Results 101 to 110 of about 135,192 (359)

Inverse Electron Demand Diels–Alder Reaction on M3N@C80 (M=Lu, Sc): Reactivity and Reversibility Enable Chemical Separation of Metallofullerenes

open access: yesAngewandte Chemie, Volume 137, Issue 16, April 11, 2025.
An inverse electron demand Diels–Alder (IEDDA) reaction on M3N@Ih‐C80 (M=Lu, Sc) has been utilized to yield [5,6]‐closed [4+2] cycloadducts that were fully characterized (HPLC, MS, UV/Vis and NMR spectroscopy, X‐ray crystallography, and DFT calculations).
Yue Sun   +10 more
wiley   +1 more source

Development and testing of a soot particle concentration estimator using Lagrangian post-processing

open access: yesEngineering Applications of Computational Fluid Mechanics, 2018
Soot emissions from combustion devices are known to have harmful effects on the environment and human health. As the transportation industry continues to expand, the development of techniques to reduce soot emissions remains a significant goal of ...
Raymond Alexander   +3 more
doaj   +1 more source

Re-ignition of multi-species soot clouds in building fires

open access: yesReaktor, 2017
The re-ignition potential of multi-species soot clouds in building fires were investigated  based on their extinction characteristics. The investigation was carried out theoretically using the adaptation of Semenov`s thermal explotion theory.
T. Poespowati, B. Moghtaderi
doaj   +1 more source

Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistry [PDF]

open access: yesProceedings of the Combustion Institute, 40(1-4), 105451 (2024)
A numerical study of the effects of air dilution on soot formation and particle dynamics in a lab-scale rich-quench-lean (RQL) combustor is presented using large-eddy simulations (LES) with tabulated chemistry. The modelling approach comprises a flamelet generated manifold (FGM) turbulent combustion model and an efficient discrete sectional method with
arxiv   +1 more source

Instabilities and soot formation in high pressure explosion flames [PDF]

open access: yes, 2009
Flame instabilities, cellular structures and soot formed in high pressure, rich, spherically expanding iso-octane-air flames have been studied experimentally using high speed Schlieren cinematography, OH fluorescence, and laser induced incandescence ...
Lockett, R. D.
core  

Imidazo[1,5‐a]pyridines – A Versatile Platform for Structurally Distinct N‐Heterocyclic Olefins and π‐Extended Heterocycles

open access: yesAngewandte Chemie International Edition, Accepted Article.
The synthesis of polarized N‐heterocyclic olefins (NHOs) based on an imidazo[1,5‐a]pyridine scaffold is presented. In contrast to regular NHOs the unique bicyclic heterocyclic core allows the incorporation of various substituents in close proximity to the highly polarized exocyclic C–C bond.
Robin Esken   +6 more
wiley   +1 more source

Complete Scheme for Fullerene, Graphene, and Soot Formation in Flame

open access: yesEurasian Chemico-Technological Journal, 2018
Soot formation processes have been studied for more than 100 years, they include empirical and phenomenological description of conversion of various fuels to soot particles. This article provides an overview of current state of soot formation foundations,
Z. A. Mansurov
doaj   +1 more source

Wear effects and mechanisms of soot-contaminated automotive lubricants [PDF]

open access: yes, 2006
A study has been carried out to investigate the influence of soot-contaminated automotive lubricants in the wear process of a simulated engine valve train contact. Previous research on this topic has been mainly performed from a chemical point of view in
Dwyer-Joyce, R.S.   +2 more
core   +1 more source

Bending performance changes during prolonged canine eruption in saber‐toothed carnivores: A case study of Smilodon fatalis

open access: yesThe Anatomical Record, EarlyView.
Abstract The canine of saber‐toothed predators represents one of the most specialized dental structures known. Hypotheses about the function of hypertrophied canines range from display and conspecific interaction, soft food processing, to active prey acquisition.
Z. Jack Tseng
wiley   +1 more source

Reactive molecular dynamics simulations of soot formation in acetylene combustion with hydrogen addition

open access: yesEnergy Reports, 2021
Soot emission from combustion devices not only reduces energy efficiency but also poses a serious risk to global warming and human health. The reactive molecular dynamics simulation is used to study the soot formation process of acetylene as the initial ...
Yang Wang, Mingyan Gu, Ling Cao
doaj  

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