rational boundary 中文意思是什麼
rational boundary
解釋
有理邊界-
Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping
本文的主要內容如下： 1 ）對翅片管蒸發器結構特點進行分析，選取適當的微元控制體，就干、濕和霜工況下對每個微元分別進行傳熱傳質分析，基於經驗關系式確定霜的有關參數，對于霜工況下的霜生長建立模型，經適當假設，運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型，為系統模擬奠定基礎； 2 ）對蒸發在大擾動下的開、停機過程，運用動態集中參數模型進行分析和計算，為更好地描述製冷系統運行的全過程奠定基礎，同時也為製冷系統實現自動控制提供一定的理論基礎； 3 ）對蒸發器正常運行過程，運用動態分佈參數和參數間定量耦合的觀點來分析和計算，為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性； 4 ）編寫翅片管蒸發器動態特性模擬計算程序，可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場，實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。 -
Using method of oil - flow visualization techniques and measuring pressure distribution along airfoil chordwise and spanwise studies have been down for sidewall boundary - layer displacement effect in two - dimensional wind tunnel. three different chord models were tested in two different wind tunnel. in order to clarify the sidewall effects and study method of sidewall suction theory and sidewall interference correction method to remove effects of sidewall on model. the results of oil - flow test show that selection rational suction wary can obtain better testing results. by investigations on effects of the sidewall boundary layer suction and application of a sidewall interference correction method
為了很好地解決多機場航班隊列的擁塞問題，在將進場容量、離場容量與機場容量作為統一整體的情況下，充分考慮了機場間的網路效應，詳細研究了多機場航班隊列的優化問題，建立了多機場開放式非實時流量管理的數學模型，通過選取適當的決策變量，使其為線性0 - 1整數規劃模型，實現了中心流量集中管理.與其它演算法不同，本文提出的啟發式隱枚舉演算法能很好地解決此類問題，對某機場網路系統的模擬結果證明了所建模型、優化演算法及相應軟體的有效性和可靠性 -
There are a lot of methods available to create test vector. the thesis addresses their characteristics of the methods and special structure of boundary scan circuit respectively and come to a conclusion of pseudo - exchausive testing the most rational method applied to this situation
測試矢量的生成方法很多，本文在研究了各種方法的特性，以及邊界掃描電路的特殊結構后，採用了偽窮舉法生成測試矢量。 -
Thirdly, the effects on the cv rational interpolating splines from the perturbation of the two boundary conditions are analyzed. from this the error bounds of first and second derivatives of cv rational interpolating spline are given
然後，分析了兩類端點條件的擾動對cv有理插值樣條函數的影響，給出了它們在非均勻節點處的一階和二階導數值的誤差界 -
Through the analysis to these questions the rational boundary of ntms can be better understand. the conclusions are that the rationality of ntms has a lot to do with its goal. the practices of e
結論是:實施非關稅措施的目的與其合理性邊界有很大關系，而執法者對這些措施的具體適用又會對其是否會轉化為貿易壁壘產生重大影響 -
The expansion of hearing boundary, the hearing litigant ' s rational choice, the surveillance of the hearing condition is essential to public hearing consummation
聽證邊界的擴展、聽證當事人的理性選擇、聽證召集條件的監督是完善聽證召集程序的必要條件。 -
Lastly, the cv rational interpolating splines above are extended to the case of two variables. their existence and uniqueness are proved for two usually boundary conditions as well. the cv rational interpolating splines of two variables are represented as tensor product from of the case of simple variable
最後，定義了二元cv有理插值樣條函數，就兩類邊界條件證明了其存在唯一性，並建立了它的表達式，給出了廣義deboor演算法 -
The error bounds of first and second partial derivatives for the two - dimension rational splines produced by the error of boundary conditions are estimated
討論邊界條件對二元cv有理插值樣條函數的影響，分別建立了兩類邊界值所控制的估計式
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