decomposition field 中文意思是什麼

decomposition field 解釋
分解域
  • decomposition : n. 1. 分解,分析,溶解,還原(作用)。2. 腐朽,解體。
  • field : n 菲爾德〈姓氏〉。n 1 原野,曠野;(海、空、冰雪等的)茫茫一片。2 田地,牧場;割草場;〈pl 〉〈集...
  1. Firstly, the research of this paper is focus on preflight global planning algorithm based on cell decomposition methods and artificial potential field methods

    本文首先對基於柵格法和人工勢場法思想的離線航跡規劃演算法進行了研究。
  2. The thesis introduces two basic thinking in field of optic character recognition ( ocr ), which is statistical - decision algorithm based on math characteristic of character and structure - decomposition algorithm based on physical characteristic of character

    文字識別的原理和方法介紹了文字識別領域採用的一般方法和策略? ?基於數學特徵的統計決策法和基於結構特徵的句法分析法。
  3. The feasibility of decomposition of transition firing sequence, the application of them in the detecting lfs and the reverse course of decomposition - synthesis are discussed. they provide theoretic basis for our algorithm in the field of petri net. supported by the above, two main part is included in the algorithm : at first, x is transacted according to the following method in order to get a set of xb named as basic vector of x which is the firing count vector of a directed path without circle if md is reached from m0 in the rg ( m0 )

    在變遷序列分解的指導思想下,我們的演算法主要通過以下兩步工作完成: ( 1 )首先對給出的已知條件中滿足狀態方程的n維非負整數向量進行處理,得到一組x的基礎向量x _ b ,使得在petri網的可達標識圖中,若存在一條由m _ o到m _ d的有向無環路,則x _ b為這樣的路上變遷引發序列的發生數向量。
  4. In this thesis, we follow the idea of the beamlet - domain wave field extrapolation methods to construct localized propagators. through comparative study of signal decomposition efficiency using different representation schemes, we select two groups of basic functions with simple expressions and good localization properties for wave field decomposition, propagation and imaging

    本論文通過對wft 、小波基、小波包,以及相關的框架理論等的分析比較,選擇了兩組形式簡單,且具有適宜於波場外推特性的基本函數集合來進行波場分解、傳播及偏移成像問題的研究。
  5. Films of the cnx nanotube were produced by thermal decomposition on fe - coated si substrates, and their low field emission properties have been investigated. a high - emission current density of 1. 28ma / cm2 for an applied field of 2. 54v / u m was achieved, implying cnx nanotubes have better electron field emitter properties than the films of carbon tubes and bcn tubes do under same experiment conditions

    860熱解乙二胺,在沉積有鐵催化劑的矽片上生長出cn _ x納米管薄膜,並進行了低場致電子發射特性測試,外加電場2 . 54v / m時,發射電流達到1 . 28ma / cm ~ 2 ,比相同實驗條件下制備出的碳管、硼碳氮管薄膜的場致電子發射性能優越。
  6. The singular value decomposition analysis between theanomal of monthly mean ozone over kunming and theprecipitation anomaly field in yunnan province

    昆明月平均臭氧總量距平與雲南地區月平均降水距平場的奇異值分解法分析
  7. The " wavefront " domain decomposition method developed above is used in the division of flow field domain. the quantity of physics variables on the " subjunctive " boundary elements needs mutual communication of subdomains during the simulation

    流場區域的劃分採用改進的「波陣面」區域分裂演算法, 「虛擬」邊界單元的物理量的計算由子區域之間相互通訊來完成,信息的發送方式採用「循環式」發送方式。
  8. The current trends of this field is to acquire the current density of dipole distribution rather than a few dipoles. based upon that, a new model was proposed - dipole layer localization method ( dllm ) : spherical dipole layer was used as source model, on which dipoles were distributed by equilateral triangles ; three concentric inhomogeneous sphere was used as head model, which contains scalp, skull and cortex with different conductance. the dipole distribution and scalp potential tomography were obtained with singular value decomposition ( svd )

    鑒于該領域的研究趨勢已從求取少數偶極子過渡到偶極子分佈密度的獲得,本文提出了新的模型? ?偶極面定位方法( dipolelayerlocalizationmethod , dllm ) :以等邊三角形均勻分佈的偶極子構成的偶極面(球面)作為源模型;包括頭皮、顱骨和皮層的三層同心介質球作為頭顱模型,運用奇異值分解來求解逆問題,從而獲得偶極子分佈和頭皮電位分佈,實現三維成像。
  9. Some characteristics of the measured wind pressure field were discussed, including distributions of wind pressure, the effects of shape ratio on total wind force coefficients, auto - and cross - power spectral density ( psd ) distributions of fluctuating wind pressure, characteristics of the proper orthogonal decomposition ( pod ) results of the measured wind pressure field, effects of reynolds number on wind pressure distributions, etc

    根據測量結果對殼體表面風壓場特性進行了分析,包括風壓系數、整體風力系數、脈動風壓自功率譜及互功率譜、風壓場本徵正交分解特性、雷諾數對殼體表面風壓分佈的影響等。
  10. The orthogonal decomposition are made respectly to the quasi - harmonic and multi - harmonic resources of gravity field in inverse gravimetric problem

    文章針對物理大地測量學反問題研究中的擬調和性重力場源及重調和性重力場源,將該研究中的理論核心正交分解定理予以具體實現。
  11. From 1920s up to now, various techniques and methods for wave field decomposition, propagation and migration / imaging have been well developed, such as the kirchhoff asymptotic method, frequency - wavenumber domain phase - shift and phase - shift - plus - interpolation methods, and the one - way wave equation based phase - screen and generalized screen methods, etc. wave field extrapolation in these methods is implemented based on the expansion of the wave field by sets of basic functions like spatial fourier harmonies, modes, and green ' s functions

    自上個世紀二十年代至今,波場分解、傳播與偏移成像技術經歷了將近一個世紀的發展,形成了多種不同的方法,如kirchhoff波動方程高頻近似解方法,頻率-波數域的相移( phase - shift )方法和相移-內插( pspi )方法,以及在混合域中基於單向波動方程的相位屏、廣義屏方法等。
  12. Finally, some discussions are taken on the crux and procedure of the orthogonal decomposition and some comments are made on the real significance of the restrictions from the inverse gravimetric problem to the resource of gravity field

    最後對具體實現場源正交分解的實際步驟、正交分解定理的實質、以及物理大地測量學反問題研究中關于場源函數的主要限制的意義予以評述。
  13. No incontinuous transition has been found at mean - field spinodal lines and the transition of precipitation mechanism transform gradually across the mean - field spinodal lines. precipitation mechanism at disordering instability line is non - classical nucleation and growth, similar to those in metastable region, and precipitation mechanism at ordering instability line is non - classical nucleation and growth, followed by spinodal decomposition, similar to those in instable region

    在不同的區域,粗化有不同的表現形式:在亞穩區,與(形核)長大交疊;在失穩區,與失穩分解交疊;在過渡區,與長大和失穩分解混合機制交疊。
  14. A least squares solution via singular value decomposition is used to solve the matrix equation. computations with synthetic data, where the near field of several typical antenna configurations are got over various geometric surface, illustrate the accuracy of the method

    為了證明本方法的計算準確性,我們給出了幾個不同輻射源在不同近場測量幾何面下的近場和遠場計算結果,與解析公式的計算結果相比較,一致性很好。
  15. 5. the correlation between 100hpa height field and 500hpa height field, precipitation field, sst field and apparent atmospheric heat source and moisture sink field are also studied by using singular value decomposition and the conclusions are similar to those by composite and correlation analysis

    ( 5 )用svd分解法研究了夏季100hpa高度場和夏季500hpa高度場,前期和同期海溫場、大氣視熱源和視水汽匯場的相互關系,得到了與前面用合成分析和相關分析類似的結論。
  16. The liquid crystalline field of the polymers could be well kept at room temperature and the initial decomposition temperature of all the polymers was higher than the clearing point

    所有聚合物的熔點都非常低,表明合成的一系列液晶聚合物非常容易進入液晶態,並且液晶場能夠很好地保存到室溫。
  17. Organism decomposition rules of msw are generalized and an equation to evaluate the variation of organic substance with time ( depth ) is proposed at the first time in this thesis. the equation is verified when compared with the results from field - test

    本文總結了填埋體有機質的分解規律,創造性地提出了填埋體中有機質隨時間(深度)變化的公式,並用現場測試結果進行了驗證。
  18. Actually, the initial use of emd algorithm is not in radar field, which is derived and utilized initially on the ocean or earthquake wave analysis. firstly, the emd algorithm adapted for the radar signal is examined in the dissertation. secondly, resolution improving in sar and multi - targets with non - uniform speed imaging in isar is studied by using emd algorithm the main work of the dissertation is as following : a ) by analyzed the emd decomposing results before and after matching filtering, the right position of emd decomposition in the imaging process is determined

    由於emd演算法一開始並不是在雷達領域發展的,文獻中已有的演算法主要是針對海波、地震波等,所以本文首先分析了適用於雷達信號的emd演算法,並從sar和isar回波信號的特點出發,以emd演算法分解后的雷達信號為基礎,針對目前sar成像中的高分辨問題、 isar中非勻速和多目標成像清晰度不高等問題,研究了emd演算法在sar與isar成像處理中的應用,並採用大量模擬試驗對研究成果進行了驗證。
  19. The field emission property of carbon nanotubes could be increased by substitution of nitrogen for some of carbon, however, however, that of bcn nanotubes was poor. 1. study of disordered multi - wall carbon nanotube carbon nanotubes with different diameter distributions have been produced by thermal decomposition of a ferrocene - xylene mixture under different temperatures and different catalysts in an ar ( or n2 ) / h2 atmosphere

    結合透射電鏡、掃描電鏡及拉曼光譜,系統地研究了以鈷二茂鐵為催化劑時不同溫度下、以及在860時,分別以鈷二茂鐵、鎳二茂鐵、鈷、鎳鈷不同催化劑、不同保護氣體對高溫熱解法制備的多壁碳納米管結構、產率等的影響,對產物的形態、結構進行分析。
  20. Some results on geometric lattice are involved in the present paper. here we recall some definitions and facts from geometric lattice, and then by the method of decomposition form of idempotent matrix over a finite field, one geometric lattice is obtained. at the same time, the present paper compute the characteristic polynomial and the parameters that involved in the geometric lattice

    本文得到了構造幾何格方面的一些結果,其中第一部分介紹幾何格理論的基本概念;第二部分利用有限域f _ q上冪等陣的分解形,構造了一個幾何格,並計算出該幾何格的特徵多項式及相應的一些參數。
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