青海省湟水流域上游段“2010.07”暴雨洪水简析

湟水是黄河的一级支流,干流两侧沟壑发育,支流较多,水系发育.2010年7月6日,青海省海晏县、湟源县部分地区出现短时强对流天气,致使湟水流域上游段发生了特大暴雨洪水,造成了重大人员伤亡,农业、水利、交通、电力、通讯等基础设施遭受严重损失.本文根据“2010.07”暴雨洪水实测资料,对产生的暴雨和洪峰过程进行了初步分析,对于研究区域性洪水规律和防洪工程的规划设计提供依据.     

“李嘉诚”是怎样练成的——自建摄影工作室促进平面设计专业学生创业创新意识的提升

创建校内的摄影工作室,既能为校内师生提供方便,又能促进工作室成员素养的提升。创建摄影工作室,在填补了学校这一服务功能空白的同时,平面设计专业学生又能在学校内实现创业实践活动,极大地提升了本专业的生产力和知名度。     

金融危机触发白色家电企业发展客户关系管理新契机

金融危机使得整个家电行业都受到了严重的冲击,白色家电企业更是面临着原材料涨价、市场饱和、利润缩水等困境。本文首先论述了金融危机对白色家电企业的影响,然后提出了客户关系管理的应对出路。针对白色家电企业的特点,着重论述了企业实施CRM基本目标、基本框架以及实施后的功能效果等问题,为白色家电企业找到新的利润增长点、走出金融危机、成功实现"V"型反转提供了有价值的参考。     

发电机同期并网实验接线的矢量分析

同期并网是电力系统重要并经常进行的操作,其工作原理及矢量分析方法是电气工程及其自动化的本科生必须掌握的基本理论和基本技能.文章就工业现场常用的"倒送电"方法来检查同期接线的正确性,并采用电压矢量的分析方法来总结同期接线规律.     

父教缺失的研究现状及应对策略

在我国,父教缺失现象较为严重.导致父教缺失的因素很多,但父教观念缺失是其根本原因.父教缺失的孩子容易违法犯罪,父教缺失还危害到孩子的性别角色发展、同伴关系和心理健康等.加强父教可以从两个方面着手,一是更新父教观念,二是提供保障支持.     

Are males always better than females in mental rotation? Exploring a gender belief explanation

Males outperform females in the Mental Rotation Test (MRT) for biological, strategic and cultural reasons. The present research tested a motivational explanation with the hypothesis that females could do better when induced to have positive beliefs and expectations. All-female and all-male samples were divided into six groups, each having listened to different instructions: 1. men are better than women at this task; 2. women are better than men; 3. control instructions with no gender reference. Each group was further allocated to either the easy or the difficult task expectations condition. Experimental manipulation affected performance differently in relation to gender. Women's performance was affected by positive instructions about gender. Men were affected by instructions about the task difficulty. Women improved performance and reached men's scores in the MRT when they were led to believe they were better than men.     

新课程理念下的小学信息技术课堂教学

在新课程理念的指导下,信息技术教学重视培养与信息社会相适应的信息技术素养,引导学生自主,协作,探究学习。本文浅谈在新课程理念下小学信息技术课堂教学在具体实施过程中的一些体会。     

西部文科高校科研管理信息网络系统的研发与应用—以广西财经学院为例

科研是高等院校的三大任务之一,科研管理的信息化、网络化是提升学校科研水平的必由之路.针对科研管理存在的问题,作为数字化校园建设的一部分,开发适合西部文科高校科研工作管理信息化、网络化的新系统.文章以广西财经学院的研发和应用为例,分析了系统建设的主要内容及系统运行的效果     

高校图书馆在构建和谐校园文化中的作用

本文从十七大确定的和谐文化建设的目标任务出发,介绍了大学图书馆在和谐校园文化建设中的重要地位,并结合大学校园文化建设,探讨了大学图书馆如何在促进和谐校园文化建设中发挥作用.     

Analysis of dipole-like ultra high frequency RFID tags close to metallic surfaces

It is a challenge for passive RFID tags to be mounted on the surface of metal because the parameters of tag antennas, such as the impedance matching, the radiation efficiency and the radiation pattern, are seriously affected by the metallic surface. This paper presents the characteristics of the dipole-like antennas of ultra high frequency （UHF） radio frequency identification （RFID） tags that are placed close to metallic surfaces. The finite element method （FEM） and method of moment （MoM） were used to simulate the changes of the antenna parameters near the metallic surface. Two typical dipole-like antennas close to the metallic surface, a closed loop antenna and a loaded meander antenna, were modeled, and the performance was evaluated. Experiment was carried out and the results were in good agreement with the simulation, showing that a distance of 0.05λ-0.1λ （λ is the free space wavelength） from the metallic surface could make the dipole-like UHF RFID tag performance be acceptable.