波的對比 的英文怎麼說

中文拼音 [bōdeduìbǐ]
波的對比 英文
correlation of events
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  1. The experimental results show : the flattop phenomenon on the diode voltage pulse was very apparent for using the carbon fiber cathode, that is to say, the pulse duration of the diode voltage was widened ; moreover, under the condition of the same power of microwave, the pulse duration of the out - put microwave was prolonged by about 30 % ; the peak power of the microwave was enhanced by 3db

    通過在裝置上做的兩種陰極的對比實驗，結果顯示:碳纖維陰極的使用，改善了電子束質量，使輻射微波的脈寬增加了30 %以上，輻射主瓣方向上的功率密度提高了3db以上，頻譜分佈較純凈，實現了微波的高效輸出。
  2. A comparison between microphysical characteristics derived from 3 - d cloud model and the results from trmm tmi and pr products show that the selected cloud model gives a relatively realistic hydrometeor profiles

    由三維雲模式得到的微物理特徵與由微波圖像儀tmi和pr產品提供的結果之間的對比表明，所選用的雲模式能夠給出相對真實的水汽凝結體廓線。
  3. Their encircling and undulating movement contrasts pleasurably with the straight trunks of erect trees

    它們那種盤繞和波動的線條，和樹木挺直的樹身形成了有趣的對比。
  4. By comparing difference in compression modulus before and after grouting and detection of seismic waves, the authors concluded that the seismic wave method is a good method for detecting effects of grouting in highway slopes

    通過對坡體在灌漿前後彈性參數的對比分析，說明用地震波法檢測公路邊坡灌漿加固效果是一種較好的方法。
  5. At first we improve the methods of iris image preprocessing, including an efficient arithmetic of evaluation iris images, an improving method of locating iris, calibrating iris image by the translation of coordinate and the circular shift of code, a eatimate of the background illumination by bicubic spline, and the image enhancement by the dual tree complex wavelet transform. next we designed the recognition arithmetic based on the location of the local maxima of the wavelet transform modulus. in the thesis lots of simulation are performed by means of matlab and visual c + +

    首先改進了虹膜預處理方法，實現了一種快速高效的虹膜質量評價演算法;設計了一種改進的兩步虹膜定位演算法，準確的定位了虹膜的內外邊界;利用坐標轉換和編碼的循環移位實現了對虹膜圖像的配準;利用雙三次樣條函數擬合虹膜圖像背景，去除了非均勻光照對虹膜識別的影響;使用二分樹復數小波方法增強了虹膜圖像的對比度;在識別演算法方面，本文設計了一種「基於小波模極值點位置的虹膜識別演算法」 。
  6. In this paper, the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image, the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter, the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape, perimeter, area, diameter, complexlity, longest feret diameter, shortest feret diameter etc, are extracted. this technique is applied in measurement of pearl powder ' s particle size

    本文根據粒度圖像的特點，採用非線性對比度增強處理改善顆粒顯微圖像的對比度；對多種閾值分割方法進行比較，分析了它們的性能和用於粒度圖像的適用性，在此基礎上提出了一種基於梯度圖像的動態閾值分割方法；對獲取的顆粒二值圖像進行形態濾波和空洞填充，設計了識別演算法去除凝聚體；對重疊不太嚴重的粘結顆粒採用了兩種基於數學形態學的分割演算法；提取了周長、面積、粒徑、復雜度、最長feret徑、最短feret徑等大小和形狀特徵參數，對珍珠粉等粉體粒度進行了測量。
  7. This paper systematically discussed the fundamental, characteristics, research status and equipment of microwave sintering, and introduced the preparation and development of sintered ndfeb magnets, on the basis of which the effects of the parameters on the heating rate and sintering temperature were investigated. and by means of optical metallurgical analysis, x - ray diffraction analysis and the measurement of density and magnetic properties, the paper compared the properties and technology of ndfeb magnets sintered in microwave magnetic field with that of magnets sintered in conventional heating process

    本文系統論述了微波燒結基本原理、特點、研究現狀和燒結設備，介紹了燒結ndfeb制備工藝和發展，在此基礎上研究了微波磁場燒結ndfeb永磁材料過程中各因素對升溫速率、燒結溫度的影響，並通過金相顯微分析、 x射線衍射分析、密度及磁性能測試等手段，將微波磁場燒結的ndfeb磁體與常規燒結的磁體進行了工藝與性能的對比分析。
  8. At the same time, being compared with application of the model for non - linear long waves, the knowledge of characteristics of wave propagation models in near shore area is deepened further

    並通過和非線性長波的數學模型在具體應用中的對比分析，進一步深化了對近岸水域波浪傳播數學模型特點的認識。
  9. The linear darkness transform method is used to increase the contrastiveness of pictures ; the improved mid - value filtering algorithm and local average method are adopted to protect the edge as much as possible on the basis of noise elimination

    採用線性灰度變換等方法對圖像進行增強，使圖像的對比度擴展。採用改進型中值濾波法和多圖像平均法，在去除了噪聲的基礎上盡可能的保護了邊緣。
  10. Comparative price movements

    物價波動的對比
  11. Industrial structure school thinks that enterprise must inspect the surroundings when it works out the competitive strategy, and resource school thinks that internal surroundings is more important than external surroundings. resource school pays attention to the accumulation of strategy resource enterprise need. then resource school forms a sharp contrast with industrial structure school, which pays attention to external surroundings

    波特為代表的行業結構學派認為企業在制定競爭戰略時要與企業所處的環境相聯系；以普拉哈拉德和哈默爾為代表人物的資源學派認為在制定戰略時，內部環境比外部環境更重要，比較注重製定戰略所需資源的積累，和行業結構學派側重於外部環境形成鮮明的對比。
  12. The photoabsorption properties of three kinds of br molecule films ( the wild - type br, the chemical enhanced br, the gene - variant br ) are investigated by measuring their absorption spectrum. using the gene - variant br film as a light - modulator, by the experiment of write - readout image and the analysis of image contrast, the light - modulated property of the modulator is studied. the relationship between wavelength of the modulated light and response time of the modulator is discussed emphatically

    本論文概述了細菌視紫紅質分子結構、功能特性及研究發展的歷史與現狀，介紹了目前已有的和潛在的一些重要應用，通過對吸收光譜響應特性的測試研究了三類br分子薄膜（野生型，化學修飾型，基因修飾型）的光吸收特性，通過圖像的記錄/讀取實驗及圖像的對比度分析探討了基因改性型br分子薄膜的光調制特性，著重研究作為一個光調制器件對調制波長和調制時間的響應特性。
  13. Surface wave velocity detecting tests and dry density detecting tests by pit replacement method were conducted respectively for the transient material ( a ) and main rock - fill material ( b ) used in the construction of concrete - faced rock - fill dam of shuibuya project

    摘要以水布埡面板堆石壩施工中的過渡料（ a ）和主堆石料（ b ）為主要檢測對象，分別進行了面波波速和試坑置換法干密度的對比檢測試驗。
  14. Even with the new kind of display, correlation of reflections is not always as simple as it may appear.

    即使採用這種新型顯示方式，反射波的對比往往亦非易事。
  15. The contribution from starlight ( measured at 3. 6 microns ) has been subtracted from the 5. 8 and 8 - micron images to enhance the visibility of the dust features

    為增強塵埃結構的對比度，來自星光的輻射（ 3 . 6微米波長所表示的）已從5 . 8和8微米的圖象上扣除了。
  16. In this dissertation, the mathematic model of optically controlled phased linearity array is established by basic theory of phased array radar. the problems of instantaneous bandwidth of ocpar and subarray number are researched, the relationship between the excursion of the direction pattern and subarray number, main lobe stretched - out of the direction pattern and bandwidth, side - lobe level of the direction pattern and subarray number, pulse compression and bandwidth, pulse compression and subarray number is analyzed. after corresponding simulations are done, a summary of advantages of ocpar compared with the traditional phased array radar is presented

    針對x波段信號，仔細研究了光控相控陣的瞬時帶寬問題和子陣數問題，分析了光控相控陣列方向圖偏移與信號帶寬及子陣數的關系，光控相控陣列方向圖主瓣展寬與帶寬的關系，方向圖旁瓣電平與子陣數的關系，脈沖壓縮與信號帶寬及子陣數的關系，完成了相應的模擬，通過與普通相控陣的對比，總結出了光控相控陣相對于傳統相控陣的巨大優勢。
  17. ( 3 ) result is given from the oscilloscope and compared different scheme

    （ 3 ）根據示波器實測結果給出了方案的對比以及窄脈沖信號結果。
  18. After the implementation of the 2 - d gaussian filters, blood vessels are clearly extracted from the background

    經二維高斯濾波器的模板匹配后，血管從背景中顯現出來，取得較令人滿意的對比度和清晰度。
  19. The text compares experiment data with the selected theory direction fig and modifies the equal value and standard difference of each segment i n the se i ected wave w i dth d i r ect i on f i g by us i ng the re i at i ve i y between the statistical equal value and standard difference, then makes use of the controls the correlation time to real ize the signal undulate

    通過實驗數據與選定的理論方向圖的對比分析，利用統計出的均值和標準差的相對量，對給定波束寬度的方向圖每段的均值和標準差進行修正。然後利用相關特性，通過控制相關時間，以達到能夠控制信號起伏的目的。
  20. Using rs can rapidly finish the ecological investigation in different scales and analysis the ecological environment information in different period that it " s difficulty with general investigation, with its characters of multiplatform, multiband, multitemporal and its macroscopic and integrality. and when collecting, saving, drawing, changing, showing and analyzing the huge spatial data, the cis act the very important function as a very effective computer tool

    遙感技術以其多平臺、多波段、多時相宏觀綜合的特點，能便捷地完成常規方法很難實現的大、中尺度的生態調查研究和進行不同時期的生態環境信息的對比分析；地理信息系統作為一個極為有效的計算機工具，則在收集、存儲、提取、轉換、顯示和分析這些容量龐大的空間數據時起到了非常重要的作用。
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