Results 91 to 100 of about 16,676,676 (283)

Site‐Specific Molecular Engineering Redirects Radical Pathways for Selective Photocatalytic Coupling of Methane to C2+ Hydrocarbons

open access: yesAngewandte Chemie, EarlyView.
Site‐specific self‐assembly of alkyl thiols on Au/TiO2 enables precise modulation of interfacial electron distribution and the local microenvironment through covalent Au‐thiolate interactions. This site‐specific molecular engineering synergistically promotes surface kinetics and charge separation, suppressing ·O2−‐driven overoxidation and thereby ...
Yaru Shao   +11 more
wiley   +2 more sources

Two-phase flow instability in multi-parallel channels of helical-coiled once-through steam generator

open access: yesHe jishu
BackgroundThe helical-coiled once-through steam generator (H-OTSG) has the advantages of compact structure and strong heat transfer ability, which is appropriate for lead-cooled fast reactor (LFR).
QIAN Guanhua   +3 more
doaj   +1 more source

Investigation of Heat and Mass Transfer in Helical Coil and All-regime Prediction Model

open access: yesYuanzineng kexue jishu, 2022
Due to the compact structure, high heat transfer efficiency and strong reliability, helical coil once-through steam generator (HCSG) is widely used in advanced small reactors.
XIAO Yao;LIU Maolong;CHEN Shuo;CONG Tenglong;LIU Limin;LIU Li;ZHANG Wei;XU Ziyi;SHEN Cong;ZHANG Qi;GU Hanyang
doaj  

Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells

open access: yesAdvanced Energy Materials, EarlyView.
Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu   +4 more
wiley   +1 more source

Functionalization‐Mediated Synthesis of Bridge‐Coordinated Fe Atoms on MoS2 Nanosheets for PEM Water Electrolyzers

open access: yesAngewandte Chemie, EarlyView.
We report a functionalization‐mediated strategy to synthesize robust iron (Fe) atoms selectively coordinated at bridge sites on molybdenum disulfide (MoS2) nanosheets. The resulting b‐Fe‐MoS2 catalyst exhibits enhanced activity and durability for the hydrogen evolution reaction in proton exchange membrane water electrolyzers compared to atop ...
Zakaria Anfar   +13 more
wiley   +2 more sources

Development of Three-dimensional Thermal-hydraulic Analysis Code HeTAF for Helical Coil Steam Generator

open access: yesYuanzineng kexue jishu, 2022
Helical coil steam generator has the advantages of compact structure, high heat transfer efficiency, strong resistance to thermal expansion stress, and has been widely applied in energy and power engineering, chemical industry and other fields.
LIU Kai;WANG Mingjun;ZHANG Jing;TIAN Wenxi;QIU Suizheng;SU Guanghui
doaj  

Resistant Starch Dynamics in Whole‐Grain Cereals: How Processing and Macromolecular Interactions Shape Quality and Physiological Responses

open access: yesAgriFood: Journal of Agricultural Products for Food, EarlyView.
This review explores how processing and macromolecular interactions shape resistant starch dynamics in whole‐grain cereals. It highlights how these transformations influence nutritional quality, digestion kinetics, and product properties, offering insights for designing stable health‐oriented whole‐grain foods with optimized functional benefits ...
Yuewen Tan   +4 more
wiley   +1 more source

Staging an Experience of Cultural Heritage Preservation: Consumers' Willingness to Pay for Heirloom Rice in the Philippines

open access: yesAgribusiness, EarlyView.
ABSTRACT The Cordillera Administrative Region in the Philippines is home to terraced rice embedded in centuries of cultural heritage. However, weak market incentives threaten sustained production, jeopardizing indigenous communities' cultural heritage and the in situ biodiversity of rice genetic resources.
Kofi Britwum, Matty Demont
wiley   +1 more source

Exploring Quantum Support Vector Regression for Predicting Hydrogen Storage Capacity of Nanoporous Materials

open access: yesAdvanced Intelligent Discovery, EarlyView.
In this study we employed support vector regressor and quantum support vector regressor to predict the hydrogen storage capacity of metal–organic frameworks using structural and physicochemical descriptors. This study presents a comparative analysis of classical support vector regression (SVR) and quantum support vector regression (QSVR) in predicting ...
Chandra Chowdhury
wiley   +1 more source

Plumbers, gas and steam fitters' official journal.

open access: yes, 1907
Description based on: Vol. 2, no. 8 (May 25, 1900); title from caption.Mode of access: Internet.Official organ of the United Association of Journeymen Plumbers, Gas Fitters, Steam Fitters and Steam Fitters Helpers of the United States and ...
United Association of Journeymen Plumbers, Gas Fitters, Steam Fitters and Steam Fitters Helpers of the United States and Canada. 3n
core  

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