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29 results on '"Kawakami, Hitomi"'

2. Inhibition of G protein-coupled receptor 68 using homoharringtonine attenuates chronic kidney disease-associated cardiac impairment

Author

Yoshida, Yuya, Fukuoka, Kohei, Sakugawa, Miyu, Kurogi, Masayuki, Hamamura, Kengo, Hamasaki, Keika, Tsurusaki, Fumiaki, Sotono, Kurumi, Nishi, Takumi, Fukuda, Taiki, Kumamoto, Taisei, Oyama, Kosuke, Ogino, Takashi, Tsuruta, Akito, Mayanagi, Kouta, Yamashita, Tomohiro, Fuchino, Hiroyuki, Kawahara, Nobuo, Yoshimatsu, Kayo, Kawakami, Hitomi, Koyanagi, Satoru, Matsunaga, Naoya, and Ohdo, Shigehiro

Published
2024
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4. Utilization of Inedible Parts of Aralia cordata with High-Content Chlorogenic Acid Cultivated in Tokyo.

Author

Matsuo, Hirotaka, Kawakami, Hitomi, Otsuki, Yuka, Miyashita, Chieto, Kawahara, Nobuo, Fuchino, Hiroyuki, and Yoshimatsu, Kayo

Abstract

Aralia cordata is called "Udo" and is one of the famous herbaceous perennial plants found in Korea, China, and Japan. In Japan, aerial parts of A. cordata have been consumed. Furthermore, its rhizome and root are utilized as crude drugs known as "dokukatsu" and "wakyoukatsu", respectively. A. cordata is cultivated as a vegetable in many places in Japan, and one of the production areas is Tokyo. A. cordata made in Tokyo is known as a high-quality "Udo" product (aerial part) using a unique cultivation method, known as "Udo muro". "Udo muro" blocks light and maintains optimal temperature and humidity throughout the year, facilitating the soft cultivation of udo. However, the roots of A. cordata cultivated in Tokyo are all discarded. Thus, the utilization of the A. cordata root cultivated in Tokyo might lead to sustainability and income improvement for farmers. In this study, we investigated the effect of "Udo muro" with or without cultivation and drying temperature on chlorogenic acid (CA) contents in A. cordata root and compared it with A. cordata produced in other areas ("wakyoukatsu") by a quantitative analysis of the CA content using high-performance liquid chromatography. The results indicate that the CA content of the roots of A. cordata grown in Tokyo was higher than those grown in other areas. Furthermore, the usefulness of A. cordata root was evaluated using inhibitory activity tests such as nitric oxide production and melanin production using Raw264.7 and B16F10 cell lines, respectively. [ABSTRACT FROM AUTHOR]

Published
2024
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12. Two-stage-type electrostatic precipitator re-entrainment phenomena under diesel flue gases

Author

Zukeran, Akinori, Ikeda, Yasushi, Ehara, Yoshiyasu, Matsuyama, Minoru, Ito, Tairo, Takahashi, Takeo, Kawakami, Hitomi, and Takamatsu, Takeshi

Subjects
Electrostatic precipitation -- Research, Diesel motor exhaust gas -- Research, Air pollution -- Research, Pollution control equipment -- Research, Business, Computers, Electronics, Electronics and electrical industries
Abstract

One of the applications of the electrostatic precipitator (ESP) is the cleaning of air to increase the visibility index in highway tunnels. Particles floating in air in highway tunnels are mainly carbon. Collection efficiency of a large particle diameter in an ESP often decreases when the ESP collects carbon particles which have low electric resistance. Collection efficiency often becomes negative in an experimental ESP. The negative collection efficiency means that the particle concentration flowing downstream is greater than that upstream in the ESP. This phenomenon is explained as the re-entrainment of particles. In this paper, experiments were carried out to investigate the cause of the decrease in efficiency of particle collection of the ESP. The time characteristic of the collection efficiency and the distribution of particle size on the collection electrodes were studied. Experimental results showed that the decrease in the collection efficiency was caused by re-entrainment of particles during the ESP operation. The effect of gas-flow velocity on the collection efficiency of the ESP was also investigated to study the cause of re-entrainment phenomena. The result showed that the re-entrainment phenomena depended on the gas-flow velocity. Index Terms - Diesel exhaust particles, electrostatic precipitator, highway tunnel, re-entrainment.

Published
1999

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