Results 81 to 90 of about 66,096 (310)

Flow and combustion in disc and pent-roof SI engines [PDF]

open access: yes, 2006
Reported in this thesis is a study of combustion in a disc-shaped combustion chamber spark ignition engine, and in-cylinder flow and combustion in an idealised pent-roof spark ignition engine. Both engines were skip fired, to remove residuals and ensure
Murad, Ahmad E M A, Murad, Ahmad E. M. A
core  

Ultra‐High‐Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays

open access: yesAdvanced Materials, EarlyView.
An ultra‐high‐throughput (UHT) combinatorial strategy enables the miniaturized synthesis and screening of ≈30 000 polyamine‐polyphenolic (PaPp) coatings using droplet microarrays (DMA). This approach reveals hundreds of previously unknown fluorescent, redox‐active, and antibacterial materials, including multifunctional, cell‐compatible surfaces ...
Vania Tanda Widyaya   +11 more
wiley   +1 more source

Triple flame structure and diffusion flame stabilization

open access: yes, 1994
The stabilization of diffusion ñames is studied using asymptotic techniques and numerical tools. The configuration studied corresponda to parallel streams of cold oxidizer and fuel initially separated by a splitter píate.
Poinsot, T.   +5 more
core  

Toward a Unified Mechanistic Understanding of Polymer Electrolytes for Advanced Solid‐State Batteries

open access: yesAdvanced Materials, EarlyView.
Polymer electrolytes (PEs) are often indiscriminately grouped as “solid polymer electrolytes (SPEs)”, despite fundamental differences in their ion‐transport mechanisms. This Perspective establishes a mechanism‐based framework that distinguishes gel, quasi‐solid, and all‐solid polymer electrolytes based on their dominant ion‐transport pathways.
Jing Chen   +15 more
wiley   +1 more source

Experimental investigation of fundamental flame characteristics, N2O and NF3 decomposition, and NOX formation in hydrogen/methane diffusion flames

open access: yesCase Studies in Thermal Engineering
In this study, the thermal decomposition characteristics of high-global-warming-potential (GWP) greenhouse gases (N2O and NF3) and the associated NOX emission behaviors were experimentally investigated under methane/hydrogen diffusion flame conditions ...
Sumin Song   +4 more
doaj   +1 more source

Joint stereo-PIV and NO-LIF in turbulent premixed hydrogen-air flames [PDF]

open access: yes, 2009
A new technique to simultaneously and instantaneously resolve 3D velocity/2D strain rate fields and scalar/scalar gradient fields was developed and evaluated in this study.
Magand, Christelle C. G.
core  

A DNS study of extreme and leading points in lean hydrogen-air turbulent flames - part II: Local velocity field and flame topology

open access: yes, 2022
Data obtained in recent direct numerical simulations (Lee et al.) of statistically one-dimensional and planar, lean complex-chemistry hydrogen-air flames characterized by three different Karlovitz numbers Ka ranging from 3 to 33 are further analyzed in ...
Wan, Minping   +7 more
core   +1 more source

Enhanced Photocatalytic H2O2 Production on Terpyridine‐Based Acrylonitrile‐Linked Covalent Organic Frameworks with Asymmetric Localized Electron Distribution

open access: yesAdvanced Materials, EarlyView.
Asymmetric localized electron distribution has been optimized in covalent organic frameworks to enhance *O2 adsorption and facilitate charge transfer, boosting photocatalytic two‐electron transfer oxygen reduction toward H2O2 production from water and air.
Qinglan Zhao   +12 more
wiley   +1 more source

Bayesian‐Optimized Dual‐Mode Luminescence‐Based Optical Thermometry Enabled by Negative Thermal Expansion in Lu2(MoO4)3:Yb–Er–Tm Phosphor

open access: yesAdvanced Optical Materials, EarlyView.
A Bayesian optimization framework identifies the ideal composition for Lu2(MoO4)3:Yb–Er–Tm phosphors with minimal experimental trials. By leveraging the host's negative thermal expansion, the material achieves remarkable thermal quenching compensation.
Reiko Furukawa   +7 more
wiley   +1 more source

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