منابع مشابه
ATISA: Adaptive Threshold-based Instance Selection Algorithm
Instance reduction techniques can improve generalization, reduce storage requirements and execution time of instance-based learning algorithms. This paper presents an instance reduction algorithm called Adaptive Threshold-based Instance Selection Algorithm (ATISA). ATISA aims to preserve important instances based on a selection criterion that uses the distance of each instance to its nearest en...
متن کاملEquilibrium structure and vibrational spectra of sila-adamantane
Rajendra R. Zope, Tunna Baruah, Mark R. Pederson, and S. L. Richardson NSF CREST Center for Nanomaterials Characterization Science and Process Technology Howard University, School of Engineering, 2300 Sixth Street, N.W. Washington, D.C. 20059 Department of Physics, The University of Texas at El Paso, El Paso, TX 79958 and Center for Computational Materials Science, Code 6392, Naval Research Lab...
متن کامل[n]Sila-acenes (n=2-4): The Influence of Ring Size on the Properties
The structures and properties of [n]sila-acenes (n=2-4) were investigated by density functional theory method. The results of calculations were obtained at B3LYP/6-311G (d,p) level on model species. Energetic criteria suggest that 2-1b (n=2), 3-1b (n=3), and 4-1b (n=4) isomers enjoy stabilization. By frontier orbital analysis, these systems are among the most stable of the family. Also, calcula...
متن کاملBinding and functional properties of antimuscarinics of the hexocyclium/sila-hexocyclium and hexahydro-diphenidol/hexahydro-sila-diphenidol type to muscarinic receptor subtypes.
1. In an attempt to assess the structural requirements for the muscarinic receptor selectivity of hexahydro-diphenidol (hexahydro-difenidol) and hexahydro-sila-diphenidol (hexahydro-sila-difenidol), a series of structurally related C/Si pairs were investigated, along with atropine, pirenzepine and methoctramine, for their binding affinities in NB-OK 1 cells as well as in rat heart and pancreas....
متن کاملZinc mediated allylations of chlorosilanes promoted by ultrasound: synthesis of novel constrained sila amino acids.
A simple, fast and efficient method for allylation and propargylation of chlorosilanes through zinc mediation and ultrasound promotion is reported. As a direct application of the resulting bis-allylsilanes, three novel, constrained sila amino acids are prepared for the first time. The design and synthesis of the constrained sila analogue of GABA (γ-amino butyric acid) is a highlight of this work.
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ژورنال
عنوان ژورنال: JOURNAL OF INDIAN AND BUDDHIST STUDIES (INDOGAKU BUKKYOGAKU KENKYU)
سال: 2002
ISSN: 1884-0051,0019-4344
DOI: 10.4259/ibk.50.871