radial distribution 中文意思是什麼

radial distribution 解釋
徑向分佈
  • radial : adj 1 光線的；光線狀的。2 放射的，輻射（狀）的。3 鐳的。4 【數學】半徑的；【物理學】徑向的；【解...
  • distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
  1. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  2. Taking load uncertainties, infeasibility problem and multiple objection of the reactive power optimization in the radial distribution system into consideration, loads are modeled as fuzzy interval numbers. fuzzy power flow is proposed based on fuzzy interval load for the more practical membership function of line losses rate and maximal voltages offset. this thesis presents multiple objection model of the reactive power optimization considering uncertainties using the fuzzy set theory

    對配電網電壓無功優化問題中負荷的非概率性的不確定性問題、多目標問題、約束不可行性問題進行了研究，用模糊區間來描述實際的負荷情況，並用負荷的模糊區間值計算配電網的潮流，得到有功功率損耗和電壓的模糊區間值，使網損率和節點電壓最大偏移量的隸屬函數更接近實際情況；將改進遺傳演算法與模糊集理論相結合，通過求解多目標函數和約束條件的模糊集合的交集，得出網損率和節點電壓最大偏移量最小的最優運行狀態。
  3. In this thesis, load flow algorithm for radial distribution networks is also discussed. a new alternate iterating algorithm is adopted which shows its efficiency in distribution reliability evaluation. a new algorithm of double - - layer tree structure to simplify the complex distribution network is proposed, which is used in fmea to improve the efficiency of distribution reliability evaluation

    根據實際配電網的運行情況，建立了分析其可靠性的統計和預測指標；討論了適用於配電網可靠性分析的潮流計算方法；提出了雙層樹結構的配電網路簡化方法，並應用於故障模式後果分析法中，提高了應用故障模式後果分析法分析配電網可靠性的效率。
  4. The back / forward sweep method is the most popular algorithm for loaf flow solution of radial distribution systems

    摘要前推回推法是放射形配網潮流計算最基本的演算法。
  5. The reactive power optimization of a radial distribution system can efficiently minimize the real power losses and improve voltage level of it, so that the yearly running charge will be reduced and the quality of power energy can be increased

    配電網無功優化可以有效地降低網路有功損耗，提高系統的電壓合格率，從而降低網路運行費用，提高供電質量。
  6. Analysis of gas temperature radial distribution in neh2cubr laser discharge tube with diaphragms

    隔環結構的neh2cubr激光放電管氣體溫度徑向分佈
  7. The radial distribution function was introduced in order to take into account the effect of the uneven local particle concentration on the particle collision probability

    推導了高顆粒濃度氣固兩相流顆粒間碰撞概率的計算公式，引入徑向分佈函數來考慮局部顆粒濃度不均勻性對顆粒碰撞概率的影響。
  8. Making use of the idea of the parallel genetic algorithms, presenting the adaptive multiple subpopulation evolutive strategy. presenting extinction and immigration strategy in order to avoid the similar or even same individuals appear. in order to enhance convergence velocity of reactive power optimization of the radial distribution system, combining the characteristic of the radial distribution system, a sensitivity analysis approach was build up for optimal selection of capacitors and mutation of transformer tap changer

    為了提高配電網無功優化的收斂速度，結合配電網的特點，提出採用簡單可行的靈敏度公式選擇無功電容補償器的安裝地點，並用靈敏度分析變異變壓器分接頭，使變異運算元的選取更符合配電網無功優化問題中關于調節變壓器分接頭的實際情況，減少了一些不必要的變異運算，使適應性和魯棒性加強；根據實際情況採用無功補償電容器的啟發式變異，使變異運算元的選取更符合無功優化問題中關于補償電容器的實際。
  9. The first - stage construction of dayaowan has formed a region about 1 km2 by dredging. in this area, because the dredging points were set scarcely, soil formed becomes a regional and radial distribution, in which the soft deposits occupies about 40 %

    大窯灣一期工程利用疏浚吹填形成了約1km的區域，在此區域中，由於設置的吹填點較少，形成的土質呈區域性放射形分佈，軟基佔40左右。
  10. Through the mathematical evaluation or derivation of this algorithm, a novel newton based power flow method with a direct factorization formulation of jacobian matrix is proposed for radial distribution systems

    通過對前推回推法求解過程的數學演化，導出一種新的牛頓類型的演算法及其雅可比矩陣直接分解公式。
  11. The main object of this paper is to design a diagonal impeller, which requires small size and high rotating speed the first step of design is to solve the radial distribution of parameters at the inlet and outlet of the blade, such as pressure, temperature and velocity. and then, according to the radial distribution, we can design the diagonal impeller blade. blade elements are defined on a cone, which pass through the blade edge streamline location

    其設計思想是採用準三維設計方法，先進行二維流場計算，在葉片軸向間隙中設立計算站，應用數值計算方法計算葉片前後緣的壓力、溫度、速度等參數沿葉高的分佈，然後根據這些參數，選取若干個回轉面進行葉型設計；再將各回轉面上得到的基元葉型沿某一個積疊軸積疊起來形成三維葉片，最後對得到的三維葉片進行試驗，並對實驗結果進行分析比較。
  12. Radial distribution of the static pressure at stator surface was measured in a rotor - stator disk cavity with centric inflow and two outflows

    摘要中心進氣具有兩個出口的旋轉盤系統中靜盤表面沿半徑方向的靜壓分佈由實驗方法獲得。
  13. Tests on a practical radial distribution system have shown that, the proposed method is as robust as, but more efficient than the back / forward sweep method

    文中以一個實際的中等規模配電系統為例，分析、比較前推回推法、導出的近似牛頓法、經典牛頓法等的收斂性和計算速度，證實上述研究結論。
  14. Atomic radial distribution function

    原子徑向分佈函數
  15. Some polymeric grin lenses have been prepared by this way in cllapter 4, the radial distribution of refractive index of the prepared lenses is measured by the shearing interference method, which provides experimental support for the manufacture of micro - lenses

    第四章主要對本課題組已製成的聚合物grin球透鏡的折射率分佈進行了測量，對測量結果進行了分析，並對制備過程中工藝條件的改善提出了一些可行性建議。
  16. Radial distribution function of liquid by x - ray diffraction

    射線衍射獲得的液體徑向分佈函數
  17. Radial distribution function

    徑向分佈函數
  18. 1 ' hlxiugh tracing large of h2, we got tlle axial alld radial distribution gfhydrogen storage il1 t1le cnt

    給出了平衡態下氫分子沿軸向、徑向分佈的理論解釋。
  19. Two network analysis and operation algorithms for balanced radial distribution systems, called forward - backward sweeping method of power flow solution and real - time control of capacitors installed on distribution systems, are presented in this thesis. distribution networks have characteristics such as mesh network on planning and radial networks on operation. the radial topology of distribution networks has been fully exploited such that a systematic branch and node numbering scheme is utilized to achieve storage and computational economy

    本文對配電網路中電壓的調整，就電容器投切控制問題進行了深入的研究，在前人研究成果的基礎上，針對配電網路結構特點，提出了採用前推回推法計算配電網路潮流，對配電網路就地補償電容器的控制採用模糊控制技術，對全局優化控制採用逐次線性規劃演算法。
  20. Forward - backward method is usually used in radial distribution networks. in weakly meshed distribution networks compensation current method is used. it open the loops on some nodes, on the open points compensation currents are used to simulate the power flow before opening

    其中之一是採用配網潮流計算中常用的前推回推法計算輻射狀網路潮流，對於弱環網的處理時採用補償電流法，其思想是將環打開，在開環處以一電流源模擬開環前的狀態。
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