Small and medium-sized enterprises (SMEs) often have difficulty competing in the global economy unless they collaborate with domestic or foreign partners or with public sector organizations. This book addresses the resource leverage and innovation challenges that increased global trade...

Considering homosexual contacts and heterosexual contacts in the course of sexual contacts, double degrees which describe the numbers of homosexual contacts and heterosexual contacts are introduced, correlation coefficients about degrees based on the joint probability distribution are given, and...

The initial stage of Au adsorption on the Si(111)-7 × 7 surface has been investigated by the first-principles calculations. Different configurations have been considered and the high coordination sites were determined as the most possible places for the Au adsorption. The diffusion barriers for...

To prevent the carbon/carbon (C/C) composites from ablation, a new type of ablation protective coating was prepared on the surface of the C/C composites by a step pack cementation technique. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis show, the coatings obtained by...