繞射結 的英文怎麼說

中文拼音 [ràoshèjiē]
繞射結 英文
diffraction knot
  • 繞 : 繞名詞1. [書面語] （彎曲） bend2. （姓氏） a surname
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
  1. And our demo nicely shows the motion of water waves : reflecting, intervening, circumambulating

    實驗結果表明，水波的運動是逼真的。我們成功地模擬了水波的反射、疊加和繞射現象。
  2. Lc test method for crystallite size of calcined petroleum coke by x - ray diffraction

    用x -射線照繞射法測定煅燒石油焦中結晶尺寸
  3. Problems of diffracting effects of nonlinear water waves on porous structures

    可滲透型結構的非線性水波繞射作用問題
  4. Problems on diffraction of second - order multicolored water wave by porous structures in stratified ocean

    層化海洋中二階多色波對可滲透結構的繞射問題
  5. 2. it simplified the tlp as vertical floating arrays, did some work about second - order nonlinear diffraction wave force on tlp

    2 .將結構簡化為直立浮筒柱群，研究了平臺本體上波浪的二階非線性繞射問題。
  6. In order to obtain the complex rcs of the target quickly in high frequency band, the graphical electromagnetic computing software, greco, is used. the modification of the computing kernel code is presented. the judgement of edges of complex targets is more sufficient and the computation of edge wave based on physical theory of diffraction ( ptd ) is more exact after the modification

    為了可以準確地預估雷達目標的rcs ，我們對于航天部207所的圖形電磁計算軟體（ greco ）進行了進一步的開發與包裝，用borland公司的c + + builder開發了更加易於使用的基於windows操作系統的新版greco ，並且在考察了原有的greco計算內核之後，結合計算機圖形學方面的理論，對greco的內核代碼進行了改進，整體上使得邊緣繞射場的計算結果更加準確。
  7. The computer speed is speeded up. the numerical results of the present models are in agreement with the theoretical solution and those of physical models. systematical numerical tests show that the present models can reasonably simulate the wave transformation, such as shoaling, refraction, diffraction, reflection, effect of currents and so on

    比較詳細的模型驗證與應用表明，模型的數值模擬結果與解析解、物模實驗值吻合良好；可以較好地模擬波浪傳播過程中的淺水變形、折射、繞射和反射等多種現象；能正確合理地反映水流對波浪傳播的影響。
  8. Abstract : the effects of airfoil geometric parameters on wing " s spacial and polarized scattering characteristics have been systematically revealed. the results of the study indicated that the calculating value of diffraction from trailing edge by using the formula of the straight wedge is very far from experimental results for vertical polarization, and the contribution of thickness of the trailing edge to scattering must be considered in the calculation. the scattering peak of leading edge depends only on radius of airfoil for horizontal polarization. but for vertical polarization, it depends on maximum thickness and the location of maximum thickness. engineering formulas for evaluating all scattering peaks were given in the paper. it is important for the design of low - rcs wing

    文摘:系統地揭示了翼形幾何參數對機翼的空間散射特性、極化散射特性的影響規律.研究發現，在垂直極化狀態下用理論尖劈公式計算機翼后緣繞射的計算結果與實驗結果相差甚遠.提出在垂直極化狀態下機翼后緣繞射的計算必須將后緣厚度考慮在內的見解.對於水平極化，前緣散射波峰只與前緣半徑有關；而對於垂直極化，前緣散射波峰與翼形最大厚度以及最大厚度位置有關.給出前後緣散射波峰的工程估算公式，為低雷達散射截面（ rcs ）機翼設計提供依據
  9. Standard test method for determination of relative crystallinity of zeolite zsm - 5 by x - ray diffraction

    X射線繞射法測定沸石zsm - 5相對結晶度的標準試驗方法
  10. This technique combines the edge - based finite - element method with physical optics ( po ) and physical theory of diffraction ( ptd ). the hybrid technique is applied to compute the scattering fields from the electrically large bodies with cracks and cavities on their surfaces. it is also used to analyze the scattering characteristics of microstrip antennas residing in a cavity mounted on metal objects with finite sizes

    本文採用edge - basedfem為基本方法，結合物理光學法（ po ） 、物理繞射理論（ ptd ） 、邊界積分方程（ bi ） 、區域分解技術（ ddm ）和完全匹配層（ pml ）吸收邊界條件等求解方法構成的混合方法，對電磁散射和輻射問題進行了研究，主要包括以下內容：提出了一種edge - basedfem與物理光學方法和物理繞射理論相結合的混合方法? fem po - ptd方法，並將該混合方法應用於帶有腔體或槽縫的電大尺寸導體目標的電磁散射特性分析和位於有限導體目標上的背腔式微帶貼片天線的電磁散射特性分析。
  11. Incremental length diffraction coefficients ( ildc ) is adopted to calculate the contribution of edge diffraction. in order to improve the accuracy of calculation, multi - scattering is discussed, based on the two former contributions and ray - tracing method. geometrical optics ( go ) and physical optics ( po ) are used to calculate the multi - reflection between facets and facets

    對于鏡面反射採用物理光學法計算其散射貢獻，結合基於面元的目標模型的表示，採用離散的積分形式，將面電流積分化簡為線積分，簡化計算復雜度；對于邊緣繞射，運用增量長度繞射系數理論計算目標邊緣繞射場；在多次反射中，則以光線跟蹤方法為基礎，採用幾何光學、物理光學相結合的方法分析考慮多次散射場。
  12. The numerical model is tested by computing wave field for several examples of laboratory experiment, and agreement between model results and available experimental data is found to be quite reasonable, which demonstrates the model ' s ability to simulate wave shoaling, refraction, diffraction and reflection

    用多個實驗地形對本文模型進行了驗證，計算結果與實測數據吻合很好，反映了本文模型可以較好地模擬波浪傳播過程中的淺水變形、折射、繞射和反射等波浪變形現象。
  13. On the basis of this analysis the radiation and diffraction forces of the ship are calculated using these three methods and compared. at the same time vertical ship motions in regular wave are solved by these three methods. the results are compared to test each method ' s availability and suitability, thus the theoretical basis of optimize design of sea - keeping performance is provided

    分別介紹了二維切片法、高速細長體理論和三維理論的基本原理，分析了三種不同方法各自的適用性，在此基礎上分別計算了船舶的輻射力和繞射力，比較了這三種方法的計算結果，為不同營運目的的船舶耐波性計算提供陜速有效而實用的計算方法；同時應用三種方法計算了船舶在規則波中的垂向穩態運動響應，比較三種方法的計算結果，測試各種方法的有效性和適用性，為船舶耐波性的優化設計提供原始的理論基礎； 2
  14. Finite difference method can deal with regular boundary conditions. in this paper, we discrete the water domain into rectangular meshes, and simulate the propagation, reflection and diffraction of water waves. we just specify waves source, the movement of water waves can be simulated automatically

    有限差分方法能夠處理具有規則邊界水域的水流現象，在本文中，我們把求解的水域離散成結構矩形網格，對水流的折射、反射、繞射等水流現象進行了動畫模擬，我們僅僅指定產生水流動畫的波源，水流動畫的細節均由數值方法產生，不需要人工的干預。
  15. On the basis of the study of the characteristics of diffracted wave produced during the vibration propagation along the fissures, in association with practical example, the paper introduces the features of prospecting the depth of fissures of structural mass by using the seismic method

    該文在研究振動沿裂縫傳播時所產生繞射波的特徵基礎上，結合實例，介紹了運用地震法探測結構體裂縫深度的方法特點。
  16. Abstract : on the basis of the study of the characteristics of diffracted wave produced during the vibration propagation along the fissures, in association with practical example, the paper introduces the features of prospecting the depth of fissures of structural mass by using the seismic method

    文摘:該文在研究振動沿裂縫傳播時所產生繞射波的特徵基礎上，結合實例，介紹了運用地震法探測結構體裂縫深度的方法特點。
  17. Problems of the second order multicoloredwater wave diffraction on offshore structures

    二階多色波對結構的繞射問題
  18. And then a hybrid technique combining ddm with eb - fem, po, and ptd is given for the analysis of electromagnetic scattering by electrically large bodies with deep cavities

    在此基礎上，將ddm與eb一fem 、物理光學法、物理繞射理論相結合，分析了帶有深腔的電大尺寸三維導體目標的電磁散射特性。
  19. In addition, conventional surface analytical tools, i. e., leed and aes, are also equipped to provide surface information of long - range order and elemental identity

    傳統的表面分析設備如低能電子繞射儀（ leed ）及歐傑電子能譜儀（ aes ） ，則用來決定晶體表面的長程結構和元素成份。
  20. Rcs of facets of targets coated ram was resolved by combining impedance boundary condition ( ibc ) and geometric optics ( go ) and rcs of those edges were approximated by computing the rcs of edges of impedance wedge through method of equivalent currents

    其中，塗覆目標面元的散射場是通過結合阻抗邊界條件和幾何光學法（ go ）而得到；而塗覆目標棱邊的散射場則是通過等效電磁流法求解阻抗劈的邊緣繞射場近似得到的。
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