數字特徵 的英文怎麼說

中文拼音 [shǔzìtèzhǐ]
數字特徵 英文
numerical characteristics
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 字 : Ⅰ名詞1 （文字） character; word 2 （字音） pronunciation 3 （字體） form of a written or printed ...
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 徵 : 名詞[音樂] （古代五音之一 相當于簡譜的「5」） a note of the ancient chinese five tone scale corre...
  • 數字 : 1. （表示數目的文字; 表示數目的符號） figure; digit; numeral; character; numeric character 2. （數量） quantity; amount
  • 特徵 : characteristic; feature; properties; aspect; trait
  1. For the diffusion model and numerical simulation model, the numerical character of chaff clouds during diffusion is obtained

    對擴散模型進行分析得到了箔條雲團擴散過程中的數字特徵。
  2. Comparing numerical character of above two models, it shows that the variance of atmosphere motion must be modified so the time step used in numeric simulation has no effect on numerical character of chaff clouds

    對數值模擬模型的分析表明必須對大氣的運動方差進行時間離散化補償，進行離散化補償后箔條雲團的數字特徵不受模擬時時間步長的影響。
  3. 4. bp neural network arithmetic is used in the handwritten numeral recognition system. in order to reflect the whole character, we use many input modes to train the networks

    將bp神經網路引入到手寫數字識別中，並採用多種輸入模式對不同的bp網路進行訓練，從而達到全面反映數字特徵的目的。
  4. Taken yanjia river watershed as an example, this study extracted watershed digital characters from dem, and simulated rainfall - runoff with the rainfall - runoff model based on gis and wms. the main contents and results include : ( 1 ) the building of the spatial database of watershed

    本研究應用地理信息系統和wms模型系統，以三峽庫區晏家河流域為例，由dem提取流域數字特徵，再與降雨徑流模型有機結合進行了降雨徑流數字模擬研究，主要的研究內容和結果包括以下幾個方面： （ 1 ）建立了流域空間數據庫。
  5. Based on the mathematical model for analyzing the seismic responses of submerged tunnels proposed by choshiro tamura and shunzo okamoto, the analytical model for calculating the stochastic earthquake responses of the whole underground structure was proposed and the formulas for evaluating the stochastic characteristics of the underground structural seismic responses were derived. the dynamical mean - square responses of the nanjing changjiang tunnel under gauss stationary random process were calculated. 3

    2將日本田村重四郎?岡本舜三提出的沉埋隧道地震反應分析的數學模型應用於地下結構隨機地震反應分析，利用數值分析方法建立了隧道整體隨機地震反應分析的數學模型，得到了地下結構整體隨機地震動力響應數字特徵的數學表達式，為地下結構整體隨機地震反應分析及動力可靠度的研究提供了一種分析途徑。
  6. Abstract : in order to provide the reasonable parameters in the reliability analysis of tunnel structure and the criterion in the quality control of tunnel engineering, in this paper, the over - under - excavated values of the real - state outline of tunnel excavation are obtained by the near - field photographic method. by using mathematical statistic method, the figure features and probability distributions of the over - under - excavated values of the surrounding rock, including deferent positions of same cross section, are analyzed

    文摘:採用近景攝影的方法，從隧道開挖毛洞中獲取圍巖超欠挖數據，通過數理統計的方法，分析各類圍巖超欠挖的數字特徵及概率分佈，同時得出各類圍巖超欠挖在隧道斷面不同部位的分佈規律，為隧道結構的可靠度研究提供可靠參數，也為隧道工程質量控制提供基準
  7. The fractal theory was used to study the character of liquid - vapor interface in the paper, hence the application of the fractal theory in thermal subjects could be solved and a way to calculate the fractional dimension number in the process of simulation could be put forward. the fractional dimension number describing the character of the liquid - vapor interface was calculated. the distinct fractional dimension numbers in x, y and z direction reveal that the simulation system is an anisotropic one

    並將分形理論運用到汽液界面的研究中，提出了在汽液界面中計算分維數的方法，得到了描述汽液界面特性的數字特徵變量? ?分維數，同時根據所得到的x 、 y和z方向分維數的不同，證明了汽液界面是各向異性的，並對汽液界面進行了定性和定量的分析，得到了汽液界面是典型的分形面的結論。
  8. Secondly, we construct the sequential confidence intervals for the common number characters : coefficient of variation, skewness and kurtosis, stressing on computing their asymptotic variances in their limiting distributions

    其次，我們就常用的數字特徵變異系數、偏度和峰度分別建立了它們的序貫置信區間程序，著重算出它們極限分佈中的相關漸近方差。
  9. The thesis discusses and analyses the sorting of wear, the way the wear particle formed and the characteristics of the wear particles. the thesis proposes that the method of tribology system analysis should be used in the research on the wear particle, the characteristics of wear particle have relation to the condition and process of wear, the characteristics of wear particle include the condition characteristics and construction characteristics of the tribology system

    分析論述了磨損的分類以及相應磨粒的生成機理和磨粒的形態特徵；提出了用摩擦學系統分析的觀點研究磨粒分析，磨粒的形態與磨損狀態、磨損機理有密切關系，系統磨粒的數字特徵包括摩擦學系統的狀態特徵、結構特徵。
  10. A new type of viscoelastic stochastic finite element method is established using first - order perturbation theory based on local averaging method of random field and karhunen - loeve expansion theory of random process. the amount of computations is greatly reduced by transforming correlated random variables to a set of uncorrelated random variables. the relations of different random response variables are analyzed and monte carlo simulations for viscoelastic stochastic structures are investigated

    基於隨機場的局部平均法以及隨機過程的karhunen - loeve分解理論，通過一階隨機攝動方法建立了考慮材料近似不可壓縮的粘彈性隨機有限元公式，由相關結構分解減少計算量，分析了各結構隨機響應量之間的關系，給出了數字特徵的計算方法，研究了粘彈性隨機結構的montecarlo模擬驗證方法。
  11. Test of capability for the microreactor as the one used in industry and its digital feature

    微型工業反應器的性能檢驗及其數字特徵
  12. Abstract : he problem of structural dynamic optimization with the reliability constraints of the frequency is studied in this paper

    文摘:首先對結構材料物理參數為隨機變量時，結構剛度和質量矩陣的建立以及結構特徵值隨機變量的數字特徵進行了推導。
  13. From langevin equation, the stochastic resonance characteristics of bistable system were investigated, including the probability density function and other character numbers

    通過朗之萬（ langevin ）方程，本文詳細研究了雙穩態系統的隨機共振特性，得出系統穩態輸出的概率密度分佈函數及其數字特徵。
  14. The main idea of this method include two steps : at first, the approximate expression of function is obtained by method of weighted residuals ; then the first and second moment of the random function can be calculated with method of moment

    該方法的基本思想是利用加權殘值法獲得問題解的近似函數表達式，在此基礎上利用求解隨機變量函數的矩法求得隨機函數的一、二階矩等統計數字特徵。
  15. In this paper, we focuses on the extended form of a class of o - u process used in [ 1 ], presents its analytical solution and specifically calculates its numerical characteristics, at last points out that its limit process is our familiar process - geometric brownian motion

    研究了[ 1 ]中所使用一類指數o - u過程的推廣，給出了其解析解並具體算出了其數字特徵，最後指出其極限情形就是我們熟悉的幾何布朗運動。
  16. Then, from the expressions of structural random response of the frequency domain, the computational expressions of the mean value, variance and variation coefficient of the mean square value of the structural displacement and stress response under the stationary random excitation or non - stationary random excitation are developed by means of the random variable ’ s

    在此基礎上，從隨機振動頻域分析出發，導出了在平穩或非平穩隨機激勵下，隨機結構的位移響應均方值、應力響應均方值的數字特徵計算表達式，通過算例驗證了所建模型和所提求解方法的正確性和有效性。
  17. But, though considerable process has been made in the last ten years, digital watermarking is still in its infancy, and much interesting work remains to be done this thesis addresses some problems in the gray - scale image digital watermarking that are summarized below : 1 ) whereas the basic theory of digital watermarking is still very poor, a digital watermarking mathematic model based on imperceptibility and robustness is presented by analysising the characteristic of digital watermarking ; 2 ) based on the model constructed above, by defining the measures of capacity and robustness of digital watermarking, an objective method for evaluating the digital watermarking is introduced and used to analysis some algorithms ; 3 ) whereas geometric distortion always influences the restoration of watermark, we advocate to enhance the robustness against geometric distortion by restoring the image which has been distorted by geometric transformation, and a method is designed for estimating the parameters of geometric transformation ; 4 ) based on the conclusion discussed above, and combined with the masking effects of hvs, a novel public meaningful gray - scale image digital watermarking is designed by analysising the characteristics of image gray - scale interpolation and haar wavelet transformation. the experimental results show that the method is indeed powerful ; 5 ) whereas many image digital watermarking schemes, which embed watermark by modifying the values of pixels in spatial domain and transformed domain, are confronted with the conflict between the imperceptibility and robustness, we advocated to use some stable digital characteristics of host image as watermark and a algorithm based on hermite matrix is designed

    本文重點對灰度圖象數字水印技術進行研究，主要工作如下： 1 ）鑒于目前數字水印的理論研究比較薄弱的現狀，本文通過分析數字水印的特點，建立了一個數字水印的數學模型，為進一步研究數字水印打下了基礎； 2 ）根據以上建立的模型，通過引入容量和穩健度的概念為數字水印提供了一個客觀評價方法，並對一些數字水印演算法進行了分析； 3 ）為增強數字水印抵抗幾何攻擊的能力，研究了受幾何攻擊的圖象的復原問題，並給出了一個計算圖象幾何變換參數的方法； 4 ）通過分析圖象灰度插值演算法和haar小波變換的特點，結合hvs的掩蔽效應，設計了一個公開的有意義數字水印演算法，實驗結果表明本演算法具有較強的穩健性； 5 ）目前許多水印演算法都是通過在空域或頻域修改象素值的方法嵌入水印的，這種方法面臨著透明性和穩健性的矛盾，為解決這個矛盾，本文提出以圖象的某些穩定的數字特徵為水印的觀點，並結合hermite矩陣的特點設計了相應的水印演算法，實驗結果表明該演算法具有較好的穩健性。
  18. The results of this thesis come from getting a good outcome by applying the quantity characteristic to building and evaluation of network. it made a good preparation to the research of building a index system of quantitative analysis of outside or inner relationship between industrial enterprise and macro - economic system

    本文主要成果在於引入了從網路的數字特徵去規劃網路和評價網路的原理和方法，並取得了良好的結果，而為研究建立航空工業企業，市場與宏觀經濟系統內外關系的定量分析評價指標體系作出準備。
  19. In the view of stochastic resonance ( sr ) and signal processing, parameter - turning sr ( psr ) theory and method is proposed and the characteristics of bistable systems are studied. the applications of psr in multi - frequency analog signal processing, digital baseband pulse - amplitude modulation signal transmission and digital carrier modulation signal transmission are investigated. this thesis has also introduced the concepts of parameter - adaptive sr and array - induced sr

    本文主要從隨機共振物理力學機理與信號處理的角度，研究了非線性雙穩態系統的數字特徵，提出了參數調節隨機共振（ psr ）理論和方法，並將這一理論應用到多頻模擬信號處理、數字基帶信號傳輸和數字載波調制信號傳輸中，引入了參數自適應隨機共振和陣列隨機共振系統的概念。
  20. Based on free handwriting numbers geometric structure, a way about picking up numbers eigen - value for end and its position, protruding point and its direction, three cross point ' s position, four cross point ' s position and so on, is put forward ; and number which exerts twelve paratactic bp neuron network for single number and single network, is recognized ; and regard the different scripts of a same number, which differ significantly from characteristic value, as different classification, therefore it obtains better effect

    摘要基於手寫體數字的幾何結構提取端點及其方向、凸點及其方向、三叉點數和四叉點數等數字特徵值，運用單字單網的12個并行bp神經網路進行數字識別，把同一個數字特徵值差別很大的字體當不同的類別來處理，最後能達到很好的識別效果。
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