基于沥青混合料性能的环氧树脂改性效果评价

在分析钢桥面铺装层主要病害和特殊工作环境的前提下,分别采用高温车辙试验、低温小梁弯曲试验和控制应力小梁弯拉疲劳试验,研究了不同环氧树脂掺量下的环氧树脂改性沥青混合料的高温稳定性、低温抗裂性和抗疲劳性能.试验结果表明:环氧树脂对这3个方面都有很大的改进效果,但改性效果和树脂的添加量并不是一个无限递增的关系,当添加量超过一定数值以后,改性的效果将趋于平稳.最后就高温、低温、疲劳3个方面分别提出环氧树脂添加量为20%,30%,30%的建议值.     

不可逆回热斯特林热泵的生态学优化研究

应用有限时间热力学理论，探讨热阻及回热损失对一类斯特林热泵的生态学优化性能的影响，所得结论可为斯特林热泵的研制和设计提供新的理论指导。     

国际技术转让合同适用最密切联系地法的依据

适用当事人自主选择的法律是国际技术转让合同使适用最密切联系地法的前提条件。在当事人没有明确选择法律时，则适用与合同有最密切联系的法律。在转让技术所有权的合同中，转让方的习惯居所地法或营业地法是与合同有最密切联系的法律。在转让技术使用权的许可合同中，原则上技术保护国法是与合同有最密切联系的法律。但在保护国有多个时，技术主要利用地为保护国；在技术被许可给一个受让方在几个国家利用且都得到充分的利用时，被许可国法律为合同最密切联系的法律；在许可方和被许可方有相同惯常居所、营业地、中心管理地或国籍时，其共同的法律为合同最密切联系的法律；在许可合同明显与许可国有更密切的联系时，许可国法律为合同最密切联系的法律。     

Exploring the relationship between homework task difficulty,student engagement and performance

This article considers the relationship between differential homework task difficulty, student engagement and performance across four Irish post-primary school sites. A total of 236 participants completed all elements of this study. All participants were junior cycle students, aged between 12 and 16 years. The study employed a standardised test–retest approach, with a one week interval between tests. Between testing, participants were randomly subdivided into three cohorts. Each cohort received homework questions of different difficulty levels to complete for one week. The results of this study found that Cohort A, who received the least difficult homework tasks, completed the most non-compulsory questions. Although Cohort A demonstrated higher levels of engagement, no statistically significant difference was found in the change in performance scores of the three cohorts. The results highlight the negative impact of increased task difficulty on student engagement with independent homework tasks. The findings suggest that in order to support student engagement it is important that teachers afford ample opportunity for student success when designing self-directed tasks such as homework.     

国债投资对社会协调发展的作用

中国属于发展中国家，当代中国社会发展的实质就是如何由传统社会步入现代社会。中国所进行的大规模国债投资即是为了步入现代社会创造高效的基础设施、为区域产业结构调整创造条件、更有效的开发和利用资源，并为区域经济和社会发展作出贡献。     

Presenting Complex Teacher Evaluation Data: Advantages of Dossier Organization Techniques Over Portfolios

The development of extensive and authentic teacher evaluation raises questions about how best to organize and present the increased amount and variety of assessment materials. Portfolios have been suggested for teacher evaluation because they are well suited to capture the complexities of teaching. However, portfolios 1) are difficult to judge, 2) are difficult to archive, 3) lack key information, 4) miss excellent teachers with simple materials, 5) rarely plan for audiences, 6) distort when required, and 7) bring conflicts of interest. Teacher dossiers are compressed collections of objective data which are easier to judge, demonstrably reliable, and cost-effective.     

论当前我国政府绩效评估中的公民参与

当前,作为政府服务对象的公民参与政府绩效评估具有十分重要的意义.但是,公民在参与政府绩效评估的过程中还存在着诸如公民自身参与素质不高、参与的机制不健全、法律法规保障的缺乏、参与成本过高等问题,这些问题严重影响了公民参与的质量.因此,必须通过提高公民的素质、健全公民参与机制、降低公民参与的成本等措施,尽快改善公民参与的现状,不断提高公民参与的质量与水平.     

Theory and Practice on Teacher Performance Evaluation

Teacher performance evaluation plays a key role in educational personnel reform, so it has been an important yet difficult issue in educational reform. Previous evaluations on teachers failed to make strict distinction among the three dominant types of evaluation, namely, capability, achievement, and effectiveness. Moreover, teacher performance evaluation was usually restricted to task performance, neglecting contextual performance. Most researches done in teachers’ evaluation were only about college teachers. This paper suggests that teacher performance evaluation should find its theoretical foundation in teacher performance constructs. After making literature review, critical case study, critical interview, and qualitative research, the authors propose a new construct of teacher performance and make necessary analysis for the construct of reliability and validity in empirical approaches. Translated from Teacher Education Research, 2005, 1     

外商在我国直接投资区域差异的实证分析:1992-2002

运用不平衡指数I,集中度指数D,标准差S,变差系数V等指标采定量测试1992-2002外商在我国30个省市区和三大地带直接投资的地区差异.结果显示,1992-2002年外商在我国东中西三大地带之间,以及各省级区域之间的直接投资存在着巨大的区域性差异.因此在中西部地区需要采取措施吸引和充分利用外资,以缩小与东部的差距.     

基于平衡计分卡的高校行政管理部门绩效指标体系构建

利用平衡计分卡中部门指标分解的工具——指标分解矩阵表,以高校学生工作处为例,将高校整体办学目标分解为部门具体绩效指标,总结出制定针对高校不同行政管理部门的绩效指标的一般方法,并提出高校行政管理部门考评实施的新思路——关注内部利益相关者。