Results 231 to 240 of about 502,107 (284)
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Nature, 1970
THE phase behaviour of the nitrogen–methane–ethane system in the vicinity of −255° F has been reported in an earlier communication1. The system has subsequently been studied at lower temperatures by lowering the freezing point of the isopentane bath liquid with propane gas. It was found that a liquid phase inversion took place between the temperatures −
B C, Lu, P, Yu, D P, Poon
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THE phase behaviour of the nitrogen–methane–ethane system in the vicinity of −255° F has been reported in an earlier communication1. The system has subsequently been studied at lower temperatures by lowering the freezing point of the isopentane bath liquid with propane gas. It was found that a liquid phase inversion took place between the temperatures −
B C, Lu, P, Yu, D P, Poon
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Phase Inversion of Ellipsoid-Stabilized Emulsions
Langmuir, 2021The efficacy of anisotropic particles in Pickering emulsion stabilization, attributed to shape-induced capillary interactions, is well-documented in the literature. In this contribution, we show that the surface of hematite ellipsoids can be modified in situ by the addition of oleic acid to effect transitional phase inversion of Pickering emulsions ...
Hemant Kumar +2 more
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Review of Scientific Instruments, 1938
Application of cathode phase inversion previously described is made to several practical circuits including symmetrical cathode-ray oscillograph amplification, high fidelity d.c. amplification, and differential or mixer amplifier operation. The theory of a symmetrical degenerative attenuator modification of the basic circuit is developed and practical ...
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Application of cathode phase inversion previously described is made to several practical circuits including symmetrical cathode-ray oscillograph amplification, high fidelity d.c. amplification, and differential or mixer amplifier operation. The theory of a symmetrical degenerative attenuator modification of the basic circuit is developed and practical ...
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Mixed Phase Inverse Filter And Deconvolution
11th International Congress of the Brazilian Geophysical Society, 2009An important problem in seismic data processing is to improve the temporal resolution and to estimate the white reflectivity series (spiking deconvolution). Minimum phase filter is normally applied like conventional procedure in the deconvolution of seismic data. The deconvolution sometimes produces a poor result because the natural wavelet estimate is
L Dorian Caraballo, Milton José Porsani
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Phase inversion sulfonated polysulfone membranes
Journal of Membrane Science, 1985Abstract The use of two nonsolvents serving as a cosolvent system, replacing the traditional volatile solvent plus less volatile nonsolvent system, in the formation of asymmetric phase inversion membranes was investigated. Specifically, asymmetric membranes of sulfonated polysulfone were cast from a cosolvent system consisting of tetrahydrofuran and ...
Kevin E. Kinzer +5 more
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Ocean optics phase-function inverse equations
Applied Optics, 2002Equations are obtained for determining the Legendre polynomial expansion coefficients of the phase function from angular or angular-spatial integrals of the radiance measured either in water or at the surface.
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Miniemulsification by catastrophic phase inversion
Chemical Engineering Journal, 2012Abstract We present an alternative method for the preparation of high solids content, water-borne latex products from a combination of catastrophic phase inversion (CPI) and miniemulsification. Miniemulsions are commonly prepared by the direct emulsification of a monomer in water and subsequent miniemulsification using a high-shear technique.
Scott B. Campbell +4 more
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Porous polycarbonate phase-inversion membranes
Journal of Membrane Science, 1991Abstract This paper presents a method of preparation of phase-inversion porous polycarbonate membranes as well as experimental data on their structure and transport and separation properties. From a casting solution containing 8% of polycarbonate in a mixture of dioxane and dimethylformamide (mass ratio 3: 2), it is possible to obtain porous ...
Michal Bodzek, Jolanta Bohdziewicz
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Phase Inversion in Two-Phase Liquid Systems
Collection of Czechoslovak Chemical Communications, 1992New data on critical holdups of dispersed phase were measured at which the phase inversion took place. The systems studied differed in the ratio of phase viscosities and interfacial tension. A weak dependence was found of critical holdups on the impeller revolutions and on the material contactor; on the contrary, a considerable effect of viscosity was ...
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Inverse 2D phase change problem
1994Numerical resolution of a 2D inverse phase change problem has been proposed. Two different methods have been tested. The first one use a sequential minimisation procedure, on a sliding time horizon. The second one is based on the transformation of the initial non linear phase change problem in a linear one, which is solved by linear quadratic optimal ...
C. Bénard +3 more
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