Results 71 to 80 of about 4,315 (227)

Catalysts for Electrochemical Oxidation of Ammonia: A Comprehensive Review of Fundamentals and Optimization Strategies

open access: yesAdvanced Materials, Volume 38, Issue 4, 16 January 2026.
Developing robust catalysts for ammonia electrochemical oxidation (AOR) is essential for advancing NH3 utilization technologies. This review summarizes recent progress in catalyst design and mechanistic understanding of AOR. In addition, it systematically investigates strategies to improve AOR performance for various types of catalysts.
Yike Ye   +4 more
wiley   +1 more source

Rotating detonation combustion with in-situ evaporating bi-disperse n-heptane sprays

open access: yes, 2021
Eulerian-Lagrangian simulations are conducted for two-dimensional Rotating Detonative Combustion (RDC) fueled by bi-disperse n-heptane sprays without any fuel pre-vaporization. Parametric studies are performed to study the influences of droplet diameter and droplet distribution on detonation wave are studied.
Jin, Shan   +3 more
openaire   +2 more sources

On the One-dimensional Stability of Viscous Strong Detonation Waves [PDF]

open access: yes, 2003
Building on Evans function techniques developed to study the stability of viscous shocks, we examine the stability of viscous strong detonation wave solutions of the reacting Navier-Stokes equations.
18   +49 more
core   +1 more source

Scalable Photoactive NO2‐Sensing Framework for Plant Health Monitoring

open access: yesAdvanced Science, Volume 13, Issue 5, 27 January 2026.
A highly sensitive and selective NO2 gas sensor operates at room temperature using only ambient light, eliminating the need for external heating. Based on a scalable, 3D TiO2 nanoarchitecture, the device is integrated into a wireless platform and deployed on a plant. It successfully demonstrates real‐time monitoring of gas‐induced physiological stress,
Yun‐Haeng Cho   +21 more
wiley   +1 more source

Exploration of Measuring Pressure Gain Combustion within a Rotating Detonation Engine

open access: yes2018 Joint Propulsion Conference, 2018
Exploration of pressure gain within a Rotating Detonation Engine is investigated to determine maximum efficiency. Aerojet Rocketdyne’s Rotating Detonation Engine at Southwest Research Institute was used to find velocity measurements using Particle Image Velocimetry.
Dunn, Ian   +4 more
openaire   +3 more sources

Advances in second‐generation biofuel production from rice straw and barley straw

open access: yesBiofuels, Bioproducts and Biorefining, Volume 20, Issue 1, Page 313-331, January/February 2026.
Abstract This review critically examines recent advances in the use of rice straw and barley straw as lignocellulosic feedstocks for second‐generation biofuel production. A comprehensive analysis of their chemical composition, including cellulose, hemicellulose, lignin, and ash content, reveals how these intrinsic properties affect the efficiency of ...
Tâmili Vitória Duarte de Souza   +3 more
wiley   +1 more source

Thermonuclear explosions of rapidly rotating white dwarfs - I. Deflagrations

open access: yes, 2009
Context: Turbulent deflagrations of Chandrasekhar mass White Dwarfs are commonly used to model Type Ia Supernova explosions. In this context, rapid rotation of the progenitor star is plausible but has so far been neglected.
Klingenberg, C.   +3 more
core   +1 more source

Spectral modelling of the "Super-Chandra" Type Ia SN 2009dc - testing a 2 M_sun white dwarf explosion model and alternatives [PDF]

open access: yes, 2012
Extremely luminous, super-Chandrasekhar (SC) Type Ia Supernovae (SNe Ia) are as yet an unexplained phenomenon. We analyse a well-observed SN of this class, SN 2009dc, by modelling its photospheric spectra with a spectral synthesis code, using the ...
Abbott   +87 more
core   +2 more sources

Review of Flash Joule Heating for the Synthesis of Graphene and Other Functional Carbon Materials

open access: yesCarbon Energy, Volume 8, Issue 1, January 2026.
ABSTRACT Flash Joule heating (FJH), as a high‐efficiency and low‐energy consumption technology for advanced materials synthesis, has shown significant potential in the synthesis of graphene and other functional carbon materials. Based on the Joule effect, the solid carbon sources can be rapidly heated to ultra‐high temperatures (> 3000 K) through ...
Zhiwu Tan   +10 more
wiley   +1 more source

Preliminary Computational Assessment of Disk Rotating Detonation Engine Configurations [PDF]

open access: yes
A rotating detonation engine (RDE) configuration whereby the working fluid enters and exits in a predominantly radial manner is examined using a quasi-two-dimensional computational fluid dynamic simulation. The simulation, based on a Cartesian coordinate
Paxson, Daniel E.
core   +1 more source

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