液压与气动课程CDIO教学模式探讨

探讨了基于CDIO理念的液压与气动课程教学模式,包括课程分层次教学方法设计、课程教学内容模块化设计、课程教学效果考核细化设计。通过液压与气动课程CDIO教学模式实践,可以进一步提高课程的教学质量和效果,有利于培养和加强学生的实践能力和综合素质。     

A STRUCTURAL RISK‐NEUTRAL MODEL FOR PRICING AND HEDGING POWER DERIVATIVES

We develop a structural risk‐neutral model for energy market modifying along several directions the approach introduced in Aïd et al. In particular, a scarcity function is introduced to allow important deviations of the spot price from the marginal fuel price, producing price spikes. We focus on pricing and hedging electricity derivatives. The hedging instruments are forward contracts on fuels and electricity. The presence of production capacities and electricity demand makes such a market incomplete. We follow a local risk minimization approach to price and hedge energy derivatives. Despite the richness of information included in the spot model, we obtain closed‐form formulae for futures prices and semiexplicit formulae for spread options and European options on electricity forward contracts. An analysis of the electricity price risk premium is provided showing the contribution of demand and capacity to the futures prices. We show that when far from delivery, electricity futures behave like a basket of futures on fuels.     

基于回归分析法的南京市耕地面积变化影响因素分析

首先主要运用Excel预测南京市耕地面积减少的趋势;其次,通过文献阅读确定影响南京市耕地面积变化的影响因素,进而利用统计学方法建立了耕地面积与各个影响因素之间的回归分析模型;然后对模型所得结果的相关性进行统计性分析,剔除可能具有相关性的影响因素;最后把对各影响因素在南京市耕地面积变化的过程中按所起的正、负相关影响进行归类分析。旨在为南京市在抑制耕地面积锐减现象对相关因素的控制上提供相关的参考依据。     

美国加州财政危机对我国地方债务风险管理的启示

加利福尼亚州是美国经济最发达的州,相当于世界第八大经济体,然而近年来加州政府却挣扎在濒临破产的边缘。长期的入不敷出是导致加州财政危机的直接原因,但背后却隐藏着美国联邦财政体制、税制结构、福利模式、两党政治博弈、三权分立的行政效率等深层次的原因。加州财政危机是美国政治、经济、社会的体制矛盾的集中反映。近年我国地方政府债务规模迅速增大,高速的经济增长掩盖了大量风险。加州财政危机对治理我国地方债务风险具有重要的借鉴意义。     

浅析市政工程项目管理

在市政工程项目管理中,要取得高水平的工程质量,创造社会效益,取得经济效益,项目经理不仅要管好工程中的人,财,物,更要管好工程的进度和协调,只有做好工程项目管理,建筑单位才能在市场竞争中立于不败之地。     

论银行关系借贷的价值与风险

在信贷市场上,商业银行与企业通过保持密切的联系来沟通信息,提高融资效率,关系借贷的方式被普遍采用.本文具体分析了关系借贷对银企双方的价值以及其内在的风险因素.交易各方只有按照市场规律的要求,共同维系健康、稳定与和谐的银企关系,才能规避风险,获得收益.     

Breakthrough thinking from inside the box

Companies often begin their search for great ideas either by encouraging wild, outside-the-box thinking or by conducting quantitative analysis of existing market and financial data and customer opinions. Those approaches can produce middling ideas at best, say Coyne, founder of an executive-counseling firm in Atlanta, and Clifford and Dye, strategy experts at McKinsey. The problem with the first method is that few people are very good at unstructured, abstract brainstorming. The problems with the second are that databases are usually compiled to describe current--not future--offerings, and customers rarely can tell you whether they need or want a product if they've never seen it. The secret to getting your organization to regularly generate lots of good ideas, and occasionally some great ones, is deceptively simple: First, create new boxes for people to think within so that they don't get lost in the cosmos and they have a basis for offering ideas and knowing whether they're making progress in the brainstorming session. Second, redesign ideation processes to remove obstacles that interfere with the flow of ideas--such as most people's aversion to speaking in groups larger than ten. This article offers a tested approach that poses concrete questions. For example, what do Rollerblades, H?agen-Dazs ice cream, and Spider-Man movies have in common? The answer: Each is something that adults loved as children and that was reproduced in an expensive form for grown-ups. Asking brainstorming participants to ponder how their childhood passions could be recast as adult offerings might generate some fabulous ideas for new products or services.     

Wage differences between Austrian men and women: <Emphasis Type="Italic">semper idem?</Emphasis>

In most OECD countries, the wage gap between men and women has narrowed during the past two decades. Developments of the last 20 years, e.g., increased labour market attachment of women or the introduction of equal pay laws, may have reduced the gender wage gap. We investigate the extent, persistence, and socio-economic determinants of the gender wage gap in Austria, for the years 1983 and 1997. Using wage decomposition techniques, we find that the average gender wage gap was almost as high in 1997 as it was in 1983. Not accounting for differences, the gender wage gap dropped from 25.5 to 23.3% of men’s wages. Taking observable differences between men and women into account, we estimate that the mean gender wage gap that cannot be explained, i.e., discrimination against women, dropped from 17 to 14% of men’s wages. A decomposition of the gender wage gap over time indicates that both returns to human capital and less discrimination were responsible for the narrowing of the gender wage gap.

网络嵌入、绿色动态能力与企业绿色创新——环境规制和管理者环境注意力的调节作用

基于动态能力理论、社会网络理论和制度理论等,探讨网络嵌入对企业绿色创新的影响,并进一步考察绿色动态能力在其中的中介作用以及环境规制、管理者环境注意力的调节作用。运用多元回归和Bootstrap方法进行实证检验,结果显示：结构嵌入和关系嵌入对企业绿色创新均具有显著影响;绿色动态能力在结构嵌入、关系嵌入与绿色创新之间起中介作用;环境规制、管理者环境注意力均正向调节绿色动态能力与绿色创新间关系。     

基于偏离-份额法的河南制造业竞争力分析

制造业是地区工业的重要组成部分,也是国民经济发展的支柱.本文运用偏离-份额分析法对河南制造业的发展状况进行分析,并与全国的发展状况进行比较,从结构和竞争力两个角度分析了制造业内部问题所在,以探讨河南制造业发展的重点,并结合实际为河南制造业的健康发展提出建议.