differential operation 中文意思是什麼

differential operation 解釋
差示操作
  • differential : adj 1 差別的，區別的；特定的。2 【數學】微分的。3 【物、機】差動的，差速的，差示的。n 1 （鐵路不...
  • operation : n 1 動作，行動，活動；業務，工作；作用。2 效果，效力；有效范圍，有效期間。4 【數學】運算；【醫學...
  1. When calculous was at it ' s initial stage, newton computed the integral by contradictorily operation of differential, leibniz used the " tiny elements " method

    在微積分的初創時期， newton通過微分法的逆運算，即「反流數術』來解決求積問題，而leibniz則採用「微元法』 。
  2. By using knife edge as object, and cmos sensor as device for image analyzing, we get edge spread function from the image and use differential operation and fft to obtain modulation transfer function of the lens, then its image quality is known

    以刀口作為目標物，以cmos作為圖像分析器件，從圖像中獲取刀口函數，經微分和fft運算，得到成像鏡頭的mtf （調制傳遞函數） ，從而得知其成像品質。
  3. Abstract : in practice, some differential bus protection had miss operation because of its unpractical criterion. it is analyzed and presented in this paper based on this situation

    文摘:在工作中發現某型母差保護裝置因判據不能滿足而在某些情況下可能拒動，並對此情況作一分析介紹。
  4. At present, differential protection is often used as the main protection for traction transformers. however, the existing of certain factors, such as magnetizing inrush, over - excitation, ct saturation and mismatching of ct ratio, will result in that it is hard to distinguish state current and fault current, and differential protection misoperation or maloperation, then secure operation of electric railways system will be threatened

    目前，牽引變壓器通常採用差動保護作為主保護，但是在某些因數的影響下差動保護並不能準確的區分牽引變壓器內部故障或非內部故障，如故障電流與變壓器處于勵磁涌流、過勵磁， ct飽和及ct變比不匹配等情況下的狀態電流就很難準確的區分，可能造成保護誤動或拒動，從而危及整個鐵道電氣化系統的安全運行。
  5. The diagnosis is made histopathologically, and the differential diagnosis between benign and malignant ovarian tumors cannot be made until operation

    診斷依靠組織病理，良惡性卵巢腫瘤的鑒別診斷只有通過手術才能確定。
  6. The thesis is focus on the research of the optical - fiber differential current protection that can adapt to the rapidly changing power grid. it mainly contains the following four parts : ( 1 ) theoretical analysis of some operation criterions and some factors that influence the operation of the differential protection. ( 2 ) simulation of a 500kv transmission line using emtp software

    其主要內容是： （ 1 ）對影響差動保護靈敏度的各種因素和不同的電流差動保護判據進行了理論分析； （ 2 ）用emtp模擬軟體對差動判據進行了數據模擬，並用matlab對輸出結果進行了詳細的可視化分析； （ 3 ）分析、比較了國內外縱差保護的數據采樣同步方法； （ 4 ）對判據進行了實際的編程實現和動模模擬。
  7. Therefore, the commerce planning of the pearl river delta must be perfected as soon as possible, the industrial restructuring and resource integrate of the pearl river delta must be accelerated, it is indisputable that the commerce in the delta will not got a all - round development until the commerce takes effect differential operation, malposition management, and reduces blindfold competition

    因此，盡快完善珠江三角洲商業規劃，加快珠江三角洲產業結構調整和資源整合，實行差異化經營、錯位經營，減少盲目競爭，才是實現珠江三角洲商業全面發展的必由之路。
  8. For the requirement of more negative differential resistance ( ndr ) routes, three split quantized energies are formed in the four - period inp / ingaas superlattice structure with relatively thin ingaas quantum wells under ideal flat - band condition, and high - field domain in the superlattice is formed under sufficiently large operation bias

    為獲得?多軌跡的負微分電阻，本研究組件使用?相當薄之砷化銦鎵?子井，可使四周期磷化銦/砷化銦鎵超晶格結構在平帶情況下形成三個分?的?子化能階，且於足夠大的操作偏壓下在該超晶格結構中形成?高場區域。
  9. The main contributions of this dissertation are listed as the followings : l ) deducing and proving the " three in one " theory of natural monopoly, that is, from the angles of economies of scale, economies of scope and economies of network, giving an explanation of natural monopoly ; 2 ) putting forward the concept of " strict superadditivity " and proving that total value function and total revenue function of network economy have strict superadditivity ; 3 ) summarizing the emerging characteristics in the market definition of natural monopoly, that is, in the monopoly industry, " market " tends to be more and more smaller than " industry " ; 4 ) expounding that the objective patterns of regulatory reforms of the railway industry in china are explicit regulation with partly characteristics of implicit regulation ; 5 ) proving the idea that the structural reforms of the railway industry in china should be hierarchical ; 6 ) demonstrating the theoretical bases for whether infrastructure management should be separated from transpo rt operation ; 7 ) expounding and proving that the interior of the railway industry in china should implement the differential property rights reform pattern

    本文的研究特點在於： （ 1 ）在規模經濟、范圍經濟的基礎上進一步推導並證明了網路經濟與自然壟斷的關系，即自然壟斷可以從規模經濟、范圍經濟、網路經濟三個角度來解釋論述； （ 2 ）明確提出了一個與鮑莫爾、潘澤與威利格等人提出的「成本劣加性」相類似的概念? ?價值優加性，並證明了網路經濟的總價值函數和總收益函數具有嚴格優加性； （ 3 ）概括了自然壟斷市場界定中所出現的新特徵，即在壟斷產業中， 「市場」正越來越小於「產業」 ； （ 4 ）進一步論證了中國鐵路產業規制創新的目標模式是兼有部分內生規制特點的外生規制； （ 5 ）在中國鐵路產業的結構改革中應體現分層次的思想； （ 6 ）明確論述了內容提要鐵路路網公司等自然壟斷環節是否分割的理論基礎; （ 7 ）提出並進一步證明了中國鐵路產業內部應實行差異化的產權改革模式。
  10. Based on the optimal operation problem of flood control for multi - reservoir such as jiangya, zaoshi and yichongqiao reservoirs on the lishui river, a hierarchical model for optimal flood dispatching of multi - reservoir system, which includes a flood routing model and a discrete differential dynamic program model for the optimal flood dispatching of reservoir sub - system, is established : then a new decomposition - coordination algorithm is put forward

    摘要以澧水流域中上游的江埡、皂市及宜沖橋三庫聯合防洪優化調度問題為背景，建立了河道洪水演進方程與離散微分動態規劃相結合的水庫群防洪優化調度模型，提出了一種離散微分動態規劃與馬氏京根洪水演進相結合的大系統分解協調演算法。
  11. Become a kind of new electronics circuit - current - mode circuit. it is replacing the traditional design method of the voltage - mode in the high frequency high - speed signal processing realm 。 this thesis mainly discussed the modified second - generation current conveyors based on the current - mode kinds of new cuicuit components, they are stronger modified standard current - mode parts in fuctions on this foundation. mainly including the modified differential difference current conveyor ( mddccii ) 、 the fully balanced second generation current conveyor ( fbccii ) 、 ( full balances ) four - terminal floating nullor ( fbftfn ) and the current differencing buffered amplifier ( cdba ), they are all function very strong standard current - mode parts, they all can provide some circuit functions of better than general operation amplifier, because they have the voltage importation and the current importation, therefore use it since can carry out the voltage - mode signal processing circuit expediently, can also carry out the current - mode signal processing circuit expediently, and have to increase the benefit bandwidth to accumulate more widely than the voltage - mode, but have their advantages more according to the current - mode filter of the modified current conveyor, because it constitutes in brief, the filter wave function is stronger and they are better than in general use operation amplifier of many advantages, be easy to composing for example 、 high speed 、 frequency bandwidth 、 the power supply voltage requests low 、 consume small, the impedance is different from etc. advantages, otherwise they have biggish dynamic range, and flexible circuit synthesize, so they are the best active parts

    從第二代電流傳輸器ccii入手，重點研究了以下幾種改進型的第二代電流傳輸器:改進的差動差分電流傳輸器mddccii 、全平衡第二代電流傳輸器fbccii 、多輸出四端浮地零器ftfn 、全平衡四端浮地零器fbftfn 、電流差分緩沖放大器cdba的電路結構及其模型。然後在此基礎上系統地研究了基於這幾種改進型的第二代電流傳輸器的濾波器的設計方法，主要方法和結果如下:利用mddccii設計了差分式連續時間電流模式低通、帶通濾波器;電流模式跳耦結構考爾低通濾波器;利用fbccii設計了帶通二階節濾波器及電流模式雙二階通用濾波器;設計了基於多輸出端ftfn的電流模式二階通用濾波器電路;通過數字化開關選擇的基於fbftfn的電流模式通用濾波器;設計了基於最少個數電流緩沖放大器（兩個cdba ）的多功能通用電流模式濾波器及其在非理想因素情況下分析。設計濾波器的主要方法是採用級聯設計、運算模擬（信號流圖法）和反饋設計（跳耦法） 。
  12. Such applications include those where the valve ( 1 ) is too large or has too high a differential shut - off pressure for manual operation ; ( 2 ) is not accessible for manual operation ; ( 3 ) is part of a system requiring simultaneous operation of many valves ; ( 4 ) must be triggered from a remote location, as is often essential for emergency shut - off in hazardous areas

    這種裝置主要應用在下列閥門上： （ 1 ）太大或具有很高的關閉壓差，以至於人工無法關閉； （ 2 ）操作人員無法接近操作； （ 3 ）作為系統的一部分，要求許多閥門同步操作； （ 4 ）必須進行遠程控制，對于危險區域的緊急關閉常常是不可缺少的。
  13. The filtered solids are systematically removed from the filter during the back - flushing operation. back - flushing is actuated as a function of the differential pressure or a pre - set time, depending on the degree of contamination of the needle - slot candles

    過濾機的清洗排污過程是在設備運行過程中自動進行的，反沖時逐一清洗每個濾芯，其它濾芯仍在連續過濾，可保證濾液的連續供給。
  14. And the law gained from differential calculus is coincident well with the calculated result. grounded upon the research on the sootblower operation, the effect on all kinds of boiler performance of ash fouling on heating surface is analyzed roundly. and the sootblowing income is divided into five categories

    在現有吹灰器研究和運行水平的基礎上，全面分析電站鍋爐各部位受熱麵灰污對鍋爐各方面性能的影響，將電站鍋爐吹灰的收益和成本各歸納為五類，得出不同受熱面吹灰的收益和成本不盡相同的結論。
  15. Abstract : taking an on - line dynamic measurement system as an example, the influence of the distributive position of the filtering network on the error of dynamic measurement is analyzed. the following design criterion is proposed : in differential dynamic measurement system the filtering network must be located behind the add or minus operation circuit

    文摘:通過一個動態在線測量系統實例，分析濾波網路分佈位置對系統動態測量誤差的影響，並提出對於差動式動態測量系統，濾波網路必須位於和差運算電路之後的設計原則。
  16. Differential protection linking piece : the operator should set this linking piece on the “ on ” position under normal operation, then the differential protection is normally put into service ; as the linking piece is set on the “ off ” position, the differential protection is out of service

    差動保護壓板：正常運行時壓板應置於「投入」位置，差動保護正常投入運行；壓板置於「退出」時差動保護功能退出運行。
  17. The system is on the basis of fourier optics. by using knife edge as object, cmos sensor as device for image reception, we get edge spread function from the image histogram and use differential operation and fft to achieve mtf of the lens, then its image quality is obtained

    本系統以傅立葉光學為依據，以刀口為目標物，以cmos為圖像接收器件，採用獨特的演算法，從刀口圖像的灰度直方圖中獲得其刀口邊緣函數，經微分和fft運算，得到待測鏡頭的mtf ，從而得知其成像品質。
  18. The jacobian matrix of the 6 - prrs parallel robot has been computed by two methods. one is differential coefficient based on symbol operation, the other is vector construction

    對於6 - prrs並聯機器人的雅可比矩陣，分別使用了基於符號運算的微分構造法和矢量構造法進行求解，並驗證了兩種方法的正確性。
  19. In this article, the author study the short - term optimization dispatching of cascaded hydropower in order to get a practicable mathematical model and arithmetic. basing on deep analysis and generalization of yilihe cascaded reservoir, the author set up a short - term dispatching mathematical model and an inner - plant economical operation model to simulate the real operation process. dynamic programming method ( dp ) is effective to solve the several problem and discrete differential dp ( dddp ) is a reduce dimension tool

    本文緊密結合雲南省境內的以禮河梯級水庫的工程實際，在對其進行深入分析和概化的基礎上，建立了反映實際問題特點的梯級電站短期調度模型和廠內經濟運行模型，動態規劃方法以其擅長求解多階段決策過程問題而被本文選為優化工具，由於dddp的降維效果顯著，從而使動態規劃在本研究模型中得以運用。
  20. Differential operation ( one suction and two discharges per cycle ) keeps the discharge fluctuations very low

    差動式操作令輸出的波動很小，輸出壓力平衡。
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