京沪高速铁路生态现代化的思考——基于区域生态系统项目的技术经济评价模型

京沪高速铁路生态系统建设将是中国东部六省市率先实现生态现代化的重大契机,正外部性效应是京沪高速铁路生态系统项目技术经济评价的主要特征,管理部门有必要定量测算其复合生态系统的生态正外部性并使正外部效应内部化.根据京沪高速铁路生态系统的收益应该等于其具有私人品属性的正产品收益和具有正公共品属性的副产品收益之和这一原理,可以设计京沪高速铁路生态系统技术经济评价的三个主要指标,它不仅可以用于其项目评价,而且从理论上为政府最大限度地支持生态系统的发展,提供一个定量测度的工具.     

论邓小平对我国经济增长速度问题的独特认识

在如何科学认识经济发展规律,正确把握经济的增长速度方面,我们党有着十分丰富的经验和教训。邓小平在总结这些经验教训的基础上,对我国经济增长速度与社会文明进步、国家稳定发展和深化改革开放、经济快速发展与改善人民生活等许多重大问题,形成了非常深刻与独到的认识。     

微纳卫星组网星间链路设计及关键技术分析

微纳卫星组网应用可大幅度提高航天装备的能力,较单颗大卫星具有明显的优势。首先,介绍了国内外微纳卫星组网的研究情况,以组网侦察应用为例分析了星间测量与通信链路的技术需求,并进行了系统架构和体制设计;其次,在星座设计基础上开展系统仿真,并提出了一体化设备实现方案;最后,分析了微纳卫星组网系统中几项重要的关键技术及其解决方案,对系统的设计和工程实现具有参考价值。     

Mergers and acquisitions in the hotel industry: A comprehensive review

This study aims to evaluate the current status of merger and acquisition (M&A) studies in the hotel industry and propose directions for future research. Forty-six articles were identified from ScienceDirect, Scopus, and EBSCOhost including 31 empirical and 15 conceptual articles. We review these articles from five perspectives, namely, journal/year distribution, methodology, research context, theoretical foundation and major topics. Findings reveal most studies on M&As in the hotel industry (hotel M&As) focus on performance, motivation and objectives. Developed economies (DEs) are the major research contexts and quantitative approach is the dominant research method. To this end, we propose seven research directions that cover outstanding themes as follows: 1) exploring M&A process, 2) M&A performance assessment, 3) identifying M&A impacts on stakeholders, 4) examining cross-border M&As, 5) examining emerging economies (EE)-based M&As, 6) investigating macro environment impacts, and 7) premium determinants and their impacts on hotel M&As.     

Knowledge diversity and coordination: The effect of intrafirm inventor task networks on absorption speed

Research Summary: We combine the absorptive capacity and social network theory approaches to predict how intrafirm “whole” network characteristics affect the firm's speed of absorption of external knowledge to produce inventions. We start from the widely accepted view that distant, externally‐developed knowledge is difficult to absorb into the focal firm's own knowledge production. We suggest that high levels of intrafirm inventor task network diversity and task network density are essential for a diversity of knowledge inputs and coordinated actions regarding knowledge transfer, which in turn, reduces problems related to the absorption of knowledge—especially in the case of knowledge that is distant from the focal firm. The results of an event history study of 113 pharmaceutical firms that engaged in technology in‐licensing from 1986 to 2003 provide general support for our hypotheses. Managerial Summary: Firms keen to keep up with an uncertain and ever‐changing industry environment, can benefit from the speedy introduction of inventions. We examine how firms absorb licensed‐in technologies to nurture the rapid development of own related inventions. We show that a firm's absorption speed depends on the characteristics of the internal collaboration networks among the firm's inventor employees. More specifically, technologically diverse and well‐connected inventor networks improve the firm's ability to absorb external technologies quickly. This applies especially to externally acquired technologies that are unfamiliar to the firm. Depending on the distance of the acquired technology from the focal firm combined with speed‐inducing inventor network characteristics, our estimates suggest that firms can reduce the time needed for absorption by several months.     

中国企业海外并购的法律障碍及其对策研究

海外并购逐渐成为中国对外直接投资的主要形式。中国企业进行海外并购面临的法律障碍主要来自政府的特许审核方面、海外投资保险、反垄断审查和竞争政策、反收购风险、本国政府审批制度方面以及法律制度和法律文化的差异、经营阶段的法律风险等方面。为促进中国企业海外并购，从宏观方面应制定和完善相关法律法规，从企业层面应重视与海外并购相关的法律问题。     

Acquisition experience, board characteristics, and acquisition behavior

Literature on acquisition places more concern on the consequence of an acquisition event and pays less attention to what factors influence the motive for initiating the acquisition strategy of a firm. Through the lenses of organizational learning and corporate governance theories, the study examine whether the prior acquisition experience and board characteristics affect firms' acquisition behavior. Hypotheses are tested on a sample of 92 acquisition events of Taiwanese electronics firms during the period from 1997 to 2007 by employing the survival function model. Empirical results indicate that business acquisition experience positively influence the inclination of the acquirer adopting a subsequent acquisition, while board characteristics do not relate to the likelihood of the acquirer making a subsequent acquisition. These findings provide theoretical and managerial implications for organizational learning and corporate governance theories in general and acquisition management in particular.     

“模糊+PI”控制技术在开关磁阻电动机调速系统中的应用

着重研究“模糊 +PI”控制技术在开关磁阻电动机调速系统中的具体应用 ,对解决开关磁阻电动机调速系统的显著非线性问题 ,提高开关磁阻电动机调速系统动态特性做了探讨 ,为开关磁阻调速电动机向更宽、更广的应用领域发展提出了自己的见解 ,以供进一步研究开关磁阻电动机调速系统参考。     

企业购并行为中的税收政策效应

本主要分析所得税对企业市场购并行为的影响。国外学所分析企业购并时,通常假设市场完全竞争,企业的决策不受非市场因素的干扰。他们认为,企业购并中,购并方的收益率只受两个因素的影响,即企业已分配股息的纳税比率和资本利得税率。笔从两方面对以上模型进行了修正：一是修正了其中“债务利息可以全部税前扣除”的假设前提,二是修正了被购并方在交易中的交易条件。以上修正使模型能够更加准确地描述中国的现实经济环境,也得出了完全不同的结论。     

提高热敏打印机性能的新方法

打印密度和打印速度是衡量一台打印机性能的重要指标,文章论述了如何在打印机原有硬件结构基础上,通过改变打印头电机驱动控制方式来提高打印密度;采用软件优化设计,优化打印头移动轨迹,加快打印速度,从而提升打印机性能。