Results 31 to 40 of about 4,837 (261)

Comparative evaluation of response reliability during accidents in light water reactors and fast reactors

Mechanical Engineering Journal, 2020
To identify functions and facilities that are critical for ensuring safety in advanced reactors, for which only a limited usage history is available, it is necessary to consider the characteristics of each reactor type by utilizing more risk-related ...
Masaaki SUZUKI, Kazuyuki DEMACHI, Shigeru TAKAYA, Yoshitaka CHIKAZAWA   +3 more
doaj   +1 more source

Thermal-Hydraulics analysis of pressurized water reactor core by using single heated channel model [PDF]

Journal of Applied and Computational Mechanics, 2017
Thermal hydraulics of nuclear reactor as a basis of reactor safety has a very important role in reactor design and control. The thermal-hydraulic analysis provides input data to the reactor-physics analysis, whereas the latter gives information about the
Reza Akbari, Dariush Rezaei, Ahmad Gharib   +2 more
doaj   +1 more source

Hierarchical Primary‐Secondary Coordination Synchronizes Ion Flux and Sulfur Redox in Solid Polymer Electrolytes

Advanced Functional Materials, EarlyView.
Hierarchical coordination engineering redistributes Li+ from anion‐dominated pairing toward polymer‐mediated binding. Strong primary sites promote salt dissociation, while distributed secondary sites sustain dynamic hopping pathways. This coordination landscape couples ion flux with polysulfide conversion, suppresses transport‐conversion decoupling ...
Zhong‐Wei Zheng, Jing‐Yu Li, Meng‐Che Tsai, Tsung‐I. Yeh, Wei‐Ming Huang, Mohamed Gamal Mohamed, Shiao‐Wei Kuo, Bing‐Joe Hwang, Yun‐Sheng Ye   +8 more
wiley   +1 more source

Control rod strategy for long-term small rod-controlled pressurized water reactors

He jishu
BackgroundSmall rod-controlled pressurized water reactors have foregone the use of soluble boron and heavily rely on control rods and burnable poison rods for reactor control.PurposeThis study aims to explore the influence of control rods on the key ...
WU Zhiqiang, XIE Jinsen, LOU Lei, CHEN Pengyu, LIU Tao, DENG Nianbiao, YU Tao   +6 more
doaj   +1 more source

Mechanistic Control of C─H Bond Activation and C─C Coupling in Light‐Driven Methane Conversion to C2+ Products over Multifunctional Photocatalysts

Advanced Functional Materials, EarlyView.
Methane photocatalytic activation under mild conditions remains a formidable challenge in the synthesis of solar fuels. In this review, we emphasize the growing importance of multifunctional materials and hybrid systems within a unified mechanistic framework that integrates selective C─H bond activation, formation and control of intermediates, C─C ...
Di Hu, Yuheng Jiang, Vitaly V. Ordomsky, Bastian Mei, Zhiyong Tang, Andrei Y. Khodakov   +5 more
wiley   +1 more source

Si‐Doped Nanocrystalline Diamond as Highly Sensitive Luminescence Thermometer for the Physiological Temperature Range

Advanced Functional Materials, EarlyView.
In this work, diamonds with negative charged silicon‐vacancy (SiV−) centers have been designed for use as thermometers in biomedical applications. Multiparametric analysis of the emission characteristics of the SiV− centers provides extraordinary sensitivity for temperature detection in the physiological temperature range.
María Gragera, Iván Carrillo‐Berdugo, Josue Millán, Paulius Pobedinskas, Antonio Freire, Ken Haenen, Javier Navas   +6 more
wiley   +1 more source

Analysis of multiple spurious operation scenarios of Korean PHWRs using guidelines of nuclear power plants in U.S.

Nuclear Engineering and Technology, 2019
Multiple spurious operations (MSOs) mean multiple fire induced circuit faults causing an undesired operation of one or more systems or components. The Nuclear Energy Institute (NEI) of the United States published NEI 00-01 as guidelines for solving MSOs.
Jaehwan Kim, Sukyeong Jin, Seongchan Kim, Yeonkyoung Bae   +3 more
doaj   +1 more source

Numerical investigation of two-component single-phase natural convection and thermal stratification phenomena in a rod bundle with axial heat flux profile

Nuclear Engineering and Technology, 2022
The most numerical investigations of the thermal-hydraulic phenomena following the loss of the residual heat removal capability during the mid-loop operation of the pressurized water reactor were performed according to simplifications and are not ...
Audrius Graževičius, Marijus Šeporaitis, Mindaugas Valinčius, Algirdas Kaliatka   +3 more
doaj   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

Advanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu, Yi Zhao, Liming Cai, Simin Long, Jing Kang, Jingkai Lin, Jimin Shen, Zhonglin Chen, Shaobin Wang, Huayang Zhang   +9 more
wiley   +1 more source

Hoop Tensile Test of Zirconium Alloy Cladding of Spent Fuel Rod

Yuanzineng kexue jishu
Zirconium alloys used as cladding in pressurized water reactor (PWR) fuel rods undergo significant mechanical properties changes due to prolonged neutron irradiation and high-temperature coolant corrosion during in-reactor service.
TANG Qi, WANG Yeting, ZHANG Kai, GUO Yifan, QIAN Jin, WANG Huacai, LIANG Zhengqiang
doaj   +1 more source