Results 21 to 30 of about 44,429 (272)

Evaluation of the impact of black carbon on the worsening of allergic rhinitis and asthma in the region of Uzice Serbia [PDF]

open access: yesMedicinski Glasnik Specijalne Bolnice za Bolesti Štitaste Žlezde i Bolesti Metabolizma "Zlatibor", 2021
Many epidemiological studies have shown a positive association between black carbon (BC) concentrations and exacerbation of allergic rhinitis and asthma. The aim of this study was to examine, for the first time in Serbia, the connection between visits to
Tomić-Spirić Vesna   +7 more
doaj   +1 more source

Numerical investigation on soot particles emission in compression ignition diesel engine by using particulate mimic soot model

open access: yesMATEC Web of Conferences, 2017
Research via computational method, specifically by detailed-kinetic soot model offers much more advantages than the simple model as more detailed formation/oxidation process is taken into consideration, thus providing better soot mass concentration, soot
Ibrahim Fadzli   +3 more
doaj   +1 more source

Effect of Thermodenuding on the Structure of Nascent Flame Soot Aggregates

open access: yesAtmosphere, 2017
The optical properties (absorption and scattering) of soot particles depend on soot size and index of refraction, but also on the soot complex morphology and the internal mixing with materials that can condense on a freshly emitted (nascent) soot ...
Janarjan Bhandari   +10 more
doaj   +1 more source

Classification of contaminants in diesel engine oils

open access: yesВестник СибАДИ, 2022
Introduction. The deterioration of engine oil in an internal combustion engine (ICE) is directly related to the ingress of various pollutants into the crankcase. Depending on the type of contamination, the type of sediment on engine part surfaces varies.
S. V. Pashukevich
doaj   +1 more source

Investigation on the effect of fractal soot aggregation on radiative transfer in homogeneous gas-soot mixture using full-spectrum k-distribution method

open access: yesJournal of Thermal Science and Technology, 2019
The full-spectrum k-distribution (FSK) method and Generalized Multiparticle Mie-solution (GMM) method are applied to study the influences of soot aggregation on the radiative heat transfer in homogeneous gas-soot mixtures. The radiative transfer equation
Zhenzong HE   +3 more
doaj   +1 more source

Why Soot is not Alike Soot: A Molecular/Nanostructural Approach to Low Temperature Soot Oxidation [PDF]

open access: yesFlow, Turbulence and Combustion, 2020
AbstractDue to worldwide increasingly sharpened emission regulations, the development of Gasoline Direct Injection and Diesel Direct Injection engines not only aims at the reduction of the emission of nitrogen oxides but also at the reduction of particulate emissions.
Hagen, F.   +9 more
openaire   +3 more sources

SOOT PARTICLE SIZE DISTRIBUTION NEAR THE CYLINDER WALL IN A DIRECT INJECTION DIESEL ENGINE [PDF]

open access: yesJournal of Engineering Science and Technology, 2018
Investigation of soot particle size and its distribution inside a direct injection diesel engine provides the idea of how soot particles are distributed in an engine cylinder, particularly near the cylinder wall.
M. A. ZUBER   +3 more
doaj  

Nanoscale Characteristics and Reactivity of Nascent Soot from n-Heptane/2,5-Dimethylfuran Inverse Diffusion Flames with/without Magnetic Fields

open access: yesEnergies, 2018
In this study, the differences of nanostructure and oxidation reactivity of the nascent soot formed in n-heptane/2,5-dimethylfuran (DMF) inverse diffusion flames (IDF) with/without influence of magnetic fields were studied, and the effects of DMF-doped ...
Bo Jiang   +4 more
doaj   +1 more source

The Molecular Composition of Soot

open access: yesAngewandte Chemie International Edition, 2020
AbstractSoot (sometimes referred to as black carbon) is produced when hydrocarbon fuels are burned. Our hypothesis is that polynuclear aromatic hydrocarbon (PAH) molecules are the dominant component of soot, with individual PAH molecules forming ordered stacks that agglomerate into primary particles (PP).
Rachelle S. Jacobson   +3 more
openaire   +4 more sources

Observation of Structural Changes during Oxidation of Black and Brown Soot Using Raman Spectroscopy

open access: yesC
In this study, Raman spectroscopy has been used to evaluate the evolution of the structural modification of soot during oxidation processes at various preset temperatures up to 700 °C.
Kim Cuong Le   +3 more
doaj   +1 more source

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