Characterization of zinc magnesium stannate phosphor fine particles synthesized by electromagnetic wave heating

Organic aerosol (OA), a large fraction of fine particles, has a large impact on climate radiative forcing and human health, and the impact depends strongly on size distributions. Here we...

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In situ preparation of fine particles and characterization of molecularly imprinted polymer for creatinine prepared from polymer anion and Al3+

Polymer ◽

10.1016/j.polymer.2021.123587 ◽

2021 ◽

pp. 123587

Author(s):

Min Gi Cho ◽

Seonghoon Hyeong ◽

Kyung Kgi Park ◽

Sung Hyo Chough

Keyword(s):

Molecularly Imprinted Polymer ◽

Fine Particles ◽

Imprinted Polymer ◽

Molecularly Imprinted ◽

In Situ Preparation

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Fabrication and Characterization of Double-layered Wide-band Electromagnetic Wave Absorber Consisting of Composite Ceramics

Journal of the Japan Society of Powder and Powder Metallurgy ◽

10.2497/jjspm.54.86 ◽

2007 ◽

Vol 54 (2) ◽

pp. 86-92

Author(s):

Kazutomo Abe ◽

Naoto Kitahara ◽

Daiju Sugiyama ◽

Fumiko Morifuji ◽

Mikio Higuchi ◽

...

Keyword(s):

Electromagnetic Wave ◽

Wide Band ◽

Composite Ceramics ◽

Fabrication And Characterization

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Effects of Assistance of High Frequency Dielectric and Infrared Heating on Vacuum Freeze Drying Characteristics of Food Model

Proceedings of 21th International Drying Symposium ◽

10.4995/ids2018.2018.7461 ◽

2018 ◽

Author(s):

Atsushi Hashimoto ◽

Ken-ichiro Suehara ◽

Takaharu Kameoka ◽

Kazuhiko Kawamura

Keyword(s):

Electromagnetic Wave ◽

Sodium Chloride ◽

High Frequency ◽

Freeze Drying ◽

Infrared Heating ◽

Drying Time ◽

Drying Characteristics ◽

Additive Component ◽

Wave Heating ◽

Food Model

By combining vacuum freeze drying combined with high-frequency dielectric and/or infrared heating, the drying time for frozen gels containing 1% agar with sucrose or sodium chloride was successfully shorten, and the drying time was influenced by the heating methods and by the additive component to the sample. Additionally, it was experimentally confirmed that the power consumption for freeze drying combined with electromagnetic wave heating could be reduced because of the shortened drying time. Consequently, this study could be a very important step for designing a vacuum freeze drying process optimally combining electromagnetic wave heating for each sample component.Keywords: freeze drying, electromagnetic wave heating, food model, sucrose, sodium chloride

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Morphological, chemical and optical absorbing characterization of aerosols in the urban atmosphere of Valladolid

Atmospheric Chemistry and Physics ◽

10.5194/acp-5-2739-2005 ◽

2005 ◽

Vol 5 (10) ◽

pp. 2739-2748 ◽

Cited By ~ 11

Author(s):

S. Mogo ◽

V. E. Cachorro ◽

A. M. de Frutos

Keyword(s):

Mass Fraction ◽

Fine Particles ◽

Aerosol Particles ◽

Cascade Impactor ◽

Urban Atmosphere ◽

Coarse Particles ◽

X Ray ◽

Illumination System ◽

Inverse Power Law

Abstract. Samples of atmospheric aerosol particles were collected in Valladolid, Spain, during the winter of 2003-2004. The measurements were made with a Dekati PM10 cascade impactor with four size stages: greater than 10 µm, between 2.5 to 10 µm, 1 to 2.5 µm and less than 1 µm. The size and shape of the particles were analyzed with a scanning electron microscope (SEM) and elemental analysis was done with an energy dispersive x-ray analysis (EDX). We present an evaluation by size, shape and composition of the major particulate species in the Valladolid urban atmosphere. The total aerosol concentration is very variable, ranging from 39.86 µg·m-3 to 184.88 µg·m-3 with the coarse particles as the dominant mass fraction. Emphasis was given to fine particles (<1 µm), for which the visible (400 nm to 650 nm) light absorption coefficients were measured using the integrating plate technique. We have made some enhancements in the illumination system of this measurement system. The absorption coefficient, σa, is highly variable and ranges from 7.33×10-6 m-1 to 1.01×10-4 m-1 at a wavelength of 550 nm. There is an inverse power law relationship between σa and wavelength, with an average exponent of -0.8.

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