Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 244, listelenen: 61-80
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Pre-equilibrium neutron-emission spectra of U-238 with an effective nucleon-nucleon interactions
(Pergamon-Elsevier Science Ltd, 2013)In this study, the initial exciton numbers for the target nucleus U-238 were calculated through a new method offered by Tel et al. (Ann. Nucl. Energy, 35, 220, 2008). Neutron-emission spectra produced by (n,xn) reactions ... -
(p,α) Reaction Cross Sections Calculations of Fe and Ni Target Nuclei Using New Developed Semi-empirical Formula
(Springer, 2013)Iron (Fe) and nickel (Ni) are important fusion structural materials in reactor technology. The gas production in the metallic structure arising from many different types of nuclear reactions has been a significant damage ... -
Silver and fluoride doped hydroxyapatites: Investigation by microstructure, mechanical and antibacterial properties
(Elsevier Sci Ltd, 2013)Hydroxyapatite co-doped with Ag+ and F- ions was synthesized by the precipitation method and sintered at 1100 degrees C for 1 h. Samples were characterized by density, X-ray diffraction, Fourier transform infrared spectroscopy, ... -
Investigation of Lead Target Nuclei Used on Accelerator-Driven Systems for Tritium Production
(Springer, 2012)High-current proton accelerators are being researched at Los Alamos National Laboratory and other laboratories for accelerator production of tritium, transmuting long-lived radioactive waste into shorter-lived products, ... -
Investigation of Some Stellar Iron Group Fusion Materials for (n, p) Reactions
(Springer, 2012)In this study, we present the results of a careful analysis of cross sections of some important iron (Fe) group target elements (20 a parts per thousand currency sign Za parts per thousand currency sign28) for astrophysical ... -
Solving the constant source problem for the quadratic anisotropic scattering kernel using the modified F-N method
(Carl Hanser Verlag, 2012)In this work, the F-N method with different numerical approximations is used to solve the constant source problem for the quadratic anisotropic scattering kernel. Casev eigenfimctions and the orthogonality relations of ... -
The Effect of the Number of Simulations on the Exponents Obtained by Finite-Size Scaling Relations of the Order Parameter and the Magnetic Susceptibility for the Four-Dimensional Ising Model on the Creutz Cellular Automaton
(Springer/Plenum Publishers, 2012)The four-dimensional Ising model is simulated on the Creutz cellular automaton using finite-size lattices with linear dimension 4a parts per thousand currency signLa parts per thousand currency sign8. The exponents in the ... -
Microwave-induced synthesis of alginate-graft-poly(N-isopropylacrylamide) and drug release properties of dual pH- and temperature-responsive beads
(Elsevier Science Bv, 2012)The first decade of the 21st century saw an increasing interest in the development of devices and biomaterials for delivery of bioactive substances that can be controlled by external stimuli. This study deals with the ... -
Calculation of Equilibrium and Pre-equilibrium He-4-Emission Spectra at 62 MeV Proton Incident Energy
(Springer, 2011)In this study, the He-4-emission cross sections for Al-27, Fe-54,Fe-56, Au-197, Pb-208 and Bi-209 target nuclei have been calculated at 62 MeV proton energy. In these calculations, the pre-equilibrium effects have been ... -
Investigation of Some Structural Fusion Materials for (n, alpha) Reactions at the 14-15 MeV Energy Region
(Springer, 2011)In fusion reactor structures, a serious damage mechanism has been gas production in the metallic resulting from diverse nuclear reactions, mainly through (n, alpha) and (n, p) reactions above a certain threshold energy. ... -
A Study on Be8-18 Isotopes Used on Neutron Multiplier in Reactor Design
(Springer, 2011)Neutronic characterization and development of structural materials, neutron multiplier materials, tritium breeders are primarily important for fusion and hybrid reactors. In order to improve neutron economy, beryllium, ... -
An Investigation for Ground State Features of Some Structural Fusion Materials
(Springer, 2011)Environmental concerns associated with fossil fuels are creating increased interest in alternative non-fossil energy sources. Nuclear fusion can be one of the most attractive sources of energy from the viewpoint of safety ... -
The effect of the initial exciton numbers on Fe-54,Fe-56(p, xp) Pre-Equilibrium Reactions
(Maik Nauka/Interperiodica/Springer, 2011)In pre-equilibrium nuclear reactions, the geometry-dependent hybrid model is applied with the use of the neutron and proton densities to investigate the effect of initial exciton numbers on the nucleon emission spectra. ... -
Odd nuclei and shape phase transitions: the role of the unpaired fermion
(World Scientific Publ Co Pte Ltd, 2011)Shape phase transitions in even and odd systems are reviewed within the frameworks of the Interacting Boson Model(IBM) and the Interacting Boson Fermion Model(IBFM), respectively and compared with geometric models when ... -
Effect of Si on austenite stabilization, martensite morphology, and magnetic properties in Fe-26%Ni-x%Si alloys
(Springer, 2011)The effect of Si on the austenite stabilization, martensite morphology, and magnetic properties in Fe-26%Ni-x%Si (x=3.5, 5, and 6) alloys have been studied by means of transmission electron microscopy (TEM) and Mossbauer ... -
Study of the pre-equilibrium mean free path constant for light and heavy nuclei for (n, xn) reactions
(Pergamon-Elsevier Science Ltd, 2011)Using pre-equilibrium reaction mechanisms, the neutron-emission spectra produced by (n, xn) reactions for some target (A = 16 similar to 238) nuclei have been calculated for incident neutron energy in the range of 15-26 ... -
Finite-size scaling relations for a four-dimensional Ising model on Creutz cellular automatons
(Amer Inst Physics, 2011)The four-dimensional Ising model is simulated on Creutz cellular automatons using finite lattices with linear dimensions 4 <= L <= 8. The temperature variations and finite-size scaling plots of the specific heat and the ... -
The Study of (n,d) Reaction Cross Sections for Some Medium Weight Targets up to 30 MeV
(Springer, 2011)In this study, neutron incident reaction cross sections for some medium target nuclei ( (44) Ca, (65) Cu, (54) Fe, (56) Fe, (57) Fe, (58) Ni, (60) Ni and (67) Zn) have been investigated for the (n,d) reaction cross sections. ... -
Effects of aging on the microstructure of a Cu-Al-Ni-Mn shape memory alloy
(Springer, 2011)The influence of aging on the microstructure and mechanical properties of Cu-11.6wt%Al-3.9wt%Ni-2.5wt%Mn shape memory alloy (SMA) was studied by means of scanning electron microscopy (SEM), transmission electron microscopy ... -
Pre-equilibrium Emission Spectra Calculations of Th-232(n,xn) Using New Evaluated Method
(Springer, 2011)The knowledge of the thorium (Th-232) cycle potentialities are required for the design of a fusion-fission (hybrid) reactor. Pre-equilibrium nuclear reactions have been used to investigate the effect of initial exciton ...