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Search Results: 1 - 10 of 172313 matches for " 陈 卓 "
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碳钢缝隙内溶液化学和阳极极化行为研究

电化学 , 1999,
Abstract: 为研究缝隙腐蚀的溶液化学和缝中金属阳极极化行为,设计一种楔形缝隙模拟装置.以碳钢为研究对象,分别测试了在3.5%(wt)NaCl溶液中缝内各位置的电极电位、Cl-浓度、pH值以及缝外阳极极化时电流密度的变化.结果表明:非极化状态下,距离缝口约2cm处的金属电位最负,最容易被腐蚀.缝外阳极极化促进缝隙腐蚀,并使得缝内溶液Cl-和H+富集更严重;缝口金属受极化影响,腐蚀加剧,而缝隙深处却由于沉积盐膜作用而受到保护
小秦岭金矿田多因复成成矿作用过程分析

大地构造与成矿学 , 1998,
Abstract: 在小秦岭金矿田基础地质调研的基础上,对地层和岩体含矿性进行分析,并综合多种测试资料(S、Pb、H、O稳定同位素和流体温度)所提供的信息,反演了多因复成成矿作用过程。
高水头电站的地质问题及对策

人民黄河 , 2007,
Abstract: ?高水头电站具有建筑物等级低、分散、线路长等特点,所跨地域高差大、坡度陡,多建在深切河谷区的高陡山坡.分析了活动断裂、取水闸坝建基面选择、前池及调压井地质缺陷、山坡失稳、厂房软基等问题,并提出了相应的解决措施.
应用微机辅助设计轴类零件工艺规程

南京林业大学学报(自然科学版) , 1987, DOI: 10.3969/j.jssn.1000-2006.1987.04.010
Abstract: <正>本文是应用半创成原理的观点、方法,以轴类零件为例,在mz-731型微机上进行辅助工艺规程设计(capp)的尝试,开发了按零件的类(或组)半创成零件工艺过程的软件,可以简化程序,减少内存,有利于在类似微机上实现capp,便于中小企业应用。
道德教育与思想政治教育之比较
A Comparison between Moral and Ideological Political Educations in Terms of Power


- , 2016, DOI: 1672-4283(2016)01-0151-07
Abstract: 从权力的视角比较道德教育与思想政治教育之异同。一方面,两者都有浓厚的意识形态色彩,与权力有很大关系;另一方面,道德教育更多地依赖学术权力,思想政治教育更多地依赖政治权力。具体表现为:从权力的特性看,道德教育强调权力的相对性,思想政治教育强调权力的绝对性;从权力的要素看,道德教育强调权力的规范性要素,思想政治教育强调权力的规制性要素;从权力的运行看,道德教育强调协商性行为,思想政治教育强调强制灌输原则
新制度主义视野下的美国大学校际体育竞赛研究
American Intercollegiate Athletics in the Perspective of New Institutionalism


- , 2016, DOI: 10.19582/j.cnki.11-3785/g8.2016.08.015
Abstract: 摘要:为纠正人们对美国大学校际体育竞赛过于理想化的认识,在回顾其发展历程的基础上,较为系统地梳理美国大学校际体育竞赛的现状特点,总结其经验教训。采用文献资料法、案例分析法,并运用新制度主义的理论方法,从制度的规制性要素、规范性要素和文化-认知要素出发,借助于理性系统、自然系统与开放系统三种视角,分析美国大学校际体育竞赛,关注其目标、规则和权力问题。在目标方面,如何处理学术价值与商业利益的关系,这始终是美国大学校际体育竞赛未能解决的一个问题,甚至还在一定程度上背离了大学教育的目标。在规则方面,成文的规章制度与不成文的“潜规则”之间一直存在张力,这不仅体现在NCAA规章制度的演变过程中,而且集中反映在今天校际体育竞赛中的各种游戏法则上。在权力方面,改革竞赛的弊端需要采取以校长为核心的协商性行为,并在此基础上建立不同层次的支配同盟。
Abstract: To correct our over-idealize recognition of American intercollegiate athletics, this research reviewed its history, combed its current features, and concluded its experiences and lessons. Started from regulative element, normative element and cultural-cognitive element of institution, this paper used rational system, natural system and open system to analyze American intercollegiate athletics and its target, rule, and power by the methods of literature review, case study, and New Institutionalism. In target aspect, how to deal with the relationship between academic value and business interest is an unresolved question and deviates university education target in a certain degree. In rule aspect, there are always some tension between written rules and unwritten hidden rules, which is not only in the changes of NCAA rules, but also in the rules of many current kinds of games. In power aspect, drawbacks of game reform need to have a consultative behavior among presidents and to build different levels dominant alliances based on this
校企合作机制的新探索——基于大学生科技竞赛视域
A mechanism motivating enterprises to participate in cooperative education inspired by the college level science and technology contests


- , 2016, DOI: 10.11835/j.issn.1008-5831.2016.06.028
Abstract: 合作教育是应用型科技人才培养的一种重要模式。由企业所主办的大学生科技竞赛蕴含着一种特殊的校企互动机制,对合作教育模式的优化有重要启发。该机制关键要素有三:其一,竞赛主办企业通过将网络技术应用于竞赛活动的组织过程中,降低了与学生互动的管理成本;其二,主办企业通过设置物质和就业机会的奖励调动了学生的积极性,并兼顾了人才选拔的目标;其三,竞赛题目与主办企业的主营业务或者某款产品直接相关,保证了竞赛选拔出的人才与企业的需求相匹配。在这些因素的组合形态下,企业通过付出较低的成本,可以获得较有保障的人才收益,而学生也获得了企业的教学资源、实践锻炼和展示自我的机会。显然,校企合作机制对解决合作教育中企业方成本和收益等问题具有参考价值。
Cooperative education is important for application-oriented talents cultivation.The college level science and technology contests hosted by enterprises contain a special mechanism of school-enterprise cooperation. This mechanism has three key elements. Firstly, the network technique applied in organizational process by enterprises can reduce the administration cost of interacting with students. Secondly, with material rewards and employment opportunity awards, enterprises can incent students to participate in these contests. Thirdly, contests subjects are directly related to the enterprises' primary business or product. They insure the contests selects talents match the enterprises' demand. With these elements, the enterprises can recruit talents at a reasonable cost, and students can also access extra teaching resources and opportunities of practicing and demonstrating themselves. This mechanism of school-enterprise cooperation shows a good example of cooperative education.
住房市场结构对房价的影响研究——基于租赁市场比例的视角
,
- , 2018, DOI: 10.16382/j.cnki.1000-5579.2018.01.012
Abstract: 摘要 基于城镇住户调查数据和城市层面的统计数据,构建全国152个地级市的面板数据,从供给侧角度考察住房市场结构对房价的影响效应。实证结果表明,住房租赁市场的发展对房价存在着显著的抑制影响,平均而言,一个城市的住房租赁比例每上升1个百分点,该城市住房价格降低约0.2%-0.3%。进一步的区域异质性分析表明,这种影响效应主要体现在东部城市,而在中西部城市并不显著。另外,在房价收入比更高的城市,住房租赁市场比例提高对房价的抑制效应更大,更有利于挤出泡沫。研究结论显示,加快培育和发展住房租赁市场既可以增加居民住房选择、推进"租购并举",也有助于抑制投机泡沫,是构建房地产市场健康稳定长效机制的基石所在。
Abstract: This paper examines the effect of the housing tenure structure of urban families on city-level housing price from the perspective of supply side.Combining the Urban Household Survey(UHS)data and city-level level statistics data,this paper constructs a panel data of 152 Chinese prefecture-level cities.The empirical research shows that higher tenant share of urban families has a significant negative effect on housing prices.If the local tenant share of urban families increases by 1%,urban housing prices will decrease by 0.2-0.3%.Further regional-level heterogeneity analysis shows that this effect is mainly manifest in eastern cities,but not in mid-western cities.In addition,in the cities where housing prices are higher,the tenant share of urban families has greater depressing effect on housing prices.The conclusion of this paper shows that speeding up the development of rental housing market can both increase housing options to urban residents and help to curb excessive speculation bubble.
对中国亚热带地区植被研究方法的商榷

植物生态学报 , 1965,
Abstract:
从地植物学角度谈中国亚热带和热带的划分问题

植物生态学报 , 1964,
Abstract: 最近地理学界对我国亚热带和热带之間的界线問題争論很多。地植物学家对这个問題亦有不同的主张。問題的关鍵在于对亚热带和热带,尤其是前者的理解及其划分所依据的标准。应該认为自然界中的所謂带,是客观存在的;这个客观存在的綜合体,取决于其中相互依赖和相互联系的全部自然地理因素,因此划分的指标应当以綜合的为原則。能否正确地反映客观真实性,要看主观的成分多少为轉移,要做到主观与客观完全統一起来,或者更确切地說,把二者之间的
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