1)polarity index极性指数
1.The polarity index ((O+N)/C atomic ratio) and components (waxes, cutin monomer, polysaccharide) of all cuticular fractions were characterized by elemental analysis and the recoveries of each fractions were determined.5%生物高聚物(cutan)组成,脱蜡、皂化脱角质单体后角质组分的极性指数((O+N)/C)增大,而酸解脱糖后(O+N)/C则减小。
2.Sorption nonlinearity was found to be a function of the polarity index of sediments natural organic matter(NOM), suggesting that the degree of condensation of NOM, characterized by its polarity index, was correlated with the sorption behavior of 1,2,4-trichlorobenzene.研究表明,所有的吸附等温线均表现出明显的非线性,且非线性的程度与以极性指数(O+N)/C呈负相关关系,表明NOM的聚合度(以极性指数为表征)直接影响着吸附非线性程度。
3.According to Kier’s molecular connectivity coefficient theory, the polarity index which is on the base of molecular connectivity coefficient and functional groups contribution index was used to denote polarity.根据Kier的分子连接性理论,利用分子连接性指数与官能团贡献参数得到的极性指数来推断溶剂的极性,根据萃取剂极性指数与被分离体系中各组分极性指数的差异来选择萃取剂,即萃取剂的极性指数与被萃取组分的极性指数差异尽可能小而于其他组分的极性指数差异大。
2)bond polar index键极性指数加和
3)climate extremum index气候极值性指数
4)extreme-value index极值指数
1.This article extends the moment estimator of the extreme-value index and proposes an extended moment estimator asIt s strong and weak consistency is proved and asymptotical distribution is derived.本文对极值指数的矩估计量给以推广,提出一种新的估计量——推广的矩估计量: γ_(k,n)=M_n~(1)+1-(r-1)[r(1-(M_n~(1)M_n~(r-1))/(M_N~(r))]~(-1)主要证明了该估计量的相合性,得到了其渐近分布。
英文短句/例句
1.Asymptotic Properties for a Kind of Negative Pickands-type Estimator and Smoothing Positive Index Estimator;一类负极值指数Pickands型估计量和平滑正极值指数估计量的渐近性质
2.Threshold Selection in Tail Index Estimation Based on Exponential Regression Model;基于指数回归模型的极值指数估计的门限选择
3.An Algorithm in Decision Fusion System and a Kind of Pickands-type Estimator for the Extreme Value Index;决策融合算法与极值指数的Pickands型估计
4.The Strong and Weak Consistency of Conditional Moment Estimator for Extreme Index;极值指数条件矩估计量的强弱相和性
5.Estimation and Research of Extreme Value Index of the General Extreme Value Distribution in the Stock Market;股票市场中的广义极值分布的极值指数的估计和研究
6.A New Method of Selecting the Sample Fraction for the Estimation of the Extreme Value Index;极值指数估计中的一种关于样本分割的新方法
7.A New Class of Estimator and Convergence Property of the Endpoint Estimators;极值指数估计量和尾端点估计量的收敛性
8.Research on Wavelet Packet Energy Changeable Limit Index Used in Bridge Alarming System桥梁预警系统中小波包能量变异极值指数预警指标的可行性研究
9.The Sufficient and Necessary Conditions for the Domains of Attraction and Conditional Moment Estimator for the Extreme Index;分布函数属于吸引场的充要条件及极值指数的条件矩估计量
10.Extremal Graphs with Respect to Merrifield-Simmons Index of Unicyclic Graphs单圈图的Merrifield-Simmons指数的极值图
11.is the fractional number of data points to exclude from the calculation为一分数,指定数据点中要消除极值的比例。
12.The Application of Extreme Value Theory to Risk Measurement Based on SSE-180 Index极值理论在风险度量中的应用——基于上证180指数
13.A maximum or minimum value of a function.极大值,极小值函数的最大值或最小值
14.Calculating VaR with the Extreme Value Theory--An Empirical Analysis of Hang Seng Index;应用极值理论计算在险价值(VaR)——对恒生指数的实证分析
15.VaR Based on EVT and Its Empirical Research on Shanghai-Shenzhen 300 Index基于极值理论的风险价值(VaR)方法及对沪深300指数的实证分析
16.Bicyclic Graphs with Extremal Kirchhoff Index;双圈图的Kirchhoff指标极值
17.The Method to Set Margin Levels of Index Futures and Its Empirical Study--The Application of EVT;我国指数期货保证金水平设定方法及其实证研究——极值理论的应用
18.Discussion on the Conditional Extremum of Three Variable Function Through Unconditional Extremum;用无条件极值判定多元函数条件极值
相关短句/例句
bond polar index键极性指数加和
3)climate extremum index气候极值性指数
4)extreme-value index极值指数
1.This article extends the moment estimator of the extreme-value index and proposes an extended moment estimator asIt s strong and weak consistency is proved and asymptotical distribution is derived.本文对极值指数的矩估计量给以推广,提出一种新的估计量——推广的矩估计量: γ_(k,n)=M_n~(1)+1-(r-1)[r(1-(M_n~(1)M_n~(r-1))/(M_N~(r))]~(-1)主要证明了该估计量的相合性,得到了其渐近分布。
5)Polarized exponent极化指数
1.For scattering from a fractional Brownian motion(fBm)rough sea surface at LGA condition,the modified values at different incidence angle were obtained by HSPM,the behavior of scattering with different fractal dimension at LGA was analyzed,the polarized exponent of co-polarized scattering wit.针对粗糙表面低掠入射散射特性求解的大误差问题,采用高阶微扰法研究了分形布朗运动粗糙表面在低掠入射条件下的散射特性,计算了高阶微扰法在低掠入射时的修正值,比较了高阶场量和阴影函数对低掠入射的修正效应,讨论了不同分维数下低掠入射时的散射系数,分析了低掠入射下极化指数与不同幂次正割函数的拟合逼近问题,修正了Ngo等人的结论。
6)extreme value index极值指数
1.Estimation and Research of Extreme Value Index of the General Extreme Value Distribution in the Stock Market;股票市场中的广义极值分布的极值指数的估计和研究
2.The paper discusses extreme value index estimation under moderate right censoring.讨论在实际中常常会碰到的删失数据情形下的极值指数估计问题。
3.One kind of heteroscedasticity testing method was proposed through extreme value theory and extreme value index estimator.应用极值理论,通过极值指数估计量,提出了一种可行的对异方差的检验方法。
延伸阅读
迁移效率指数、偏好指数和差别指数迁移效率指数、偏好指数和差别指数 迁移效率指数、偏好指数和差别指数迁移效率指数是用于测定两地间人口迁移效率的指标。它是净迁移对总迁移之比。计算公式为:EIM一摇寿纂拼又‘。。上式中,}人么夕一材方}为i、]两地净迁移人数;从少+材户为i、]两地总迁移人数;El入了为迁移效率指数。 EIM的取值范围为。至100,如某一地区的值越大,反映迁移的的影响也越大。如果计算i地区与其他一切地区之间的人口迁移效率指数EIM厂,则: }艺材。一芝Mj、}EIM汀艺。+乏M,(j笋i) 迁移偏好指数是从一个地区向另一地区的实际迁移人数与期望迁移人数之比。计算公式为:____M.___材尸2行一:一二子一一不石一二,么M“ 了厂‘.厂‘、八 }二不十二六二1 、厂厂7上式中,M“为从i地迁到j地的实际迁移量;艺材。为总的人口迁移量;尸为总人口;M尸I,j为迁移偏好指数。通过计算迁移偏好指数,可以反映各地区的相对引力。 迁移差别指数是反映具有某种特征的迁移人口与非迁移人口区别的指数。例如,专业技术人员的人数所占比重,各种文化程度人数所占比重等,以便研究人才流失和其他间题。计算公式为:M‘从IMD、一翌不丝xl。。 .义V‘ N上式中,M为迁移人数;M,为具有i特征的迁移人数;N为非迁移人数;N‘为具有i特征的非迁移人数;了八了D、为迁移差别指数。
