网络环境下如何深化高校图书馆的信息服务

在网络环境下,信息服务工作发生了深刻变化。要针对高校图书馆信息服务的主要内容,通过更新观念、提高素质、加强对读者的教育培训、调整馆内机构设置及业务功能、加强管理等措施来深化高校图书馆的信息服务。     

室内装修苯类污染的解析及防控

检测发现,在装修后的室内空气中,以苯类和甲醛为主的有害气体含量有几百种之多;根据办公室和住宅装修后苯污染实测数据和苯的毒性分析,对比国家标准提出防控途径和治理措施,旨在提高人们对室内苯系物污染的认识并有效地进行防控。     

我国环境行政执法障碍及对策研究

环境行政执法是环境保护的重要内容,但执法机关在执法过程中面临许多困难。环境行政执法的障碍主要有：地方政府不正确的政绩观和发展观而导致的地方保护主义,环境执法机关的权力有限,对违法行为处罚力度小,以及公众环保意识欠缺。本文拟在分析我国环境行政执法障碍的表现及原因基础上,提出突破环境执法障碍的对策,以期对环境保护法的修改、实施寻求理论依据。     

基于ANSYS的加工中心XH715动静态分析

数控机床结构影响加工质量,因此在机床机构设计中应满足静刚度及其动态特性。介绍利用Pro/E建立有限元模型并通过ANSYS分析整机固有频率、振型及动态特性。     

建立建筑环境与设备专业实践创新基地的分析与研究

为了推进素质教育,推动实践教学改革,培养学生的创新能力、实践能力和创业精神,高校要加强实践创新基地、开放型实验室、综合性实验室等实践活动场所的建设。本文从学生实验、实习、科技活动和学生科研方面提出了建立建筑环境与设备专业实践创新基地的设想。并分析了建立实践创新基地在实验设备仪器管理、基地管理、实验人员管理及教师业务水平等方面带来的问题。     

Teachers’ perceptions of assessments of their mathematical knowledge in a professional development course

The purpose of the project reported in this article was to evaluate how assessing teachers’ mathematical knowledge within a professional development course impacted from the teachers’ perspective their learning and their experience with the course. The professional development course consisted of a 2-week summer institute and the content focus was geometry. We had decided to assess the mathematical learning of the teachers during this professional development course for various accountability reasons, but were concerned about possible negative by-products of this decision on the teachers and their participation. Thus, we worked to design assessment in ways that we hoped would minimize negative impacts and maintain a supportive learning environment. In addition, we undertook this evaluation to examine the impacts of the assessment, which included homework, quizzes, various projects, and an examination for program evaluation. Seventeen grade 5–9 teachers enrolled in the course participated in the study by completing written reflections and by describing their experiences in interviews. We learned that while our original intent was “to do no harm,” the teachers reported that their learning was enhanced by the assessment. The article concludes by describing the various properties of the assessments that the teachers identified as contributing to their learning of the geometry content, many of which align with current recommendations for assessing and evaluating grade K-16 mathematics students.

论大型体育赛事承办中生态环境的保护

论述承办大型体育赛事所带来的对主办地环境生态环境的危害,提出在承办大型体育赛事的过程中应采取的生态环境保护的策略。     

网络机房安全网关系统SGW的设计与实现

文章阐述了适用于学校网络机房的安全网关系统SGW的设计与实现,介绍了基于“混杂模式“的网络信息采集、“基于用户“的访问认证、基于Linux防火墙的访问控制、嵌入式Web服务器等关键技术.     

基于西门子工业网络的过程控制实验系统

论文依托南京理工大学自动化学院过程控制实验室的建设,介绍了过程控制实验系统的组成,重点讲述用于实验教学的不同层次的实验,分析了这些实验的内容以及相互关系,通过系统网络结构及监控实验环节深化了西门子全集成自动化的工业网络模型。实践证明这些实验内容对促进过程控制教学、教师科研、培养学生掌握过程控制系统设计的能力等方面有着重要意义。     

四川省FDI与环境污染问题初探

利用FDI在很大程度上促进了四川经济的增长。但与此同时,由于FDI直接涉及生产过程和资源利用,它对四川省环境也产生了不利影响。通过Granger因果关系检验发现FDI是四川省环境污染的Granger原因。实证分析结果表明,FDI和工业废气、废水排放物之间分别存在着协整关系,影响程度为实际使用FDI投资额每增加1％,工业废气、废水排放量均增加0．2％左右。