suboptimal 中文意思是什麼

suboptimal 解釋
次優的
  1. Background : in - vitro maturation ( ivm ) of human oocytes would be an attractive alternative to gonadotrophin stimulation for in - vitro fertilization ( ivf ). it could avoid the complications of gonadotrophin stimulation and reduce the cost of drugs. however, the efficiency of existing ivm technique is suboptimal because embryos resulting from ivm oocytes exhibit frequent cleavage blocks and low implantation rate

    研究背景：近20年來，輔助生育技術有了突飛猛進的發展，體外受精、卵漿內單精子注射技術（ intracytoplasmicsperminjection ， icsl ）和種植前遺傳學診斷技術的成熟標志著人類生殖醫學進入了嶄新的領域，但同時也不能否認，在這一領域中還存在諸如妊娠率低、藥物副作用和多胎率高等問題。
  2. Secondly, the mixed h2 / h control is formulated as a game problem of incomplete information, a suboptimal 2x2 non - zero game model is constructed, where two channels are chose as players and h2 and h control are pure strategies, and an algorithm for mixed h2 / h control, which is based on the nash ' s bargaining theory, is derived to achieve the nash equilibrium point. finally, handling stability, ride comfort and steering handiness are related with vehicle suspension system and electrical power steering

    其次，基於對策論把h _ 2 h _混合控制問題抽象為兩個對局者信息不完全情況下的非零和博弈模型，在以次優范數值構造的2x2非零和博弈模型中把兩類通道作為參加博弈的兩方，以h _ 2和h _控制方案作為兩種純策略，基於納什談判解原理設計出求解h _ 2 h _混合控制問題納什均衡點的演算法。
  3. Through adjusting coordination variable eta ( estimated team arrival time ), coordination agent selects paths and feasible velocities among each uav initial optimal and suboptimal paths, such that timing constraint is satisfied

    引入團隊預計到達目標時間（ estimatedteamarrivaltime ）作為協同變量，飛行路徑的代價作為協同函數，通過協同函數傳遞各架飛機到達目標的時間范圍。
  4. Some patients receiving adefovir dipivoxil ( hepsera ) at the approved dose of 10 mg daily for the treatment of chronic hepatitis b virus ( hbv ) infection have a suboptimal virological response characterized by a slow and moderate decrease in hbv replication

    有些接受阿德福韋核準每天10毫克藥量治療慢性乙肝感染的患者常出現緩慢，中度減低病毒復制的不佳抗病毒效應。
  5. A suboptimal decision fusion scheme that minimize the probability of error at the fusion center is presented, it consists of a minimum - error - probability ( mep ) test at the fusion center and likelihood ration tests at the sensors

    提出了一種能將聚變中心誤差概率降至最低的次優化聚變解決方案，它由聚變中心的最少誤差概率（ mep ）試驗和傳感器的可能定量試驗組成。
  6. 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
  7. In operating process of systems, besides the external randoml disturbance from the, also influence also comes from inside as parameter changing, in order to cope with this two kinds of uncertainties, a minimization variance control strategy based on innovations is proposed rind the analytic solution of this suboptimal control is obtained in this paper

    摘要系統在運行過程中，除了受到來自外界的隨機干擾外，還受到了諸如內部參數引起的不確定性的影響，為對付這兩種不確定性，採用雙態控制方法，提出了基於新息的最小方差控制策略，獲得了該次優控制律的解析解。
  8. 4. suboptimal fading ddf ( sfddf ) and suboptimal fading ukf ( sfukf ) algorithm can be obtained with the application of suboptimal fading ekf. suboptimal fading algorithm is an error compensative technology basing on the kalman filter orthogonality principle, which can greatly improve filtering precision and stability

    4 、把一種帶次優漸消因子的ekf演算法推廣到ddf和ukf演算法中，得到sfddf和sfukf演算法，次優漸消因子是一種基於kalman濾波正交原理誤差補償技術，它的引入較大的改善了濾波精度和演算法穩定性。
  9. For large errors introduced by nonlinear state - space model in passive locating and tracking problems, various suboptimal recursive filtering algorithms are aralyzed and summarized, such as the extended kalman filtering ( ekf ), the modified gain extended kalman filtering ( mgekf ), the second order filtering and the adaptive extended kalman filtering ( aekf )

    摘要針對被動定位跟蹤中狀態空間模型非線性程度較高所引發的濾波精度偏低的問題，分析和總結了已有的包括推廣卡爾曼濾波（ ekf ） 、修正增益的推廣卡曼濾波（ mgekf ） 、二階濾波、自適應推廣卡爾受濾波（ aekf ）等各種次優遞推濾波演算法的特點。
  10. This results in a suboptimal, but fixed, services model

    這會產生一個未達到最佳狀態、卻又固定的服務模型。
  11. This thesis suggests a process considered minimizes the population size as similar individuals occur in the fitter members of the population, which helps reduce the execution times for ga by removing the redundancy associated with the saturation effect found in the later generation. this thesis uses a method that adds dynamic penalty terms to the fitness function according to the optimal degree of solutions, so as to create a gradient toward a feasible suboptimal or even optimal solutions. on the basis of the difference of the biggest and the smallest of fitness of individual, modifying the fitness function in order to convergence is a satisfaction

    動態調節種群大小，去掉遺傳演算法在迭代後期搜索產生的過多相似個體，達到減少計算時間的目的；按照解的優劣程度給適應度函數增加一個在ga搜索過程中動態改變的可變罰函數，給搜索最優解創造一個梯度，使遺傳演算法收斂到可行的較優解或最優解；根據適應度值最大和最小個體的差修正適應度函數，使適應度函數值適中不容易造成收斂太快、局部收斂或根本不收斂而變成隨機搜索；為了避免「近親繁殖」採用競爭擇優的交叉操作；利用并行遺傳演算法的思想，提出一種自適應多子種群進化策略；提出人口汰新政策來解決類似甚至相同的個體的情況發生。
  12. Figure 1 shows the part weight distribution of quality moulding and suboptimal moulding

    圖一顯示了高品質成型和低品質成型所生產產品的重量分佈。
  13. Suboptimal control for plants with pure time delay based on state feedback

    基於狀態反饋的純滯后對象的次優控制
  14. Then, the suboptimal control law is achieved using the dynamic programming principle

    然後，使用動態規劃得到增廣系統的次優控制律。
  15. Firstly, we analyze third party logistics in the condition of the simple game, a suboptimal nash equilibrium is drawn by negative reasoning and no win - win trade appears

    首先分析一次博弈下的第三方物流，通過逆向推理求解出一個次優的納什均衡，雙贏的交易未能發生。
  16. Calcineurin inhibitor minimization and addition of mycophenolate mofetil ( mmf ) or sirolimus have shown variable improvements in renal function, though suboptimal efficacy and safety with the currently proposed regimes have limited their application

    鈣調磷酸酶抑制劑最小化以及附加麥考酚酸莫酯（ mmf ）或西羅莫司，已經展現出不定的改善腎功能的作用，雖然欠佳的療效和安全性以及當前提出的管理體制限制了它們的應用。
  17. The main works of this paper can be summarized as follows : a multiuser detection method based on immune algorithm is proposed. this method decreases greatly computation complexity of optimal multiuser detector and achieves suboptimal performance

    本文的主要工作可以概括如下：提出了基於免疫演算法的多用戶檢測方法，這種方法大大降低了最佳多用戶檢測器的計算復雜度，同時達到了次最佳的檢測效果。
  18. Then a suboptimal solution of the graph maximum equal - cut problem is presented employing the randomized algorithm and the improved coordinate ascent ( descent ) algorithm on the optimal solution of semidefmite relaxation

    在利用lagrange乘子理論得出原始問題的等價形式之後，將近似演算法與改進的坐標上升（下降）演算法結合，求得原問題的次優解。
  19. Therefore, the query optimizer might choose suboptimal plans for queries

    因此，查詢優化器可能會選擇不太理想的查詢計劃。
  20. Relying on statistics from an earlier version of sql server may cause suboptimal query plans

    如果所依賴的統計信息來自sql server的早期版本，查詢計劃有可能不是最佳的。
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