Results 71 to 80 of about 290,664 (291)
Thermodynamic modeling of secondary-side water chemistry in PWR steam generator
Nuclear Engineering and TechnologyThis study presents a thermodynamic modeling framework to predict secondary-side water chemistry in pressurized water reactors (PWRs), incorporating coupled ionization, liquid-vapor phase partitioning, and thermal decomposition processes within steam ...
Hyeeun Jeong +4 more
doaj +1 more source
Advanced Science, EarlyView.Programmable chaotic suspension electrolysis bridges laboratory synthesis and industrial manufacturing of high‐performance MnO2 cathodes. This scalable strategy enables tunable oxygen vacancies and a robust γ/β tunnel framework, delivering superior electrochemical performance and thermal stability.
Zhihao Wu +16 more
wiley +1 more source
Multi-stage identification framework for steam generator modeling with gap metrics
Ain Shams Engineering JournalThis paper focuses on the modeling of nonlinear multi-input, multi-output coupled steam generators in nuclear power plants. To address the problem of insufficient modeling accuracy due to the low signal-to-noise ratio of closed-loop operation sampling, a
Hongrui Wang +4 more
doaj +1 more source
Global Challenges, 2018 A bioinspired structure of an artificial mushroom, made of the common polyvinyl alcohol sponge coated with charcoal, is fabricated, with high efficiency in generating cold water steam of ≈73% under 1 sun illumination, due to very high light absorption ...
Xiujun Gao +11 more
doaj +1 more source
Nanometer Layer Coating to Lactose Particles for Optimization of Dexamethasone Pulmonary Delivery
Advanced Science, EarlyView.Nanometer layer coating (NLC) was investigated and its mechanism illustrated by advanced characterization techniques. The effects and application for the inhalation of dexamethasone (DEX) were demonstrated through in vitro and in vivo evaluation. This approach increased DEX bioavailability and enabled the dose to be reduced to 1/30 of the intravenous ...
Qin Nie +11 more
wiley +1 more source
Nuclear Engineering and Technology, 2014 It was discovered in a Korean PWR that an extensive number of very short and shallow cracks in the SG tubes were undetectable by eddy current in-service-inspection because of the masking effect of sludge deposits.
HANSUB CHUNG +4 more
doaj +1 more source
Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications
Advanced Science, EarlyView.Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li +6 more
wiley +1 more source
Advanced Science, EarlyView.The cathode of proton exchange membrane water electrolyzers remains a poorly understood region despite its importance for hydrogen purity and operational safety. Operando synchrotron X‐ray radiography directly visualizes liquid water behavior and uncovers a transition from continuous to pulsating transport, providing new insight into multiphase ...
Wataru Yoshimune +2 more
wiley +1 more source
Angewandte Chemie, EarlyView.Trace Mg doping into gallia–alumina generates hole‐type oxygen species that accelerate hydrogen recombination, eliminating the need for Pt promotion. The fully oxide‐based catalyst resists sintering under repeated regeneration, outperforming benchmark PtSn and CrOx catalysts with exceptional stability over 30 dehydrogenation–regeneration cycles ...
DongHwan Oh +8 more
wiley +2 more sources
Comparison between PSB and VVER-1000 steam generator modeling
, 2004 This paper presents a comparison between the dynamic performance of PSB and VVER 1000 steam generator models. PSB is a large-scale integral test facility which simulates the VVER-1000/320 reactor. Volume and power scale are 1:300.
CHERUBINI M. +3 more
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