efficiency parameter 中文意思是什麼

efficiency parameter 解釋
效率參數
  • efficiency : n. 1. 功效。2. 效率；效能；實力，能力。3. 【物理學】性能。
  • parameter : n. 1. 【數學】參數，變數；參詞；參項。2. 【物理學】參量；（結晶體的）標軸。3. 〈廢語〉【天文學】通徑。vt. -ize 使參數化。
  1. Following the research route of mend with study and development with creation, give the definition of risk and the methods of risk identifying, divide the risk attitude into risk loving, risk neutralism and risk avoiding, point out the importance of enhancing the risk consciousness for lightning hazard, and summarize the mechanisms of lightning hazard the theories and methods of risk assessment for lightning hazard. provide a set of risk assessment parameters for lightning hazard, which includes lightning times n, hazard probability p, hazard loss d, hazard risk r and protection efficiency e, and give the definition, decisive factor, value method and value scope of each parameter. establish a risk assessment model for lightning hazard which includes lightning hazard base module, lightning hazard probability module, lightning hazard loss module, lightning hazard accepted risk module, lightning protection cost module, correcting coefficient module, lightning hazard risk module, and lightning protection class and efficiency module

    遵循借鑒改造和發展創新的研究思路，給出了風險的定義和風險識別的方法，將風險態度分為風險喜好型、風險中庸型和風險逃避型，指出了提高雷電災害風險意識的重要性，總結了雷電災害的作用機制和雷電災害風險評估的理論與方法；提供了包括雷擊次數n 、雷災概率p 、雷災損失d 、雷災風險r和雷電防護級別與防護效率e等5類基本參數的雷電災害風險評估參數體系，並給出了各個參數的定義、參數的決定因素和取值方法以及取值范圍；設計了包括雷電災害基礎模塊、雷電災害概率評估模塊、雷電災害損失評估模塊、雷電災害允許風險評估模塊、雷電防護成本評估模塊、校正系數模塊、雷電災害風險評估模塊、雷電防護級別與效率分析模塊等8個模塊的雷電災害風險評估模型，評估模型以iec61662的評估模型為基本參考，以雷災損失d為中心，把雷災風險劃分為經濟雷災風險r _ e和人身雷災風險r _ l ，並對r _ e和r _ l分開單獨處理。
  2. Then the characteristic and estimation approaches of two important time variant parameter ( tvp ) and state dependent parameter ( sdp ) models are presented and the efficiency of the dbm method is illustrated by three examples based on the analysis of duffing equations, lorenz equations and time - variant equation, in contrast with other methods

    本文首先總結了dbm在常規黑箱辨識演算法中的基本框架和兩類重要模型?時變參數（ timevariantparameter ， tvp ）模型和狀態依存參數（ statedependentparameter ， sdp ）模型的特點及其估計演算法。
  3. In the last two sections, author sets up the non - parameter method models of measuring the production efficiency employing frontier production function under the conditions of input unvaried and output unvaried respectively

    本章后兩節分別建立了兩種路徑下即基於投入和基於產出的前沿生產函數測度生產效率的非參數方法模型。
  4. We make the following assumption for when 2 is positive definite matrix, different estimators about matrix of regression coefficients and inefficiency of least squares estimate have been discussed in many documents. considered 2 is nonnegative definite matrix, this thesis derives best linear unbiased estimate of parameter matrix b and estimable parameter function kbl under the meaning of matrix nonnegative definite and the property of maximum probability of blue is investigated. next, we discuss some necessary and sufficient conditions of the equality of the lse and blue, then we derive the estimation of the deviation bet - ween the least squares and the best linear unbias estimators of the mean matrix, meanwhile a relative efficiency of lse ofb is proposed and its bound is given

    當0時，眾多文獻討論了回歸系數陣的各種估計及lse的有效性，本文考慮了當0的情形，給出了回歸系數陣b及其可估參數函數kbl的在矩陣非負定意義下的最優估計（ blue ） ，研究了它的一個最大概率性質，並且討論了最小二乘估計成為最佳線性無偏估計的充分必要條件，在此基礎上給出了均值矩陣的最小二乘估計與blue的偏差估計，定義了lse相對于blue的一個相對效率，並給出了它的界。
  5. The feature parameter extraction methods of the underwater target are studied which can improve the performance of the underwater acoustic countermeasure equipments. several feature extraction methods such as the scale invariance feature extraction, target pole extraction fourier - mellin transform etc are investigated by computer simulations. the experimental results demonstrated the efficiency of these feature extraction methods in the applications of underwater target recognition

    對多種特徵提取方法如目標相對不變尺度特徵提取、目標極點特徵提取、目標信號的傅里葉?梅林變換特徵提取等進行了模擬研究，結果表明了這些特徵參數提取方法的有效性，具有良好的應用前景。
  6. This method is of high reliability and efficiency. it ' s regarded the one of the best designing method nowadays. to choose the best parameter of frication piece and make sure that the cloth ' s mechanical function is the aim of friction piece ' s parameter priority

    為了圓滿解決上述兩個問題，本文採用廣義既約梯度法對摩擦片參數、變速器傳動比及變速器二軸六檔齒輪進行了優化設計，該演算法可靠性和效率都很高，是目前公認最為優秀的優化方法之一。
  7. Gearbox case is a complicacy detail. now its dimensional form and position parameter is measured ordinary by three - dimensional measuring machine. efficiency is very low

    變速箱殼體是一個形狀復雜的大尺寸零件，目前國內外企業多數使用三坐標測量機對其尺寸和形位參數進行檢測。
  8. 4. based on the sensitivity analysis by a step - perturbation test for several most important parameters, the effective interfacial area is found the most sensitive parameter, which affects the separation efficiency in structured packing column significantly

    4 .基於階躍攝動測試，對非平衡模型主要參數進行了靈敏度分析，結果表明模型中的有效相接觸面積的靈敏度最大。
  9. The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance

    通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。
  10. Applying the theory on hydrodynamics and combining the structure of the pump, the method of calculating the flux is found, using the simulating dual pump which mercury serve as the working medium, by the experiment on the electromagnet used in the dual pump, the optimum method of the coil connection is gained ; by the experiment on the relation the static pressure and the working parameter in different groove structure, a high - efficiency groove structure named as " + " shape are devised ; by comparing the static pressure and flux between single pump and dual pump, the conclusion that the flux of dual pump is about 1. 6 times as much as the flux of single pump is educed, and prove it practical that the dual pump is adopted to increase the flux

    利用水銀為工作介質的雙聯電磁泵，通過對雙聯電磁鐵不同接法的實驗研究，找到最佳激磁線圈接線方法；通過對不同流槽結構的靜壓頭與工作參數關系實驗，研究得出一種高效率的新型流槽結構? ?十字型流槽結構；通過對單泵、雙泵的泵高和流量實驗，得山了在同等工作條件下，雙泵流量大約為單泵的1 . 6倍的結論，從而證明了採用雙聯泵的方法來提高直流電磁泵的方法是切實可行的。
  11. After researching the part thermal equipments and systems include heaters, steam leakage and receiving systems, low pressure drain system etc, and computing the efficiency of the systems, find out the better choice of the imported assemblies than the domestic assemblies in parameter and the disfigurements in design and making. based on the above, point out the measure to progress them. according to the analysis, we can get some measures to increase the economical level of the systems and save more energy

    對局部熱力設備及熱力系統進行分析研究，包括:加熱器設備、漏汽及回收系統、低加疏水系統、主、再熱蒸汽系統以及凝汽器等部位；並計算汽輪機本體高、中、低壓缸效率，藉此著重對汽輪機通流部分進行了剖析，找出國外進口機組動、靜葉柵、葉型的選擇比國產機組先進性以及國產機組在通流部分設計和製造中的諸多缺陷，並且指出了改進的方向，為機組提高熱經濟性、節能降耗奠定了理論基礎。
  12. The vary of the parameter of the steam ). the software provide function of " alert " if some parameters exceed the range of permission, and this may urge the operator to adjust operation condition and put right. meanwhile, this may promise the units under the conditions of optimization, and achieve lower net coal consumption rate of thermal power plant and higher generation efficiency

    同時，這套系統可以在線分析熱力系統的各小指標如主蒸汽參數、抽汽參數和排汽參數在偏離目標值時所引起的煤耗額外增加值，對于偏離目標值超過允許范圍時的參數提出報警，以提醒運行人員調整運行，糾正偏差，使各參數都運行在最佳狀態，從而降低煤耗，提高機組的運行效率。
  13. Based on the propounded control algorithm, combined with the developmental way of thematic project automation, this paper designs a system structure of distributed control system with unique merit, which fit for the automatic and intellectual requests of automation of homemade middle and miniature power station boiler. the parameter self - optimizing fuzzy control system designed by this paper has been put into continuous automatic running in industrial process. the integrated characters of the system has gone beyond the national standards and has achieved ideal control effect as well as economic efficiency

    基於本文提出的控制策略，結合熱工自動化的發展方向，設計出一種適合我國國產中小型電站鍋爐特點的計算機分散式控制系統dcs結構，符合我國國產中小型電站鍋爐運行自動化、智能化的要求，該系統成功地在工業現場中投入全自動連續運行，性能可靠，經濟性好，綜合性能指標達到或優于部頒標準，取得了理想的控制效果和良好的經濟效益。
  14. The apparent density of reticulated positive current collectors and parameter of the plate were decreased, and the utilization efficiency of pam and the cycle life of the batteries were improved

    鍍鉛泡沫碳化矽集流體明顯降低了集流體的表觀密度和陽極板的參數，顯著提高了活性物質的利用率，延長了電池的循環壽命。
  15. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。
  16. The method of the total station transfer leveling parameter applied to the construction of yunyang yangtse river highway bridge shows that in can not only ensure the surveying precision but also improve the work efficiency

    通過雲陽長江大橋施工中的應用表明，在一定的條件下採用全站儀間視法三角高程測量來實現高程的傳遞，不僅能保證測量精度，而且可以提高工作效率。
  17. In the section of experiment, we focused on the research of optical system of optical parameter oscillation, computer controlling data sampling closed - circuit system and technology of computer controlling feed - back. in the section of optics, we used present condition to do the experiments about optical parameter effect and got a series of characteristic curve on power transition efficiency and output power

    本文的實驗部分主要側重於智能化光參量系統的光學部分、計算機控制數據採集閉環系統以及計算機控制反饋技術的研究。在光學部分，本論文利用現有實驗條件進行了參量振蕩器頻率調諧的研究，得到了調諧曲線，並做了輸出參量光的能量轉換效率以及輸出功率的實驗，得到一系列特性曲線。
  18. So it is very important that man realize the structure and parameter of oil reservoir clearly. it can heighten production efficiency and save a lot of money. in this thesis, some scientific research item of daqing and liaohe oil field are used as the background

    研究清晰地再現地下油藏構造形態和準確預測油藏參數的方法，對石油的生產有重大的實際意義，可以提高生產效益，為國家節約巨額的資金。
  19. Electron gun is the foremost parts of twt, it can produce electron beam with a certain shape and current, in order to guarantee the reliability and security of work, it ’ s design have to meet to the requirement not only of electric parameter, but also all kinds of subsidiary characteristics such as filament pyrogenation efficiency, warm up time, shape size, pole space capacitance and the ability to be able to bear the press and all kinds of rigorous run conditions such as high temperature, high humidity, low air pressure, strong vibration and great strike

    由於行波管的大功率和高頻率等特性，目前還沒有任何其他的器件可以代替。行波管是應用高頻電磁場與電子注進行互作用的機理進行工作的，而電子槍是行波管中產生電子注並使它成型的基本部件，電子槍的結構設計決定了槍體自身必須具有良好的抗振可靠性，否則結構發生共振或振動位移過量，就會導致行波管的失效。因此對行波管電子槍的研究具有非常重要的意義。
  20. 4. the inspection standard has been appraised. the air stagnation parameter and water stagnation parameter are enough to evaluate the quality of evacuated solar tube and the heat loss co - efficiency can be cancelled

    用空曬性能參數和悶曬性能參數來評價太陽能真空集熱管的好壞即可，取消平均熱損系數指標，空曬性能參數反映高溫能力，悶曬性能參數反映正常工作時的升溫能力。
分享友人
分享到 Line

分享到臉書