东北老工业基地社会工作专业教育初探

发展东北老工业基地社会工作教育事业的关键是协调好各种关系。主要有:在坚持专业化办学的基础上实现社会工作专业教育的本土化;突出对学生实践能力的培养;科学地设置专业课程;根据地区的特殊需求培养人才类型;力争得到政府的积极支持;培养社会工作专业教师和学生的“利他主义”的价值观等专业理念。     

Uncertainty Analysis for Computer Model Projections of Hurricane Losses

Projecting losses associated with hurricanes is a complex and difficult undertaking that is wrought with uncertainties. Hurricane Charley, which struck southwest Florida on August 13, 2004, illustrates the uncertainty of forecasting damages from these storms. Due to shifts in the track and the rapid intensification of the storm, real-time estimates grew from 2 to 3 billion dollars in losses late on August 12 to a peak of 50 billion dollars for a brief time as the storm appeared to be headed for the Tampa Bay area. The storm hit the resort areas of Charlotte Harbor near Punta Gorda and then went on to Orlando in the central part of the state, with early poststorm estimates converging on a damage estimate in the 28 to 31 billion dollars range. Comparable damage to central Florida had not been seen since Hurricane Donna in 1960. The Florida Commission on Hurricane Loss Projection Methodology (FCHLPM) has recognized the role of computer models in projecting losses from hurricanes. The FCHLPM established a professional team to perform onsite (confidential) audits of computer models developed by several different companies in the United States that seek to have their models approved for use in insurance rate filings in Florida. The team's members represent the fields of actuarial science, computer science, meteorology, statistics, and wind and structural engineering. An important part of the auditing process requires uncertainty and sensitivity analyses to be performed with the applicant's proprietary model. To influence future such analyses, an uncertainty and sensitivity analysis has been completed for loss projections arising from use of a Holland B parameter hurricane wind field model. Uncertainty analysis quantifies the expected percentage reduction in the uncertainty of wind speed and loss that is attributable to each of the input variables.     

教育服务理论与学校管理理念转变的思考

以教育服务理论为依据,从经济学角度,阐述了教育服务是教育产品,学校是教育服务产品的生产者和供给者,学生是教育服务产品的消费者和需求者。指出学校应以经营的理念管理学校,以消费者(生源)为本,充分发挥学校教育服务的优势,向市场和消费者提供品牌和特色的优质的教育服务,以吸引更多的消费者。     

论在公共服务中引入竞争机制

我国政府在提供公共服务时存在很多不尽人意的地方,要改变这种状况就必须在公共服务中引入竞争机制。在公共服务中引入竞争机制有打破垄断、政府管制等方法,竞争有公共部门与私人部门竞争和公共部门之间竞争两种类型。而要引入竞争机制,并使其真正发挥作用还必须有相应的配套措施。     

综合实践活动课程实施的问题与对策

教师的课程理论素养较差,与综合实践活动课程实施的要求不相适应;综合实践活动课程的实施缺乏相关的制度保障和社会支持,是综合实践活动课程实施中存在的主要问题.解决问题的对策是:加强对教师的培训,提高教师实施综合实践活动课程的能力;完善学校相关教研、培训及管理等制度,为综合实践活动课程的实施提供制度保障;建立良好的社会支持和保障系统,充分利用各种资源,为综合实践活动课程的实施创造更好的条件.     

A Two-dimensional Heat Transfer Model for Atmosphere-land System in the Lake-dominated Alaskan Arctic

1 Introduction Shallow tundra lakes are one of the dominating landscape features in the Alaskan Arctic. They typically cover 20% of the total area of the North Slope of Alaska, and up to about 40% in the coastal plain [1,2]. Many lakes are, in their entirety or in part, shallower than the maximum annual ice thickness, consequently, some ice freezes completely to the lake bottom, nevertheless, large areas of water are deeper than the maximum ice thickness and the ice remains afloat througho…     

Fuzzy K-means clustering models for triangular fuzzy time trajectories

We focus our attention on the classification of fuzzy time trajectories with triangular membership function, described by a given set of individuals. To this purpose, we adopt a fullyinformational approach, explicitly recognizing the informational nature shared by the ingredients of the classification procedure: the observed data (Empirical Information) and the classification model (Theoretical Information). In particular, by supposing that the informational paradigm has a fuzzy nature, we suggest three fuzzy clustering models allowing the classification of the triangular fuzzy time trajectories, based on the analysis of the cross sectional and/or longitudinal characteristics of their components (centers and spreads). Two applicative examples are illustrated.     

论政治语言的结构

分析和研究政治语言的系统结构及结构要素之间的相互关系 ,是研究政治语言的重要内容 ,有利于更好地认识和把握政治语言。政治语言结构是一种特殊的层级系统 ,其要素包括符号、符号系统、符码、文本、语境和话语。政治语言结构的要素之间相互作用、相互关联 ,共同构成了政治语言的系统 ,并以其特有的方式表达政治意义 ,服务于政治活动     

论当前的物欲型犯罪

当前的物欲型犯罪有其经济根源和直接原因 ,其动机、行为方式及侵害对象具有一些带规律性的特点 ;犯罪人在市场经济中的地位 ,决定了其犯罪动机和行为方式。尤其少部分身居高位、掌握实权的领导干部或国有企业负责人对个人财富、权力的不当追求 ,导致权钱交易、化公为私 ,造成国有财产的大量流失。这种犯罪不断发生的重要原因是 ,国有财产所有者虚位 ;应从源头上遏制此类犯罪的蔓延     

两相交流伺服电机动态性能的研究

对于两相交流电机的速度伺服系统,分析在幅值控制时系统的机械特性与调节特性,提出了影响两相交流伺服电机动态性能的因素是系统的机械时间常数及增益系数的变化。为了防止因机械时间常数及增益系数的变化而引起的动态特性变差,采用一种简易跟随模型参考自适应控制方法,通过模型与自适应机构的调节作用,改善两相交流伺服电机系统的动态特性和控制精度。计算机仿真结果表明,电机的动态持性良好。