Results 31 to 40 of about 5,499 (259)

Modeling of Dynamic Operation Modes of IVG.1M Reactor

Energies, 2023
This paper presents the results of a calculation code approach providing a solution to the point kinetics problem for the IVG.1M research reactor of the National Nuclear Center of the Republic of Kazakhstan and allowing the simulation of dynamic ...
Ruslan Irkimbekov, Alexander Vurim, Galina Vityuk, Olzhas Zhanbolatov, Zamanbek Kozhabayev, Artur Surayev   +5 more
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

Advanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee, Sofía Cruces, Xiaohua Liu, Yang Chen, Vasilis A. Maroufidis, Janghyun Jo, Lukas Völkel, Dennis Braun, Michael Möller, Leon Brackmann, Holger Kalisch, Michael Heuken, Andrei Vescan, Rafal E. Dunin‐Borkowski, Joachim Mayer, Stefan Wiefels, Max C. Lemme   +16 more
wiley   +1 more source

Irradiation‐Induced Spin Bath Evolution and as‐Grown Hydrogen Defects in CVD Diamond Revealed by NV‐Based DEER Spectroscopy

Advanced Functional Materials, EarlyView.
Here, we provide the reader with the current state of the art in the fabrication of high‐T2‐coherence diamond, optimized through the use of double electron–electron resonance (DEER) spectroscopy. We reveal the main as well as yet unidentified spin defects, the reduction of which is essential for reducing the spin bath and fabricating materials for ...
Olga Rubinas, Jeroen Prooth, Michael Petrov, Remy Vandebosch, Emilie Bourgeois, David Chvátil, Milos Nesladek   +6 more
wiley   +1 more source

Reactor physics fast calculation method based on model order reduction and machine learning

Nuclear Engineering and Technology
The rapid development of artificial intelligence technology has provided new ideas and methods for reactor physics calculations. Based on AI technology, a fast calculation method for reactor physics has been established, which combines model order ...
Chen Zhao, Qinyi Zhang, Bin Zhang, Jiangyu Wang, Jiayi Liu, Lianjie Wang, Bangyang Xia, Xiaoming Chai, Xingjie Peng   +8 more
doaj   +1 more source

Neutronics and Thermal-hydraulics Coupling High Fidelity Simulation of PWR Core with Heavy Reflector

Yuanzineng kexue jishu, 2022
The reflector can reduce the neutron leakage from the reactor core, increase the neutron economy, and improve the fuel utilization. In commercial PWR, light water is usually used as the main body, combined with stainless steel shroud to form radial ...
LIU Chanyun;YANG Bo;TANG Chuntao;PENG Lianghui;BI Guangwen;HONG Qian;YANG Weiyan
doaj  

Consolidation of the new nuclear calculation methodology of the IEA-R1 reactor

Revista Internacional de Ciências, 2018
La méthodologie de calcul neutronique et thermo-hydraulique IEA-R1 est composée de 5 codes de calcul du domaine de la physique des réacteurs, qui ont une dépendance symbiotique les uns par rapport aux autres. Puisque les sorties de chaque code seront utilisées pour générer l'entrée du code suivant.
Giovanni Laranjo de Stefani, Thadeu das Neves Conti   +1 more
openaire   +3 more sources

Single‐Step Recovery of Water from Stable Crude Oil‐Water Emulsion Using Surface Engineered Hybrid Inorganic‐Polymer Membranes

Advanced Functional Materials, EarlyView.
Atomic layer deposition is used to conformally surface engineer polymeric membranes to fabricate inorganic–organic hybrid membranes. These membranes have exceptionally strong attraction toward water even in high oil containing emulsions, which leads to an extremely strong hydration layer at the interface.
Bratin Sengupta, Yining Liu, Gaurab Sarkar, Rouke Cai, Katrina Sparks, Chi Thang Nguyen, Tamar Segal‐Peretz, Seth B. Darling, Jeffrey W. Elam   +8 more
wiley   +1 more source

Precise calculation of neutron-capture reactions contribution in energy release for different types of VVER-1000 fuel assemblies

EPJ Web of Conferences, 2017
Precise calculation of energy release in a nuclear reactor is necessary to obtain the correct spatial power distribution and predict characteristics of burned nuclear fuel.
Tikhomirov Georgy, Bahdanovich Rynat, Pham Phu   +2 more
doaj   +1 more source

Optimization of preventive maintenance of nuclear safety-class DCS based on reliability modeling

Nuclear Engineering and Technology, 2022
Nuclear safety-class DCS is used for nuclear reactor protection function, which is one of the key facilities to ensure nuclear power plant safety, the maintenance for DCS to keep system in a high reliability is significant.
Hao Peng, Yuanbing Wang, Xu Zhang, Qingren Hu, Biao Xu   +4 more
doaj   +1 more source