方差律 的英文怎麼說
中文拼音 [fāngchālǜ]
方差律
英文
variance law-
And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed
研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。Theory of portfolio optimization is an important part of the modern ? nance in - vestment theories, which uses mathematical facilities such as convex analysis, random analysis, nonsmooth analysis, ( nonlinear ) programming etc, combined with the mean - variance method the basic method of modern portfolio theory. by setting up mathe - matical models, discussed the investment rules of ? nance market and o ? ered theoretic guide for investors
投資組合優化理論是現代金融投資理論的重要組成部分，它運用凸分析、隨機分析、非光滑優化、 （非）線性規劃等數學工具，並與現代投資組合理論的基本方法均值方差方法相結合，通過建立數學模型討論金融市場投資規律並為個人或機構投資者提供理論指導。On the base of var. analysis significance of the experimental treatment, we investigated crop response to water - salt stress regularity, studied the quantity relationship about crop yield and soil water and salt, established a function about them referring to blank and jense water model. conclusions as follows : ( 1 ) the effect of germinating time and rate emergence are different in soil with different salt content, and limited seriously in heavy saline soil
在方差分析確認試驗處理顯著的基礎上，對作物生理生育指標（株高、莖粗、葉片數、花盤直徑、干物質量、葉水勢、籽實產量）進行統計分析探索作物水鹽響應規律；研究作物產量與土壤水分鹽分聯合作用的定量關系，參照水分的blank加法和jense乘法模型結構，建立作物水鹽響應模型。Aesthetic appearance is one of the most important criteria used by consumers in judging clothing wear performance. bagging is a kind of three - dimensional residual deformation that deteriorates garment appearance during wear and caused dissatisfaction. to understand the psychophysical mechanisms of fabric bagging perception, a method of subjectively evaluating this behavior is developed by using a series of photographs taken from bagged fabric samples. both ranking and rating scales are used as the psychological scales. the two scales are highly correlated with each other, but the rating scale provides more information than the ranking scales and can indicate perceived differences between fabrics. a linear relationship between subjective perceptions and measured residual bagging height shows that perception of fabric bagging follows stevens ? power law. residual bagging height contributes up to 94 % of the total variance in the perception of fabric bagging. the rest of the variation may be attributed to anistropic behavior during the bagging process
美觀是消費者日常服裝穿著功能中最重要的指標之一.起拱是一種外衣穿著中引起變化，令人不滿的三維殘余變形.一種主觀評價方法是從一系列起拱織物的照片來理解心理物理學規律，採用優劣排序等級和優劣評判等級兩種方法用於心理評價標度.這兩種等級互相間緊密相關，但評判等級比排序等級包含更多的信息，可以更好地區分出兩種織物間的差異.主觀評價結果與測量得到的殘余起拱高度之間線性相關，表明了織物起拱特性符合斯特藩指數定律.殘余起拱高度對織物起拱特性總方差的貢獻在94 %以上.其它可能是起拱時各向異性因素引起的By using ncep / ncar reanalysis data of height and wind, the inter - monthly lpac map, the climate lapc map, inter - annual anomaly map and mean variance map of monthly wind field of 850 and 500hpa and monthly height field of 850, 500, 150, 30hpa are calculated in a globe - belt area, which situates between 30 s and 75 n, from december 1957 to december 1997, according them we analysis the rule of the season transfer and anomaly of nh mean circulation. the results show that the climate map of lapc can describe the seasonal transfer process of large scale circulation better. the advance process of summer circulation establish is form south to north at the middle and lower level of the troposphere, that is reflected primly in the inter - monthly wind and pressure map of lapc ; at lower lever of stratosphere, the establish process is simulate to that of troposphere, and reflect of process of that the south asia high toward plateau ; at middle stratosphere the summer circulation establish begins at middle and high latitude initially, and then transmits to low latitude gradually, while the seasonal variability in mid - stratosphere is stronger than it in troposphere and low - stratosphere
利用ncep ncar再分析高度場和風場資料，計算了30 s 75 n球帶區域1957年12月至1997年12月逐月850 、 500hpa風場及850 、 500 、 150 、 30hpa高度場月際局地型相似系數圖、多年平均圖（即氣候lpac圖） 、年際異常圖及均方差圖，在此基礎上，分析了北半球平均環流季節轉換及其異常的規律。分析表明，氣候局地型相似系數圖較好地給出了大尺度環流季節轉換發生的過程：在對流層中、下部，風、壓場月際局地型相似系數圖清楚地反映了夏季型環流建立由南向北的推進過程；低平流層夏季型環流的建立與對流層接近，其中，南亞高壓上高原過程有明顯反映：中平流層，夏季型環流的建立明顯表現為從中、高緯度開始，逐步向低緯傳播的特徵，且變化較對流層和低平流層明顯。The soil phosphate activities were determined after 0, 10, 50, 60 days. the results show that alkaline phosphate activity was degressive, acidic phosphate activity changed inconsistently and neutral phosphate activity was ascending slowing. the analyse of the phosphate activity ' s absolute change also shows that the influence of soil algae on phosphate activity is not prominent
結果表明，待測土壤中的堿性磷酸酶活性全部是下降的，中性磷酸酶活性緩』陛上升，而酸性磷酸酶活性的變化沒有太大的規律性，但是總體上還是上升的、其磷酸酶活性絕對變化的方差分析也表明藻類對土壤磷酸酶的影晌不顯著。In operating process of systems, besides the external randoml disturbance from the, also influence also comes from inside as parameter changing, in order to cope with this two kinds of uncertainties, a minimization variance control strategy based on innovations is proposed rind the analytic solution of this suboptimal control is obtained in this paper
摘要系統在運行過程中，除了受到來自外界的隨機干擾外，還受到了諸如內部參數引起的不確定性的影響，為對付這兩種不確定性，採用雙態控制方法，提出了基於新息的最小方差控制策略，獲得了該次優控制律的解析解。The deviation value was used to characterize the inhomogeneous degree of concentration fields, and the attenuation rate with time was used to characterize the injection dispersion performance of flow field
以此方差近似表徵了示蹤劑濃度場的非均勻度，其衰減規律可用於定量描述振蕩流場的注入分散特性。First we analyzed the context and construction of the answers to the opened questionnaire to construct the coding handbook, then we receded these answers and used z - test and x2 test to analyze the conception of respect in children and its development. at last we studied the relationship between respect conception and friendships by t - test and anova
首先對收集到的小學兒童尊重觀念問卷的開放式回答進行內容分析和結構分析，建立小學兒童尊重觀念的編碼手冊，然後對兒童的尊重觀念編碼，運用z檢驗和卡方檢驗分析小學兒童的尊重觀念及其發展規律，最後通過t檢驗和方差分析探討尊重觀念與友誼關系的各個層面的關系。( 2 ) the response characteristics of wind - induced vibration under uncertain parameters were analyzed, which suggested a simplified method for evaluating mean and standard variance of acceleration responses. compared with the results given by a form and fosm method, the suggested methods can give a more precise estimation
（ 2 ）研究了隨機參數作用下的結構風振均方根加速度響應的分佈規律，給出了直接估計均方根加速度響應均值和方差的解析表達式。Therefore, the exploration of the commercial legislation pattern should be based on the objective reality of our social and economic life to search a localization and modernization way. chapter i, the review of the process to the independence of west commercial law. commercial law in the west has its origins in the profound socio - economic backgrounds and traditional cultures
因此，我們對商事立法模式的探索，應當立足於我國社會經濟生活的客觀實際，並從中西方法律傳統的差異中尋求商法在我國本土化和現代化的出路，從而以一種更加務實的態度指導我國商事立法的實踐。In both ripple and effect ' s research, we compare different node ' s ripple and effect, and the rule they change. ( 4 ) using the model and matlab tool, we have analyzed the ripple effect when market demand variance risk and supporter ' s price variance risk both exist
波及和效應的研究，也都比較了兩個方面:一是相同市場需求方差風險下，不同節點之間波及和效應的大小比較;二是同一個節點的波及和效應隨著市場需求方差風險變化的規律。Resolution of shareholders ’ meeting is a special legal act ; therefore it requires special procedures to pass
決議的成立、生效以及瑕疵都與單方、雙方法律行為存在較大的差異。( 2 ) because of t he variability of rock subjected to outside action, three new conceptions : postive damage basic damage and negative damage, are suggested, which can deal with the condition that rock density became large. ( 3 ) the present damage variables based on ct number mostly include ct average number of the rock without damage, which is difficult to measure, so a new damage variable, which includes the average ct number is proposed, on the other hand, strain equal theory is generalized because the one put foreword by lemaitre is not good enough to use. ( 4 ) a axial damage constitutive equation is proposed and testified. ( 5 ) with the circle times, the damage propagation laws of two different rocks, subjected to circle of freezing and thawing, are studied, and in the analysis process, traditional analysis method including average ct number and is used, some important conclusions are reached : inner damage of soft rock containing a large mount of apertures is largely propagating with the time increasement of circle, however, at the preliminary time, the hard rock containing a small mount of aperture is a little propagating, at late time, the influence become large ; ( 6 ) zone separation and statistics frequency put forward is used to analysized the three different damage propagation in the open circumstance, when they are subjected to the different circle times of freezing and thawing, in which the temperature variability is linear, different freezing rate, and different freezing temperature, and no water is supplied during the test
在研究過程中本文主要做了以下工作： （ 1 ）針對巖石損傷變化較小時，運用ct均值和方差分析不方便的缺陷，本文提出運用對ct數范圍劃分區段的方法，根據各區段統計頻率的變化規律來分析損傷擴展狀況； （ 2 ）針對巖石受到外部作用的多變性，本文提出了基準損傷，正損傷，負損傷的概念，在某種程度上考慮了巖石受到外部作用時的壓密情況； （ 3 ）現有的基於ct數的損傷變量大多需要用到巖石基體的ct均值，這實際上是很難觀測到的，因此本文建議了一個可運用巖石初始狀態ct均值的損傷變量，由於現有的勒邁特教授應變等價原理使用上的不便，本文在其基礎上進行了推廣； （ 4 ）建議了一個可用巖石初始狀態ct數和彈性模量的單軸損傷本構方程，並用算例進行了驗證； （ 5 ）對兩種不同巖石在開放環境下受到凍融循環作用且融化過程中補水時，內部損傷隨凍融循環次數增加的擴展規律進行了探討，主要運用了常規的ct均值和ct方差的分析方法進行分析，試驗發現：對于孔隙率和含水率較高，密度和強度較低的軟弱巖石，凍融循環次數對損傷結構的擴展有明顯的影響，而對于孔隙率和含水率較低，密度和強度較高的硬巖，凍融循環次數對其損傷結構擴展初期由於含水率低的原因，影響不是太大，而後期由於水補給后，含水率較高的原因，凍融影響逐漸增大； （ 6 ）運用了本文提出的區段劃分和統計頻率的方法，深入地分析了開放環境下的線性溫度變化的凍融循環次數，凍結溫度，凍結速度不同巖石作用時，其內部損傷隨凍融循環次數，凍結速度和凍結溫度變化的擴展規律，需要指出的是除了在試驗前飽水外，凍融過程中沒有補水。The concept of complete convergence was introduced by p. l. hsu and robbins [ 11 ] in 1947 : for arbitrary > 0 and i. i. d random variables with mean zero and variance 1, we have this conclusion strengthened classical strong law of large numbers in the direction of borel - cantelli lemma
完全收斂性的概念是許寶祿和robbins [ 11 ]於1947年提出：對于均值為0 ，方差為1的獨立同分佈的隨機變量序列和任意0 ，我們有這個結論沿著borel - cantelli引理的方向加強了古典的強大數律。Moreover, the special expression of the moment, the second moment and variance with de moivre ' s death rate were given. finally, considering abrupt event ' s effect on interest, we established the models of the random rate of interest jointly by gauss process and poisson process, wiener process and poisson process or o - u process and poisson process, also gave the moment, the second moment and variance of the payable present value under the three cases. moreover giving the special expression of the moment, the second moment and variance with de moivre ' s death rate
對于連續型情況，隨機利率分別採用gauss過程、 wiener過程和o - u過程建模，分別給出了給付現值的一、二階矩和方差，並在demoivre死亡律假設下得到了矩的簡潔表達式；考慮到突發事件對利率的影響，又對隨機利率採用gauss過程、 wiener過程和o - u過程分別與poisson過程聯合建模，分別給出了給付現值的一、二階矩和方差，並在demoivre死亡律假設下得到了矩的簡潔表達式。Allan variance estimated by simulated noise and calculated theoretically using power law model are well matched. the effect of phase noise on azimuth focusing is given by monte carlo experiment
模擬相噪得到的allan方差估計值與冪律模型得到的allan方差理論值符合得較好。Using tools like frequencies, one - way anova, lsd and ahp, these data, together with data from the statistics bureau and the science department, were analyzed for the capital demand patterns and obstacles in financing of enterprises of different industries, scales and stages of development. it also did analysis of the policies and measures of improving the financing environment for private high - tech enterprises in zhejiang provinve. the innovative features of this article are : 1
對這97份問卷本文採用了frequencies 、 one - wayanova 、 lsd以及ahp等工具，並結合大量的從統計局、科技廳等相關部門取得的寶貴的統計資料，對不同成長階段、不同行業、不同規模的企業的資金需求的規律以及融資中的主要障礙進行了方差檢驗與層次分析，並就完善浙江省民營科技企業融資環境的政策措施進行了層次分析。It is feasible to forecast extreme - value of future by the mean value change ; but it is difficult to forecast with the changing of variance which rule of variety is difficult to know
利用均值變化對未來極值特徵進行預測是可行的。但對方差來說，由於其變化規律性不明顯，利用其預測比較困難。The best process parameter combination and the influence rule for ps material is got by the application of square error analysis method
利用方差分析方法，獲得了聚苯乙烯材料激光燒結的最佳工藝參數組合以及各工藝參數的影響規律。分享友人