打造传媒巨舰搏击市场风浪--记湖南省广播电视局党组书记、局长、湖南广播影视集团董事长魏文彬

魏文彬率先提出媒体产业化道路、电视台机制改革、资本运营和文化产业市场化。魏文彬成了“电视湘军”的领头人。他自写的一副对联“变比拼为联合，走出湖南，寻找新对手；由分散到集中，面向世界，冲刺新目标”，是在新世纪进一步打造湖南传媒巨舰的新思路。     

Numerical investigation of cavitating flow behind the cone of a poppet valve in water hydraulic system

Computational Fluid Dynamics (CFD) simulations of cavitating flow through water hydraulic poppet valves were performed using advanced RNGk-epsilon turbulence model. The flow was turbulent, incompressible and unsteady, for Reynolds numbers greater than 43000. The working fluid was water, and the structure of the valve was simplified as a two dimensional axisymmetric geometrical model. Flow field visualization was numerically achieved. The effects of inlet velocity, outlet pressure, opening size as well as poppet angle on cavitation intensity in the poppet valve were numerically investigated. Experimental flow visualization was conducted to capture cavitation images near the orifice in the poppet valve with 30° poppet angle using high speed video camera. The binary cavitating flow field distribution obtained from digital processing of the original cavitation image showed a good agreement with the numerical result. Project supported by the National Natural Science Foundation of China (No. 59835160) and Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry of China (No. 50175097)     

论近代美国西部开发中的土地投机问题

在美国十九世纪的西部开发中，通过市场途径实施国有土地私有化的土地政策，已被美国学术界给予了充分肯定。而与其密切相关的土地投机问题则带动了劳动力和资本的西移，促进了国内市场的形成，对西部开发产生了重要影响。     

School district size and student educational attainment: evidence from Denmark

This paper analyses the effects of the size of school districts on educational attainment of students after compulsory school in Denmark. Using administrative microdata for individual students and their parents, logit models for the probability of obtaining different levels of education are estimated where the explanatory variables include district size, per student expenditure, and a wide range of controls for family background and district socioeconomic characteristics. It is found that attending schools in districts with a population of less than 15,000 (corresponding to less than 1800 students in public primary and lower secondary schools) has negative effects on educational attainment later in life: The probability of completing a secondary education (upper secondary school or vocational education) or a further or higher education is reduced by approximately 3 percentage points compared to having attended primary and lower secondary school in a district with more than 15,000 inhabitants.     

上市公司资本结构的实证分析

如何达到最佳的资本结构 ,是公司理财中需要面对的首要问题 .以上市公司为样本 ,采用因子分析方法和岭回归方法对公司资本结构的影响因素进行实证分析研究 .结果表明 ,企业规模、获利能力、营运风险与总负债比例成正相关 ;成长机会、非负债类避税与总负债比例成负相关 ;抵押价值与长期负债比例成正相关     

经济欠发达地区实验室建设投资渠道的构建与分析

通过对该校当前招生现状和存在问题的阐述,强调了经济欠发达地区大学实验室建设的紧迫性,对如何积极挖掘社会潜力,多元化开辟建设资金渠道的基本框架进行了构建与分析。     

建立有效的内部会计控制体系

中国企业界的迫切任务是要运用先进的内部控制理论和方法,强化内部控制,提高管理水平。企业应当按照公司治理结构层次和企业内部会计控制目标的内容层次来设计企业内部会计控制制度,以便具体贯彻实施企业内部会计控制。     

家庭社会经济地位与大学生就业——一个社会资本的视角

家庭社会经济地位是决定大学毕业生社会资本水平的最主要因素,而社会资本水平又与大学毕业生的就业行为及结果有着密不可分的联系。实证分析表明:以家庭社会经济地位来衡量的社会资本对大学毕业生的就业意向、求职行为和工作落实情况具有不同程度的影响,即社会资本水平越高的大学毕业生推迟就业的可能性越大,更愿意选择企业单位就业,期望的月薪起点越高,求职信心也越强,此外,他们付出的求职努力相对较少,而最终落实单位的概率较高。因此我们在研究大学生就业问题时不能忽视社会资本。     

物流业入世后过渡期营销创新研究

随着入世后过渡期的到来,市场开放将提速,并逐步取消外贸引入的地域限制、数量限制、股权限制等,这将对中国的物流业带来一定的影响。通过对中国物流业的SWOT和应对WTO 策略分析,营销创新对振兴中国物流业将起到积极的作用。     

自动调节阀流量特性实验的开发

介绍了自动调节阀流量特性实验的意义和基本原理,重点讲解了如何对原有的实验设备进行改造,以很少的花费、开发出新的教学实验项目所开展的工作。这项改进为丰富实验教学内容、提高实验设备的利用水平,促进理论教学与实际动手能力的训练起到重要作用。