Calculation shows that, in low permeable reservoirs, well production decreases as the increasing of start up pressure gradient and media deformation factor, and increases as the increasing of producing pressure differential.
The water retention, heat conduction and deformation factor of the traditional plastering mortar are not matched with aerated concrete. It is the main cause of the plaster cracking and hollowing of the aerated concrete interior wall.
in the low-permeability reservoir of deformation medium, the productivity of the stimulated well decreases with the increases of start-up pressure gradient and medium deformation factor, increases with the increases of the active radius and the active factor of the well, and increases with the increase of production pressure difference;
According to the"empirical theory of solids and molecules",a valence electron structures parameter-uniform deformation factorαwas proposed. The valence electron structures of Ti-Al and Fe-Al systems have been analyzed. α values were calculated,and the results were in agreement with experimental data.
This paper,according to the “Empirical Electron Theory of Solids and Molecules”(E.E.T),proposes a valence electron structure parameter-uniformed deformation factor α,analyzes the valence electron structures of Ti Al and Fe Al system,calculates α values,and discovers the corresponding relations between α and ductility δ,which explains the nature of embrittlement of intermetallics and deduces an empirical embrittlement criterion.
According to the empirical electron theory (E E T ) of solids and molecules,an electron structures parameter——the uniform deformation factor α is proposed Values of α have been calculated by the valence electron structures for Ti Al and Fe Al systems It is found that the value of α has a good correspondence with the ductility δ The nature of embrittlement of intermetallics is thus explained,and an empirical embrittlement criterion induced
This paper provides the method with the simple analytical-solution of the small deformation theory as a ratio-item. And the conversion coefficient is cited to solve the deformation factor of the complicated large deflection.
The redundant deformation factor in axisymmetric drawing (φ) plays a central role in the analysis of the process and on the prediction of the mechanical properties of the final products.
The strength loss exhibited by the surface layers of the carbides in the range 900-1400°C is a result of the effect of the temperature factor becoming stronger than that of the deformation factor.
This deformation factor stimulates the expression of the RH-44 gene but does not induce the expression of the gene encoding RH-42.
This peper uses a PC-1500 computer to calculate surface movement and deformation factors of Beipiao Coal Mine steep-lying mining, and analyses the surface movement data of practical measurement. A relationship between surface movement and deformation factors of Beipiao Coal Mine steep-lying mining and geologic mining terms is obtained.
The quantitative methods of the polarity level of chemical bonds are briefly reviewed in the first section of this article. And in the second the definitions of the polarization and the deformation factors are presented, the sizes of them are calculated,the physical model for deciding the polarty level of chemical bonds is put forward and the ionicity percentages of 91 dicompont compounds are calculated at last.
The influences of the balloon effect, i. e. the elastic deformation of the semipermeable membrane and the adhesion of liquids on the capillary, wall, on the measurement of solvent permeation rate and osmotic pressure of polymer solution were investigated by dynamic method theoretically and experimentally. The balloon effect leads to the departure from linearity of the plot of permeation rate of solvent against the hydrbstatic pressure difference. This effect could be described quantitatively by a deformation...
The influences of the balloon effect, i. e. the elastic deformation of the semipermeable membrane and the adhesion of liquids on the capillary, wall, on the measurement of solvent permeation rate and osmotic pressure of polymer solution were investigated by dynamic method theoretically and experimentally. The balloon effect leads to the departure from linearity of the plot of permeation rate of solvent against the hydrbstatic pressure difference. This effect could be described quantitatively by a deformation factor which is closely related with swelling ratio of the membrane in the solvent. The adhesion of liquids on the capillary wall influences the reproducibility of measurements and is the main reason for the occurrence of the unsymmetry of ascending and descending lines.
deformation factor
变形系数
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