太阳能二次聚集器聚光性能研究

采用蒙特卡洛射线踪迹法,ProE和TracePro软件技术,模拟分析了多棱台与一次抛物面、复合抛物面二次聚集器与一次抛物面两级聚集器的太阳光聚集传输特性。通过对比,发现多棱台二次聚集器的几何聚光比为1.4左右(约为复合抛物面聚集器的70%)。多棱台与一次抛物面、复合抛物面二次聚集器与一次抛物面两级聚集器圆筒侧壁和底面的太阳能流密度分布图像相当(沿圆周方向,复合抛物面两级聚集器相对比较平滑)。结论为反射二次聚集器技术发展提供理论依据。     

从田径科研和田径比赛成绩分析高校田径高水平队存在的部分问题

通过对《中国中文核心期刊要目总览》中所列的体育类13种核心期刊关于田径方面的研究论文与参加第5界和第9界全国大学生田径锦标赛的成绩进行分析,结果表明:我国大学田径理论与实践相互脱节.因此,大学理论与实践相结合的现实问题仍然是高水平运动队面临的一个重要问题.     

影响高校教师岗位津贴分配的因素分析

本文利用作者第一手教师工作业绩数据,回归分析了工作业绩和个人特征(职称、职称资历、年龄、管理职务和学历)对高校教师岗位津贴分配的影响。通过实证分析发现,在全体教师中教师工作业绩是影响岗位津贴分配的主要因素;而在职称相同的教师中,工作业绩对教师岗位津贴分配的影响不是最主要的影响因素。职称和职称资历依然是影响教师岗位津贴分配差异的主要因素。总的来说,岗位津贴制度比旧的工资制度进步,但仍需要进行完善和改进。     

Improving network service performance and reliability via links trunking technologies

INTRODUCTION Because of the critical role that computing sys-tems and networks play in today’s business envi-ronment, it is not surprising that business success often goes to the company with the best information and the most efficient process for delivering that in-formation. As the principal tool for business col-laboration, corporate LANs are a vital resource in enabling today’s enterprises to adopt competitive strategies. The number of users wanting to share and access data across…     

Neuropsychological Assessment of First‐Year Architecture Students’ Visuospatial Abilities: Overview

First‐year architecture students are expected to utilise visuospatial abilities to generate/construct, retain, rotate and manipulate space mentally and physically through physical and digital representations. This study of 57 female and 23 male participants was conducted to investigate first‐year architecture students’ visuospatial abilities by means of the Beck Depression Inventory, Logical Reasoning Test and Judgment of Line Orientation (JLO) test. Participants’ sexes, cognitive development level, depression scale scores, university entrance exam results, vision disorders, physical competences, art training prior to university and error types were the study’s main parameters. The results showed that academic scores of the participants both to enrol in the program and complete the first‐year studio did not correlate with their JLO scores. Nondepressed participants performed better in JLO. Error analyses demonstrated that there is a concentration on certain items according to the test stimulus line positions, especially in females. Those who reported limited physical and visual competency made more mistakes in the same items. The study concludes that sex, depression, and individual differences in physical and visual competency, and art training, are significant variables for visuospatial performance. Judging visuospatial parameters through spatial design exercises is different from having proper methods and instruments to assess the achievements of the students regarding those abilities in architectural design education. It is important to map students’ visuospatial abilities individually from a developmental perspective. There is a strong need to develop 4D psychometric instrument to assess visuospatial abilities.     

Where do you come from,where do you go? Assessing skills gaps and labour market outcomes for young adults with different immigration backgrounds

Using PISA and PIAAC data from twelve OECD countries, we examine the gap in cognitive skills among immigrants and natives and evaluate how those differences have evolved over time. We also consider how demographics, family background and school quality explain the development of cognitive skills of young people with immigrant backgrounds. The results show, first, that some convergence in skills occurs between second-generation immigrants and natives over time. Second, demographics, family background and school quality variables all contribute to the achievement gaps across different groups.     

日本高等教育交叉学科建设的范例及其启示

本文围绕日本高等教育交叉学科建设与运营的特点,从交叉学科研究的研究实体、交叉学科教育的教育体系、学科交叉型大学的大学改革理念三个层面,分别调研了一个典型事例,发现他们最主要的特点分别是:科研实体具有高度的学术组织运作机能;交叉学科教育是以一个学院为单位的整体改革,而不是停留在几门交叉学科课程的设置上;以学术融合为理念的新型大学,其动力来源于开创新的学科体系的战略目标。     

二语语法学习与语言技能关系研究

语法在语言学习中具有重要地位。研究发现,语法知识有助于各项语言技能提高,语法学习可以加速对语言形式的掌握。从学生主体来考虑,明示语法教学或多或少优于暗示语法教学。     

一种用于一维纳米线阵列温差电材料性能测试的新技术

纳米线阵列结构温差电材料具有高的热电转换效率 ,非常适合制造输出功率在微瓦量级的微温差电池 .由于纳米线阵列结构温差电材料的厚度通常在十微米至几十微米 ,常规的温差电性能测试技术已不适用 .为此 ,提出了一种新的温差电性能测试技术 ,并建立了相关的测试系统 .     

"合作式学习、督促式参与和小组化评分"的教学探索

"合作式学习、督促式参与和小组化评分"正是在坚持传统理论教学基础上对教学活动量化的探索和模式创新,主要由"合作式学习"、"督促式参与"和"小组化评分"三个相互联系的教学环节结合而成,而学生的课程最终成绩将由"小组总成绩"、"个人表现成绩",以及通过学期考试所得到的"卷面成绩"三部分组成。