closed model 中文意思是什麼

closed model 解釋
封閉模型
  • closed : adj. 1. 關閉著的，封閉著的；密閉著的；保密的。2. 〈美國〉準備好了的；定了契約的。3. 【語音】閉音節的。
  • model : n 1 模型，雛型；原型；設計圖；模範；（畫家、雕刻家的）模特兒；樣板。2 典型，模範。3 （女服裝店僱...
  1. Under some natural weak assumptions that do not require the technological coefficients matrix is indecomposable, the fact that the dynamic input - output system is not asymptotically stable and the closed dynamic input - output model exists a balanced growth solution is proved

    利用矩陣特徵值理論和廣義系統理論，在相對弱的條件下（不需要直接消耗系數矩陣不可分解） ，證明了動態投入產出系統不是漸近穩定的。
  2. The development of atmosphere science, especially the numerical meteorologic forecasting model, and the parallel computing are closed linked

    大氣科學尤其數值模式的發展進步與并行計算息息相關，這一點已經成為氣象預報和并行計算兩個領域的共識。
  3. The paper makes a systematic study on frictional torque model for hydraulic system, after the analysis of the ultra ? low speed principle of closed - loop system, it can be concluded that the existence of the difference between static frictional and dynamic frictional torque, and the periodic saltation of the dynamic frictional torque, are the main reasons of the low speed stick - skip to the electrohydraulic position servo system

    針對伺服馬達的低速性能，進行了低速實驗研究，併兼顧快速性能進行了階躍響應和正弦響應實驗研究，對實驗結果進行了分析，得出了一些有價值的結論，提出下一階段進行實驗的建議。
  4. On the basis of predecessor work, the thesis developed fem program of the pile under lateral load, which is based on winker ground model, and m method is introduced into fem program. the calculation values is closed to the results of field and laboratory model experiment, the finite elment method is verified

    在前人所做工作的基礎上編制了基於文克爾地基模型的有限元計算程序，將水平承載樁的「 m法」引入計算程序中，並用現場試驗資料和本文的模型試驗結果與數值計算結果進行了對比，結果表明較為吻合，驗證了程序分析pcc樁水平承載的正確性和可靠性。
  5. At first, the dynamic mathematic model is created in the light of the known dimensions and structure. then base on the mathematic model, dynamic analysis of the system is studied by drawing the open - loop bode diagram closed - loop bode diagram and step response curve using the analysis and calculating function of matlab. the influence factor on frequency character steady and performance of the system is also analyzed

    首先，根據已確定的尺寸參數和結構需要，計算並建立起系統的動態數學模型，然後在已知系統數學模型的基礎上，利用matlab語言強大的分析計算功能，對系統進行動態分析，通過畫出系統的開環bode圖、閉環bode圖及系統的階躍響應曲線，分析了系統的頻率特性、穩定性及系統性能的影響因素。
  6. Algorithm of closed circle dna computing model for time - table problem

    排課表問題的閉環dna計算模型的演算法
  7. Algorithm of dna computing for time - table problem was obtained with introducing manifold biochemical experiments on closed circle dna computing model

    基於閉環dna計算模型引入多種生化實驗得出求解排課表問題的dna演算法。
  8. A closed pulse width modulation ( pwm ) regulating speed system for dc servo - motor is presented, it is composed of avr microcontroller, pwm power driver, unit of speed detection using encoder and a serial communication interface, etc. fuzzy pid algorithm is employed to control the speed and position of wmr. the method can solve effectively some problems such as the uncertainty of wmr ' s model, the varieties demand, the change of situation

    其次，設計了基於avr微控制器（ at90s8515 ）的移動控制系統，其中主要包括pwm功率驅動、測速單元和串列通訊模塊等：對機器人速度、位置控制採用模糊pid演算法，較好地克服了移動機器人模型的不確定性、轉速位置控制要求的多變和環境改變等因素的影響。
  9. On account of the uncertainty existing in the nonlinear ship responded model, we design a dynamic adaptive ship steering controller by using adaptive backstepping. after deducing the update law of the unknown constant, we choose the controller gains to guarantee the closed loop system and the control signal global boundedness

    由於船舶非線性響應模型中含有未知常參數的不確定項，因此採用自適應backstepping的方法，選擇參數自適應調節律，設計動態的船舶航向控制器，實現在線控制。
  10. Moreover, the resulted prediction model of foam size of the closed cell aluminum foam was verified by comparison to the experimental results from the foaming process at different foaming conditions, and the predicted bubble diameter is in good agreement with the experimental ones, the relative error distributes between - 5. 04 % and 6. 32 %

    當入射空氣的壓強、氣流量，液面高度，出氣孔直徑增大時，氣泡直徑隨之增大；當出氣孔數量，液體粘度增大時，氣泡直徑減小，表面張力對氣泡直徑的影響可以忽略不計；靜態條件下液體表面氣泡直徑的預測值和實驗測量值符合得較好，相對誤差分佈在- 5 . 04 % ~ 6 . 32 %之間。
  11. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求，選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化，再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法，通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍，以速度調節器和電流調節器的參數為染色體中的基因，通過遺傳演算法在搜索范圍中優化這些基因，獲得優化解.實驗結果表明，所設計的參數能使系統性能指標有顯著提高
  12. Abstract : reviewed are five methods for the analysis of the penetration of jacked - in piles, namely, cavity expansion method, strain path method finite element method, slip line method and calibration model test. after analysis, it is pointed out that it is more rational to adopt sub - statical spatial axisy numerical formulas based on traditional plane - strain cavity expansion method in the analysis. after spatial closed - form solutions are obtained for soil movements, stresses and initial excessive pore pressures generated durihy pile penetration are found out. it is suggested that finite element analysis together with centrifugal model test be used in verifying the results

    文摘:在分析飽和粘土中靜壓樁的貫入機理的基礎上，對靜壓樁沉樁分析的圓孔擴張理論、應變路徑法、有限元分析、滑移線理論和模型槽試驗等五種方法逐一進行評述，並提出在傳統的平面圓孔擴張理論基礎上加以改進，採用準靜態空間軸對稱方程組對靜壓樁貫入過程進行模擬，從而得出土體位移、應力、初始超孔壓的空間解析解，同時採用有限元分析、模型槽試驗相互印證的研究方法
  13. In bernoulli bond percolation model with parameter p in i, 2, we call a path open if all of its edges are open and closed if all of its edges are closed, we shall write u - v if there is an open path joining vertex u to vertex v. we write c ( x ) for the open cluster containing vertex x, defined by c ( x ) = { y : x - y

    在圖l ~ 2上參數為p的貝努利邊滲流模型中，如果一條路中的所有邊均為開邊，稱這條路為開路；如果一條路上的所有邊均為閉邊，稱這條路為閉路。用u v表示從點u到點v有開路存在
  14. Development study on model wy multi - functional thoracic cavity closed drainage system

    自發性氣胸行胸腔閉式引流術后最適宜拔管時間的探討
  15. Comparing and analyzing the synchronous control strategy, which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve, which forms closed loop control ; basing on the above methods, models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller, we can realize regulating parameters, minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model, which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties. the theory of plc control in dshp is discussed after advanced understanding of the system movements. hardware design and general regulation are given on the base of siemens company products s7 - 200 plc

    本文根據大量的國內外文獻，對研配液壓機的工作原理及設計結構進行了簡介；對位置同步的控制方法進行了比較分析，提出比例閥和伺服閥復合控制的閉環結構來對非對稱雙缸進行同步控制電液比例同步控制方案；在此基礎上著重對比例閥控非對稱缸建模，最後得到位置控制系統的總體數學模型，從理論上對同步系統動態特性進行了分析，並用pid控制器進行參數整定，減小雙缸同步誤差、提高系統的動態響應性能；其中控制性能的分析藉助于matlab軟體中的simulink工具箱，由已建立的數學模型形成模擬模型，得到可視化的模擬結果，從而利於交互方式下調整參數，了解不同的參數對系統的影響，優化同步系統的動態性能；在深入了解系統的動作特性后，對plc控制研配液壓機的原理進行了探討，針對siemens公司s7 ? 200型plc給出了硬體設計的總體規劃，編制出研配液壓機動作控製程序，在編程中著重研究位移傳感器與plc的通訊、雙缸同步運行的pid控制在plc上的實現及bcd碼撥盤輸入程序的植入問題。
  16. The ancient avoided worshipping the king very much, the moon stood and carved with the white jade ; avoiding straightenning one s back, pair is looked at at present, the sharp mouth is closed, one pair of only big ears ; the rabbit has plump and smooth body, four limbs are crooked, bend over and lie on the ground, and then there is a short end : the model is vivid, chisel workers exquisitly, the polishing is bright, it is a rare skillful product

    此器或許為李靜訓生前心愛之物，古人對王免十分崇拜，神話傳說中謂月中有白兔，搗藥秋復春，嫦娥孤棲與誰鄰此玉兔用白玉立雕而成免昂首，雙目前視，尖口緊閉，雙只大耳兔體豐滿光滑，四肢彎曲，伏臥于地，後有一短尾：造型生動，琢工精緻，拋光明亮，是難得的一件巧品。
  17. Abstract : using a series of model tests, the properties of discharge capacity in the closed conduit due to inflow in gate shaft is studied and a method for estimating reducing discharge capacity is provided to designers

    文摘:通過系統模型試驗，研究了泄水道因進口閘門井進水減小泄流能力的特性，並提出了估算方法，可供設計應用。
  18. Numerical simulation on the three - dimensional turbulence flow in the pick - up tube is based on reynolds time - average navier - stokes equations. the k - turbulence - closed model is used in this paper. in the near wall area the standard wall function is used

    對集流管的三維粘性紊流模擬計算是建立在雷諾平均的navier - stokes方程的基礎上，紊流封閉模型採用目前工程上應用比較廣泛的模型，在靠近固壁區採用了標準的壁面函數法。
  19. “ shorter product life cycles and accelerating costs spell doom for the older, closed model of innovation, ” prof chesbrough says. “ only by accessing more ideas, and by using these ideas in more new products and services, can organisations keep pace and achieve an economically viable model of innovation

    「產品生命周期的縮短和成本的迅速提高，預示著較為陳舊、封閉的創新模式註定滅亡， 」切斯布羅格教授表示， 「只有通過接觸更多的創意，並將這些創意應用在更新型的產品和服務上，公司才能保持發展速度，並實現經濟上可行的創新模式。 」
  20. Based on the human capital research both inside and outside of china, chinese human capital input - output partial - closed model in 2000 is compiled by using input - output technique

    摘要在國內外學者對人力資本理論研究的基礎上，藉助投入佔用產出理論與方法，編制了2000年人力資本投入佔用產出局部閉模型。
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