距离拓扑指数,distance topological index
1)distance topological index距离拓扑指数
1.Based on the Wiener index(W),adistance topological index(T) is proposed.基于Wiener指数(W),构建距离拓扑指数(T)。
2)topological distance electronegative index拓扑距离电负性指数
1.This text took the proportional electronegative of the piece of PCDEs to build a row matrix,and combined the molecular distance matrix with row matrix to build a new index——topological distance electronegative index.以类原子的形式处理多氯联苯醚苯环上的基团(CH和CCl),构建分子的距离矩阵,以分子基团的均衡电负性对原子进行着色建立行矩阵,结合分子的距离矩阵和行矩阵,同时考查分子的相互间的作用情况,建立分子的结构参数——拓扑距离电负性指数。
3)distance harmonic index距离调和拓扑指数
1.By replacing the topological distance with the related ratio of bond length to C-C bond length,thedistance harmonic index Te based on distance matrix D was derived for studying the QSPR/QSAR of aliphatic alcohols.为了研究脂肪醇结构-性质(活性)的定量关系,用相对键长取代拓扑距离,结合距离矩阵,提出了距离调和拓扑指数Te,Te和醇的许多理化性质和生物活性具有良好的相关性。
4)topological distance eigenvalue index拓扑距离特征指数
1.Based on the molecular topological theory,a new method for calculating apex atomic(group) characteristic valueδ(?) of polychlorinated biphenyls(PCBs) was proposed and a molecular structural parameter—topological distance eigenvalue index(TDEI) was built.根据分子拓扑理论,提出1种新的多氯联苯(PCBs)化合物分子中,顶点原子(基团)点价值δ_i的计算方法,据以构建分子的结构参数——拓扑距离特征指数(TDEI);同时考虑分子体积以及氯原子在苯环上的位置和数目对PCBs性质的影响,引入分子体积参数(V_R)和基团定位指数(D),然后,采用多元线性回归法,分别建立了PCBs的正辛醇-水分配系数(lgK_(OW))和水溶解度(-lgS_w)的定量结构-性质相关模型,其相关系数分别达到0。
英文短句/例句
1.Topological distance eigenvalue index(TDEI) f0r QSPR study of PCBs拓扑距离特征指数对多氯联苯的QSPR研究
2.Graph Distance Metric Combining Topological Subgraph and Graph Edit Distance基于拓扑子图与编辑距离的距离测量方法
3.A novel topological index called Y-index was developed based simultaneously on the bond distance and bond adjacent matrices for a molecular.基于分子的键距矩阵和键联矩阵提出一种新的分子拓扑指数Y.
4.Topological Index of Alcoholic Structure and Prediction of Chromatography Retention Index醇拓扑指数对其色谱保留指数的预测
5.A few information topological indices for mark on properties of alkyl benzene compounds;一个表征烷基苯类化合物性质的信息拓扑指数I_s
6.Off-line Handwritten Mathematic Symbols Recognition Using Topological Feature Construction拓扑结构特征提取及其在脱机手写数学符号识别中的研究与应用
7.The Topological Connection of the Coefficients of the Characteristic Polynomial and the Molecular Fragments本征多项式系数与分子片的拓扑联系
8.Research on the Life Characteristic of Internet Macroscopic Topology;Internet宏观拓扑结构的生命特征研究
9.Internet Topology Characteristics Analysis Based on Complex Network Theory;基于复杂网络理论的Internet拓扑特征分析
10.The Topological Characteristics of Epicyclic Gear Trains Transmission and Automatic Generation;行星传动拓扑特征及计算机自动生成
11.A Study of Peer-to-Peer Systems Based on Topological Properties of Overlay基于重叠网拓扑特征的P2P系统研究
12.Analysis of Basic Feature Evolution of AS-Level Internet TopologyAS级Internet拓扑基本特征量演化分析
13.THE RELATIVITY BETWEEN TOPOLOGICAL INDEX mG AND PROPERTIES OF INORGANIC COMPOUNDS;拓扑指数~mG与无机物性质的相关性
14.The topological index of orbit average energy ~mM and its application;轨道平均能拓扑指数~mM及其应用
15.A Topological Index of Extranuclear Electron of Lanthanide Atoms镧系元素的核外电子拓扑指数及应用
16.Topoloical index X for the QSPR study of alphatic alcohols拓扑指数X用于脂肪醇的QSPR研究
17.A New Topological Index X for the QSAR Studies of Olefins一种新拓扑指数X用于烯烃的QSAR研究
18.Extract Features of Distribution Network Topology and Research Network Analysis Based on GIS;配电GIS中配网拓扑特征提取及网络拓扑分析的研究
相关短句/例句
topological distance electronegative index拓扑距离电负性指数
1.This text took the proportional electronegative of the piece of PCDEs to build a row matrix,and combined the molecular distance matrix with row matrix to build a new index——topological distance electronegative index.以类原子的形式处理多氯联苯醚苯环上的基团(CH和CCl),构建分子的距离矩阵,以分子基团的均衡电负性对原子进行着色建立行矩阵,结合分子的距离矩阵和行矩阵,同时考查分子的相互间的作用情况,建立分子的结构参数——拓扑距离电负性指数。
3)distance harmonic index距离调和拓扑指数
1.By replacing the topological distance with the related ratio of bond length to C-C bond length,thedistance harmonic index Te based on distance matrix D was derived for studying the QSPR/QSAR of aliphatic alcohols.为了研究脂肪醇结构-性质(活性)的定量关系,用相对键长取代拓扑距离,结合距离矩阵,提出了距离调和拓扑指数Te,Te和醇的许多理化性质和生物活性具有良好的相关性。
4)topological distance eigenvalue index拓扑距离特征指数
1.Based on the molecular topological theory,a new method for calculating apex atomic(group) characteristic valueδ(?) of polychlorinated biphenyls(PCBs) was proposed and a molecular structural parameter—topological distance eigenvalue index(TDEI) was built.根据分子拓扑理论,提出1种新的多氯联苯(PCBs)化合物分子中,顶点原子(基团)点价值δ_i的计算方法,据以构建分子的结构参数——拓扑距离特征指数(TDEI);同时考虑分子体积以及氯原子在苯环上的位置和数目对PCBs性质的影响,引入分子体积参数(V_R)和基团定位指数(D),然后,采用多元线性回归法,分别建立了PCBs的正辛醇-水分配系数(lgK_(OW))和水溶解度(-lgS_w)的定量结构-性质相关模型,其相关系数分别达到0。
5)topological index of distance ordinal number距序拓扑指数
6)topological distance拓扑距离
1.They are the shortesttopological distance between two atoms, the determination of the termination of the parsing process and the construction of the synthesis tree.它们是 :最短拓扑距离的求解、析分过程结束的判别以及合成树的构建 。
2.Method based ontopological distance was used to further reduce computation.使用了基于拓扑距离的方法进一步减少数值积分算法的计算量。
延伸阅读
距离①在空间或时间上相隔：天津～北京约有一百二十公里ㄧ现在～唐代已经有一千多年。②相隔的长度：等～ㄧ拉开一定的～◇他的看法和你有～。
