butterfly method 中文意思是什麼

butterfly method 解釋
蝶形孔型軋製法
  • butterfly : n 1 蝴蝶；蝶式，蝶形。2 〈比喻〉舉止輕浮的人〈尤指輕浮的婦女〉；游手好閑的人。3 【機械工程】蝶形...
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. In chapter 4 we discuss the design of the high speed and high performance vlsi and its imp1ementation, firstly we ana1yze and compare the features and ru1es of al1 kinds of fft algorithm, adopt complex radix 4 butterfly calcu1ation as basic alu, then discuss all kinds of process architectures, the design thoughts, rule, method, technique way, the characteristics of the design are r4 dit algorithm, pingpong ram design method and pipeline structure between stages. we also analyze the limited word length effect and the method to avoid overflow of the fixed points fft process, bring out the expandable platform mode

    第四章主要討論了高速高性能的快速傅立葉變換處理器的設計和實現，首先分析和比較了各種快速傅立葉變換演算法的特性和規律，提出基4蝶算的演算法具有最好的性價比，討論了順序、級聯、并行和陣列的處理結構，闡述了設計高速高性能快速傅立葉變換處理器時的設計原則、設計思路、所採用的技術路線，驗證並測試fft處理器，分析了定點fft處理過程由於有限字長效應所產生的量化誤差的范圍及防溢出控制辦法，提出了可擴展平臺模式。
  2. If applied experiential formula mechanically to calculate the dynamic moment of the tri - eccentric butterfly vavle, its errors for the results would be larger. the paper, by virtue of the postulate of flow with fixed constant, eddiless of ideal liquid, calculated laplace equation by finite difference method in rectangular coordinates, gained pressure distribution on the butterfly disc section, thereby figured out its dynamic moment under each opening angle and the method was feasible for calculating dynamic moment of symmetry or not, designed the program and described the curve of dynamic moment. finally, the paper infered their laws

    採用經驗公式來計算三偏心蝶閥的動水力矩，誤差比較大，本文根據三偏心蝶閥的結構特點，利用理想流體的定常、無旋流動的假定，用有限差分法在直角坐標系中求解拉普拉斯方程，得到蝶板截面上的壓力分佈，從而計算出蝶板在各個開度下的動水力矩，設計出了求解的程序，給出了程序運行的結果並進行了數據處理從而得到了動水力矩曲線，總結了它的變化規律。
  3. In succession, we should test whether the rotation center of the tri - eccentric butterfly vavle was right, brought forward a method to test the seal fit interference, designed the program about the seal fit interference and gave the corresponding results which the program was run

    對於三偏心蝶閥回轉中心的選擇是否合適，本文提出了一個檢查密封副干涉的方法，設計了相關的程序並進行了驗證，給出了程序運行的部分結果。
  4. 4 ) the circle data partition method of spectral adjoint model is put forward. the method increases 30. 7 % of parallel computing ratio under distributed - memory environments with 32 - processors. the butterfly - net data redistribution of spectral adjoint models is put forward

    4 ）提出了譜離散伴隨模式并行計算的有效循環數據分配方法，採用該方法在某分散式存儲并行計算機上32臺處理機并行計算效率提高了30 . 7 。
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