無約束變量 的英文怎麼說

中文拼音 [wúyāoshùbiànliáng]
無約束變量 英文
unbound variable
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 約 : 約動詞[口語] （用秤稱） weigh
  • 束 : Ⅰ動詞1 （捆; 系） bind; tie 2 （控制; 約束）control; restrain Ⅱ量詞（用於捆在一起的東西） bundle;...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 約束 : keep within bounds; restrain; bind; bound; boundage;tie; restraint; restriction; engagement; repr...
  1. Optimal design with three variables is then done to the elbow - bar mechanism of the mp1040b moulding machine by utilizing the method of punishing function for constraint problems and variational scale for unconstraint problems. the optimal target function is the maxium of gradient in one work travel for the moulding plank of the elbow - bar mechanism. the result shows that the maximal gradient of moulding plank in one motion period declines by 25. 7 after optimization, and the angular acceleration of the bottom moulding plank decreases greatly

    動力學分析中，各構件的質量和轉動慣量是通過pro / engineer軟體，先建立各個構件幾何模型而求得；然後，利用解決約束問題的罰函數法和處理無約束問題的變尺度法對mp1040b型模切機肘桿機構進行三個設計變量的優化設計，優化目標函數為肘桿機構的下模切板在一個工作行程中達到的最大傾斜程度；通過優化設計，模切機肘桿機構的下模切板在一個工作行程中的最大傾斜程度降低了25 . 7 ，其角加速度明顯減小，提高了模切機動力學性能。
  2. The connection between the torque and the polarized charges is established. on the base of mathematical model of torsional effect, using multivariate unrestrained nonlinear optimization method, we research cutting angles and parameters of crosssection to get best torsional sensitivity

    在建立石英晶體扭轉效應模型的基礎上，應用多變量、無約束非線性優化方法對于晶體切型、截面形狀等參數進行了優化，以獲得最佳扭轉靈敏度。
  3. 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
  4. Abstract : this paper developed time domain integral constraints on error response for siso feedback control systems caused by nominal plant ' s near cancellation of stable pole - zero near the j - axis. these integral constraints should be satisfied by any feedback control systems. these integral constraints give new insight into the inherent trade - offs. it will result in the settling time longer or the infinite norm of the error response larger when there are near cancellations of stable pole - zero near the j - axis. hence, when feedback control systems are designed, it is necessary to avoid the compensator ' s poles and zeros nearly cancelling the nominal ' s zeros and poles ( even if these poles and zeros are stable )

    文摘:導出了單輸入單輸出反饋控制系統誤差響應基於名義系統穩定的零、極點近似相消的時間域積分約束，此積分約束是任何反饋控制系統均應滿足的.這一約束給出了單輸入單輸出反饋系統固有折中的新的觀點.名義系統穩定的零、極點近似相消的存在導致反饋控制系統的調節時間延長或者誤差響應的無窮范數變大.因此，在反饋控制系統設計中，盡量避免補償器的零、極點與名義系統的極、零點近似相消（即使這些零、極點是穩定的）
  5. First because of the change of the number of material between supply and need, we could n ' t know exactly situation before it happened, so we build the maths model of alot material with fuzzy constrained which accords with the fact and solves the problem better

    首先以供需雙方的物資數量經常變化，無法事先準確知道為背景，建立了帶模糊約束的物資分配問題的數學模型，這一模型符合實際，較好的解決了問題。
  6. The payments for capital and labor are totally set by market power and capital ( labor ) suppliers of any firm have no power to alter the transaction terms with its labor ( capital ) suppliers to their advantage and thus every firm generate zero economic profit. every firm ' s value is equal to the sum of the market prices of the human assets and physical assets that it use and thus the formation and disbandment of a firm have no influence on the interest of any of its members. through an efficient comparison of production within the firm and the scattered individual production coordinated through markets, the dissertation reveals that the origin of the power relationship phenomenon within the firm is that the suppliers of the resources to the firm in real world are unable to enter into legally binding complete contracts as walras assumed

    在一般均衡範式中，企業是一個追求利潤最大化的原子；企業的生產過程被描述為一個「黑箱」 ，它自動地、無摩擦地把任何一組投入轉化為既定的技術約束下所能生產的最高產出；資本和勞動僅僅是生產過程中不同類別的投入，它們之間的關系是對稱的，它們各自的報酬都是完全由市場整體的力量決定的，任何一個企業的資本（勞動）提供者都不可能為了增進其自身的利益而改變與勞動（資本）提供者的交易條件，從而任何一個企業產生的經濟利潤都為零；任何一個企業的價值都等於該企業使用的人力資產和非人力資產的市場價格之和，組成一個企業不會增進任何參與人的收益，解散一個企業也不會降低任何參與人的收益。
  7. The problem is then fed to a nonlinear programming routine to solve for all parameters. the flight dynamics model with yawing motion of uh - 60a is given, scale factors of state variables and control variables are applied based on the consideration of algorithm convergence. then, the optimization of trajectories is expressed as optimal control problem with a performance index constrained by helicopter performance limits, faa regulation and so on

    首先，建立帶偏航運動的直升機點質量模型，然後對狀態變量和控制變量進行無量綱處理，因為狀態變量和控制變量量值相差較大，這使得優化演算法收斂效果變差，所以需要選擇適當的縮放因子，最後把直升機單臺發動機停車后的飛行軌跡表示成一個最優控制問題，即在考慮直升機性能限制和far規范后，指定一個優化性能指標，選擇合適的路徑約束，然後再解最優控制問題。
  8. The solving steps are as follows : the field is divided into three regions by the cylindrical surface of the finite - length cylinder and the location of the delta - coils. because " the surface current source is placed at the interface, the non - homogenous restricted equation on the magnetic vector potential is transformed into the homogenous helmholtz equation. by using the method of separation of variables to solve equation and according to the interface conditions and the condition at infinity to determine the unknown constants, the expressions for the magnetic vector potential of the three regions are solved out

    在求解過程中，假定放置式圓柱線圈是由無窮多個對稱圓環線圈密饒而成，首先求解含有有限長磁芯的通電對稱圓環線圈的電磁場：以有限長圓柱磁芯的側面和圓環線圈所在圓柱面為分界面將場域劃分為三個小區域，由於場源放置在內邊界面上，使得關于矢量磁位的非齊次約束方程轉化成齊次亥姆霍茲方程，利用分離變量法求解，根據分界面鄭州大學碩十研究生畢業論文摘要條件以及無限遠條件確定待定常數，從而得到各場區矢量磁位的表達式。
  9. In the image reconstruction based on optimization without constraint, the variable metric method, the steepest descent method, and conjugate gradient method were applied to image reconstruction to improve iterative efficiency and reconstructed quality, and their virtue and shortcoming were analyzed

    摘要在無約束最優化為基礎的圖像重建問題中，為了提高迭代效率以及重建圖像質量，首次提出將變度量法應用到圖像重建中。
  10. In order to assure that the stress and strain state of structure is secure, the author analyses respectively the objective functions of the reasonable finished state and buckle - cable adjusted phase ; thus, the optimized model based on fga is framed. finally according to the example, the computation datum are compared with the iterative forward analysis method and the optimal control theory. the result shows that this method can be used conveniently and meet the construction and design precision

    為了滿足大跨度鋼管混凝土拱橋施工的安全性與成橋預期的內力狀態和拱肋線形，本文結合工程實例，分別對合理成橋狀態和扣索索長調整的目標函數的確定進行了分析，將一組多變量、多約束的最小化問題無約束化，從而建立起適合於該問題的遺傳演算法優化模型，將其計算結果分別與迭代前進法和隨機最優控制理論進行了比較；結果表明，採用該方法編制的基於結構計算的遺傳優化程序操作靈活，能很好的滿足施工和設計要求。
  11. Reactive power optimization is a large - scale nonlinear optimization problem with a large number of variables and uncertain parameters, the operating variables include continuous and discrete variables, so the optimization becomes very complex

    電力系統的無功優化問題是一個多變量、多約束的混合非線性規劃問題，其操作變量既有連續變量又有離散變量，使得優化過程十分復雜。
  12. This algorithm improves confidence in se by estimating parameters and states at the same time. simulation results on test power systems which range in size from 4 to 118 buses, have shown the virtues as follows : getting unbiased estimation without detecting and identifying bad data in measurements ; solving state and parameter estimation for power system with good convergence and excellent robust property ; increasing the numbers of iterations a little bit with the test systems expanded ; estimating many transformer taps simultaneously and remaining the main state estimation ; keeping the estimated relative error within + 0. 1 % and processing efficiently equality constraints and ill condition with polynomial complexity

    對ieee ? 4 118節點系統和廣西主網進行的模擬結果表明： l1范數估計具有不良數據拒絕特性，當量測量中存在不良數據時，該演算法在不經檢測和辨識不良數據情況下仍是無偏估計，具有良好收斂性，所需迭代次數隨著問題規模擴大而增長極小；能夠同時估計多個變壓器抽頭，並保持狀態估計主體；在滿足可觀測性條件下，估計的相對誤差保證在0 . 1以內；能夠有效處理等式約束和病態條件，並具有多項式時間性。
  13. Motivated by the above results, the third part of this paper considers the equivalence problems that every stationary point or kuhn - tucker point is an efficient solution. we define i - quasi - invex vector function., i - strictly quasi - invex vector function and kt - i - strictly quasi invex vector function, and derive the above equivalent condition for unconstrained or constrained multiobjective programming

    於是，在本文的第三部分，我們定義了類不變擬凸、類嚴格不變擬凸、 kt -類嚴格不變擬凸的向量值函數，並且在無約束或約束多目標規劃中，獲得了每個駐點（或k - t點）是有效解的等價條件。
  14. The solution existence for dynamic topology optimization of truss is explored from the engineering point of views : when the design variables ( section areas ) are continuous and their bound are not imposed, if there is no frequency constraint, the optimal solution always exists for a given optimization problem and contrarily, when the frequency constraint is considered, the frequency will become the key constraint and also the solution existence will be changed by the topology alteration

    從一般工程意義上探討了桁架結構動力學拓撲優化設計解的存在性：無固頻約束時，設計變量連續且不考慮上限約束，則優化問題總是有解；考慮固頻約束時，頻率約束是是否有解的關鍵約束，並且改變結構拓撲形狀可以改變解的存在性。
  15. In addition to interface and base class constraints, some special constraints are defined such as the parameterless constructor constraint, which requires that type arguments have a default constructor a public parameterless constructor

    除了介面和基類約束外，還定義了一些特殊的約束，例如無參數構造函數約束，它要求類型變量具有一個默認的構造函數（公共無參數構造函數） 。
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