風能利用系數 的英文怎麼說

中文拼音 [fēngnénglìyòngxìshǔ]
風能利用系數 英文
rotor power coefficient
  • 風 : Ⅰ名詞1 （空氣流動） wind 2 （風氣; 風俗） practice; atmosphere; custom 3 （景象） scene; view 4 ...
  • 能 : 能名詞（姓氏） a surname
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. The simulative cloud image, made from the mixing ratios of cloud liquid water, rain water, ice crystal, snow, graupel which were outputted by the mesoscale model mm5, resemble the gms satellite infrared image very well and also show the cloud evolution of typhoon winnie from tropical cyclone to extratropical cyclone after landing

    利用高解析度中尺度數值模式輸出的大氣中雲水冰水雨水雪水成功地模擬出1997年登陸臺風winnie的雲系結構。模擬雲圖與氣象衛星實際觀測的臺風雲圖非常相似。由於模擬雲圖可以給出大氣中不同形態水物質的三維空間分佈，彌補了衛星只能觀測雲頂表面的不足。
  2. In order to benefit from this new technique without any dangers, on the basis of the arguable contents, the paper put forward a series of principals with the knowledge of systematical philosophy, mathematics and ecological. agriculture : welfare principal, invariable principal of gene, non - spread principal of gene, equal principal of substance and informed perfectible principal. and then we establish a model of evaluating the social effects of gmo

    為了從這種新技術成果中獲得好處，同時又不會帶來風險，本文以爭論的內容為基礎，從轉基因作物能比傳統農作物帶來更多的社會效益的角度出發，運用系統哲學、生態農業和數學的一些知識，提出了轉基因作物研究和推廣中遵循的一系列原則：福利原則、基因穩定性原則、基因不擴散原則、實質等同性原則、以及知情選擇原則，並進而建立起評價具體的轉基因作物的社會效益的模型。
  3. The multi - aptitude body uncertain composed methods are used to deal with the historical data and forecast ways in which the minimum variance hedge ratio is calculated synthetically ， in order to foster calculational reliability of the minimum variance hedge ratio in hedging of stock index futures the mathematical hedging model which is consists of

    本文利用多智能體系統不確定性結論合成方法（ mabm ） ，將股票指數期貨套期保值最小風險保值比率計算的歷史數據分析法和預測法進行了綜合處理，進而提高股指期貨最小風險保值比率的可靠性。基於資本資產的定價模型建立由
  4. Independent air hating system, oven with sealed round hole array with hot air curtain, automatic oven temperature detector and control, dro, application of second time reflex of heat energy and centralize waste discharge result in energy and cost saving

    獨立的熱風加熱系統，密閉式圓孔陣列風幕式熱風乾燥烘箱，烘箱溫度自動檢測控制、數字顯示，熱能二次迴流利用，集中排廢裝置，有效地降低能耗、節約成本。
  5. Compared with fix - pitch wind turbine, the variable - pitch wind turbine has the virtue : stable output power over rated power, high wind power coefficient, holding rated power at high wind speed, good starting and shut - off etc.

    變槳距風力發電機組與定槳距風力發電機組相比，在額定功率點以上輸出功率平穩、具有較高的風能利用系數、能夠確保高風速段的額定功率、起動性能與制動性能好等特點。
  6. Due to its flexibility, the lrt system can be designed to match both the physical environment and transport demands as well as to provide an alternative choice with quality service. all these factors have contributed to the phasing - out of the old streetcar systems. beginning in the mid - 1970s, light rail transit systems have enjoyed a period of sustained growth, not only providing public transportation but also contributing to the renewal of declining city districts, reutilizing unused rail lines, and providing impetus to local economic development

    使得有軌電車自1970年代中期，以輕軌運輸的新風貌漸漸復興，不僅擔負公共運輸功能，更常結合老市區都市更新、舊鐵道再利用、促進經濟再發展的聯合開發計畫，吸引民間投資參與建設，透過由街道面進出的低月臺車站、無欄柵式收費制度、造型流線超低底盤車輛、軌道沿線綠化設施等設計，在都市環境改善與都市永續經營上，充分發揮凈化、綠化、人性化、地標化等效益，發展至今估計全世界輕軌運輸系統路網數目已達約400個左右。
  7. The optimum inclination angle is between 15 ~ 20, the length of thermosyphon will not change the phase - change heat transfer coefficient of the evaporation section and the condensation, which will enlarge heat transfer area of thermosyphon and increase the heat exchange capacity. the head - on speed of wind only stranger the heat transfer of the evaporation section and the condensation section. the experiment shows that the mathematic model closely fits to the thermosyphon, moreover, the one key to resolve the thermosyphon effect lies in decreasing the thermoresistance of evaporating section and condensation section. this study can provide directions and experience in the future research

    傾斜角越大，熱虹吸管總熱阻越大，最佳傾角在15 20之間;充液率過多或過少都會對傳熱性能產生不利影響，對于本實驗採用的1 . 75m 、 2m 、 2 . 5m 、 3m熱虹吸管，最佳充液率在20 % 35 %之間;管長對傳熱也有影響，管長不改變熱虹吸管蒸發段和冷凝段的換熱系數，只增加了熱虹吸管的換熱面積，增大換熱量;迎面風速的大小，起到強化熱虹吸管蒸發段和冷凝段換熱的目的。
  8. Whereafter, based on the analysis on the flood influence for traffic lines, the research is centered on the following parts : firstly, the destroying modes, reasons and mechanism of flooded lines are discussed, and the frameworks and countermeasures of preventing and controlling hazards system are put forward ; secondly, the ways of region forecasting for the landslide are analyzed and the automation of landslide forecast for certain site through visual programming is realized. furthermore, the function of dynamic segmentation in arc view is made use of to realize the forecast result ' s visualization ; thirdly, the reasons and patterns of roadbed subsidence are discussed and the methods of forecasting subsidence based on the gm ( 1, 1 ) model are put forward. then the applications of the arcview software and its extended module on the study of roadbed subsidence are debates upon ; fourthly, an analysis on the sources of flood for traffic lines, which situate in the reservoir coverage area, is given

    接著，論文探討了山區交通線路災害的特點、分類、時間和空間分佈規律以及災害的防治原則和對策等；然後，以洪水災害對交通線路的毀壞為主線，重點研究和分析了以下幾個問題：第一，探討了洪水對交通線路的破壞方式，水毀原因以及水毀機理，並提出了交通線路水毀防禦系統框架和對策；第二，分析了雨季邊坡塌方災害的區段預測方法；通過可視化編程，編制了雨季邊坡塌方災害的工點預報程序，並結合arcview實現了預測結果的可視化；第三，對路基沉陷原因和模式進行了分析，並提出利用gm （ 1 ， 1 ）模型對路基沉陷區進行分析和預測，最後論述了arcview軟體及其擴展模塊在沉陷區研究分析中的應用；第四，對汛期庫區線路災害的原因進行了分析，並探討了利用數量化理論對路基防護工程抗洪能力進行預測的意義；第五，提出從風險的角度對交通線路的防災減災進行管理，對風險估計的相關問題進行了論述，並探討了交通線路水害危險區段的劃分問題。
  9. High speed : high efficiency and low resistance moment, under the same conditions, the generator speed can reach at 1. 5 or 3 times of the normal generator ' s, so it can be make good use of

    轉的快：電機輕快高效，阻力矩極小，同等條件下，轉速是其它電機轉速的1 . 5到3倍，風葉的風能利用系數更高，可以發更多的電。
  10. Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed

    論文首先分析了風機運行特性及其最佳風能利用原理，通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性，並給出了模擬系統的硬體結構；然後為了實現交流勵磁發電機有功、無功功率獨立調節機理，分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略；針對雙饋發電機轉子能量雙向流動的要求，提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最後為實現從理論到實踐的全面研究，研製出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統，進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗；所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。
  11. According to thermal state similitude model experiment of the langya mountain hydropower station, we adopt different velocity of air ventilation and exclude air proportion of upriver and downriver, this paper contrast the air distribution of the dynamo floor on each method, and educe the best projects of arch crest supply air that adapt to langya mountain hydropower station ’ s dynamo floor : g = 17. 4 10 ~ 4m ~ 3 / h, 22 vents, d = 600mm, the scale of volume 1 : 3, t0 = 16. 9. it ’ s also thought that improved any side of volume can reduce its temperature. when study on the air supply of langya mountain hydropower station ’ s underground dynamo floor by cfd software, it proved that cfd software is correct when compare with model experiment. when arrange the number of 5 kinds of vents, it concluded that the number of vents 14 to 22, it can ’ t change velocity, in 36 to 40 can lead to reduction of velocity. when vent in 14 to 36, the parameter kt doesn ’ t change, when the number is as large as 36, kt reduces

    在此基礎上，模擬了5種風口布置方案和送風量的改變對發電機層溫度場和速度場的影響，獲得了些可供參考的結論:在風量和送風速度不變的條件下，風口個數在（ 14 ~ 22 ）小范圍變化時，工作區平均風速基本不變，大幅度增加風口個數（ 36 ~ 44 ）就會導致工作區平均風速的降低，風口數在14 ~ 36之間對工作區的溫度不均勻系數影響不大，當風口數> 36時，溫度不均勻系數隨著風口數的增多而變小，速度不均勻系數一直隨著風口數的增加而減少;在風口布置和尺寸不變的情況下，送風量變化時，工作區平均溫度隨送風量增大而降低，平均溫度的降低量逐漸趨于減少，能量利用系數先是隨著送風量的增加而增大，后隨送風量增加而減少。
  12. Following the development trend of valve cad, according to the requirements of the chengdu chengfeng valve limited company and based on mdt, this article develops the 3d parametric valve design system. the main work and achievements are as follows : based on the 2d engineering drawing of the several different valves the company provided, the 3d parametric basic drawing - base is set up using mdt which is a 3d design platform, including all the parts drawings and the general assemblage drawings of the valve models ; in accordance with the common steps of the valve design, the parameter editors are designed to edit, import and export the valve parameters and are provided with the function of double synchronization on parameters displaying for convenience in use ; in order to meet demands of users and make the design more accurate, reliable and practical, the assistant formula calculators are developed, which can automatically do all types of structure calculation in the procedure of valve design, and export the calculation manual of valve design ; in order to make designers more rivalries, taking full advantage of internetmntranet technology, the virtual design center is developed, which integrate netmeeting, terminal service and super links, so that the designer can directl y use applications on remote server, communicate with other designers on intranet / internet, share software resources and realize long - distance cooperative design

    根據閥門cad發展趨勢，針對成都乘風閥門有限責任公司閥門設計現狀，本課題基於mdt三維設計平臺開發了閥門三維參數化設計系統，主要完成的工作和成果如下：根據公司提供的幾種不同結構閥門的二維工程圖紙，利用mdt三維設計平臺建立了三維參數化基本圖形庫，其中包括所有零部件和總裝配模型圖及二維工程圖；依照閥門設計的一般步驟設計了參數編輯器，用來對閥門尺寸參數進行編輯、輸入、輸出等，具有參數雙向同步顯示功能，使用十分靈活方便；根據用戶的需求，為了使設計達到精確、可靠、實用的要求，設計開發了輔助計算器，能自動完成閥門設計過程中所需的各種結構計算，並可以輸出閥門設計計算說明書；為了使設計人員更具有競爭力，本系統利用internet intranet技術設計開發了虛擬設計中心子模塊，虛擬設計中心集成了網路會議、終端服務、超級鏈接等功能，可以讓設計師直接使用服務器上的應用程序，與intranet internet上的其他設計專家進行交流、共享軟體資源，實現遠程協同設計。
  13. This paper is based on the cosco vessel investment decision support system project. firstly, according to the shipping enterprise ' s situation and character, a program suitable to the shipping enterprise is given, which is used to help decision - maker analyze the economical effect of the investment and choose correct investment project. secondly, the author extends the use of the evaluation method of single ship investment, simplifys the calculation of revenue and cost, set up the multi - objective synthesis evaluation model of ship investment to evaluate ship investment considering the fleet as a whole, then to make decisions on vessel type jtonnage, number, financing pattern ; finally, the author analyzes the system, and designs the system, mainly including the design of operation database, design of decision support database, the design of models database, system interface, the style of the system, and analyzes the techni cal problems about the system, some functions has been put into use

    以輔助或支持企業的決策者分析投資的經濟效果，選擇投資方向及決策方案，使決策的結果更能滿足航運企業發展的實際需要，作出科學的決策；其次，本文將單船投資決策的技術經濟評價方法進行推廣，在計算npv指標中涉及到的復雜的成本與收入計算問題進行簡化，並利用運籌學的知識，建立船舶投資決策模型，從船隊整體角度對船舶投資進行綜合評價，以達到對船隊中投入船舶種類、船舶噸位、數量與融資方式選擇的多維決策；最後，本文對船舶投資決策支持系統進行了詳細的系統分析，作出整體框架設計，主要包括操作數據庫設計、 dss數據庫設計、模型庫設計和系統介面、系統風格設計，並對系統開發中涉及到的技術問題予以分析，並實現了部分功能。
  14. The research objective is to improve the control system performance through the combination of the advanced control strategy with the meaningful information mined from the history operation database. firstly, a new solution for the control performance enhancement is presented by the reference of the kdd technology. aiming at practical application, a novel boiler load control method, which combines the multiple model adaptive control strategy with the data mining technology, is put forward in this dissertation

    本文第一部分為熱工過程式控制制與數據信息採掘，研究的重點是通過先進控制策略的應用以及運行數據中發掘的有用信息，提高現有典型熱工過程式控制制系統的性能，內容包括：首次提出了借鑒數據信息採掘技術的思路和方法，用於完善現有的熱力系統優化控制方案；在此基礎上結合生產實際，提出了運用多模型自適應策略實施鍋爐負荷控制，並利用關聯規則的數據信息採掘方法，通過對燃料發熱量信息的在線診斷，優化控制器結構，同時實現鍋爐燃燒配風的自適應調整，提高負荷、燃燒控制系統性能。
  15. Chapter four control the stock investment risk, aims at the different types of risks discussed above, has constructed a systematic scheme to control the investment risk effectively. firstly, it utilizes basic analytic approach, the technological analytic approach and index system of the risk measurement to control individual stock ' s unsystematic risks in minimum ; secondly, it uses modern investment theory to dispel the unsystematic risks through combination investment. finally, our country should introduce the stock price index futures and so on in good time, utilize stock price index futures to hedge the stock portfolio and control the systematic risks of the stock portfolio, thus can finally realize the effective systematic controls on stock investment

    第四章「證券投資風險的控制」 ，針對前面討論的不同種類的風險，構造k碩士學位論文物篇夕m引皿』 s 」 l 」 i壓引s一了個有效控制投資風險的系統方案：首先，利用基本分析法、技術分析法和風險度量指標體系，將單個證券的非系統性風險控制在最小；其次，利用現代投資理論，通過組合投資來消除非系統性風險；最後，我國應適時推出股票指數期貨等衍生余融工具，利用股指期貨對證券組合進行套期保值，就能控制證券組合的系統性風險，最終實現對證券投資風險的有效系統控制。
  16. Chapter three the positive research of our country ' s stock market that utilizes the risk measurement index, uses the index and method about measurement of risk which discussed in chapter two, has carried on the positive research to the investment risk of china ' s stock market, and draws two conclusions : first, decentralized investment really can reduce unsystematic risk, dispel over 90 % unsystematic risk when the number of stocks are about 10 ; second, when general trend of events downwards, choose stock portfolio with low value, can reduce investment risk of stock portfolio effectively

    第三章「我國證券市場利用風險度量指標的實證研究」 ，用第二章中討論的有關風險度量的指標和方法，對中國證券市場的投資風險進行了實證研究，並得出兩個結論：一是分散化投資確能降低非系統性風險，當組合股票數為大約10隻時已消除超過90的非系統性風險；二是當股市大勢向下時，選擇值較低的投資組合，可以有效降低證券組合的投資風險。
  17. On the basis above, the paper sets a multiple evaluating index for the thermal environment, and then according to the critical transferring condition of the natural ventilation and the air conditioning in dwellings, the paper offers a " correction factor of energy consumption " to make a scientific and correct evaluation for the energy consumed by those sorts of buildings. further more, the author programmed the subprogram of thermal comfort results by fuzzy evaluation for the natural ventilation room so as to form an entire program, which could make it easy to numerically calculate the indoor thermal environment of residential buildings, and evaluate and analyze its thermal comfort as well features of energy conservation

    西安建築科技大學博士學位論文利用熱環境定量化分析及舒適性評價計算程序，對夏季自然通風條件下建築特性與室內熱環境影響關系進行了定量化計算分析，得出在滿足冬季節約採暖能耗要求的前提下，合理組織自然通風是改善夏季室內熱環境的有效手段；以寒冷地區三個城市為例，對比分析了不同地區夏季自然通風的有效時數；結合實際測試分析，提出全面改善夏季室內熱環境的系統優化設計方法。
  18. We research the stability of the three - factor model by using chow test and research the coefficient stationary by using unit root test, and forecast the coefficient of the model using arma 、 garch model. the results show that the model is instability in the long run, most coefficient is non - stationary, and we can preferably forecast the coefficient by using the arma 、 garch model. in the process of designing strategic investment portfolios and the strategic risk budgeting prevailing in resently which in order to control investment risk, the investors generally structure their portfolios in different industries

    模型回歸系數是測度投資對象系統風險的重要指標，我們利用chow檢驗對證券收益三因素模型結構的穩定性進行了分析研究，用adf檢驗對模型的三個回歸系數的穩定性進行了實證分析，採用arma和garch模型對回歸系數的預測能力進行了研究，結果表明組合三因素模型結構不穩定，但短期比長期結構穩定性要高;大部分組合回歸系數時序穩定性較差，同時arma和garch模型對每個回歸系數時間序列進行預測顯示有較好的預測能力。
  19. Systematically researches the qos requirement in a background of a typical real - time application and then specifies muli - dimension qos pararneter. finally, develops the qos framework. implements the qos enforcement mechanism in the qos framework to support real - time scheduling by chosing linux system and extending its kernel. this dissertation has summarized its most important design style, that is, policy / mechanism separation in process management which being used as the basis of real - time scheduler with unmodified linux applications. the dissertation has developed a named reserve object to share qos between threatls and take advantage of application - specific qos parameter

    選擇linux系統對其進行擴充，總結出linux進程管理最重要的設計風格，是策略與機制相分離，利用該特點，從而不需要修改應用，也能滿足應用的qos需求，因而其成為本文建立支持qos要求的實時調度器的基礎；選擇rm演算法作為擴展目標，引入了「預留」對象這一數據結構，一方面充分利用了應用指定的qos參數，另一方面，便於在進程間共享qos參數，建立了支持qos的新的linux核心。
  20. Based on the analysis of the shortcomings of traditional designs and fan comparability characteristics, the thesis fully studies technical paths of fan parametric design in combination with modern database software techniques, and exploits a complete interactive program system to operate the parametric design for series of centrifugal fans under the support of systematic software of visual basic ( vb ), access and catia. the major research work in the thesis is as follows : 1. ) analyzes and summarizes comparability theory and comparability design of fans ; 2. )

    在分析論述了相似設計理論的基礎上，闡述了風機的相似設計理論；在access數據庫系統的基礎上開發了風機零部件等數據庫；分析了catia軟體系統的功能，探討了利用catia系統在參數化設計方面的優點與可行性；並且基於catia系統下，運用基於事例設計（ cbr ）的原理，建立了風機三維模型事例庫以及風機零部件尺寸參數庫（ excel ） ；利用visualbasic語言，開發了系統的人機界面。
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