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Valency

About: Valency is a research topic. Over the lifetime, 1632 publications have been published within this topic receiving 26141 citations.


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OtherDOI
01 Jan 2005

1 citations

Patent
20 Sep 1985
TL;DR: In this paper, the authors propose a dispersion system by suspending or solving a valency isomer as a heat-carrying substration substance in a mixed solvent consisting of water and one or more of two kinds of hydrophilic organic solvent (s).
Abstract: PURPOSE:To decrease the cost to store solar heat energy, by preparing a dispersion system by suspending or solving a valency isomer as a heat-carrying substration substance in a mixed solvent consisting of water and one or more than two kinds of hydrophilic organic solvent (s), by radiating solar rays to the dispersion system, and by storing solar energy as chemical energy, by quantitatively causing a valency isomerization reaction in the dispersion system. CONSTITUTION:A heat-carrying substance, having a property to cause an opti- chemical valency isomerization reaction in company with absorption of solar energy, is dispersed by suspension or by solution in a mixed solvent contsisting of water and hydrophilic solvent to make a dispersion system. Solar rays are radiated to the dispersion system to cause it an opti-chemical valency isomerization reaction, and then the solar energy is stored in the isomerized heat-carrying substance. The solar energy can be stored quantatively by controlling the opti-chemical valency isomerization reaction. A heat-carrying substance can be chosen from norbornadiene (NBD), NBD derivatives, condensed polycyclic aromatic compound, and so forth.

1 citations

Journal ArticleDOI
TL;DR: In this article , a Maple-based algorithm is proposed for the calculation of ve and eV-degree based topological indices from the graph adjacency matrix for starphene and fenestrene.

1 citations

01 Jan 2015
TL;DR: In this paper, the degree-based topological indices of carbon nanocones have been proposed and shown to play a vital role in QSAR/QSPR studies and correlate various physico-chemical properties of chemical compound.
Abstract: Topological indices are the global parameters defined for the simple graphs such that they give the same numerical value if the graphs are isomorphic. These numbers are of much importance because of their chemical importance, they correlate certain physico-chemical properties of certain organic compounds such hydrocarbons etc. A chemical graph is a graph which is created from some molecular structure by applying some graphical operations. Valency/degree is a local graph parameter, which is defined for every vertex as the number of connections with other vertices in a graph, just like for an atom in a molecule. Degree based topological indices play a vital role in QSAR/QSPR studies and correlate various physico-chemical properties of chemical compound. Carbon nanocones are conical structures which are allotropes of carbon having at least one dimension of the order one micrometer or smaller. In this paper, valency based topological indices of carbon nanocones are strong-minded. 2010 Mathematics Subject Classification: 05C12, 05C90

1 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202377
2022190
202119
202029
201937
201829