著者

谷村 泰宏

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.17, no.1, pp.14-17, 2002-03-20 (Released:2008-11-26)

参考文献数

11

被引用文献数

1

著者

安田 啓司

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.26, no.1, pp.5-10, 2011 (Released:2011-04-12)

参考文献数

6

被引用文献数

1

---

Separation characteristics of various solutes from the aqueous solutions with ultrasonic atomization were experimentally investigated. Monohydric alcohols and ketone were concentrated in the atomized droplets from the aqueous solution, while alcohol and amides were diluted in the droplets. These results suggest that the hydrophilic and hydrophobic properties of solute molecules may determine the separation characteristics of ultrasonic atomization. In order to develop a concentrator with ultrasonic atomization, ultrasonic atomization of ethanol aqueous solution was conducted. The atomization rate of water was the highest at the beginning of atomization, and the initial depth of solution which gave the maximum atomization rate of water was decreased with increasing the ultrasonic frequency. The atomization rate of ethanol was increased with the net electric power applied to the ultrasonic transducer, but it remained almost constant at different ultrasonic frequencies. At a relatively high net electric power, the atomization rate of water increased with the diameter of reservoir, while alcohol content in the atomized droplets were unaffected by the reservoir diameter.

著者

岩坂 泰信

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.9, no.2, pp.127-133, 1994-06-20 (Released:2010-08-27)

参考文献数

11

著者

佐伯 琳々 金 佑勁

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.36, no.3, pp.157-163, 2021-09-20 (Released:2021-10-08)

参考文献数

30

著者

入江 建久

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.13, no.1, pp.5-12, 1998-03-20 (Released:2010-02-03)

参考文献数

11

被引用文献数

1

著者

松井 浩 池沢 芳夫

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.4, no.1, pp.17-25, 1989-03-20 (Released:2011-06-23)

参考文献数

35

著者

東 秀憲 玉舘 知也 瀬戸 章文 大谷 吉生

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.33, no.3, pp.168-174, 2018-09-20 (Released:2018-10-04)

参考文献数

39

著者

王 青躍 栗原 幸大 桐生 浩希 坂本 和彦 三輪 誠 内山 巌雄

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.23, no.2, pp.120-126, 2008-06-20 (Released:2008-06-25)

参考文献数

22

被引用文献数

2

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In this study, we focus on the investigation of the airborne behavior of respirable particulate matters containing Japanese cedar pollen allergen Cry j 1 exfoliated from the Ubisch bodies on the pollen surfaces and Cry j 2 comprised in the starch granules within the pollen. The airborne Japanese cedar pollens were counted, and at the same time, the Cry j 1 and Cry j 2 particles were collected and determined in different particle sizes at the urban site (Cooperative Research Center of Saitama University) during daily sampling periods of the most severe pollination season of FY 2005 in Saitama, Japan.Morphological observation of Ubisch bodies exfoliated from pollen and ruptured pollens was performed with a scanning electron microscope. Moreover, the existing evidences of visualized Cry j 1 and Cry j 2 allergen particles below 1.1μm were also sensitively found by an immunofluorescence technique with a fluorescence microscope. Simultaneously, the high concentrations of Cry j 1 and/or Cry j 2 were determined in the fine particle sizes below 1.1μm. It was suggested that airborne respirable particulate matters containing Cry j 1 and Cry j 2 play a key role in the increasing incidence of asthma in the lower respiratory tract. Furthermore, although the release mechanisms of Cry j 1 and a Cry j 2 particles may be differed, the daily variation delays in the peaks of Cry j 1 (or Cry j 2) concentrations compared to the peaks of airborne pollen counts were observed since the fine particles were suspended in the atmosphere over a longer period of time after released. It is important to observe and determine the size distribution of airborne Japanese cedar pollen allergen particles in the long-term sampling research continually, and to elucidate the allergen particle release mechanisms. In the future, we should investigate the chemical, physical and biomedical combination effects on Japanese cedar pollen allergens, and have to consider proposing a new forecast informational system of the Japanese cedar pollen and their allergen particle variations.

著者

池田 耕一

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.15, no.1, pp.5-13, 2000-03-20 (Released:2009-04-14)

参考文献数

19

著者

清水 厚

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.33, no.2, pp.84-88, 2018-06-20 (Released:2018-06-29)

参考文献数

15

著者

田中 茂

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.9, no.2, pp.120-126, 1994-06-20 (Released:2010-08-27)

参考文献数

21

被引用文献数

1

著者

池田 有光 村野 健太郎 畠山 史郎

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.9, no.2, pp.102-108, 1994-06-20 (Released:2010-08-27)

参考文献数

8

著者

藤本 武利

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.14, no.1, pp.19-26, 1999-03-20 (Released:2009-11-27)

参考文献数

29

被引用文献数

4

著者

伊藤 隆

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.36, no.4, pp.237-245, 2021-12-20 (Released:2021-12-24)

参考文献数

29

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Severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2) is the virus that causes the new coronavirus infection (COVID-19). The molecular structural basis of SARS-CoV-2 infection has been investigated by various structural biological studies including three-dimensional (3D) structural analysis of virus Spike protein, which directly mediates infection to human cells through the interaction with Angiotensin-converting enzyme 2 (ACE2), which locates on the cell surface of some of our tissues (e.g. lungs). Further, the 3D structures of main protease (3CLpro) and RNA-dependent RNA polymerase (RdRp) of SARS-CoV-2 provided useful information for understanding the mechanism of the amplification of viral genome RNA in our cells. In this paper, I would like to give an easy-to-understand overview of the current state of structural biology studies related to COVID-19, and also discuss the possibility of rational design of drugs.

著者

山口 真弘 伊豆田 猛

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.36, no.1, pp.39-44, 2021-03-20 (Released:2021-03-25)

参考文献数

26

著者

諏訪 好英

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.36, no.4, pp.246-252, 2021-12-20 (Released:2021-12-24)

参考文献数

19

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Worldwide pandemic by COVID-19 still continues. Ventilation is recommended as one of the important measures against virus infection. However, if ventilation measures are taken in the wrong way, not only the measures can’t reduce the risk of infection, but also they may make increase it. The effect of ventilation as an infection control, how to determine the volume flow rate requirement, and the ventilation method for effective air exchange has been studied. Based on these results, how we should consider effective ventilation to reduce the risk of viral infections were discussed in this paper.

著者

高田 滋 青木 一生

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.10, no.2, pp.95-105, 1995-06-20 (Released:2010-07-22)

参考文献数

49

被引用文献数

1

著者

八島 正明

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.34, no.3, pp.159-166, 2019-09-20 (Released:2019-10-26)

参考文献数

15

被引用文献数

1

著者

秋吉 優史 綿野 哲 落合 剛

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.36, no.4, pp.263-272, 2021-12-20 (Released:2021-12-24)

参考文献数

24

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A small air cleaner with the visible-light-responding photocatalyst was developed. This air cleaner is specialized in removal of the splashed droplets which flies between facing peoples to cope with various infectious diseases. Photocatalyst of a tungsten trioxide system which response efficiently to visible-light was sprayed on a conventional nonwoven fabric filter with a visible-light LED module and a silent type fan are applied. The photocatalyst was excited by visible-light to generate active oxygen that oxidizes and decompose various organic matters. In this study, the physical performance of the air purifier was estimated, 1) the removal action of splashed droplets from the oral cavity with special motion-picture system, 2) evaluation of the transmittance of droplets to the filter and 3) droplets capture performance in a clean bench. Furthermore, performance of the photocatalyst system was evaluated by formaldehyde gas decomposition rate in a small chamber. As a result, droplets of 5 micrometers or more can be removed effectively by the small air purifier, and it is considered that the virus contained in the droplets caught by the filter will be inactivated with the photocatalyst by degrees.

著者

南 光太郎 堅田 元喜 北 和之 反町 篤行 保坂 健太郎 五十嵐 康人

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.35, no.3, pp.208-218, 2020

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<p> Following the Fukushima Daiichi nuclear power plant accident, it has been recognized that bioaerosols with radioactive cesium may have released from radiologically contaminated forest into the atmosphere. In order to evaluate the above process, the emission rate of bioaerosol was inversely estimated using a numerical model named SOLVEG that includes the processes of emission, deposition, and turbulent transport of aerosols. For the inverse estimation, micrometeorological variables and bioaerosol number concentration and flux were observed at a Japanese temperate broad-leaved forest in summer. By tuning modelled emission rate of bioaerosols from forest floor, its best estimate was obtained at the agreement between calculated and observed concentrations below the canopy. General trends of calculated momentum, heat, and bioaerosol fluxes above the canopy were also reproduced in the simulation. In the numerical experiment without bioaerosol input at the top of atmosphere above the canopy, a certain amount (59%) of bioaerosol flux at the floor released above the canopy top, while the rest of the flux deposited onto both canopy and soil. This potential flux above the canopy top was 2.0±1.8×10^-2 μg m^-2 s^-1, which may correspond to the re-emission rate proposed previously by the chemical transport model.</p>