Ara
Toplam kayıt 77, listelenen: 11-20
Comparison of evolutionary techniques for Value-at-Risk calculation
(Springer-Verlag Berlin, 2007)
The Value-at-Risk (VaR) approach has been used for measuring and controlling the market risks in financial institutions. Studies show that the t-distribution is more suited to representing the financial asset returns in ...
Estimation of microstretch elastic moduli by the use of vibrational data
(Springer, 2007)
In the present work, a nonlinear wave theory is used for the estimation of the material properties of a "microstretch" medium. For this purpose a thin plate is considered and triplicate Chebyshev polynomial series are used ...
A parallel implementation: Real space Green's function technique
(Sage Publications, 2007-04)
We develop an MPI-based parallel algorithm to implement the real space Green's function technique for calculating the vibrational density of states corresponding to a solid. The Hamiltonian describing the interactions ...
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 ...
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 ...
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 ...
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 ...
Immunological response of frog (Rana ridibunda) skin exposed to continuous dark
(Wiley-Blackwell Publishing, 2009-07)
[No abstract available]
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 ...
Update and revision of Turkish air quality regulation
(Inderscience Enterprises LTD, 2009)
The Air Quality Assurance Regulation (AQAR) was issued on October 1986. This regulation was basically a direct translation of the German TA-Luft of 1984. The main purpose of AQAR was to control the effect of industry, ...