基于科技型人才聚集的高等院校协同创新系统建模与仿真

高等院校是推进协同创新的重要力量,相关研究议题日益受到国内外学者关注。在对高等院校协同创新模式进行研究的基础上,以科技型人才聚集为视角,提出高等院校协同创新复杂系统。通过分析协同创新环境与高等院校协同创新系统的作用过程,基于系统动力学方法构建相应模型,运用Vensim PLE软件进行系统仿真,并利用拟合优度方法验证系统有效性。应用灵敏度分析方法,结合工作实际,得到高等院校协同创新管理启示如下：制定以科技型人才为主导的协同创新战略,强化高等院校协同创新的政策制度支撑,完善高等院校协同创新投入机制。     

基于支持向量回归的现代气象雷达寿命预测

为了准确地预测气象雷达使用寿命, 提高气象雷达运行可靠性、安全性和可维护性, 提出了一种新的基于多元回归的气象雷达使用寿命预测框架。在该框架内,采用了支持向量 回归(SVR)方法来求解气象雷达使用寿命的多元回归问题;提出了基于SVR的气象雷达特征参 数选择FSSSVR（Feature Subset Selection SVR）算法去掉冗余和无效的特征参数。实验结 果表明,基于SVR方法的预测算法能够准确地预测气象雷达的使用寿命,能够为雷达全寿命 周期管理提供参考依据。     

INFINITE HORIZON INCOMPLETE MARKETS WITH A CONTINUUM OF STATES

In this paper we address existence of equilibria in an incomplete markets economy with countably many periods and a continuum of states at each node of the infinite tree. We consider two models: one where agents have to honor their commitments and another where default is allowed. In both models, marginal utility of income, at each node, is shown to be bounded, and we prove existence by taking finite-dimensional approximations and applying Fatou's lemma sequentially.     

积极发展农村旅游是河南省经济社会科学发展的重要战略

河南省要在"十一.五"期间实施跨越式发展,由经济大省发展为经济强省,旅游业由资源大省向强省跨越发展。产业结构失衡,第三产业比重过低,"三农"问题突出是施行上述发展战略的制约因素,也是河南经济社会发展的重点和难点。解决这个问题根本出路在于大力发展农村经济和各项农村事业。但人口和资源的矛盾限制了农村经济社会的发展。河南具备了发展农业旅游业的社会经济基础和旅游资源。发展农业旅游是解决"三农"问题使河南由"大"变"强"的一个科学战略。发展农业旅游要采取政府主导、市场运作,农民参与;规划先行,精心实施;保护与开发并重;高端起点,产品独特,拓展旅游功能;将旅游业发展和新农村建设相结合的战略。     

电子商务零渠道销售同非法传销有天壤之别

电子商务零渠道销售,是光天化日之下的“白社会“运作模式,是参与者共赢的经营模式;而非法传销是“黑社会“运作模式,是层层盘剥、互相欺诈的经营模式.     

用鼠标器及键盘绘制图形

本文介绍了用鼠标器和计算机键盘绘制桥梁、楼房立面图、美术图案及办公自动化图表等图形的一种方法,并附有实例。     

Ownership,two-tier board structure,and the informativeness of earnings – Evidence from China

This study extends previous research by empirically examining how ownership, two-tier board structure, and auditor affect the informativeness of earnings for companies listed in China. We measure the informativeness of earnings by the earnings–returns relation, discretionary accruals, and audit opinion. The results show that ownership concentration, the presence of foreign shareholders, the percentage of tradable shares, the type of dominant shareholder, the supervisory board, and independent directors affect the earnings response coefficients and discretionary accruals. We also find that the type of dominant shareholder, the size of the supervisory board, and the percentage of independent directors have an impact on the frequency of modified audit opinions. Our research has implications for China’s regulators who are striving to improve accounting information, transparency, and corporate governance.     

论应收账款证券化及其会计问题

应收账款证券化具有明确的金融创新的意义，现在已成为国际资本市场发展最快、最具活力的高档金融产品之一。然而其复杂的金融安排使会计理论与实务均面临前所未有的挑战，成为会计领域亟待解决的问题。本本着实质重于形式的原则，拨开复杂的金融安排的层层面纱，从应收账款证券化的经济本质中探讨应收账款证券化的相关会计问题。     

神奇的“中国小红盒”

如火似的方形红绸盒中装有一只洁白如玉的腊球,球里珍藏着一枚圆润光亮的褐色药丸,这让吃惯了白药片的人百思不得其解.张裕"中亚牌"至宝三鞭丸以独特的包装、神奇的疗效,在国内外传为神话,仿佛那小红盒里藏着一个小精灵,国外人给了它一个十分独特的称号--神奇的"中国小红盒".     

A new efficient method for estimating the Gerber–Shiu function in the classical risk model

In this paper, we propose a new efficient method for estimating the Gerber–Shiu discounted penalty function in the classical risk model. We develop the Gerber–Shiu function on the Laguerre basis, and then estimate the unknown coefficients based on sample information on claim numbers and individual claim sizes. The convergence rate of the estimate is derived. Some simulation examples are illustrated to show that the estimate performs very well when the sample size is finite. We also show that the proposed estimate outperforms other estimates in the simulation studies.