Results 71 to 80 of about 95,843 (262)

NEW CALCULATIONS OF PROTON CYCLOTRON PRODUCTON CROSS SECTIONS FOR SOME MEDICAL RADIOISOTOPES AND TARGET NUCLEI USED ON THE SPALLATION NEUTRON SOURCES

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2009
: In this study, the new calculations on the excitation functions of 18O(p,n)18F, 68Zn(p,n)68Ga, 68Zn(p,2n)67Ga, 112Cd(p,2n)111In, 209Bi(p,n)209Po and 232Th(p,n)232Pa reactions have been carried out in the 5- 50 MeV incident proton energy range. In these
Emine Gamze AYDIN
doaj  

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Numerical Analysis of the Characteristic Chemical Timescale of a C₂H₄/O₂ Non-Premixed Rotating Detonation Engine

Energies
A three-dimensional numerical investigation using ethylene–oxygen was conducted to examine the characteristics of detonation waves in a non-premixed rotating detonation engine (RDE) across three equivalence ratio conditions: fuel-lean, stoichiometric ...
Mohammed Niyasdeen Nejaamtheen, Bu-Kyeng Sung, Jeong-Yeol Choi   +2 more
doaj   +1 more source

Differential cross sections of gamma-ray emission in the interactions of fast neutrons with cadmium [PDF]

Ядерна фізика та енергетика, 2011
Experimental measurements of the γ-ray spectrum in (n, xγ) reactions induced by the interaction of fast neutrons with Cadmium nuclei were performed using time-of-flight technique.
B. M. Bondar, V. M. Bondar, O. M. Gorbachenko, I. M. Kadenko, B. Yu. Leshchenko, Yu. M. Onishchuk, V. A. Plujko   +6 more
doaj  

Direct Numerical Simulation of Chemical Non-equilibrium Turbulent Flow [PDF]

, 2013
Temporally evolving high-temperature turbulent channel flows (at M∞ = 6 and 10 and M∞ = 12000) are performed by using direct numerical simulation with the assumption of local thermal equilibrium and chemical non-equilibrium.
Li XL(李新亮), Chen XP(陈小平), Li, XL (reprint author), Inst Mech, Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.   +2 more
core   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

THE CALCULATIONS OF (P,XN) REACTIONS CROSS SECTIONS OF 203, 205Tl TARGET NUCLEI BY USING PROTON CYCLOTRON

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2009
: In this study, the new calculations on the excitation functions of 203Tl(p,2n)202Pb, 203Tl(p,3n)201Pb, 203Tl(p,4n)200Pb, 205Tl(p,2n)204Pb, 205Tl(p,3n)203Pb and 205Tl(p,4n)202Pb reactions have been carried out in the 5-70 MeV incident proton energy ...
Abdullah AYDIN
doaj  

Using Thomas-Fermi Formula of Level Density Parameter to Find New Single Particle Level Density Formula

Ibn Al-Haitham Journal for Pure and Applied Sciences
The level density is a parameter that has great importance in the theoretical nuclear calculation, and it is considered a key of many theoretical studies, therefore, the level density in pre-equilibrium reaction or what is the so-called accurate partial
Hadeer K. Mohammed, Ali D. Salloum
doaj   +1 more source

The Symmetry Energy of the Nuclear EoS: A Study of Collective Motion and Low-Energy Reaction Dynamics in Semiclassical Approaches

Frontiers in Physics, 2019
In the framework of mean-field based transport approaches, we discuss recent results concerning collective motion and low-energy heavy ion reactions involving neutron-rich systems.
Stefano Burrello, Maria Colonna, Hua Zheng, Hua Zheng   +3 more
doaj   +1 more source