유전실험법에 의한 가교폴리에틸렌의 절연특성 평가

김원종,임윤희,심낙순,심재선,방영근 三陟大學校 産業科學技術硏究所 2003 産業科學技術硏究論文集 Vol.8 No.1

In this paper, we estimated the insulation properties of cross-linked polyethylene (XLPE) for ultra-high voltage cable. we have studied the dielectric characteristics of XLPE due to frequency and temperature variation. The dielectric characteristics were measured in the temperature range from 25[℃] to l20[℃]. Also we measured in the voltage range of l[V] to 20[V] according to the step voltage application method. From FT-IR spectrum as an analysis of physical properties, a strong absorption in wavenumbers 700 to 730[cm^(-1)] 1456[cm^(-1)] and 2700 to 3000 [cm^(-1)] observed by the methyl group(CH₂). From the analysis of DSC. the crystalline melting points of the specimen observed in the temperature 60[℃] and 106.58[℃].

수면장애의 통합적 치료를 위한 수면센터의 역할

정화경,최희연,김진우,김선종,이승신,배정호,임원정,이향운 이화여자대학교 의과학연구소 2013 EMJ (Ewha medical journal) Vol.36 No.2

The prevalence of sleep disorder is about 30% of the population. Common sleep disorders are insomnia, obstructive sleep apnea, narcolepsy, restless legs syndrome, rapid eye movement sleep behavior disorder and parasomnia. These sleep disorders lead various medical and mental complications. However, most sleep disorders are underdiagnosed and not treated appropriately. Sleep medicine is important for treating these sleep disorders and maintaining general healthy conditions. Specialized and comprehensive treatments for sleep disorder are important in sleep medicine.

선천성 간섬유증 1예

최원영,윤선희,임인숙,석동수,최하진 대한병리학회 1991 Journal of Pathology and Translational Medicine Vol.25 No.1

The Association between Physical Activity and Anxiety Symptoms for General Adult Populations: An Analysis of the Dose-Response Relationship

Sun-Young Kim,Sang-Won Jeon,Mi Yeon Lee,Dong-Won Shin,Weon-Jeong Lim,Young-Chul Shin,Kang-Seob Oh 대한신경정신의학회 2020 PSYCHIATRY INVESTIGATION Vol.17 No.1

Objective: The aim of this study is to determine the dose-response relationship between physical activity and anxiety symptoms. Methods: We included data of 124,434 participants who had comprehensive health-screening examinations from January 1st, 2012, to December 31st, 2016, in Kangbuk Samsung Hospital, Seoul and Suwon, South Korea. We measured the level of physical activity using the International Physical Activity Questionnaire-short form (IPAQ-SF) and estimated anxiety symptoms using the Beck Anxiety Inventory (BAI). BAI scores of 19 and above were defined as cases. Logistic regression was used to analyze the association between physical activity and BAI-defined anxiety. Furthermore, we assessed whether sex differences might affect the relationship between physical activity and BAI-defined anxiety by stratifying our data. Results: Compared with the sedentary group (0-600 METs-min/week), individuals achieving 600-6,000 METs-min/wk had a significantly lower risk of BAI-defined anxiety with a U-shaped relationship in general adults. After stratifying our data by sex, we found that optimal ranges of physical activity were 600-9,000 METs-min/wk for men, but 1,200-3,000 METs-min/wk for women. Conclusion: We identified a U- or J-shaped association between physical activity and anxiety symptoms, suggesting an optimal dose and upper limit of physical activity for decreasing anxiety symptoms. Optimal levels and upper limits of physical activity for reducing anxiety symptoms were higher for men than for women.

P076 Effective treatment by long-pulsed Nd:YAG laser followed by intense pulsed light for facial flushing

( Sun Young Moon ),( Jae Hun Jun ),( Hyun Jung Lim ),( Soo Yuhl Chae ),( Yong Hyun Jang ),( Weon Ju Lee ),( Do Won Kim ),( Seok-jong Lee ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.2

<div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div> Background: Facial flushing has been controlled by intense pulsed light (IPL) with considerate success but more effective and safe treatment is expecting. Objectives: To evaluate the efficacy and safety of long-pulsed Nd:YAG laser (LPNYL, Genesis Excel V, Cutera) followed by IPL (Lumenis M22, Lumenis). The LPNYL laser was combined in order to provoke vasodilation in flushing patients and consequently potentiate the therapeutic effect of IPL. Methods: We retrospectively reviewed a total of 30 patients with mild to moderate facial flushing who were treated with LPNYL followed by IPL at 3 week interval, with an average of 3 treatments. Efficacy was evaluated using investigator’s global assessment and subjective satisfaction score. Results: Among them, 5 excellent improvement (75. 100%), 16 marked clinical improvement (51.75%) were achieved but 7 moderate (26.50%) and 2 minimal to no improvement (0.25%) were also done. Overall patient satisfaction revealed 8 “very satisfied”, 15 “satisfied”, 5 “slightly satisfied”, and 2 “unsatisfied”. Most patients showed minimal post-therapy facial edema, which usually resolved spontaneously within 2 days. Remarkable facial swelling was reported in 2 patients but it resolved within 7 days. Conclusion: The long-pulsed Nd:YAG laser followed by IPL for the purpose to eradicate flushing was effective with little morbidity and it may provide a new treatment algorithm for facial flushing.

The Relationship between Serum Vitamin D Levels, C-Reactive Protein, and Anxiety Symptoms

Sun-Young Kim,Sang-Won Jeon,Weon-Jeong Lim,Kang-Seob Oh,Dong-Won Shin,Sung Joon Cho,Jae-Hyun Park,Young-Chul Shin 대한신경정신의학회 2020 PSYCHIATRY INVESTIGATION Vol.17 No.4

Objective The aim of study is to investigate the relationship between serum vitamin D, c-reactive protein (CRP) levels, and anxiety symptoms. Methods Serum vitamin D and CRP levels of 51,003 Korean adult participants were collected retrospectively. Anxiety symptoms were assessed using the Korean version of Beck Anxiety Inventory. Logistic regression was used to estimate the odds ratio (ORs) of anxiety symptoms by serum vitamin D and CRP levels. The regression was adjusted for covariates, and each model was adjusted mutually for vitamin D and CRP levels. Results Compared with sufficient vitamin D levels (≥20 ng/mL), insufficient (10–19.99 ng/mL) and deficient (<10 ng/mL) vitamin D levels were significantly associated with risk of anxiety symptoms. Also, continuous vitamin D levels were negatively associated with the risk of anxiety symptoms. CRP levels did not affect the relationship between vitamin D levels and risk of anxiety symptoms. Conclusion Insufficient (10–19.99 ng/mL) and deficient (<10 ng/mL) vitamin D levels were significantly associated with risk of anxiety symptoms. After adjusting for CRP levels, the results were not changed, and no evidence of interaction between vitamin D and CRP levels was found. CRP levels did not account for the association between vitamin D levels and risk of anxiety symptoms.

수막에서 발생한 혈관외피 세포종 -혈관외피세포종성 수막종과 연부조직의 혈관외피세포종과의 상관관계에 대한 면역 조직 화학적 연구-

윤선희,최원영,이숙녀,임인숙,홍숙희 대한병리학회 1990 Journal of Pathology and Translational Medicine Vol.24 No.4

경안천 현장실험조에서 식물체를 이용한 조류 증식억제

정원화,임병진,전선옥 한국육수학회 2000 생태와 환경 Vol.33 No.3

팔당호 지류인 경안천 만입부에서 현장실험조를 이용하여 조류증식 억제 효율을 조사하였다. Microcystis가 우점하고 평균 Chl a 농도가 30∼50㎍/ℓ를 나타내는 경안천 만입부 현장실험조에서 습체식물 2.5g/ℓ투여 결과, 은행잎, 잣잎, 솔잎 투여조는 초기부터 조류증식억제 효과를 보이면서 조류가 최고 성장기에 이를 때까지 높은 효과를 나타내었다. 수생식물중 애기마름 투여조가 다른 식물 투여조에 비해 가장 효과가 좋았다. 7일째에 조류증식 억제율은 솔잎 85%, 은행잎 80%, 잣잎 75%, 애기마름 78%, 줄 59% 창포 투여조 30%순이었고, 갈대 투여조는 효과가 없었다. 솔잎, 잣잎, 은행잎, 애기마름을 건조시켜 0.25g/ℓ와 1g/ℓ로 투여한 결과, 솔잎과 애기마름은 0.25g/ℓ에서 각각 53%, 90%로 좋은 효과를 나타낸 반면, 잣잎과 은행잎은 1g/ℓ투여량에서 효과가 좋았다. 조류증식억제 효과 원인을 찾기 위해 식물체내 유기화합물을 분석해 본 결과 애기마름에서는 4-(4-hydroxy-phenyl)- 2-butanone과 2,4-bis(1,1-dimethylethyl)-phenol, p-CYMEN-8-OL이 검출되었고, 잣잎은 2,4-bis(1,1-dimethylethyl)-Phenol이 검출되었다.

Activator Protein-1 Mediates Docosahexaenoic Acid-induced Apoptosis of Human Gastric Cancer Cells

Lee, Sun En,Lim, Joo Weon,Kim, Hyeyoung Wiley (Blackwell Publishing) 2009 Annals of the New York Academy of Sciences Vol.1171 No.1

<P>Docosahexaenoic acid (DHA) shows anti-inflammatory and/or anticancer effects in some cells. Activator protein-1 (AP-1) regulates cellular proliferation and apoptosis. Although recent studies demonstrate the association between gastric cancer risk and DHA, the exact molecular mechanism has not been clarified. We investigated whether AP-1 mediates DHA-induced apoptosis of gastric cancer cells. We found that DHA induced cell death and DNA fragmentation in parallel with the activation of extracellular signal-regulated kinases (ERK) and c-Jun N-terminal kinases (JNK) as well as AP-1. DHA increased the protein levels of p53, cytochrome c, and Bax in gastric cancer cells. DHA-induced DNA fragmentation and protein levels of p53, cytochrome c, and Bax were inhibited in the cells transfected with c-jun dominant-negative mutant (TAM67). Because JNK and ERK are upstream signaling for AP-1 activation, we suggest that DHA-induced activation of AP-1 may mediate apoptosis of gastric cancer cells by inducing the expression of apoptotic genes in gastric cancer cells.</P>

Artificial Intelligent Clothing Embedded Digital Technologies

( Ho Sun Lim ),( Duck Weon Lee ),( Woo Sub Shim ) 한국패션비즈니스학회 2010 패션 비즈니스 Vol.14 No.6

With the rapid development of science and technology and the increased preference by consumers for high-function products, many products are being developed through the fusion of technologies in different industries. Among such fusion technologies, digital clothing which combines clothing with computer functions is being examined as a new growth item. The objectives of this study are to examine the concept, history, development, and market of intelligent clothing, in order to discuss future directions for the development of digital clothing technology, intelligent clothing (wearable computers) originated in the 1960s from the concept of separating computing equipment and attaching it to the body. This technology was studied intensively from the early 1980s and to the early 1990s. In the late 1990s, studies on wearable computers began to develop intelligent/digital clothing that was more comfortable and beneficial to users. Depending on the user and purpose, intelligent/digital clothing is now being developed and used in diverse industrial areas that include sports, medicine, military, entertainment, daily life, and business. Many experts forecast a huge growth potential for the digital textile/clothing market, and predict the fastest market growth in the field of healthcare/medicine. There exists a need to find solutions for many related technological, economic, and social issues for the steady dissemination and advancement of intelligent/digital clothing in various industries. Further, research should be continued on effective fusion technologies that reflect human sensitivity and that increase user convenience and benefits.