自具電荷 的英文怎麼說

中文拼音 [zìjùdiànhé]
自具電荷 英文
self charge
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 荷 : 荷名詞（蓮） lotus
  1. There are two relatively independent sub - blocks in the system : self - adjusting charge pump and parallel led current control driver

    整個電路包括兩個相對獨立的模塊:具有自適應調整功能的電荷泵電路和並聯led電流控制電路。
  2. We fhd that the energies have the following important properties : ( 1 ) the energies are positive and monoton - ically decrease to their arnowitt - deser - misner ( adm ) masses at spatial infinity ; ( 2 ) the energies have the correct newtionial limiting, and include the binding energies from the gravitation ^ electrostatic charge and dilaton charge, respectively ; ( 3 ) martinez ' s conjecture is valid for such black holes

    結果表明該能量具有如下幾個重要特徵： （ 1 ）該能量是正定的，且隨徑向坐標單調遞減，在無窮遠處為黑洞的adm質量； （ 2 ）該能量具有正確的牛頓極限，並包含有分別來自於引力、靜電荷和伸縮子荷的束縛能； （ 3 ） martinez猜測對這些黑洞依舊成立。
  3. Many protective and monitoring functions are integrated in the system, such as earth - fault monitoring, short circuit protection, over - load protection, phase symm etry and phase loss monitoring, over voltage protection, under voltage protection, motor thermal monitoring and so on

    該系統能自動轉換控制方式，具有漏電、短路、過載、斷相、欠壓、過壓等保護功能，並且能通過漢字顯示終端顯示各路負荷的工作狀態和工作參數。
  4. Secondly, their aims are made the investment of substations, feeders or running cost of electric power system minimum. but they do n ' t take into account of land utilization, street accessibility of right of way, etc., but demands of electric power system. generally, a straight line distance, namely, euclid distance, was used for calculating the distance between a load point and a substation, which is a straight forward but non - practical way for most planning techniques

    其次受研究工具的限制，這些模型以工程投資、運行費用等最小為目標，僅能考慮導線載流量、電壓降等電力系統技術約束條件，簡化略去了用地限制、街道可達性等重要的自然約束條件，且求解這些模型的前奏是計算負荷點到變電所的歐幾里得距離（直線距離） ，簡便但不切合實際（這一點在城市電網規劃中尤其重要） ，因此較難給出技術上可行的最優解。
  5. For example, one of us ( umstadter ) has demonstrated electron beams of a few million electron - volts whose “ brightness ” ( in essence, the concentration of particles in the beam ) exceeds that of beams made by conventional accelerators, mainly because the charges bunched in one pulse of the beam have less time to blow it apart by its own electrostatic forces

    例如烏姆斯塔特（本文作者之一）便曾展示過，具有數百萬電子伏特的電子線束之亮度（基本上，即是線束內的粒子濃度）超過了傳統加速器產生的線束，因為脈沖內束在一起的電荷根本沒時間以自身的靜電把別人擠開。
  6. The pt secondary loop voltage drop is a changing amount and has the characteristics of indirection and certain randomness. the second, according to the cause of pt secondary loop voltage drop, the different methods to reduce the pt secondary loop voltage drop were analyzed and the conclusions are draw as below : 1. changing bigger section wire and maintaining the connector plugs regularly can reduce the pt secondary loop voltage drop effectively, but ca n ' t guarantee which meets the relevant rules

    首先，通過對電壓互感器二次壓降的形成機理進行分析，得出以下關於二次壓降的相關結論： 1 、電壓互感器二次壓降等於二次迴路阻抗和迴路電流的乘積； 2 、電壓互感器二次迴路阻抗分為元器件自身阻抗和接觸阻抗兩部分，且接觸阻抗佔主要部分，從而使得電壓互感器二次迴路阻抗具有動態特性，而且具有一定的隨機性； 3 、電壓互感器二次迴路電流與二次負荷和迴路阻抗大小相關，因而二次迴路電流也是變化的； 4 、電壓互感器二次壓降是一個變化量，且具有單向性和一定的隨機性。
  7. Based on the discussions of the conventional and recent methods of short term load forecasting such as time series, multiple regression approaches and artificial intelligence technologies, this paper presents a hybrid short term forecasting model which combines the artificial neural network ( ann ) and genetic algorithm ( ga ). in order to improve the convergence speed and precision of the back - propagation ( bp ), a new improved algorithm - the adapted learning algorithm based on quasi - newton method is given

    本文首先分析比較了電力系統短期負荷預測的傳統方法時間序列法和回歸方法以及最近的專家系統和神經網路技術的優點和不足，然後針對人工神經網路bp演算法的不足對其進行了改進，採用了基於擬牛頓的自適應演算法，它提高了網路學習效率，具有較快的收斂速度和較高的精度。接著提出了改進的遺傳演算法來改善神經網路的局部收斂性。
  8. Depending on how the ground surface is denuded, the feature of the current crustal stress field and rock stress environment can be calculated analyzing the result in this paper : by analyzing the recovering feature of the elastic deformation of the rockmass in unload - stage under various pressures, it has been found there is close relationship between the recovering degree of the elastic deformation of the rockmass and the unloading degree of the pressure the direction of the major principal stress in the crustal stress field is not consistent with the direction of the crushing stress regional tectonics borne during the last tectonic movement. the evolving degree of the regional geomorphology evidently affects the current crustal stress field, which changes from the self - weight stress field to the horizontal stress field, with the changing of the eroding degree of the regional geomorphology ranging from valley area to hilly country to flat country. in valley area, where there is two stress belts, the bankslope s tress belt and the self - weight stress belt within the mountain. the direction of the major principal stress is nearly parallel to the ground surface and inclines towards the valley in the bankslope stress belt. it is nearly vertical in the self - weight stress belt

    通過本文的研究成果，根據區域性地貌的演化特徵，我們可以大致地對現今地應力場進行判斷：在分級卸荷條件下，巖體中彈性變形的恢復具有明顯的規律性，這種規律對于研究地應力場的演變是有幫助的；地應力場中最大主應力方向與區域構造形跡在最近的構造運動中所受區域性擠壓應力的方向無明顯的對應性；區域性地貌形態的演化程度對現今地應力場的特徵具明顯的影響，隨著區域性地貌侵蝕程度由峽谷區、丘陵區、平原區的變化，現今地應力場特徵由自重應力場、水平應力場為主含少量自重應力場特徵向水平應力場的規律變化；在峽谷區，山體中具有兩個應力帶：自重應力帶和卸荷應力帶，最大主應力方向在卸荷應力帶中近平行於坡面並傾向于河谷、在自重應力帶中近於直立；根據原始地面遭剝蝕的程度，可以大致地估算最大主應力和中間主應力的量值和方向；在丘陵區和平原區，最大主應力的方向近於水平，並與附近區域性侵蝕盆地和河流的展布方向基本平行，根據原始地面遭剝蝕的程度，可以大致估算其最大主應力的量值；根據區域性地貌形態的特徵來分析工程區的現今地應力場特徵，並進而大致了解巖石的應力環境，這種分析方法得出的結論與許多實際的地應力測試成果基本一致，對于大型水電工程地下廠房和壓力隧洞的設計是有所幫助的。
  9. In the deregulated power market ， the power grid operator is facing many uncertainty and risks risk concept ， risk analysis approach and risk management are introduced in chapter ii ， the maj or risks of grid operators is analyzed and evaluated in details based on the real situation and data of yueyang city, hunan province ， the economic risk resulting from the uncertainty of load prediction of whole system ， generation capacity and parallel quantity of the large enterprises self - owned power plant are analyzed meanwhile ， the increase of large enterprises self - owned power plant may cause economic and security risks considering different risk ， the qualitmive and quantitative approaches are respectively adopted the direct and indirect congestion risks are evaluated based on probabilistic theory and decision theory the retail pricing and trade modes are major areas embracing risks as well chapter iii divides the risks in internal and external ones based on the characteristics of risk and put forward the layered risk management approach

    詳細分析和論述了電網經營企業面臨的各種風險。基於湖南省岳陽地區電力市場的實際情況和多年歷史數據，採用定性分析和定量計算的手段具體分析了負荷、自備電廠發電量和上網電量預測不確定性以及自備電廠的大量增加給電網企業帶來的經濟性風險和安全性風險。無論是長期還是短期，阻塞不僅會對電網造成直接風險，還可能造成間接風險。
  10. There are many plants that have the character of time - varying, large delay, large inertia in the process of production of modern power station such as the superheated steam temperature, the reheated steam temperature, the water treatment of boiler and the load regulation. some of them have the strong character of nonlinear and some of them are multivariable coupling systems it is very difficult to obtain good effect of control by conventional pid control. it is necessary to set up the mathematics models of controlled plants if applying control means of modern control theory such as self - adaptive control, optimal control ， decoupling control and predictive control. and these control systems have large calculation and bad character of real time in general. these disadvantages make them be not able to meet the need of real production process and limit the application of them in modern power station. now the generator units are developing towards large capacity and high parameters. many new kinds of generating electricity means are coming into being. the characers of production units of power station become more and more complex but the demand to quality of control becomes more and more strict. the new control means are in bad need to control them effectively

    現代電站的生產過程中存在過熱汽溫、再熱汽溫、鍋爐水處理、負荷調節等許多大遲延、大滯后、特性時變的對象，它們中有些還是具有強非線性特性的對象或多變量耦合系統，採用常規的pid控制手段很難取得良好的控制效果。若應用現代控制理論中的自適應控制、最優控制、解耦控制、預測控制等控制手段，則需要建立被控對象的數學模型，而且往往控制系統的計算量大、實時性差。這些缺點使其很難滿足實際生產過程的需要從而極大地限制了其在現代電站中的應用。
  11. Because the harmonics in tangyin substation are primarily from electric traction loads, this paper gives the structures of several main locomotive models and general harmonics they produce. the harmonics produced by electric locomotive have a characteristic that their range and phase are both dispersive. this paper also analyzes the impedance - matching balance transformer ' s structure and harmonics injected into the power system at its primary side, and sums up the characteristics of the harmonics from electric traction loads in the tangyin traction substation

    鑒于湯陰變電站的諧波主要來自電力牽引負荷，本文列舉了電力機車幾種主要車型的結構以及它們產生諧波的概況，得出了電力機車的各次諧波電流幅值和相角具有較大分散性的特點。針對湯陰牽引變電站的牽引變壓器，分析了阻抗匹配平衡變壓器的結構及其高壓側注入電網的諧波，推導了有關計算公式。通過理論分析並結合湯牽線的實測諧波數據，歸納了電力牽引負荷注入湯陰變電站的諧波的特點。
  12. From the mid - eighties on, the nfi formerly the forensic science laboratory has been involved in the field of digital evidence. the department of digital technology consists of 25 staff members, most of which are university level engineers in it and electronics

    荷蘭鑒證學會（前稱法證科學實驗室）自八十年代中期開始從事有關數碼證據的工作，其數碼科技部共有二十五名工作人員，其中大部份是具備大學程度的資訊科技及電子工程師。
  13. We only need consider electron as carrier of electric charge in former electron transporting process, but in gmr effect, electron not only is the carrier of electric charge, but also has spin

    在以往的電子輸運過程中，人們僅需要考慮電子作為電荷的載體，但在巨磁電阻效應中，電子不僅是電荷的載體，而且具有自旋。
  14. An auto - adjustable charge pump embodied in a white led driver has been taped - out successfully using a 0. 5 m cmos process. it can provide more than 80ma output current in the wide input voltage range from 2. 7v to 5. 5v

    此電荷泵晶元採用0 . 5 mcmos工藝;輸入電壓范圍為2 . 7 5 . 5v ;可以提供大於80ma的輸出電流，同時驅動四顆白光led ;並且此晶元具有根據輸入電壓自動選擇工作模式的功能。
  15. Charge pump operation principle and a 50ma switched - capacitor automatic step - up / step - down charge pump converter with wide input supply voltage and multi output versions, which uses 0. 5 m standard cmos technology, are presented in this paper

    在對電荷泵原理研究的基礎上，論文採用0 . 5 m標準cmos工藝設計了一種具有寬輸入電壓范圍和多輸出規格的50ma自動升/降壓開關電容電荷泵dc / dc轉換器。
  16. Many protective and monitoring functions are integrated in the system, such as pilot circuit monitoring, earth - fault monitoring, short circuit protection, over - load protection, phase symmetry and phase loss monitoring, over voltage protection, under voltage protection, motor thermal monitoring and so on. all measuring results, fault states, fault parameters and error messages of six motors controlled by the sys tem are sent to the liquid crystal display module via the existing serial data connection

    該系統能自動轉換控制方式，具有漏電、短路、過載、斷相、欠壓、過壓、過熱等保護功能，通過觸摸式液晶顯示系統，不僅能顯示各路負荷的工作狀態和工作參數，而且能記憶其故障狀態和故障參數。
  17. Many factors discussed in the article like the static force between the drugs and melamine formaldehyde / poly ( styrene sulfonate sodium salt ) ( mf / pss ) complex inside the capsules, the concentration balance between outside and inside the capsules, and the drugs " solubility will affect the deposition and release behaviors

    這是因為不同環境下，小分子藥物和具有自發沉積性質的膠囊內的三聚氰胺甲醛聚苯乙烯磺酸鹽（ mf pss ）復合物之間的電荷作用，膠囊內外藥物濃度的平衡和藥物自身溶解度等多重因素造成。
  18. It accurately measures resistors, capacitors, inductors, diodes, transistors, and ic clamping diodes on the assembly board

    針對電路板殘留電荷及製程中的靜電，具有自動放電保護功能
  19. For the sake of saving energy, we increase capacity of the generate electricity at one time, and enhance the demand - side management ( dsm ) is no time to delay, the terminal of distribute and monitor in power consumption field is a important department of dsm, it is an emergent problem that electricity supply department should solve, it has been continuously developed with the development of electric power system management automation

    用電現場負荷監控終端是電力需求側管理的一個重要組成部分，是目前供電部門迫切需要解決的一個問題，它隨著電力系統管理的自動化而不斷發展起來。隨著電力系統的自動化管理技術的發展，對負荷監控終端的研究具有重要的現實意義，它是計算機技術和現代管理技術相結合的產物，也是國內外電力管理的重要手段。
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