• Title/Summary/Keyword: Kitagawa

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The chemical reactivity of detecting tube detection equipment for incident responder (화학사고 초기대응자를 위한 검지관식 탐지장비의 반응성 연구)

  • Ahn, Seung-Young;Kim, Jungmin;Kim, Sungbum;Chun, Kwangsoo;Lee, Jin-Seon;Park, Choonhwa
    • Journal of the Society of Disaster Information
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    • v.10 no.1
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    • pp.33-39
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    • 2014
  • Chemical accidents are the cause of the accident site during the initial responders to quickly and easily see materials and concentration method for the U.S. Environmental Protection Agency(EPA) is widely used in the initial response team direct reading detection equipment used. Ministry of the tubular gas detection equipment to detect direct reading detection equipment used in the event of an accident scene, and shell-and-tube gas detector for rapid detection and identification and precise analysis of causative pollutants before about strategically can identify the quantitative and qualitative useful equipment. However, those who initially respond to the scene of a direct reading detection equipment and a simple lack of understanding of how to use the numbers only because of the way you want to check the accuracy of detection results have been raising questions about the increase. The scene of the accident in order to obtain an accurate detection results used in this paper, the Ministry of Environment of gas detectors detect tubular Kitagawa and Draeger detector tube to check the reactivity of the material on-site detection of early response of those who were to raise the accuracy of the results.

Anti-inflammatory Effects of Achyranthes japonica Nakai and Aralia continentalis Kitagawa Complex Fermented Extracts on LPS-stimulated RAW264.7 Macrophage (LPS로 자극된 RAW264.7 대식세포에서 우슬 및 땅두릅 복합 발효추출물의 항염증 효과)

  • Woo, Young Min;Jo, Eun Sol;Kim, Ok Ju;Lee, Young-Ho;Ahn, Mee Young;Lee, Dong-Geun;Lee, Sang-Hyeon;Ha, Jong-Myung;Kim, Andre
    • Applied Chemistry for Engineering
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    • v.30 no.4
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    • pp.479-486
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    • 2019
  • This study investigated the anti-inflammatory effects of mixed extracts of Achyranthes japonica Nakai (Aj) and Aralia continentalis Kitagawa (Ac) (ratios of 1 : 2, 1 : 3, 1 : 5, 2 : 1, 3 : 1 and 5 : 1) on RAW264.7 macrophages. Cell toxicity was determined using a cell counting kit (CCK) assay. We evaluated anti-inflammatory effects of the mixed extracts of Aj and Ac by measuring interleukin $(IL)-1{\beta}$, IL-6, and tumor necrosis factor $(TNF){\alpha}$ using an enzyme-linked immunosorbent assay (ELISA) kit assay. The mixed extracts of Aj and Ac inhibited lipopolysaccharide (LPS)-induced $IL-1{\beta}$ and $TNF{\alpha}$ in LPS-stimulated macrophages. Comparing different ratios of the mixed extracts, the 2 : 1 ratio of Aj and Ac has much more potency and inhibited the production of $TNF{\alpha}$ in LPS-induced RAW264.7 cells. The results of the present study showed that the mixed extracts of Aj and Ac have potential anti-inflammatory effects on RAW264.7 macrophages. Therefore, these extracts may be used as a good source of functional foods for the protection against inflammatory diseases.

Enhancement of the Anti-inflammatory Activities of Aralia continentalis Kitagawa Extracts Fermented by Lactobacillus plantarum (추출용액에 따른 유산균 발효 땅두릅의 항염증 효과)

  • Woo, Young Min;Kim, Ok Ju;Jo, Eun Sol;Jo, Min Young;Ahn, Mee Young;Lee, Sang-Hyeon;Ha, Jong-Myung;Kim, Andre
    • Journal of Life Science
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    • v.28 no.12
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    • pp.1438-1447
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    • 2018
  • We investigated the anti-inflammatory activities of various organic solvent extracts with and without Lactobacillus plantarum fermentation of Aralia continentalis Kitagawa which has hypotensive effects in addition to excitatory effects on the central nervous system. It has been used to treat arthritis, colds, neuralgia, rheumatism, and itchy skin. Our extracts were tested for their anti-inflammatory potential on NO production and the expression of inflammatory factors in lipopolysaccharide-stimulated RAW264.7 macrophages. Extracts with and without L. plantarum fermentation were prepared using water, ethanol, hexane, ethyl acetate, and butanol. The RAW264.7 cells were tested for toxicity and the anti-inflammatory activity of each extract was determined at a concentration with no toxicity to the cells. The extracts used in this study significantly inhibited both the production of NO and the mRNA expression of COX-2 and iNOS, the major inflammatory factors. The production of inflammation-related cytokines $IL-1{\beta}$, IL-6, and $TNF-{\alpha}$ was also significantly reduced. These results suggest that the extracts involving fermentation by L. plantarum can inhibit cytokines by controlling the expression of inflammatory cytokine genes. It is considered that the water, ethanol, and butanol extracts after fermentation with L. plantarum could be useful as functional natural materials with anti-inflammatory effects.

Space Analysis of a Traditional Town for Designing Evacuation Routes considering Probability of Building Collapse

  • Hidaka, Yutaro;Mishima, Nobuo;Wakuya, Hiroshi;Hayashida, Yukuo;Okazaki, Yasuhisa;Kitagawa, Keiko;Park, Sun-gyu;Oh, Yong-sun
    • Proceedings of the Korea Contents Association Conference
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    • 2015.05a
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    • pp.7-8
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    • 2015
  • Analysis of evacuation routes for traditional buildings is important. In this study, we considered the evacuation routes using the probability of building collapse and analyzed the open space of traditional town. We considered evacuation routes from traditional houses to designated refuge places, and analysis the relationship of open space and evacuation routes.

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Research and Development of High Luminous Efficacy Plasma Displays

  • Kosugi, Naoki;Akiyama, Toshiyuki;Kitagawa, Masatoshi;Shinodaq, Tsutae
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.57-60
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    • 2008
  • Over 5lm/W white luminous efficacy was obtained by 11" color test panel with narrowed discharge electrodes combined with high Xe partial pressure. By using optical spectroscopic methods, it was suggested that the electron heating efficiency is the most significant to improve the plasma efficiency in our experimental conditions.

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Clustering Analysis on Heart Rate Variation in Daytime Work

  • Hayashida, Yukuo;Kidou, Keiko;Mishima, Nobuo;Kitagawa, Keiko;Yoo, Jaesoo;Park, SunGyu;Oh, Yong-sun
    • Proceedings of the Korea Contents Association Conference
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    • 2017.05a
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    • pp.257-258
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    • 2017
  • Modern society tends to bring excessive labor to people and, therefore, further health management is required. In this paper, by using the clustering technique, one of machine learning methods, we try to bring out the measure of fatigue from heart rate (HR) variation during daytime work, helping people to get high-quality of healthy and calm life.

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