ratio deviation 中文意思是什麼

ratio deviation 解釋
比率偏差
  • ratio : n. (pl. ratios)1. 比,比率,比值;比例;系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達;求出…的比值;使…成比例。2. 將(相片)按比例放大或縮小。
  • deviation : n 1 脫離,越軌,背離 (from) 。2 偏向,偏差。3 (統計上的)誤差。4 【航海】(故意)偏航。5 【數...
  1. Abstract : based on the analysis of the mathematics models of saturation steam density and superheat steam density the paper states that the deviation of the detection on temperature highly affects the accuracy of intelligent flow totalizer. especially for saturation steam , the accuracy of the temperature detection circuit shall be designed higher than the accuracy of the instrument. thus a temperature detection circuit based on ratio method with high accuracy is introduced

    文摘:在分析飽和蒸汽和過熱蒸汽密度的數學模型的基礎上指出,溫度檢測的偏差對智能流量積算儀的精度影響極大,尤其是飽和蒸汽,測溫電路的精度應設計為遠高於儀表的精度,同時引入一種基於比率法的高精度測溫電路。
  2. Specially, based on risk - metric and factor variables, the author discusses multi - factor asset pricing model. in theoretical analysis, the author attempts to release the assumption of index ' s random walk, proves a portfolio selection model suitable for the linear index level moreover, based on assets un - exchangeable, the author brings forward asset pricing models for b - shares, h - shares and non - circulated - shares. the author also brings forward multi - factor asset pricing model based on risk - metric indices, such as coefficient of beta, standard variance, standard semi - variance, average absolute deviation, value at risk, and factor variables, such as circulated market equity, exchange ratio, short - term historical return

    在理論分析時,作者嘗試放鬆指數水平滿足隨機遊走過程的假設,推導出指數水平呈線性趨勢的資產組合選擇模型;此外,作者基於資產不可交易這一假設,提出了b股、 h股和非流通股等情形的資產定價模型,並基於系數、標準差、標準半方差、平均絕對離差和風險價值等風險度量指標以及流通市值、換手率、短期歷史收益率等因素變量提出了四因素資產定價模型。
  3. Pore parameters ( porosity and distribution of pore diameter ) of porous glass prepared by filler principle were measured and analyzed. they were mainly determined by the volume ratio and the particle diameter of the pore former in the green body. preparation and sintering process of the samples resulted in the difference between the porosity and the volume ratio of the pore former. they were also responsible for the deviation between the distribution of poer diameter and the particle diameter of pore former

    研究表明,利用填充法制備的多孔玻璃的孔參數(氣孔率、孔徑分佈)可進行設計與控制,多孔玻璃的氣孔率和孔徑分佈主要取決于成孔劑的體積比及其顆粒分佈,前者與後者之間的偏差取決于生坯制備及燒結過程。
  4. Circulation for transferring record then, based on the above limitations, this paper proposes a dynamic load balancing method. through the simulation of the change over time of the traffic of customer data, it draws a comparison in the deviation of the change over time of the traffic in a certain sdm ( service data module ) with respect to that of the average traffic of all modules between old method and new method. the load imbalance ratio, the number of records transferred per unit time and the reduction of number of modules are evaluated

    本論文針對上述兩個問題,提出一種改進的負載平衡方法,通過對用戶數據流量隨時間變化的模擬,比較了記錄遷移方法改進前後每一模塊的流量變化與所有模塊平均流量變化的趨近程度,同時還對幾個重要參數:模塊數量縮減率、負載不平衡比和單位時間內記錄遷移數量,它們之間的關系進行討論,得出改進后的記錄遷移方法能夠達到動態平衡負載的效果。
  5. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期,由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配, sio _ 2對其又有良好的掩蔽作用,早被選為npn硅平面器件的理想基區擴散源,但b在硅中的固溶度大( 1000時達到5 10 ~ ( 20 ) ,擴散系數小, b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈,導致器件不能滿足高反壓的要求,隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝,前者會引起較大的基區偏差,雜質在硅內存在突變區域,導致放大系數分散嚴重,下降時間t _ f值較高,熱穩定性差;後者需要難度較大的真空封管技術,工藝重復性差,報廢率高,在擴散質量、生產效率諸方面均不能令人滿意。
  6. The strong deviation theorems are new type theorems established by using the notion of the likelihood ratio. professor liu wen frist applied an analysis method in solving a class of strong deviation theorems for a sequense of random variables. later professor liu wen studied the shannon - mcmillan theorem in information theorems [ 2 ] - [ 8 ] and deviation theorems of non - negative continuous random variables [ 10 ] - [ 11 ] by using the analytic technique and obtained some strong deviation theorems. the chapter 2 of the paper studied a class of strong deviation theorems of function of two variables of information sources and obtained a further study of shannon - mcmillan theorem of markov information sourses by definning the using concept of entropy density divergence. the chapter 3 of the paper studied a class of strong deviation theorems of non - negative continuous random variables by using tool of transformation of laplace. information theory, as a branch of applied probability theory, becomes more and more important in appling

    劉文教授在解決大數定律中,用首創的分析方法得到一類隨機變量序列的強偏差定理。后來,劉文教授把分析方法用於信息論中shannon - mcmillan定理和連續型隨機變量的偏差定理的研究,得到了若干強偏差定理。本文的第二章是引進任意信源相對熵密度偏差的概念,並利用這個概念研究任意信源二元函數的一類強偏差定理,得到了馬氏信源shannon - mcmillan定理的一個推廣。
  7. Simulated annealing of multi - parameters optimization is the simulated annealing wave impedance inversion with some constraints, including s / n ratio, adjacent - channel correlation, deviation of initial model, and threshold value of reflection coefficient

    摘要多參數優化的模擬退火法波用抗反演是通過調整地震資料信噪比,相鄰道的相關性、初始模型偏差、反射系數門檻值等約束條件進行地震資料反演的。
  8. In this paper, the notion of likelihood ratio, as a measure of deviation between a sequence of the arbitrary random variables and a sequence of independent random variables with different distributions, is introduced. a class of strong deviation theorems represented by inequalities are given on a subset of the sample space by constructing a negative supermartingale and using martingale convergence theorem

    本文通過引進似然比作為相依隨機變量序列相對于服從不同分佈的獨立隨機變量序列的偏差的一種度量,並通過構造一個非負上鞅,利用鞅收斂定理給出了樣本空間的一個子集上的一類用不等式表示的強偏差定理。
  9. In chapter 4, the purpose of this chapter is to establish a kind of strong deviation theorems of functional for the sequences of arbitrary continuous random variables, by using the conception of log likelihood ratio, and extend the strong deviation theorems on the differential entropy for dependent arbitrary continuous information sources on the the probability space (, . f, p )

    使得對于在概率空間( , f , p )上的任意連續型信源的微分熵的強偏差定理是本文的推論;第五章,總結本文的主要結論。
  10. In chapter l, we introduce the relative background on this paper and give some simple expressions of the work which have been studied. in chapter 2, in virtue of the notion of likelihood ratio the limit properties of the sequences of dependent nonnegative continuous random variables are studied, and a class of strong limit theorems represented by inequalities are obtained. the bounds given by these theorems depend on positive constant c. in chapter 3, by means of the notion of log likelihood ratio, a kind random strong deviation theorem are obtained, and the bounds given by these theorems depend on r ( )

    第一章,介紹本論文的選題背景,對已有的工作進行扼要的介紹;第二章,利用似然比的概念研究相依連續型非負隨機變量序列的極限性質,得到一類強偏差定理,其偏差界依賴于正常數c ;第三章,利用對數似然比的概念得到一類隨機偏差定理,其偏差界依賴于r ( ) ,證明中引進了尾概率和尾概率的laplace變換的概念;第四章,利用對數似然比的概念,得到了一類關于任意連續型隨機變量序列的泛函的強偏差定理。
  11. This paper uses methods of mathematical statistics to quantitatively measure the concentration and dispersion degree of spatial pattern and evaluate the convenience degree of spatial connection of wuhan in deviation ratio, compactness ratio, dispersion ratio, radial shape index and transportation distance

    摘要運用數理統計方法,從偏離度、緊湊度、離散度、放射狀指數及出行距離等方面,對武漢市建成區幾何形狀的集中、分散程度和空間聯系的便捷程度進行定量化測度評價。
  12. This paper precedes analysis by examples on investment income in shanghai and shenzhen stock market from 1994 to 2005 by investment strategies with financial ratios as decision basis, inspecting average rate of return of various investment strategies, standard deviation for investment income, sharpe ratio of reward to risk, and analysis on these results. financial ratios in research include : price - to - book ratio, price - to - earnings ratio, price - to - sales ratio

    本文主要對以相對估價法為決策依據的投資策略在滬深兩地a股市場1994年至2005年的投資收益進行實證分析,考察各種投資策略在這11年間的總收益、年度復合收益率、收益標準差、收益的夏普風險指數,並對結果進行了分析。
  13. The ratio of prediction value to experimental value is 1. 0006 for the learning samples, 0. 9980 for the testing samples ; the standard deviation is 0. 0200 and 0. 0596 respectively, indicating that the prediction results conform well to the test results

    分析及頂測結果表明,學習樣本和測試樣本的預測值與實驗值之比的均值分別為1 . 0006 , 0 . 9980 ;標準差分別為0 . 0203 , 0 . 0596 ,預測值與試驗值吻合良好。
  14. The engineering algorithm ( physics optical method ) for numerical simulation of ao effect was also derived, the point - diffusion function obtained can be used to obtain sighting - axis deviation, blurring, jitter and strehl ratio, so that the ground simulation of ao effect can be theoretically feasible

    同時推導了氣動光學效應數值模擬的工程演算法(物理光學法) ,得出的點擴散函數便可得到氣動光學效應的視軸偏差、模糊、抖動、 strehi比等,從而使氣動光學的地面模擬測試研究在理論上可行。
  15. The influences of the signal - to - noise ratio and the integration limit on reverberation times evaluation are weakened, and a minimum statistical standard deviation and 95 % probability confidence interval are obtained

    同時,對比現有其他方法在統計上有最小的估值標準差,其均值的95 %概率置信區間也最小,有效地提高了混響時間的估值精度。
  16. Using the above method, the analytic expressions of response and dynamic reliability are got. 3, on the basis of the above analytic expressions, taking the isolation or seismic decrease coefficient ( the ratio of the standard deviation of the response of structures ) as the optimal objective function, the parameters of the isolation and seismic decrease equipment are optimized. an optimal design method and some useful data are achieved and it can be used in the practical project

    3 、在基礎隔震結構、 「加層減震」 ( tmd減震)結構隨機地震響應解析表達式的基礎上,以結構在有、無隔震或tmd減震裝置情況下的隔震或減震效果指標(結構位移響應標準差之比)為優化目標函數,對隔震和tmd減震裝置的參數取值進行了優化,得出了可應用於工程實際的優化設計方法和一些有用的數據,可應用於指導工程設計。
  17. Experiments result indicates that compared with normal linear correction, the correction method features bigger system ' s dynamic range and bigger signal - noise - ratio ( 1. 3 times ) with the reduction of standard deviation

    實驗結果表明,與常規線性校正相比,該方法不僅提高了系統成像的動態范圍,而且隨著標準差的降低,信噪比相應地提高了近1 . 3倍。
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