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1.
龙蕾 《价值工程》2012,31(16):43
利用水资源结构的分析法,揭示出流域水流失的意义;利用水流失的特征指标与土壤侵蚀的特征指标结合水流失与土壤侵蚀的表征,针对贵州水土保持建设工作对水土保持中水保与土保的关系进行探讨。  相似文献   

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International banks, stimulated by a government weakening of property rights, have over-lent to uncredit-worthy borrowers and precipitated a crisis in the international financial system, according to Professor Pascal Salin of the Université de Paris-Dauphine. He argues that the return of responsibility can be accomplished only through o reliance on private - not government -capital administered by bankers who bear the risk of their own actions, and sound monetary policies to restore the value of savings through the reduction of inflation.  相似文献   

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王菊巍 《价值工程》2012,31(13):246
在力学中动量守恒和角动量守恒是学生容易出错的问题。本文分析了子弹击入木棒问题与子弹击入沙袋问题的区别,指出什么情况下系统的角动量守恒,什么情况下系统的动量守恒,从而说明了理论上的实际应用。  相似文献   

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李印卯  李韦玄 《价值工程》2011,30(6):156-156
当前建筑节能关系国计民生,对国家及建筑的发展具有长足的意义。本文将具体谈谈建筑节能中的一小部分——门窗的节能问题。  相似文献   

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Communities of practice are a possible mechanism for improving knowledge sharing among project managers, both within and between organizations. Based on intrinsic and extrinsic motivation, we theorize a model of participation intensity in communities of practice by project managers and explore the use of Web 2.0 technologies to increase this participation. Using structural equation modeling, we test the research model and find that the factors of reputation, enjoyment, and management support impact the participation intensity of project managers in communities of practice. However, we do not find support for the impact of Web 2.0 technologies on participation intensity. This study provides evidence that participation in communities of practice can result in individual benefits for the project manager, as well as in more far‐reaching organizational benefits.  相似文献   

6.
论公路养护中水泥路面的养护与维修   总被引:1,自引:0,他引:1  
李海霞 《价值工程》2010,29(33):74-74
本文详细的论述了公路水泥路面的养护措施和路面裂缝产生的原因及预防,并分析了水泥路面的日常维修方法。  相似文献   

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对法规要求的符合性需要策划、理解和承诺.美国食品与药品管理局(FDA)针对医疗设备行业制定了很多法律法规.而其他国家或采用了ISO9001标准,或自行制定了相似的医疗设备行业法规.  相似文献   

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In 1992, Margaret Wheatley urged leadership scholars to search for “new ways of understanding” (Wheatley, 1992/2006, p. 160). The search, with some exception, has stalled. Leadership studies remains mired in a philosophical understanding grounded in positivism. Within the current paper, an exploration of how an understanding is informed by its core philosophical assumptions is presented. An alternative framing for understandings is explored through the reconstruction of these same core philosophical assumptions. The benefits of dwelling within the alternative framing are sketched.  相似文献   

10.
听柏唯良教授讲课,是一种享受.形象地说,不是讲课,是表演.他机智诙谐的语言,在举手投足之间留给听课者以欢声笑语和豁然开朗的思维.他的课人气爆棚,这已经表明,他是营销营销学的专家.  相似文献   

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There are some kinds of violent conflicts between factions in which one generation of belligerents trains a successive generation to continue and/ or enlarge the scale of conflict in an arena where the hostilities are internecine A model is developed of the devolution of internecine conflict using the lexicon of game theory and the simple mathematics of probability Assumptions pertaining to the behavior and attitudes of factions are transcribed into mathematics to formulate a theory of conflict resolution The theory is general enough to be applied to the struggles in the Middle East as well as to warfare among youth gangs The chief proposition to emerge from the analysis demonstrates how the statistical incidence of aggressive and peaceable factions varies over time The time path has the characteristics of a stochastic process with estimable parameters  相似文献   

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富静波 《价值工程》2010,29(18):212-213
焦化厂热扎中心泵站,使用节能设备,装设变频器,进行调控。当供电系统发生故障,系统电压过低或瞬间停电,变频器停止工作;在另一受电加装直流电源供给变频器电源,使其不受电压影响而继续工作。  相似文献   

16.
历史城市是自然生态与传统文化共同作用的结晶.是中国古人尊重自然,利用自然,与自然和谐相处的例证.研究历史城市的生态保护,找出其中一些有效方法和某些规律,对于城市的生态化发展是十分重要的.论文试以徽州文化区的绩溪为例,分析其自然环境要素与人文结合的特点,乡村与城镇在选址,发展中的内在联系,绩溪县城的景观特征,提出生态保护中应注意的问题和解决措施.  相似文献   

17.
交通能耗定量化研究尝试:城市微循环交通能耗模拟   总被引:1,自引:0,他引:1  
减少城市交通能耗是建设低碳机动化的核心目标之一.城市交通能耗和城市密度、交通模式等多因素相关.研究在假设短期内城市密度、交通模式恒定的前提下,提出通过提高城市微循环交通运行效率,减少车辆延误时间,减少特定城市地块的交通能耗的尝试.以杭州市西湖区某地块为例,采用vissim仿真模型模拟地块内微循环交通系统运行,通过调整地块内部的支路间距和单行交通,减少地块内车辆延误时间,从而达到减少该城市地块交通能耗的目的.  相似文献   

18.
本文提出了一种新的风冷式机房空调节能设备,该设备通过提高风冷式机房空调的性能来降低机房空调的能耗,并通过理论计算证明风冷节能装置可以有效地提高风冷机房空调的EER,节能效果明显。  相似文献   

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The current investigation serves to assess the usefulness, lessons learned, and leader development of eight male students in a senior level university leadership class based on reading and reflection. Thematic analysis of participants’ responses revealed three major themes to explain students’ lessons learned in leader development through journaling: (a) Relationship Development, (b) Technical Skill Development, and (c) Awareness Development. Support exists for the effectiveness of reading and reflection as a pedagogical tool for leader lesson development with a college‐age sample.  相似文献   

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