流域演算 的英文怎麼說

中文拼音 [liúyùyǎnsuàn]
流域演算 英文
watershed routing
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 域 : 名詞（在一定疆界內的地方; 疆域） land within certain boundaries; territory; region
  • 演 : 動詞1 （演變; 演化） develop; evolve 2 （發揮） deduce; elaborate 3 （依照程式練習或計算） drill;...
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 流域 : [水文] watershed; basin; drainage area; catchpit; catchment area; drainage basin; feeding ground;...
  • 演算 : perform mathematical calculations; calculation; calculus演算器 exerciser
  1. Vsp is both a pivotal tache in logistic distribution optimization and indispensable in electronic commerce. it can increase logistic economic benefit and realize logistic rationalization. the systemic study on the theory and method of vsp is the base on the growth of logistic intensivism, the establishment of modem chain of command, the development of its and ec. now, the problem is not only applied to the field of auto transportation, but also to ship avigation communication electricity industry management computer application etc. the algorithm has been applied into many combinatorial optimization problems such as the trainman ' s shift arrangement in avigation the optimization design of cargo arrangement in ship company

    對貨運車輛進行調度優化，可以提高物流經濟效益、實現物流科學化。對貨運車輛調度優化理論與方法進行系統研究是物流集約化發展、建立現代調度指揮系統、發展智能交通運輸系統和開展電子商務的基礎。目前，問題的形式已有很大發展，該問題以不僅僅局限於汽車運輸領域，在水運、航空、通訊、電力、工業管理、計算機應用等領域也有一定的應用，其演算法已用於航空乘務員輪班安排、輪船公司運送貨物經過港口與貨物安排的優化設計、交通車線路安排、生產系統中的計劃與控制等多種組合優化問題。
  2. In order to improve the existing methodology of carpool information retrieval, on the basis of the region to region algorithm and by the use of the graph theory, an algorithm based on traffic network and its complexity analysis were presented

    低效率的信息交流方式制約了合乘出行方式的發展，針對現有合乘信息檢索方式的不足，在區域區域匹配演算法的基礎上，引入圖的概念，提出了一個基於交通路網的路徑匹配演算法，並給出了演算法復雜度分析。
  3. The method to resolve the mcge issues based on webservice is proposed. the design of the modern catchment geomorphic evolution model service mcgems, and integration between mcgems and wcs are given

    Net平臺開發實現了mcgems wcs以及mcgems與wcs服務集成，完成了基於服務模式的小流域地貌演化計算。
  4. Application of the c. o. clark unit hydrography to the flux computation in a small scale basin of the loess plateau

    單位線在黃土高原小流域匯水演算中的應用
  5. In recent years, plentiful and substantial fruits achieved by the lb method in simulations of hydraulics, multiphase flows, flows in porous media and heat transfer as well as magnetohydrodynamics, have revealed a broad perspective of application of this method, it will become a powerful competitor to the conventional approaches. in order to absorb the recent achievement in theory and application of the lb method, explore new ways in hydraulic computation to promote the development of practice, some work is car ried out in this thesis, as following : advances in the theory research and application, deductive process of the d2q9 model and some other commonly used models of the lb method are summarized. based on the hydrodynamic and general boundary conditions, a new joint boundary condition is presented, it integrates advantage of the two conditions above and obtains very good results in dealing with all kinds of boundaries of flow fields

    為了消化和吸收近年來lb方法在理論和應用方面的新成果，探索在水力計算方面的新途徑以促進lb方法實用化的發展，本文進行了下列研究工作：綜述了lb方法在理論研究和實際應用方面的新進展，以及d2q9模型的推導過程和其他一些常用的模型；在水動力邊界條件和通用邊界條件的基礎上提出了一種新的聯合邊界條件方法，它綜合了上述兩種邊界條件的優點，在流場的各種邊界處理中取得了非常好的效果，經過模塊化的處理以後這種邊界條件具有更好的實用性；針對均勻網格的lb方法計算效率較低的不足，提出了雙重網格的latticeboltzmann方法，通過二維poiseulle流動、后臺階流動和渠道方槽流動三個算例的模擬，證明這種方法能夠明顯地提高流場模擬的計算效率；此外，根據復雜區域流場的特徵提出了latticeboltzmann方法的分塊-耦合演算法，利用lb方法的計算特性實現塊與塊之間的數據交換，充分利用計算資源提高計算效率，通過對「 t 」型、 「十」型和「 x 」型分岔管道流場的模擬，展示了這種演算法的特徵和優點，以及它所具有的應用前景。
  6. 2. shadow plays an important role in 3d scene. studying and comparing different shadow algorithms, emphasizing on two prevalent algorithms, shadow mapping and shadow volume

    陰影效果對于增強三維場景的真實感有著非常重要的作用，本文研究和比較了各種陰影生產演算法，重點討論了目前生成陰影的兩種主流演算法? ?陰影映射演算法和影域演算法。
  7. With this understanding, the advancing analysis method of the steady - state voltage stability integrated the continuation power flow analysis, the system jacobi matrix eigenvalue structure analysis and the correlative sensitivity analysis, provided the comprehensive and veracious informations about the steady - state voltage stability of power system under the future operating state, these informations - included the margin of stability, the weak buses, the crucial branch and the crucial generator

    提出了將連續潮流演算法與系統jacobi矩陣特徵結構分解法以及相關的靈敏度方法相結合的靜態電壓穩定預測分析方法，這種方法可以提供關于系統在未來運行狀態下的靜態穩定性信息：系統穩定裕度、系統中的薄弱區域、關鍵支路與關鍵發電機。
  8. Compared with traditional numerical methods such as the fem, fdm, etc, the lb method has several important features, including : simplicity in algorithm, easily programming, direct calculation of pressure from a state equation and amenability to simulate all kinds of flow field with complex boundaries, it also has much advantage in the respect of parallel computation because of its regional evolution

    與傳統的計算方法如fem 、 fdm等相比， lb方法具有演算法簡單、編程容易、壓力可以通過狀態方程直接求解、能夠模擬各種復雜邊界的流場等優點，並且計算的局域性使其在并行計算方面也具有很大的優勢。
  9. We investigate finer time scale statistical properties of this traffic, including burstiness, periodicity, and synchronization. utilizing the data gathered by our simulator, we compared the results with our prediction, after that, we investigated the root cause of a specific networking traffic pattern, under various network configuration and policies. the importance of our work is not only analyzing the cause of each traffic pattern, but also providing a beneficial formal method for future research

    在實驗結果的分析過程中，我們根據當前流行的網路拓撲建立了模擬路由試驗環境，特別針對lsa的突發性、周期性和同步流量的時域特徵進行了觀察，不僅探究了三種重要lsa流量的發生機理以及這些流量的變化對整體路由效率的影響，比對了我們的預測與最終的實驗結果，深入研究了統計圖表裡各種異常情況的成因和路由協議採用不同演算法和策略以後對整體路由環境的影響。
  10. Due to the importance of the accuracy of the time - domain impedance matrix elements, the techniques by which treating of the singular integrals and near singular integrals arose from the tdie - mom solving process are analyzed in detail, and these techniques are utilized to solve the tdie. in the end, using triangle patches discretizing arbitrarily 3 - d dielectric objects and metal - nonmetal composite objects surface and utilizing spatial rwg and temporal triangular bases, the tdie are solved by mot algorithm

    最後，分別對三維介質目標、金屬非金屬組合目標散射體表面用三角貼片離散，並在空間上採用rwg基函數，在時間上採用三角型時間基函數、利用阻抗元素的精確演算法計算出阻抗矩陣，再運用mot法分別求解了介質體目標，金屬非金屬組合目標的時域積分方程，並分析了金屬非金屬組合目標分界面上的等效電流與等效磁流的特性。
  11. Neural network control is an important mode of intelligent control, and it is widely used in branches of control science, first, the architecture and the learning rule ( error back propagation algorithm ) of multiplayered neural network which is widely used in control system are presentedo especially, the paper refers to the architecture of diagonal recurrent neural network and its learning algorithm - - - - - recurrent prediction error algorithm because of its faster convergence with low computing costo next, before introducing the neural network control to the double close loop dc driver system, the controllers of current and velocity loop are designed using engineering design approach after analysis of the system, simulation models of the system are created

    神經網路控制是智能控制的重要方式之一，它廣泛應用於自動控制學科各個領域。本文首先敘述了控制系統中常用的多層前饋網路結構及演算法（ bp演算法） ，特別提及了能夠較好描述系統動態性能的對角遞歸神經網路和在用遞推預報誤差演算法訓練drnn時取得了較快的收斂速度。其次，應用工程方法分析設計了tf - 1350糖分離機的電流、轉速雙閉環直流調速系統的控制器，作為引入神經網路控制的設計基礎，並建立了系統的模擬模型。
  12. Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa

    本文首先介紹並分析了橢圓曲線密碼體制的優點及研究現狀；其次研究了橢圓曲線密碼體制的基本理論；第三，分析了橢圓曲線密碼的安全性並介紹了密鑰共享，加密，數字簽名等橢圓曲線密碼體制；第四，深入研究了特徵為2的有限域f _ 2m中的元素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法，並對hankerson等人提出的多項式基下的乘法運算的快速演算法作了改進，而且在實驗的基礎上不僅分析研究了f _ 2m域中元素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能，還對這兩種基表示下的f _ 2m域中元素運算效率的優劣作了比較和研究，所得的結論可供在實現橢圓曲線密碼體制時參考；第五，研究了目前流行的計算橢圓曲線標量乘法的快速演算法，同時改進了固定基點梳形法，提高了整個系統的速度，並在實驗的基礎上分析研究了流行演算法的優劣；第六，實現了基於f _ 2m的橢圓曲線密碼體制的演算法庫，在我們的演算法庫中只需稍微改變便能實現基於任意尺寸的f _ 2m上的ecdh ， eces ， ecdsa等橢圓曲線密碼體制；第七，實現了兩條安全橢圓曲線上的橢圓曲線密碼體制，包括ecdh ， eces ， ecdsa 。
  13. In this paper, the common used encoding algorithms and basic finite - field opera - tions algorithms are introduced, and the decoding algorithms such as inverse - free ber - lekamp - massey ( ibm ) algorithm, reformulated inverse - free berlekamp - massey ( ribm ) algorithm and modified euclidean algorithm are analyzed in great detail. based on the ribm algorithm, a modified structure and a pipelined decoder scheme are presented. a tradeoff has been made between the hardware complexities and decoding latency, thus this scheme gains significant improvement in hardware complexity and maximum fre - quency

    本文簡要介紹了有限域基本運算的演算法和常用的rs編碼演算法，詳細分析了改進后的euclid演算法和改進后的bm演算法，針對改進后的bm演算法提出了一種流水線結構的譯碼器實現方案並改進了該演算法的實現結構，在譯碼器復雜度和譯碼延時上作了折衷，降低了譯碼器的復雜度並提高了譯碼器的最高工作頻率。
  14. All the methods can calculate the flood based on the storm data. the software can be used in henan province. additionally, the rational formula method and the plain drainage method can be used in other regions near henan province, even farther regions

    軟體包括推理公式法、單位線法、平原排澇公式法三種由暴雨資料推求設計洪水的計算方法，除了適用於河南省中小流域設計洪水外，推理公式演算法、平原區排澇公式演算法也可在鄰近省市和更大的范圍內推廣使用。
  15. The inversionless bm algorithm in rs decoder is implemented with serial mode, which avoids the inversion computation and only needs 3 finite - field multipliers. thus, the complexity of hardware implementation has been mostly reduced. a 3 - level pipe - line processing architecture is also used in the hardware and the coding circuit in rs coder is optimized by using the characteristics of the finite - field constant multiplier

    Rs解碼器的設計採用無逆bm演算法，並利用串列方式來實現，不僅避免了求逆運算，而且只需用3個有限域乘法器就可以實現，大大的降低了硬體實現的復雜度，並且因為在硬體實現上，採用了3級流水線（ pipe - line ）的處理結構。
  16. Range - doppler algorithm is a one dimensional algorithm. wavenumber domain algorithm and chirp scaling algorithm are two dimensional algorithms. this paper discusses their theory and processing flow

    Range - doppler演算法是一種一維處理演算法，波數域演算法和chirpscaling演算法是二維聯合處理演算法，本文討論了它們的原理及流程。
  17. Some detailed arithmetics of the codification method in the dwm is presented in an appendix

    給出了數字流域模型的河網編碼中若干具體問題的演算法。
  18. Analyze the linear dipole array with uniform element spacing using the method of moments ( mom ), derive the analytical expression for the recovered signal with the direct data domain method, demonstrate the effect of the mutual coupling on the performance of the antenna array by examples, the degradation of the system caused by the mutual coupling is simulated and analyzed in two different electromagnetic environments such as the weak and strong interference

    用矩量法計算了幾個信號同時照射時對稱陣子均勻直線陣的電流分佈，用直接數據域演算法推導了此接收陣列的恢復期望信號的表達式，舉例說明了互耦對陣列天線性能的影響，數值模擬了在弱干擾和強干擾下，互耦造成系統性能下降的情況並分析了原因。
  19. At present, the calculation of the modern catchment geomorphic evolution mcge issues is mainly solved by systems integration, which results in function redundancy, lower efficiency and more difficult modification

    基於webservice技術，提出採用服務模式實現小流域地貌演化問題計算的方法。分析了小流域演化模型服務mcgems以及mcgems與wcs集成設計過程，給出了mcgems的wsdl描述。
  20. The main work is as follow : the pater makes use of vanguard genetic algorithms in image segmentation, uses vanguard genetic algorithms to get the image threshold. using this method we may get different grey vehicles from the background exactly. used the support vector machine theory to conduct the vehicles automatic sorting simulation research, the simulation result had proven this method could quite be accurate carries on the vehicles type the recognition ; improved based on the background automatic renewal hypothesized examination region algorithm, enhanced timeliness and the accuracy which the vehicles examines ; and to has carried on the specify based on the hypothesized examination region imagery processing algorithm realization ; in the paper also introduced withdraws the algorithm based on the gradation continuous movement vehicles characteristic to carry on the vehicles the characteristic to withdraw as well as to use the localization method which colored filter same gradation chart processing unifies to carry on the realization method which the vehicles license plate locates

    本文根據智能交通控制與模擬對于交通流量、車輛到達率、車輛速度等交通信息檢測的需求，基於視頻圖像進行了交通信息處理的演算法研究與實現，主要工作包括以下幾個方面:將先鋒遺傳演算法應用到圖像閾值分割中，利用先鋒遺傳演算法尋求全局最優閾值，可以比較準確的將圖像中不同灰度的車輛從背景中分離出來;採用支持向量機理論進行了車輛自動分類的模擬研究，模擬結果證明該方法能夠比較準確的將車輛的類型進行識別;改進了基於背景自動更新的虛擬檢測區域演算法，提高了車輛檢測的實時性和準確性;並對基於虛擬檢測區域的圖像處理演算法實現進行了詳細說明;論文中還介紹了基於灰度連續性的運動車輛特徵提取演算法進行車輛的特徵提取以及採用彩色過濾器同灰度圖處理相結合的定位方法進行車輛牌照定位的實現方法。
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