Erosion behavior and mechanism of boronised steels     

刘立  凌国平  刘涛  郦剑 《浙江大学学报(A卷英文版)》2002,3(3):278-282

Boronising of steels is a hardening process to get high surface hardness. The erosion resistance of boronised steels was researched with the use of four kinds of erodent, i.e. glass, alumina, quartz and silicon carbide. The erosion rate increases rapidly with erodent hardness and severe erosion occurs with high impacting angle range of hard particles. SEM analysis indicated that chipping is caused by repetitive impacting of glass and quartz, whereas by alumina and silicon carbide impacting, chipping, and that plastic flow take place simultaneously and the erosion rate reaches the peak value when the impacting angle is above 60°.  相似文献   

探索高校学生工作新思路     

黄永乐 《河北师范大学学报(教育科学版)》2001,3(3):109-110

面对高教改革的日益深入，高校学生工作要适应新形势的需要，树立全新教育理念，在学生工作管理体制运行机制上培养超前思维，努力探索学生工作新思路、新模式。  相似文献   

现当代管理心理学领导行为与领导风格研究成果综述   总被引：1，自引：0，他引：1  

张海钟  赵文进  张维英 《兰州石化职业技术学院学报》2006,6(4):56-60

通过对现代管理心理学中领导行为和领导风格研究成果的综述认为,西方管理心理学研究的结论在中国的推广存在严重的文化障碍,必须逐步本土化才能用来指导中国的党政管理和企业管理.20世纪的中国管理心理学关于领导行为和领导作风的研究,要么停留在西方管理心理学的介绍和跨文化验证方面,要么以西方文化为背景,批评中国企业家没有现代管理的心理素质,对中国古代儒家道家文化背景下形成的治国治家思想和以党的执政理论为框架的领导科学视而不见.西方的管理心理学和中国的领导科学就象两条铁轨,难以相交,主要的障碍在于话语的转换困难.心理学的本土化道路仍然很漫长.  相似文献   

Children’s Memory: A Primer for Understanding Behavior     

Elaine S. Barry 《Early Childhood Education Journal》2006,33(6):405-411

This paper provides the opportunity to understand children’s behavior from a memory viewpoint. For the last three decades, cognitive developmentalists have been asking the question, “what develops in children’s memory?” Four answers to this question are presented, complete with explanations, examples, and possible applications where appropriate. The purpose of the paper is to provide early childhood educators and other practitioners who work with children a different lens through which to view children’s behavior. The memory view is compatible with current best practices in early childhood education, and may provide practitioners an additional viewpoint from which to draw when implementing developmentally appropriate practice.  相似文献   

高等教育顾客感知服务质量的实证研究   总被引：8，自引：0，他引：8  

胡子祥 《西南师范大学学报(人文社会科学版)》2006,32(1):135-141

高等教育顾客感知服务质量是指高等教育服务的固有特性满足顾客明确的或潜在的要求的程度，它包括六个特性：有形性、形象性、过程性、内容性、情感性和可靠性。高等教育顾客感知服务质量比较显著地影响顾客满意感，并通过顾客满意感影响顾客行为意向。  相似文献   

家庭寄养对孤残儿童社会适应行为的作用   总被引：1，自引：0，他引：1  

邵朝竹 《和田师范专科学校学报》2005,25(1):83-84

孤残儿童是一个特殊的群体，他们的发展或多或少地有所滞后或者缺陷，在社会适应行为发展上尤为突出。寄养儿童在寄养家庭中得到了情感满足、需要满足、行为支持、心理健康发展。家庭寄养对孤残儿童的适应行为发展有着积极作用。  相似文献   

张掖市土地利用/覆盖变化人口驱动力分析     

许新莉 《怀化学院学报》2007,26(8):126-128

人口作为土地利用/覆盖变化中一个活跃的因素，人口数量的多少直接影响到土地利用/覆盖变化.现以位于黑河流域中上游的张掖市为例，对该市土地利用/覆盖变化进行了分析，结果表明：人口因素对现代土地利用/覆盖变化有直接的驱动作用.  相似文献   

Pricing policy and the college choice process     

Dr. Randall G. Chapman 《Research in higher education》1979,10(1):37-57

Following the presentation of a marketing management paradigm for higher educational institutions, this paper discuses some aspects of the pricing policy process in colleges and universities. A statistical model of the college choice process is developed, and some empirical results related to the effects of price, among other factors, on the collegechoice decision-making behavior process of high school seniors are presented and interpreted. The two most important factors affecting the college choice process are seen to be college quality and price-related considerations. Marketing implications of these results are discussed.Presented at the Annual Forum of the Association For Institutional Research, Houston, Texas, May 1978.  相似文献   

带式输送机双滚筒共同驱动的局限性     

张茂冲 《淮南职业技术学院学报》2005,5(1):58-60

就矿井双滚筒共同驱动带式输送机经常出现的滚筒磨损问题，通过对带式输送机双滚筒共同驱动方式下两滚筒牵引力分配的推导，探讨了两驱动滚筒实际直径偏差对牵引力配比的影响，并针对以上影响造成的双滚筒共同驱动带式输送机滚筒磨损问题，提出了解决方案及措施。  相似文献   

The relative impact of school‐wide positive behavior support on teachers’ perceptions of student behavior across schools,teachers, and students     

Albert W. Wienen  Inge Reijnders  Marleen H. van Aggelen  Elske H. Bos  Laura Batstra  Peter de Jonge 《Psychology in the schools》2019,56(2):232-241

School‐wide positive behavior support (SWPBS) is a systemic approach for implementing a proactive schoolwide discipline and for improving students’ academic and behavioral outcomes by targeting the school’s organizational and social culture. With a multilevel approach, the present study evaluates the relative effectiveness of SWPBS on teachers’ perceptions of the student behavior (N = 3,295) across schools, teachers, and children using a multilevel approach. We assessed teacher perception of student problem behavior five times during a 3‐year implementation of SWPBS in 23 Dutch schools. Multilevel analyses not only revealed a small increase in perceived prosocial behavior and a small decrease in problems with peers, but also different effects across children, teachers, and schools. Effects were stronger for girls and for students with higher severity of perceived problems at baseline. At teachers’ level, higher mean baseline severity of perceived problems was associated with the reduced impact of SWPBS on perceived emotional problems and problems with peers. At the school level, effects were stronger for regular schools as compared with special needs schools.  相似文献