LFMCW雷达信号多周期模糊函数分析

给出了LFMCW雷达信号的多周期模糊函数,并与单周期信号进行了比较。讨论了在单周期和多周期的模糊函数联系,沿主轴切割模糊函数的性质和体积有限方面上两者特征的差别。仿真结果表明,增大周期可提高多普勒分辩力,但不能改善时延分辩力。     

百色水利枢纽工程库区经济开发探索--桂西区域经济发展研究之一

依托库区环境是库区经济开发的基础;构建可持续发展的生态产业体系是库区经济开发的核心;库区经济开发需要从整体上正确把握和处理各种关系.     

中国早期现代化进程延误的原因探析

近代史上中国的早期现代化进程一误再误,其原因是多方面的,有中国内在的原因中国传统文化的束缚、传统政治经济结构的制约、"文化自我中心主义"心态的阻抗、现代化主导者保守性决策的阻滞等,也有外来的影响即西方资本主义渗透和帝国主义侵略的羁绊.我们不能只强调其中的内在因素也不能片面夸大外来的影响,正确认识这一问题,旨在进一步解放思想、深化改革、扩大开放,为当前正在进行的中国社会主义现代化建设提供认识根据.     

一类时滞微分方程的全局吸引性

考虑时滞微分方程 :dN(t)dt =r(t)N(t) [1 -N( g(t) )k ]α,t≥ 0 .其中α≥ 1是两个正奇数之比 ,获得了保证其每一正解趋于正平衡点的一族充分条件     

学习、探索、提高—对国际合作计划生育结合项目管理的认识

从具体参与国际合作计划生育结合项目实践的角度 ,探讨总结结合项目的特点、成果和管理思路     

计划生育结合项目的资源整合与可持续发展

国际合作计划生育结合项目在我国取得了显著成效 ,为农村计划生育工作的综合改革提供了先导性经验。在回顾结合项目发展的基础上 ,对结合项目的资源整合与可持续发展之间的关系进行理性的分析和思考 ,指出资源整合不仅是结合项目实施过程中的典型特征 ,而且是结合项目可持续发展的重要基础     

The Effects of Information Overload on Software Project Risk Assessment*

Managers are responsible for providing effective information technology governance of the software development process. Ineffective governance leads to serious resource misallocations and negative consequences concerning Sarbanes‐Oxley compliance. In order for managers to make informed decisions about software development projects, they often need more information than is available through normal information channels, that is, they need an in‐depth review of the at‐risk project. Such in‐depth reviews, however, are costly. Hence, accurate identification of at‐risk projects for in‐depth review is critical to management's ability to govern. This research considers how two factors, information load and time pressure, affect the quality of the project‐selection process. We examine quality by observing the decision strategies involved and then relating these strategies to subsequent decision making. An experiment was conducted with experienced information systems auditors using a combination of policy‐capturing and computerized process‐tracing techniques. The participants in our study cope with information overload by accelerating their decision‐making process and adopting noncompensatory decision processes. Contrary to prior research, our process‐tracing analysis suggests that participants rarely filter information, thus implying that decision makers are unable to process all the information. Coping by resorting to noncompensatory strategies did not decrease decision quality unless combined with accelerated information processing. Participants also increase their weight on the software project risk factors that they repeatedly access and that they view for longer periods of time. The theoretical contributions and practical implications regarding what actions managers can take to reduce the negative impact of information overload are discussed.     

Economic Evaluation of Systems that Expedite Inventory Information

Information delays exist when the most recent inventory information available to the Inventory Manager (IM) is dated. Such situations arise when it takes a while to process the demand data, count the inventory, and pass the results to the IM. We show that the optimal total inventory‐related cost decreases when the length of the information delay decreases. The amount of the decrease is an important datum for an IM interested in considering whether or not to invest in reducing the delay. The investment is required to finance design and acquisition of an information (collection and dissemination) system that can reduce the information delay. Such systems include phone calls, business meetings, and the use of information collection mechanisms such as radiofrequency identification tags.     

Can Donor PIUs Support Country Systems?

The OECD's Paris Declaration (2005) discouraged donor project implementation units (PIUs) which are not integrated into government. But little is known about the behaviour and effects of PIUs integrated into government. Are they efficient? Do they support country systems? This article responds to these questions using research comparing two streams of implementation of schools investments in Malaysia's Eighth Plan 2001–2005, one via government alone and the other via a World Bank PIU integrated into government. It emphasises the conflicts which can exist within country systems, and how these affect the choices which a donor faces in seeking efficient implementation of a project while supporting country systems.     

论航空旅客的精神损害赔偿

航空旅客在空难中死亡、伤残、惊吓、行李毁损或遗失、航班延误、超售和拒载等情形下都可能遭受精神损害,由此引发了不同类型的精神损害赔偿。航空旅客精神损害赔偿是否应有限额,立法与司法存在差异;航空旅客精神损害事实、因果关系、赔偿数额以及法律适用的判定等均与法官自由裁量权密切相关。