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일부 농촌주민에서 Alcohol Use Disorders Identification Test를 이용한 위험 및 유해 음주율 조사
김형수,이건세,김청식,김기옥,장성훈,Kim, Hyeong-Su,Lee, Kun-Sei,Kim, Cheong-Sik,Kim, Ki-Ock,Chang, Soung-Hoon 대한예방의학회 2001 예방의학회지 Vol.34 No.3
Objectives : To investigate the prevalence of hazardous and harmful alcohol use, which are a subthreshold of alcohol related disorders, Methods : Direct-interview questionnaires to 1,183 rural persons (489 male, 694 female) were conducted in Chungju-city from July 2 to 20, 1998. As a screening instrument, the alcohol use disorders identification test (AUDIT) was used. Results : The prevalence of alcohol use was 41.7%. In males, it was 66.3% and in females, it was 24.4%. The mean of the AUDIT score of males and females was 13.2 and 5.6, respectively. As WHO guideline, the prevalence of hazardous alcohol use in males and females was 80.3% and 20.7%, respectively. This suggests that the prevalence of 'hazardous drinking' and 'harmful drinking' was 45.4% and 29.3% for males and 1.2% and 2.4% for females, respectively. Conclusions : This study presented the prevalence of hazardous and harmful drinking of a rural population in Korea and reviewed those health problems. Further evaluation to detect and treat lower alcoholic drinkers is recommended.
분말사출성형 시 분말 혼합체의 유동성 시뮬레이션을 통한 투광성 알루미나 소결체의 특성 연구
김형수,변종민,김세훈,김영도,Kim, Hyung Soo,Byun, Jong Min,Kim, Se Hoon,Kim, Young Do 한국분말야금학회 2014 한국분말재료학회지 (KPMI) Vol.21 No.3
Translucent alumina is a potential candidate for high temperature application as a replacement of the glass or polymer. Recently, due to the increasing demand of high power light emitting diode (LED), there is a growing interest in the translucent alumina. Since the translucent property is very sensitive to the internal defect, such as voids inside or abnormal grain growth of sintered alumina, it is important to fabricate the defect-free product through the fabrication process. Powder injection molding (PIM) has been commonly applied for the fabrication of complex shaped products. Among the many parameters of PIM, the flowability of powder/binder mixture becomes more significant especially for the shape of the cavity with thin thickness. Two different positions of the gate were applied during PIM using the disc type of die. The binder was removed by solvent extraction method and the brown compact was sintered at $1750^{\circ}C$ for 3 hours in a vacuum. The flowability was also simulated using moldflow (MPI 6.0) with two different types of gate. The effect of the flowability of powder/binder mixture on the microstructure of the sintered specimen was studied with the analysis of the simulation result.
부여 취수장의 $NH_3-N$자료에 대한 평균 및 분산추정
김형수,정건희,김응석,김중훈,Kim, Hyeong-Su,Jeong, Geon-Hui,Kim, Eung-Seok,Kim, Jung-Hun 한국수자원학회 2001 한국수자원학회논문집 Vol.34 No.4
실험 또는 계측에 의해 관측된 관측치들은 종종 어떤 기준치 이하의 작은 값들이 기록되는데, 이들 기준치 이하의 값들이 크기는 미소할지라도 평균이나 분산 추정시 왜곡된 결과를 줄 수 있다. 그러나 우리 나라에서는 관측오차로 간주하여 N.D.(Not Detected)로 처리하는 것을 관례로 하고 있어 미소치들이 기록되지 않고 있다. EK라서 본 연구에서는 부여 취수장의 암모니아성 질소(NH$_3$-N)자료가 크기에 따라 분표형이 다름을 조사하고 그 분포를 구별할 수 있는 기준치와 기준치 이하의 자료들에 대한 평균과 분산 추정시 가장 적절한 기법을 찾고자 하였다. 즉, 기준치 이하의 값들과 이상의 값들을 구분하여 평균과 분산을 위한 적절한 기법을 선정하여 추정하였다. 분석 결과 부여취사장의 자료는 편기 수정된 최우도(Bias Corrected ML)법이 가장 적합한 것으로 결정되었으며, 시행착오법에 의하여 기준치를 설정하였다. Sometimes the observed data is too small to discriminate it from noise of the instrument. Say, the data can be recorded as below DL(Detection Level) value. Even though the data below Detection Level(BDL) is small vague, it can be resulted in wrong estimates for mean and variance. However, in practice, the BDL data is generally eliminated as N.D. (Not Detected) and do not record it in Korea. This study investigates the distributions according to the data values of ammonia concentration (NH$_3$-N) in Puyeo intake. Also we try to find out DL value and an appropriate method for the estimations of mean and variance of BDL values that can be discriminate the distributions. The DL is estimated by trial and error method. The appropriate method for the estimations of mean and variance of above the detection level(ADL)and BDL dada sets is selected, and the mean and variance are estimated. As a result, it is found that the Bias Corrected Maximum Likelihood Estimator is the most accurate method for NH$_3$-N in Puyeo intake.
소뇌 혈관아세포종 전적출 후 천막상에 발생한 혈관아세포종 - 증 례 보 고 -
김형수,박세혁,조병문,김덕환,오세문,Kim, Hyung Soo,Park, Se-Hyuck,Cho, Byung Moon,Kim, Duck-Hwan,Oh, Sae-Moon 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.2
Hemangioblastoma is a benign tumor of vascular origin that develops usually in the posterior cranial fossa. We report a case of supratentorial leptomeningeal hemangioblastoma occurring in a 45-year-old man who received total removal of recurrent cerebellar hemangioblastoma four years ago. He was admitted for the evaluation of severe headache and magnetic resonance image showed a well-enhanced, extra-axial mass in the right parietal region. A presumptive diagnosis was meningioma. It was completely removed with the attached dura. Histological examination including immunohistochemical study showed typical findings of hemangioblastoma. It is emphasized that close observation may be necessary for hemangioblastoma, even after total removal.
김형수,이영대,이준용,Kim, Hyoung-Soo,Lee, Young-Dai,Lee, Jun-Yong 한국건설관리학회 2009 한국건설관리학회 논문집 Vol.10 No.5
조합이 시행하는 도시개발사업이 계속해서 증가하고 있음에도 불구하고, 각종 인허가과정의 중복, 관련법규정상제영향평가(환경, 재해, 교통 등)의 중복, 체비지(替費地) 매각, 도시개발사업에 대한 환경영향평가의 장기화에 의한 시공사의 부도 등 어려움이 많다. 본 연구에서는 도시개발사업에 관련되는 사업관련자(공공기관 설계 및 감리자 조합(조합원포함), 시공사)들을 중심으로 설문조사를 실시하여 사업진행상의 문제점들을 파악하고 계층분석(AHP)을 통하여 사업진행상 문제점개선요인들의 중요도를 분석하고 환지방식에 의한 도시개발사업의 효율적인 토지이용을 도모하기 위한 활성화방안을 제시하였다. 설문조사를 통하여 35개의 문제점개선변수(PIF-problem improvement factor)를 추출하였으며, 이를 대상으로 요인분석 (factor loading 0.4 이하 1개 변수 삭제후 34개변수이용) 결과 도시개발사업의 활성화에 영향을 미치는제영향평가의 통합심의, 조합운영능력, 시공사수행능력, 기반시설부담금, 환지계획의 이해부족, 사업비조달능력, 사업주체 불명확, 조합의 전문성 결여, 민원해결 능력의 9가지 요인을 도출하였다.제영향평가의 통합심의(PIF1)가 도시개발사업의 활성화에 광범위하게 영향을 미치는 것으로 나타났으며, AHP분석결과 사업비조달능력(PIF6)의 가중치가 25.0%로 도시개발사업의 활성화를 위해서 가장 중요한 요인으로 나타났으며, 다음 사업주체의 불명확화(PIF7)가 1.8%로서 가중치가 가장 낮게 나타났다. 책임소제의 크기를 분석한 결과 PIF1(제영향평가의 통합심의)은 행정관청에 가장 중요한 책임이 있는 것으로 인식하지만 PIF2(조합운영능력)는 조합에게 PIF3(시공사 수행능력)는 시공사에게 PIF4(기반시설부담금)는 행정관청, PIF5(환지계획 이해부족)는조합과 컨설턴트 PIF6(사업비 조달능력)는 시공사에게 PIF7(사업주체 불명확)은 조합에게, PIF8(조합의 전문성)과 PIF9(민원해결 능력)은 조합에게 가장 큰 책임소재가 있는 것으로 나타났다. This research will focus on the public agencies, designers, supervisors, building cooperation, and contractor who involved in urban development plan. By understanding the complexity and the priorities in urban development process, all problems of the urban development projects can be solved or improved. These priorities are specified using AHP (Analytic Hierarchy Process). A questionnaire survey is employed to identify the problems of urban development process and the methods of revitalizing urban in this research. Through the survey, 35 issues are drawn out. Factor analysis technique is applied to extract the underlying interrelationships possibly existing. Using latent root criterion and varimax rotation method, 9 factors are extracted(by using 34 issues after deleting 1 issue less than 0.4 of factor loading) These 9 factors named as PIF (Problem Improvement Factor) consist of integration estimation (PIF1), cooperation operation capability (PIF2), contractor corporation capability (PIF3), capital for infrastructure investment (PIF4), misunderstanding of effective land use (PIF5), financial capability (PIF6), obscure goal of project (PIF7), shortage of cooperation expertise (PIFS), administrative procedures (PIF9). PIF 6 is the most important factor and PIF 1 is the most widely effective factor to succeed urban land development projects. It is recognized that administrative office is most responsible for PIF1 cooperation is most responsible for PIF2, 7, 8 and 9; contractors is most responsible for PIF3 and PIF6; administrative agencies is most responsible for PIF4; cooperation and consultants are responsible for PIF5. From findings in this study, some suggestions are proposed for the revitalization methods of urban development projects through the land readjustment method.