operational variable 中文意思是什麼

operational variable 解釋
操作變量
  • operational : adj. 1. （裝置，系統，工藝等）工作的，運轉的。2. 可以使用的，可以工作的，可以運轉的。3. 正在使用的，正在工作的，正在運轉的。4. 軍事行動的，準備在軍事行動中使用的。adv. -ly
  • variable : adj 1 易變的，變化無常的，無定的 （opp constant steady）。2 可變的，能變的；變換的。3 【數學】變...
  1. The optimum results are gotten by simulation of changing the value of some variable such as feed position, theoretical tray. the optimum value can be used to guide industrial design. both isopropyl acetate and butyl acetate as azeotropic agent are contrast to each other according to operational data. besides, liquid - liquid equilibrium still is designed by onself, and its credibility is checked by the experimental data of the system acetic acid water - isopropyl acetate at 24

    對乙酸-水-乙酸異丙酯體系和乙酸-水-乙酸丁酯體系，分別進行了進料板位置、理論板數的優化計算，得到的優化結果可用於指導工業過程的設計；對採用乙酸正丁酯和乙酸異丙酯作夾帶劑時的操作進行了綜合比較。
  2. Optimal periodic control with the lowest operational cost by limiting total substrate discharge mass was studied. through adding new state variable and using supplement functions, the problem with restriction conditions was converted into nonrestriction problem. in addition, the dynamic searching method of optimal step coefficient was developed to modify the conventional gradient method, consequently the calculation problem of the multivariable optimal periodic control was able to be resolved better. it was found that the operational costs of optimal control under various initial states are distinctly different. a new concept of optimal control under optimal initial state was presented. it is pointed out emphatically that to the treatment system without optimal control condition, the suboptimal control with extensive practical value can be realized according to the results of optima control

    著重研究了在限制有機物排放總量時，使其運行費用最低的最優周期控制問題.通過增加新的狀態變量和用補償函數法，將本課題的有約束條件問題化為無約束條件問題，並提出了最優步長參數的動態搜索法來修改傳統的梯度法，從而較完善地解決了多變量最優周期控制的計算問題.研究中還發現了不同初始條件下最優控制所需要的運行費用也大不相同，進而提出了最優初始狀態下最優周期控制的新概念，這對保證出水質量的同時進一步降低污水處理成本來說具有更重要的意義.本文還強調指出：對于尚不具備實現最優控制條件的處理系統，可根據最優控制的研究結果實現具有廣泛實用價值的準最優控制
  3. In essence, an operational definition of a variable describes how or by what means we are going to measure the variable

    本質上，變量的操作性定義是如何或用什麼辦法測量變量的描述。
  4. Just based on the two points mentioned above, a control system of doubly - fed variable speed constant frequency ( vscf ) wind power generator based on 8xc196mc is designed in this paper, which can smoothly transform between the different operational modes from sub - synchronous speed to synchronous speed and to super - synchronous speed

    正是基於上述兩個出發點，本文設計了一臺基於8xc196mc單片機的2 . 8kw變速恆頻雙饋風能發電控制系統。主電路中變流器的設計可使該系統能工作于亞同步速、同步速及超同步速三種運行狀態，並具有能量雙向流動的特點。
  5. The operational characteristics with the different operational parameters, with different terminal cooling load of air conditioning system, with different heat exchange characteristics between underground u - tube pipe loop and soil, etc. have been studied. the operational characteristics of gshps within starting period, normal period and the period of variable operation patterns under different seasonal conditions has also been studied

    研究熱泵機組運行參數變化、空調末端負荷變化和地下埋管換熱器變化時土壤源熱泵系統的運行特性;開展不同季節和不同工況土壤源熱泵的啟動、正常和變工況運行特性的研究。
  6. In this article the up to date new type generator applied in wind electric power generation is introduced all - round and we also analyzed its operational principle when leading a variable velocity constant frequency operation

    本文全面介紹了一種最新應用於風力發電中的新型電機?無刷雙饋電機，並分析了這種新型電機作變速恆頻運行的原理。
  7. The unfavorable factors contain complicated production technology and wayward product quality, etc. first of all, on the basis of analyzing performance index of 3 - layer pe anticorrosion, technological process and operational environment, this paper advances the synthetic control schemes that have constant compound control of temperature and feedback control of speed. considering the production process of the 3 - layer pe, because it is affected by colloidized time of fbe, relatively strong coupling exists between the temperature and speed. through the rational matching and simplifying of the variable, the system realizes uncoupling

    首先在分析三層pe防腐層性能指標、工藝過程及工況條件的基礎上，提出了溫度復合控制和速度反饋控制的綜合控制方案；考慮到三層pe生產過程中，由於受fbe膠化曲線的影響，溫度和速度之間存在較強的耦合，本方案通過合理的變量搭配，實現兩種變量的解耦；文中還依據傳熱理論、中頻感應理論等提出鋼管傳熱過程理論建模的方法，經實際驗證，表現出該方案和建模方法的科學性和實用性。
  8. In the fifth chapter, a new fully differential operational amplifier with voltage and current - mode negative feedback has been proposed, which can stabilize its quiescent operation point, using the characteristic of mos transistors which operate in the triode region acting as active variable resistor, a fully differential fourth - order chebyshev low - pass filter with tunable frequency and bessel low - pass filter with accurate group delay based on r - mosfet - c and operational amplifier has been designed

    第五章：提出了一種新的既具有電壓共模負反饋又同時具有電流共模負反饋的全差分運算放大器電路，能較好地穩定電路的靜態工作點，並應用mos管工作在線性區可作有源可變電阻用的特性設計得到了截止頻率可連續調節的高性能r - mosfet - c 、運放結構切比雪夫（ chebyshev ）和精確群時延值貝塞爾（ bessel ）低通濾波器。
  9. Although the criterion of telecom management network ( tmn ) is invariable, the realization of nms is variable. the various nmss take much maintemance questions to network managers, which is the contrary to operational simpleness that operators ask

    各類通訊產品的各自不同網管系統，給網路管理者帶來很大的維護問題，與電信運營商日益要求的維護方便，操作統一相去甚遠。
  10. Firstly, we introduced usages and developing situations of analog integrated circuits and the different design skills between analog and digital circuirs. this article secondly makes a detailed analysis and expatiation for the operational principle and design technique of regulator. then realize the regulator design in two different ways ( stable rc network and variable rc network ), and accomplish the simulation using mxic 0. 35m process by hspice

    本文首先對包括電壓調節器在內的模擬集成電路的特點、作用和發展概況以及它們與數字集成電路在設計方法上的差異等作了概述，然後在對電壓調節器的工作原理及設計方法進行系統的闡述和分析的基礎上，設計了兩種不同結構形式的可以為存儲器晶元提供工作電源的電壓調節器（採用固定rc補償網路的電壓調節器與採用可變rc補償網路的電壓調節器） ，在mxic0 . 35 m的cmos工藝條件下，用hspice進行了模擬與測試。
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