부산지역 일부 성인의 B형과 C형 간염의 유병률에 관한 연구

金埈淵,譚道溫,辛海林,鄭甲烈,金源述 동아대학교 부설 산업의학연구소 1997 산업의학연구소 논총 Vol.- No.3

This study was carried how much prevalent Hepatititis C virus(HCV) and hepatitis B virus(HBV) infection among adults in Pusan. Study subjects(1,806) were examinee to take a multyiphasic health examination at a University hospital from July 1992 to June 1994. Serums were collected for tesr of anti-HCV, HBsAg and HBsAg, the level of SGOT, SGPT, r-GT, and stool examination was tested for clonorchiasis. All of the subjects were interviewd with the questionnaire of blood transfusion history, past history and familial history of hepatitis. The overall prevalence rate of anti-HCV was 2.95%(95% CI:1.58∼4.28), especially high in dlderly group, and overall prevalence of HBsAg was 7.4%(95% CI7.3∼8.5). The positive rate of anti-HCV was not siginificantly different between positive group of HBsAg and negative group of HBsAg. The positive rate of anti-HCV in normal group that had values within normal range of SGOT, SGPT, r-GT and normal findings of abdominal ultrasonogram, was 1.55%((95% CI:0.46∼2.64). The truncated age adjusted positive rate of anti-HCV for the Pusan population was 3.03%(95% CI:2.99∼3.07). Therefore the positive rates of anti-HCV and HBsAg for adults in Pusan area were relatively high, they should be considered to implement adquate control of Hepatitis B and C virus infection and reinforcemint of health education.

장기계측에 의한 2MW급 풍력발전 타워구조물의 동특성 평가

김원술,이진학,이충기,김석현 한국복합신소재구조학회 2017 복합신소재구조학회 학술발표회 Vol.2017 No.04

This study investigates dynamic characteristics of a 2MW wind turbine structure by long-term response monitoring with accelerometers, tiltmeter and strain gauges. The object wind turbine structure is located in Jeju Island, Korea. The natural frequency and damping ratio were evaluated by least-square frequency domain decomposition and random decrement technique using acceleration response data. As a result, it was found that natural frequencies with 1st, 2nd and 3rd modes, and blade passing frequencies with 1P, 2P and 3P were clearly showed from power spectral densities of acceleration reponses. Furthermore, 1st model frequencies were almost constant with increase in standard deviations of acceleration responses. Another notable observation was that when standard deviations of acceleration responses were small, damping ratios showed to diverge. However, when standard deviations of acceleration responses had large values, damping ratios were converged to about 0.5%.

판별분석법을 이용한 관상동맥질환 고위험군의 예측

김성률,김기현,정갑열,김정만,박경일,김준연,이상주,김원술 동아대학교 부설 산업의학연구소 1995 산업의학연구소 논총 Vol.- No.2

The objective of this study is to predict the high risk group of coronary artery disease from body mass index, blood pressure, fasting blood sugar and serum lipids level using the method of discriminant analysis. Variables with significant difference between coronary artery disease group and normal group were HDS-C, LDL-C/HDL-C, LDL-C, and TG. But the acuity did not exceed 70% in any single variable. As the results of discriminant analysis, statistically significant discriminant variables were HDL-C, T-chol, FBS and TG. The discriminant equation was(Y) = -0.06759(HDL-C) + 0.01498(T-chol),+0.01923(FBS) - 0.01421(TG) + 0.5187, and the overall discriminant power using the above 4 variables was 79.3%

휴대용폐활량계를 이용한 한국인의 정상 폐기능 예측치와 관련요인에 관한 연구

김원술,김병권,김준연 東亞大學校 大學院 2002 大學院論文集 Vol.27 No.-

This study was carried out to determine the normal predictive values of pulmonary function and related factors in Korean adults using portable spirometer. Author measured the FVC, FEV_1, MMF, and surveyed body height, body weight, BMI ad smoking history. Study group was total 9,987 (male 5,775, female 4,212) who were sampled from periodic health check-ups at a hospital in Po-hang city. The results of this study were summarized as follow; 1. FVC in male and female was 4.27±0.52L and 3.11±0.52 L. FEV_1 in male and female was 3.62±0.49 L and 2.62±0.47 L. MMF in male and female was 4.01±0.51 L and 2.86±0.48 L, respectively. 2. In correlation analysis, FVC, FEV_1 and MMF showed positive correlation with body height and body weight, and negative correlation with age, BMI and smoking history (pack-years). 3. The prediction equation for FVC was 0.0418 × body height (㎝) + 0.0042 × age (years) - 0.0117 × smoking (pack-years) - 2.8918 in male, and 0.0863 × body height (㎝) - 0.0108 × age(years) - 10.3048 in female. 4. The prediction equation for FEV_1 was 0.0429 × body height (㎝) + 0.0068 × age (years) - 0.0133 × smoking (pack-years) - 3.65306 in male, and 0.0798 × body height (㎝) - 0.0083 × age(years) - 9.776 in female. 5. The prediction equation for MMF was 0.0437 × body height (㎝) + 0.0054 × age (years) - 0.0137 × smoking (pack-years) - 2.9812 in male, and 0.0840 × body height (㎝) - 0.0093 × age(years) - 10.1732 in female.

부산지역 일부 성인의 B형과 C형 간염의 유병률에 관한 연구

김원술,담도온,신해림,정갑열,김준연 釜山醫師會 1995 釜山醫師會誌 Vol.31 No.5

도시 생태공원의 풍환경 평가 적용에 관한 고찰

김원술,정일원,권지혜 한국습지학회 2019 한국습지학회지 Vol.21 No.5

City parks play an important role in reducing the air pollution and mitigating the city heat island effect caused by global warming. However, from July 2020, restricted parks over 20-year will be partially lifted due to sunset regulation on parks. As a result, the government and local governments have been making efforts to revitalize parks, such as creating ecological parks and securing park sites. However, building winds generated by high-rise buildings constructed around ecological parks in the city may cause discomfort to pedestrians and threaten the ecosystems of plants and animal that live in ecological parks. There are no clearly proposed as standards for wind environment assessment in Korea, but also it has been rarely studied on pedestrian wind environment. In this study, wind environment studies have been reviewed to find the important parameters related to wind environment assessment. Further, wind climate analysis using wind data obtained by Seoul meterological station was performed to examine the possibility of applicability of the wind environment assessment on the city ecological parks. 도시공원은 지구온난화와 대기오염을 줄여주고 열섬현상을 완화시켜주는 중추적인 역학을 하고 있다. 그러나 도시공원 일몰제에 따른 2020년 7월 이후 도시공원 제한이 일부 해제될 예정이다. 이에 따라 정부와 지자체는 공원부지 확보와 더불어 생태공원 조성 등 공원 활성화를 위한 노력을 기울이고 있다. 그러나 도시공원 주변에 건설되고 있는 고층건축물에 의해 발생하는 빌딩풍은 보행자에게 불쾌감을 유발할 수 있고, 생태공원에 서식하고 있는 동·식물의 생태계를 위협할 수 있다. 우리나라의 풍환경 평가에 대한 기준은 명확하게 제안된 바가 없으며, 관련 연구 또한 찾아보기 힘들다. 따라서 본 논문에서는 국외풍환경 평가기준 및 관련 연구를 검토하여, 풍환경 평가 기준의 중요 인자를 도출하고, 국내 기상관측자료를 이용한 풍환경평가에 적용 가능성을 검토하였다.

개인 소음폭로량과 청력손실에 관한 추적조사

김원술,홍영습,김양석,이상주,박경일,정갑열,김준연,Kim, Won-Sool,Hong, Young-Seoub,Kim, Yang-Seak,Lee, Sang-Ju,Park, Kyung-Il,Jung, Kap-Yull,Kim, Joon-Youn 대한예방의학회 1994 Journal of Preventive Medicine and Public Health Vol.27 No.2

For the purpose of presenting the basic data for the establishment of control measures on the long-term noise exposed workers, this study was carried out on the relationship between personal noise exposed dose and hearing loss on the 67 male workers whose hearing threshold had exceeded 40 dB in 4,000 Hz, from 1990 to 1992. Conclusively, the level of hearing loss was significantly related to personal noise exposed dose in follow-up period. We considered that personal noise exposed dose which was measured by the personal noise dosemeter was more efficient rather than the noise level of workplace for the evaluating the long-term change of hearing acuity. And although in the case of not-diagnosed as noise induced hearing loss. it was suspected that the active control programs such as improvement of noisy environment or early transfer to proper workplace were needed on the workers who exposed with over 90 dB in personal noise exposed dose.

풍력발전 타워 구조 건전성 모니터링 기술의 소개

김원술 한국구조물진단유지관리학회 2016 한국구조물진단유지관리공학회지 Vol.20 No.3

나선형 초고층건물의 공력불안정 진동과 공력감쇠에 관한 연구

김원술,아키히토 요시다,타무라 유키오,이진학,Kim, Wonsul,Yoshida, Akihito,Tamura, Yukio,Yi, Jin-Hak 한국전산구조공학회 2016 한국전산구조공학회논문집 Vol.29 No.1

본 논문에서는 변위응답 및 가속도 응답의 저감 효과에 있어서, 유리한 형상인 $180^{\circ}$ 나선형(Helical $180^{\circ}$) 초고층건물을 대상으로 풍진동실험을 수행하여 나선형 초고층건물의 공력불안정 진동 특성 및 공력감쇠 특성을 조사하였고, 정방형 초고층건물의 결과와 비교분석 하였다. 본 연구에서의 공력감쇠율은 RD법(random decrement technique)을 이용하여 평가하였다. RD법에 의해 평가된 공력감쇠율은 기존문헌 및 준정상가정이론 결과와 비교 검증하였다. 실험결과, 공력진동 실험결과 $180^{\circ}$ 나선형모형의 풍직각방향에 대한 공력불안정 진동은 발생하지 않는 것이 확인되었다. 정방형과 $180^{\circ}$ 나선형 형상에 대한 공력감쇠율을 살펴보면, X방향에 대한 공력감쇠율은 무차원 풍속이 증가와 비례하여 점진적으로 증가하는 경향이 나타났다. 반면, Y방향에 대한 공력감쇠율은 정방형모형과 매우 다른 양상이 나타나는 것을 알 수 있었다. In this paper, aeroelastic instability and aerodynamic damping ratio of a helical $180^{\circ}$ model which shows better aerodynamic behavior in both along-wind and crosswind responses on a super tall building was investigated by an aeroelastic model test, and the aerodynamic damping ratio was evaluated from the wind-induced responses of the model by using Random Decrement Technique. Aerodynamic damping ratios evaluated in this study were verified through comparison with previous results obtained by quasi-steady theory. As a result, the aeroelastic instability of the helical $180^{\circ}$ model in crosswind direction were not occurred for any conditions with increasing the reduced wind velocity while the square model generally encounters aeroinstability due to the vortex shedding. The aerodynamic damping in along-wind direction for the helical $180^{\circ}$ and the square model increased monotonically both with reduced wind velocity, i.e., there is no relation with modifications of building shapes. On the other hand, in crosswind direction, the characteristics of aerodynamic damping ratio with reduced wind velocity for helical $180^{\circ}$ model were quit different from those of the square model.

검진프로세스의 개선으로 업무효율 향상

김원술,황혜숙,박미란,견미경,김선희,김영희,박순화,문혜향,김연선,이인혜,최태성 한국의료QA학회 2009 가을학술대회 Vol.2009 No.3