A theoretical model for the relative gas diffusion coefficient in dry porous media embedded with a Y-shaped fractal-like tree network is presented under the combination of bulk diffusion and Knudsen diffusion. The proposed model is expressed as a function of the length ratio, the diameter ratio,...

Renewable wind energy is one of the most efficient and effective ways to deal with global warming and energy crisis. Recently, wind energy has grown at an impressive rate in entire world. As we know, the blades are the most important components of wind turbine. In order to increase the energy...

Groundwater flow plays an important role in affecting the thermal performance of borehole heat exchangers (BHEs). In the present work, a few field tests are conducted in Shouguang, China, to compare the thermal performance of three BHEs in different aquifers. The results show that there is a...

Yunnan, a southwestern frontier province in China is located in mainland Southeast Asia and is inhabited by diverse cross-regional ethnic groups. This essay attempts to reveal the Bengal connections in historical Yunnan from the medieval age to the early modern period through a scrutiny of...

Past research has consistently shown that companies with high level of technological competence are more likely to have higher product and process innovation performance. However, apart from technological competence, companies need other competences to promote innovation performance. In this...

We reformulate a stochastic nonlinear complementarity problem as a stochastic programming problem which minimizes an expected residual defined by a restricted NCP function with nonnegative constraints and CVaR constraints which guarantee the stochastic nonlinear function being nonnegative with a...

In this paper, for solving the nonlinear semidefinite programming problem, a homotopy is constructed by using the parameterized matrix inequality constraint. Existence of a smooth path determined by the homotopy equation, which starts from almost everywhere and converges to a...

On July 1st, 2008, Colorado Blue Laws banning Sunday packaged liquor sale were repealed. We estimate the effect of this policy change on alcohol-related accidents and traffic citations in a regression discontinuity design. Across specifications, we find no evidence that the repeal of Colorado...