Results 21 to 30 of about 1,349,018 (307)

Energy Converter with Inside Two, Three, and Five Connected H2/Air Swirling Combustor Chambers: Solar and Combustion Mode Investigations

open access: yesEnergies, 2016
This work reports the performance of an energy converter characterized by an emitting parallelepiped element with inside two, three, or five swirling connected combustion chambers.
Angelo Minotti
doaj   +1 more source

Ga-Substituted Cobalt-Chromium Spinels as Ceramic Pigments Produced by Sol–Gel Synthesis

open access: yesCrystals, 2020
For the first time to the best of our knowledge, cobalt-chromium spinels CoCr2−xGaxO4 with different amounts of gallium (x = 0–2 with a step of 0.5) were synthesized via the aqueous sol–gel route as ceramic pigments.
Egle Grazenaite   +5 more
doaj   +1 more source

Extinction characteristics of ammonia/air counterflow premixed flames at various pressures

open access: yesJournal of Thermal Science and Technology, 2016
Ammonia has promising features as a carbon-free fuel without greenhouse gas emission. However, due to its low combustion intensity, the combustion characteristics of ammonia have been rarely investigated.
Sophie COLSON   +3 more
doaj   +1 more source

Exploring Oxidation in the Remote Free Troposphere: Insights from Atmospheric Tomography (ATom) [PDF]

open access: yes, 2020
Earth's atmosphere oxidizes the greenhouse gas methane and other gases, thus determining their lifetimes and oxidation products. Much of this oxidation occurs in the remote, relatively clean free troposphere above the planetary boundary layer, where the ...
Allen, H. M.   +5 more
core   +1 more source

Characterizing the Chemistry of the Milky Way Stellar Halo: Detailed Chemical Analysis of a Metal-Poor Stellar Stream [PDF]

open access: yes, 2010
We present the results of a detailed abundance analysis of one of the confirmed building blocks of the Milky Way stellar halo, a kinematically-coherent metal-poor stellar stream. We have obtained high resolution and high S/N spectra of 12 probable stream
Aoki   +108 more
core   +2 more sources

Sensitivity Analysis of Key Parameters for Population Balance Based Soot Model for Low-Speed Diffusion Flames

open access: yesEnergies, 2019
In this article, the evolution of in-flame soot species in a slow speed, buoyancy-driven diffusion flame is thoroughly studied with the implementation of the population balance approach in association with computational fluid dynamics (CFD) techniques ...
Cheng Wang   +6 more
doaj   +1 more source

Evaluation of simulated O-3 production efficiency during the KORUS-AQ campaign: Implications for anthropogenic NOx emissions in Korea [PDF]

open access: yes, 2019
We examine O3 production and its sensitivity to precursor gases and boundary layer mixing in Korea by using a 3-D global chemistry transport model and extensive observations during the KORea-US cooperative Air Quality field study in Korea, which occurred
Blake, Donald R   +11 more
core   +1 more source

An Electrochemical Perspective of Aqueous Zinc Metal Anode

open access: yesNano-Micro Letters, 2023
Highlights Detailed discussion and summary of aqueous electrolyte chemistry, parasitic reactions chemistry, and storage energy chemistry and their relationship in aqueous zinc ions batteries are conducted.
Huibo Yan   +3 more
doaj   +1 more source

Functionalisation of colloidal transition metal sulphides nanocrystals: A fascinating and challenging playground for the chemist [PDF]

open access: yes, 2017
Metal sulphides, and in particular transition metal sulphide colloids, are a broad, versatile and exciting class of inorganic compounds which deserve growing interest and attention ascribable to the functional properties that many of them display.
Dengo, Nicola   +2 more
core   +1 more source

Assessment of Global and Detailed Chemical Kinetics in Supercritical Combustion for Hydrogen Gas Turbines

open access: yesEnergies
Supercritical combustion is a promising technique for improving the efficiency and reducing the emissions of next-generation gas turbines. However, accurately modeling combustion under these conditions remains a challenge, particularly due to the ...
Sylwia Oleś   +4 more
doaj   +1 more source

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