Looking for online definition of specific viscosity in the Medical Dictionary? specific viscosity explanation free. What is specific viscosity? Meaning of specific viscosity medical term. What does specific viscosity mean?

It is unclear whether it is best to use high-viscosity or low-viscosity cement for fixation of total hip replacement (THR) femoral components. This study examines the influence of cement viscosity on the migration of the Exeter femoral component using roentgen stereophotogrammetric analysis (RSA). Simplex, CMW1 and CMW3 G cements were examined in a total of 46 patients over a 12-month period. The overall pattern of migration for all cohorts was one of subsidence and rotation into valgus. There was no significant difference in any aspect of migration between the groups. In vitro studies demonstrate that low-viscosity cement forms a more stable bone-cement interface. Several groups have examined the in vivo effect of cement viscosity on stem longevity with conflicting results. For a polished, tapered implant that is designed to subside, cement viscosity does not influence the 1-year migration, and it is therefore unlikely to affect long-term outcome.

Everbuild Industrial Grade Superglue GP Medium Viscosity 50g CYN50 medium viscosity flash setting industrial adhesive based on advanced cyanoacrylate technology. Benefits Flash setting formulation, Bonds to most non porous surfaces in seconds. Fills gaps up to 0.1mm Single component adhesive 100% solvent free Economical in use 5 to 15 seconds

LGEM 2 SKF High Viscosity Bearing Grease with Solid Lubricants SKF LGEM 2 is a high viscosity, mineral oil based grease using a lithium soap. Its content of molybdenum disulphide and graphite provides extra protection for harsh applications subjected to high .... ...

LGEV 2 SKF Extremely High Viscosity Bearing Grease with Solid Lubricants 420ml Cartridge (SKF Bearing Grease) at BearingBoys - 16.04 exc VAT. Colour: Black, Base Oil Type: Mineral, Operating Temp: -10 to +120 C, Type: High Viscosity, Pack Size: 420ml Cartridge,

The invention relates to grease compositions containing high viscosity index polyalphaolefins (HVI-PAO) and polyurea thickeners. The use of HVI-PAOs and polyurea thickeners in a bi-modal base stock grease application provides favorable frictional properties and improved overall performance.

A process for the production of a terminal-blocked aromatic polycarbonate by melt-polycondensing an aromatic dihydroxy compound and diphenylcarbonate, the process comprising adding a specific carbonate or carboxylic ester after a polycarbonate formed has an intrinsic viscosity of at least 0.3 dl/g, to form a terminal-blocked polycarbonate having an intrinsic viscosity which is greater than, or smaller than, the intrinsic viscosity of the polycarbonate formed before the addition by 0.1 dl/g at the most; and a process for the production of a polycarbonate having an increased intrinsic viscosity by melt-polycondensing an aromatic dihydroxy compound and diphenylcarbonate, the process comprising adding a specific diaryl carbonate or dicarboxylic diaryl ester after a polycarbonate formed has an intrinsic viscosity of at least 0.3 dl/g, to form a polycarbonate having an intrinsic viscosity greater than the intrinsic viscosity of the polycarbonate formed

2014 AIP Publishing LLC. The oscillations of free-falling drops with size range from pl to μl have been used to measure the transient shear viscosity and the dynamic surface tension of shear-thinning fluids on the timescale of 10 -5 -10 -2 s. The method is first validated with Newtonian fluids. For a given surface tension, the lower and upper limits for accurate measurement of the viscosity are determined as a function of drop size. The dynamic properties of two types of shear-thinning fluids with varying viscoelasticity are reported: aqueous suspensions of the antifungal drug griseofulvin and of the organic light-emitting diode material poly( 3,4-ethylenedioxythiophene): polystyrene-sulphonate. In both cases, the free-falling drop retains the high-shear viscosity.. ...

Posted in: Radio Control. ✦ Silicone oil is tasteless and water clear. Lube oils can be multigrade or monograde where multigrade oils fulfills two viscosity specifications. Methyl-silicone oil not only has density similar to that of the precursor, but also has high steam point, which determines its low viscosity and thermal stability in high polymerization temperature. Silicone Rotational Viscosity Paragon ISO 17025 / ISO 17034 certified silicone rotational viscosity standards are specifically formulated for use with equipment with minimal temperature control. *The marks followed by an asterisk (*) are trademarks of Momentive Performance Materials Inc. See how all of our 47 brands inspire new products. personalized web experience. By clicking Accept All Cookies, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Temperature °C. Posted by AParsons on December 4, 2014. Silicone oil is a low viscosity, liquid ...

Starbond EM-150, Medium Viscosity, Medium Cure, Broad Use, Clear Cyanoacrylate Adhesive, 16oz, Includes 2 FREE empty 2oz application bottles with Tips

DIN EN ISO 3104 : Petroleum products - Determination of kinematic viscosity and calculation of dynamic viscosity of transparent and opaque liquids (includes Corrigendum AC:1999) (ISO 3104:1994 + Cor 1:1997)

Buy High Viscosity CMC Carboxymethyl Cellulose HS Code 35051000 Papermaking Sizing direct from CMC Carboxymethyl Cellulose of China Factory that provide Latest CMC Carboxymethyl Cellulose - maoyuanchemical.

The Effect of Interfacial Viscosity on the Kinetics of Formation of Silver Nanoparticles Using Water-in-Oil Microemulsions as Nanoreactors - Volume 704 - D.O. Shah, R.P. Bagwe, B.S. Parmar

Bdellovibrio bacteriovorus HD100 is a highly motile predatory bacterium that consumes other Gram-negative bacteria for its sustenance. Here, we describe the impacts the media viscosity has both on the motility of predator and its attack rates. Experiments performed in polyethylene glycol (PEG) solutions, a linear polymer, found a viscosity of 10 mPa s (5% PEG) negatively impacted predation over a 24-h period. When the viscosity was increased to 27 mPa s (10% PEG), predation was nearly abolished. Tests with three other B. bacteriovorus strains, i.e., 109J and two natural isolates, found identical results. Short-term (2-h) experiments, however, found attack rates were improved in 1% PEG, which had a viscosity of 5.4 mPa s, using bioluminescent prey and their viabilities. In contrast, when experiments were performed in dextran, a branched polymer, no increase in predation was seen even though the viscosity was a comparable 5.1 mPa s. The enhanced attack rates in this solution coincided with a 31% ...

Buy High Viscosity Of Carboxymethyl Cellulose Used In Textile Degree CMC direct from Textile Sizing Agent of China Factory that provide Latest Textile Sizing Agent - maoyuanchemical.

These oval gear flowmeters without displays are ideal for use in food, petroleum, pharmaceutical, or waste treatment applications. They can handle a wide range of fluid viscosities with exceptional accuracy and durability, without the need to recalibrate. Low pressure drop even allows for gravity flow application. Meter design minimizes the number of wearable and replaceable parts, extending product life. All models have NEMA 13 (IP54) enclosures ...

Abstract. Polymer flood is good method to recovery heavy oil reservoirs, while the polymer flood project usually takes multi-years with great investment. So lab evaluations are essential prior to field-scale application, and a fast and effective method to evaluate EOR potential is desired. The experiments of polymer flooding of heavy oils in sand-packs are designed, and made by using polymer solutions with various viscosities. Polymer flood tests for heavy oils with different viscosities are conduced, and the polymer flood potential for 1,860 mPa.s heavy oil is estimated.. For heavy oils with different viscosities, the polymer viscosity-sensitive ranges are different, which greatly restricts its application. By choosing the oil-water mobility ratio at the end of waterflood as a normalization factor, the scattered S-shaped curves coincide into a single normalized curve. Based on the normalized relationship between tertiary recovery of polymer flood and oil-water mobility ratio, the potential of ...

A cellular medium is highly viscoelastic in nature. To understand the viscoelastic nature of a medium, we have taken the first step at developing a new simple approach to quantitatively measure the viscosity of a water-glycerol mixture medium using the optical tweezers technique. Also further theoretical approaches have been developed to model the viscosity behavior. In our optical tweezers system, the position of a trapped bead was measured using a position sensing diode with 40kHz acquisition rate. By using a Lorentzian fit to the Power Spectrum of the position signal, the corner frequency was determined. At constant laser power and at constant bead radius, the trap stiffness is assumed to remain the same for small change in volume concentration of glycerol in a water-glycerol medium, indicating that the change in corner frequency is solely dependent on the medium. Hence, we determined the viscosity of the water-glycerol medium by comparing to the corner frequency of a known viscosity substance.

A lube oil composition that inhibits lubricant viscosity increase and dispersency decrease is described. The composition includes an oil of lubricating viscosity and a mixture of specified functionalized derivatives of pentaerythritol tetrakis 3-mercaptopropionate and amine antioxidants.

Quality High Viscosity Natural Polysaccharide Sodium Citrate Dihydrate for Food Additive for sale - buy cheap Sodium Citrate Dihydrate from aginatethickener manufacturer.

[Carboxy Methyl Cellulose Sodium Salt High Viscosity][027929] 9004-32-4 | Buy & Get Information for your research needs by CDH, India. Find MSDS or SDS, COA, Data Sheet and other information of high quality specialty chemicals manufacturer, supplier, exporter.

Renoil High Viscosity Oils reduce oil mobility in polymer packaging, in medical use and perform well in extremely low temperatures for TPE applications.

Pebeo High Viscosity Studio Acrylic is the ultimate mixed media acrylic! Vivid, deep, and richly pigmented, it can be combined with all your favorite Pebeo specialty paints (Vitrail, Fantasy Moon, Fantasy Prisme, and Porcelaine) to create amazing effects on canvas, board, wood, metal, and more.

Need Liquid Adhesive & other medical supplies? Head to Medex Supply and check out the Dermabond Topical Skin Adhesive 2-Octyl Cyanoacrylate, High Viscosity ProPen 0.5ml, Each

There is still considerable controversy regarding the influence of blood viscosity upon CBF. We have measured CBF with microspheres in 23 cats. Autoregulation was disturbed in the left caudate nucleus by microsurgical occlusion of the left middle cerebral artery. Induced hypertension or hypotension was used and i.v. mannitol (1 g/kg) administered. In all cats blood viscosity decreased an average of 16% at 15 minutes and, in 16 cats, increased 10% at 75 minutes post-mannitol. CBF in the right caudate was 79 +/- 6 ml/100g/min, in the left 38 +/- 6 (p less than 0.001). Only minor changes of CBF occurred in areas with presumed normal autoregulation, including the right caudate, in conjunction with pressure or viscosity changes. In the left caudate CBF decreased 21% with hypotension and 18% with higher viscosity, more than on the right (p less than 0.01 and p less than 0.2, respectively). CBF increased in the left caudate 56% with hypertension and 47% with lower viscosity, again much more than on the ...

Engine bearings operate mostly in a hydrodynamic regime of lubrication, in which the bearing surface is separated from the journal surface by pressurized oil [1]. Parameters of motor oil determine stability of hydrodynamic lubrication, losses of power due to friction, distribution of oil pressure over the bearing surface. The most critical parameter of motor oil is its viscosity. Unfortunately viscosity of motor oils is strongly dependent on temperature. Therefore engine operate differently at different ambient temperatures particularly in cool conditions. The principal geometrical parameter of engine bearing is oil clearance. It is tightly associated with oil viscosity. Generally speaking the greater clearance the more viscose oil should be used. Engine designer have been trying to minimize the losses of power due to friction therefore oil viscosity in modern engine is commonly lower than that in old designs. Particularly such trend is noticeable in racing engines in which the engine builders ...

The hydrodynamic and thermal characteristics of electroosmotic and pressure-driven flows of power-law fluids are examined in a semicircular microchannel under the constant wall heat flux condition. For sufficiently large values of the electrokinetic radius, the Debye length is thin; the active flow within the electric double layer (EDL) drags the rest of the liquid due to frictional forces arising from the fluid viscosity, and consequently a plug-like velocity profile is attained. The velocity ratio can affect the pure electrokinetic flow as well as the flow rate depending on the applied pressure gradient direction. Since the effective viscosity of shear-thinning fluids near the wall is quite small compared to the shear-thickening fluids, the former exhibits higher dimensionless velocities than the later close to the wall; the reverse is true at the middle section. Poiseuille number increases with increasing the flow behavior index and/or the electrokinetic radius. Due to the comparatively ...

In this work, the fluid flow over a 2D backward-facing step is analyzed in order to provide a case study for the use of different models for the blood dynamic viscosity in COMSOL Multiphysics. Three non-Newtonian models, as well as the Newtonian model are used to study the shear stresses and the reattachment length as a function of the fluid speed. The non-Newtonian models used in this study are the Carreau model, the power law model, and one of its variants, the Walburn-Schneck model. For the models studied, a transition from a Newtonian to a non-Newtonian behavior is observed as the center line speed is decreased.. ...

Manuella Cerbelaud, Aleena Maria Laganapan, Tapio Ala-Nissila, Riccardo Ferrando, Arnaud Videcoq. Shear viscosity in hard-sphere and adhesive colloidal suspensions with reverse non-equilibrium molecular dynamics. Soft Matter, Royal Society of Chemistry, 2017, 13 (21), pp.3909 - 3917. ⟨10.1039/c7sm00441a⟩. ⟨hal-01529935⟩ ...

Liquid micro-droplet formation is relevant to several applications where the deposition of a controlled volume of fluid on a specific location is required and inkjet printing is one of the most well known. Several methods to obtain this objective, such as Continuous Ink Jet (CIJ), Drop on Demand (DoD) or Bubble Jet, create a ligament of fluid that breaks due to Rayleigh instabilities. Both surface tension and viscosity play an important role and, as a consequence, the fluid rheology is of tremendous importance. However, the scientific literature lacks information, mainly because of the timescale associated with the process (few microseconds), the complexity of the jetting process and the low viscosity of the liquids used. Inkjet fluids are low viscosity (1 to 20 mPa.s typically) complex fluids constituted of several components (including polymer, pigment or die) that induce a low viscoelastic behaviour that manifests in the ms domain or below. This viscoelasticity affects the way drop form at ...

The thickness of pharmaceutical liquids, like cough syrup, plays a major role in quality control. Liquids with a high viscosity flow more slowly than low-viscosity liquids. Cough syrup needs a high viscosity for several reasons. One reason is that it has to stay on the spoon for medication. Furthermore, cough syrup should flow slowly through the digestive tract to coat the surface of the throat and not flow off. Only cough syrup, which stays long on the affected area in the throat, has a soothing effect by increasing the moisture.. ...

Experimental data on the effect of plastic deformation on the carbon internal friction peak in austenitic steels (Finkelshtein-Rosin peak) were analyzed and it was shown that the general trend is that the peak height increases whereas the peak temperature is rather stable, or decreases. To explain this effect a computer simulation of the temperature dependence of the internal friction was performed using a model crystal without a dislocation or containing one screw dislocation taking into account long-range C-C and C-Ni interactions and C-dislocation interactions. The C-dislocation interaction was calculated by the so-called hybrid method. It was shown that the elastic field around a dislocation enhances the asymmetry of the displacements of metal atoms neighbouring interstitial atoms and, thus, increases the height of the peak. On the other hand, the weak energy for carbon-dislocation interaction in the f.c.c. lattice does not lead to significant changes in carbon atom energies. Thus, the ...

Viscosity can control various magmatic processes and varies by orders of magnitude as a function of temperature, composition and dissolved volatiles. There is no predictive model for the viscosity of dacitic liquids, which are involved in explosive volcanism. This study investigated the effects of variable composition and water content on dacitic liquids. Ten dacitic glasses were synthesized with varying degrees of polymerization. Hydrous glasses were made with water contents varying up to 5 wt.%. The viscosity was measured using parallel plate and concentric cylinder viscometry. TVF equations, of the form log [eta] = A + B/(T-C), allow prediction of hydrous liquid viscosities at magmatic temperatures. At 1100K, liquids containing 1 and 5 wt.% dissolved water are about 5 and 7 orders of magnitude less viscous than anhydrous liquids, respectively. The results demonstrate that varying polymerization state of the liquids has a smaller effect on viscosity than water content and temperature ...

thickener for dolomite in namibiaHighefficiency thickener (deep cone, lead tailing thickener and (dolomite and quartz Central Region of Namibia Namibia Thickener upgrading at Mupane Ltd deep c&deep cone thickener for quartz in namibia

Boost.Units - A C++ library for zero-overhead dimensional analysis and // unit/quantity manipulation and conversion // // Copyright (C) 2003-2008 Matthias Christian Schabel // Copyright (C) 2008 Steven Watanabe // // Distributed under the Boost Software License, Version 1.0. (See // accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) #ifndef BOOST_UNITS_CGS_DYNAMIC_VISCOSITY_HPP #define BOOST_UNITS_CGS_DYNAMIC_VISCOSITY_HPP #include ,boost/units/systems/cgs/base.hpp, #include ,boost/units/physical_dimensions/dynamic_viscosity.hpp, namespace boost { namespace units { namespace cgs { typedef unit,dynamic_viscosity_dimension,cgs::system, dynamic_viscosity; BOOST_UNITS_STATIC_CONSTANT(poise,dynamic_viscosity); } // namespace cgs } // namespace units } // namespace boost #endif // BOOST_UNITS_CGS_DYNAMIC_VISCOSITY_HPP ...

0010]A planar elongational viscosity measuring apparatus according to the fourth aspect of the invention comprises: pushing means for pushing a bomb-shell like bob having a narrow bottom surface part into a container, in which a fluid to be subjected to viscosity measurement is filled, from the bottom surface part; measurement means for measuring counterforce applied to the bomb-shell like bob from the fluid when the bomb-shell like bob is pushed into the fluid; stress calculation means for calculating force that the fluid pushes up the bomb-shell like bob based on an external size of the bomb-shell like bob, and calculating planar elongation stress generated in a space between the bomb-shell like bob and the container based on the calculated push-up force, the counterforce, and a cross-sectional area of the space; and viscosity calculation means for calculating a planar elongational viscosity by dividing the planar elongation stress by a fluid speed increment rate in the space calculated based ...

In this work, non-Newtonian effects on Low-Density Lipoprotein (LDL) transport across an artery are analyzed with a multi-layer model. Four rheological models (Carreau, Carreau-Yasuda, power-law and Newtonian) are used for the blood flow through the lumen. For the non-Newtonian cases, the arterial wall is modeled with a generalized momentum equation. Convection-diffusion equation is used for the LDL transport through the lumen, while Staverman-Kedem-Katchalsky, combined with porous media equations, are used for the LDL transport through the wall. Results are presented in terms of filtration velocity, Wall Shear Stresses (WSS) and concentration profiles. It is shown that non-Newtonian effects on mass transport are negligible for a healthy intramural pressure value. Non-Newtonian effects increase slightly with intramural pressure, but Newtonian assumption can still be considered reliable. Effects of arterial size are also analyzed, showing that Newtonian assumption can be considered valid for both ...

This work explores the possibility of exploiting structure-property relationships to manufacture tailor-made polymers with target end-use properties. A novel framework which aims to improve upon current industrial practices in polymerization process and product quality control is proposed. The strong inter-relationship between the molecular architecture and rheological properties of polymers is the basis of this framework. The melt index is one of the most commonly used industrial measures of a polymers processibilty. However, this single-point non-Newtonian viscosity is inadequate to accurately reflect the polymer melts flow behavior. This justifies monitoring the entire viscosity-shear rate behavior during the polymerization stage. In addition, the crucial role played by the polymer melts elastic characteristics is not reflected in its shear viscosity and so elasticity meaurements are also warranted. In this study, rheological models available in the open literature are utillized to ...

Many uncommon gas flow phenomena in nanopores have been found by experiments. Besides that, another special characteristic of gas flow at nanopore is that gass number density shows uneven distribution. From the point of molecular motion, gass number density would affect its dynamic viscosity, so its very necessary to study whether the gass viscosity is uneven. Due to the gas densitys fluctuation usually takes place near the wall surface so the present paper focuses on the gass viscosity near the wall of nanopore. Our molecular dynamics simulation results indicate that the gass viscosity in the region near the wall surface isnt a constant and fluctuates greatly. The profiles of gass viscosity and gas number density coincide very well.. Copyright © 2013 by ASME ...

Various scaling methods such as relative viscosity, Peclet and Reynolds scaling were used to find the best scaling law. Scaling and modeling of the flow curves of various model emulsions consist of Tragacanth Gum (TG) (0.5, 1 % wt), Oleic acid (5, 10% v/v) and WPI (2, 4 % wt) were investigated and the best models were selected. As these emulsions are non-Newtonian, they do not obey the usual, simple scaling laws. When the apparent viscosity is reduced to relative viscosity of the medium at zero shear rate, a distinct reduced flow curve is obtained, regardless of TG, oleic acid and WPI concentrations. This will lead to a technique of simplifying complex non-Newtonian flow curves and therefore predicting the rheological flow curves and fluid mechanics when different modifiers are added to food emulsions. The flow behavior of all samples was successfully modeled with Cross, power law and Ellis models and power law model was found as the better model to describe the flow behavior of dispersions.

Hypromellose solutions were patented as a semisynthetic substitute for tear-film.[8] Its molecular structure is predicated upon a base celluloid compound that is highly water-soluble. Post-application, celluloid attributes of good water solubility reportedly aid in visual clarity. When applied, a hypromellose solution acts to swell and absorb water, thereby expanding the thickness of the tear-film. Hypromellose augmentation therefore results in extended lubricant time presence on the cornea, which theoretically results in decreased eye irritation, especially in dry climates, home, or work environments.[9] On a molecular level, this polymer contains beta-linked D-glucose units that remain metabolically intact for days to weeks. On a manufacturing note, since hypromellose is a vegetarian substitute for gelatin, it is slightly more expensive to produce due to semisynthetic manufacturing processes. Aside from its widespread commercial and retail availability over the counter in a variety of ...

A simple and very accurate method for measuring the viscosity of liquids is presented. A vibrating lead zirconate titanate (PZT) ceramic polycrystalline resonator is totally immersed in a liquid and the oscillation behavior is studied both analytically and experimentally. The vibrating ceramic generates a shear wave traveling in the surrounding fluid normal to the surface of the resonator with heavy damping. The PZT is modeled as a vibrating thin plate. The resulting one-dimensional governing equation of motion, which includes the effect of damping, is solved with the appropriate damped boundary conditions using impedance methods. The resonance frequency of a PZT immersed in a fluid is shown to be a function of the PZT parameters and the product of the fluid density and viscosity. Fluid loading is shown to lower the resonance frequency of the ceramic and both diminish and broaden the impedance plot near resonance. Unlike previous methods utilizing crystal shear-mode resonators, this method is ...

We present a method to perform in situ microrheological measurements on monolayers of soft materials undergoing viscoelastic transitions under compression. Using the combination of a Langmuir trough mounted on the inverted microscope stage of a laser scanning confocal microscope we track the motion of individual fluorescent quantum dots partly dispersed in monolayers spread at the air-water interface. From the calculated mean square displacement of the probe particles and extending a well established scheme of the generalized Stokes-Einstein relation in bulk to the interface we arrive at the viscoelastic modulus for the respective monolayers as a function of surface density. Measurements on monolayers of glassy as well as nonglassy polymers and a standard fatty acid clearly show sensitivity of our technique to subtle variations, in the viscoelastic properties of the highly confined materials under compression. Evidence for possible spatial variations of such viscoelastic properties at a given ...

China Shirataki Konjac Powder Food Thickeners for Jelly Food, Find details about China Food Thickener, Konjac Flour from Shirataki Konjac Powder Food Thickeners for Jelly Food - Sichuan Sentaiyuan Biotechnology Co., Ltd.

Iron ore concentrator lamella thickener for saleIron ore concentrator layout praktijktamasnlIron ore concentrator middlings for sale belgium samarco iron concentrator 28 nov 2016 crusher and mill iron ore concentrator layout the flowsheet design ball mill with an open circuit england fortuneglobal industrial used open circuit ball mill for.. Iron ore concentrator spiral chute for sale specialSpiral concentrator spiral chute for iron oreSpiral concentrator spiral chute for iron ore environmental protection energysaving low cost production capacity 1976th metal powder dryer is a kind of drying equipment for metal powders micro powder and other powder materials.. Iron ore processing for the blast furnaceCreating steel from low-grade iron ore requires a long process of mining crushing separatingNational steel pellet companys plant is capable of producing 5Concentrator building for grinding separating and.. Mining concentrator ore thickener machine for mineral processing thickeners or thickener ...

Quasi-static and dynamic compression experiments were performed to study the influence of liquid nitrile rubber (LNBR) on the mechanical properties of epoxy resin. The quasi-static experiments were conducted by an electronic universal machine under strain rates of 0.0001/s and 0.001/s, while a Split Hopkinson Pressure Bar (SHPB) system was adopted to perform the dynamic tests for strain rates up to 5600/s. The standard Zhu-Wang-Tang (ZWT) nonlinear viscoelastic model was chosen to predict the elastic behavior of LNBR/epoxy composites under a wide range of strain rates. After some necessary derivation and data fitting, a set of model parameters for the tested materials were finally obtained. Meanwhile, the incremented form of the ZWT nonlinear viscoelastic model were deduced and implemented into the user material program of LS-DYNA. A simulation-test contrast had been performed to verify the validity and feasibility of the algorithm. The results showed that the viscoelastic behavior of epoxy resin can be

Twenty-two new bifunctional sulfones containing ester, ether and carbonate moieties have been synthesized in the present work. Their physicochemical properties (dynamic viscosity, ionic conductivity in the presence of lithium bis-trifluoromethanesulfonimidate (LiTFSI), boiling and melting points) and their anodic stability have been investigated. Major drawbacks for the use of these sulfones in Lithium Batteries (LiBs) are their high viscosities and high melting points. Nevertheless, these solvents exhibit high anodic stability at platinum, glassy carbon and NMC (LiNi1/3Mn1/3Co1/3) electrodes and their ionic conductivities in the presence of LiTFSI remain high enough to envisage their use in LiBs despite their high viscosities. In particular, 3-methoxytetrahydrothiophene 1,1-dioxide (MESL) is the most interesting one among the 22 synthesized sulfones, because MESL exhibits an oxidation potential at a NMC cathode in the presence of LiTFSI of 4.9 V vs. Li/Li + , an ionic conductivity equal to 1 mS.cm-1 ,

This paper describes a procedure, based on Tikhonov regularization, for obtaining the shear rate function or equivalently the viscosity function of blood from Couette viscometry data. For data sets that include points where the sample in the annulus is partially sheared the yield stress of blood will also be obtained. For data sets that do not contain partially sheared points, provided the shear stress is sufficiently low, a different method of estimating the yield stress is proposed. Both the shear rate function and yield stress obtained in this investigation are independent of any rheological model of blood. This procedure is applied to a large set of Couette viscometer data taken from the literature. Results in the form of shear rate and viscosity functions and yield stress are presented for a wide range of hematocrits and are compared against those reported by the originators of the data and against independently measured shear properties of blood.. ...

The structural behavior of a new connection design, the embedded adhesive connection, used for laminated glass plates is investigated. The connection consists of an aluminum plate encapsulated in-between two adjacent triple layered laminated glass plates. Fastening between glass and aluminum is ensured using a structural adhesive. At first, the elastic and viscoelastic material properties of the adhesive are identified where the influence of load-rate and failure properties are also examined. Through an inverse analysis using the finite element method, the experimental observations are replicated to identify a material model of the adhesive. The material model consists of an elastic and linear viscoelastic formulation suitable for a numerical implementation of the material. Based on two relevant load cases, out-of-plane bending and in-plane shear, the connection performance is investigated both for short and long-term durations. Using the finite element method, the connection experiments are ...

The industry study on global Capillary Rheometer market provides comprehensive review of ongoing market trends, drivers, opportunities, challenges and issues, latest news and events including Capillary Rheometer strategic corporate developments and Capillary Rheometer product innovations. Overall assessments of the global Capillary Rheometer market share from different countries and regions is covered in the report. The competitive landscaping mapping of the current trends are also included in Capillary Rheometer report.. Global Capillary Rheometer Market analyzed the Industry region, including the product price, profit, capacity, production, capacity utilization, supply, demand and Capillary Rheometer industry growth rate etc. Furthermore, Capillary Rheometer report features tables and figures that render a clear perspective of the Capillary Rheometer industry. In the end, the Capillary Rheometer market report introduced investment feasibility analysis, and investment return analysis to ...