论中国金融业混业经营风险流量机制的培育

混业经营是当代金融业发展的必然趋势,必然带来风险的相应集聚。文章从金融的流动性要求出发,阐述了在混业经营时必须进行风险的传递和将风险流量机制作为中国金融业混业经营的基本参照系的基本观点,并根据中国的实际情况从新制度经济学的角度提出了相应的举措。     

知识流在企业各层次间的流动与转化

在知识经济时代,如何能实现知识管理的成功应用已经成为关乎企业生存发展的关键因素之一。以知识流在企业各层次间的流动过程为视角,研究企业各层次间如何更好地实现知识共享与创新,并在此基础上建构敏捷组织知识学习二维度模型,为科学决策和成功实施知识管理提供依据。     

政治的鸦片与鸦片的政治

从清代中期开始的衰落与鸦片传入中国后经历的由宫廷而流传至各级官吏 ,又由统治阶层而蔓延到全国各地、社会各阶层的过程中 ,可以看出鸦片与近代中国政治发展的历程息息相关 ,相互影响 ,互为因果     

现代性多层叙事的意义

在《孔乙己》中,文本叙述者是两个不同的“我”进行的多角度多层次叙事,一层是表面叙述孔乙己的故事,另一层是潜在的自我心理流程的揭示。作者赋予文本丰厚而深刻的审美内涵,表达出哲学寓言层面的象征意义,具有强烈的反省抒情意味,表现了“五四”知识分子的现代主体意识:对生命的尊重和对人性的审视。其叙事机制的现代性代表了五四作家对小说叙事模式的探索。     

生命意识与美的创造——谈张竞生的生命美学思想

五四时期的张竞生的美学思想,以生命的发生演变来揭示宇宙人生,以人的性心理研究来探索个体的生命形态和“美的人生观”。在这里,生命意识的起源为“储力”和“现力”,“生命力”的“内兴”形式是极端感情、极端智慧和极端志愿的发展,其“外趣”的扩张是生命形态的“美间”、“美流”、“美力”和“动美”、“壮美”、“唯美”。这是中国现代知识分子面对急剧来临的西方现代主义思潮的一种独特思考,其中既携带着一些异端性和偏激性,也蕴含了某种程度的先锋性和现代性的意义。     

动态查询校园网流量计费的实现

利用VB语言开发了基于代理服务器流量计费软件，通过将VBScript程序嵌入到HTML中，利用ASP技术从客户机上动态查询流量计费，对本月份，单个月份，任意两个月份之间，用户可以按照与每个用户唯一的用户帐号，也可以按照IP地址来实时地从客户机上动态查询流量和费用，解决了流动用户访问Internet用户计费和查询问题，该给出了实现单个月份费用查询的利用VBScript语言编写的程序的流程图。     

A quadratically convergent algorithm for first passage time distributions in the Markov-modulated Brownian motion

A Markov-modulated Brownian motion (MMBM) is a substantial generalization of the classical Brownian Motion and is obtained by allowing the Brownian parameters to be modulated by an underlying Markov chain of environments. As with Brownian Motion, the time-dependent analysis of the MMBM becomes easy once the first passage times between levels are determined. However, in the MMBM those distributions cannot be obtained explicitly, and we need efficient algorithms to compute them. In this article, we provide a powerful approach based on approximating the MMBM with a sequence of scaled Markov-modulated fluid flows without Brownian components that weakly converge to the MMBM. Our main result is a Riccati equation for an associated matrix of transforms that satisfies conditions for the Newton scheme to have quadratic convergence and thus yields a very practical tool. The solution of that Riccati equation determines needed first passage times in the MMBM without much additional work. The success of our approach, which is based essentially on first-order fluid flows and a stochastic limit process, is argued to be due to the way we have isolated certain terms involving the quadratic variation effects of the Brownian. As an illustration of our algorithm, we present a numerical example of time-dependent results for a MMBM considered by Asmussen for which he determined (only) the eventual first return probabilities which we use here as an accuracy check.     

Forecasting spring flow time series

Summary The paper deals with a statistical analysis, carried out to define the underlying reason of some of the damage observed in many buildings of a southern Italian town. Engineering considerations, substantiated by specific measurements, attributed them to the lowering of the groundwater table in the area below the building locations. Due to two coinciding events which occurred in the preceding years, i.e. a persistent drought and the start up of a system of wells, it was not possible to define the cause of the former phenomenon. As shutting down the wells could generate additional problems, an accurate picture of the whole situation was necessary, before taking any action. By taking advantage of some fragmentary data belonging to the flow of a spring located in the area and on the basis of the knowledge of the rainfall data recorded in the Italian hydrographic service directory, two models have been developed which reproduce the spring flow time series in relation to the rainfall recorded in the surrounding area. By comparing the spring flow predictions with the actual data it has been possible to highlight the main role played by the wells.     

改进的势函数模型与跨声速含激波流动

本文在分析激波处流动性质和熵条件的基础上，指出了传统等熵势函数在跨声速流动计算中的局限性；对解除了等熵和无旋约束的一些改进了的势函数模型作了系统的综述和分析，进一步讨论了均熵与无旋条件在物理上的相容性以及人工粘性对激波处Ｒａｎｋｉｎ－Ｈｕｇｏｎｉｏｔ条件的影响，为势函数方法在跨声速流动中的拓广应用及进一步提高激波计算精度提供更为广泛的途径     

短束激励的尾场波裂条件

解析研究极短电子束激励的等离子体线性与非线性尾场,发现它们具有相同的最大值。在同样实验数据下,利用所得的尾场公式得出的理论值好于以往文献的公式理论值。得到了相应的波裂条件。