Results 41 to 50 of about 31,928 (260)

Polymer Substrates for Flexible Sensors: Advances and Contributions to Smart Agriculture

open access: yesAdvanced Functional Materials, EarlyView.
This review comprehensively summarizes recent advances in polymer‐based flexible sensors for smart agriculture, focusing on polymer substrate design, interface engineering, and applications in soil, plant, animal, aquaculture, and post‐harvest monitoring.
Yihui Li   +12 more
wiley   +1 more source

Effects of Hydrogen Enrichment on Combustion Stability, Pressure Behavior, Harmonic Response, and Emissions in a Marine Auxiliary Diesel Engine

open access: yesEnergies
Hydrogen supplementation in compression-ignition diesel engines is increasingly investigated as a practical retrofit approach for reducing the environmental impact of existing marine and stationary diesel power systems. This study examines the effects of
Petros G. Savva
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao   +6 more
wiley   +1 more source

Coupling combustion simulation and primary evaluation of an asymmetric motion diesel pilot hydrogen engine

open access: yesCase Studies in Thermal Engineering, 2022
The thermal efficiency and combustion of conventional hydrogen engines cannot be optimized and improved by its symmetric reciprocating. This article introduces an asymmetric motion hydrogen engine (AHE) and investigates its combustion characteristics ...
Zhaoju Qin   +5 more
doaj   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

Characteristics of Explosion Hazards in Methane–Air Mixtures Diluted by Hydrogen

open access: yesEnergies, 2023
The combustion efficiency of methane can be effectively enhanced with the occurrence of hydrogen. However, the combustion characteristic of premixed methane/hydrogen/air is not fully understood.
Jiajia Liu   +4 more
doaj   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

open access: yesAdvanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Combustion Performance of Upper Stage Hydrogen-Oxygen Internal Combustion Engines

open access: yes气体物理
In the integrated vehicle fluids (IVF) system, hydrogen-oxygen internal combustion engines play a crucial role, with a focus on the port fuel injection-hydrogen (PFI-H2) strategy into the intake manifold.
Zhenke HE   +7 more
doaj   +1 more source

Combustion Characteristics of Hydrogen

open access: yesJournal of the Fuel Society of Japan, 1975
Hydrogen is considered as a very Promising material for the future energy system. When hydrogen is used as an energy carrier, hydrogen will be used as fuel gas for the burners in the industry and also in the houses. Therefore, it is important to discuss the problems about the combustion of hydrogen as a practical fuel.In this paper, the concerning ...
openaire   +2 more sources

Numerical study of hydrogen mild combustion

open access: yesThermal Science, 2009
In this article a combustor burning hydrogen and air in mild regime is numerically studied by means of computational fluid dynamic simulations. All the numerical results show a good agreement with experimental data. It is seen that the flow configuration is characterized by strong exhaust gas recirculation with high air preheating temperature.
Mollica E   +2 more
openaire   +2 more sources

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