Results 101 to 110 of about 3,707 (264)

ZnO Nanowires by Chemical Bath Deposition: A Review on Doping and Functional Devices

Electron, EarlyView.
This review reports the most recent and well‐established state‐of‐the‐art and scientific challenges related to the doping of ZnO nanowires by chemical bath deposition, encompassing native point and hydrogen‐related defects, as well as extrinsic dopants.
Clément Lausecker, Adrien Baillard, Estelle Appert, Vincent Consonni   +3 more
wiley   +1 more source

Reacting Flow Simulations of a Dual Throat-Dual Fuel Thruster

Journal of Applied Fluid Mechanics, 2021
Numerical simulation of the supersonic turbulent reacting flow field in a dual throat- dual fuel rocket thrust chamber is presented. Future single stage to orbit and high lift space transportation missions aspire a reliable, efficient, and cost ...
S. Jayakrishnan, M. Deepu
doaj  

Iron Energy Carrier: Experimental Characterisation, Combustion Diagnostic and Benchmarking with Other Clean Metal Fuels

Energy Science &Engineering, EarlyView.
This study investigates how iron particles burn across a wide size range, revealing late‐stage nanoparticle release and a previously unrecognised shift in combustion behaviour near 118 µm. High‐speed imaging, PMT diagnostics and SEM analyses have been conducted.
Zakaria Mansouri
wiley   +1 more source

Char Layer Thickness Evolution During Structural Timber Fire Experiment and Final Density Profile

Fire and Materials, EarlyView.
ABSTRACT This paper evaluates several non‐destructive experimental methods for determining the char layer thickness and its density profile in structural timber samples exposed to standard ISO 834 fire curve experiments. Microwave echo pulse, ultrasonic echo pulse, X‐ray computed tomography, and resistance drilling were evaluated.
Fernando Pérez Pérez, Kiarash Tajbakhsh, Joachim Schmid, Robert Zboray, Andrea Frangi   +4 more
wiley   +1 more source

An Experimental Study of Kerosene Combustion in a Supersonic Model Combustor Using Effervescent Atomization

, 2004
Investigation of kerosene combustion in a Mach 2.5 flow was carried out using a model supersonic combustor with cross-section area of 51 mm?70 mm, with special emphases on the characterization of effervescent atomization and the flameholdering mechanism ...
赵建荣, 岳连捷, 俞刚, 张新宇, 宋知人, 李建国   +5 more
core  

Rational design of Ni‐based catalysts for methane dry reforming: Recent advances and future perspectives

FlexMat, EarlyView.
Addressing the challenges inherent in dry reforming of methane (DRM), this paper focuses on the structural design and performance optimization of Ni‐based catalysts. The modulation strategies for DRM are systematically reviewed across four dimensions: the micromorphology of active metals, metal‐support interactions, electronic modifications by ...
Bowei Cao, Junlei Zhang, Wanglei Wang
wiley   +1 more source

Delayed Detached Eddy Simulation of a Transverse Supersonic Jet into Hypersonic Crossflow

Space: Science & Technology
In both military and civil industries, the complex flow field induced by a jet exhausting has widespread applications, such as supersonic/hypersonic vehicle reaction control systems, thrust vector control systems on rocket motors, and supersonic ...
Jikui Ma, Yaofeng Liu, Yuwei Liu
doaj   +1 more source

Effects of entry conditions on cracked kerosene-fueled supersonic combustor performance

, 2007
Supersonic combustion of thermally cracked kerosene was experimentally investigated in two model supersonic combustors with different entry cross-section areas.
岳连捷, 俞刚, Sung CJ, 张新宇, Fan, XJ (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China., 李建国, 范学军   +6 more
core   +1 more source

Maternal and neonatal outcomes in Gaza amid armed hostilities in 2025

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective This study documents facility‐based maternal, obstetric, and neonatal outcomes and associated conflict‐related exposures and living conditions among pregnancy‐related encounters at Al‐Helou Maternity Hospital in Gaza from late April to early September 2025, with a small number of additional encounters recorded at Al‐Shifa Medical ...
Shaymaa Abuhaiba, Younis Elijla, Aya El‐Dadah, Othman Nassar, Meran Abu‐Sultan, Maysaa Almasry, Hebatallah Alkhatib, Mahmoud Alsady, Amir Mahdi Ghafarian, Muath Alsarafandi, Lina Abumughessib, Arham Ali, Yassar Arain, Abeerah Muhammad, Belal Aldabbour, Shayan Ali, Bilal Irfan   +16 more
wiley   +1 more source

Half a Century of Per‐ and Polyfluoroalkyl Substances in Northern Gannet Eggs: Impact of Regulations

Journal of Applied Toxicology, EarlyView.
ABSTRACT Per‐ and polyfluoroalkyl substances (PFAS), known as “forever chemicals”, are persistent organic pollutants that have been widely used in the industry across the globe for many decades. Their chemical stability, bioaccumulation, and toxicity pose major environmental and health risks. This study examines temporal trends in the concentrations of
Anaïs Fournier, Anaïs Kerric, Raphaël A. Lavoie   +2 more
wiley   +1 more source