共搜索到20521条信息,每页显示10条信息,共2053页。用时:0小时0分0秒719毫秒
correlation for HOX is only given based on the present data. Key words: pulsed extraction column; axial diffusion model; mass transfer; steady-state concentration profile axial diffusion model and mass balance in the column, over the differential elements of the column with a cross-section area and total effective height Hc......
and the stress diffusion effect of pile end soil, this paper theoretically investigates the torsional vibration characteristics of tapered pile. Utilizing the complex stiffness transfer model to simulate compaction effect and tapered fictitious soil pile model to simulate stress diffusion, the analytical solution for the torsional impedance at tapered pile top is obtained by virtue of Laplace transform......
is the gravitational acceleration in the axial (z) direction; μ is the viscosity of the mixture; Yk is the mass fraction of the k-th species; Vk,r and Vk,z are the diffusion velocities of the k-th species in r and z... band model for the properties of CO, CO2 and H2O [10]. The species diffusion velocity consists of three terms: ordinary diffusion, thermal diffusion and correction diffusion velocities, i.e. (6a......
A, IVANTYSYNOVA M. A transient thermoelastohydrodynamic lubrication model for the slipper/swashplate in axial piston pump [J]. Journal of Tribology, 2015, 137(3): 031701-031711. DOI: 10.1115/ 1.4029674. [8... J. Cent. South Univ. (2020) 27: 1515-1529 DOI: https://doi.org/10.1007/s11771-020-4387-x Tribological performance of MoS2 coating on slipper pair in axial piston pump TANG He-sheng(汤何胜)1, 2, REN......
. The effects of the feed concentration, channel length, axial velocity, and diffusion coefficient on the concentration at membrane surface and the concentration profiles were investigated. Furthermore..., Dx and Dy are the axial diffusion coefficient and the transverse diffusion coefficient, m2/s, respectively. Boundary conditions are given by where c0 and cp are the concentration......
methods 2.1 Geometric model and boundary conditions The schematic diagram of computation domain and boundary conditions is depicted in Figure 1. As you can see, the computational zone is axial symmetry... J. Cent. South Univ. (2020) 27: 1880-1890 DOI: https://doi.org/10.1007/s11771-020-4415-x A non-monotonic blow-off limit of micro-jet methane diffusion flame at different tube-wall thicknesses LI......
; accepted 22 December 2005 Abstract: Sulfuric acid recovery from rare earth sulphate solutions by diffusion dialysis was studied. The mass transfer model of diffusion dialysis was established, the comparison...) and 0.7-0.8, respectively. Key words: diffusion dialysis; sulfuric acid; recovery; rare earth; mathematical model 1 Introduction As an important industrial chemical, sulfuric acids are widely used......
coefficient and molecular weight of species i, respectively; and R is the universal gas constant. The multiple species diffusion model is applied to calculate species diffusion flux, in which thermal... J. Cent. South Univ. (2020) 27: 867-875 DOI: https://doi.org/10.1007/s11771-020-4337-7 A numerical investigation in buoyancy effects on micro jet diffusion flame LIU Lei(刘磊)1, ZHAO Ming(赵明)2, CHEN......
......
Application of the Hydrogen Diffusion Model to the Hydrogen Permeation杨柯,曹名洲,万晓景,师昌绪摘 要:<正> The model of hydrogen diffusion formerly de-veloped [1... it was shown that the model can re-fiect well the diffusion of hydrogen in the materialswith trapping.The obtained trapping parameters(αand β)can be used to explain well the diffusion ofhydrogen......