Shenfu Dongsheng Coal Co. Ltd. of the Shenhua Group is a modern mining enterprise. To construct this first class world enterprise, Shendong Company placed em- phasis on construction and production, and complied the in...Shenfu Dongsheng Coal Co. Ltd. of the Shenhua Group is a modern mining enterprise. To construct this first class world enterprise, Shendong Company placed em- phasis on construction and production, and complied the internal administration with the international standards spontaneously. In order to strengthen the administration of the en- terprise, enhance the running efficiency of the systems, achieve the best administrative performances and goals, the Shendong Company began to engineer the integrated man- aging system(SDIMS) in early 2002. This article, as a case study, introduces the planning and construction processes of the SDIMS’s, and sums up the empirical experiences for modern and international mining enterprise.展开更多
The singularities and oscillatory performance of translating-pulsating source Green＇s function in Bessho form were analyzed. Relative numerical integration methods such as Gaussian quadrature rule, variable substitut...The singularities and oscillatory performance of translating-pulsating source Green＇s function in Bessho form were analyzed. Relative numerical integration methods such as Gaussian quadrature rule, variable substitution method （VSM）, and steepest descent integration method （SDIM） were used to evaluate this type of Green＇s function. For SDIM, the complex domain was restricted only on the 0-plane. Meanwhile, the integral along the real axis was computed by use of the VSM to avoid the complication of a numerical search of the steepest descent line. Furthermore, the steepest descent line was represented by the B-spline function. Based on this representation, a new self-compatible integration method corresponding to parametric t was established. The numerical method was validated through comparison with other existing results, and was shown to be efficient and reliable in the calculation of the velocity potentials for the 3D seakeeping and hydrodynamic performance of floating struc- tures moving in waves.展开更多
基金Supported by the Soft Science Planned Program of China(2004DGQ3D090) and the Returned Overseas Scholar Fund of Educational Ministry ofP.R.C(2003406)
文摘Shenfu Dongsheng Coal Co. Ltd. of the Shenhua Group is a modern mining enterprise. To construct this first class world enterprise, Shendong Company placed em- phasis on construction and production, and complied the internal administration with the international standards spontaneously. In order to strengthen the administration of the en- terprise, enhance the running efficiency of the systems, achieve the best administrative performances and goals, the Shendong Company began to engineer the integrated man- aging system(SDIMS) in early 2002. This article, as a case study, introduces the planning and construction processes of the SDIMS’s, and sums up the empirical experiences for modern and international mining enterprise.
基金Project supported by the National Natural Science Foundation of China （No. 50879090）, and the Key Research Program of Hydrody- namics of China （No. 9140A 14030712JB 11044）
文摘The singularities and oscillatory performance of translating-pulsating source Green＇s function in Bessho form were analyzed. Relative numerical integration methods such as Gaussian quadrature rule, variable substitution method （VSM）, and steepest descent integration method （SDIM） were used to evaluate this type of Green＇s function. For SDIM, the complex domain was restricted only on the 0-plane. Meanwhile, the integral along the real axis was computed by use of the VSM to avoid the complication of a numerical search of the steepest descent line. Furthermore, the steepest descent line was represented by the B-spline function. Based on this representation, a new self-compatible integration method corresponding to parametric t was established. The numerical method was validated through comparison with other existing results, and was shown to be efficient and reliable in the calculation of the velocity potentials for the 3D seakeeping and hydrodynamic performance of floating struc- tures moving in waves.
