An application of variational method to a class of Dirichlet boundary value problems with impulsive effects

In this paper, a class of impulsive differential equations with Dirichlet boundary conditions are considered. Multiplicity results are obtained by critical point theory. Recent results in the literature are generalized and significantly improved.     

On rectangular systems of differential equations and their application to circuit theory

A system of differential equations A(d/dt) x = Bx+f, along with the initial condition x(0) = k, is considered where A and B are m x n matrices. Generalized inverses of the matrix A are used to derive algebraic conditions for the existence and uniqueness of a solution. An example is presented to illustrate application of the results to circuit theory.     

A walsh series direct method for solving variational problems

This paper establishes a clear procedure for the variational problem solution via the Walsh functions.technique. First the Walsh functions are introduced and their properties briefly summarized. Then an operational matrix is derived for integration use. The variational problems are solved by means of the direct method using the Walsh series. An illustrative example and a practical application to a heat conduction problem are included.     

城市配电网规划相关问题分析

城市配电网是电力系统的重要组成部分,规划是否得当直接决定着配电网的建设方向,关系到城市的发展和人民的生活水平的提高。针对城市配电网规划中遇到的无功补偿、中性点接地方式和短路电流计算相关问题,给出了分析方法和建议措施。     

扎根理论研究法在管理学研究中的应用

扎根理论研究法等质化研究方法在国内外管理研究中得到越来越多的重视。在阐述扎根理论研究法基本思路的基础上,重点分析了扎根理论研究法在适用研究问题、资料分析、文献阅读、成果表达、计算机辅助分析等方面应该注意的问题,以便为研究者正确、规范地使用这一方法提供借鉴。     

对中国利率市场化问题的探讨

对阻碍中国利率市场化进程的宏微观约束的分析，总结出中国尚未实现利率市场化。只有健全商业银行经营机制，加强中央银行的经济主导地位，完善金融市场，放开人民币存贷款利率，才不会引起金融体系大动荡，中国的利率市场化改革才能真正成功。     

胎心监护在临床应用中常见问题分析及处理措施

胎心监护是监测胎儿宫内状况的检查之一,目的在于及时发现胎儿宫内缺氧,已越来越广泛应用于临床。临床应用中,胎监曲线图常常受多种因素的影响,导致假阳性率升高和胎儿宫内窘迫的过度诊断,增加过多的产科干预。文章分析了胎心监护在临床应用中存在的问题,探讨了提高胎心监护曲线准确性的临床技术要领,指出加强临床医师素质和技能培训的重要性,也就仪器的维护和管理提出了建议。     

透视增长极理论及在我国区域经济发展中的应用

通过分析增长极理论的内涵及其在我国区域发展中的应用,提出应加强政府对扩散作用的引导等一些建议,以期能够推动我国区域经济健康、持续、快速发展。     

Recent dielectric constant theory and its relation to problems of electrical insulation

There has been indicated the importance of a knowledge of the chemical and capillary structures of insulating materials if electrical energy losses in them are to be explained.It has been demonstrated that there are available, first, methods by which the structures of their simpler molecules may be determined, second, methods by which the sizes and shapes of their aggregates may be approximated, and third, methods by which it may be expected that something may be learned concerning the size, form and arrangement of their capillaries. In certain cases these methods have been given in some detail, while in others they have only been mentioned. Their nature and the importance of their solution make them deserving of every attention the chemist and physicist can devote to them.     

论双因素理论在高校科研团队管理中的应用

以管理学的双因素理论为视角,尝试并探讨了双因素理论在高校科研团队激励管理中的应用。