一种镀锌板生产线电气传动控制系统

介绍了镀锌板生产线的工艺流程及其对电气传动的要求，采用PLC对镀锌板生产线的张力和带速进行协调控制，对电气传动控制系统的活套带重补偿和控制算法作了论述。本系统在实际使用中可靠性高，经济效益好，是一种适用的镀锌板生产线电气传动控制系统。     

The coopetition paradox and tension in coopetition at multiple levels

This article explores the nature of the paradox inherent in coopetition; that is, the simultaneous pursuit of cooperation and competition between firms, and emanating tensions that develop at individual, organizational, and inter-organizational levels. We dissect the anatomy of the coopetition paradox to discover how it materializes by creating an external boundary (i.e., via unifying forces) and internal boundaries (i.e., via divergent forces). After explaining the coopetition paradox, we distinguish tension from paradox and submit that tension comprises both positive and negative emotions simultaneously, also known as emotional ambivalence. Finally, we recognize that emotional ambivalence in coopetition prevails at different levels, and vary in its level of intensity and persistency in relation to different contexts. We employ illustrative cases to ground our propositions empirically. This article provides understanding on concepts, expects to incite fruitful dialogue, and fuels further studies on inter-firm paradoxes.     

Managing tensions in coopetition

Tensions are natural in coopetitive business relationships that simultaneously involve cooperation and competition. The purpose of this study is to investigate how tensions are managed in coopetitive business relationships and examine the potential outcomes of the management of such tensions. The study will focus on various kinds of coopetitive relationships and how the management of the different tensions produces specific outcomes. The empirical study is based on comparative case study research on coopetitive business networks that features two different kinds of cases. The findings of the study contribute to coopetition research by identifying several new perspectives on tensions. Different levels of cooperation and competition in a coopetitive relationship as well as other underlying issues cannot alone determine tensions, but aspects such as the management of tensions are crucial. Most tensions are managed by using styles of competition and avoidance and result in mixed outcomes, which implies both positive and negative perceptions.     

Sources and management of tension in co-opetition case evidence from telecommunications satellites manufacturing in Europe

Co-opetition is filled with tension due to inherent contradictory and opposing forces. In this research, we develop a multi-level conceptual framework that helps to understand key drivers of tension in co-opetition and key approaches to managing the tension. We combine literature-based conceptual arguments and insights from in-depth study of one exemplar case of co-opetition between Astrium (EADS group) and Thales Alenia Space (Thales group) within the sector of telecommunications satellites manufacturing in Europe. Our findings highlight multiple sources of co-opetitive tension at different levels. Further, our research shows that a mixed organization based on both separation and integration of competition and cooperation is helpful to understand and effectively manage tension in co-opetition. This paper offers case-based rich insights on the sources and management of tension and has important implications for the design and conduct of future empirical research.     

西藏与内地区域发展成本差异比较

运用生态应力指数计算法、国民经济核算方法和典型指标对比法,对西藏与内地以及三大地带、七大经济区等整体和不同产业的发展成本进行了分析,结果显示,西藏与内地整体以及三大地带、七大经济区的发展成本存在显著差异,三种计算方法计量出的西藏经济发展成本与全国平均水平的差异具有一致性,但不同计算方法下不同产业的发展成本及其与全国平均水平的差异则比较大。     

From totalitarianism to capitalism – the case of IFRS adoption in Vietnam

We investigate the strategic process of contextualisation of International Financial Reporting Standards (IFRS) in an economy transitioning from totalitarianism to capitalism – Vietnam – paying attention to tensions between actors involved in the process. This study employs the framework suggested by Puxty et al. to analyse the behaviour of actors of the State, Market, and Profession. We find that Market's needs trigger the IFRS contextualisation, which is institutionalised by the state. IFRS‐oriented rules undergo ‘reality tests’ and are tailored to fit the local context. Despite active interactions between the actors, the dominant role of the State results in some tensions.     

商业银行体系稳定性与竞争程度之测度研究

银行业的市场结构、竞争程度对银行的稳定性究竟起什么样的作用，是现今国际上讨论较多、但尚未达成一致意见的问题。运用相关数据对中国银行业情况进行实证分析，可得出集中的市场结构、和缓的竞争更有利于银行业稳定的结果。     

自适应解耦控制在凹印机张力控制系统中的应用

凹版印刷机张力控制系统是一个非线性、强耦合、时变性的复杂系统,用普通的PID难以达到理想的控制效果。本研究通过建立凹印机张力控制模型和驱动电机模型,设计了一种基于解耦控制原理的自适应解耦控制算法,根据偏差和偏差变化率来实时自适应追踪调整PID控制器参数,有效提高了张力控制系统性能和速度,是一种简单易行的控制算法。     

Engaged Scholar(ship) in purchasing and supply management (PSM): Creative tension or squeezed in the middle?

Purchasing and supply management research influences practice through the advancement of knowledge and theoretical principles and is positioned as an academic discipline. For the individual researcher, it calls for skills and experience that can be associated with engaged scholarship. This paper explores tensions inherent in engaged scholarship, that arise during the quest to interact closely with professionals to ensure relevance and impact while living up to research quality criteria. The paper concludes that the individual researcher in a field such as PSM is easily left with guidelines that point in multiple directions regarding personal achievement and institutional merits.