scholarly journals FLOODING IN PERFORATED-PLATE PULSED EXTRACTION COLUMNS: A SURVEY OF REPORTED EXPERIMENTAL DATA AND CORRELATIONS, AND THE PRESENTATION OF NEW CORRELATIONS WITH PHYSICAL PROPERTIES, OPERATING VARABLES, AND COLUMN GEOMETRY

1966 ◽  
Author(s):  
W Groenier ◽  
R McAllister ◽  
A Ryon
2008 ◽  
Vol 27 (1) ◽  
pp. 51-57 ◽  
Author(s):  
W Nicholson Price II ◽  
Yang Chen ◽  
Samuel K Handelman ◽  
Helen Neely ◽  
Philip Manor ◽  
...  

2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Yih-Sheng Huang ◽  
Sheng-Haur Yu ◽  
Yea-Ru Sheu ◽  
Kuo-Shien Huang

This experiment aims to produce a free radical while annoying the oxidizing-reducing reagent of the ammonium persulfate and the sodium bisulfite under nitrogen, then trigger copolymerization between modified-mica and chitosan to prepare a variety of copolymers. This experiment also aims to study the related properties of these copolymer materials. The experimental data shows that the copolymer has more thermal stability and better absorption of UV than chitosan. But the above physical properties will be less if the mica ratio in copolymer is more than 8%. On the other hand, the SEM photo of the microstructure also shows that the modified mica distributes homogeneously on the surface of the film of the copolymer.


Author(s):  
Alexandre T. P. Alho ◽  
Sergio H. Sphaier ◽  
Carlos A. Levi Conceic¸a˜o ◽  
Paulo de Tarso T. Esperanc¸a

This paper discusses the investigations conducted to develop the hydraulic design of the flow conditioner of the current generation system of LabOceano. The performance of different flow conditioner configurations were numerically investigated by means of computational fluid dynamics techniques. The numerical results were validated against experimental data, showing a good performance of the numerical model in predicting the main flow characteristics. It was observed that undesirable high angles of incidence of the flow occur upstream of the flow conditioner, indicating that the culvert geometry is not of much help to contribute to the conditioning of the flow. However, the results demonstrate that, in spite of such an adverse inflow conditions, the classical solution based on the perforated plate concept works very well.


2011 ◽  
Vol 172-174 ◽  
pp. 973-978 ◽  
Author(s):  
Pavel A. Korzhavyi ◽  
Inna Soroka ◽  
Mats Boman ◽  
Börje Johansson

We apply density functional perturbation theory together with experimental studies in order to investigate the structure and physical properties of possible stable and metastable copper(I) compounds with oxygen and hydrogen. Copper(I) hydride, CuH, is found to be a metastable phase which decomposes at ambient conditions and exhibiting a semiconducting gap in the electronic spectrum. The calculated structure and phonon spectra are found to be in good agreement with experimental data. The phonon spectra of a novel metastable phase, copper(I) hydroxide, are also determined.


1991 ◽  
Vol 24 (3) ◽  
pp. 293-397 ◽  
Author(s):  
Myer Bloom ◽  
Evan Evans ◽  
Ole G. Mouritsen

The motivation for this review arises from the conviction that, as a result of the mass of experimental data and observations collected in recent years, the study of the physical properties of membranes is now entering a new stage of development. More and more, experiments are being designed to answer specific, detailed questions about membranes which will lead to a quantitative understanding of the way in which the physical properties of membranes are related to and influence their biological function.


2019 ◽  
pp. 9-11
Author(s):  
Андрух С. Л. ◽  
Маслій І. В. ◽  
Галушка С. А. ◽  
Теліченко Н. А.

All known hypotheses have three main groups.1 group. The coupling is considered as the result of the friction between the reinforcement and the concrete. Analytical dependencies are deduced from the physical side of the phenomenon taking into account the mechanical and physical properties of the materials;2nd group. The nature of the grip is determined by the magnitude and distribution of the mutual shifts q(x) and τ(x) in the reinforcement along the laying is determined by differentiating the experimental data of the displacement curve;3rd group. The analysis uses the distribution diagrams of longitudinal stresses in the reinforcement σ(x) obtained from the experiment. The tension stresses τ(x) are found from the equation of equilibrium, substituting in the expression τ (x) = ƒσ(x), the data are obtained from the experiments.


2021 ◽  
Vol 2 (1) ◽  
pp. 236-245
Author(s):  
Rashid M. Saitov ◽  
Mikhail A. Fomin ◽  
Elena A. Kostyreva ◽  
Svetlana V. Rizhkova ◽  
Inga S. Sotnich ◽  
...  

The article presents a methodology developed by the authors for calculating the lithological composition of the Bazhenov Formation in Western Siberia. It is based on the identified “core-logging” interconnections between the mineral-component composition of rocks and the physical properties of the section. The convergence of experimental data and calculated values is shown. The proposed technique was tested. The conditions of its applicability have been substantiated.


2019 ◽  
Vol 85 (9) ◽  
pp. 46-51
Author(s):  
A. V. Stepanenko

The results of studying correlation between the crystallographic texture of polycrystalline materials and anisotropy of their physical and mechanical properties are considered. The methods for calculating the anisotropic properties of polycrystals based on the data obtained by X-ray methods of direct and inverse pole figures are reviewed. Calculation methods based on the use of the distribution function of crystallite orientations require the use of a large amount of experimental data and, hence, they are not suitable for express estimation of the anisotropy level of the physical properties of samples upon their thermomechanical processing. A method for rapid estimation of the anisotropic properties of the sample based on the use of Д; ("orientation factors") in the calculations, is proposed. Experimental data of X-ray analysis (method of inverse pole figures) are used to calculate the absolute and relative deviations of the physical parameter of textured polycrystal from the same value in the isotropic sample. The contributions of individual crystallographic orientations to the formation of the anisotropy of the properties of the sample are estimated. The dynamics of quantitative changes in the anisotropic properties of a polycrystal in the process of texture formation is studied. To analyze the source of the most rapid changes in the anisotropy of properties, we used the coefficients of the "response" matrix, the calculation of which does not depend on the results of specific diffractometric measurements, but is common for all metals with a hexagonal close-packed (hep) lattice. The anisotropy of the coefficient of thermal conductivity, electrical conductivity, and thermal diffusivity was calculated for the samples of deformed yttrium which underwent cold rolling with a reduction ratio of e = 25%. It is shown that the final physical properties_of the hep polycrystal are largely determined by the pyramidal crystallographic orientations {1015}, {1124}. The results of the study form a basis for analysis of the anisotropy of the physical properties of hep-metal samples upon thermomechanical processing.


2003 ◽  
Vol 160 (5) ◽  
pp. 1137-1161 ◽  
Author(s):  
Y. Popov ◽  
V. Tertychnyi ◽  
R. Romushkevich ◽  
D. Korobkov ◽  
J. Pohl

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