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개의 Ethylene Glycol 중독에 대한 에탄올의 경구투여 효과
박철만,한홍률,Part Cheol-Man,Han Hong-Ryul 한국임상수의학회 1987 한국임상수의학회지 Vol.4 No.1
The present studies were undertaken in attempt to investigate the therapeutic effect of ethanol in dogs intoxicated with ethylene glycol Three dogs treated with ethylene glycol and other three dogs with ethylene glycol plus 20% ethanol orally were examined on clinical signs, endoscopic views, histopathological findings, and autopsy findings respectively. The results obtained were summarized as fellows : 1. The clinical sings and their severity of dogs intoxicated with ethylene glycol were time related and progressed from vomiting, depression, thirsty, tachycardia, tachypnea, convulsiot ataxia, melena, uremia and coma, but clinical signs of dogs treated with ethylene glycol and ethanol simultaneously only stowed vomiting and thirsty. 2. In the gastroscopic view, the dogs intoxicated with ethyelne glycol showed edematous, hyperemia, errosive and ulcerative lesions in the fundus and body area but the dogs treated with ethylene glycol and ethanol simultanously showed edematous and hyperemic lesions. 3. Oral treatment of ethanol with ethylene glycol simultaneously have reduced the signs of EG intoxications in dogs.
박철,강희주,이주연,김선영,배경열,김성완,김재민,신일선,윤진상,Park, Cheol,Kang, Hee-Ju,Lee, Ju-Yeon,Kim, Seon-Young,Bae, Kyung-Yeol,Kim, Sung-Wan,Kim, Jae-Min,Shin, Il-Seon,Yoon, Jin-Sang 대한불안의학회 2014 대한불안의학회지 Vol.10 No.1
Objectives : This study aimed to investigate the associations between physical disorders and prevalent/incident suicidal ideation in a community dwelling older population aged 65 years or over. Methods : 1204 people aged 65 years or over evaluated at baseline. Suicidal ideation was identified using the questions from the community version of the Geriatric Mental State Schedule ("GMS B3"). Reported physical disorders covering 11 common and generally chronic health problems were ascertained. Covariates included were depression, age, gender, years of education, accommodation status, past occupation, and current occupation. Of 1066 without suicidal ideation at baseline, 805 (76%) were followed 2 years later, and incident suicidal ideation was evaluated. Results : Prevalent suicidal ideation was significantly associated with 4 of 11 physical disorders: eyesight problems, persistent cough, heart disease and paralysis or weakness in one leg or arm. Incident suicidal ideation was associated with 3 physical disorders: asthma, high blood pressure and paralysis or weakness in one leg or arm. Both prevalent and incident suicidal ideation were significantly associated with increased number of physical disorders. Conclusions : Certain physical disorders were comorbid and precipitating factors of suicidal ideation in elders. And appropriate intervention and treatment of physical disorders might prevent suicidal ideation in elderly.
리튬이차전지 양극의 다층 구조 설계에 따른 전기화학적, 기계적 특성과 효과
박철,변승우,이용민 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
고분자 바인더는 리튬이차전지 내에서 복합 전극의 계면 접착력과 내부 결착력 같은 기계적 특성을 유지하기 위해 사용된다. 그러나 고분자 바인더의 함량이 증가할수록 전지용량이 감소하게 되고, 전해액의 함침에 의해 팽윤되어 탈리가 일어나는 등 전기화학적 특성 저하를 야기한다. 반면에 고분자 바인더의 함량을 낮출 경우, 결착력이 약화되어 탈리 현상이 발생하고 이로 인해 전극의 기계적 특성이 저하될 수 있다. 따라서 고분자 바인더를 적게 사용하여 복합 전극의 전기화학적 특성은 증가시키면서도, 기계적 특성을 유지할 수 있어야 한다. 본 연구에서는 양극을 설계함에 있어서 두 층이 각각 다른 조건으로 설계된 다층 구조를 도입하였다. 하부 층을 열처리하여 바인더를 변성시킨 다층 구조 양극을 제작하였다. 이후 SAICAS (Surface And Interfacial Cutting Analysis System) 장비를 이용해 복합 전극의 내부 결착력과 계면 접착력을 측정하여 기계적 특성을 분석하고, 설계와 같이 다층 구조가 형성되었는지 확인하였다. 또한, 해당 복합 전극을 기반으로 Coin cell을 제작하여 다양한 분석법(AC-IR, C-rate test 등)을 통해 전기화학적 특성을 분석하였다.