Results 81 to 90 of about 158,007 (340)

Correlation of combustor acoustic power levels inferred from internal fluctuating pressure measurements [PDF]

open access: yes
Combustion chamber acoustic power levels inferred from internal fluctuating pressure measurements are correlated with operating conditions and chamber geometries over a wide range. The variables include considerations of chamber design (can, annular, and
Vonglahn, U. H.
core   +1 more source

A quasi-dimensional model of pre-chamber spark-ignition engines [PDF]

open access: yes, 2019
Increasingly stringent pollutant and CO2 emission standards require the car manufacturers to investigate innovative solutions to further improve the fuel economy of their fleets.
Bozza, Fabio   +5 more
core   +1 more source

Liquid Metal Printed Zinc Tin Composite Oxide Nanosheets: A Platform for Multifunctional Sensing at Room Temperature

open access: yesAdvanced Science, EarlyView.
This work introduces a vacuum‐free liquid metal printing approach to create ultrathin zinc–tin composite oxide nanosheets. The material shows strong UV light responsiveness and high sensitivity to ammonia gas at room temperature, highlighting the potential of mixed metal oxides for advanced environmental sensors and optoelectronic device technologies ...
Vaishnavi Krishnamurthi   +15 more
wiley   +1 more source

Optical Diagnostics of Pre-Chamber Combustion with Flat and Bowl-In Piston Combustion Chamber [PDF]

open access: yesSAE Technical Paper Series, 2021
Emre Cenker   +5 more
openaire   +2 more sources

From Operando Investigations to Implementation of Ni‐MOF‐74 Oxygen Evolution Electrocatalysts

open access: yesAdvanced Energy Materials, EarlyView.
This work shows how understanding the transformations of Ni‐MOF‐74 during oxygen evolution reaction via operando characterizations leads to the development of a novel, amorphous Ni metal organic compound (Ni‐MOC*), which achieves high current densities both in a three‐electrode cell and in an anion exchange membrane water electrolyzer (AEM‐WE) with a ...
Julia Linke   +11 more
wiley   +1 more source

Leveraging Electrons for Electrochemical CO2 Capture Using a Hemi‐Labile Iron Complex

open access: yesAngewandte Chemie, EarlyView.
We present an electrochemical CO2 capture system using coordination complex with an iron center and hemi‐labile ligands. This system achieves an electron utilization of 1.43 by leveraging oxidation‐state‐dependent ligand coordination, enabling efficient CO2 separation from flue gas with low energy consumption and high cyclability.
Hyowon Seo   +4 more
wiley   +2 more sources

Peroxide‐Driven Nitrogen Fixation Reactions for Energy Storage Applications

open access: yesAdvanced Energy Materials, EarlyView.
Sustainable ammonia synthesis from air as a hydrogen energy carrier and storage medium is demonstrated via an efficient dual‐step electrochemical approach at ultralow overpotential (−0.1 V vs. RHE). Atmospheric nitrogen is first oxidized to nitrate using in situ generated peroxide, then directly converts to ammonia on the same electrode, achieving ...
James Ebenezer   +2 more
wiley   +1 more source

Copper Single‐Atom Catalyst for Efficient C─S Coupling in Thioether Synthesis

open access: yesAngewandte Chemie, EarlyView.
We report the first single‐atom catalyst for C─S cross‐coupling, featuring atomically dispersed Cu sites on mesoporous carbon nitride. The catalyst enables efficient, selective, and recyclable thioether synthesis under mild conditions and on a gram scale.
Theodore A. Gazis   +9 more
wiley   +2 more sources

Flame theory and combustion technology [PDF]

open access: yes, 1956
The study of combustion processes is in a sufficiently early stage so that there is no strong connection between combustion theory and the technology of combustion chamber development.
Marble, Frank E.
core   +1 more source

Development Status and Future Prospects of Hydrogen Energy Technology: Production, Storage, and Cost Analysis

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Hydrogen is an energy carrier, produced from renewable and nonrenewable resources. It can be stored in a variety of materials and transported to distant locations. This article reviews progress in hydrogen technology by looking at environmental and economic impact, cost analysis, and policy support at government level as way forward for bringing it to ...
Xuexue Pan   +5 more
wiley   +1 more source

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