An exchange rate determination model for central banks' interventions in financial markets

We establish an exchange rate determination model for central banks' in terventions in financial markets. The model shows that central banks can adjust exchange rate by several policy instruments and that different instruments may h ave different effects on exchange rate determination. It specifies potential pol icy instruments for central banks as well as their policy effects. Based on thes e effects, feasible matches of policy instruments in contingent intervention are put forth.     

发展电子商务对企业财务管理的影响分析

进入21世纪，全球网络技术和电子商务的快速发展使我国企业传统财务管理既面临严峻挑战，又带来了新的机遇，必须充发发挥政府部门的宏观调控作用，加强专业技术人才的培养，引导企业参与电子商务开发，并从中国实际出发，解决支付货币的电子化问题。     

供应链管理的电子商务技术支持

本文论述了供应链管理的内涵和意义以及供应链管理的核心内容，进而对电子商务的一系列手段为供应锭管理提供了有力的技术支持进行了探讨。     

高应力比下路用水泥混凝土疲劳可靠度量化分析(英文)

为获得路用水泥混凝土在高应力比作用下其疲劳可靠度的变化规律,首先推导了包括混凝土疲劳寿命在内的单调随机变量的概率密度,然后推导了 Miner 与 Chaboche-Zhao 疲劳损伤模型的概率密度. 借助室内疲劳试验结果,获得这 2 种模型的疲劳损伤概率密度函数. 最后,将荷载作用次数代入上述函数,从而获得水泥混凝土疲劳可靠度随荷载作用次数的变化规律. 结果表明: 随着荷载作用次数的增加,相同应力比下,疲劳可靠度从 100%逐渐衰减为 0%; 无论何种应力比,在荷载作用初期,疲劳可靠度均有一个较为稳定的阶段; 随着应力比的增加,该稳定阶段逐渐缩短,且可靠度为 0%时对应的荷载作用次数也减小; 在可靠度衰减阶段,对于相同荷载作用次数,应力比越高,则混凝土可靠度越低; 此外,Miner 疲劳损伤模型比Chaboche-Zhao 疲劳损伤模型偏安全.     

论高校内部财务控制六个保障系统的强化

本文针对我国高校内部财务控制系统比较薄弱、内部控制效果不够理想的现状,提出搞好高校内部财务控制应注意强化思想保障、环境保障、组织保障、信息技术保障、机制保障和法律制度保障。     

Web Service下的商品推荐系统的研究与实现

基于电子商务平台的Web service已经是广大消费者购买或者浏览商品的主要形式之一．但是,网络上的海量信息也给我们带来了很多不便．对于用户来说,如何及时地发现所需要的商品已经变得越来越困难．本文综合运用了关联挖掘、智能推荐算法等机器学习方法提出了一个Web Service下的产品智能推荐Agent模型：Smart Recommendation,该系统通过对用户的历史交易记录的分析,挖掘出客户的购买模式和购买兴趣,并根据发现的模式对用户进行商品的智能推荐．实验结果表明,推荐模型具有较高的准确性,并且对用户的购买行为有一定的指导作用．     

基于F-AHP的物流企业财务风险评价和防控策略研究

通过对现代物流企业财务风险因素进行识别,分析影响现代物流企业财务风险的四大关键因素（投资风险、筹资风险、现金流量风险和内部控制风险）;提炼出关键评价指标体系,构建基于FAHP的物流企业财务风险综合评价模型。结合现代物流企业的经营和财务风险特征,从投资风险、筹资风险、现金流量风险和内部控制风险四个维度提出现代物流企业财务风险防控策略。     

Grief enriched us: a model of perinatal loss support

This article provides an example of the clinical application of one of the Lamaze International's Institute for Normal Birth evidence-based care practices. The practice of keeping mother and baby together, even in unusual circumstances, enhances family relationships and provides for positive lifetime memories.     

机械传动系统中优化齿轮减速传动比的分析

为了减少机械伺服系统中机械传动的能耗,提出并分析了通过优化传动系统中齿轮减速传动比来减少能耗的方法,并与传统的惯量匹配法进行比较。结果表明,应用优化齿轮减速比方法可以比惯量匹配法大大减少了能耗。     

调整课程设置，适应人才需求——财务会计专业教学侧重点的改变刍议

我国社会经济的进一步发展,社会对财务会计人员的知识能力结构的要求从记账报账型向资本运作和风险投资型转变。多年来惯用的教学计划和课程设置已经不能适应社会对财会人员的需求。高职财会专业必须要压缩一般公共课课时和会计类课时,增加理财类课程门数和课时数,并适当增加任意选修课以满足学生多样化的就业门路需要和扩展自由发展个性的空间。     

二次损失下带约束增长曲线模型的线性容许Minimax估计

在二次损失下,讨论了带等式约束的增长曲线模型的参数阵在适当的线性估计类中是线性Minimax容许估计的充分必要条件.     

对称熵损失下一类指数分布族的Bayes估计

文中研究了在对称熵损失函数下,一类指数分布族参数的Bayes估计及其可容许性,并讨论了一类形式cT＋d的可容许性.     

复合LINEX对称损失下Lomax分布形状参数的Bayes估计

文章在复合LINEX对称损失函数下,研究Lomax分布尺度参数已知的情况下,形状参数的Bayes估计,并通过数值模拟来验证其合理性。     

User Interfaces for a Virtual Learning Environment: Two Study Cases

A recent powerful idea in the design of Web-based learning environments is the usage of virtual places. The employment of interface metaphors is one of the approaches enabling inexperienced users to feel comfortable in such virtual environments. We have designed a Virtual Environment for Distance Education and Training (VEDET), which provides basic virtual spaces, resources, and services. In this paper we discuss the user interface of two Web-based distance learning courses Business on the Internet and Business English, developed on the basis of VEDET. A web-based learning environment has been implemented to support the delivery of these courses. Two examples of interface metaphors have been developed and adopted, each presenting a coherent image of the environment. © IFIP, published by Kluwer Academic Publishers     

Theory and application of loss of life risk analysis for dam break

The loss of life risk evaluation model for dam break is built in this paper.By using an improved Monte Carlo method,the overtopping probability induced by concurrent flood and wind is calculated,and the Latin Hypercube Sampling is used to generate random numbers.The Graham method is used to calculate the loss of life resulting from dam failure.With Dongwushi reservoir located at Hebei Province taken as an example,the overtopping probability induced by concurrent flood and wind is calculated as 4.77×10-6.Loss of life is 24 220 when the warning time is 0.25-1 h and flood severity understanding is vague,which indicates that the risk is intolerable.The losses of life under three other conditions are tolerable:warning time 0.25-1 h,and precise flood severity understanding;warning time more than 1 h,and vague flood severity understanding;warning time more than 1 h,and precise flood severity understanding.     

上市公司财务分析综合判断模型及应用

上市公司财务指标是了解和评价一个企业最重要的信息来源,财务分析指标从不同侧面反映了该公司的实际运作情况,因而各指标之间在正常情况下存在着某种相关关系,但是财务分析指标数量众多,并且有可能在表现形式上存在一定的矛盾性,从而为综合分析带来较大的难度,利用因子分析(Factor Analysis)这种多元统计的分析方法,则可以用较少的因子来描述众多财务指标之间的内在联系.我们依据此原理建立了企业财务分析综合判断模型C,从而为进行财务分析、评估和选择有投资价值的企业,提供了一种科学、理性、简便、客观的方法和手段.     

A blended model: simultaneously teaching a quantitative course traditionally,online, and remotely

As universities seek to bolster enrollment through distance education, faculty are tasked with maintaining comparable teaching/learning standards in traditional, blended, and online courses. Research has shown that there is an achievement gap between students taking courses exclusively offered online versus those enrolled in face-to-face classes. In an effort to mitigate these observed differences, the School of Business faculty at the research institution investigated various course models to meet the needs of a diverse, non-traditional, and multifaceted student population. Ultimately, a blended course model for statistics and quantitative method courses was developed that allowed students to choose between online, remote (via interactive television), and traditional course delivery modes each week. This model is more flexible and agile than existing blended courses that have more static components. Multiple regression analysis, χ², and t-tests are used to demonstrate the efficacy of our model in maintaining student performance standards.     

新闻界信用缺失的成因及其对策刍议--我国新闻可持续发展系列研究(之二)

在市场经济背景下,我国新闻界面临着信用缺失的危机。造成这种信任危机的直接原因是,新闻界滋生腐败现象,败坏了新闻队伍的整体形象和良好声誉;虚假新闻泛滥成灾,损害了新闻媒体在受众心目中的信誉度;有偿新闻屡禁不绝,误导、甚至欺骗受众,激起大众的抱怨和不满。面对这种情势,要保持我国新闻的可持续发展,必须探索建立个人自律、单位管理和社会监督相结合的新机制和新措施,重塑新闻界的形象,增强传媒的公信力。     

Mixed linear model approaches for analyzing genetic models of complex quantitative traits

New approaches based on general mixed linear models were presented for analyzing complex quantitative traits in animal models, seed models and QTL (quantitative trait locus) mapping models. Variances and covariances can be appropriately estimated by MINQUE (minimum norm quadratic unbiased estimation) approaches. Random genetic effects can be predicted without bias by LUP (linear unbiased prediction) or AUP (adjusted unbiased prediction) methods. Mixed-model based composite interval mapping (MCIM) methods are suitable for efficiently searching QTLs along the whole genome. Bayesian methods and Markov Chain Monte Carlo (MCMC) methods can be applied in analyzing parameters of random effects as well as their variances. Projects supported by NSFC (39670390, 39893350) and the NIH Grant GM32518     

Linex损失及NA样本下单边截断型分布族参数函数的EB估计

本文在Linex损失函数下,充分运用同分布NA样本密度函数的核估计方法,构造了一类单边截断型分布族参数函数的EB估计,并建立了它的收敛速度,在一定条件下这个收敛速度可充分接近1.