Michael Cole: Award for distinguished contributions of applications of psychology to education and training.

The American Psychological Association 2010 Award for Distinguished Contributions of Applications of Psychology to Education and Training was awarded to Michael Cole, for his study of the role of education in the learning and development of people from different cultures. His research combines experimental and ethnographic methods with Russian and American theories of the educational process. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

单电机驱动的带式输送机的传动控制

本文阐述了带式输送机传动的特点，分析了采用各种不同电机软起动控制方法-电压斜坡控制。电流闭环控制，转矩闭环控制和速度 闭环控制起动带式输送机的工作及皮带张力的变化。文章指出单电机驱动的带式输送机应该选用具有转矩闭环控制的固态软起动器或者转速反馈控制（例如美国BENSHAW的RSM系列）的固态软起动器，这样才能使带式输送机平滑起动，皮带中不会产生过大的张力，而采用转速反馈控制的固态软起动器是最佳方案。     

智能型软起动器在L系列压缩机中的应用

介绍了智能型软起动器在L系列压缩机中的应用。实际运行结果表明，该控制装置起动电流小，可靠性高，实际运行情况良好。     

三峡左岸电站发电机定子绕组纯水冷却系统问题及改进

针对三峡左岸电站发电机定子纯水冷却系统存在的电磁泵频繁损坏、动力电源保险不正常熔断等问题，进行了一系列研究和试验，提出了采用软启动器改善纯水电磁泵启动过程中的力学特性、调整400V机组自用电备自投整定时间、修改纯水系统的控制逻辑等一系列改进措施，有效地改善了电磁泵的使用环境，提高了发电机定子冷却纯水系统运行的可靠性。     

交流电动机的软起动技术

交流电动机的软起动是一种综合技术，它克服了发鼠笼异步机传统降压起动方式的许多缺点，通过采用软起动器可以实现交流电动机的软起动。本文介绍了交流电动机主要的几种软起动方式以及交流电动机软起动的特点，并指出了软起动器的其他一些应用。     

优化光正交码

本文给出了一种构造光正交码的新的组合方法。通过对一类斜Ｓｔａｒｔｅｒ的存在性的讨论，证明了对任意正整数ｖ，当ｖ与６互素时，存在优化（６ｖ，４，１）光正交码。     

Type of bacterial starter culture,aging and fermentation effects on some characteristics of inoculated beef sausages

Beef sausage mixes were inoculated with either Pediococcus acidilactici with Staphylococcus xylosus or P. acidilactici with S. carnosus, subdivided and then held for 0, 24, 48 or 72 h at 8–10 °C prior to fermentation. After aging (pre-fermentation holding), the mixes were fermented for 16 h ending at 41 °C. Moisture, protein and fat contents of all sausage mixes did not differ due to holding effects over all starter cultures. The pH of mixes followed the same pattern for all mixes, declining (p < 0.05) from approximately 5.8 to pH 5.2–5.3 at 72 h aging and to 4.4–4.5 after fermentation. Total acidity of the mixes followed an inverse pattern to pH, increasing (p < 0.05) after fermentation although there was no effect due to type of starter culture. Aging had no effect on nonprotein nitrogen (NPN) content as ΔNPN among all cultures. After fermentation, however, sausages held 72 h and inoculated with S. carnosus had higher NPN contents compared to P. acidilactici alone (p < 0.05) and with S. xylosus (p < 0.10). The same effects of starter cultures on changes in total amino acid concentration were observed. Concentrations of individual amino acids showed increases depending on pre-fermentation aging period (0 h versus 72 h) followed by fermentation.     

一起电机软起动器调试争端的原因分析和解决处理

官地水电站竹子坝人工骨料生产系统由水电八局承建,其细碎设备供电电源电气设计、施工采用总承包方式,但细碎设备电机的软起动器由业主采购,供货厂家美卓公司负责软起动器的选型设计和安装调式.在调试过程中出现了少见的故障现象,引发了美卓厂家和水电八局之间长达两个多月的争议.对故障原因进行了仔细分析,提出了详尽的解决处理方案,并由此对工程建设管理作出了深层反思,单对其他工程建没有一定的借鉴意义.     

新型智能化抽油机皮带胀紧器测控系统的程序设计

介绍了抽油机皮带胀紧器测控系统的控制原则和技术要求,采用差分判别法和最小二乘法相结合的方法设计了系统参数的测量原理,讨论了其监控程序和各功能模块程序的设计方法并绘出了其程序框图,分析了影响系统正常工作的干扰因素并提出了相应的抗干扰措施。     

航空发动机保险联轴节断裂原因分析

航空发动机保险联轴节在厂内试车和外场使用过程中多次出现断裂故障,严重影响了发动机的使用安全。本研究阐述了电机保险联轴节工作原理,建立了保险联轴节断裂故障树,对可能导致故障的因素进行了系统分析,故障原因主要是保险联轴节存在设计不当、加工精度不高、装配偏斜等问题,针对失效原因提出了改进措施,对发动机保险联轴节断裂排故分析有重要的参考作用。