via an actin dimer. These new findings may explain why previous studies of actin rheology report a wide range of values when purified actin is polymerized without added regulatory proteins.  (+info)

Bacillus subtilis chorismate mutase is partially diffusion-controlled. (8/2691)

The effect of viscosogens on the enzyme-catalyzed rearrangement of chorismate to prephenate has been studied. The steady-state parameters kcat and kcat/Km for the monofunctional chorismate mutase from Bacillus subtilis (BsCM) decreased significantly with increasing concentrations of glycerol, whereas the 'sluggish' BsCM mutants C75A and C75S were insensitive to changes in microviscosity. The latter results rule out extraneous interactions of the viscosogen as an explanation for the effects observed with the wild-type enzyme. Additional control experiments show that neither viscosogen-induced shifts in the pH-dependence of the enzyme-catalyzed reaction nor small perturbations of the conformational equilibrium of chorismate can account for the observed effects. Instead, BsCM appears to be limited by substrate binding and product release at low and high substrate concentrations, respectively. Analysis of the kinetic data indicates that diffusive transition states are between 30 and 40% rate-determining in these concentration regimes; the chemical step must contribute to the remaining kinetic barrier. The relatively low value of the 'on' rates for chorismate and prephenate (approximately 2 x 106 m-1.s-1) probably reflects the need for a rare conformation of the enzyme, the ligand, or both for successful binding. Interestingly, the chorismate mutase domain of the bifunctional chorismate mutase-prephenate dehydratase from Escherichia coli, which has steady-state kinetic parameters comparable to those of BsCM but has a much less accessible active site, is insensitive to changes in viscosity and the reaction it catalyses is not diffusion-controlled.  (+info)

The disease is named after the Swedish physician Jan G. Waldenström, who first described it in 1944. It is also known as lymphoplasmacytic lymphoma or IgM multoculullarity.

The exact cause of Waldenström macroglobulinemia is not known, but it is believed to be linked to genetic mutations that occur in the plasma cells. The condition usually affects older adults and is more common in males than females.

Symptoms of Waldenström macroglobulinemia can include:

* Fatigue
* Weight loss
* Enlargement of the liver and spleen
* Swelling in the legs, ankles, and hands
* Pain in the bones or joints
* Increased risk of infections
* Numbness or tingling in the hands and feet

The diagnosis of Waldenström macroglobulinemia is based on a combination of physical examination, blood tests, and imaging studies. Treatment options include chemotherapy, immunomodulatory drugs, and stem cell transplantation. The prognosis for the disease varies depending on the severity of the symptoms and the response to treatment.

Overall, Waldenström macroglobulinemia is a rare and complex condition that requires careful management by a team of healthcare professionals. With appropriate treatment, many patients with this condition can experience long-term remission and improved quality of life.

... calculate coefficient of viscosity for mixtures of gases Glass Viscosity Measurement - viscosity measurement, viscosity units ... Viscoelastic solids may exhibit both shear viscosity and bulk viscosity. The extensional viscosity is a linear combination of ... Standard Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity, ASTM, ... glass viscosity calculation Kinematic Viscosity - conversion between kinematic and dynamic viscosity Physical Characteristics ...
... leading to rotational viscosity. However, recent theoretical work has predicted that rotational viscosity ought to also be ... then the rate of equilibration will be determined by the rotational viscosity coefficient.: p.304 Rotational viscosity has ... Viscosity is usually described as the property of a fluid which determines the rate at which local momentum differences are ... Rotational viscosity is a property of a fluid which determines the rate at which local angular momentum differences are ...
... s have become a central concept in the study of elliptic PDE. In particular, Viscosity solutions are ... In this case, viscosity corresponds to the bulk viscosity of an irrotational, incompressible fluid. Other names that were ... Moreover, the definition of viscosity solutions does not generally involve physical viscosity. Nevertheless, while the theory ... Viscosity solution A continuous function u is a viscosity solution of the PDE F ( x , u , D u , D 2 u ) = 0 {\displaystyle F(x, ...
Viscosity can also refer to: A cognitive dimension for the design of notations measuring resistance to change. Viscosity ( ... Look up viscosity in Wiktionary, the free dictionary. Viscosity (commonly perceived as "thickness", or resistance to pouring) ... This disambiguation page lists articles associated with the title Viscosity. If an internal link led you here, you may wish to ...
The unit of inherent viscosity is dL/g. "Dilute Solution Viscosity of Polymers". "IUPAC". v t e (Viscosity, All stub articles, ... In polymer science, inherent viscosity is the ratio of the natural logarithm of the relative viscosity of a polymer to its mass ... is the viscosity of the solution and η s {\displaystyle \eta _{s}} is the viscosity of the solvent. ... Inherent viscosity is defined as η i n h = ln ⁡ η r e l c {\displaystyle \eta _{inh}={\frac {\ln \eta _{rel}}{c}}} where c is ...
... ( η r e l {\displaystyle \eta _{rel}} ) (a synonym of "viscosity ratio") is the ratio of the viscosity of a ... solution ( η {\displaystyle \eta } ) to the viscosity of the solvent used ( η s {\displaystyle \eta _{s}} ), η r e l = η η s {\ ... displaystyle \eta _{rel}={\frac {\eta }{\eta _{s}}}} . IUPAC Compendium of Chemical Terminology v t e (Viscosity, All stub ...
That is, the two oils with viscosity Y at 100°C and a VI of 0 and 100 would have a viscosity of L and H, respectively, at 40°C ... The viscosity index (VI) is an arbitrary, unit-less measure of a fluid's change in viscosity relative to temperature change. It ... The Viscosity Index of synthetic oils ranges from 80 to over 400.[citation needed] The viscosity index can be calculated using ... "Don't Ignore Viscosity Index When Selecting a Lubricant". US: Noria. Retrieved 26 March 2020. "Viscosity Index". UK: Anton Paar ...
... (also known as elongational viscosity) is a viscosity coefficient when applied stress is extensional ... is the extensional viscosity or elongational viscosity σ n n {\displaystyle \sigma _{nn}\,\!} is the normal stress along ... The ratio between the extensional viscosity η e {\displaystyle \eta _{e}} and the dynamic viscosity η {\displaystyle \eta } is ... Extensional viscosity is defined as the ratio of the normal stress difference to the rate of strain. For uniaxial extension ...
The name is a metaphor for viscosity in liquids. Viscosity, a measurement of resistance to change for the design of notations. ... If it is easier to add a hack than it is to add code that fits into the program's design, then the system has high viscosity. ... In object oriented programming, viscosity refers to the ease at which a developer can add design-preserving code to a system. ... If it is easy to add new code to the program while maintaining the design, then the program has low viscosity. ...
The varying viscosities of the two rolled-on inks prevent them from mixing. A fourth color, of even thinner viscosity, can also ... Color viscosity printing is among the latest developments in intaglio printmaking. Color viscosity printing was developed by a ... The first ink would be fairly dense-of a relatively high viscosity. The application of the high-viscosity ink is carried out as ... Three to four colors of ink are mixed, each of a different viscosity. This viscosity is adjusted by the addition of uncooked ...
... (also called bulk viscosity, or dilatational viscosity) is a material property relevant for characterizing ... The same goes for shear viscosity. For a Newtonian fluid the shear viscosity is a pure fluid property, but for a non-Newtonian ... These were found to have volume viscosities which were hundreds to thousands of times larger than their shear viscosities. ... Common symbols for volume viscosity are ζ {\displaystyle \zeta } and μ v {\displaystyle \mu _{v}} . Volume viscosity appears in ...
... [ η ] {\displaystyle \left[\eta \right]} is a measure of a solute's contribution to the viscosity η {\ ... More generally, intrinsic viscosity can be used to assay quaternary structure. In polymer chemistry intrinsic viscosity is ... It should not be confused with inherent viscosity, which is the ratio of the natural logarithm of the relative viscosity to the ... is the viscosity in the absence of the solute, η {\displaystyle \eta } is (dynamic or kinematic) viscosity of the solution and ...
... is the viscosity of the solvent.) Relative viscosity Viscosity Intrinsic viscosity Huggins equation "Reduced viscosity of a ... In fluid dynamics, the reduced viscosity of a polymer is the ratio of the relative viscosity increment ( η i {\displaystyle \ ... The reduced viscosity is given by: η i c {\displaystyle {\frac {\eta _{i}}{c}}} where η i {\displaystyle \eta _{i}} is the ... relative viscosity increment given by η i = η − η s η s {\displaystyle \eta _{i}={\frac {\eta -\eta _{s}}{\eta _{s}}}} (Where η ...
... the apparent viscosity depends on the shear rate. Apparent viscosity has the SI derived unit Pa·s (Pascal-second), but the ... the apparent viscosity is constant, and equal to the Newtonian viscosity of the fluid, but for non-Newtonian fluids, ... not the apparent viscosity). In the case of non-Newtonian fluids, measurement of apparent viscosity without knowledge of the ... A single viscosity measurement at a constant speed in a typical viscometer is a measurement of the instrument viscosity of a ...
... s are mixers designed for mixing materials with laminar mixing processes because the ingredients have such ... The process can be used for high viscosity liquid to liquid mixing or for paste mixing combining liquid and solid ingredients. ... Some products that may require laminar mixing in a high viscosity mixer include putties, chewing gum, and soaps. The end ... ISBN 978-0-471-45144-0. {{cite book}}: ,first= has generic name (help) High Viscosity Mixing - Technical Paper (CS1 errors: ...
The Saybolt universal viscosity test occurs at 100 °F (38 °C), or more recently, 40 °C (104 °F). The Saybolt FUROL viscosity ... Saybolt universal viscosity (SUV), and the related Saybolt FUROL viscosity (SFV), are specific standardised tests producing ... Viscosity By Different Instruments Retrieved 2015-11-27 Online viscosity converter Measurement apparatus Useful Saybolt ... Saybolt universal viscosity is specified by the ASTM D2161. Both tests are considered obsolete to other measures of kinematic ...
In continuum mechanics, time-dependent viscosity is a property of fluids whose viscosity changes as a function of time. The ... the lower its viscosity becomes. A thixotropic fluid is one that takes time to attain viscosity equilibrium when introduced to ... in which viscosity increases with time. Some non-Newtonian pseudoplastic fluids show a time-dependent change in viscosity and a ... The longer they undergo a shearing force, the higher their viscosity becomes, as the microstructure of a rheopectic fluid ...
... is a technique to control viscosity and temperature of fuel oil (FO) for efficient combustion in diesel ... Fuel oil's viscosity strongly depends on the temperature, the higher is the temperature the lower is the viscosity. For optimal ... Viscometer measures the actual viscosity of the fuel, this value is compared with the set point in the controller and the ... Diesel fuel Fuel oil Viscosity Viscometer (Articles lacking sources from May 2012, All articles lacking sources, Engine fuel ...
The Ford viscosity cup is a simple gravity device that permits the timed flow of a known volume of liquid passing through an ... However, the conditions in a simple flow cup are seldom ideal for making true measurements of viscosity. It is important when ... Under ideal conditions, this rate of flow would be proportional to the kinematic viscosity (expressed in stokes and centistokes ... as ambient temperature makes a significant difference to viscosity and thus flow rate. The original Ford Cup was based on ...
Constant viscosity elastic liquids, also known as Boger fluids are elastic fluids with constant viscosity. This creates an ... Since Boger fluids can have constant viscosity, an experiment can be done where the results of the flow rates of a Boger liquid ... Boger fluids are made primarily by adding a small amount of polymer to a Newtonian fluid with a high viscosity, a typical ... He released his first paper on Boger fluids in 1977, titled "A Highly Elastic Constant-Viscosity Fluid", where he described the ...
Here dynamic viscosity is denoted by μ {\displaystyle \mu } and kinematic viscosity by ν {\displaystyle \nu } . The formulas ... increasing thermal agitation of the molecules results in a larger viscosity. Hence, gaseous viscosity increases with ... An everyday example of this viscosity decrease is cooking oil moving more fluidly in a hot frying pan than in a cold one. The ... Viscosity in gases arises from molecules traversing layers of flow and transferring momentum between layers. This transfer of ...
The dense fluid viscosity is thus defined as the viscosity in excess of the dilute gas viscosity. This technique is often used ... but the shear viscosity is by far the most utilized viscosity coefficient. The volume viscosity will now be abandoned, and the ... The dilute gas viscosity contribution to the total viscosity of a fluid will only be important when predicting the viscosity of ... The shear viscosity (or viscosity, in short) of a fluid is a material property that describes the friction between internal ...
... after which viscosity increases). The increase in viscosity for sucrose solutions is particularly dramatic, and explains in ... Viscosity is a material property which describes the resistance of a fluid to shearing flows. It corresponds roughly to the ... The viscosity of an aqueous solution can either increase or decrease with concentration depending on the solute and the range ... Viscosity is measured using a viscometer. Measured values span several orders of magnitude. Of all fluids, gases have the ...
Blood viscosity also increases with increases in red cell aggregability. Blood viscosity is a measure of the resistance of ... Blood viscosity is determined by plasma viscosity, hematocrit (volume fraction of red blood cell, which constitute 99.9% of the ... Plasma's viscosity is determined by water-content and macromolecular components, so these factors that affect blood viscosity ... Anemia can reduce blood viscosity, which may lead to heart failure. Furthermore, elevation of plasma viscosity correlates to ...
"Viscosity". The Physics Hypertextbook. Retrieved 2007-10-02. "3.8: 3.8 Alcohols - Classification and Nomenclature". Chemistry ...
... serum viscosity and plasma viscosity are more frequently measured. Normal plasma viscosity is between 1.4 and 1.8 centipoise ... Serum viscosity and electrophoresis are recommended before and after plasmapheresis in order to correlate viscosity and M-spike ... Hyperviscosity syndrome is a group of symptoms triggered by an increase in the viscosity of the blood. Symptoms of high blood ... "Clinical Viscosity". Mayoclinic. May 1, 1995. Retrieved November 4, 2019.{{cite web}}: CS1 maint: url-status (link) "VISCS ...
Viscosity of a solution as a function of shear rate is given by the power-law equation, η = K γ ˙ n − 1 , {\displaystyle \eta = ... Thus, the viscosity of a shear-thickening fluid is dependent on the shear rate. The presence of suspended particles often ... A dilatant is a non-Newtonian fluid where the shear viscosity increases with applied shear stress. This behavior is only one ... Dilatant behavior occurs when n is greater than 1. Below is a table of viscosity values for some common materials. A suspension ...
The ice line has also been proposed as the site of a pressure bump, however, this requires a steep viscosity transition. If the ... If the magnetic field of the disc is aligned with its angular momentum the Hall effect increases viscosity which can result in ... For some ranges of particle size and gas viscosity outward flow of the gas may occur, reducing its density and further ... Viscosity transitions". Astronomy & Astrophysics. 570: A75. arXiv:1408.1016. Bibcode:2014A&A...570A..75B. doi:10.1051/0004-6361 ...
... one denotes viscosity in this manner: efflux time, Zahn cup number. One can convert efflux time to kinematic viscosity by using ... Large number cup sizes are used when viscosity is high, while low number cup sizes are used when viscosity is low. They are ... Centipoise Stormer viscometer Ford viscosity cup Flow cups "Gardco :: S90 Zahn Viscosity Cups". Ascott Zahn Cups. "Ascott Zahn ... A Zahn cup is a viscosity measurement device widely used in the paint industry. It is commonly a stainless steel cup with a ...
Low viscosity. Nonflammability. Low volatility. Suitable freezing point. In some cases, a simple substitution can give nearly ...
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... 810799. Experimental investigations of stationary and instationary ... Citation: Bartz, W. and Reynolds, T., "Influence of the Effective Viscosity on Bearing Performance," SAE Technical Paper 810799 ... Calculating the effective viscosity and investigating its effects on bearing performance Using Newtonian and non-Newtonian oils ... and friction-Calculating shear rate distribution and mean shear rate using eccentricity and speed-Determining viscosity ...
The IUPAC Compendium of Chemical Terminology
They experience what viscosity means, and also practice using algebra and unit conversions. ... Students calculate the viscosity of various household fluids by measuring the amount of time it takes marble or steel balls to ... Fluids with high viscosity flow more slowly and are harder to move through. What are examples of high-viscosity fluids? (Listen ... Viscosity changes with temperature! Have students measure the viscosity of a fluid at a few different temperatures and graph ...
500 mL and more from our comprehensive selection of Cole-Parmer Viscosity Standards ... Buy Cole-Parmer NIST-Traceable Viscosity Standard, N15000; ... Viscosity79,423 cSt at 68°F; 49,714 cSt at 77°F; 13,994 cSt at ... Calibrated to a precision of ±0.2% of viscosity *Standards are NIST-traceable and certified to ASTM D2162 under ISO/IEC 17025 ... A table on each bottle shows the approximate values for kinematic and Saybolt viscosity. Standards are supplied in 500-mL ...
... the nominal viscosity shall be specified in this formulation. viscosity = VO * K * D **(n-1) where K = consistency index D = ... Nominal viscosity in power law. PAN (Mechanical). (OP). 19 Jan 02 00:12. In ANSYS/FLOTRAN, the nominal viscosity shall be ... VO = nominal viscosity. In my understanding the nominal viscosity should be 1.0 or less. Anyone who use ANSYS/FLOTRAN, please ... viscosity = VO * K * D **(n-1). where. K = consistency index. D = shear rate or cutoff shear rate. n = power. ...
Dispersing additive and viscosity depressant for PVC plastisols: BYK-1165 ...
Viscosity solutions of $(-\Delta)^s u = 0$ in $\Omega $ with non-homogeneous data $u = 1$ in $\mathbb R^n \setminus \Omega$ ... The notion of viscosity solution is based on the comparison principle (an application of the maximum principle), against smooth ... How does one prove that weak solutions are viscosity solutions and vice versa for the problem $$ \begin{cases} -\Delta u = f(x ... The ideas in the paper are standard tools in viscosity solution theory (inf and sup convolutions). Probably it is a good idea ...
The Oil Report - Viscosity: Going Down!. The Oil Report - Viscosity: Going Down! ...
Viscosity OpenVPN OS X Local Root. Viscosity OpenVPN OS X Local Root. Posted Aug 13, 2012. Authored by zx2c4. Viscosity OpenVPN ... began defending Viscosity, another OS X VPN client. They figured, since. # they spent money on Viscosity, surely it would be ... ln -s -f -v /Applications/Viscosity.app/Contents/Resources/ViscosityHelper /tmp/pwn/root. echo [+] Running vulnerable SUID ...
Be the first to review "Automatic Transmission Fluid High Viscosity" Cancel reply. Your email address will not be published. ... FR A5401, A5402, A5403 Wynns Automatic Transmission Fluid High Viscosity SDS. ZWA5401_ZWA5402_ZWA5403 (REV 01) FACT SHEET - ... Wynns® High Viscosity Automatic Transmission Fluid is a Full Synthetic, Multi-Vehicle formulation that meets Dexron® III, ... A5401, A5402, A5403 Wynns Automatic Transmission Fluid High Viscosity SDS. ES A5401, A5402, A5403 Wynns Automatic ...
QCD shear viscosity at (almost) NLO. (Publishers Version). In: Journal of High Energy Physics, 2018 (3), Springer, ISSN 1126- ... We compute the shear viscosity of QCD with matter, including almost all next-to-leading order corrections - that is, ...
Dymax offers adhesives with several viscosity variations that can be used across various substrates and applications. Learn ... Q: "We currently use one of your medical-grade adhesives with a viscosity of 500 cP. We are looking for a higher-viscosity ... An adhesive might have a standard base viscosity of 500 cP but also be available in a T (thick) grade with a viscosity of ... The thixotropic adhesives with gel viscosity allow the material to have a little slump, a minor slump, or no slump at all, ...
Reducing viscosity is a challenge during cold winter months. Temperatures that dip below optimum working levels can cause ... Learn how a cosmetics company uses Powerblankets Coconut Blanket to keep coconut oil at a low viscosity. Consistency is Key... ... Blanket Bucket Heater Drum Heater Drum Warmers Hot Box Oil and Gas Sector Pipe Heater Tank Heater Temperature Control Viscosity ...
The Parlin Viscosity Cup differs from the conventional viscosity cup in that the final determination is established at a ... Parlin Viscosity Cups. Article No. 13753 Parlin Viscosity Cup #3. The Parlin Viscosity Cup has a range of 1 - 4 (7-15000 cs). ... Record as the viscosity time of the material.. *Note in the case of the high viscosity range #4, formation of air bubbles in ... Completely dry the viscosity cup with a lint free cloth. Use a highly volatile solvent for a second cleaning as since any ...
The gist of this comment is that the shear viscosity, if anything, can only lead to an accelerated expansion over sufficiently ... 114 091301 (2105)] the cause of the acceleration of the present Universe has been identified with the shear viscosity of an ... Title: Comment on Accelerating cosmological expansion from shear and bulk viscosity. Authors: Massimo Giovannini ...
... yield value and plastic viscosity. It is shown indirectly by using the viscosity-elasticity analogy that the resulting ... The approach used predicts that changes in aggregate volume concentration give rise to large changes in fluid viscosity, ... INFLUENCE OF AGGREGATE VOLUME CONCENTRATION UPON THE WORKABILITY OF CONCRETE AND SOME PREDICTIONS FROM THE VISCOSITY-ELASTICITY ...
Would it be a good or bad idea to run 3 different viscosities thru the year as seasons change? For the avg Canadian climate of ... I dont know that there is any harm in switching viscosities for the seasons, but you can use a 0W30 or a 5W30 year round. I ... I think a symptom of being bitten by this oil bug is that its just plain fun to know what the different viscosities mean and ... Would it be a good or bad idea to run 3 different viscosities thru the year as seasons change? For the avg Canadian climate of ...
... in the apparent viscosity depending on the nature of the active stresses and the flow-alignment property of the particles, as ... in the apparent viscosity depending on the nature of the active stresses and the flow-alignment property of the particles, as ...
Viscosity. / Hack, H.R.G.K.. Encyclopedia of Engineering Geology. ed. / P. Bobrowsky; B. Marker. Cham, Switzerland : Springer, ... Viscosity. In Bobrowsky P, Marker B, editors, Encyclopedia of Engineering Geology. Cham, Switzerland: Springer. 2018. p. 1-4 ... Hack, H. R. G. K. (2018). Viscosity. In P. Bobrowsky, & B. Marker (Eds.), Encyclopedia of Engineering Geology (pp. 1-4). ... Hack, H.R.G.K. / Viscosity. Encyclopedia of Engineering Geology. editor / P. Bobrowsky ; B. Marker. Cham, Switzerland : ...
Posts about cameos written by James Viscosi
Certified values are provided for kinematic viscosity, dynamic viscosity and density, together with uncertanties of measurement ... Unsure about your viscosity results? Run a reference standard to find out, if youre getting the right numbers. At PSL Rheotek ... PSL Viscosity Reference Standards are suitable for the verification and calibration of glass capillary viscometers, flow cups, ... Viscosity values listed in the tables represent nominal values. Actual values may vary. ...
pounds/inch-hour [lb/in/h] dynamic viscosity conversions. Enter value and select a unit of dynamic viscosity measurement to ... home ≫ convert units of measurements ≫ convert units of dynamic viscosity ≫ convert pounds per inch-hour ... Convert pounds per inch-hour to other units of dynamic viscosity. ...
The boundary layer and its behavior is controlled by its viscosity.... ... Kinematic viscosity (the ratio of the viscosity coefficient to fluid density) determines the diffuse spread of fluid straining ... Table 1: Viscosity of Some Common Fluids. Liquids Temperature (Celsius) Viscosity (centipoise). Acetone 20 0.3200. Benzene 20 ... Viscosity is measured in Newton-second/meter squared and in poise (after J.L.M. Poiseuille--pronounced pwah zoy), 1 poise = 1 ...
Restarted Viscosity , still fails. Rebooted system , still fails. Ready to reinstall Viscosity but really dont want to have to ... Viscosity DNS. Got a problem with Viscosity or need help? Ask here! ... Viscosity on Windows. 1.10.5 (1775). *System can ping / browse to public DNS address ,public DNS name,. System DNS uses local ... Finally, when uninstalling Viscosity youre given the option to keep your settings and connections, so I recommend giving ...
Especcialy the turbulent viscosity contour has been giving me strange results. Does anyone know what might be the problem with ...
... BlueSkys food grade oils and lubricants are listed here by viscosity to help you easily find a ... Viscosity is graded by International Standards Organization Viscosity Grade (ISO VG), the Society of Automotive Engineers (SAE ... By Gear Oil Viscosity Grade * ISO VG 68, AGMA 2, SAE 20wt. Gear Oil ... By Bearing Oil Viscosity Grade * ISO VG 32, SAE 10wt. Bearing Oil ...
... the Hydramotion viscometer measures viscosity at the heart of the fluid as the reaction progresses. ... Whether it is small samples, reaction vessels, or large volume processing, the Hydramotion viscometer measures viscosity at the ... Our products shape modern viscosity measurement. We are always stretching the limits of what is possible. ... we can now get the data we need to tune our mathematical models and correlations and increase the accuracy of our viscosity ...
  • Measure the viscosity of a fluid. (teachengineering.org)
  • Describe a fluid as having "high" or "low" viscosity. (teachengineering.org)
  • Wynn's ® High Viscosity Automatic Transmission Fluid is a Full Synthetic, Multi-Vehicle formulation that meets Dexron® III, Mercon® and Mercon® V specifications. (wynnsusa.com)
  • 114 091301 (2105)] the cause of the acceleration of the present Universe has been identified with the shear viscosity of an imperfect relativistic fluid even in the absence of any bulk viscous contribution. (arxiv.org)
  • The approach used predicts that changes in aggregate volume concentration give rise to large changes in fluid viscosity, yield value and plastic viscosity. (trb.org)
  • In the absence viscosity, a cylinder moving through the air would demonstrate a symmetrical pressure distribution that would not cause drag--viscosity ensures that all shapes moving relative to a fluid produce drag. (wastedspark.com)
  • Such behavior is termed viscosity and stems from the transfer of molecular momentum among flow patterns with different fluid velocities. (wastedspark.com)
  • Whether it is small samples, reaction vessels, or large volume processing, the Hydramotion viscometer measures viscosity at the heart of the fluid as the reaction progresses. (hydramotion.com)
  • Calibrate kinematic and Saybolt viscosity equipment, both automatic and manual. (coleparmer.com)
  • A table on each bottle shows the approximate values for kinematic and Saybolt viscosity. (coleparmer.com)
  • Certified values are provided for kinematic viscosity, dynamic viscosity and density, together with uncertanties of measurement. (psl-rheotek.com)
  • In ANSYS/FLOTRAN, the nominal viscosity shall be specified in this formulation. (eng-tips.com)
  • Release studies demonstrated that the formulation produced with PLGA of higher viscosity revealed a slower drug release rate. (bvsalud.org)
  • This form of Bernoulli's Theorem neglects the very important fact that air has viscosity (cold air being less viscous). (wastedspark.com)
  • When the coal tar pitch is refined into 12 different viscosities, or thicknesses, RT-12 is the most viscous. (cdc.gov)
  • PSL Viscosity Reference Standards are suitable for the verification and calibration of glass capillary viscometers, flow cups, rotational viscometers & Cone and Plate viscometers. (psl-rheotek.com)
  • The gist of this comment is that the shear viscosity, if anything, can only lead to an accelerated expansion over sufficiently small scales well inside the Hubble radius. (arxiv.org)
  • In the presence of an external shear we find an extremely rich variety of phenomena, including an effective reduction (increase) in the apparent viscosity depending on the nature of the active stresses and the flow-alignment property of the particles, as well as more exotic behaviors such as a non-monotonic stress/strain-rate relation and yield stress for large activities. (syr.edu)
  • The boundary layer and its behavior is controlled by its viscosity. (wastedspark.com)
  • Students calculate the viscosity of various household fluids by measuring the amount of time it takes marble or steel balls to fall given distances through the liquids. (teachengineering.org)
  • Through fluids of different viscosities, balls fall at different speeds. (teachengineering.org)
  • Sheared Active Fluids: Thickening, Thinning and Vanishing Viscosity" by Luca Giomi, Tanniemola B. Liverpool et al. (syr.edu)
  • In my understanding the nominal viscosity should be 1.0 or less. (eng-tips.com)
  • Anyone who use ANSYS/FLOTRAN, please advise me about the meaning of nominal viscosity. (eng-tips.com)
  • Viscosity values listed in the tables represent nominal values. (psl-rheotek.com)
  • media density and viscosity and particle size, shape, charge and element of all tiered approaches for toxicity assessment of density, for example. (cdc.gov)
  • Calibrations performed include the measurement of Viscosity Reference Standards in the temperature range -40 to 135 deg. (psl-rheotek.com)
  • Our products shape modern viscosity measurement. (hydramotion.com)
  • Then mount the viscosity cup in in a suitable clamp holder for this purpose and place the receiving cylinder in position so that the distance from the Parlin cup base is 8" above the base of a low form graduate. (gardco.com)
  • Results The statistical data analysis showed that there were no statistically significant differences as regards resistance to torsion of rotary instruments, with changes in level of viscosity of the substance that helps instrumentation. (bvsalud.org)
  • Conclusion Viscosity level of the chemical substance used during root canal preparation does not interfere in resistance to torsion of rotary instruments up to 12 consecutive times of use. (bvsalud.org)
  • Bring the sample to be tested and the Gardco/Parlin viscosity cup to a temperature of 23 ±0.5C (73.4 ±0.9F) (preferably in a constant-temperature room). (gardco.com)
  • Another effect to be considered is that of viscosity, which results from the interaction and grouping of the molecules according to their thermal agitation 2 , which depends on the temperature of the water, turning into a factor that makes displacement in the medium easier or more difficult 6 . (bvsalud.org)
  • The ideas in the paper are standard tools in viscosity solution theory (inf and sup convolutions). (mathoverflow.net)
  • An adhesive might have a standard base viscosity of 500 cP but also be available in a T (thick) grade with a viscosity of approximately 5,000 cP, a VT (very thick) grade with a viscosity of approximately 12,500 cP, and a gel grade with a viscosity of approximately 25,000 cP. (dymax.com)
  • Note in the case of the high viscosity range #4, formation of air bubbles in the viscosity standard after just one test run makes repeat runs inaccurate unless done at another time. (gardco.com)
  • Q: "We currently use one of your medical-grade adhesives with a viscosity of 500 cP. (dymax.com)
  • BlueSky's food grade oils and lubricants are listed here by viscosity to help you easily find a BlueSky product to suit your needs. (blueskylubricants.com)
  • Viscosity is graded by International Standards Organization Viscosity Grade (ISO VG), the Society of Automotive Engineers (SAE), and the American Gear Manufacturers Association (AGMA). (blueskylubricants.com)
  • It is shown indirectly by using the viscosity-elasticity analogy that the resulting equations are in good agreement with experimental results on concrete. (trb.org)
  • Unsure about your viscosity results? (psl-rheotek.com)
  • In this work , a PLGA of low viscosity has been tested and the results obtained were compared with those previously reported by Vega et al. (bvsalud.org)
  • The results revealed long-term physicochemical stability suitability for ophthalmic use, being independent from the polymer viscosity . (bvsalud.org)
  • Group 5: Pulmonary hypertension caused by other diseases or conditions, including sarcoidosis, polycythemia vera (which can lead to increased blood viscosity and, subsequently, pulmonary hypertension), vasculitis, and other disorders. (medscape.com)
  • The Parlin Viscosity Cup has a range of 1 - 4 (7-15000 cs). (gardco.com)
  • Test aerosols included MWFs and simple organic liquid s to provide a range of densities, viscosities, and surface tensions. (cdc.gov)
  • The thixotropic adhesives with gel viscosity allow the material to have a little slump, a minor slump, or no slump at all, enabling them to be dispensed along a ridge or in a groove. (dymax.com)
  • Record as the viscosity time of the material. (gardco.com)
  • Reducing viscosity is a challenge during cold winter months. (powerblanket.com)
  • This is a situation where GC 0w30 would work out very well for him since he could run it in winter when it's extremely cold, and it's 12.2cst at 100c viscosity puts it almost at a 40wt for good protection in the summer when he's running his car at the track. (bobistheoilguy.com)
  • We are looking for a higher-viscosity adhesive and do not want to have to redo biocompatibility testing. (dymax.com)
  • Can you tell me if you have an adhesive that is made of the same materials similar to the product we now use, but with a higher viscosity? (dymax.com)
  • Depending on what option you select at the time of uninstallation they'll either be kept (and reappear when you reinstall Viscosity) or be removed. (sparklabs.com)
  • Effect of polymer viscosity on physicochemical properties and ocular tolerance of FB-loaded PLGA nanospheres. (bvsalud.org)
  • viscosity, reduced red cell deformability, The main objectives of this study were abnormal red cell adhesive properties, en- to assess platelet aggregation patterns and dothelial intimal proliferation, bone marrow levels of PC, PS and AT III in SCA patients or fat embolism and a chronic hypercoagula- in the steady state and in vaso-occlusive ble state [6]. (who.int)
  • A: Dymax offers adhesives with several viscosity variations. (dymax.com)
  • If you use classical solvability of your problem, with $f$ and $g$ sufficiently smooth, then there is a very simple proof that the viscosity solution is unique and agrees with the classical solution. (mathoverflow.net)
  • With this viscometer we can now get the data we need to tune our mathematical models and correlations and increase the accuracy of our viscosity predictions. (hydramotion.com)
  • The notion of viscosity solution is based on the comparison principle (an application of the maximum principle), against smooth sub-/super-solutions. (mathoverflow.net)