The factors affecting the deflection flow in a bifurcated fracture under effect of contact area are discussed. effects and cross-section on determined using combination experiments numerical simulations. seepage changes fractures confining pressure monitored film. A parallel plate model with single is established, which good agreement results laboratory experiments. Based simulation experiments...

We present a novel method for maximizing signal gain in continuously pumped silicon-waveguide Raman amplifiers made with silicon-on-insulator technology. Our method allows for pump-power depletion during Raman amplification and makes use of a variational technique. Its use leads to a system of four coupled nonlinear differential equations, whose numerical solution provides the optimal axial pro...

In this work, the settlement deformation of soft-soil subgrade and law geogrid were studied based on field tests carried out pile-supported reinforced embankment Rongwu Expressway in Xiong’an New Area. The reinforcement area underlying layer embankment, transverse longitudinal sections subgrade, bidirectional analyzed. results show that reducing pile spacing height can effectively reduce founda...

We study precise calculation of neutralino relic density in the minimal supergravity model. We compare the exact formula for the thermal average of the neutralino annihilation cross section times relative velocity with the expansion formula in terms of the temperature, including all the contributions to neutralino annihilation cross section analytically. We confirm that the expansion formula fa...