微积分学中若干问题的数学化归方法

从数学文化教育的角度，分析和讨论微积分学中若干问题的数学化归方法。     

手法复位加针灸理疗对运动中膝关节骨错缝23例疗效观察

观察手法复位加针灸理疗对运动中膝关节骨错缝的临床疗效。43例患者随机分为两组,治疗组(23例)采用手法复位加针灸理疗治疗;对照组(20例)采用中医常规疗法;4次为一疗程,疗程内治愈不重复治疗。得出结论,手法复位加针灸理疗对运动中膝关节骨错缝有显著性疗效,值得推广运用。     

Controlware for Learning Using Mobile Robots

One of the main problems faced within departments of computer science is how to encourage students to use their algorithmic and programming skills in the real-life context. This paper deals with control technologies for higher education. We define controlware as a toolkit for creating the control part of a mobile robot in interactive learning environments and educational micro-worlds. Intelligent behavior of mobile robots is created through the composition of constituent control units. The overall behavior of a mobile robot is half cooperative and half-competitive realization of the goals of the control units. To construct this composition behavior and resolve the corresponding conflicts, a partially ordering priority arbitration subsystem is defined. It is shown that the suggested approach links educational processes both in a control curriculum and an intelligent robotics curriculum. We hope that the spreadsheet-based controlware will make the mobile robots lear ning environment an accepted educational practice tool in computer science.     

Stress Reduction and Mood Enhancement in Four Exercise Modes: Swimming,Body Conditioning,Hatha Yoga,and Fencing

Abstract

The influence of exercise mode and practice qualities on the stress reduction benefits of exercise was examined. College students in swimming, body conditioning, hatha yoga, fencing, exercise, and lecture-control classes completed the Profile of Mood States and the State Anxiety Inventory before and after class on three occasions. Swimmers had unusually positive initial moods and reported less tension and confusion after swimming only on the first day of testing. Participants in yoga, an anaerobic activity that satisfied three of the four mode requirements, were significantly less anxious, tense, depressed, angry, fatigued, and confused after class than before on all three occasions. Supporting the importance of the four mode characteristics, participants in the exercise control activity of fencing reported improvements only in vigor. A possible influence of practice conditions was observed when members of the body conditioning class reported significant increases in fatigue, but no other mood changes. Results of this study supported the possibility that exercise mode and practice requirements in the proposed taxonomy moderate the stress reduction benefits.     

基于环境学习曲线的氮氧化物减排区域分解

基于1999-2008年中国氮氧化物排放量和经济发展数据,构建了30个省区万元产值氮氧化物排放量随人均GDP变化的环境学习曲线.以所建立的环境学习曲线为依据,预测了2020年氮氧化物排放强度和减排潜力,并计算各省区氮氧化物削减目标和分担率.     

φ1000—间冷式氨合成塔内件在合成氨系统的运用

文章介绍了φ1000—间冷式氨合成塔内件的结构、特性、工艺流程、测温点分布、催化剂升温还原及合成塔运行情况。     

硫酸法钛白生产中水洗用水节水工艺控制

硫酸法钛白生产中水洗工序要耗用大量的水来洗涤偏钛浆中的可溶性杂质,通过合理安排工艺可以有效地节约水洗工艺用水,节水量可达50%,起到节水减排效果。     

山东省节能减排政府规制长效机制的构建策略

自市场化改革以来,中国经济在获得快速增长的同时也付出了惨重的资源和环境代价。若要维持经济的可持续发展,需要对节能减排颁布实施对应的政府政策,特别是建立节能减排的政府规制长效机制。但目前尚未形成此长效机制,这是导致能源与环境问题不能得到很好解决的根源。因此,本文选择山东省作为典型地区进行节能减排的政府规制政策长效机制构建,首先探讨了进行节能减排规制的必要性;在此基础上借鉴国外节能减排规制实践经验,挖掘山东省节能减排规制取得的成绩与存在的问题;最终构建山东省节能减排规制的长效机制。     

区域知识产权形象的概念内涵、维度体系与属性特征

区域知识产权形象是知识经济时代区域经济学研究的一个全新、重要而又迫切的问题,清晰的区域知识产权形象概念对于正确解读中国的国家和地区知识产权战略实施与知识产权事业进程具有重要意义,这是兼具理论与实证价值的议题。从区域经济学、区域营销学、战略管理学和认知心理学等多角度入手分析区域知识产权形象概念内涵,以焦点小组研究方法探索区域知识产权形象维度组成,构建集实力形象、制度形象、机构与人员形象和环境形象等于一体的维度体系,并进一步分析了区域知识产权形象属性特征。     

基于差别矩阵的启发式粗糙集属性约简算法研究

提出基于差别矩阵的改进启发式粗糙集属性约简算法,降低算法的时间复杂度及空间复杂度。针对相关实际案例数据。以学生考试成绩为分析对象,应用改进后的约简算法,设计相应的评价指标,分析学生成绩的潜在影响因素,再次验证了本文提出算法的可行性和高效性。