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Toplam kayıt 20, listelenen: 11-20
Eshelby tensors for a spherical inclusion in microelongated elastic fields
(Pergamon-Elsevier Science ltd, 2005-01)
Eshelby tensors are found for a spherical inclusion in a microelongated elastic field. Here. a special micromorphic model is introduced to describe the damaged material which defines the damage as the formation and the ...
Thermochemical conversion of bean pods to carbon materials and gas
(Freund Publishing House Ltd, 2008)
The preparation of activated carbons from bean pods by chemical (K(2)CO(3)) and physical (water vapor) activation was investigated. The carbon prepared by chemical activation presented more developed porous structure than ...
Relocating sensor nodes to maximize cumulative connected coverage in wireless sensor networks
(Molecular Diversity Preservation Int, 2008-04)
In order to extend the availability of the wireless sensor network and to extract maximum possible information from the surveillance area, proper usage of the power capacity of the sensor nodes is important. Our work ...
Bifurcation of drift shells near the dayside magnetopause
(Amer Geophysical Union, 2007-07-10)
Close to the dayside magnetopause, there is a region of space where each field line has two magnetic field minima, one near each cusp. That region is located around local noon, and extends about 1-2 R-e from the magnetopause. ...
On the identification of microstretch elastic moduli of materials by using vibration data of plates
(Pergamon-Elsevier Science LTD, 2008-06)
In the present work, the vibration problems of rectangular plates modeled by Eringen's microstretch theory are investigated for the identification of the upper bounds of the microstretch moduli of the plate material. The ...
Characterization of Bulgarian oil shale kerogen revealed by oxidative degradation
(Elsevier GMBH, Urban & Fischer Verlag, 2009)
A 13-step alkaline permanganate degradation of Bulgarian oil shale kerogen concentrate at ambient temperature was carried out. A high yield of oxidation products (90.1%) and a low yield of gaseous products (2.79%) were ...
An essential approach to the architecture of diatomic molecules: 2. how are size, vibrational period of time, and mass interrelated?
(Optical Soc Amer, 2004-11)
In our previous article, we arrived at an essential relationship for T the classical vibrational period of a given diatomic molecule, at the total electronic energy E-, i.e., T = [4pi(2)/(rootn(1)n(2)h)] rootgM(0)m(e) R-2, ...
An essential approach to the architecture of diatomic molecules. 1. Basic theory
(2004)
We consider the quantum mechanical description of a diatomic molecule of "electronic mass" m0e, "internuclear distance" R0, and "total electronic energy" E0e. We apply to it the Born-Oppenheimer approximation, together ...
The composition of acids in bitumen and in products from saponification of kerogen: Investigation of their role as connecting kerogen and mineral matrix
(Elsevier Science BV, 2008-11-03)
In order to obtain more information and to understand the nature of relation between organic and mineral matter in oil shales, the compositions of soluble bitumen fractions obtained by extraction from Bulgarian oil shales ...
Numerical calculations of relativistic electron drift loss effect
(Amer Geophysical Union, 2008-09-09)
It has been suggested that drift loss to the magnetopause can be one of the major loss mechanisms contributing to relativistic electron flux dropouts. In this study, we examine details of relativistic electrons' drift ...