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Using the one-atom theory, the electronic structures of Pt-electrocatalyst with fcc structure was determined as follows:(5dn)6.48 (5dc)2.02 (6sc)1.48(6sf)0.02. Compared to the result obtained by the first-principle method such as FP-LMTO, CASTEP, their results are in good agreement with each other. Comparing the calculations of physical properties such as lattice constants, cohesive energy and bulk modulus by OA method and first-principle method, the result obtained by OA method is in excellent agreement with experimental value, but the result obtained by first-principle method is not accordable. The relationship between the electronic structures and catalytic performance was explained qualitatively by OA method and first principle method according to its electronic structures. Because the d-orbital vacancies increases and static density is high around Fermi energy band, Pt has good catalytic performance.

摘 要:依据纯金属单原子理论确定面心立方结构电催化剂Pt的电子结构为(5dn)6.48(5dc)2.02-(6sc)1.48(6sf)0.02,与采用第一原理的FP-LMTO和CASTEP等方法所计算的电子结构相比较,其结果非常相近;由OA理论和第一原理方法计算的晶格常数、结合能、体弹性模量等物理参数进行比较,OA理论计算的结果与实验值较符合,而第一原理方法计算的结果与实验值相差较大;在此基础上用OA理论和第一原理方法研究了Pt的电子结构与催化性能的关系,由于d带空穴增多和费米能级附近态密度较高,导致金属Pt的催化性能很好。

Constructed "Singlecenter-sixphase-eightseries" structural theory models for psychological health, included support structure theory model, 2-pole, as well as several psychological health structural theory models: 4 areas, 8 level, acetabuliform, sphericity, 24 aspects, 72 special, 144 elements.8. Broaden the road towards popular development of psychological health.

构建了心理健康一心六相八系结构理论模型;包括支柱结构理论模型:2极结构理论模型;还有心理健康的4领域、8层次、碟型、球状、24方面、72专项、144要素多种结构理论模型。8、拓宽了心理健康测评的大众化发展之路。

with the methods of documentary review, analogism, induction, deduction and logical analysis, the theoretical system of chinese and western physical training is taken as research objects.

以中西方身体训练的理论体系作为研究对象,采用文献资料研究法、类比推论、归纳与演绎,以及逻辑分析法等科研方法,从中西方自然观和身体观的比较入手,探讨建立在东方&元气论&和西方&原子论&基础上的身体训练理论的差异,从而客观评价中国传统身体训练的理论体系,并为系统整理中国传统身体训练理论奠定基础。

In China, the study on it is in its first stage, so the systemic research is of great theoretical significance and practical value to the development of aseismic design theory.

这一理论的研究在我国还处于起步阶段,因此,系统地研究基于性能的结构抗震设计理论,对我国抗震设计理论的发展具有重要的理论意义和实用价值。

Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows:①reviewed entirely the origin and evolvement of the concept "sustainable development", stated and commented the study status in queue on"sustainable development"around national and international range, thorough discussed the science connotation about the concept "sustainable development";②looked back and commented across-the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings;③expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory;④thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the MATLAB software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the B-J method and Morte-Carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources;⑤synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming, mathematical statistics, random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality;⑥analyzed the inside condition and outside condition to assure the sustainable and optimum exploitation of groundwater resources, the inside conditions are the follows: correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows: the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water-saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology;⑦scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy;⑧point out the more directions on groundwater resources.

它将为制定水资源的可持续发展目标和战略决策提供科学依据,为制定社会、经济可持续发展战略提供理论基础。基于以上考虑,论文主要从以下几方面对地下水资源可持续开发问题进行了比较深入的探讨:①全面回顾了&可持续发展&概念的由来与演变,对国内外&可持续发展&的研究现状进行了述评,并对&可持续发展&概念的科学内涵进行了深入探讨;②对涉及地下水资源的一些最基本的概念和命题进行了全面的回顾和评述,对目前仍然存在的一些错误观点和混乱认识提出了自己的见解;③全面阐述了地下水资源变值系统理论的内容和意义,并与传统的地下水资源计算评价方法进行了对比分析,结合实例具体说明了方法的应用;④深入分析了地下水资源预测预报工作的极端重要性和复杂性,对传统的地下水资源动态预测方法进行了全面的评述,指出了各类预测预报方法的特点及适用条件,对最近二十多年刚发展起来的小波分析技术的主要思想和方法及其应用范围,以及号称第五代计算机语言的MATLAB软件和附带的小波分析工具箱进行了介绍,并应用于地下水动态过程线的分析,采用时间序列中的B-J法,蒙特卡罗方法,与地下水资源变值系统理论相结合,探讨了地下水动态资料分析和地下水资源预测预报的新思路;⑤综合分析了现今各类地下水管理模型的特点及缺陷,将数学规划、数理统计、随机过程等与地下水变值系统理论相结合进行地表水地下水或多水源的联合优化调度,使模型更准确、更实用;⑥对保证地下水资源可持续开发的内部条件和外部条件进行了分析,内部条件主要是正确的资源观,科学的资源计算与评价方法,可靠的资源预测预报技术,可操作的资源管理措施,外部条件主要是高层发展思路、管理体制的变革、配套的政策法规、经济杠杆的调节、人文素质的提高、节水意识的增强及具体节水措施、人口增长的控制、水体污染的防治、生态的恢复和重建等;⑦从宇宙科学、地球系统科学及哲学的高度审视地下水资源的可持续开发;⑧指出了地下水资源可持续开发的进一步研究方向。

In the aspect of the Philosophy of Language, Montague Grammar inherited Frege's theory of meaning, Russell's theory of reference, Carnap's theory of verification, Goodman's Modern Realism, Tarski's theory of truth, Kripke's semantics of possible worlds of modal logic, etc, and opens up a new direction in the study of Formal Semantics of natural language; in the aspect of Theoretic Linguistics, Montague was influenced by Chomsky's research idea about the formal treatment of the syntax in natural language and extended it to the semantic study of natural language; Montague Grammar has two theoretic sources: One is the Logical Semantics and Intensional Type Theory in Logic, and the other is Categorial Grammar and Transformative Generative Grammar in Linguistics.

在语言哲学方面它继承了弗雷格的意义论,罗素的指称论,卡尔纳曾的实证主义,古德曼的现代实在论,塔斯基的语义学真理论,克里普克的模态逻辑可能世界语义学的传统,开辟了自然语言形式语义学研究的新方向;在理论语言学方面,他受乔姆斯基形式化语言研究思想的影响,并把这一思想扩展到自然语言的语义研究方面;蒙太格语法的理论来源有两个方面:逻辑方面是逻辑语义学思想和内涵类型论理论,语言学方面是范畴语法和转换生成语法。

In the first place,this paper reviews from the perspective of organizational transformation some theories such as "destructive innovation" theory, Chandler's "visible hand" theory, Business Process Reengineering and Business X Reengineering theory brought forward by James Champy.

首先,论文从组织变革的角度回顾了熊彼特&破坏性创新&理论、钱德勒的管理协调理论、哈默与钱皮的企业再造理论以及钱皮提出的企业X再造理论

This thesis explains basic financial innovation theorems including "circumventive innovation theorem","transaction cost innovation theorem" and " value chain theory ", etc and the relationship between these theorems and Internet banking; on the basis of analyzing the developing history and current situation of Internet banking business in foreign countries and in china, it points out the major problems existing in our Internet banking innovation, summarizes the experiences in foreign Internet banking which can be referential to our commercial banks, and gets to the conclusion that meeting customer's demands and keeping, maintaining, utilizing the customer relationship effectively are the key points in Internet banking innovation.

阐释了&规避管制理论&、&交易成本理论&、&价值链理论&等金融创新理论的基本内容及其与网络银行业务创新的关系;通过对国内外网络银行业务功能发展历程的简要回顾和对其业务创新现状的介绍,总结了国外发展网络银行业务过程中可供我国商业银行借鉴的经验,探讨了我国网络银行业务创新存在的主要问题,并认为满足客户需求,保持、维护并有效利用银行与客户间的关系是进行网络银行业务创新的关键所在。

In this chapter, I choose the Swedish Social Democratic Labor Party, the Social Democratic Party of Germany, the French socialist Party and the British Labor Party as the sample to explore their experience of ruling, and the achievement and the contributiveness of European Socialist Parties\' ruling .

第五章:欧洲社会党执政的理论经验。这一部分阐述了二战后欧洲社会党重大的、标志性的理论更新与调整。第一次理论更新是以《哥德斯堡纲领》为标志,第二次理论更新是以&第三条道路&为标志。文章指出:欧洲社会党总是根

This text on the basis of deeply understanding of the book "The Course Standard of Chinese" and drawing experience from the research about dialogic reading teaching, attempts to probe into the new topic of teaching in two aspects ...

第二部分:为对话式阅读教学的理论基础,主要探讨对话理论和对话教学理论给阅读教学带来的启示,并为下文的改进策略提供理论支持和指导。

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推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。