function constraint 中文意思是什麼

function constraint 解釋
函數約束
  • function : n 1 功能,官能,機能,作用。2 〈常 pl 〉職務,職責。3 慶祝儀式;(盛大的)集會,宴會。4 【數學】...
  • constraint : n. 1. 強迫,拘束。2. 約束,壓抑,拘泥。3. 強制力。4. 緊張感[狀態]。
  1. In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits

    論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念,並以加速度模糊函數為分析工具,詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。
  2. This paper develops a deterministic inventory model for perishable items with a mixture of back orders and lost sales under inflation and time discounting, where the backlogged demand rate is dependent on the negative inventory level during the stock out period. the main differences from the existing related models are that the present model takes the maximum present value of profit in a repeatable order cycle as the objective function and proposes a more practical constraint of maximum customer - waiting time to ensure a proper customer service level. then the existence and the uniqueness of the solution to relevant systems are examined and a solution algorithm is shown to find the optimal replenishment policy. at last, some numerical examples are presented to illustrate the applicatioh of the model

    本文建立了一種考慮通貨膨脹與時間價值的變質性物品的庫存模型,在模型中允許短缺發生且拖后的需求速率與在缺貨期間已經發生的缺貨量有關.和已有相關模型的主要區別在於本模型把一個可重復的訂貨周期內的最大平均利潤的凈現值作為目標函數,且增加了在缺貨期間最長顧客等待時間的限制,以確保庫存系統擁有較高的服務水平.然後討論了模型最優解的存在性與唯一性,並提供了尋求模型整體最優解的演算法.最後用實例說明了此模型在實際中的應用
  3. 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。
  4. First, the nonlinear ls problem without constraint is converted to that subjected to inequality constraints by putting constraints on the do as of the received signals and toas of the first arrived signal with geometrically based single - bounce ( gbsb ) statistical channel model and cost - 207 model. then, a penalty function is used in the estimation of ms position

    首先,用基於幾何結構的單次反射圓模型和cost - 207模型,對期望定位用戶的各條多徑信號的波達方向和最先到達多徑信號的時間進行約束,將傳統的解無約束的非線性最小二乘定位問題或近似線性最小二乘定位問題轉化為解不等式約束的非線性最小二乘定位問題;然後,用內點罰函數法估計移動臺的位置。
  5. After analyzing the switching characteristic of mosfet, the object function of optimizing curve of the output capacitance coss is confirmed according to the switching loss caused by output capacitance coss, then the optimized curve of the output capacitance coss is ascertained by applying zoutendijk to seek the optimized value with constraint ; the simulation of switching circuitry and dc - dc circuitry is tested at different frequency in pspice, then the least square method is adopted to fit simulation curves to calculate corresponding energy data

    在電子線路模擬軟體pspice中進行了mosfet開關電路以及典型dc dc轉換線路模擬測試,針對不同頻段的測試結果,採用最小二乘擬合法對模擬曲線進行擬合,計算出相應的能量數據,最後綜合模擬結果確定出減小器件開關損耗,提高dc0c轉換線路效率的器件輸出電容cob優化曲線。
  6. In order to obtain the solution for mapping nc code of a parallel machine tool from virtual axis space to real axis space without the construction of mathematical model, a method of using assembly constraint and dimension driven function of cad software was presented

    摘要為了有助於並聯機床數控系統和模擬系統的開發,克服建立數學模型實現機床數控代碼虛實映射計算的缺點,文章提出了綜合利用cad軟體的裝配約束和尺寸驅動功能來實現虛實映射的方法。
  7. With the generalized algebraic riccati inequality ( gari ) approach, a sufficient and necessary condition for the existence of dynamic output feedback h controllers is presented, such that the resulting closed - loop sy stem is admissible with its transfer function satisfying h norm constraint

    利用廣義代數riccati不等式,給出離散廣義系統存在正常動態輸出反饋h控制器,使得閉環系統是容許的且其從外界干擾輸入到受控輸出的傳遞函數矩陣具有h范數約束的充分必要條件。
  8. The strategy on repair and reinforcement on steel crane girder structures in service based on fatigue dynamic reliability is analyzed in the paper. considering the benefits of repair and the long - term economic affection after repair and reinforcement, using the fatigue dynamic reliability as constraint condition, thinking of that the sum of benefits of repair and reinforcement as object function, the optimization model is put forward. then it is used to an certain crane arc ends repair an reinforcement

    5 、基於疲勞動態可靠性,對在役鋼結構吊車梁的維修加固策略進行了探討,考慮維修加固效益和維修加固后的經濟影響,提出了以疲勞動態可靠性為約束,以維修加固總效益為目標函數的優化決策模式,並通過某鋼廠圓弧端吊車梁的維修加固實例驗證,可為工業建築吊車梁的設計,管理和維護提供依據。
  9. Optimum design for double - horse head beam pumping unit is a question of non - linear programming with inequality constraint condition and multi - objective function

    雙驢頭抽油機優化設計是一個具有不等式約束多目標函數的非線性規劃問題。
  10. Two - level algorithm is developed to deal with the two objective function optimal designs that are the radial constraint force and the axial force of the upper structure. corresponding program has been developed to optimize the prestress of the lamella ' s suspen - dome and kiewitt ' s suspen - dome. analysis of construction process is the key problem to suspen - dome

    本文採用二級優化的步驟對徑向約束反力和上部桿件軸力兩個優化目標同時進行了預應力優化,並編制了相應的程序對聯方型和kiewitt型弦支穹項結構進行了預應力優化設計。
  11. In the light of the weakness of the traditional method, this thesis improves the point spread function ( psf ) of the imaging system. meanwhile, this thesis adds line process as a priori to set up several convex constraint sets

    針對傳統凸集投影估計法的缺點,本文提出了改進的點擴散函數,同時利用圖像的先驗知識,提出了加入線過程作為凸約束。
  12. The minimum erathwork of slope cutting is regarded as target function, and the anticipated factor of safety of slope as a constraint condition, so this problem is equivalent to optimality one with constraint conditions. thus the optimal scheme of slope cutting can be obtained

    這里將最小的削坡土方量作為目標函數,將預期的邊坡安全系數作為約束條件,把削坡問題等價於一個有約束的優化問題,可找出最優的削坡方案。
  13. According to the work condition of one 1450 five - stand tandem cold mill, reduction distribution as decision variable, the penalty function was established, in which rolling pressure distribution ratio was as objective function and the constraint condition of reduction distribution was as penalty term

    根據某1450五機架冷連軋機生產工況,以壓下量分配為自變量,以軋制力成比例分配為目標函數,將壓下量分配的約束條件作為懲罰項,建立懲罰函數。
  14. To investigate the influencing law of technical elements in enterprise production, based on certain assumptions, a three - element ( technology, labor and capital ) output function is defined ; through conceiving and solving an optimization model under the condition of invariable total production cost and maximum output, this paper deduces the optimal proportioning relationship between optimum technical growth rate and conventional production factors - labor and capital, further constructs the optimization model of technical growth rate under total production cost constraint, and design a genetic algorithms program to solve such model

    摘要為了考察企業生產中技術要素的作用、規律,在一定的假設條件下,對其技術要素下了定義,認為其產出函數包括技術、勞動及資本要素;通過構建與求解生產總成本,構建最大條件下的優化模型,推導出技術最優增長率與傳統生產要素勞動與資本的優化配比關系,進一步構造了企業在生產總成本約束下的技術增長率優化模型,並設計了遺傳演算法程序對模型進行求解。
  15. In the paper, the transmission power of section constituted by the assigned branch is seen as objective function, assigning the adjustable generators both in sending system and receiving system, assigning the faults set, including the constraint conditions such as the differences between the angles of rotor and the inertia center angel of the whole system, the thermal stability of branch and node voltage, obtaining the results by using interior - point solution and line - predominant jordan

    本文提出的考慮暫態穩定約束的可用輸電能力演算法是以指定線路組成的斷面的傳輸功率為目標函數,指定送端系統和受端系統中參考調節的發電機,指定故障集情況下,以發電機轉子相對全系統慣性中心的角度差、線路熱穩定、節點電壓等構成約束條件,採用內點法和行主元約當逐行消去法求解問題的最優解。
  16. A full mathematical model of optimal flow pattern design withengineering constraints was put forward, based on modern optimal control theory. an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine. according to integral optimization of turbine stages, a full physical model and mathematical expression were put forward for proposition of optimal flow pattern, including all performance parameters in turbine stages. this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state, fixed terminal condition and constraints for part of state terminal variables. the program was also worked out according penalty function method and conjugate gradient method. the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function

    把近代最優控制論方法引入軸流透平葉片的設計,在優化的軸流透平子午通道內,建立包括透平級內所有性能參量的最優流型命題的完整的物理模型及其數學表達式,並歸化為一個在給定初始狀態、自變量終端固定、部分狀態變量終端受有約束的條件下,使級的某一性能指標(如級的功率)達到最優的最優控制問題,應用「代價函數法」及「共軛梯度法」編制計算程序,計算得到符合給定約束條件、並使目標函數取極值的最優環量分佈,結果是令人滿意的。
  17. It confirms the movement equation of particle and adopts death penalty function to deal with all constraint term, and provides with the step of algorithms to solve 0 / 1 knapsack problem

    確定了該演算法中粒子的運動方程,採用死亡罰函數法處理了約束條件,給出了該演算法求解0 / 1背包問題的實現步驟,並對實驗數據進行了測試。
  18. Furthermore, the constraint condition of the transfer function at the zero frequency and the phase invariability condition of transfer function are presented

    與傳遞函數極點的理論關系,得到了傳遞函數低頻約束條件和傳遞函數相位不發生畸變的補充條件。
  19. The following is the detailed, 1. in the chapter 2 of constructing system modeling, first, the manufacture tasks are calculated and the process is described. then, according to the theory of constraints ( toc ), the constraint items and target function of corporation runing are defined and three rules of heuristic algorithm are described. at last, the model to arranging production plan by heuristic algorithm and the fuzzy logic model to follow the plan be carried out are constructed

    在建立系統模型部分,首先,明確企業的加工任務和加工工藝;其次,採用toc理論確定企業生產的約束條件,確定企業運行的目標函數,建立啟發式搜索編排的3大規則;最後,建立啟發式搜索編排生產計劃的模型,和生產計劃執行情況的模糊跟蹤模型。
  20. The author attempt to analyze the intercultural business negotiation process from a perspective of the relationship between culture context and intercultural business negotiation, and explores the function of cultural context within the four dimensions - interpretation function, constraint function, repairing function and choice of utterance function

    因此,談判者在使用語言時,可以根據交際場合的需要,激活相關的認知語境要素,使之投入運作,讓談判得以順暢進行。
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