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김승환,김옥준,장석준,정구영,김승호 대한응급의학회 1993 대한응급의학회지 Vol.4 No.2
Discharge against medical advice(AMA) in the emergency department is a frustrating, painful event to both patients and emergency physicians and emergency physicians. A retrospective chart review of 347 consecutive AMA patient from our emergency department from December 1992 to May 1993. Among them, 185 patients were interviewed with our researcher about primary cause of AMA through telephone contact. The results were as follows : 1. Total 9,705 patients visited our emergency department during 6-months period and there was 347 AMA patients(3.6%) 2. The main reasons for 185 AMA were ; 1) patients' or family's own problem in 114 cases(61.6%) 2) changes in patient condition(terminal case, improvement) in 56 cases(30.3%). 3) dissatisfaction to medical services in 15 cases(8.1%) 3. During same period, there was 117 cases of drug intoxication mainly due to suicidal attempt and 18 AMA was noted. Among 18 AMA cases, 16 patients discharged against medical advice due to patients' own problem(mainly due to economical problem) but none of them revisited OPD or emergency department. 4. Eight of 40 AMA patients with symptom improvement were managed in OPD, emergency department or other hospital but none of them admitted. In conclusion, we noticed that the main cause of AMA is non-medical problem in Korea and there should be continuous effert to improve our medical insurance system, emergency medical services system. Only through the judicious use of AMA, it can be used as a tool of determining patient satisfaction and quality improvement in emergency medical field.
노인 인구에서 신경인지기능저하와 혈청 지질농도와의 상관성
유영선,최석주,정성수,김지은,윤성욱,전동욱,백준형,박성우,이정구,추일한,김영훈 大韓神經精神醫學會 2008 신경정신의학 Vol.47 No.6
Objectives : In this study, the authors evaluated the correlation between eurocognitive impairments and serum lipids levels among Korean elderly over the age of 65. Methods : A total of 609 elderly individuals participated in this study. Screening for cognitive impairments were carried out using the Mini-Mental Status Examination-Korean version (MMSE-KC). There were 197 subjects above 1.5SD Of MMSE- KC and they were evaluated using the Korean versions of the Consortium to Establish a Registry for Alzheimer's Disease (AD) (CERAD-KC) and Geriatric Depression Scale (GDS-K). Results : There was a correlation between old age/low levels of education and AD (p<0.05, P<0.01). There was an inverse correlation between the serum level of total cholesterol and the word list recognition test scores. The serum levels of LDL cholesterol were inversely correlated with the scores on the constructional praxis test, word list recall test and word list recognition test. Inverse correlations between the serum level of triglyceride and scores on the word list recall test and word list recognition test were also observed. Conclusion : There were inverse correlations between the serum levels of lipids and language/memory function in subjects with AD.
Kim, Jung Goo,Kim, Hee Chul,Kwon, Jun Beom,Shin, Dong Kil,Lee, Jung Ju,Huh, Hoon SAGE Publications 2015 Journal of composite materials Vol.49 No.10
<P>Tensile behaviors of aluminum/carbon fiber reinforced polymer hybrid composites with different carbon fiber reinforced polymer stacking sequences were measured at strain rates between 0.001/s and 100/s and properties of the hybrid composites were compared to the results of aluminum and carbon fiber reinforced polymer tested under the same conditions. In the aluminum specimen, negative strain rate sensitivity resulted in a significant decrease in the tensile strength and positive strain rate sensitivity resulted in an increase in failure strain at higher strain rates. However, in the hybrid composite specimen, both the tensile strength and the failure strain could be increased as the strain rate increased by reinforcing the aluminum with carbon fiber reinforced polymer. The differences in tensile properties and the degree of strain rate sensitivity were extensive depending on the stacking sequence of the carbon fiber reinforced polymer layer. A Weibull function with scale parameter σ<SUB>0</SUB> and shape parameter β was used in order to describe the relation between stress and strain of aluminum/carbon fiber reinforced polymer hybrid composites, and the constitutive equation established by the Weibull function described the tensile behavior of the hybrid composites very well.</P>
황정구(Hwang-Jung Goo),정승태(Seung-Tae Jung),이화춘(Hwa-Chun Lee),박성준(Sung-Jun Park) 전력전자학회 2011 전력전자학술대회 논문집 Vol.2011 No.7
현재 지능형 빌딩시스템에 도입되어 있는 스마트 분전반은 스마트 그리드 시스템과 연계하여 전력 수요를 분산시키는 기능 등 다양한 기능을 갖는다. 하지만 예측 불가능한 부하 종류와 운전 패턴에 따른 부하 불평형에 의해 발생하는 전력품질 저하, 전력기기 오작동 등에 능동적인 대처는 역부족이다. 따라서 본 논문에서는 지능형 분전반 운용 알고리즘을 통한 부하관리 시스템을 제안하여 부하 불평형에 따른 피해를 최소화하고자 한다.