翼尖尖点散射特性分析

为解决机翼翼尖等弱散射源所带来的雷达散射截面(RCS)贡献问题，针对典型机翼设计了几种不同的机翼翼尖方案，建立了典型翼尖数值模型。利用基于多层快速多极子算法（MLFMA）的FEKO软件，计算、分析不同方案翼尖外形在不同频段、不同方位角下的RCS量级，并优选出对机翼RCS贡献最低的翼尖外形方案。计算结果表明，针对典型机翼，从翼尖到翼根方向上15%处顺气流直切的翼尖外形方案，其翼尖尖点所带来的RCS贡献最小。     

Corporate governance and returns to emerging economy firm acquisitions in tax havens: An empirical test on Indian firms

Cross‐border acquisitions (CBAs) by emerging economy firms are known to yield positive stockholder returns. A nontrivial fraction of CBAs by emerging economy firms are in tax havens. We argue because of weak corporate governance in emerging economies and the secrecy afforded by tax havens, emerging economy firm CBAs in tax havens yield lower stockholder returns than their CBAs in nontax havens. We also argue the negative effect of tax haven destinations is greater for firms with greater business group ownership and for firms with greater foreign insider ownership. Furthermore, we argue the negative effect of tax haven destinations is mitigated for firms whose stock is actively traded in the market. Empirical tests in a sample of nearly 800 CBAs by Indian firms from 2002 to 2011 support our hypotheses. Our study contributes to a better understanding of stockholder returns to CBAs by emerging economy firms and the influence of corporate governance on these returns.     

Trends and Paths From Border Regions＂ The Frontier Centro-Castilla y Leon of Portugal and Spain

The objective of this paper is to determine whether the process of European Union （EU） integration has unleashed a new territorial dynamic with the convergence of border regions. Authors intend to analyze trends and trajectories of the Portuguese--Spanish border regions of the Center of Portugal and Castilla y Leon, particularly the municipalities of NUTS Ill and northern and southern Beira Interior （Central Region） and the provinces of the municipalities of Salamanca and Zamora （Region of Castilla y Leon）, in the last 20 years, given a set of demographic, economic, and social indicators, by using statistical analysis combined with contributions from the development processes established in these regions.     

Customer and Supplier Collaboration in Green Product Innovation: External and Internal Capabilities

Firms collaborate in green product innovation to develop products with less environmental impact. These products typically use less energy, have lower emissions and incorporate more environmentally friendly materials. In an industrial setting, firms often collaborate along the supply chain with customers and suppliers. This paper focuses on external and internal capabilities that firms need when collaborating in green product innovation. The paper builds on data from five large industrial firms in ten case studies, in which these firms collaborate with customers and suppliers to innovate green products to an industrial market. External and internal capabilities are investigated. The study points to the importance of finding a suitable partner. Partners need to have environmental expertise and contribute knowledge or technology that is new to the firm. Firms need to combine relational capabilities, such as trust, with contractual agreements in collaborative innovations. The findings point to the importance of knowledge management with the partner as well as internally in the firm. The study shows that no partner collaboration operates in isolation but is situated in a network context. Copyright © 2018 John Wiley & Sons, Ltd and ERP Environment     

探究农业发展方式转变的制约因素

目前,中国已经进入了加快改造传统农业、实现中国特色农业现代化道路的关键时刻,大力发展现代农业是农业大省摆脱发展困境的根本出路。但农业发展方式的转变不是一件容易的事,在转变过程中会遇到诸多制约因素,只有深入分析这些制约因素,并针对这些问题提出切实可行的解决对策,农业发展方式的转变才能达到预期的效果。     

水利旅游开发中的环境问题及控制对策

水利旅游是我国旅游业发展的一个新亮点,大力发展水利旅游,对我国水利经济可持续发展具有重要意义。文章阐述了水利旅游对水利经济可持续发展的重要意义,分析了水利旅游发展中的环境问题,提出了环境保护的对策。     

A compared R&D-based and patent-based cross impact analysis for identifying relationships between technologies

The planning of technological research and development (R&D) is demanding in areas with many relationships between technologies. To support decision makers of a government organization with R&D planning in these areas, a methodology to make the technology impact more transparent is introduced. The method shows current technology impact and impact trends from the R&D of an organization's competitors and compares these to the technology impact and impact trends from the organization's own R&D. This way, relative strength, relative weakness, plus parity of the organization's R&D activities in technology pairs can be identified.A quantitative cross impact analysis (CIA) approach is used to estimate the impact across technologies. Our quantitative CIA approach contrasts to standard qualitative CIA approaches that estimate technology impact by means of literature surveys and expert interviews. In this paper, the impact is computed based on the R&D information regarding the respective organization on one hand, and based on patent data representative regarding R&D information of the organization's competitors on the other hand. As an illustration, the application field ‘defence’ is used, where many interrelations and interdependencies between defence-based technologies occur. Firstly, an R&D-based and patent-based Compared Cross Impact (CCI) among technologies is computed. Secondly, characteristics of the CCI are identified. Thirdly, the CCI data is presented as a network to show the overall structure and the complex relationships between the technologies. Finally, changes of the CCI are analyzed over time. The results show that the proposed methodology has the potential to generate useful insights for government organizations to help direct technology investments.     

生态补偿基本理论问题探究——基于行政法学视角

生态补偿指的是行政主体对公民因涉及生态环境保护的合法行政行为而遭受的特别牺牲给与的填补和回复,性质属于行政补偿。其行政法理论依据包括生态行政法治理念和行政补偿理论。在此基础上,生态补偿的分类可以分为基于征收的生态补偿和基于财产权受限的生态补偿、全国性的生态补偿和区域性的生态补偿。不同的分类应当适用不同的补偿标准、方式、程序等。     

Conceptualizing and measuring consumer social responsibility: a neglected aspect of consumer research

Despite the availability of extensive research on a wide range of consumer‐related areas, some socially sensitive consumer issues have still remained relatively unexplored. Since literature review revealed a gap in the conceptualization of consumer social responsibilities, this article conceptualized, developed and validated a measurement scale for consumer social responsibility (CnSR), using a rigorous methodology suggested in the scale development literature. The study responded to the scholarly calls for further research in this area. Using a total sample of 491 respondents (53 respondents for pilot, 207 for exploratory survey and 231 for confirmatory survey), the study proposed a six‐dimensional measurement scale for CnSR, including: (1) social impacts, (2) solidarity, (3) critical appraisal, (4) supporting business growth, (5) environmental impacts and (6) action. It is argued that with ever growing impacts of corporate social responsibility on business practices, the validated measurement scale will contribute to the advancement of research in this nascent consumer area.     

农户家庭收入流动水平的结构差异及其影响因素分析*——基于“远亲”与“近邻”的视角

本文实证分析了农民收入流动水平的结构差异及其影响因素。结果表明：低收入阶层的农户家庭收入流动较强,高收入阶层农户家庭稳固其地位的能力逐渐增强,其家庭收入固化趋势较为明显。流动效应是导致农户家庭收入流动水平差异的主要原因,而结构效应中家庭经营性收入流动水平是缩小差异的最大贡献者。从家庭亲属亲密程度和近邻便利程度的视角来看,“远亲”不如“近邻”的现象在农户家庭收入流动水平上表现明显。家庭亲属性质、亲属关系层级分别对家庭经营性收入和工资性收入流动性存在较强的显著影响。而近邻就业机会越高,组织程度越强,地区区位优势越好,越有利于农户家庭收入流动水平的提升。