Investigation of the effects of gamma irradiation with different doses on the mechanical and structural properties of Teflon [PDF]
مجله علوم و فنون هستهای, 2021 Due to the importance of Teflon in the military industries, especially the missile and aerospace industries, the study of the effect of different nuclear radiation on the physical properties of this polymer can greatly assist the fabrication and ...
H. Soofi +3 more
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Modeling and robust control system design for plasma current in damavand tokamak [PDF]
مجله علوم و فنون هستهای, 2021 In the present work, a dynamic model of plasma current and its relation with the currents of active coils is derived using the Hamilton-Lagrange and energy functions. Model parameters of the plasma current are calculated using the analytical approach and
H. Zandi +3 more
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Acid leaching kinetic study of vanadium from Saghand –e- Yazd magnetite ore [PDF]
مجله علوم و فنون هستهای, 2020 In the present research, the vanadium recovery mechanisms from Saghand –e- Yazd magnetite ore by sodium carbonate was studied as oxidant and acid leaching technology, and also the effect of the different parameters on the kinetics of the vanadium ...
D. Ghoddocy Nejad +2 more
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Investigating the created microstructures and the induced changes in optical properties of PMMA by irradiation of a CO2 laser [PDF]
مجله علوم و فنون هستهای, 2021 Laser irradiation of polymers leads to the change of structural and optical properties. Because of its favorable features like cheapness and biocompatibility, poly (methyl methacrylate) (PMMA) is one of those polymers that is in widespread use in ...
S. Sohrabi +4 more
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Feasibility study of Promethium-147 production as an industrial radionuclide through neutron irradiation of neodymium in Tehran Research Reactor (TRR) [PDF]
مجله علوم و فنون هستهای, 2020 Promethium is one of the rare earth elements of Lanthanides. This element is no found on the earth’s crust. All its isotopes are radioactive. The isotope 147Pm is a pure beta emitter and very useful in industry because of its radioactive specifications.
S.E. Hoseini +4 more
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Optimization of pump laser conditions for production of maximum gain of Ne-like Ge soft x-ray laser [PDF]
مجله علوم و فنون هستهای, 2021 Laser produced plasma can be used as the sources of soft X-ray laser. The ability to control the laser quality and its gain coefficient by controlling laser and plasma’s parameters is one of the advantages of this method.
G. Ghani Moghadam +3 more
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LBLOCA accident investigation using TRACE code in a VVER-1000 reactor [PDF]
مجله علوم و فنون هستهای, 2020 The loss of coolant accident is due to the reduction of the coolant fluid volume in the first circuit. The direct cause of this accident is the mechanical failure or fatigue in the material of the first circuit components during the power plant operation.
S. Ekbatani-Amlashi +2 more
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Synthesis of Uranium-Thorium dioxide nano powder using supercritical hydrothermal method [PDF]
مجله علوم و فنون هستهای, 2021 Due to the limited uranium reserves and advantages of thorium fuels over uranium fuels, the development of the thorium fuel cycle in various countries including Iran, has been considered significantly.
A. H. Chenari, S.J. Ahmadi, F. Zahakifar
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The effect of electron characteristics on the optimum transport into the dense pre-plasma for fast-shock ignition concept [PDF]
مجله علوم و فنون هستهای, 2020 In this paper, the effect of the initial electron energy with E0=1-10 MeV, its distribution function and pre-plasma background temperature T=0.5-10 keV on the optimum transport into the dense fuel with the density ρc=292-828 g.cm-3 have been investigated
S.A. Ghasemi, S. Faghih, B. Khanbabaei
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Deterministic analysis of emergency AC power recovery during SB-LOCA along with LOOP accident in Bushehr nuclear power plant [PDF]
مجله علوم و فنون هستهای, 2021 The availability of current AC electrical power is essential for the safe operation and accident recovery of commercial nuclear power plants. Loss of offsite power (LOOP) considers as one of the significant post-Fukushima accidents.
S.A. Hosseini, A.S. Shirani
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