數量變異 的英文怎麼說
中文拼音 [shǔliángbiànyì]
數量變異
英文
meristic variation-
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。It was suggested that eric - pcr could substitute for rapd in research related to the genetic identification and genetic diversity in auricularia and other edible and medicinal fungi : 2 to a certain extent, genetic differences among auricularia strains tested in this study did not have necessary relativity with their geographical origins respectively ; 3 in this study, genetic diversity in a. polytricha was higher than that in a. auricula : 4 in this study, a. fuscosuccinea had a higher homology to a. auricula than to a. polytricha ; 5 morphological characteristics validated the results from eric - pcr and provided a potential explanation for the higher similarity coefficient between a. auricular and a. fuscosuccinea ; 6 southern hybridization was employed by choosing a strain from a. auricula as a probe which hybridized with a. auricula and a. fuscosuccinea except a. polytricha, further confirming the veracity of the results from eric - pcr ; 7 in this study, isozyme analysis could not cluster the 7 strains from three auricularia species to different groups efficiently ; 8 2 strains from two auricularia species revealed high conservative degree and the restriction fragment patterns by 4 kinds of restricted enzymes showed no diversity
本研究中,木耳屬2個種的2個菌株在its區域表現出較高的保守性, 4種限制型內切酶的酶切圖譜沒有顯示出多態性;增加內切酶種類及供試菌株數量,有可能獲得具有多態性的限制性內切酶酶切圖譜; 9本實驗中, its區域的真菌特異性引物與真核生物通用引物對于擴增效果無較大差異,擴增片段長度均為650bp左右; 10根據形態學實驗、 eric - pcr實驗以及southern雜交實驗的結果分析,紫木木耳屬種質資源的遺傳鑒定和遺傳多樣性評價耳極有可能是毛木耳種的一個變種; n .本研究中所用的gutc法是一種適用於木耳屬菌株基因組洲a快速提取的方法; 12 .傳統的形態學分類法和現代的分子生物學分類法,兩者的關系是相輔相成,互為驗證Additive variance was higher than dominance variance, which indicates quantitative inheritance.
加性的變異高於顯性的變異,表明是數量遺傳。The coefficient of variation of saturated water content decreased with the depth of profile. the coefficient of variation of bulk density and field capacity fluctuate with depth of soil
飽和含水量的變異系數都隨深度的增加逐漸降低,含水量、容重和田悶持水量的變異系數隨深度的呈波動變化。The results showed that the number of polyhedra obtained by the staining method was less than that by hemacytometer, but the coefficient of variation of the samples was lower than that of hemacytometer method, thus the staining method can be used in quality control test of virus insecticides
該染色計數法測得的多角體數量要低於血球計數板的計數結果,但變異系數較血球計數板計數法顯著較小,結果穩定,適用於病毒殺蟲劑的質量檢測。Varieties of flowering colors present cline. specially, variations of flowering colors within puer population are many and varied. longs and widths of perianths as well as longs of stamens are continuous variation of quantitative characters
結果表明:居群內各種形態性狀都具有豐富的多態性,居群間具有明顯的多型性;花色呈梯度變異,特別是普洱居群花色變異式樣最豐富;花被片的長與寬和雄蕊的長度是數量性狀的連續變異。The number of thermodynamic variables, such as temperature and pressure, required to specify a state of equilibrium of a system, given by the phase rule
變化,變異相律提供的,要求詳述某一系統的平衡狀態的熱力學變量數目,如溫度和壓力By contrast, the paper calculated the reliability index of the abutment after changing variable quotiety of the stochastic variable
作為對比,本文還在改變各隨機變量變異系數的前提下,計算了壩肩巖體各高程的可靠指標。The studies on the effects of temperature and soil water content for the number of oribatida and collembola were made. the results indicate that there are some effects for the number of oribatida and collembola. the difference on the most preferred temperature and soil water content for the growth of oribatida and collembola is not obvious. the preferred temperature is about 24. the preferred water content is about 16 %. the toleration on low temperature and drought for oribatida obviously is capable than that for collembola
對不同溫度和土壤含水量甲蟎和跳蟲數量的關系進行了實驗觀察.結果表明,溫度和土壤含水量對土壤甲蟎和跳蟲的數量變動均具有一定的影響.甲蟎和跳蟲生長的最適溫、濕度差異不明顯,最適溫度約在24左右,最適濕度約為16 %的含水量.甲蟎耐受低溫、乾旱環境的能力明顯大於跳蟲Manglietia grandis flora quantitative features
大果木蓮的花部數量變異研究And secondly target and methods about quality control to construction project, have the affect factor " 4m1e " to quality variation under analysis and control, that quality to be influenced, seven kinds of means and tools of mathematical statistics to control quality and basic work need to do
接著對施工項目質量控制的依據、目標和方法,影響質量變異的「 4m1e 」因素的分析和控制、數理統計控制質量的七種工具和方法、需做的質量基礎工作等作了全面的論述。The new cnv map ? compiled from 270 individual genomes of people with african, asian and european ancestry ? will change the way in which scientists search for genes involved in disease
根據來自非洲、亞洲和歐洲的270個人的基因分析資料,科學家們繪制了新的「復制數量變異」圖,它將改變科學家們尋找與疾病相關的遺傳因子的方式。On the other hand, the hydraulic performance of the hole, including flow rate coefficient and uniformity of flow rate, have been tested as standards to evaluate the quality of holes punched by laser drilling machine with much better results than that punched by mechanical drilling machine. the shape of holes taken by a microscope photograph can also give detail and well explanations for this test results
對噴孔水力學性能的試驗研究表明,本文提出的用噴孔水力學性能指標(流量系數和流量變異系數)來評價微噴帶激光打孔機質量的方法是可行的,並證明微噴帶激光打孔機的質量明顯優于機械打孔的質量,用顯微鏡觀察噴孔的形狀的照片也同樣證明了這一點。Our results provided direct evidence that pf40 gene play a role in the tissue development, with knockout this gene the lateral buds were not visible. the plant hormones auxin and cytokinin appear to play a major role in controlling this process, therefore, the concertrition of auxin and cytokinin was measured, however, the concentration of the two hormone was variation a little in transgenic plants, but the ratio of the two was more than 5 fold in the pf40 gained function plant than that in wild type. furthermore the pf40 gene effected differentiation of the vascular bundles in different transgenic plants, results showed the pf40 could change both xylary fibers and vessel
進一步的實驗發現pf40基因會影響植物側芽發育的早期,即pf40基因作用在側芽形成與發育的早期。對轉基因穀子的組織切片的分析還表明pf40基因引起不同形式的轉基因穀子的維管組織的發育的差異,轉化正義載體穀子的木質部變多,維管系統增多,而反義或干擾的轉基因穀子的木質部數量變少,木質部分化異常。從轉基因的結果可見pf40基因可以減弱植物的頂端優勢,這種作用是通過改變植物體內激素的含量實現的。Based on the theory of stochastic finite element, the structural parameters of frame - shear structure including stiffness and mass and damping are simulated to be stochastic variables. by solving recurrence equation of stochastic finite element, the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame - shear structure. an analysis is thus given to the effects of independent variation and simultaneous variation of structural parameters on the seismic dynamic response of frame - shear structure. as shown by the results, with regard to frame - shear structure, the effect of variation of strucural parameters on the change of mean value are chiefly the increase of standard deviation of response. variation of stiffness will cause the response of frame - shear structure to variate greatly ; variation of mass shows less effect ; and variation of damping shows insignificant effect. the effects of simultaneous variation of various structral parametres on seismic response are only slightly greater than the effect of stiffness variation alone
以隨機有限元理論為基礎,將框剪結構的剛度、質量、阻尼等結構參數為隨機變量.通過求解隨機有限元的遞推方程,得到框剪結構各層的地震動力響應均值和標準差歷時曲線.分析結構參數單獨變異,以及同時變異對框剪結構地震響應的影響.研究結果表明,對框剪結構而言,結構參數的變異對響應的均值變化影響都不大,主要是增大響應的標準差.剛度的變異性將引起框剪結構的響應發生大幅度變異,質量的變異性影響稍小,阻尼的變異性影響不顯著.結構各參數的同時變異,對框剪結構地震響應的影響,僅比剛度單獨變異的影響稍大The linear relation assumes between the mean characteristic parameter, sorting coefficient, variation coefficient of pore structure by rectangular method and the fractal dimension by integrated linear regression, indicating that the fractal dimensions can be used to quantitatively describe the heterogeneity of reservoirs
用由矩法計算所得孔隙結構特徵參數均值、分選系數及變異系數與用整體線形回歸所得分形維數的線性關系說明,用分形維數來定量描述儲集層非均質性是可行的。Regard county, district unit of one grade of administrations as unit of counting, carry on land spend multi - level space - time dynamic change study, analyze 1986 - 2001 the land utilizes the quantity change all - sidedly, the land utilizes the space change of structure. through analyze article draw following meaningful conclusion while being above - mentioned : ( l ) district this one year, hit land utilize and take place the change by a large margin, and there are obvious regional differences one year. display it in the following several points concretely : land use pattern change a heavy one field, traffic land used for and cultivated land secondly most, residential area and land used for industrial and mining, utilize ground and forest land again, and water areas rate of change minimum
以縣、區級行政單元為統計單元,進行了土地利用多層次時空動態變化研究,全面分析了1986 - 2001年間土地利用數量變化、土地利用結構空間變化、土地利用景觀結構動態變化、土地利用程度變化、土地利用變化的區域差異等動態變化過程和土地利用變化規律,並應用數理統計和綜合模糊評判方法,利用社會統計軟體spss 、數學軟體包mathcad9 . 0定量的建立了土地利用變化的驅動力模型和預測模型,運用預測模型對本區土地利用類型進行了預測,並針對各驅動因素的地區差異,進行了驅動力分區。This paper looks soil as homogeneous stationary random fields, expatiates the application of the random process in the geotechnical engineering and establishes the basic concept, its assortment and digital feature of random process and random fields, tests whether this random fields is a stationary process and whether it is ergodic, applies correlation function theory and variable function theory in the study of the random fields of soil parameter, acquires the relation of the two theories and draws the conclusion that they are equal essentially, fits the measured curve by using the correlation function method, variable function method and other methods, and acquires the value of correlation distance, applies the random fields theory of soil parameter in actual engineering, estimates the value of elevation and other soil parameters of 92 holes in baoding city and the results are satisfying
將相關函數理論和變異函數理論分別應用於巖土參數隨機場的研究中,通過運用這兩種理論對巖土參數特性的描述,得出這兩種理論的內在聯系及其本質一致性的結論。分別運用相關函數法、變異函數法及其它求解相關距離的方法對實測函數曲線的擬合,得出描述空間相關程度的度量? ?相關距離(或變程) ,對用這幾種不同方法得出的相關距離(或變程)值進行了比較,並對這幾種方法的優劣和實用性做了評比。將巖土參數隨機場理論運用於工程實際,對保定市區某場地的92個鉆孔的各層位的層底標高及其它幾種常見的巖土參數做出了估計,預測結果比較令人滿意。With increase of the climate variability, the amplitude of increased yield simulated would be reduced. and the variation coefficient ( vc ) of the simulated yields and their instability would also increase
但隨著氣候變率的增大,模擬產量的增幅明顯變小,產量變異系數增大,穩產性變差。This paper mainly carries on research into quantity, degree and depth of luc, and landscape change degree in different economic zones of chongqing, comparative study of human driving forces causing different luc from qualitative and quantitative respects in different economic zones of chongqing, further investigation with cultivated land change and construction land change and driving force through analyzing proper human driving forces using principal components " analysis, multi - linear regression model, stepwise regression model, quantitative prediction of cultivated land and construction land in the following 10 years in the sample areas with the help of grey trend prediction model such as gm ( 1, 1 )
本研究主要進行了不同經濟區土地利用變化數量、變化程度(速度、速率) 、深度以及景觀變化差異研究;從定性和定量兩個方面對引起不同經濟區樣點土地利用變化差異的人類驅動力進行對比性研究;通過選取適當的人類驅動力因子,利用主成分分析法、多元線回歸模型、逐步回歸分析法對人類驅動力所引起的不同經濟區的耕地、建設用地的土地利用變化進行深入研究;利用灰色動態預測模型gm ( 1 , 1 )對未來10年內樣點區耕地、建設用地變化進行預測性研究。分享友人