Results 131 to 140 of about 405,542 (311)

Techno-economic transition towards a hydrogen economy [PDF]

open access: yes, 2010
PhDThe research conducted is in the field of innovation and focuses on the UK energy sector. The key theme of the study is the transition towards a hydrogen economy with fuel cell technologies at the epicentre and takes into account the relevant ...
Tezcakar, Merve
core  

Epilepsy‐Associated Variants of a Single SCN1A Codon Exhibit Divergent Functional Properties

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Pathogenic variants in SCN1A, which encodes the voltage‐gated sodium channel NaV1.1, are associated with multiple epilepsy syndromes exhibiting a range of clinical severity. SCN1A variants are reported in different syndromes, including Dravet syndrome, which is associated with loss‐of‐function, whereas neonatal/infantile‐onset ...
Lanie N. Liebovitz   +3 more
wiley   +1 more source

Research on the influence of the powder stoichiometry of (AgxCu1-x)0.7GaSe2 on the phase composition, structure, and lifetime of photogenerated charge carriers

open access: yesКонденсированные среды и межфазные границы
Purpose: This work presents a series of (AgxCu1-x)0.7GaSe2 (0 ≤ x ≤ 1) powders synthesized via a solid-state reaction using the presynthesized ternary compounds Cu0.7GaSe2, Ag0.7GaSe2 and Ag0.7GaSe2.
Vladimir V. Rakitin   +8 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Hydrolysis reaction of ball-milled Al-based-materials for hydrogen generation [PDF]

open access: yes, 2011
The hydrolysis reaction for hydrogen generation by Al-based-material in pure water has been investigated in this work. The composites were prepared by high energy ball milling.
徐芬, 孙立贤, 王爽
core  

Classification Framework for Hydrological Resources for Sustainable Hydrogen Production with a Predictive Algorithm for Optimization

open access: yesHydrogen
Given the urgent need to decarbonize the global energy system, green hydrogen has emerged as a key alternative in the transition to renewables. However, its production via electrolysis demands high water quality and raises environmental concerns ...
Mónica Álvarez-Manso   +2 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

An economic analysis of the production of hydrogen from wind-generated electricity for use in transport applications [PDF]

open access: yes
Wind-generated electricity is often considered a particularly promising option for producing hydrogen from renewable energy sources. However, the economic performances of such systems generally remain unclear because of unspecified or favorable ...
Alain Le Duigou   +3 more
core  

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Transient Analysis of Solar Driven Hydrogen Generation System Using Industrial Waste Water

open access: yesEngineering Proceedings
This study investigates an integrated solar-powered system for wastewater treatment and hydrogen production, combining solar PV, a humidification–dehumidification (HDH) system, solar thermal collectors, and electrolysis.
Yasir Ismail Saad   +6 more
doaj   +1 more source

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