Results 231 to 240 of about 64,427 (263)

A New Topological Index for QSPR of Alkanes

Journal of Chemical Information and Computer Sciences, 1998
A new topological index Xu based on the adjacency matrix A and the distance matrix D is derived in this paper. The index, which is very simple to calculate and also has good discrimination of alkane isomers, is used to correlate with the selected physicochemical properties of a wide range of alkanes.
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On reciprocal molecular topological index

Journal of Mathematical Chemistry, 2007
We report some properties of the reciprocal molecular topological index RMTI of a connected graph, and, in particular, its relationship with the first Zagreb index M-1. We also derive the upper bounds for RMTI in terms of the number of vertices and the number of edges for various classes of graphs, including Kr+1 -free graphs with r >= 2, quadrangle ...
Zhou, Bo, Trinajstić, Nenad
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Molecular topological index: a relation with the Wiener index

Journal of Chemical Information and Computer Sciences, 1992
Douglas J. Klein, Zlatko Mihalic, Dejan Plavsic, Nenad Trinajstic   +3 more
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The Index and Some Plane Topology

1979
In this chapter we complete the preliminary investigations of Chapter I on the topology of the plane. The chief tools are the index and deformation and extension techniques. The former rests squarely on the theory of the exponential function developed in the last chapter.
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Charge Indexes. New Topological Descriptors

Journal of Chemical Information and Computer Sciences, 1994
Jorge Gálvez, Ramón García-Domenech, M. Teresa Salabert-Salvador, Rosa Soler   +3 more
openaire   +1 more source

A very high-resolution refractive index sensor based on hybrid topology of photonic crystal cavity and plasmonic nested split-ring resonator

Photonics and Nanostructures - Fundamentals and Applications, 2022
Mohammad Danaie, Hassan Kaatuzian, Leila Hajshahvaladi   +2 more
exaly  

The Index and Some Plane Topology

Cornerstones, 2021
Robert B Burckel, Burckel Robert B
exaly  

Design of Optical Circuit Devices Using Topology Optimization Method With Function-Expansion- Based Refractive Index Distribution

IEEE Photonics Technology Letters, 2008
Yasuhide Tsuji, Koichi Hirayama
exaly  

A performance index for topology and shape optimization of plate bending problems with displacement constraints

Structural and Multidisciplinary Optimization, 2001
Yi Min Xie, G P Steven, G P Steven
exaly  

Broadband Terahertz Wavefront Engineering Based on Topology Optimization of Refractive Index in Non-Dielectric Structures

2022
Yasuaki Monnai
exaly