首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   71篇
  免费   4篇
管理学   23篇
民族学   2篇
人口学   1篇
丛书文集   6篇
理论方法论   1篇
综合类   39篇
社会学   3篇
  2023年   1篇
  2022年   1篇
  2019年   1篇
  2016年   2篇
  2015年   1篇
  2014年   5篇
  2013年   22篇
  2011年   4篇
  2010年   6篇
  2009年   5篇
  2008年   3篇
  2007年   2篇
  2006年   5篇
  2005年   2篇
  2004年   2篇
  2003年   1篇
  2002年   2篇
  2001年   2篇
  2000年   2篇
  1995年   1篇
  1990年   1篇
  1989年   3篇
  1988年   1篇
排序方式: 共有75条查询结果,搜索用时 31 毫秒
31.
兴趣是学习的源泉和动力 ,当一个人对某种事物发生浓厚而稳定的兴趣时 ,他对事物的观察力就变得敏锐 ,逻辑记忆增强 ,想像力丰富。兴趣还能促进学生创造力的产生 ,兴趣的激发和培养能促进非智力因素其他各方面的发展。如果学生对学习活动产生了兴趣 ,他就会保持旺盛的求知欲 ,增强其学习的积极性 ,主动探求新知识 ,并且能在学习遇到困难时 ,坚强地克服困难 ,不畏艰辛和劳苦 ,从而取得最后的成功  相似文献   
32.
The problem of loading PCBs on automated assembling machines with the twin objectives of minimizing the makespan and balancing the load is addressed in this study. Noting that setup times are route-dependent and insertion times are relatively negligible, this paper develops a new algorithm which performs well on trial data sets.  相似文献   
33.
A scheduling and compression strategy is presented for a multiple robot assembly workcell. Based on dynamic programming, the algorithm gives an initial assembly sequence for a two- or three-robot cell with a common resource or dedicated ones. The initial assembly sequence is computed efficiently, with computational complexity of being O (log n/k) where n is the number of elements in k resources. Then the initial sequence is further compressed towards the time-optimal assemblysequence. Precedence constraints in assembly are considered. The scheme is tested using computer simulations and some test results are presented. For the problems solved (typically involving 20 elements), the computational times were less than 5 seconds in an Apollo 300 workstation.  相似文献   
34.
The strategic importance of manufacturing decisions to the competitive position of a firm is well known. As the sphere of competition has expanded from regional to national to international, successful manufacturing decisions have become ever more complex. The success of manufacturing strategics ultimately rests on proper tactical implementation at the shopfloor level. In order to explore various operating policies and procedures at a basic level, and to contrast them with some commonly held beliefs, this paper examines and compares the shopfloor practices of companies in the small machines too! industry in selected countries in the Pacific rim, namely; Japan,

China and South Korea. While many popular views on manufacturing practices in these countries are supported by the study, the results challenge other commonly held views.  相似文献   
35.
This paper considers finding the optimal number of stations for an assembly line producing a limited quantity of a new product under learning conditions. This type of production characterizes heavy products (such as airplanes and communication systems) and science-based industries (e.g. laser cutting devices and special equipment for hospitals). These products are manufactured in assembly line fashion in small batches of a few hundred. Since the products are assumed to be totally new to the workers, the learning phenomenon is significant (i.e. task times decrease from cycle to cycle as experience is gained). Therefore, standard balancing methods are no longer applicable. Determining the number of stations has a large effect on the production rate while the actual assignment of tasks to stations helps to fine tune the cycle time. Thus, the number of stations can be regarded as a strategic decision variable . This paper discusses two ways for determining the optimal number of stations, namely as a cost minimization problem and as a profit maximization problem.  相似文献   
36.
探讨成分统制如何解释否定依赖关系.确立否定依赖关系是如何发挥作用,又如何具体操作,以期能更深入理解该概念的重要性,进而具体地认识生成语法句法.  相似文献   
37.
赵建辉 《阴山学刊》2009,22(5):68-71
1900年后,传教士和著名报人林乐知对当时清末政局和中国革新提出了自己的思考和建议。在教育改革方面,他重视"蒙学"和"女学",并建议对传统士大夫进行"仕学"再教育。在政治立场上,他支持自上而下的政府改良,反对暴力革命手段,尤其对晚清"预备立宪"寄予厚望。随着他对清末新政逐渐失去信心,对革命派的态度有所改善。但他始终认为中国的根本问题是文化问题,根本出路只有教育和基督福音。  相似文献   
38.
张宇宏 《阴山学刊》2013,(5):104-107
民族预科教育是我国高等教育的重要组成部分,预科语文是民族预科教育主要课程之一,内蒙古地区民族预科语文教学存在多方面的问题,其产生与语言环境、民族情结、课程设置等有关,预科语文教学应针对内蒙古地区民族预科语文教学问题及问题产生原因,从实践经验出发寻求解决方法。  相似文献   
39.
数字“五”体现了人类与许多事物完美存在方式及宇宙空间方位对立统一的结构律,诸多客观实体及人类活动方式的集合律,人类生命与许多事物运动变化的节律,同时体现了人类社会历史发展进程及相关物象的结构律、集合律与节律。由此,“五”在古人心目中产生某种审美价值取向和神秘崇高的意义。  相似文献   
40.
西部大开发是世纪之交我国重大发展战略的合理转移 ,也是我国少数民族发展的内在要求。本文论述了我国民族预科教育发展状况 ,分析了西部大开发中我国民族预科教育面临的发展机遇 ,并提出了在西部大开发中发展民族预科教育的一些建议。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号