Results 291 to 300 of about 63,809,003 (360)

Advances, limitations and prospects of nondestructive testing and evaluation of thick composites and sandwich structures: A state-of-the-art review

, 2021
In recent years, composite materials have gained popularity in numerous high-tech and engineering applications, owing to their outstanding physico-mechanical properties.
Walter Nsengiyumva, Shuncong Zhong, Jiewen Lin, Qiukun Zhang, Jianfeng Zhong, Yuexin Huang   +5 more
semanticscholar   +1 more source

Database Organization and Searching with E-State Indices

SAR and QSAR in Environmental Research, 2001
The electrotopological state (E-State) and its extension, the atom-type E-State, is presented as a representation of atom and molecular fragment structure useful for chemical database organization and management. An approach to database organization, using substituted esters and benzene derivatives as examples, reveals the descriptive power of the E ...
L B, Kier, L H, Hall
openaire   +2 more sources

E-State Structuralism: A Theoretical Method

American Sociological Review, 1986
This paper unifies two strands of theoretical method in sociology. On the one hand, the structuralist or network program of research involves the fundamental rule that basic data and analytic procedures of sociology must focus on social relations. This leads to theories about structural stabililty or change, for example, although the network approach ...
Thomas J. Fararo, John Skvoretz
openaire   +1 more source

Database Organization and Similarity Searching with E-State Indices

ChemInform, 2001
Any approach to the quantitation of atoms or fragments within a molecule must be built upon the context and their relationships operating within this complex system. We can view each atom present in a molecule as existing in a field within a molecule in which all other atoms share and participate.
Lemond B. Kier, Llowell H. Hall
openaire   +1 more source

The E-state in database analysis: the PCBs as an example

Il Farmaco, 1999
Abstract The electrotopological state (E-state) is presented as a representation of atom and molecular fragment structure useful for structure–activity analysis and chemical database management. The E-state formalism is presented along with its extension to the atom-type E-state formalism.
Lemont B Kier, Lowell H Hall
openaire   +1 more source

Induction of Escherichia coli into a VBNC state through chlorination/chloramination and differences in characteristics of the bacterium between states.

Water Research, 2018
Many pathogens can enter into a viable but nonculturable (VBNC) state in response to harsh environmental stresses. Bacteria in this state can retain certain features of viable cells, such as cellular integrity, metabolic activity, or virulence and may ...
Sheng Chen, Xi Li, Yahong Wang, Jie Zeng, Chengsong Ye, Xianping Li, Lizheng Guo, Shenghua Zhang, Xin Yu   +8 more
semanticscholar   +1 more source

Estimation of Aqueous Solubility of Chemical Compounds Using E-State Indices

Journal of Chemical Information and Computer Sciences, 2001
The molecular weight and electrotopological E-state indices were used to estimate by Artificial Neural Networks aqueous solubility for a diverse set of 1291 organic compounds. The neural network with 33-4-1 neurons provided highly predictive results with r(2) = 0.91 and RMS = 0.62.
Igor V. Tetko, Vsevolod Yu. Tanchuk, Tamara N. Kasheva, Alessandro E. P. Villa   +3 more
openaire   +3 more sources

The E-State as the Basis for Molecular Structure Space Definition and Structure Similarity

Journal of Chemical Information and Computer Sciences, 2000
The electrotopological state (E-state) is presented as a representation of molecular structure useful for definition of a space for chemical structures. This E-state representation provides the basis for chemical database management. The E-state formalism is presented along with its extension to the atom-type E-state.
Lowell H. Hall, Lemont B. Kier
openaire   +2 more sources

A polaron mechanism for the Y and E states of excimer crystals

Journal of Luminescence, 1990
Abstract We present a model of excimer formation in dimerized materials such as α-perylene. Exact diagonalization of a model Hamiltonian identifies the Y and E states inferred from excimer fluorescence spectra with antisymmetric and symmetric pair states of an exciton confined to a dimer.
Ten-Ming Wu, David W. Brown, Katja Lindenberg   +2 more
openaire   +1 more source

Ultrastable Anode Interface Achieved by Fluorinating Electrolytes for All-Solid-State Li Metal Batteries

, 2020
All-solid-state Li metal batteries (ASSLMBs) have attracted significant attention because of their high energy density and improved safety.
Feipeng Zhao, Qian Sun, Chuang Yu, Shumin Zhang, Keegan Adair, Sizhe Wang, Yulong Liu, Yang Zhao, Jianwen Liang, Changhong Wang, Xiaona Li, Xia Li, Wei Xia, Ruying Li, Huan Huang, Li Zhang, Shangqian Zhao, Shi-gang Lu, X. Sun   +18 more
semanticscholar   +1 more source