第二展向系數 的英文怎麼說
中文拼音 [dìèrzhǎnxiàngxìshǔ]
第二展向系數
英文
second virial coefficient-
Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed 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 " ; ( 2 ) looked 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 ; ( 3 ) expatiated 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 ; ( 4 ) thorough 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 ; ( 5 ) synthetically 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 ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation 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 ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources
基於以上考慮，論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討：全面回顧了「可持續發展」概念的由來與演變，對國內外「可持續發展」的研究現狀進行了述評，並對「可持續發展」概念的科學內涵進行了深入探討；對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述，對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解；全面闡述了地下水資源變值系統理論的內容和意義，並與傳統的地下水資源計算評價方法進行了對比分析，結合實例具體說明了方法的應用；深入分析了地下水資源預測預報工作的極端重要性和復雜性，對傳統的地下水資源動態預測方法進行了全面的評述，指出了各類預測預報方法的特點及適用條件，對最近二十多年剛發展起來的小波分析技術的主要思想和方法及其應用范圍，以及號稱第五代計算機語言的matlab軟體和附帶的小波分析工具箱進行了介紹，並應用於地下水動態過程線的分析，採用時間序列中的b ? j法，蒙特卡羅方法，與地下水資源變值系統理論相結合，探討了地下水動態資料分析和地下水資源預測預報的新思路；綜合分析了現今各類地下水管理模型的特點及缺陷，將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度，使模型更準確、更實用；對保證地下水資源可持續開發的內部條件和外部條件進行了分析，內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀，科學的資源計算與評價方法，可靠的資源預測預報技術，可操作的資源管理措施，外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。This text divides into five chapters altogether : chapter one in the introduction, have introduced the common sensor of displacement, has pointed out the fine characteristic of hall ' s sensor, put forward the basic task ; chapter two have introduced the basic operation principle of hall ' s component ; chapter three introduce hall temperature performance, electromagnetic characteristic, zero error, frequency characteristic and these parameter commonly used compensation method and hall simple application of component ; chapter four having recommended the measurement principle of the feedback servo mechanism, systematic implementation method, the experimental result has appeared, structure the mathematics model, and has analysed the error ; chapter five have pointed out the developing direction in the future while looking forward to
本文共分為五章：第一章緒論中，介紹了常見的位移傳感器，指出了霍爾傳感器的優良特性，提出了基本任務；第二章介紹了霍爾元件的基本工作原理；第三章介紹了霍爾元件的溫度性能、電磁特性、零位誤差、頻率特性以及這些參數常用的補償方法和霍爾元件的簡單應用；第四章介紹了反饋隨動機構的測量原理，系統的實現方法，給出了實驗結果，構建了數學模型，並對誤差進行了分析；第五章展望中指出了今後的發展方向。The content of this paper is arranged as foll owing : chapter 1 introduces the concept of credit, credit risk and credit assessment, as well as the history and development of credit assessment ; chapter 2 introduces the history of ai technology, and the background of expert system and neural network. characters and disadvantages of expert system and neural network are presented respectively and the necessity of combining expert system and neural network is lightened ; chapter 3 shows the process of dealing with sample data, including the treatment of exceptional data and factor analysis, and puts forward the concrete framework of the mixed - expert credit assessment system ; chapter 4 introduces concept of object - oriented technology, and constructs object model and functional model after analyzing the whole system. it also illustrates the implementation of concrete classes by an example of rule class and the inference algorithm in the form of pseudocode ; chapter 5 introduces the structure of the whole system, the major functional models and their interfaces, and the characteristic of the system is also generalized ; chapter 6 summarizes the whole work, and points out the remaining deficiencies as well as the prospective of this method
本文具體內容安排如下：第一章介紹了信用、信用風險、信用評價的概念，回顧了信用評價的歷史、發展和現狀，並綜合各種信用評價模型，指出這些模型各自的優缺點：第二章簡單描述了人工智慧技術，著重介紹有關專家系統與神經網路的基礎知識，通過總結它們的優缺點，指出結合專家系統與神經網路構造混合型專家系統的必要性；本章還介紹了神經網路子模塊的概念，提出了混合型專家系統的一般框架與設計步驟：第三章對樣本數據進行處理，包括異常數據的剔除、因子分析等，提出了信用評價混合型專家系統的具體框架結構，介紹了系統知識庫的主要部分、基於優先級的正向推理機制的流程、以及基於事實的自動解釋機制的具體實現方法；第四章介紹了面向對象技術，進而採用面向對象對信用評價系統進行分析，建立了對象模型和功能模型，並在此基礎上，採用c + +語言以規則類為例說明系統中具體類的實現，用偽代碼的形式描述了推理的演算法；第五章描述了整個系統的結構，對系統主要功能模塊和界面進行了介紹，並總結系統的特點；第六章總結了全文，指出本文所構造系統存在的不足以及對將來的展望。In chapter 9 we summarize the whole paper, and explain the shortages of this paper and problems to further study. main conclusions of this paper are as follows : the first, state - owned funds have always been predominant in venture capital sources in china, and this caused the " government - operated model " which leads to excessive government ' s interferes and distorted venture capital contracts ; the second, limited partnership contract is better than incorporated company contract, because the former has obvious advantages in not only encouragement and controls, but also in investors " profits. however, this paper insists, incorporated company contracts will still be very popular in the near future because limited partnership still be illegal in most provinces of china ; the third, venture capitalists " share of profits in compensation clause of fundraising contracts is influenced by investors " attitude towards difficulties and obstacles of future investment
本文研究的主要結論：第一，在我國風險資本來源中，政府風險資本一直居於主導地位，這造就了我國風險投資的「官辦官營」模式，使其契約機制從一開始就帶有「行政干預」的烙印；第二，有限合夥契約在約束機制、激勵機制、投資者收益三個方面都明顯優于公司制契約，因此是我國風險融資契約的發展方向，但由於有限合夥在我國受到法律限制，公司制契約在一定時期內仍是我國風險融資契約的主要形式；第三，融資契約報酬條款中的激勵系數受主體先驗概率影響，借鑒有限合夥契約，可對我國公司制融資契約進行改造與重構；第四，與債權契約、普通股契約相比，可轉換優先股契約可以有效緩解風險投資過程中的信息不對稱、降低代理成本，因此是我國風險投資契約的最優選擇。Finally, in the third section, by constructing some functional which similar to the conservation law of evolution equation and the technical estimates, we prove that in the inviscid limit the solution of generalized derivative ginzburg - landau equation ( ggl equation ) converges to the solution of derivative nonlinear schrodinger equation correspondently in one - dimension ; the existence of global smooth solution for a class of generalized derivative ginzburg - landau equation are proved in two - dimension, in some special case, we prove that the solution of ggl equation converges to the weak solution of derivative nonlinear schrodinger equation ; in general case, by using some integral identities of solution for generalized ginzburg - landau equations with inhomogeneous boundary condition and the estimates for the l ~ ( 2 ) norm on boundary of normal derivative and h ~ ( 1 ) ' norm of solution, we prove the existence of global weak solution of the inhomogeneous boundary value problem for generalized ginzburg - landau equations
第三部分：在一維情形，我們考慮了一類帶導數項的ginzburg ? landau方程，通過構造一些類似於發展方程守恆律的泛函及巧妙的積分估計，證明了當粘性系數趨于零時， ginzburg ? landau方程的解逼近相應的帶導數項的schr （ ? ） dinger方程的解，並給出了最優收斂速度估計；在二維情形，我們證明了一類帶導數項的廣義ginzburg ? landau方程整體光滑解的存在性，以及在某種特殊情形下， gl方程的解趨近於相應的帶導數項的schr （ ? ） dinger方程的弱解；在一般情形下，我們討論了一類ginzburg ? landau方程的非齊次邊值問題，通過幾個積分恆等式，同時估計解的h ~ 1模及法向導數在邊界上的模，證明了整體弱解的存在性。The arable land classification system can be subdivided tree models : the arable land classification subsystem, the query and analysis subsystem and the dynamic update subsystem. in the first part the author discusses how to construct the arable land classification information system, which emphasizes the formation and the function of the system. the second part is the concrete example of the appliance in the arable land classification system where the process of the arable land classification, the classification data products and its analysis are introduced explicitly
全文分為三部分：第一部分為農用地分等信息系統的構建，著重論述了分等信息系統的構成、功能，可以分為分等子系統、查詢分析子系統和動態更新子系統三個功能模塊；第二部分為實例分析，重點論述了分等子系統在農用地分等工作中的應用、數據成果及其分析；第三部分為農用地分等信息系統的特點及其展望，分析了該系統的特點和不足，提出發展的方向。In this chapter, the basic concept of the system is summarized according to the main experience of the bridge ' s managing system in mainland and foreign, and the developmental history and present state of the bridge ' s managing system is reviewed ; the second chapter is the data managing subsystem. this subsystem is the base in the whole computer system. these data, that of bridge ' s design, record in the period of constructing, datum in experiment and that of datum by regular check and the check in important place, are all collected in this system ; the third chapter is the evaluated subsystem
全文共分為七章：第一章是緒論部分，根據國內外橋梁管理系統實踐的主要經驗，總結和概括了橋梁維修加固計算機系統的基本概念，回顧了橋梁管理系統的發展歷史及現狀，確定了本文的研究方向和指導思想；第二章是數據管理子系統，收集了橋梁的設計、施工記錄和試驗資料的數據，以及橋梁檢測資料包括通過常規檢查和重點部位檢查得到的相關數據。Second virial coefficient
第二展向系數In the first part, hilbert ' s 16th problem and the studies on it are introduced, and the results of zq - equivariant vector fields of degree 5 ( q = 2, 3, 5, 6 ) are given. in the second part, the definitions of zq - equivariant vector fields and the method of detection functions are stated, and all the forms of nontrivial zq - equivariant planar polynomial vector fields of degree 7 are obtained. in the third part, a concrete numerical example of zt - equivariant perturbed planar hamiltonian system of degree 7 is constructed, and for the unperturbed vector field having maximal number of centers, its global phase portraits are analyzed ( having at least 9 topologically different phase portraits ). then, for a given parameter group, its phase portrait trend is studied
第一部分介紹了hilbert第16問題以及它的研究與發展現狀，給出了近年來利用李繼彬提出的判定函數法得出的z _ q -等變（ g = 2 ， 3 ， 5 ， 6 ）的5次系統關於它的第二部分的研究結果；第二部分介紹了z _ q -等變向量場以及判定函數法，給出了7次平面多項式系統的所有非平凡z _ q -等變向量場具有的形式；第三部分給出了一個7次平面擾動hamilton系統，研究了它的具有最大中心數的未擾動系統（ z _ 7 -等變）的全局象圖，得到了9種不同的拓撲圖形。How to maintain a good relation with professional channels ? the thesis discusses above issue from several aspects. firstly, the definition and character of mass - decentr alized communication and the reflection of composite channels " development by charts and figures ; secondly, the reasons why composite channels are still a main part of media market, outlining the causes from three hands : the character of chinese audience, the present situation of chinese channels, mainly in the ability of producing programs and the models of some foreign channels excelling in producing marketing and so on ; thirdly, the strategy of composite channels " development, including the choice of programs, the arrangement of channel structure and the marketing strategy of famous - brand in the composite channels
全文主要從三個角度對綜合頻道的發展進行闡述：第一部分，概括了分眾化傳播時代的特點和實質以及用圖表、相關數據結合理論分析近年來1 ，國頻道發展過程中出現的一系列的問題:即電視劇仍是各頻道播出節目的主體、一}了日1司質化傾向嚴重、頻道資源的優化組合問題啞待解決以及頻道劃分不夠科學和合理，頻道定位不明確;第二部分，從中國電視受眾的實際情況（包括受眾的年齡、性別、教育程度、家庭收入、觀眾的收視行為、文化產品的消費習慣、思維習慣和收視心理） 、中國的媒介大環境（主要是節目製作能力） 、國外的傳媒環境（側重於abc7頻道和法國電視二臺的經驗分析）三個方一面闡釋綜合頻道仍能繼續發展、大有作為的原因;第三部分，也是全文最重要的部分?中國綜合頻道的發展，錢略。Since cellular network technology was put forward by bell lab, mobile communication has entered into a fast development period. from first analog generation to second digital generation, and up to wideband 3g and so - called 4g at present, mobile communication aims to personal communication
從第一代的模擬通信到第二代的數字通信，直至第三代的寬帶通信和目前人們提出的所謂4g寬帶多媒體系統，都是在向著個人通信的目標發展。The first and second parts of the article discuss about the basic performance evaluating theories and the evolvement of western and chinese performance evaluating system, which makes the basic theory of expressway company performance evaluating system design. the third part analyzes the actuality of the characteristics of expressway and expressway management in sichuan. based on the former three studies, the fourth part advances the thought of establishing expressway company performance evaluating system, especially analyzes the structure and proportion design of expressway company performance evaluating index system
論文的第一、二部分圍繞效績評價的基礎性理論和西方國家、中國的效績評價演進歷程進行論述，它構成了設計高速公路公司效績評價體系的理論基礎；第三部分圍繞高速公路行業的特點和我省高速公路管理的現狀進行分析，指出了建立高速公路公司效績評價體系的必要性和需要考慮的行業特性；第四部分是在前面三部分研究的基礎上，提出建立高速公路公司效績評價體系的思路，重點分析了高速公路公司效績評價指標體系的構成及其權數設計，構建了高速公路公司效績評價體系；每五部分通過對高速公路公司效績評價體系的實際應用，來驗證高速公路公司效績評價體系的實用性和可行性，並提出了今後的發展方向。In this case, we give the formulas to caiculate first - to third - order perturbation coefficients of the eigenvalues and first - to second - order perturbation coefficients of the eigenvectors. 1n second case where the eigenprobiem for the first - order perturbation coefficients of a defective eigenvalue hajs repeated eigenvalues, we give the formulas to calculate the first - to third - order perturbation coefficients of the eigenvalues and first order perturbation coefficients of the eigenvectors. the third case is an extension of the first case, where one of the first - order perturbation coefficients of the eigenvalues associated with the lowest - order jordan blocks is zero
第一種情形是特徵值一階攝動系數都不相同，在這種情形下，我們給出了計算特徵值1到3階攝動系數以及計算特徵向量1到2階攝動系數的計算公式；第二種情形是特徵值一階攝動系數有相等的情形，在這種情形下，我們給出了計算特徵值1到3階攝動系數以及計算特徵向量1階攝動系數的計算公式；第三種情形是第一種情形的擴展，此時對應于最低階jordan塊的特徵值一階攝動系數有一個是零。The paper mainly introduces existent questions blocked ecdis " development in the first chapter, analyzes merits and shortcoming synthetically and puts forward author " s methods at last ; introduces briefly design and structure on web - based e - chart in second chapter ; introduces some pivotal technologys in the webchart system and build the chart data model in the third chapter ; explains all website " s design and structure in the fourth chapter ; points out the development aspect in the future and some needed works in this system in the last chapter. in conclusion, webchart " s database is published to the internet site
在第一章中主要介紹制約電子海圖顯示與信息系統技術發展的幾個因素，提出擴大電子海圖應用范圍所存在的主要問題及解決的技術和方法，並且使電子海圖應用於現代物流中；第二章簡要介紹了web下電子海圖系統的設計與實現，對各種方法進行了比較；第三章介紹web下電子海圖顯示及控制採用的關鍵技術以及海圖數據模型的建立；第四章主要說明了現代物流網站的設計與架構；最後一章指明了系統將來的發展方向和所需要做的工作。At first, i developed the principle and restrictive factor to optimize the investment structure of regional industry ; secondly, i applied the grey theory to research the relationship between structure of investment and structure of industry, the relationship between structure of industry and economy of region. ; thirdly, three methods, including ahp, principal component analysis and relative potential were exerted to research the order of investment afterward, i developed qualitative analysis to the third industry, and put forward suggest to its progress direction ; fourthly, using economics and operational research ' s thoughtway for reference, i upbuilt the dynamic model of investment portion model. at last, according as the regional concrete situation and market environment of wto transition period, i developed some policy suggests, in order ensuring the optimization of investment structure to be realized successfully
首先，提出了優化區域產業投資結構的原則和制約因素；其次，運用灰色系統理論對區域的產業結構與整體經濟、投資結構與產業結構的關系進行論證分析；第三，建立了區域產業投資結構評價指標體系，並運用ahp法、主成份分析法和相對勢法對河北省第一、第二產業投資排序進行了研究，然後，在充分利用現有數據的前提下對第三產業進行了定性的分析，並對第三產業的發展方向提出了建議；第四，借鑒了經濟學、管理學、運籌學等一些理論的思想方法，建立了區域產業連續投資分配比例模型；最後，根據河北省情，結合中國進入wto的過渡期市場環境，提出了一些政策建議，以達到實現河北省產業投資結構優化的目的。Furthermore, in the second part, the author makes a deeply discussion and research on the design scheme of dalian tv station non - linear av editing network including the double - net framework, the digital compress technique, the virtual storage technique, the choices of digital compress format, the account of terminal stations, the manage functions and security of the system, etc. finally, in the third part, the author introduces the progress of non - linear av editing network in the future, showing the choices of compress format, software function, i / o interface, whole system of programming and broadcast, combining with internet and interactive tv, points out the direction of tomorrow tv technology system
在此基礎上，隨后在文章第二部分對大連電視臺的非線性視音頻編輯網建設從其核心技術與具體網路設計方案進行了詳細的闡述。其核心技術主要包括雙網結構、數字壓縮技術、虛擬存儲技術等；具體網路設計方案則包括數字壓縮格式的選擇、站點的數量及功能、系統的管理功能及安全性分析等幾個方面。文章的第三部分則主要通過壓縮格式選擇、軟體功能、上下載介面、制播一體化、與internet結合、交互電視等方面展開對電視臺非線性編輯網路的發展的論述，指出未來電視技術系統的發展方向。In the past 30 years, the database system has already developed the no relational model, the next generation object - relational database system ( ordbs ), the third generation object oriented database system ( oodbs ). in the 1990s later, for the speed of the internet technique, the website base based on the internet promoted the information resource share
經過30年的發展，數據庫系統已經歷了第一非關系型數據庫、第二代關系型數據庫（ ordbs ）的發展到面向對象數據庫系統（ oodbs ）和各種專業數據庫。九十年代後由于網際網路絡技術的飛速發展，基於網際網路的網站數據庫技術為信息資源的共享提供了技術上的保障。To this end, we should agricultural information in the analysis of the agricultural economy and the main role is the role of mechanisms on the basis of an adaptation to the conditions of our country ' s agricultural information to the agricultural economic development model to guide the economic development of china ' s agriculture practice
第二部分，研究我國農業信息化及農業經濟發展現狀。首先，闡析了我國農業信息化現狀，並對我國農業信息化現狀進行了評價。在此基礎上，利用相關數學模型，推導出農業信息化與農業經濟發展具有正向線性關系。Chapter 1 introduce the development situation of the marine multi - component seismic exploration technology in our country and abroad. chapter 2 sum up the structure of the system. chapter 3 to 6 includes the design and function of the homemade sample equipment and the advantage of its key technique. just as omnidirectional geophone struture, ocean bottom cable, data acquisition unit and recording system etc. chapter 7 carefully instructs test situation of converted wave acquisition on the sea and appreciates the data quality
第一章主要介紹了目前海上多波勘探技術的國內發展概況及市場需求，第二章對整個系統的構成及各部分的功能進行了簡要的總結，第三章至第六章詳細討論了各功能模塊的原理、技術指標及創新點，包括各項關鍵技術的突破，如三分量萬向平衡裝置的理論計算及設計，數字包電路設計原理，鎧裝結構電纜的設計及系統主機的特點等。The history of the development of database technology can be divided into three phases : the first generation is the reticulation / hierarchical data model based on database ; the second generation is the relational data model based database ; the third generation database which has the object oriented character breakthroughs the localization of the traditional database model which is unable to build model based on complex data structure. the third generation has led the database system to a new time
數據庫技術的發展經歷了三個階段：第一代數據庫系統是基於網狀、層狀數據模型的網狀、層狀數據庫管理系統；第二代數據庫是基於平面關系模型的關系數據庫系統；以面向對象模型為代表的第三代數據庫系統突破了傳統數據模型在復雜數據建模和管理方面存在的局限性，使數據庫系統進入了新的時代。分享友人