声速法在检测乳化液浓度中的应用

分析了乳化液浓度检测技术的发展状况。针对冷轧生产,提出采用超声波声速法检测乳化液浓度技术可行,在此基础上,对武钢冷轧乳化液进行了实验应用研究。     

在线测温装置网络集中监控管理系统的设计

电力设备在线测温装置能实时监测设备工作温度,准确反映设备运行状况,及时发现缺陷隐患,从而有效避免事故或故障的发生。以某厂在线测温装置网络集中监控管理系统的设计为实例,介绍系统的技术实现方式、基本功能和实施效果。     

自我同一性理论与测量研究述评

目前有关同一性测量的研究,根据其理论依据的不同可以分为两种取向：一是以玛西亚理论为基础,在探索与承诺两维度下的不断延伸与补充;一是以新的同一性理论如认同风格理论、认同资源理论、认同过程理论等为依据的测量。虽然,其理论点与测量重点不同,但他们的相互配合和补充更能解释青少年同一性形成过程中的不同方面的问题。     

应用光纤陀螺提高激光多自由度测量精度

随着光电探测器件测量精度的提高和激光技术的迅速发展,国内外相继出现了多种多自由度测量系统,并且应用范围在逐步扩大。测量技术需要较高的测量精度和较高的测量分辨率,现有技术可能达不到有些测量需要的精度。而光纤陀螺的测量精度比较高,可以实现高精度测量。     

自动跟踪补偿消弧线圈在配电网中的选用

目前,我国城市配电网中电力电缆的应用愈来愈广泛,系统电容电流越来越大,在发生单相接地时电弧不能熄灭,会造成电弧间歇性的熄灭与重燃,形成弧光接地电压或激发磁谐振危及电气设备绝缘,严重时有可能发展为相间短路,引起事故。为限制单相接地故障电流,6-35KV系统采用中性点通过消弧线圈接地来补偿单相接地时的电容电流使电弧熄灭,限制弧光接地过电压和消除铁磁谐振过电压,现已取得较多的运行经验和较好运行效果。     

浅谈投资性房地产会计核算中的相关问题

财政部颁布的《投资性房地产准则》已经实施了4年,从实施情况看,其在准则设计和实际操作中还存在着一些问题。文章结合案例分析了在公允价值计量模式下投资性房地产在转换、公允价值变动计量及处置这几方面存在的问题,并提出了建议。     

椭偏法测定TiO2薄膜的光学常数

详细介绍了使用椭偏仪测定薄膜的光学常数的原理,采用溶胶一凝胶法在普通载玻片上制备了均匀透明的TiO2薄膜,借助椭偏仪测量了薄膜的光学特性．     

浅谈无棱镜全站仪在城市规划测量中的应用

介绍了无棱镜全站仪测量技术的基本原理和优点,以拓普康GPT—3002LN无棱镜全站仪在城市规划测量中的应用为例,探讨了在无棱镜条件下数据采集的精度及注意事项。     

内疚的界定和测量以及研究方法述评

作为人类高度社会化的负性自我道德情感体验,内疚是个体对自身经历的不良事件进行评价和认知的产物,同时也是影响个体后续行为的重要因素,它与个体的身心健康和社会化的发展有着非常密切的关系。西方心理学界对这一情绪进行了大量的研究。国内关于内疚的研究报告零星可数。对内疚的概念界定与测量、内疚态度的研究现状进行系统的阐述,有助于深入探讨内疚领域特有的问题。     

Using students’ feedback for teacher education: measurement invariance across pre-service teacher-rated and student-rated aspects of quality of teaching

Comparing self-perceived quality of teaching to students’ perception can be used in higher education to improve the quality of teaching of pre-service teachers in teacher education. However, comparing these measurements from different perspectives is only meaningful if the same constructs are being measured. To shed light on this comparison’s meaningfulness, we scrutinised whether aspects of quality of teaching are measured in the same way across pre-service teachers and their students by means of measurement invariance analyses. To do so, 272 pre-service teachers in teacher education rated aspects of their quality of teaching, and were rated by their 4851 students. Measurement invariance across these perspectives was tested in multilevel structural equation models. Strong measurement invariance held for two aspects of quality of teaching; for the third, one item lacked weak measurement invariance. Pre-service teachers perceived their quality of teaching lower than their students. In conclusion, aspects of quality of teaching can be compared across perspectives, and teacher education should encourage pre-service teachers to use students’ feedback as a valuable resource for improving their quality of teaching.