現值控制 的英文怎麼說

中文拼音 [xiànzhíkòngzhì]
現值控制 英文
present value control
  • 現 : Ⅰ名詞1 （現在; 此刻） present; now; current; existing 2 （現款） cash; ready money Ⅱ副詞（臨時; ...
  • 控 : 動詞1 （告發;控告） accuse; charge 2 （控制） control; dominate 3 （使容器口兒朝下 讓裏面的液體慢...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 現值 : present value; current value; present worth
  • 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
  1. While adopts bang - bang control to realize semi - active control of vehicle suspension system equipped with electrorheologic damper, the coulomb damping force of electrorheologic damper is fixed, as the bang - bang control is two - value control actually. the bang - bang control cannot make full use of performances of the electrorheologic fluids

    由於開關控制是一種二值控制，採用開關控制策略實現對電流變液阻尼器半主動控制懸架系統的控制時，電流變液阻尼器輸出的庫侖阻尼力無法連續變化，不能充分發揮電流變液的特性。
  2. This thesis primarily makes below the work of a few aspects : ( 1 ) the method that measuring and solution of the control point ' s coordinate, calculation of the point, solution of intersection with polygons, and calculation the quantity of ore reserves in a drawing file by computer technology ; ( 2 ) the theory and the method to draw the diagram of the equivalent line by establishing the abnormal triangle net, and ore blending with the diagram of the equivalent degree ' s line ; ( 3 ) the principle and method to automatically divide the ore, and the method to adjust to the quantity of ore and search the ore ' s information ; ( 4 ) adoption the line program to beg to solve the problem to ore blending, and establish the linear programming model and the simplification model with ore blending. ( 5 ) establish the control model with ore degree based on modem control theories

    本論文主要完成了以下幾方面的工作： （ 1 ）利用計算機技術直接在一張現狀圖中，實現了控制點的測量與求解、坐標展點計算、多邊形求交以及爆堆礦巖量的計算； （ 2 ）提出了通過建立非規則三角網的方法來繪制等值線圖的理論和實現方法，通過等品位線圖指導配礦工作； （ 3 ）提出了配礦塊段自動劃分的原理和方法，並在此基礎上實現礦塊礦量調整和礦塊信息查詢； （ 4 ）採用線性規劃的方法求解配礦問題，建立了配礦問題的線性規劃模型和簡化模型； （ 5 ）建立了基於現代控制理論的品位控制模型。
  3. In the last, the modern control theory and simulink in matlab have been integrated together, and it has been applied in active control of the platform structure elastically supported ; a mechanical model and an equation of motion in state space have been established. based on coc, dynamic response of the platform structure elastically supported has been studied under simple harmonic load ; the influence of different values of weight function to the active control efficiency of the structure has also been discussed

    本文還將現代控制理論與matlab的simulink動態模擬軟體包相結合，將其應用於彈性支承平臺結構的主動控制中；建立了彈性支承平臺結構主動控制理論的力學模型和狀態空間內的運動方程；應用經典線性最優控制演算法對彈性支承平臺結構在簡諧荷載作用下的動力響應進行閉環控制；分別從理論和數值計算兩個方面討論了狀態權函數矩陣q和控制權函數矩陣r的不同取值對控制效果的影響。
  4. In this thesis, aim to the beam axis shape be exactitude for design, the internal force of the beam be appeased by design request, the concept of modem cybernetics is applied, at the same time, the effecting parameter has collected. the paper build the ann model in predicting the beam camber an construction and discuss indetail the extraction of inputting nodes information when quoting the fundamental principle of ann model and introducing research process of the improved bnn. according to them, ann is applied in the construction control of prestressed concrete continuous bridge

    本文以大橋成橋線形滿足設計要求和成橋內力控制在設計容許范圍內為目的，運用現代控制理論的思想，引用神經網路基本原理，詳細介紹bp神經網路的研究過程，從而建立預應力混凝土連續梁橋施工預拱度的神經網路模型，並詳細討論了模型的神經網路結點信息的提取，在工程實例的基礎上進行了數值計武漢理工大學碩士學位論文算，數值表明，將神經網路應用於預應力混凝土連續梁橋施工控制，獲得了滿意的結果，在預應力混凝土連續梁橋施工控制技術研究方面，具有方便有效、精度高的優點，具有良好的應用前景。
  5. Finally, the prototype of closed - loop control system of mc has been designed. a seris of experiments have been made, and the results show that the closed - loop control of mc presented here is correct. also, the mc closed - loop systems based on the method can be applied to the variable frequency power supplies

    最後，製作了輸出電壓有效值控制矩陣變換器閉環系統的原理樣機，進行了一系列實驗測試，結果表明採用雙空間矢量策略矩陣變換器實現輸出電壓有效值閉環控制是正確有效的，輸出電壓有效值控制矩陣變換器閉環系統作為變頻電源設計也是切實可行的。
  6. Also, the author ’ s design strategy and creativity has been given in this paper. specifically, it includes : based on the feasibility analysis of the fit selection of control parameters in the aeration process, the aeration process of wastewater treatment of the joint - constructional complete - mixed activated sludge process has been aimed at in this paper. then, the state equations of the aeration process have been proposed in this paper, which is on the base of dissolved oxygen concentration ( do ) and discharge quantity of sludge ( qw ) as control variables, the concentration of bod and sludge as state variables. based on the present study on optimization control of wastewater treatment, the multivariable optimal control model with restriction factor has been presented in the paper with introducing modern control theory and system analysis into the field of activated sludge wastewater treatment,

    具體包括:以完全混合、表面曝氣合建式活性污泥工藝的污水處理曝氣過程為研究對象，在闡述了曝氣過程式控制制參數選取可行性的基礎上，建立了以溶解氧濃度do和活性污泥排放量qw為控制變量，以曝氣池中有機物濃度s和微生物濃度x為狀態變量的活性污泥曝氣過程的基本狀態方程;運用現代控制理論的觀點和污水處理理論，在現有關于污水處理最優控制問題研究的基礎上，建立了有約束條件多變量能耗最小數學模型，該數學模型是以有機物排放總量和狀態變量的末值條件作為約束條件，曝氣過程的能耗最小作為目標泛函;採用增廣拉格朗日乘子法對最優控制問題進行轉化，並對應用極大值原理求解能耗最小這一最優控制問題進行了詳細的解析;引入約束運算元，應用具有控制約束的共軛梯度演算法對能耗最小這一最優控制問題進行求解，並進行模擬實驗驗證。
  7. The study of the text possess usable volue. the prepare of this system has a sense to raise chemical factory ' s level of contemporay control

    本文的研究具有一定使用價值，這套系統的研製對提高化工廠的現代控制水平有一定的意義。
  8. Abstract : by employing the concept of photon flux, the evolution of the phase and photon flux in the eigenmode state in three - wave mixing, and the requirements for the initial phase and photon flux in this state, are studied in the paper. a special state in which there are only exchanges of the photon flux but no phase variations in the three - wave mixing process is investigated. an all - optical switch based on the eigenmode pushpull nonlinear - optical - mirror is presented, and the properties of this all - optical switch are numerically calculated. the numerical results show that the performance stability is extremely good, and the intensity and phase of the output signal beams can be easily realized and controlled

    文摘:利用光子流概念研究了三波混頻中本徵模狀態的相位和光子流的變化，以及該狀態對光波的初始相位和初始光子流的要求，研究了三波混頻中只有光子流的交換卻沒有相位變化的特殊狀態，提出了本徵模狀態推拉式非線性光環鏡的全光開關，並數值計算了這種全光開關的性能，數值結果表明，該光開關的性能穩定性好，並且易於實現和控制輸出信號光的光強及相位
  9. The core of floating threshold value system is the data sampling technology. we will introduce the key chip - tlc5540 and tlc5615 and utilize mcs51 to control the whole system in the article. it examines the original signal from the hgcdte sensor and realizes the control of floating threshold value

    浮動閾值系統的核心是數據採集技術，文中介紹了核心晶元tlc5540和tlc5615 ，利用mcs51單片機控制整個系統，對hgcdte傳感器輸出的原始信號進行檢測，實現了智能浮動閾值控制；同時闡述了性能先進的核心晶元? ? ad603及其應用於agc放大器的特殊性。
  10. The pid control of output voltage feedback is easy to give attention to static and dynamic performance of the control system. output performance of inverter of ups is improved when rms of output voltage feedback is added to pid control system. the hardware and software is designed in order to achieve the digital pid control of inverter of ups

    設計了用於逆變器數字化控制的采樣調理電路，結合tms320f240的硬體資源，通過軟體實現了ups系統的緩起動和市電跟蹤，並改進了逆變器電壓瞬時值控制，通過引入輸出電流中心值檢測，對反饋電壓進行補償，解決了逆變器輸出的偏磁問題。
  11. To point out four essential factors in the strategy which usually are considered to limit enterprise ' s strategic choice space in the beginning, afterwards the article illustrates the enterprise value creation system, namely value shift, value discovery, value creation, value transmission, value control, value creation cornerstone - enterprise ' s resources and structure, capability

    戰略選擇中指出戰略形成通常所考慮的四要素限制了企業的戰略選擇空間，思考的轉換可以拓寬企業的選擇范圍。隨后是對企業價值創造系統的論述，即價值轉移、價值發現、價值創造、價值傳遞、價值控制、價值創造的基石? ?企業的資源及結構、能力。
  12. All the power devices including main switches and auxiliary switches are in soft - switching condition ( zvs or zcs ), while the freewheeling diodes are turned off in zero current condition. besides, the control of resonance between inductance and capacitor can be easily realized without needing of setting the threshold values of the inductance current

    該電路中主開關和輔助開關均滿足zvs或zcs條件，續流二極體也工作在軟關斷方式，並且電感和電容之間的諧振控制不需要設定電感電流閾值，控制邏輯簡單，可實現四象限運行。
  13. A zero - voltage starting method is brought forward which switch the starting from separate exciting to self - exciting successfully ; pll ( phase lock loop ) technology is employed to realize the frequency tracing and constant phase angle control ; igbt driving and protective circuit suitable for parallel inverter is developed, which successfully solve the problem of time compensating and overlapping regulation for the driving signals ; a novel and practical over - voltage protective method for parallel inverters is presented which effectively avoid the possible over - voltage destroy to the inverter. xu haiwen ( power electronics and electric driving ) directed by senior engineer peng yonglong

    提出了一種零壓啟動的他激轉自激方法；通過採用鎖相環技術實現了逆變器工作頻率的自動跟蹤和容性逆變角度的恆值控制；設計了適用於並聯諧振型逆變器的igbt驅動與保護電路，解決了驅動信號的時間補償以及重疊角的可調問題；提出了一種新穎、實用的逆變器過壓保護方法，有效地解決了並聯型諧振逆變器過壓保護這一難題。
  14. The article here introduced the changes of management of case group since 2001, value based management has been using as its internal investment decision and operational management reference. with this case expatiates the thinking of value based management, background and guide for its implementation, the experience of how to combine vbm with current controlling system by case group and also its success on using qad erp system to fulfill calculation and analysis of the value relative parameters of vbm timely, emphasis the important sense of vbm on business management

    本文就case集團公司從2001年管理方式的轉變，將90年代興起的價值導向管理新理念引入公司，將價值指標作為公司內部投資決策及經營管理的參考的實證，介紹case公司引入價值導向管理的背景，闡述其實施價值導向管理的理論依據，解析其如何將價值導向管理與現實控制手段相結合，藉助現代信息手段成功完成價值基礎指標的計算，跟蹤和反饋等實施細則，旨在強調現代企業管理中價值導向管理的重要參考性。
  15. Adopt full chinese large screen with backlight lcd liquid crystal display, and have pagin display function can display instantaneous temperature, pressure, flow, super - compression factor, date and time, instantaneous flow, and accumulate flow and so on. can with serial communication interface

    根據選型功能的不同及現場控制的需要，操作器可有一個報警al1或兩個報警al1 al2輸出，報警值對應于反饋或測量信號的顯示值pv 。
  16. Feed back control base on nonlinear pid with self - adjust parameter and feed forward control base on experience model are employed in the practical application. the realization of this control system and its result are introduced in this paper. because the process of the reaction is complicated, it ' s difficult to model for it

    在對中和過程自動控制演算法的探索中，採用了非線性參數自整定控制和基於模型的前饋控制，本文介紹了這種控制系統的實現和現場控制效果，由於中和控制過程的模型極其難以確定，反應過程變化復雜，因此基於模型的前饋控制無法對ph值和流量值的波動進行有效的補償。
  17. The offshore platform control system with viscoelastic dampers is studied based on modern control theory. the movement equation and state space equation of an offshore platf orm control system with viscoelastic dampers is builded

    基於現代控制理論研究了海洋平臺粘彈性阻尼器控制系統，建立海洋平臺粘彈性阻尼控制系統的運動方程以及相應的狀態空間方程，編制了相應的計算程序，並進行數值模擬計算。
  18. When the molar ratio of titanate, water and ethanol is 1 : 2. 5 : 25, ph value is controlled about 4. 0, calculation temperature as 600, and calcinations time is two hours, the ultrafine product is prepared. the temperature of polymorphic transition between anatase and rutile of dy - doped tio2 is higher than the temperature of transition of pure tio2. the rare earth improves the hot stability of the power

    研究發現，當鈦酸丁脂、水、和乙醇的物質的量的比為1 ： 2 . 5 ： 25時， ph值控制在4 . 0左右，煅燒溫度為600 ，保溫2小時后獲得粒徑非常細小的不同化學計量比組成的氧化鈦和氧化鏑的復合氧化物。
  19. According to the desire of no operator on duty operation mode and dispatching two hydropower plants and two dams by tgcdc, and focusing on how to connect the cscs of gehp to the cscs of tgcdc to meet the technical demand of cascade dispatching, advanced the frame and network configuration of sj - 600 lcu that is appropriate to the functional desire of no operator on duty operation mode, and fully compared with the import lcu on system structure, technology capability and configuration ; and advanced two reforming schemes of connecting the cscs of gehp to the cscs of tgcdc that meet the desire of tgcdc and are appropriate to the desire of no operator on duty operation mode

    根據無人值班和三峽梯調實行兩廠兩壩聯合調度的要求，圍繞著二江電廠計算機監控系統如何接入三峽梯調監控系統滿足梯級調度的技術要求，提出了適應無人值班功能要求的sj - 600型現地控制單元（ lcu ）裝置的構成和網路結構，並就系統結構、技術性能和組態等方面同進口lcu進行了全面比較；提出了兩套滿足梯調要求、適應無人值班要求的二江電廠計算機監控系統接入三峽梯調監控系統的改造方案。
  20. Based on the present control experience, let the boiler operate on a sub - optimal status first, and then seek out the better. in this way, the problem of local minimum can be avoided effectively while optimizing

    根據現有控制經驗，讓鍋爐先進入次優態運行，再進一步尋優，能有效避免最優化中的局部最小值問題。
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