收斂段 的英文怎麼說

中文拼音 [shōuliǎnduàn]
收斂段 英文
constrictor
  • 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; ...
  • 段 : Ⅰ量詞（部分） section; segment; part; paragraph; passage Ⅱ名詞（姓氏） a surname
  • 收斂 : 1 （減弱或消失） weaken or disappear 2 （約束言行） restrain oneself 3 [數學] convergence; constr...
  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. Introduction of prepotency operator in the initialize population step and the improved mutation operator accelerate the convergence process, and the introduction of new operator in forming new population step avoid converging in local optimum, and promote the ability of global convergence

    演算法在初始化種群階段引入了「優生」運算元，以及改進的變異操作使演算法的收斂速度大大提高；在形成新種群階段引入新的運算元避免了局部早熟，提高了全局收斂能力。
  3. This article puts forward a solution named divide - assemble by deducing the size of bp neural network to overcome entering the local best point, the dividing process is that a big bp neural network is divided into several small bp neural networks, every small bp neural network can study alone, after all small bp neural networks finish their study, we can assemble all these small bp neural networks into the quondam big bp neural networks ; on the basis of divide - assemble solution, this article discusses the preprocessing of input species and how to deduce the size of bp neural network further to make it easy to overcome entering the local best point ; for the study of every small bp neural network, this article adopts a solution named gdr - ga algorithm, which includes two algorithms. gdr ? a algorithm makes the merits of the two algorithms makeup each other to increase searching speed. finally, this article discusses the processing of atm band - width distribution dynamically

    本文從bp網的結構出發，以減小bp神經網路的規模為手段來克服陷入局部極小點，提出了bp神經網路的拆分組裝方法，即將一個大的bp網有機地拆分為幾個小的子bp網，每個子網的權值單獨訓練，訓練好以後，再將每個子網的單元和權值有機地組裝成原先的bp網，從理論和實驗上證明了該方法在解決局部極小值這一問題時是有效的；在拆分組裝方法基礎上，本文詳細闡述了輸入樣本的預處理過程，更進一步地減小了bp網路的規模，使子網的學習更加容易了；對于子網的學習，本文採用了最速梯度? ?遺傳混合演算法（即gdr ? ? ga演算法） ，使gdr演算法和ga演算法的優點互為補充，提高了收斂速度；最後本文闡述了用以上方法進行atm帶寬動態分配的過程。
  4. The paper applyed principle analysis and numerical computation to compare the scheme of particle injection syphon and convergence - turn tube. the last method was adopted to conduct research because it could produce high concentrated particles stream and operated conveniently. 2

    本文應用原理分析、數值計算等手段，對粒子加入、彎管和收斂?折管方案進行了比較，認為收斂?折管方案可以產生發動機在飛行過載中的凝相粒子聚集效應，且燒蝕參數控制方便。
  5. Aiming at the nonlinearity of state and measure equation and measurement being only angle information, which results in poor observability and classical estimate methods such as extended kalman filter not converging, the boost phase states and covariance are estimated using unscented kalman filter ( ukf )

    針對狀態方程和觀測方程都是非線性方程，觀測量只有角度信息，造成可觀測性弱、經典的濾波演算法如擴展卡爾曼濾波方法不易收斂的問題，利用unscented卡爾曼濾波ukf演算法對主動段進行狀態和協方差估計。
  6. This thesis has studied the dynamic features of a class of the discrete - time neural network model of two neurons, such as the convergence and periodicity and etc. the function of the neuron signal transmission in this model, which belongs to three piecewise constant argument, indicates the following charactersif the signal of one neuron on the network is active between a and b, it will produce invariable encouragement effect on another neuron ; if the signal of one neuron is lower than a, it will produce invariable restrain effect on another one, if the signal of one neuron is higher than b, it will produce no effect on another one

    本文研究了一類二元離散人工神經網路模型的解的收斂性及周期解的存在性等動力學特徵。該模型的神經元信號傳遞函數是三段常數不連續函數。這種信號傳遞函數表明如果某神經元的信號在a與b之間活躍，則它對另一個神經元產生恆定的激勵效果，如果某神經元的信號低於a ，則它對另一個神經元產生恆定的抑制效果，如果某神經元的信號高於b ，則它對另一個神經元不產生作用。
  7. To optimize the multi - phase homing trajectory, an improved adaptive genetic algorithm ( iaga ) was proposed, which could efficiently improve convergence speed and avoid the occurrence of premature

    在對分段歸航軌跡的優化中，提出了改進自適應遺傳演算法，該演算法通過增加「強化」運算元、改進對種群「早熟」程度評價指標等，有效地提高了收斂速度、避免了「早熟」現象。
  8. Adopts vdsm process technology however two outstanding problems are faced to ic layout design when the feature size reaches to 0. 18 m or lower : 1. timing convergence problem seriously affects the circuits schedule, and the interconnect - delay has exceeded more than 70 % of the total circuits ’ delay. 2. si problem, usually it consists two aspects of ir - drop and crosstalk. these problems often affect the chip function after tapout

    本篇論文就是針對超深亞微米階段soc晶元後端設計所面臨的挑戰，提出了運用連續收斂的布局布線策略，尤其是虛擬原型的設計理論，來快速驗證布局，進而提高布線的成功率，並且提出了一種改進的布局評估模型，提高對soc晶元預測布線的準確度;同時，對于時鐘驅動元件選擇，文中提出了一種基於正態分佈模型來達到更有效的選取。
  9. Bloom there for a languor he had but was now better, he having dreamed tonight a strange fancy of his dame mrs moll with red slippers on in pair of turkey trunks which is thought by those in ken to be for a change and mistress purefoy there, that got in through pleading her belly, and now on the stools, poor body, two days past her term, the midwives sore put to it and can t deliver, she queasy for a bowl of riceslop that is a shrewd drier up of the insides and her breath very heavy more than good and should be a bullyboy from the knocks they say, but god give her soon issue

    今晚彼曾做一奇夢：其妻摩莉足登紅拖鞋，身著土耳其式緊身褲，博聞多識者謂此乃進入一個新階段之徵兆。普里福伊太太系住院待產婦109 ，惜預產期已過二日，仍臥于產褥上，助產士焦急萬分，不見分娩。灌以可充作上好收斂劑之米湯一碗，亦嘔吐之，且呼吸無比困難。
  10. The flood routing in the river, where a highest dam of china will be built, is carried out in this paper. a new mathematical model is established which has strong adaptability, good convergence, convenient applicability and various computational functions

    本文結合我國即將修建的最高的大壩工程所處的河段進行洪水演算，建立了一個適用性強、收斂性好、工程應用簡便、具備多種計算功能的數學模型。
  11. We also compute naca0012 airfoil and certain three - foil flow field separately with explicit 4 - step runge - kutta scheme and the implicit lu - sgs scheme and results show the latter is much more efficient. in the end, the capability of the algorithm to deal with multi - bodies in relative movements is demonstrated by a dropping drank problem. it turns out that the unstructured overset grid is valuable and promising in practical application

    同時為了驗證隱式lu - sgs格式的收斂效果，我們對基於單塊網格的naca0012翼型與某三段翼型在不同的來流條件下，分別用帶隱式的lu - sgs格式與顯式的四步runge - kutta格式的解算器進行了數值模擬。
  12. This paper deals with the problem of crosstalk mitigation at both methodological and algorithmic levels. noting that intermediate operations between global routing and detailed routing are very effective in crosstalk estimation and reduction, the authors propose to incorporate several intermediate steps that are separated in traditional design flow into an integrated routing resource assignment stage, so that the operations could easily cooperate to fully exert their power on crosstalk reduction. an efficient priority - based heuristic algorithm is developed, which works slice by slice

    在布線的各階段中，總體布線有較大的靈活性，但對各區域或信號線上的串擾難以估計詳細布線可以精確地計算串擾，但靈活性太小，往往出現反復拆線重布，難以達到設計收斂相比之下，總體布線和詳細布線中間的階段既有一定的靈活性，又可以相對準確地計算噪聲，是解決串擾問題的理想時機。
  13. Based on x - filtered lms algorithm and - filtered lms algorithm adaptive inverse control, we use a new variable step size lms algorithm. adding little computation, variable step size lms algorithm can result in fast convergence speed and low residual error simultaneously. the adaptive feedback control can counteract the beginning error of the system

    在原來的x -濾波lms演算法自適應逆控制和-濾波lms演算法自適應逆控制方法的基礎上，引入了新的變步長lms演算法，在計算量增加不多的前提下，能同時獲得較快的收斂速度和較小的穩態誤差；引入自適應的反饋補償控制克服了被控系統的直流零頻漂移，使控制系統在初開始工作階段快速收斂；還引入自適應擾動消除器，它能最大限度的消除擾動。
  14. These include not only the protection of the rights and interests of intellectual property obligee, but the more important one is to reinforce the recognition of macao residents regarding the protection of intellectual property rights, which will attract more foreign investments as a result. in fact, the government has made great effort in recent years to strike at intellectual property torts by means of criminal prosecutions and administrative means which are effective ways to lessen those torts. however, under the current laws of intellectual property rights, there is no specific article concerning the indemnification system of intellectual property torts, and it only relies on civil laws as a supplement to the current intellectual property laws

    澳門地區作為世界貿易組織中心之成員，有責任履行相應義務，當中不僅加強力度維護和保障知識產權人之權利和利益，更重要是將澳門地區保護知識產權之水平提高，藉此吸引更多的外來投資者；事實上，近年來政府各部門已著力打擊侵犯知識產權的行為，尤其在刑事打擊和行政手段保障兩個方面，已使知識產權侵害行為有所收斂，但是，在澳門現行知識產權法例中，並沒有專章列節規范知識產權侵權損害賠償之制度，為此，根據民法作為補充制度原則，有關侵權行為之機制是否可以完全適用，值得研究和探討。
  15. Using the traffic investigated in some parts of road, the feasibility of estimate of od table was studied. a static multi - path matrix was designed

    （ 2 ）討論了利用部分路段的調查交通量，來推算od表的可行性，並提出了減小收斂域的一種新方法。
  16. At present, it is still in the middle stage of kuznets curve ; the differences of income in the interior of the east and the west are bigger than the middle, and they have been in the scope of income inequality which is regarded to be bigger by the international ; the phenomenon of " the club convergence " of income growth of the fanner between the east and the middle is obvious, but this can not appear between the east and the west, the west and the middle ; the differences in the interior of the high income area and the low income area are smaller than in the interior of the other areas in which the differences are increasing, this conforms to " the u " theory. by adopting theil model to analysis the general farmers incomes differences based on various regions, it is showed clearly that the farmers income inequality among different areas is the main reason to result to rural income differences. this part contents chapter 1, chapter 2 and chapter 3

    結果表明，無論從那個角度來看，改革以來，我國地區間農民收入均呈現差異擴大的態勢，而且擴大的速度快，幅度大，且目前仍處在庫茲涅茲所提出的「 u型」曲線的中期階段；東部與西部地區內部各省之間收入差異較大，目前已進入國際上公認的較大不平等的范圍，而中部內部差異較小，目前仍處于合理范圍之內；同時農民收入增長在東部與中部之間出現了新經濟增長理論所揭示的「俱樂部收斂」現象，而這一現象在東部與西部、中部與西部之間卻沒有發生；高收入與低收入水平區內部差異小，而介於中間收入水平的區域內部差異較大，且保持著較強的擴大趨勢，這一點基本上與「 u型」理論的結論相符。
  17. For conventional high - speed mass production of flexible tubes, the skirt of the tube must be obtained directly by extrusion with a thickness at least six times lower, under conditions so that it is difficult or even impossible, to control the action of the blowing agent in the screw, then in the convergent zone of the extruder, so that a skirt is obtained with a expanded extruded layer with significant irregularities in thickness, which does not make it possible to provide an acceptable industrial packaging

    對于軟管的常規高速批量生產，必須通過將管的厚度擠壓到至少為原來的六倍以下來直接得到管裙，在這樣的情況下很難甚至不可能控制膨脹劑在螺桿中，然後在擠壓機收斂段的運動，這樣，獲得的管裙具有厚度明顯不規則的擠出層，其不可能提供可接受的工業包裝。
  18. In the course of intensive evaporation, the convergent zero flux potentials may occur at depths where the main roots of most plants develop. what ' s more, the capacity of flowing water at the depth is not zero, and it equals to the water absorbed by the root of the plants

    在蒸發強烈的季節，主要植被根系發育的主要地段往往形成收斂型零通量面，水分向這些地帶匯集，匯集的水量接近根系吸收的水量。
  19. First, based on comprehension analysis of the present study status on optimizing method to displacement back analysis in underground engineering home and abroad, intelligent optimizing method, which fits the features of underground engineering, has been developed by introducing annealing algorithm and genetic algorithm and improving them. second, according to practical features of nonlinear displacement for underground engineering, the mechanical model on back analysis to initial ground stress and mechanical parameters of surrounding rock mass in underground engineering is established, which is based on the measuring results of displacement of convergence in underground holes. while, by introducing finite element method and combining improved annealing algorithm and improved genetic - annealing algorithm, the theory and method of elastic - plastic displacement back analysis to surrounding rock in underground engineering has been founded

    首先，本文在綜合分析國內外地下工程優化位移反分析方法研究現狀的基礎上，引進模擬退火與遺傳演算法，並對其進行改進，建立了適合於地下工程問題特點的智能優化演算法;其次，根據地下工程非線性特點，基於地下工程洞周收斂位移量測結果，建立了用於地下工程初始地應力與圍巖力學參數反演分析的力學模型，並引進有限元分析手段，結合改進模擬退火演算法與改進遺傳-模擬退火演算法，分別建立了基於這兩種智能優化演算法的地下工程圍巖彈塑性位移反分析理論與方法，並開發了相應的分析計算程序，為地下工程圍巖穩定性與開挖順序優化分析奠定了基礎;然後，在上述基礎上，根據地下工程開挖施工順序優化設計的特點，建立了基於圍巖塑性區面積的地下工程開挖施工順序優化分析模型，基於改進模擬退火演算法與改進遺傳-模擬退火演算法建立了地下工程開挖施工順序優化分析方法，並開發了相應的分析計算程序;最後，將上述分析計算程序用於工程實例分析，探討了其應用方法，證明了該文研究成果的合理性和可靠性。
  20. Appling immune algorithm to optimum disposal of shunt capacitors on distribution network was studied according to reality. methodology of shunt, capacitors disposal on distribution network is presented and optimum capacitors disposal program was got through simulation arithmetic. this paper presented a practical capacitors grouping program also. these programs were validated practial and economical. by comparing the astringency of immume algorithm to genetic algorithm the conclution that immune algoritnm has faster caculation speed and better global convergence ability in optimum disposal of shunt capacitors on distribution network was got

    模擬計算得出電容器配置方案，並對電容器進行合理分組，經過分析得出該配置方案可行而且經濟。同時，本文對遺傳演算法和免疫演算法的收斂性進行比較，得出免疫演算法收斂性較好，收斂速度快。配電網路的復雜，以往的優化演算法在解決配電網電容器配置問題時由於演算法的缺陷，往往缺乏足夠的優化手段。
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