Estimation of the parameters of linear exponential model by empirical bayes 線性指數(shù)模型參數(shù)的經(jīng)驗(yàn)貝葉斯估計(jì)
Two relation models between the drill footage and proved reserves are introduced : gompertz model and exponential model 摘要為估算油氣探明儲量,介紹了探井進(jìn)尺和探明儲量間的2種統(tǒng)計(jì)模型:龔帕茲模型和指數(shù)模型。
Spherical models , exponential models , gaussian models can be used to fit the semi - variogram . draft phenomena of available iron showed hole effect model 其變異函數(shù)可用球狀模型、指數(shù)模型、高斯模型擬合,有效鐵存在漂移現(xiàn)象,可用孔穴效應(yīng)模型擬合。
Several new performance decline models are presented . there are similarity exponential model , similarity logarithm model , exp - exp combinational model , log - exp combinational model and similarity bed damnification - exp combinational model 本文首先給出了涂層性能退化的類指數(shù)模型、類對數(shù)模型、類分層損傷-指數(shù)組合模型、指數(shù)-指數(shù)組合模型、對數(shù)-指數(shù)組合模型。
Firstly , a new interface roughness scattering model is developed using exponential autocovariance functions . the simulation results show that the electron mobility calculated using the exponential model are in good agreement with the experiment data 先推導(dǎo)了一種sic反型層表面粗糙散射的指數(shù)模型,研究證明應(yīng)用此模型能夠更精確地研究sicmos溝道載流子的輸運(yùn)規(guī)律。
And four constitutive models are established , which are hyperbolic model , half - logarithm model , exponential model and poisson model . combined with the analysis of the change of effective stress , the iteration formulations of settlement calculation are provided 同時(shí)建立了雙曲線模型、半對數(shù)模型、指數(shù)模型及泊松曲線模型四種本構(gòu)模型,并結(jié)合有效應(yīng)力過程分析給出了實(shí)用的沉降過程線的反演迭代公式。
Based on constructing the exponential model of social informatization , this paper measures the level of social informatization in changzhi city from 2002 to 2005 , points out some problems existing in the development of informatization in changzhi city and advances some countermeasures 在構(gòu)建社會信息化指數(shù)模型的基礎(chǔ)上,測算了2002 ? 2005年長治市的社會信息化水平,指出了長治市信息化發(fā)展中存在的問題并提出了對策。
With extension of the stolon , changes of the internode length , branching intensity and ramet length were fit to exponential model . it seemed to " flexibly " adapting to the habitat because the clonal architecture of s . vulgaris had both the traits of " guerilla " and " phalanx " 分株長度、間隔物長度和分枝強(qiáng)度隨匍匐莖延伸呈指數(shù)模型變化,其克隆構(gòu)型兼有“游擊”型和“密集”型的特點(diǎn),能比較“靈活”的適應(yīng)環(huán)境。
And the relationship between the models and type of geological units is derived : gompertz model is suitable for the geological unit with a complex geological setting while exponential model is suitable for the geological unit with a single geological settings and this kind of models can be applied to areas of less complicated geological features 結(jié)果表明:兩地區(qū)累計(jì)探明儲量與預(yù)測探明儲量的相關(guān)因數(shù)均大于0 . 75 ;龔帕茲模型較適用于油氣藏類型較多、地質(zhì)狀況較復(fù)雜的地質(zhì)單元,指數(shù)模型適用于地質(zhì)狀況比較簡單的單元。
The isotropy analyses indicated : the nitrogen density spatial distribution of 0 ~ 100cm depth displays the interest of moderate spatial correlation , its theory pattern accords with the exponential model . but the nitrogen density spatial distribution of 0 ~ 30cm depth is the very feeble correlation , its theory pattern accords with the spherical model 各向同性空間分析結(jié)果表明, 0 100cm土壤層厚度氮密度的空間分布體現(xiàn)為中等的空間相關(guān)性,它的理論模型符合指數(shù)模型;而0 30cm土壤層氮密度的空間分布則體現(xiàn)為很弱的相關(guān)性,它的理論模型符合球狀模型。