Results 11 to 20 of about 1,255,021 (195)

Detection of Aerosol Particles from Siberian Biomass Burning over the Western North Pacific

open access: yesAtmosphere, 2020
Carbonaceous aerosol particles emitted from biomass burning (BB) have a large impact on the global climate. In particular, tarball particles (TBs), which are spherical organic aerosol particles, account for a large proportion of aerosol particles from BB.
Momoka Yoshizue   +6 more
doaj   +1 more source

CFD Investigation into the Effects of Surrounding Particle Location on the Drag Coefficient

open access: yesFluids, 2022
In the simulation of dilute gas-solid flows such as those seen in many industrial applications, the Lagrangian Particle Tracking method is used to track packets of individual particles through a converged fluid field.
David Dodds   +2 more
doaj   +1 more source

Chemical Properties and Source Profiles of Particulate Matter Collected on an Underground Subway Platform

open access: yesAsian Journal of Atmospheric Environment, 2015
Under a very tough situation that there has been increasing concern to the air quality in underground subway spaces, this study set sights on the thorough estimation of the chemical properties and source apportionment of particulate matter (PM) collected
Chang-Jin Ma   +3 more
doaj   +1 more source

Single-particle Raman spectroscopy for studying physical and chemical processes of atmospheric particles [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
Atmospheric particles experience various physical and chemical processes and change their properties during their lifetime. Most studies on atmospheric particles, both in laboratory and field measurements, rely on analyzing an ensemble of particles ...
Z. Liang, Y. Chu, M. Gen, C. K. Chan
doaj   +1 more source

Chemical Properties of the Individual Asian Dust Particles Clarified by Micro-PIXE Analytical System

open access: yesAsian Journal of Atmospheric Environment, 2014
The present study was undertaken to evaluate the chemical characteristics of Asian dust (hereafter called “AD”) particles with the aid of the most advanced micro-PIXE (Particle-induced X-ray emission) analytical technique.
Chang-Jin Ma   +3 more
doaj   +1 more source

Thermal and Hygroscopic Properties of Indoor Particulate Matter Collected on an Underground Subway Platform

open access: yesAsian Journal of Atmospheric Environment, 2015
In order to clarify the thermal and hygroscopic properties of indoor particulate matter (PM) in a semi-closed subway space, which is critically important for understanding of the distinctive particle formation processes as well as the assessment of their
Chang-Jin Ma   +4 more
doaj   +1 more source

Physicochemical Properties of Indoor Particulate Matter Collected on Subway Platforms in Japan

open access: yesAsian Journal of Atmospheric Environment, 2012
This study was aimed to thoroughly estimate the characteristics of indoor particulate matter (PM) collected on subway platforms by the cooperative approach of semi-bulk and single particle analyses.
Chang-Jin Ma   +3 more
doaj   +1 more source

Chemical Properties of Indoor Individual Particles Collected at the Daily Behavior Spaces of a Factory Worker

open access: yesAsian Journal of Atmospheric Environment, 2017
The main purpose of the study was to clarify the properties of individual particles collected at each behavior space of a factory worker. The samplings of size-segregated (PM2.1-1.1 and PM4.7-3.3) indoor particles were conducted at three different ...
Chang-Jin Ma   +2 more
doaj   +1 more source

Individual different state-based multi-swarm particle swarm optimization [PDF]

open access: yesPeerJ Computer Science
Particle swarm optimization (PSO) is a renowned stochastic optimization algorithm that has attracted extensive attention from researchers worldwide. However, most PSO variants suffer from slow convergence and are susceptible to local optima.
Qinghao Xu   +6 more
doaj   +2 more sources

Identical Quantum Particles, Entanglement, and Individuality [PDF]

open access: yesEntropy, 2019
Particles in classical physics are distinguishable objects, which can be picked out individually on the basis of their unique physical properties. By contrast, in the philosophy of physics, the standard view is that particles of the same kind (“identical particles”) are completely indistinguishable from each other and lack identity.
openaire   +3 more sources

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