立體化學變化 的英文怎麼說
中文拼音 [lìtǐhuàxuébiànhuà]
立體化學變化
英文
stereochemical change-
This thesis analyzes the mutual, complemental and fit relationship between technology 、 the corporate supply chain and organizational structure of a corporation in a comparably systematic and complete way based on the mode of integrated management by reviewing, analyzing and summarizing relative references. based on practical definitions of the concepts and variables appearing in the analysis of the relationship, investigative papers have been designed and possible development situations of technology 、 the corporate supply chain and organizational structure of different enterprises have been described in the way of determining the nature. by the statistics and analyses of the investigative papers, relativity, with the method of multi - linearity - regress analysis, and by investigating enterprises " performance in different dimensions and establishing a math mode of the relationship between
本文在企業一體化管理模式的基礎上，通過文獻資料法對相關文獻進行回顧和總結分析，較系統和全面地論述了企業技術與組織結構、組織結構和供應鏈之間存在的互動、互補和匹配關系，對這一關系中的概念和變量進行操作化定義，設計出三者對應的指標體系的調查問卷，定性描述在不同企業的技術、組織結構和供應鏈的發展狀況，通過對調查所得問卷進行統計分析，運用相關性分析和多元線性回歸分析等方法，實證調查企業在不同維度狀態下的績效，建立企業技術、組織結構、供應鏈與企業的績效之間關系的數學模型，證明企業技術、組織結構、供應鏈和企業績效存在一定的相關性，企業技術、組織結構和供應鏈三者之間的匹配關系可以影響和預測企業的績效，只有當企業的各影響因素之間相互匹配的時候，企業整體運做的效率和效果將最好。Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping
本文的主要內容如下： 1 ）對翅片管蒸發器結構特點進行分析，選取適當的微元控制體，就干、濕和霜工況下對每個微元分別進行傳熱傳質分析，基於經驗關系式確定霜的有關參數，對于霜工況下的霜生長建立模型，經適當假設，運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型，為系統模擬奠定基礎； 2 ）對蒸發在大擾動下的開、停機過程，運用動態集中參數模型進行分析和計算，為更好地描述製冷系統運行的全過程奠定基礎，同時也為製冷系統實現自動控制提供一定的理論基礎； 3 ）對蒸發器正常運行過程，運用動態分佈參數和參數間定量耦合的觀點來分析和計算，為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性； 4 ）編寫翅片管蒸發器動態特性模擬計算程序，可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場，實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。Considering the special structure of multi - ribbed slab, founding diphase body mechanical model of compound material, strengthening rib beam and rib pillar by equivalent volume ratio of concrete and slice brick, the paper drew elastic compution constant and shear constant. based on the things, the paper simplified isotropy compution model to wall, gave practical design formula of elastic mold and shear mold, provided necessary parameter for practical design formula of elastic rigidity. finally the calculating results agree well with the text results
結合密肋復合墻板的特殊構造，建立墻板的復合材料二相體力學模型，按照混凝土與砌塊體積比不變原則對肋梁肋柱同時加強，得出墻板的彈性計算常數及剪切常數，在此基礎上，進一步將墻板簡化為各向同性的計算模型，給出墻板彈性模量及剪切模量實用計算公式，為密肋復合墻板的實用彈性剛度計算公式提供必要的參數。With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed
本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。This software take full advantage of the multimedia technique, especially the three - dimensional animation, to open out the abundant meanings and scientific theories in structural chemistry by using lush graphical interfaces, lifelike animation, lifesome sound effects, alluring exhibitive technique, translate bald contents and nonobjective theories into visual, direct - viewing, lively demonstration, change static and plane teaching method into dynamic and three - dimensional teaching process with attraction and infection, realize visual and enlightened teaching
本軟體充分應用計算機多媒體特別是三維動畫製作技術以豐富的圖形界面、逼真的視頻動畫、生動的音響效果、引人入勝的表現手法揭示了結構化學中包括的豐富內涵和科學原理，將原來枯燥的內容和抽象的理論轉變為形象、直觀、生動的演示，使以前靜態的，平面式的教學變為動態的、三維立體的教學過程，具有吸引力和感染力，實現了形象化、啟發式教學。The stress state in the stainless steel pipe - titanium alloy pipe - nitinb shape memory alloy connector system is analyzed by using the theory of solid mechanics and the recovery rules of nitinb shape memory alloy with constrains on the basis of analysis of the structure of the connector system and the all steps in the preparation and the service. a mathematical model for the strength was proposed. the temperature dependence of connecting force and the maximal stress intensity in the pipe connector in the process of preparation and service was studied by programming and computing. the computing results show that the difference of heat expansile coefficient between the coupling material and the pipe material leads to the strength of connector system at room temperature less than the strength at high temperature
通過分析管接頭結構以及制備、使用的各個步驟，運用固體力學的基本理論，結合nitinb形狀記憶合金在約束下的回復規律，對不銹鋼- -鈦合金管- -四川大學碩士論文nitinb形狀記憶合金管接頭系統內的應力狀態進行了理論分析，建立了強度的數學模型，通過編程計算，研究了不銹鋼一鈦合金管一nitinb形狀記憶合金管接頭系統裝配及使用過程中的抱緊力以及最大應力強度隨溫度變化的規律。By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent
最後，本文還對絮凝動力學和絮體結構進行了研究，在前人研究的基礎上，針對高分子絮凝黃河泥沙，對絮凝過程作了一些符合試驗條件的假設，建立了顆粒碰撞頻率表達式，應用了顆粒數量平衡方程，從而建立了絮凝過程的動力學生長模型，模型計算結果與試驗數據對比表明，二者趨勢一致，在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程；對絮體結構的研究中，應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察，將絮體分為絮粒、絮團和絮網三個不同的生長階段，通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體，建立了絮體結構模型，計算得到的模型絮體分形維數基本與試驗中的實際絮體相符，在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。In chapter 2, the meteorological knowledge, data and the methods of the data processing, related to the study on the atmospheric loads, are simply presented. the model for the perfect gas constant, describes by the relative moisture, is developed. the influences of the variation in the vapor component in the atmosphere on the perfect gas constant are evaluated by using the changing characteristics of the temperature on the surface, its spatial gradient and the barometric pressure
第二章：簡要介紹大氣負荷研究所需的氣象科學知識、資料及其數據處理方法；建立相對濕度表示的大氣比氣體常數模型，利用地面溫度和空間垂直溫度梯度、壓力變化的規律估算大氣水汽組分變化對比氣體常數的影響；對中國及鄰區的地面氣壓記錄進行了預處理和網格化At the same time, in order to get adapted to the market change, improve the competitiveness, reinforce the cohesiveness and maintain the upswing trend, cec should take effective measures, such as to accept new idea and develop the managers " awareness of competitiveness ; reform the selecting and appointing mechanism ; establish a sound compensation system ; improve consumption for the position ; break the dominance of state - owned shareholders on the stock market and improve corporate governance structure ; reinforce the financial supervision on the corporation ; make a full use of restraint effect of competitiveness and reputation mechanism ; build various " golden parachutes "
與此同時， cec在企業經營者激勵與約束方面應採取針對性的措施，通過轉變觀念，樹立市場經濟的競爭意識和產權意識；改革企業經營者的選拔任用方式，積極推進企業經營者管理的市場化進程、建立科學合理的薪酬體系、規范職位消費，實行職位消費貨幣化、調整股權結構，實現投資主體多元化，健全公司法人治理結構、加強企業財務監控和內部制度建設、充分發揮市場競爭機制和聲譽機制對企業經營者的激勵約束作用、設計各種形式的「金色降落傘」等措施的實施，適應市場變化，提高企業核心競爭力，增強企業的凝聚力，保持事業的長盛不衰。Abstract : the effect of correction of self - consistent potential on electronic structure in simple cubic nanocrystal particles is calculated by means of the green ' s function method in the tight - binding approximation, taking only the nearest neighbor matrix elements into account. the numerical results show that the electronic energy spectrum is shifted, the chemical potential is not equal to the atomic energy level, the electronic density at each lattice point is changed, and the variation of electronic density at surface lattice point is the largest
文摘:在緊束縛近似下，只計及最近鄰的矩陣元，採用格林函數計算了自洽勢修正對簡立方納米晶體顆粒的電子結構的影響，發現電子能譜發生了移動，化學勢不等於格點原子能級，各格點的電子密度也發生了變化，其中以表面格點的電子密度變化最大。The efficiency and reliability of minerogenetic prediction can be improved by combining rs with gis. we processed rs images, extracted the geological information related to mineralizing, such as geology, structures, stratam, rocks, etc, synthetically analysed remote sensing, the geological data and geo - chemistry, under the guidance of the theory and mathematic model, set up gis mineralize model. on this condition, to develop this method and its theory, and to establish a system of perfect prediction, it is not only useful in studied degree area but also favorable for looking for new type and some form large - scale deposits in old studied area, and it has a great theoretical meaning
遙感與gis相結合用於成礦預測中可大大提高預測工作的效率和可靠性。通過對研究區的遙感圖像處理和地質、構造、地層、巖石、礦化蝕變等有關信息的特徵提取、遙感、地質數據和物化探數據的綜合與復合分析，在一定成礦理論和數學模型指導下，建立gis綜合找礦模型。在此基礎上，發展這一方法及理論並建立完善的預測體系，不僅對研究程度較低的新區礦床預測有用，而且對研究程度較高的老區尋找新類型和點狀大型、超大型礦床都具有重要理論意義和實際意義。In this paper, starting from the basic law of fluid me chanics, a mathematical model equation for describing the tran sient flow of the wet gas in the pipeline under peak shaving op eration is established, a simplified treatment for the model equa tion is made and a train of thought for concrete calculation is de signed
文章從流體力學的基本規律出發，建立了描述濕天然氣管道輸送調峰工況下瞬變流的數學模型方程，並對模型方程作了簡化處理，設計了具體的計算思路。Developing the lithography process models to properly characterize critical dimension ( cd ) variations caused by proximity effects and distortions introduced by patterning tool, reticule, resist exposure, development and etching, they are beneficial to develop a yield - driven layout design tool, the engineers could use it to automate the tasks of advanced mask design, verification and inspection in deep sub - micron semiconductor manufacturing
建立準確描述由於掩模製造工藝、光刻膠曝光、顯影、蝕刻所引起的光學鄰近效應和畸變所導致的關鍵尺寸變化的光刻工藝模型，有助於開發由成品率驅動的版圖設計工具，自動地實現深亞微米下半導體製造中先進的掩模設計、驗證和檢查等任務。The reform of highway construction management system is the requirements of establish the socialist market system and entering the wto. besides, it is essential to the development of highway construction and promoting the national economy and social development. based on the background of the national politics and economy system reform and analysis the problems in highway construction management, through research the organs, regulations, project management and financial systems in usa, uk, france, germany and etc., the paper described the necessity and importance of the reform from the view of economy globalization and put forward the reform ideas and contents as follows : transfer the power and duty which belong to the market scope ; enforce the laws and regulations and reinforcement ; establish the engineering sponsion and guarantee system ; build the highway construction market credit system by strengthening administration and supervision
本文基於國家政治和經濟體制改革的宏觀背景，全面分析了我國公路建設管理體制中存在的問題，從國際經濟一體化和建立社會主義市場經濟體制的視角，闡述了改革的必要性和重要性，在分析研究了美國、英國、法國、日本、德國、丹麥等國家的交通管理機構設置、制度安排、項目管理和投融資體系的基礎上，對如何改革我國的公路建設管理體制進行了較深的研究和探索，提出了改革的基本思路和主要內容，即要按照責權一致的原則，轉變管理職能；按照依法行政的要求，完善法規，加強執法；適應國家投融資體制改革需要，擴大公路建設融資渠道；按照質量、效益的原則，建立科學的工程保證擔保體系；加強建設市場管理，建立公路建設市場的信用體系。A nonlinear mathematical model is developed to determine the flow rate distribution in the parallel tubes of boiler superheater and reheater by depending on the relation of pressure drop among individual tubes and accounting for the static pressure variations in the inlet and outlet headers
根據並聯管組各根管子進、出口壓力降之間的關系，並考慮到分配集箱與匯集集箱中流體的靜壓變化，建立了鍋爐過熱器、再熱器流量分配的非線性數學模型。Finally, paper use marketing theory and method, according to actual demand and vegetables development trend of consumer, propose in order to set up a new channel, its concrete train of thought is : make great efforts to change government ' s function, accelerate setting up the material flow of vegetables and electronic business system, fully utilize enterprise ' s advantage, support the transportation and sales organization of vegetables and agricultural technology association energetically
在最後兩章，論文運用市場營銷學的理論和方法，根據武漢市消費者的實際需求和蔬菜市場的發展趨勢，提出了以建立扁平化、快捷化蔬菜營銷渠道為方向，對現有渠道進行優化和整合的方案，其具體思路是：努力轉變政府職能，加快建立蔬菜物流和電子商務系統，充分利用企業優勢，大力扶持蔬菜運銷組織和農業技術協會。This thesis analyses the changes of management environment in new period with the thought of strategy management. and the thesis also designs a set of strategic business performance appraisement index system which is integrated and scientific in terms of financial aspect and non - financial aspect, concerning to the factual situation of cpeb on the basis of appraisement index system frame in industrial enterprises set up by appreciation department, using advanced systematical appraisement and analysis method and successful experience of confrere in the home and abroad, where as it establishes a set of models on scientific appraisement method which is used to calculate the performance situation of cpeb in the past three years with the analysis and instruction to appraisement result
論文運用企業戰略管理的思想分析新時期企業經營環境的變化，運用先進的系統評價與分析方法，借鑒國外同行的成功經驗，在國內有關部門制定的工業企業評價指標體系框架的基礎上，結合長慶局的實際情況從財務和非財務兩個方面設計出一套全面科學的經營戰略性評價指標體系，並在此基礎上建立一套科學的評價方法模型，並對企業近三年的業績情況進行試算，對評價結果進行分析和說明。Studying the heat - mass transfer and multi - spices electric - chemical reaction, a dynamic temperature model was deduced for molten - carbonate fuel cell stack. the thermal radiation, shift reaction, and the change of gas spices were considered in this model. establishing momentum equation, the paper has developed a 3d temperature and flow fields model for mcfc stack based on cfd technique
建立了熔融碳酸鹽燃料電池堆內部單體的暫態溫度模型，並考慮了電堆的輻射換熱、轉換反應、反應氣體組分變化對溫度場的影響；根據mcfc的微分控制方程組，考慮氣體組分的熱力學性質及動量變化的影響，利用數值分析方法求解熔融碳酸鹽燃料電池堆的三維流場與溫度場，分析了各作用因素對熔融碳酸鹽燃料電池堆溫度分佈的影響機制。In this paper, soil microbial ecological characteristics and their influence mechanism in red soils contaminated with heavy metals were studied using the incubation experiment, and field investigations. some sensitive microbial ecological indexes and kinetic parameters were brought forward under the single pollution of cadmium or lead, and cadmium - lead - copper - zinc compound pollution ways, respectively, which will be useful reference for bioremediation, environmental quality evaluation and building up alert index systems in red soils polluted by heavy metals
本項目選擇紅壤作為研究材料，採用室內培養、野外調查以及相關數學分析相結合的研究方法，探討了重金屬污染紅壤的微生物生態特徵及其影響機制，提出了鎘、鉛單一污染和鎘、鉛、銅、鋅復合污染下紅壤微生物學敏感性生態參數及其動力學變化特徵，為重金屬污染土壤的修復、環境質量評價以及建立有效的土壤重金屬污染預警指標體系提供有益的參考。During the three days, a schedule of live performances and demonstrations by well - qualified instructors of scs was open to public viewing. they included chinese classical music, brain gym, qi gong, the art of paper - cutting, special photographic techniques and computer animation techniques. these were practical ways of bringing the schools spirit of learning into the community
為期三天的展覽設有精采表演，由學院資深導師及專人表演中樂、健腦操、氣功、剪紙藝術、特別攝影技巧、及介紹運用電腦自動化技術將動畫內的角色變得立體化的方法等，將終身學習的精神帶到社區每一個角落。分享友人