PBL教学法与案例教学法在高校商科教学中的结合应用

PBL教学法和案例教学法是商科教学中较为常见的方法,本文分析了两种方法的应用以及各自存在的局限性。文章以商科市场营销学为例,为解决各自存在的问题,将两种方法在实战中相结合,以实现课堂效果的优化,满足现代社会对商科专业人才的要求。     

基于致动线模型的风力机尾流场数值模拟

本文基于致动线模型求解三维Navier-Stokes方程的方法,对NTNU的"BlindTest1"风力机尾流场进行了数值模拟。该方法避免了求解实际叶片的表面边界层,无需使用动网格,从而大大降低了网格量和计算时间,非常适用于尾流场的模拟。该文所有计算均基于OpenFOAM自定义的求解器ALMpisoFoam。推力和功率的计算值与实验值吻合得很好,验证了求解器的正确性。3个典型叶尖速比下的轴向诱导因子、湍动能和尾涡结构等也在文中进行了简要分析。     

Crowdsourcing and work: individual factors and circumstances influencing employability

The development of a fast and reliable Internet, new technologies online payment systems, and changes in work structure that enable and demand flexible working patterns have driven a move to a new form of Internet‐enabled labour exchange called crowdsourcing. Evidence from an in‐depth qualitative study is presented, focusing on selected users' interactions and experiences of working on two UK‐based crowdsourcing platforms. The paper shows that workers engaged in this form of labour exchange need to deploy existing employability skills and networks to effectively meet the challenges, and take advantage of the opportunities, that crowdsourcing presents. Individual factors and circumstances emerge as paramount for workers' continued engagement in this form of employment. Using selected components from an employability framework, the findings suggest that crowdsourcing can offer new pathways to practising skills and enhancing employability for some workers.     

The Road to Sustainability: Exploring the Process of Corporate Environmental Strategy Over Time

We explore corporate environmental strategy over time, investigating the patterns of evolving environmental investment decisions. Longitudinal case studies provide evidence that environmental strategy evolves through a feedback process, wherein outcomes of earlier decisions have an impact on subsequent decisions. Specifically, positive feedback from outcomes like innovation triggers higher goals, enhancing the undertaking of advanced investments, whereas negative feedback from outcomes, such as increased costs, decelerates the adoption of further investments. The study points to an emergent view of environmental strategy, where capabilities that are gradually developed in concomitance with environmental outcomes lead to an upgrading of environmental goals, thus triggering the feedback process. The process eventually culminates in higher levels of environmental conduct, being more and more integrated with business strategy and competitive advantage. Managers' values and environmental attitudes influence environmental decisions and actions, affecting the acceleration of the feedback process and the magnitude of responses. Managerial implications are discussed. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment     

映秀湾电站水轮机转轮沙水流动数值模拟

为了研究映秀湾水电站水轮机内部沙水流动特性,对水轮机进行沙水流动数值模拟,分析水轮机转轮部分沙水流动情况。研究结果表明,转轮内叶片进水边及出水边靠下环处是泥沙分布的主要区域。研究结果对水轮机泥沙磨损的研究具有指导意义。     

网络流行语中民众网络话语权研究

网络流行语作为网络文化的产物，映射当下现代文明的各类现状。通过挖掘网络流行语内在起因、情境和心理，以反沉默螺旋法则为理论依据，研究当代民众网络话语权的产生、表达方式和表达心态以及相关应对机制。希望通过本研究对我国社会行政管理科学化进程有所助益。     

汽轮机密封技术的应用与发展

在汽轮机上有个很重要的部件就是汽封,汽封主要起到密封的作用,其密封能力的好坏影响到蒸汽是否泄露,而蒸汽为汽轮机提供动力,因此其密封性能的高低会影响到汽轮机获得动能的大小。本篇文章就是对汽轮机的密封技术进行探讨。     

Hybridization: Understanding the microdynamics of a postacquisition integration process

There is no shortage of theoretical or empirical research on mergers and acquisitions (M&A). Knowledge on the subject has grown substantially in recent decades. However, the integration of firms involved in M&A remains a challenging and often unsuccessful process. In addition, there is a scarcity of research on temporal dynamics within integration projects. This article reports on the postacquisition integration of a business school into a university using the concept of organizational hybridization as a theoretical lens. The aim was to identify the microdynamics that occurred during integration. We conducted an inductive case study, interviewing professionals involved in the integration process, analyzing a wide range of documents, and conducting participant observation over 6 years. Field research revealed that different organizational components underwent distinct hybridization processes that were characterized by different degrees of conflict. This study contributes to the understanding of the microdynamics that occur in postmerger or postacquisition integration processes, focusing on the complex adjustments inherent in these developments.     

高质量发展视角下区域创新能力的提升路径 ——以南京市江宁区为例

我国经济已由高速增长阶段转变为高质量发展阶段,实现高质量发展是新时代我国经济发展的根本要求。高质量发展与创新驱动紧密关联,必须多举措协同提升区域创新能力。区域创新能力是指一个地区将知识转化为新产品、新工艺、新服务的能力,代表了创新要素在一定区域内聚集、整合以及推动区域可持续发展的基本能力。为了有效提升区域创新能力,必须强化区域创新的综合保障、构建区域创新综合生态体系、促进创新创业项目孵化与成果转化、强化区域制造业发展相关的创新活动等。以南京市江宁区为例对此进行了分析,该区积极实施战略科技引领计划,不断强化创新工作,通过促进区域创新平台建设、区域创新的服务支撑体系构建、高端创新资源在区域的聚集、区域制造业创新发展及合理布局等,不断增强区域创新能力,有效支撑了区域高质量发展。     

Extendible stock loan

In this paper, the model of extendible stock loan with forbearance is proposed. The loan is extendible, so as to prevent immediate losses or to prevent subsequent price drop; while the forbearance is granted only when the pledged share’s value is above threshold, so as to mitigate the risk-taking behavior induced by the extension. The non-synchronization of the liquidation of insolvent stock loans also alleviates the downward leverage spiral in a market downturn. Numerical analysis shows that fair extendible stock loan rates increase with the forbearance level as well as extension period, and loan rates are quite sensitive to the change of asset volatility and debt ratio. For lenders waiving the interest rates during extension period, their burden grows with extension rapidly when they grant looser forbearance and when asset volatility or loan-to-value is higher. Some suggestions are made accordingly. First, lenders offering uniform extendible loan rate can let borrowers choose between looser forbearance with shorter extension, or tighter forbearance with longer extension. Second, if the loan rate is priced fairly, lower margin requirement can only be accomplished with tighter forbearance. More looser forbearance worth higher rates.