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${AI_2}{O_3}$/ AI 및 ${SnO_2}-{AI_2}{O_3}$/AI박막습도 센서에 관한 연구
전춘생,Jeon, Chun-Saeng 한국재료학회 1994 한국재료학회지 Vol.4 No.2
순수한 알루미늄을 양극산화한 $AI_2O_3/AI$ 소자 및 그 위에$SnO_2$를 증착, 소자를 제작하여 그들의 전기적인 특성을 여러 습도 분위기 중에서 조사하였다. 단위습도당의 표면저항 변화는 $AI_2O_3/AI$ 소자에서는 $1.40 \times 10^{-2}\Omega$ /RH이었다. 두 소자는 습도에 따른 표면저항 변화중에서 hysteresis현상을 나타내고 있지만, $SnO_2-AI_2O_3/Al$ 소자쪽이 더 작은 hysteresis현상을 나타내었다. $SnO_2-AI_2O_3/Al$ 소자에 있어서 표면저항에 대한 온도의존성은 40-$60^{\circ}C$에서 $2.50 \times 10^{-2} \Omega /^{\circ}C$인것에비해 0~$20^{\circ}C$에서는 $0.56 \times 10^{-2} \Omega /^{\circ}C$와 같이 적기 때문에 $SnO_2-AI_2O_3/Al$ 소자는 실온영역에서 습도센서로 쓸 수 있다고 결론할 수 있다. Two kinds of humidity sensor are made, one by anodizing pure aluminum and the other by evaporation Sn02 on the anodized pure alumia film, and their electrical characteristics are investigated in various humidity atmosphere. The change of surface resistance with humidity of $AI_2O_3/AI$ and $SnO_2-AI_2O_3/Al$ sensors are found to be $1.40 \times 10^{-2}\Omega$/RH and $1.56 \times 10^{-2}\Omega$/RH, respectively. The hysteresis phenomena associated with the irreversibility of surface resistance-humidity is less in $SnO_2-AI_2O_3/Al$ sensor than in $AI_2O_3/AI$. It is concluded that $SnO_2-AI_2O_3/Al$ film can be used as humidity sensor in room temperature region because temperature dependence of surface resistance of the film is found to be as $0.56 \times 10^{-2} \Omega /^{\circ}C$ in O~ $20^{\circ}C$ range, where as $2.50 \times 10^{-2} \Omega /^{\circ}C$ in 40-$50^{\circ}C$.
소아(小兒)의 양생기공(養生氣功) 중(中) 단동치기(檀童治基) 십계훈(十戒訓) (단동십계체조(檀童十戒體操))에 관(關)한 연구(硏究)
전춘산,김장현,Jeon, Chun-San,Kim, Jang-Hyun 대한한방소아과학회 2008 대한한방소아과학회지 Vol.22 No.1
Objectives As children are physiologically and pathologically sensitive and likely to have trouble developing respiratory and the digestive system, it is necessary for them to improve and adapt to their digestive and respiratory capacity slowly. Although they desperately need to practice Healthcare Qi Gong as they get older, few studies have been conducted about that. While collecting materials on child Healthcare Qi Gong, In order to study more about Dan Dong Ten Lessons, medical researchers and children's parent should be more concerned to these studies. The purpose of this study was to understand Dan Dong Ten Lessons through research on children's healthcare Qi Gong. Methods This study was prepared through collecting data from past oriental medicine studies. Through the examination of Chinese medicine books and scientific studies about Dan Dong Ten Lessons and healthcare Qi Gong, Dan Dong Ten Lessons was classified and systemized. Results Dan Dong Exercise among the contents of children's healthcare Qi Gong was classified through the classification and theorization of Dan Dong Ten Lessons, although the classification and development of children's Qi Gong methods should have been carried out in the area of korean medicine, but it was not easy to find the references. Conclusions Dan Dong Ten Lessons is a song and Qi Gong therapy for children. It also teaches children how to live their life, guides them in the right direction for their life. Therefore, it should be developed academically and practically, so that it can pass down to the next generation as traditional heritage.
전춘진,김수현,김성수,강지훈,양만표 한국임상수의학회 2012 한국임상수의학회지 Vol.29 No.3
Fucoidan has been shown to enhance immune function. The objective of this study was to examine the in vitro effect of fucoidan on the chamotactic activity of canine peripheral blood polymorphonuclear cells (PMNs). The chemotactic activity of PMNs was evaluated by method of a modified Boyden chamber assay. The amount of interleukin (IL)-8 in the culture supernatants from peripheral blood mononuclear cells (PBMCs) treated with fucoidan was determined by means of ELISA. Fucoidan itself could not have chemoattract effects for PMNs. However, the chemotaxis of PMNs was remarkably enhanced by culture supernatant from PBMCs treated with fucoidan. Similarly,it was also increased by recombinant canine (rc) IL-8. These chemotactic activities of PMNs were inhibited by addition of anti-rcIL-8 polyclonal antibody (pAb). The amount of IL-8 in the culture supernatant from PBMCs was shown to increase upon treatment of fucoidan as compared with that of untreated PBMCs culture supernatant. These results suggest that fucoidan upregulates the chemotaxis of PMNs, which is mainly mediated by IL-8 released from fucoidanstimulated PBMCs.