高职院校辅导员队伍专业化与职业化建设探讨

辅导员是高职院校教师队伍的组成部分,是促进学生健康成长、成才和维护学校与社会改革、发展和稳定的重要力量.本文分析了高职院校辅导员队伍专业化和职业化建设的必要性,同时对辅导员队伍专业化、职业化建设的有效途径提出了自己的看法.     

高寒地区隧道的冻害机理综述

简述衬砌混凝土的冰冻破坏、局部存水冻胀破坏、冻胀性围岩冻胀破坏以及既有裂缝裂隙水的冻胀破坏等因素对高寒地区隧道的冻害机理。     

A descriptive study of community college teachers’ attitudes toward online learning

The data gathered provided valuable insights into the attitudes of teachers in relation to distance education. Most of the participants of the survey felt that with adequate training, technology could be a valuable tool in education. The confidence of the respondents in their own computer skills was rather high, although it was apparent that this confidence did not cover the application of their computer skills to the development of online instruction. None of the respondents currently use a course Web site, and most had little interest in doing so. There was also a strong feeling that there was little support from administration, which made the incentives for providing online instruction low. The survey also raised additional questions such as what type of incentives would be required to make distance education a desirable option for a teacher, or whether they would be interested in receiving training on preparing distance course materials. Further research into possible correlation between the subject matter taught and feelings towards online instruction would be beneficial.     

光纤通信实验系统设计

论述了光强调制、光强直接检测系统设计中的关键技术。设计采用Agilent公司生产的组件作为光发射器和光接收器,使接收端的输出信号电平随着收到的光功率大小而改变。介绍了光源驱动电路、TP3067PCM编码电路和光接收模块电路,对模拟通信系统参数和数字通信系统参数进行了测试和分析。通过对该实验系统的性能参数的测试,能够更好地理解整个光纤传输过程、掌握光纤通信相关理论,实验系统还具有扩充功能,能和计算机连接实现图像传输及图像处理等功能。     

混凝土结构耐久性的影响因素及对策

钢筋混凝土结构是应用非常广泛的一种结构形式,但由于其结构自身和使用环境的特点,使得混凝土结构经常存在严重的耐久性问题。通过对国内外钢筋混凝土结构工程耐久性现状的介绍,论述影响混凝土结构耐久性的因素及混凝土的破坏机理,并针对性地提出预防的措施。     

节水灌溉技术社会生态效益评估——以石羊河下游民勤县为例

节水灌溉技术的社会生态效益评估是相关政策制定的重要参考依据。本文以甘肃省石羊河下游民勤县为例,基于选择实验法构建了节水灌溉技术的效益评估框架,并通过问卷设计、选择实验调研和Mixed Logit模型估计,测算了技术采用效益。结果显示,民勤县居民已经形成了一定的社会生态认知,以期通过相应的治理措施来保障区域生态环境的稳定;城镇居民平均每户愿意为当地社会生态环境的改善支付657.21元/年,高于农村居民的587.06元/年;未来10年,民勤县实施节水灌溉技术的社会生态效益总量为3.946亿元,单位播种面积的节水效益总量为7674元/hm²。此外,本文还进一步探讨了运用选择实验法量化节水灌溉技术采用效益的优势与不足,并指出了进一步研究中需要重点关注的一些问题。     

高寒地区隧道的冻害机理综述

简述衬砌混凝土的冰冻破坏、局部存水冻胀破坏、冻胀性围岩冻胀破坏以及既有裂缝裂隙水的冻胀破坏等因素对高寒地区隧道的冻害机理。     

新课标背景下的高中英语探究式教学研究

本文主要阐述了在新课程改革下高中英语探究式教学的特点,强调探究式教学的重要性和可行性,诠释了探究式教学在高中英语课堂中的具体应用。