Results 301 to 310 of about 1,292,244 (321)

Compressibility of Solids and Liquids at High Pressures

Journal of Applied Physics, 1963
An equation for compressibility (identical in form to the Tait equation) derived previously from the virial theorem and the Fermi—Thomas atomic model is modified on the assumption that one of its parameters (αβ0) is reciprocally related to the internal pressure when the cohesive energy density is assumed to be an essential part of the internal pressure.
Melvin A. Cook, Leo A. Rogers
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High-pressured liquid chromatography of carotenoids

Journal of Chromatography A, 1978
Abstract The potential of high-pressure liquid chromatography (HPLC) for separation of carotenoids on silica has been studied with selected model carotenoids (carotenes, diols, cis—trans isomers and diastereoisomers) in comparison with conventional thin-layer chromatography and circular paper techniques.
Anne Fiksdahl, Julius T. Mortensen, Synnøve Liaaen-Jensen   +2 more
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ChemInform Abstract: LIQUID‐LIQUID PARTITION COEFFICIENTS BY HIGH‐PRESSURE LIQUID CHROMATOGRAPHY

Chemischer Informationsdienst, 1975
Lipid-water partition values can be rapidly and reliably measured by high-pressure liquid chromatography (HPLC) on bonded octadecylsialne supports. This method has been developed and applied to a family of hypotensive triaminopyrimidine 3-oxides. The measured column retention values for this class of compounds correlate well with the values calculated ...
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Viscosity of liquid Fe at high pressure

Physical Review B, 2002
Synchrotron x-ray radiography has been used to measure the viscosity of pure liquid Fe at high pressure and temperature in a large volume press. A probe sphere rising through liquid Fe at high pressure and temperature is imaged, in situ, allowing for the derivation of sample viscosity through a modified form of Stokes' equation.
Stephen R. Sutton, Mark L. Rivers, M.D. Rutter, Hongjian Liu, Yanbin Wang, Takeyuki Uchida, Richard A. Secco   +6 more
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Raman spectroscopy in liquids at high pressure

Chemical Physics Letters, 1973
Abstract The pressure dependence of the reorientational correlation function for chloroform has been measured by analysis of the Raman 3019 cm − 1 A 1 CH stretching lineshape at 1, 1000, and 2000 bar and 23°C. These reorientational correlation functions were obtained using the method of spectral Fourier deconvolution introduced by Bratos.
J. H. Campbell, Jiri Jonas
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Refractive index of liquids at high pressures

Critical Reviews in Solid State and Materials Sciences, 1983
Abstract In this age of laser technology, the importance of studies on piezo– and elasto‐optic properties of liquids cannot be over-emphasized. In many applications such as acousto‐optic modulators, acoustic probes, high speed optical scanners and deflectors, etc., in the field of communications, a precise knowledge of the elasto‐optic coefficient of ...
K. Vedam, George A. Samara
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High-pressure liquid chromatography on triacetylcellulose

Journal of Chromatography A, 1983
Abstract Microcrystalline triacetylcellulose ( d p = 10–20 μm) was used for analytical liquid chromatography at pressures around 50 bar. 1,3,5-Tri- tert .-butylbenzene is proposed as a compound which is not retained on this sorbent. Thus, reliable information about porosity, linear flow-rates, u , and relative retentions become available for the ...
Karl-Heinz Rimböck, Albrecht Mannschreck, H. Koller   +2 more
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On shear stresses in liquids at high pressure

British Journal of Applied Physics, 1965
A method has been developed by which experimental determinations may be made of the pressure and temperature limits of hydrostatic conditions in any liquid pressure transmitting media. Some experimental results for pentane, H62/56 oil and a polyphenyl ether are presented, and pressure-temperature diagrams are drawn for the last two.
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High-Pressure Gas-to-Liquid Transducer

Review of Scientific Instruments, 1958
A tramsduncer is described which can withstand differential overpressure of 20,000 psi in either direction, while retaining high sensitivity during balance. (A.C.)
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High Pressure Vapor-Liquid Equilibrium

1993
We saw in the previous Chapter, Section 13.4, that high pressure vapor-liquid equilibrium (VLE) involves systems where some, or all, components have low boiling point temperatures at atmospheric pressure, typically mixtures of hydrocarbons — alone or with some inorganic gases: N2, CO2, CO, etc.
Dimitrios P. Tassios, Dimitrios P. Tassios   +1 more
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