응급실에 내원한 약물중독환자의 지역별 비교분석

임근우,박일영,유승진,나병호,오동렬,전해명,황주일,김세경 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

We reviewed retrospectively 230 patients who came to emergency room of Kang Nam St. Mary's Hospital and Uijongbu St. Mary's Hospital between 1. January and 31. December 1994. We classified them according to their age, sex, a sort of drug, the cause of poisoning, prehospital care, time-lapse to arrive at hospital after poisoning, psychiatric problem the status of patients. *We conclude as follows; 1. The male to female ratio was totally 1 : 1.98, 1 : 1.24 in a urban area, 1 : 2.43 in a rural area. 2. On age of the patients in this study, the peake incidence was between 20 and 39(55.2%). 3. On seasonal prevalence, the poisoning was most common in summer and spring, in urban area(35.7%) and rural area(37.0%) respectively. 4. The common drug were as follow; Doxylamine, Organophosphate, Acetaminophen in urban area, Paraquat, Organophospate, Doxylamine in rural area 5. The percentage of suicidal attempt were 81.8% and 87.7% in urban area and rural area respectively. 6. The poisoning patients had psychatric problem in 19.4% and 24.6%, in urban area and rural area respectively. 7. Before arrival to emergency room, 27.7% of patient was done prehospital care in rural area. 8. On arrival to emergency room, 95.1% and 73.8% of patients show stable vital sign in urban area and rural area respectively.

급성하벽심근경색에서 전흉부유도 ST절 하강의 의의

정병천,배호상,곽동훈,김영태,배용학,황종현,임현주,류재근,조용근,채성철,전재은,박의현 慶北大學校 醫科大學 1997 慶北醫大誌 Vol.38 No.2

목적 : 급성하벽심근경색증 환자에서 심전도상 흔히 동반되는 전흉부유도 ST절 하강의 의의를 알아보았다. 방법 : 심근경색후 24시간에서 48시간에 얻은 심전도를 기준으로 52명의 급성하벽심근경색증 환자를 전흉부유도에서 ST절의 하강이 있는 군과 없는 군으로 나누었으며 심도자, 관상동맥조영술, 심초음파도 및 방사성 핵종을 이용한 좌심구혈율 측정 등을 시행하였다. 결과 : 1) 좌심실확장기말압은 전흉부유도에서 ST절의 하강이 있는 경우에서 16.9±5.33mmHg로 없는 경우의 11.0±4.02mmHg보다 유의하게 높았다(p<0.05). 그러나 운동량 및 좌심구혈을은 흥부 유도상 ST절의 하강이 있는 경우 7.6±3.0 METs 및 53.9±9.1%로 없는 경우의 9.1±2.7 METs 및 54.6±9.5%보다 낮았으나 통계적 유의성은 없었다(p=0.180, p=0.823). 2) 관상동맥조영술상 전흉부 ST절의 하강이 동반된 군에서는 유의한 좌전하행지나 좌회선지의 협착이 있는 경우가 60.9% 및 57.9%로 ST절의 하강이 없는 군에서의 34.5% 및 7.7%와 비교해 좌관상동맥에 협착이 동반된 경우가 많았다(p=0.050, p=0.001). 3) 관상동맥조영술상 세 혈관질환의 빈도는 흉부유도상 ST절의 하강을 보인 23예에서 10예로 ST절 하강이 없었던 29예중 2예에 비하여 유의하게 많았고(P=0.007), 단 혈관질환의 빈도는 ST절의 하강을 보인 군에서 23예중 5예로 ST절 하강이 없었던 29예중 17예에 비하여 유의하게 적었다(P=0.002). 두 혈관질환의 경우에는 각각 8예와 10예로 양군간에 유의한 차이가 없었다. 4) 흉부유도상 ST절 하강의 빈도는 단 혈관질환 22예 중 5예에서, 두 혈관질환 18예중 8예, 세 혈관질환 12예 중 10예에서 관찰되어 협착이 있는 관상동맥의 수가 많을수록 ST절의 하강이 나타나는 빈도가 많음을 보였다(p=0.00308). 그러나 흉부유도상 나타난 ST절의 하강을 모두 합하여 구한 ST절 하강의 합은 협착이 있는 관상동맥의 수와 통계적인 유의성이 없었다. 5) 심초음파도상 좌심실 하벽의 벽운동은 ST절 하강을 보인 군에서는 akinesia가 83.3%, hypokinesia가 11.1%, 정상 벽운동이 5.6%로, ST절 하강이 없었던 군에서의 dyskinesia가 3.6%, akinesia가 39.3%, hypokinesia가 25.0%, 정상 벽운동이 32.1%와 비교하여 ST절의 하강이 있는 군에서 유의하게 벽운동의 장애가 빈번함을 보였다(p=0.03891). 그러나 좌심실전벽, 측벽 및 중격부위에서는 유의한 벽운동의 차이가 없었다. 결론 : 급성하벽심근경색증 환자의 전흉부유도에서 ST절의 하강이 동반되는 경우 다혈관 질환의 가능성이 높으며 좌심실확장기말압이 상승되었고 운동능력은 감소되어 있었다. 또한 심초음파도상 좌심실하벽의 벽운동장애도 심하였다. 따라서 전흉부 ST절의 하강을 동반한 급성하벽심근경색증 환자는 전흉부유도에 ST절 하강이 없는 경우보다 예후가 불량할 것으로 생각되며, 보다 적극적인 치료가 필요할 것으로 생각된다. The purpose of this study was to determine the significance of precordial ST segment depression appearing during acute inferior myocardial infarction and to assess the correlation of that with angiographic finding. 52 patients were allocated into two groups based on the existence of precordial ST segment depression : 23 patients with ST segment depression and 29 patients without ST segment depression. The extent of coronary artery disease as well as the prevalence of significant stenosis (≥70%) in left anterior descending artery were more frequent in patients showing precordial ST segment depression than in patients not showing them (p=0.050) and the result were similar in cases of left circumplex artery (p=0.001). On echocrdiographic examination of left ventricular (LV) wall motion, it showed more severely decreased inferior LV wall motion in patients showing precordial ST segment depression than in patients not showing them (p=0.03891) even though the other segment of LV wall motion didn't show the statistical difference between both groups. The other cardiac parameters such as LVEDP, exercise amount (METs) and ejection fraction were tend to showing bad profile in patients with precordial ST segment depression. From the above results, we could deduce that patients with precordial ST segment depression have relatively large infarction or concomitant left coronary artery disease, so they need more caution and intensive theraphy.

아파트 單位平面의 住居規模 適正化를 위한 基礎모델에 관한 硏究 : 釜山市 國民住宅規模 아파트를 中心으로 With a National Housing-size Apartment in Pusan

송대호,정성규,박춘근 동아대학교 건설기술연구소 1996 硏究報告 Vol.20 No.1

This study is purposed to propose the basic model for calculation of the proper dwelling size, which is suitable to the conscious structure and form of the dwelling life of Korean, in planning the unit plan with a national housing-size apartment after this. It limits the factors which effect the dwelling size(Y) to general household characteristic of dweller and the activity of dwelling life. It clears the formula by regression model in the relation between these factors and dwelling size(Y). The results is follows ; 1) Y(X_(8)) = 1.55397(FF2)+1.08807(FF3)+0.62683(FF1)+18.89860, estimate ability of this formula comes into 23.6%. 2) Y(X_(8)) =0.99396(BB1)+0.43160(BB3)+0.33118(BB2)+0.34311, estimate ability of this formula comes into 28.5%. This study tries estimating the dwelling size(Y) not by the degree of satisfaction, but the aquirement marks of the exclusive dwelling-ratio in part. But the study is elementary in estimating the dwelling size(Y) and vary estimations are expected in the method of study. Thus the study is necessary to be achieved lastingly in the propriety of interpretation the value of dweller's degree of satisfaction.

老朽아파트 再建築에 따른 住居環境評價에 관한 硏究

송대호,박춘근 東亞大學校 建設技術硏究所 1997 硏究論文集 Vol.21 No.1

This study is related to the rational improvement plan according to the dwelling environment estimation factors when deteriorated apartment complexes is reconstructed. The results is follows : (1) External environment in this deteriorated apartment complexes is proved generally very bad condition with physical worn out condition of the building. Especially, it is proved that parking lot and green space, dust facilities, etc are lacked commonly. (2) When we synthesize the recognition degree to the dwelling environment. It made an analysis that dwellers have been estimate the most factors at the green space and physical facilities or deterioration of the building and EV-stairway, dwellers' demands are changing to apartment complexes environment from the investment worth concept at house basis in the past. (3) As reconstructed, in preference on improvement of deteriorated apartment complex, It values middle story type above ratio of capacity increase in higher story type and higher density type. And Unit residence has to connect a green tract of land and open space. Also convenient facilities has to expand. Finally, there is limit that estimate basic factors about dwelling environment established inclusively in this study, unsatisfying with exactly the solve of cause in the factors. So, it is required that the study (which can receive variety changing factors) is continuing for accumulating this estimation data.

대장직장종양에 있어서 Hand-Assisted Laparoscopic Surgery (HALS)의 초기 경험

조호영,최선근,구지회,허윤석,이건영,김세중,조영업,안승익,홍기천,신석환,김경래,우제홍 대한내시경복강경외과학회 2003 대한내시경복강경외과학회지 Vol.6 No.-

아파트 단위평면의 구성면적변화에 따른 거주후 평가(POE)에 관한 연구

송대호,장승재,박춘근 동아대학교 공과대학 부설 한국자원개발연구소 1995 硏究報告 Vol.19 No.2

The study is presented the model by Stepwise Multiple Regression Analysis, practiced Post Occupancy Evaluation with factor which is to be considered for the change of constituent area after grasping change of constituent area. Apartment unit plan composition is classified in private space, public space, supporting space. The results are as follows: Total constituent area ratio of the existing plan was 39.5 : 40.8 : 19.7 and dwelling consciousness one was 36.4 : 44.0 : 19.6. Compared private space with public space, public area requested increase rather than private area. The Multiple Regression formula between each factor and the constituent area is represented to by HY(Cl)=0.3118+0.52483(C2)+0.28383)C3)+0.10922(C6), but estimate ability of this formula comes into 53.3%.

1989-2000년의 5, 12세 한국아동의 치아우식실태에 관한 조사연구

이춘희,최충호,권호근 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.1

The objective of this study was to analize the change of dental caries prevalence in Korean children and adolescents from 1989 to 2000. National oral examination survey reports in 1989,1991,1995 and 2000 were collected for this purpose The major finding were summerized and the results were as follows : 1. The dft of 5-year-old children in creased from 1989 to 1995 and decreased slightly from 1995 to 2000 the dt decreased or remained constant and the ft increased. 2. The dt of 5-year-olds decreased constantly by 1991 in rural area but in urban area, it remained stable by 1991 and the ft increased in rural and urban area. 3. The DMFT of 12-year-old children increased from 1989 to 2000 the DT decreased of remanined constant and the FT increased, the MT remained below 0.05 4. The DT index of 12-year-olds decreased constantly by 1991 in rural area but in urban area, it remained stable by 1991 and FT index increased in rural and urban area 5. The percentage of caries free and caries experience have increased in rural and urban area. According to results the dft of 5-year-olds and the DMFT of 12-year-olds have increased specially among the component of dft and DMFT dt and DT decreased or remain stable while ft and FT increased constantly which means that the restorative index(ft/dft, FT/DMFT) increased also and the percentage of caries experience increased. Based on this study, preventive approach is more required to lower caries prevalence of korean childeren

老朽아파트 再建築에 따른 住居環境評價에 관한 硏究

송대호,박춘근 동아대학교 건설기술연구소 1997 硏究報告 Vol.21 No.1

This study is related to the rational improvement plan according to the dwelling environment estimation factors when detoriorated apartment complexes is reconstructed. The results is follows: (1) External environment in this detoriorated apartment complexes is proved generally very bad condition with physical wornout condition of the building. Especially, it is proved that parking lot and green space, dust facilities, etc are lacked commonly. (2) When we synthesize the recognition degree to the dwelling environment. it made an analysis that dwellers have been estimate the most factors at the green space and physical facilities or deterioration of the building and EV·stairway, dwellers' demands are changing to apartment complexes environment from the investment worth concept at house basis in the past. (3) As reconstructed, In preference on improvement of deteriorated apartment complex, It values middle story type above ratio of capacity increase in higher story type and higher density type. And Unit residence has to connect a green tract of land and open space. Also Convenient facilities has to expand. Finally, there is limit that estimate basic factors about dwelling environment established inclusively in this study, unsatisfying with exactly the solve of cause in the factors. So, it is required that the study (which can receive variety changing factors) is continuing for Oaccumulating this estimation data.

구조물의 정적보강에 따른 동적 응답 예측에 관한 연구

김강부,전종균,엄호성 선문대학교 2000 공학계열 논총 Vol.3 No.-

본 논문에서는 기존 반도체 공장의 세품 정밀도를 개선하기 위한 방안으로 정적보강올 실시하는 구조물에 대하여 동적 응답 을 실험적인 방법과 해석적 방법을 병행하여 예측하였다. 또한, 실험적인 방법과 해석적 방법의 상호적용을 위하여 진동제어 절차서를 제시하였다. 동특성 실험을 통하여 구조물의 지배 모드를 확인 하고, 모델해석과 비교하였다. 해석결과에서는 구조보강 前/後에 대하여 동일한 모드형상을 갖는 고유진동수를 4차까지 선정하여 강성 증가에 따른 변화를 비교하였다. 또한, 정적보강 前/後 구조물의 동적 특성을 비교하기 위하여 격자보 구조물에서 가장 취약할 것으로 판단되는 지점을 가진점으로 선정하여 주파수별 단위 하중에 대한 응답특성을 계산하였다. 실험/해석결과를 바탕으로 구조물의 정적보강을 통한 동적 응답의 기여도를 확인하였다. In this paper, dynamic response about the static stiffening reinforcement of structure by the experimental method and theoretical analysis has been predicted for the improvement of accuracy in the manufacturing process of semiconductor factory. Also, vibration control procedure is presented by the mutual working of the experimental method and theoretical analysis. Dominant vibration mode of the structure has been investigated by the experiments for the dynamic characteristics and compared with the model analysis of the structure. The change due to the increase of stiffening about the same mode shape for the four natural frequencies is investigated after(and before) the reinforcement of structure stiffness. Response characteristic about the weight at each band of frequency has been calculated at the exciting points in which the lattice-type structure has weakness mostly. The effect of dynamic response of the structure with reinforced static stiffness through the experimental and theoretical results is verified.

선택적 레이저 소결법을 이용한 기어박스의 정밀주조기술 개발

최상련,김천기,박근,오철호 韓國工作機械學會 2000 한국생산제조학회지 Vol.9 No.1

In this paper, rapid prototyping and precision castiong technology have been devloped for the manufacturing of inlet pear box of an airplane. Rapid prototyping is a new prototyping technology that produces complicated parts directly from threedimensional CAD data with a high efficiency, and has been extensively applied to various manufacturing processes. In the present work, Selective Laser Sintering(SLS) system is untilized in order to manufature prototype of the inlet gear box. Prototyping technology using SLS is also investigated from the viewpoint of accuracy. Using the SLS master, the casting products are manufactured through several processes such as: vacuum casting, lost wax shell casting and investment cast-ing. The shrinkage characteristics of wax and cast iron in the casting procedures are considered, and then reflected to the design procedure so that the accuracy of the product in improved consequently.