收斂調整 的英文怎麼說

中文拼音 [shōuliǎndiàozhěng]
收斂調整 英文
convergence ustment
  • 收 : Ⅰ動詞1 （把攤開的或分散的事物聚集、合攏） put away; take in 2 （收取） collect 3 （收割） harvest...
  • 斂 : Ⅰ動詞1 （收起; 收住） hold back; keep back 2 （約束） restrain 3 （收集; 徵收） gather; collect; ...
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 整 : Ⅰ形容詞1 （全部在內; 完整） whole; all; complete 2 （整齊） neat; tidy; orderly Ⅱ動詞1 （整理; 整...
  • 收斂 : 1 （減弱或消失） weaken or disappear 2 （約束言行） restrain oneself 3 [數學] convergence; constr...
  • 調整 : adjust; tune up; trim; trimming; variation; modulation; arrangement; debug; rectification; redres...
  1. Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece

    將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義
  2. And raga can steadily adjust and compress the variable changed space. the times of accelerating circle is not many, commonly, the times is under 10 times. even though the problem is very complicated, the times of accelerating circle is less than 50 times

    該方法具有處理復雜優化問題的能力，並且，它調整、壓縮搜索區間的性能也是穩健的，不易早熟收斂，加速循環的次數也不會很高，一般就在10次以下，即便是特別復雜的問題其加速循環次數也在50次以內，所以說raga的計算量很少。
  3. It is demonstrated that the solution for 141 000 order normal equations for a simulated astro - geodetic network ( 47 057 points ) and a space one ( 476 points ) iterates 4 993 times to converge to 1 10 - 18 second, taking 28 min and 47 seconds, on a pii / 233 computer, showing over 40 times more efficiency, as compared with the coefficients unadjusted

    利用模擬的天文大地網（ 47057點）和空間網（ 476點）在pii / 233微機上解算14 . 1萬階方程組共迭代4993次（收斂至1 10 - 18角秒） ，花費機時28分47秒，與未進行系數調整相比，功效提高40多倍。
  4. Compared with the classical bp algorithm, robust adaptive bp algorithm possesses some advantages as following : ( 1 ) increasing the accuracy of the network training by means of using both the relative and absolute residual to adjust the weight values ; ( 2 ) improve the robustness and the network convergence rate through combining with the robust statistic technique by way of judging the values of the samples " relative residual to establish the energy function so that can suppress the effect on network training because of the samples with high noise disturbances ; ( 3 ) prevent entrapping into the local minima area and obtain the global optimal result owing to setting the learning rate to be the function of the errors and the error gradients when network is trained. the learning rate of the weights update change with the error values of the network adaptively so that can easily get rid of the disadvantage of the classical bp algorithm that is liable to entrap into the local minima areas

    與基本bp演算法相比，本文提出的魯棒自適應bp演算法具有以下優點： （ 1 ）與魯棒統計技術相結合，通過訓練樣本相對偏差的大小，確定不同訓練樣本對能量函數的貢獻，來抑制含高噪聲干擾樣本對網路訓練的不良影響，從而增強訓練的魯棒性，提高網路訓練的收斂速度； （ 2 ）採用相對偏差和絕對偏差兩種偏差形式對權值進行調整，提高了網路的訓練精度； （ 3 ）在採用梯度下降演算法對權值進行調整的基礎上，通過將學習速率設為訓練誤差及誤差梯度的特殊函數，使學習速率依賴于網路訓練時誤差瞬時的變化而自適應的改變，從而可以克服基本bp演算法容易陷入局部極小區域的弊端，使訓練過程能夠很快的「跳出」局部極小區域而達到全局最優。
  5. Then an instance of vehicle routing problem ( vrp ) is put forward and solved to confirm their validity

    通過對蟻群演算法的改進和調整，構造出最大最小蟻群演算法，實例驗證該演算法能更快地收斂到全局最優解。
  6. Specifically, according to the w - w five parameters failure theory, the fracture criterion of crack is established, and the state of crack ( open or close ) is judged by the values of the crack strain. combining the two points, the predict - model about the failure of concrete material is established. this predict - model can predict 16 failure forms, and basing the different failure form predicted after crack, the stress - strain relationship matrix of concrete material is adjusted

    具體來講，根據w - w的五參數混凝土破壞理論，建立混凝土的開裂準則，根據開裂應變值來判斷裂縫是張開還是閉合，從而在兩者基礎上建立了裂縫的開裂預測模式，總共有16種開裂模式；裂后根據具體的開裂模式及殘余抗剪能力來調整混凝土的本構關系矩陣，即用等效剛度代替原有剛度，考慮到垂直於裂縫方向的剛度為零，這樣會使裂后的總剛出現病態，為此文中通過引用鬆弛系數來對出現裂縫的單元進行預處理，一方面可解決因過大的舍入誤差導致計算結果的不可信問題，另一方面就是可加速收斂。
  7. That is, all optimal tax paths will converge to the gold rule tax rate ( the tax rate which makes economy lie in the steady and optimal growth state ), by which the government may adjust the tax policies. when the value of some term of tax plan the government has set down is far lower than ( or far higher than ) the gold rule tax rate, it benefits for economic growth to improve ( or decrease ) properly tax

    二、最優稅收路徑具有大道性質，即所有的最優稅收路徑都將收斂到金律稅收率（使經濟處于平穩最優增長狀態的稅收率） ，政府可以根據金律稅收率適度地調整稅收政策，當政府制訂的稅收計劃在某一期的值遠低於（或遠高於）金律稅收率時，此時適當地提高（或降低）稅收有利於經濟增長。
  8. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。
  9. Aimed at conquering the local - searching shortcoming in ga, after establishing fuzzy regulation scale of normal voltage, a socalled on - site regulation expert anowledge based on the plantrstation concept in power systemis implemented to eliminate voltage / reactive power overlimit, to amer decrease investinentand to minimiting active power loss. 2

    在給出合格電壓的模糊調整裕度的基礎上，提出採用基於廠、站概念的就地調整的專家規則進行輔助變異決策，以增強遺傳演算法的局部收斂性；所採用的專家規則主要包括越限校正、進一步減少無功設備投資和降低網損三個方面。
  10. The system identification method is presented for backcalculating the dielectric property and thickness of pavement structures. the method of singular value decomposition is put forward to diagnose the ill - conditioned governing equation and the problem of finding solution to ill - conditioned governing equation is successfully resolved. the parameter adjustment arithmetic with high accuracy, which is based on precise theory and can be converged rapidly, is established

    提出了路面結構層介電特性及其厚度反演分析的系統識別方法，將奇異值分解技術應用於控制方程的病態診斷和求解，有效地解決了控制方程病態時的求解問題，建立了理論嚴謹、收斂快、精度高的模型參數調整演算法，並開發了路面結構層材料介電特性及其厚度反演分析軟體sidthk 。
  11. The new method ameliorates the process of old iterative method and add a new iterative parameter : convergence factor, which can improve the quality of reconstruction image by changing the iterative process and adjusting convergence factor

    該演算法改進已有的迭代過程，加入了新的迭代參數：收斂因子，通過改變迭代進程和調整收斂因子來提高重建圖像的質量。
  12. Combining, switching adaptive control and neural network, a new adaptive control algorithm which can adjust continuously is proposed. the tracking and convergence properties of the closed loop are proved

    摘要將開關自適應控制與神經元網路相結合，提出了一種新的能連續調整的自適應魯棒控制演算法，給出了其閉環系統的跟蹤收斂性證明。
  13. The lyapunov function is used to analyze the convergence of the general learning rule, and it is proved in theory that the general learning rule has the inherent factor which adjusts the coefficient values to gain the minimum error

    通過理論推導，用李雅普諾夫函數分析和驗證通用參數學習規則的學習收斂性，揭示參數學習演算法朝最小誤差方向調整參數的內在因素。
  14. When gun - powder category is different, the sample of training neural network needs change and network parameters 、 need adjustment in the training process according to the requirement of velocity. but the genetic algorithms parameter and training algorithm of neural network will keep the same

    當藥劑品種不同時，需要改變網路的訓練樣本庫對網路進行重新訓練，同時網路參數、應根據對網路收斂的速度要求在訓練過程中進行調整，而遺傳演算法的相關參數和網路的訓練演算法不變。
  15. So the paper combined the fuzzy logic control and recurrent neural network, and the recurrent fuzzy neural network ( rfnn ) controller is introduced into the speedsensorless vector control system. moreover, an online parameter training methodology, which is derived from the lyapunov stability theorem and gradient descent method is proposed to increase the learning capability of the rfnn. the rfnn controller has a better performance than the pi controller system ; the effectiveness of the proposed control scheme is verified by simulation results

    因此論文將模糊控制和具有優越動態性能的遞歸神經網路結合起來，取長補短，提出了一種遞歸模糊神經網路控制方法，利用神經網路來實現模糊推理，可動態的調整隸屬函數的形狀、位置以及神經網路遞歸權值，並對其與pi控制器的交流調速控制系統進行了模擬比較，模擬結果表明與普通的pi控制器相比較，遞歸模糊神經網路控制器有較好的動態性能，控制器的收斂速度快、靜差小，系統在遇到參數發生變化和外部不確定性問題時魯棒性、抗擾動性有明顯的提高。
  16. With self - regulation of antibodies, iga greatly improves the diversity of antibodies, achieves a good dynamic balance between individual diversity and population global convergence, and avoids getting into the local optimal solution

    免疫遺傳演算法通過抗體之間的相互激勵作用大大提高抗體的多樣性，動態調整群體收斂性和種群的多樣性之間的平衡，有良好的全局收斂能力和收斂速度。
  17. Premature convergence is still the prominent problem in genetic algorithms. some excellent individuals or genes are lost due to premature convergence, which causes local optimum. a parameter adaptive genetic algorithm based on the entropy estimating is advanced in this paper

    自適應遺傳演算法的控制參數可以根據個體的適應度大小進行自適應調整，體現了生物進化中「優勝劣汰」的思想，使其收斂速度較基本遺傳演算法有了很大提高。
  18. Fitness scaling was proposed to fight the premature convergence of ga. in fact, the existent fitness scaling does not fulfill the desire. the paper let it be more reasonable

    對適應度尺度變換的研究，人們為了避免早熟收斂，提出了適應度變換的調整方法，但實際上已知的調整方法並不能滿足要求，本文對此進行了更進一步的分析，提出了合理的適應度尺度變換法。
  19. Ann is trained through fast bp algorithm with variable learning rate that mixed with momentum factor and levenberg - marquardt algorithm. these algorithms can improve network ' s convergence speed

    演算法上採用含有動量因子的自適應調整學習率的變學習率演算法或levenberg一marquardi優化方法對網路進行訓練，以提高網路的收斂速度。
  20. It integrated the advantages of physical clock and logical clock so that it can not only represent the time duration but also preserve the partial order of events. a postmortem clock adjustment algorithm has been designed

    結合物理時鐘和邏輯時鐘的優點，設計了一個事後分析的時鐘調整演算法，證明了其正確性和收斂性。
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