نتایج جستجو برای: secondary particles

تعداد نتایج: 454642  

Journal: :Environmental pollution 2007
Chih-Chung Lin Shui-Jen Chen Kuo-Lin Huang Wen-Jhy Lee Wen-Yinn Lin Chiu-Jung Liao Hso-Chi Chaung Chuen-Huey Chiu

This study investigated water-soluble ions in the sized particles (particularly nano (PM(0.01-0.056))/ultrafine (PM(0.01-0.1))) collected using MOUDI and Nano-MOUDI samplers near a busy road site and at a rural site. The analytical results demonstrate that nano and coarse particles exhibited the highest (16.3%) and lowest (8.37%) nitrate mass ratios, respectively. The mass ratio of NO(3)(-) was...

Journal: :The Journal of biological chemistry 2008
Alexander Heiss Thomas Eckert Anke Aretz Walter Richtering Wim van Dorp Cora Schäfer Willi Jahnen-Dechent

The serum protein fetuin-A is a potent systemic inhibitor of soft tissue calcification. Fetuin-A is highly effective in the formation and stabilization of protein-mineral colloids, referred to as calciprotein particles (CPPs). These particles ripen in vitro in a two-step process, indicated by a morphological conversion from spheres to larger prolate ellipsoids. Using a combined light scattering...

Journal: :Journal of hazardous materials 2014
Shili Tian Yuepeng Pan Zirui Liu Tianxue Wen Yuesi Wang

Using size-resolved filter sampling and chemical characterization, high concentrations of water-soluble ions, carbonaceous species and heavy metals were found in both fine (PM2.1) and coarse (PM2.1-9) particles in Beijing during haze events in early 2013. Even on clear days, average mass concentration of submicron particles (PM1.1) was several times higher than that previously measured in most ...

2013
M. Cusack N. Pérez J. Pey

The chemical composition and sources of ambient fine particulate matter (PM1) over a period of 2.5 years for a regional background site in the western Mediterranean are presented in this work. Furthermore, sub-micron particle number concentrations and the sources of these particles are also presented. The mean PM1 concentration for the measurement period was 8.9 μg m−3, with organic matter (OM)...

2014
Susanne Hoffmann Erin Koos Norbert Willenbacher

Adding a small amount of an immiscible fluid to a particle suspension can lead to particle bridging and network formation. This effect occurs both if the secondary fluid wets the particles better or worse than the bulk fluid. The capillary bridging phenomenon can be used to stabilize particle suspensions and precisely tune their rheological properties. This allows stable food products to be cre...

Journal: :European journal of histochemistry : EJH 2007
B Helliot B Panis J P Busogoro S Sobry Y Poumay M Raes R Swennen P Lepoivre

The immunogold-silver staining (IGSS) technique in combination with epi-fluorescence detection was used to localise cucumber mosaic virus (CMV) particles within banana infected tissues. For this purpose, tissue samples (2 mm3) were excised from CMV-infected and highly proliferating meristem cultures of Williams BSJ banana (ITC. 0570, AAA, Cavendish subgroup). These samples were immediately fixe...

2017
Sabina LEHOCKÁ Stanislav VOKÁL Adela KRAVČÁKOVÁ

This work presents the multiplicity correlations of secondary charged particles produced in interactions of O nuclei with photoemulsion nuclei at energy 3.7 GeV per nucleon. The dependence of the correlations on the centrality of interaction and also on the energy and on the mass number of primary nuclei has been studied. Obtained results have been compared with calculations from cascade – evap...

Journal: :Astrobiology 2013
Dimitra Atri B Hariharan Jean-Mathias Grießmeier

This past decade has seen tremendous advancements in the study of extrasolar planets. Observations are now made with increasing sophistication from both ground- and space-based instruments, and exoplanets are characterized with increasing precision. There is a class of particularly interesting exoplanets that reside in the habitable zone, which is defined as the area around a star where the pla...

Journal: :jundishapur journal of natural pharmaceutical products 0
neda bavarsad nanotechnology research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of pharmaceutics, school of pharmacy, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; nanotechnology research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

2012
Shang Liu Lars Ahlm Douglas A. Day Lynn M. Russell Yunliang Zhao Drew R. Gentner Robin J. Weber Allen H. Goldstein Mohammed Jaoui John H. Offenberg Tadeusz E. Kleindienst Caitlin Rubitschun Jason D. Surratt Rebecca J. Sheesley Scott Scheller

[1] Secondary organic aerosols (SOA), known to form in the atmosphere from oxidation of volatile organic compounds (VOCs) emitted by anthropogenic and biogenic sources, are a poorly understood but substantial component of atmospheric particles. In this study, we examined the chemical and physical properties of SOA at Bakersfield, California, a site influenced by anthropogenic and terrestrial bi...

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