Results 151 to 160 of about 1,066,601 (390)

Gas turbine engine with recirculating bleed [PDF]

open access: yes, 1978
Carbon monoxide and unburned hydrocarbon emissions in a gas turbine engine are reduced by bleeding hot air from the engine cycle and introducing it back into the engine upstream of the bleed location and upstream of the combustor inlet. As this hot inlet
Adamson, A. P.
core   +1 more source

Advanced Electrode Materials for Efficient Hydrogen Production in Protonic Ceramic Electrolysis Cells

open access: yesAdvanced Materials, EarlyView.
Protonic ceramic electrolysis cells (PCECs) are a promising intermediate‐temperature hydrogen production technology, leveraging high proton conductivity in electrolytes yet constrained by insufficient catalytic activity and interfacial instability in fuel/air electrodes. This review systematically categorizes advanced electrode materials and critically
Zhipeng Liu   +6 more
wiley   +1 more source

Geochemical characteristics of rare earth elements in late Palaeozoic coals from North China

open access: yesFrontiers in Earth Science
Introduction: China is a large country of REE resources and production, supplying more than 90% of the world’s rare earth consumption market, China’s traditional REE resources, although rich, but reserves are also declining, in recent years, scholars ...
Long Wen   +4 more
doaj   +1 more source

CO2‐Responsive Smart Wood Scaffold for Natural Organic Matter Removal without Secondary Pollution

open access: yesAdvanced Materials, EarlyView.
A CO2‐responsive smart wood scaffold is developed for sustainable water purification, achieving efficient natural organic matter (NOM) removal and microbial disinfection without secondary pollution. The CO2‐responsive polymer coating undergoes protonation upon CO2 exposure, enabling strong cation−π interactions with NOM.
Lin Yang   +11 more
wiley   +1 more source

Robust Mix‐Charged Polyzwitterionic Hydrogels for Ultra‐Efficient Atmospheric Water Harvesting and Evaporative Cooling

open access: yesAdvanced Materials, EarlyView.
Conventional atmospheric water‐harvesting hydrogels prioritize hygroscopicity at the expense of mechanics, hindering its practical applications. The proposed hygroscopic mix‐charged polyzwitterionic hydrogel(THMPH) achieves a trade‐off between high water absorption and exceptional mechanical robustness through a strength gradient‐enhanced ionic cross ...
Xuanxuan Du   +5 more
wiley   +1 more source

Fabrication of Organic/Inorganic Nanocomposites: From Traditional Synthesis to Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
It provides an overview of the synthesis of organic/inorganic nanocomposites, spanning from conventional methods to advanced 3D printing techniques. It summarizes key challenges in 3D‐printed nanocomposites and highlights emerging innovations, including 5D printing, AI‐assisted material design, nanoscale additive manufacturing, and sustainable closed ...
Liwen Zhang   +8 more
wiley   +1 more source

Enhanced Oil Recovery Method Selection for Shale Oil Based on Numerical Simulations

open access: yesACS Omega, 2021
Elena Mukhina   +9 more
doaj   +1 more source

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