8 mm点聚焦透镜天线的工程设计

根据等离子体密度的测量要求,设计了一种工作于8mm频段的点聚焦透镜天线。对系统进行仿真和实验验证,仿真及实验结果均证实了设计的可行性和正确性,高次模可以忽略的理论也得到了有力的证明,为天线的工程设计提供了一定的理论和参考价值。     

重庆市培育金融核心区：布局、路径与对策

金融核心区的培育是提升重庆金融集聚力和辐射力以及构建长江上游地区金融中心的关键因素.在审视金融核心区的概念、内涵和重庆市培育金融核心区的必要性、可能性基础上,运用大系统分析方法的原理,提出重庆金融核心区的规划布局和总体思路;基于产业集群理论探讨重庆金融核心区的培育路径与对策.研究认为,培育重庆金融核心区,要在运筹高端金融商务发展体系、夯实现代金融业发展平台、拓展金融业发展空间等三个方面合理布局金融产业,促进形成金融业产业集群,并优化金融生态环境和金融主体结构、强化金融资源共享和政府公共服务职能.     

高校学生欠费问题及解决思路探析

高校贫困生是指那些在校学习期间,因家庭经济状况支付学费和生活费比较困难甚至无力支付学费和保障最低生活费的学生。高校贫困生问题是当前我国高等教育事业发展中的焦点问题之一,也是社会各界广泛关注的热点问题之一。     

γ辐照Al~(3+):α-石英晶体的光吸收谱及其GOW心的色心电子能态

本文用水热法生长了Al~(3+):α-SiO_2石英晶体,测量了γ射线辐照赋色的晶体的吸收光谱。主要的可见吸收带位于2、61ev,2.07ev和2.30ev处。其中2、6ev和2、07ev吸收带是GOW心(即〔Al_(e+)〕°心)产生的色心吸收带。本文理论上计算了GOW心的电子能态。对应该心两个吸收带的理论值分别位于2、72ev和1.94ev与实验结果相符。     

台湾的金融改革及其启示

要本文在分析台湾实行金融改革动因的基础上，概述了台湾金融改革的内容，评述了台湾实行金融自由化的目的－建立区域金融中心的构想，并就这一改革给大陆带来的启示作出了思考。     

长三角区域合作建设国际制造中心的制度设计

各自为政的行政体制阻碍了长江三角洲经济一体化。用行政机制来调整长三角地区间的行政摩擦,有悖于一体化的实质。打造长三角国际制造中心,上海要大力发展现代生产者服务业和高科技产业,江浙要用产业集聚方式推进制造业崛起;只有实现长三角发展机制的一体化融合,才能实现大范围的规模经济和范围经济;学习欧共体务实的经验,区域合作要从具体的项目做起;关键是要实现长三角区域市场竞争规则的统一。     

Staff rostering in call centers providing employee transportation

We address the staff rostering problem in call centers with the goal of balancing operational cost, agent satisfaction and customer service objectives. In metropolitan cities such as Istanbul and Mumbai, call centers provide the transportation of their staff so that shuttle costs constitute a significant part of the operational costs. We develop a mixed integer programming model that incorporates the shuttle requirements at the beginning and end of the shifts into the agent-shift assignment decisions, while considering the skill sets of the agents, and other constraints due to workforce regulations and agent preferences. We analyze model solutions for a banking call center under various management priorities to understand the interactions among the conflicting objectives. We show that considering transportation costs as well as agent preferences in agent-shift assignments provides significant benefits in terms of both cost savings and employee satisfaction.     

国际航运中心航运服务信息整合研究

以航运高端服务为特征的伦敦和以航运基本服务为标志的新加坡、汉堡等国际航运中心都具有完善的航运服务信息整合能力,本质上也是国际航运信息整合中心。与发达国家相比,上海在国际航运中心航运信息整合范围、信息平台集成水平、权威信息发布和政策自由度等方面存在明显差距,未来需要尽快明确整合路径、落实保障措施。     

Pollutant Ground Concentrations of Nonneutrally Buoyant Particles

A methodology is suggested for the estimation of the mass density and the cumulative ground deposition of a nonvolatile, nonneutrally buoyant, air pollutant (liquid or solid) released from a polluted column (following an explosion caused during routine operation in, e.g., the chemical industry or due to any kind of hostile act) and deposited on the ground via gravitational settling. In many cases, the deposited mass due to gravitational settling constitutes a significant fraction of the original inventory released from the source. Implementation of the methodology in preliminary risk assessments can serve as an efficient tool for emergency planning for both immediate and long‐term measures such as evacuation and decontamination. The methodology considers, inter alia, an estimation of the critical particle diameter, particle size, and mass distributions along the polluted column. This methodology was developed to apply in rural regions since proper application of relevant meteorological input data can be accomplished mainly for such areas.     

浅谈如何强化应收账款的日常管理

应收账款是企业流动资产的重要组成部分,企业必须加强对应收账款的日常管理。本文从实施应收账款的追踪分析、认真对待应收账款的账龄、不断完善收账政策和建立应收账款坏账准备制度等方面提出了强化应收账款日常管理的措施。