Results 21 to 30 of about 169,022 (264)

The Tailored CFD Package ‘containmentFOAM’ for Analysis of Containment Atmosphere Mixing, H₂/CO Mitigation and Aerosol Transport

Fluids, 2021
The severe reactor accident at Fukushima Daiichi Nuclear Power Plant (2011) has confirmed the need to understand the flow and transport processes of steam and combustible gases inside the containment and connected buildings.
Stephan Kelm, Manohar Kampili, Xiongguo Liu, Allen George, Daniel Schumacher, Claudia Druska, Stephan Struth, Astrid Kuhr, Lucian Ramacher, Hans-Josef Allelein, K. Arul Prakash, G. Vijaya Kumar, Liam M. F. Cammiade, Ruiyun Ji   +13 more
doaj   +1 more source

Hydrogen Safety by Design: Exclusion of Flame Blow-Out from a TPRD

Hydrogen
Onboard hydrogen storage tanks are currently fitted with thermally activated pressure relief devices (TPRDs), enabling hydrogen to blowdown in the event of fire.
Mina Kazemi, Sile Brennan, Vladimir Molkov   +2 more
doaj   +1 more source

New technical solutions for the design of NPP passive safety systems [PDF]

Nuclear Energy and Technology
The paper describes the new principle of passive NPP safety systems designing, in which the natural circulation of working fluid or gas is replaced by forced circulation in order to increase it’s capacity.
Sergey L. Soloviev, Denis G. Zaryugin, Sergey G. Kalyakin, Sergey T. Leskin, Dmitry S. Soloviev   +4 more
doaj   +3 more sources

Computational Fluid Dynamics Model for Analysis of the Turbulent Limits of Hydrogen Combustion

Fluids, 2022
This paper presents a novel numerical approach for assessing the turbulent limits of hydrogen combustion. In the framework of this approach, the premixed combustion is studied numerically in the externally generated turbulent field with defined ...
Ivan Yakovenko, Alexey Kiverin, Ksenia Melnikova   +2 more
doaj   +1 more source

Development of Standards for Hydrogen Safety [PDF]

E3S Web of Conferences, 2020
Safety standards are foundation for the deployment and development of hydrogen industry. In this paper, standards for hydrogen safety published by ISO, IEC and SAC are summarized and discussed. Standard framework of hydrogen safety is analysed. ISO standards are mainly focused on general safety standards and safety standards of hydrogen production. IEC
Yang Yanmei, Xu Haigang, Lin Ling, Bao Wei, Zhang Bangqiang, Ai Bin   +5 more
openaire   +2 more sources

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Lightweight grape leaf disease recognition method based on transformer framework

Scientific Reports
Grape disease image recognition is an important part of agricultural disease detection. Accurately identifying diseases allows for timely prevention and control at an early stage, which plays a crucial role in reducing yield losses.
Ning Zhang, Enxu Zhang, Guowei Qi, Fei Li, Cheng Lv   +4 more
doaj   +1 more source

Stability of non-premixed turbulent methane flames: Numerical simulations of the critical diameter and flame stability limits

Fuel Processing Technology
A Computational Fluid Dynamics (CFD) model is developed and validated against experimental data to predict the critical diameter and stability limits of non-premixed turbulent methane flames.
Mina Kazemi, Sile Brennan, Vladimir Molkov   +2 more
doaj   +1 more source

Effect of terahertz irradiation on DNA damage repair in living cells

FEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno, Shota Yamazaki, Hiromichi Hoshina, Masahiko Harata   +3 more
wiley   +1 more source

An ESG-ConvNeXt network for steel surface defect classification based on hybrid attention mechanism

Scientific Reports
Defect recognition is crucial in steel production and quality control, but performing this detection task accurately presents significant challenges.
Ning Zhang, Ziyang Liu, Enxu Zhang, Yuanqi Chen, Jie Yue   +4 more
doaj   +1 more source