state variable technique 中文意思是什麼
state variable technique
解釋
狀態變量法-
A supplementary variable technique is used to obtain the steady - state function and the steady - state probability generation function of the number of customers in the system
採用補充變量法，首先建立了系統穩態下的狀態轉移方程，通過求解得到了穩態下系統隊長的概率母函數，進而計算出穩態下系統的平均隊長。 -
Abstract : digital basinis made from digital elevation model considering spatial variability within a catchment. on the basis of digital basin, the digital approach to describing hydrological processes within a catchment is investigated. digital hydrological model is regarded as a modern physically - based modeling technique that includes a large amount of information. the case study on the shiguanhe catchment in the huaihe river basin, intensified observation field of gewex asian monsoon experiment project, has shown that the digital mode lperforms very well not only in simulating runoff processes at any specific site, but also in simulating spatial distribution and temporal variation of hydrological elements and state variable ( especially soil moisture ), if compared with traditional hydrological models. that provides solid foundation for full use of now available observation in formation and in - depth mining of hydrological data
文摘:考慮流域下墊面空間變異性，基於數字高程模型構建了數字流域，並在此基礎上對描述流域水文物理過程的數字方法進行了探討.文章認為，數字水文模型是一種有物理基礎的包含大容量信息的現代模擬技術.史灌河流域實例研究表明，數字水文模型可以十分方便地輸出水文要素和狀態變量的空間分佈與時間序列，這對充分利用現有觀測信息進行水文信息的深層挖掘創造了條件 -
The sol - gel method and solid - state thermal reaction technique were used to prepare the composite oxides with variable lithium content. the doping treatments of some compounds were conducted. dta and tg were used to analyse synthesis mechanism, xrd to analyse phase composition, sem to observe morphology, li - b / licl - kcl / oxide simulated thermal cells to analyse the lithium - intercalation mechanism and properties of cathode material
實驗中採用溶膠?凝膠工藝和固相熱反應技術制取相應的不同鋰含量的復合氧化物，並嘗試對某些化合物進行適當的摻雜處理，應用dta和tg分析合成機制、 xrd分析所得物的物相組成、 sem觀察其形貌，模擬li - b / licl - kcl /氧化物的單體熱電池來分析陰極材料的嵌鋰機制及其電極性質。 -
In the computational methods of tpbvp, in order to reduce some difficulties involved in solving a tpbvp via adjoint variables, we discuss a direct method in which state and control variables are indirectly parameterized, the method employs a recently developed direct optimization technique that uses a piecewise polynomial representation for the state and control variables, thus converting the optimal control problem into a nonlinear programming problem, which can be solved numerically. it makes the initial iterative variable more easy to be determined
在數值解法中，為了減少解決兩點邊值問題共軛變量帶來的困難，主要討論了將狀態變量和控制變量進行參數化的一種直接方法，這種方法採用了近段發展起來的使用分段的多項式來代替狀態和控制變量的直接優化方法，然後最優控制問題就轉化成可以用數值方法解決的非線性規劃問題，使得迭代初值更加容易選取。
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