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심민섭,송형곤,정연권,송근정 대한응급의학회 2000 대한응급의학회지 Vol.11 No.4
Hypertension is a risk factor for developing fatal aortic dissection. Aortic dissection occurs 2~3 times as often in men than in women between ages of 50~70 years old. Among other risk factors, aortic dissection occurs especially in women below the age of 40 years old in pregnancy-related cases. In pregnancy-related cases, aortic dissection occurs n the third trimester and in puerperium, as well as in multiparous women. The writers experienced an aortic dissection related pregnancy. The patient was 32 years old, diagnosis of dissection occurred in the postpartum period. Although, aortic dissection is a rare complication of pregnancy, the knowledge of this may assist the emergency physician save the lives of patients.
'퇴원설명문'에 의한 72시간내 부적절한 응급센터 재방문의 감소
박하영,심민섭,송형곤,송근정 한국의료QA학회 2005 한국의료질향상학회지 Vol.12 No.1
Background : Patients who were discharged from the emergency department(ED) may revisit. These patients are divided into two groups; one is expected scheduled condition, the other is unexpected condition. These patients of inappropriate revisits to the ED would be unsatisfied, difficult to make rapport and take legal action as a result of additional medical charges. The purpose of this study was to reduce inappropriate revisits to the ED with a new method which was developed by analyzing inappropriate revisits in 2002. Methods : This study was conducted in a tertiary hospital consisting of 1,278 beds. The most common cause of inappropriate revisits was the medical team's lack of explanation about a disease. Thus we decided that the effective method was to offer full explanations to patients to understand the clinical pathway of a disease. We made four types of stickers to explain most common 4 diseases in 2003. An emergency physician completed 'discharge explanation report' and explained it to patients in 2004. Results : In 2002 inappropriate revisited patients were 164, patients with four diseases were 79. During the same period of 2003, inappropriate revisited patients were 56 (-65.9%), four disease patients were 6 (-92.4%) and in 2004 inappropriate revisited patients were 52, four disease patients were 19. Causes of revisits were lack of explanation about a disease in 35 patients (44.3%) in 2003, and 5 patients (83.3%) in 2003, and 16 patients (84.2%). Conclusions : Application of 'explanation stickers' at discharge reduced inappropriate revisits from 34.5% in 2002 to 15.9% in 2003. Application of 'Discharge explanation report' by emergency physician reduced inappropriate revisits from 15.9% in 2003 to 13.5% in 2004. Reduction of inappropriate revisits elevated the quality of medical treatment, and decreased patients' dissatisfaction in ED.
최서형,심민,김태수,민지연,최영규,Choi, Seo-Hyoung,Sim, Min,Kim, Tae-Soo,Min, Ji-Yeon,Choi, Young-Gyoo 대한한방내과학회 2005 大韓韓方內科學會誌 Vol.26 No.4
Objective : Liver cirrhosis is a disease of the liver in which normal cells are replated by scar tissue. Chronic liver disease and liver cirrhosis are the foutth ranked causes of death in Korea. However, clinical data on liver cirrhosis is not accumulated in oriental medicine. Therefore, clinical characteristics of 33 liver patients admitted to Hana Oriental Hospital from May 2004 to May 2005 were studied. Methods : Clinical characteristics of liver cirrhosis, such sex, age, causes, Child-Pugh class, chief complain, abdomen ultrasonography, disease duration, past history, blood test and urinalysis were reviewed. Results : The results of this study were as follows: 1 The distribution of sex and age in our study is similar to already reported statistics. 2. Hepatitis B and alcohol are the major factors to cause the liver cirrhosis. Diabetes and hypertention contribute more to cause than they have in previous histories. 3. Major symptoms are following: fatigue 87.9%, ascites 84.8%, jaundice 78.8%, leg edema 72.7%, dyspepsia 45.5%. 4. Most liver cirrhosis patients have pancytopenia. Standard Deviation accentuates the big differences between total bilirubin and serum amonia. 5. In urinalysis, Urobilinogen 19 patients (57.6%), bilirubin 12 patients (36.4%), blood 15 patients (45.5%) are positive. 11 cases of 15 in blood positive results scored $3{\sim}4+$. Contusions : In oriental medicine, it will be necessary to research and develop oriental medical therapies for liver disease including liver cirrhosis.
보수적 근사모델을 적용한 신뢰성기반 강건 최적설계 방법 기초연구
심형민(Hyoung Min Sim),송창용(Chang Yong Song),이종수(Jongsoo Lee) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
The methods of robust design optimization (RDO) and reliability-based robust design optimization referred as RBRDO are implemented in the present study. The RBRDO is an integrated method that accounts for the design robustness in objective function and for the reliability in constraints. The objective function in RBRDO is expressed in terms of mean and standard deviation of an original objective function so that the multi-objective formulation is to be employed. The regressive approximate models are generated via moving least squares method (MLSM) and constraint-feasible moving least squares method (CF-MLSM) that is possible to realize the feasibility regardless of the multimodality/nonlinearity of the constraint function during the approximate optimization processes. The regression model based RBRDO is newly devised and its numerical characteristics are explored using the design of an actively controlled ten bar truss structure.
보수적 근사모델을 적용한 신뢰성 기반 강건 최적설계 방법
심형민(Hyoung Min Sim),송창용(Chang Yong Song),이종수(Jongsoo Lee),최하영(Ha-Young Choi) 한국해양공학회 2012 韓國海洋工學會誌 Vol.26 No.6
The methods of robust design optimization(RDO) and reliability-based robust design optimization (RBRDO) were implemented in the present study. RBRDO is an integrated method that accounts for the design robustness of an objective function and for the reliability of constraints. The objective function in RBRDO is expressed in terms of the mean and standard deviation of an original objective function. Thus, a multi-objective formulation is employed. The regressive approximate models are generated via the moving least squares method(MLSM) and constraint-feasible moving least squares method (CF-MLSM), which make it possible to realize the feasibility regardless of the multimodality/nonlinearity of the constraint function during the approximate optimization processes. The regression model based RBRDO is newly devised and its numerical characteristics are explored using the design of an actively controlled ten bar truss structure.
디젤 엔진 연료 분사량 예측을 위한 HCS기반 신경망 근사모델링
심형민(Hyoung Min Sim),박재인(Jae In Park),이준규(Joon Kyu Lee),이수홍(Soo Hong Lee),이종수(Jongsoo Lee) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
In this paper, we proposed the use of hermit cubic spline and back-propagation neural networks to predict rates of injection in diesel engine fuel injection system. The rate of injection in the diesel engine is described in terms of energizing time and rail pressure, and its time integration corresponds to the total fuel quantity. All results verified the possibility of neural network based rates of injection prediction and hermite cubic spline interpolation method as well.
심민섭,김민정,박상오,송형곤,정연권,송근정 대한응급의학회 2002 대한응급의학회지 Vol.13 No.4
Cervical spine injury occurs in 3% of blunt trauma patients, and 10% of patients with cervical spine injuries have an associated head injury. The early recognition of cervical spine injury and treatment of the secondary injury are important in the management of trauma patients. At the time of diagnosis of cervical spine injury, 5∼30% of patients have been reported to have experienced missed or delayed diagnosis. Of these, 10.5∼29% were associated with permanent and critical neurologic injury, for example, death, quadriplesia, ect. The writers experienced two cases of missed traumatic cervical spine injury.
한국과 일본의 인터넷에서의 기본 소생술 정보의 신뢰성과 정확성 비교
심민섭,송근정,최필조,권운용,송형곤,정연권 대한응급의학회 2003 대한응급의학회지 Vol.14 No.1
Purpose: The internet is a vast resource for consumers. The internet is a decentralized, global medium, so quality management of health information is difficult for the lay person. Basic Life Support (BLS) is basic information provided for the lay person in the province of emergency medicine. The writers searched for BLS information on Korean and Japanese Web sites and assessed the quality of that information. Methods: We used the search engine 'Yahoo! Korea' in Korea and 'Yahoo! Japan' in Japan. The search references were 'Basic Life Support' and 'Cardiopulmonary Resuscitation (CPR). The assessment was based on three 'Credibility' and seven 'Content' factors. 'Credibility' factors composed of 'Source', 'Context' and 'Currency'. 'Content' factors composed of six factors of accuracy of six course of BLS and one factor of 'Original Source Stated'. We make our own criteria for each factors. And, If the web site fitted the criteria, we give 1 point, if not, give 0point. So, 'Credibility' factors point is 3 points full mark and 'Content' factors point is 7 points full mark. Results: Eight Korean and fifteen Japanese sites were found as a result of the search. No difference in 'Credibility' factors existed between the two nations' web sites. There was, however, a statistical difference in the 'Content' factors between the two nations' web site. The mean of 'Content' factors points is 3.75 and 5.06 in 7 points full mark, Korean web site and Japanese web site respectively. Conclusion: Improvement in the quality of BLS on internet web sites in needed, especially BLS on 'Recovery position', 'Assessment of circulation', and 'Cardian compression'.