Results 51 to 60 of about 349,761 (181)

Diffusion‐Governed Growth Mechanisms of Epitaxial GaAs Islands on CMOS‐Compatible Si(001) Nanotip Arrays

open access: yesAdvanced Physics Research, EarlyView.
The mechanism and kinetics of selective GaAs growth on Si nanotip wafers via nanoheteroepitaxy were investigated as a function of pitch (center‐to‐center nanotip spacing). The pitch dependence reveals distinct surface‐diffusion‐controlled regimes, demonstrating that lateral Ga adatom transport on the SiO2 mask governs material redistribution and ...
Adriana Rodrigues   +6 more
wiley   +1 more source

Endoscopic Calcaneoplasty Achieves Excellent Functional Outcomes in Haglund's Deformity

open access: yesArthroscopy, Sports Medicine, and Rehabilitation, EarlyView.
Purpose To evaluate the functional outcomes of endoscopic calcaneoplasty for patients with Haglund's deformity who are recalcitrant to conservative management and to assess complication rates and the proportion of patients achieving minimal clinically important difference in functional outcome scores.
Samuel Sing Li Ong   +3 more
wiley   +1 more source

Experimental and smoothed particle hydrodynamics‐finite element method simulation investigation of synergistic erosion mechanism of gangue‐based abrasive water jets

open access: yesDeep Underground Science and Engineering, EarlyView.
This study proposes an eco‐friendly coal permeability enhancement technique by utilizing mine waste gangue as an abrasive in high‐pressure water jets. Integrating erosion experiments with smoothed particle hydrodynamics‐finite element method coupled simulations, the research study elucidates the flow field dynamics and a nonlinear solid–liquid ...
Qingxiang Wang   +4 more
wiley   +1 more source

Optimization Turbine Blade Cooling by Applying Jet Impingement Cooling Channels

open access: yesTransport and Telecommunication, 2023
The aim of this paper is to optimize turbine blade cooling channels by applying jet impingement Method. The selection of experiment data for NASA 3CX turbine blade, and 3D model using solidworks software and create computational fluid dynamics (CFD ...
Elmenshawy Adham Ahmed Awad Elsayed   +2 more
doaj   +1 more source

A Numerical Investigation of the Effects of Piston Bowl Geometry and Spray Angle on Combustion, Performance and Emission of a Diesel Engine

open access: yesEnergy Science &Engineering, EarlyView.
A piston bowl's design and spray angle improve air‐fuel mixing, resulting in more complete combustion and higher efficiency. Ansys Forte 2023 R1 a CFD software was used to analyze the effects of five combustion chamber geometries of cylinder, modified re‐entrant, re‐entrant, double‐stepped, and stepped on engine performance, combustion, and emission ...
Md. Nazmul Haque   +7 more
wiley   +1 more source

Glazing Effects on Dynamic‐Insulation TSC Façades: A CFD‐Supported Experimental Study of Flow, Heat Transfer, and Ventilation Preheating

open access: yesEnergy Science &Engineering, EarlyView.
Glazed transpired solar collectors achieve 48–75% efficiency and 11% more seasonal heat than unglazed designs by cutting convective losses, while both offer complementary benefits for ventilation preheating and dynamic wall insulation, with paybacks of 5.5–6.8 years.
Mohammad Fawaier   +7 more
wiley   +1 more source

Plane jets impinging on porous walls [PDF]

open access: yes, 2002
The flow of a two-dimensional plane turbulent jet impinging on a porous screen has been studied experimentally. It is shown how the overall flow structure depends on the porosity of the surface. For low screen porosity (# < 0.41, say), transverse wall
Walklate, Peter, Castro, Ian, Cant, Ross
core   +1 more source

Cooling of rocket plume using aqueous jets during launching

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
With an increase in rocket motor thrust, the thermal loads on the launch platform by the impingement exhaust jet are significantly increased, this poses serious safety risks to rocket launch.
Zhitan Zhou   +3 more
doaj   +1 more source

Engineering mRNA‐LNP Medicines for the Ageing Brain: Opportunities and Challenges for Neurodegenerative Diseases

open access: yesExploration, EarlyView.
This review highlights recent advances in engineering messenger RNA (mRNA)‐lipid nanoparticles (LNPs) to cross the ageing blood–brain barrier and target neurodegenerative diseases. It outlines design principles, delivery routes, and translational challenges, charting a roadmap towards clinical application of mRNA‐LNP therapeutics for neurodegenerative ...
Abdel Ali Belaidi   +5 more
wiley   +1 more source

Forced Draught Impact on Externally Venting Flames: An Experimental and Numerical Investigation

open access: yesFire and Materials, EarlyView.
ABSTRACT Wind can significantly influence fire development and spread in urban and forest environments causing fatal consequences for the public, the first responders, and the environment. Wind‐driven fires can have a significant impact on structural fires as wind can increase the fire's intensity, development, and flame spread.
Anoop Subramania Warrier   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy