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MCV와 RDW를 이용한 복합유기용제 취급 근로자의 빈혈 유형에 관한 조사
김성준,엄상화,김대환,이채언,전진호,김성천,배기택,박형종,Kim, S.J.,Ohm, S.H.,Kim, D.H.,Lee, C.U.,Chun, J.H.,Kim, S.C.,Pae, K.T.,Park, H.J. 대한예방의학회 1992 예방의학회지 Vol.25 No.2
The hematologic effect by low-concentration and repeated exposure to mixed organic solvent remains obscure. This study was performed to evaluate the hematologic effect by mixed organic solvent exposure, especially on the type of anemia by mean corpuscular volume(MCV) and red blood cell distribution width(RDW). The subject were 64 organic solvent workers(male 4, female 60) and 78 general workers(male 18, female 60) who showed anemic tendency in worker's health examination which carried out by Pusan Paik Hospital from January to December, 1988. The author gained some hematologic findings(hemoglobin, hematocrit, RBC, WBC, MCV, MCHC, platelet count, ESR, RDW) from auto-analysis method by coulter counter S plus IV, and compared the type of anemia by MCV and RDW. In the pilot study for estimating the prevalence of anemia according to the type of b, the prevalence rate was higher in organic solvent workers than in public officials as 10.9% and 4.1% respectively. There were statistical significance in the value of hemoglobin, hematocrit, MCV, MCHC, platelet count, ESR, RDW between the two study groups with more severe anemic tendency in organic solvent workers. The type of anemia in organic solvent workers was microcytic and anisocytic with the mean value of $68.28{\pm}8.3fL$ of MCV and $19.1{\pm}4.0%$ of RDW.
고체-고체-기체 화학 열펌프 시스템의 반응기 설계에 관한 연구
김성준,이태희,최홍규,이종호,Kim, S.J.,Lee, T.H.,Neveu, P.,Choi, H.K.,Lee, J.H. 대한설비공학회 1994 설비공학 논문집 Vol.6 No.4
In this study the reactor design procedure and method of solid-solid-gas chemical heat pump system using STELF technology were investigated. For manufacturing IMPEX block which is the kernel of reactor, proper salt pair should be selected, and equilibrium temperature drop and COP should be examined for selected salt pair. Moreover, apparent density, residual porosity, and graphite ratio should be calculated to give minimum block volume and mass, and maximum energy density without causing heat and mass transfer problems. Since heat exchange area can be changed with operating condition, reactor diameter, length, and stainless steel thickness should be decided for desired specifications. These procedure and method were applied to the case study of 6kW cold production and 8 hours storage capacity reactor.
김성준,오광준,Kim, S.J.,Oh, Kwang-Jun 대한관절경학회 2010 대한관절경학회지 Vol.14 No.2
고관절경을 시행하는 집도의사는 관절경을 통해 관찰되는 정상 고관절의 해부학적 구조물에 대한 정확한 지식과 삽입구 위치에 대한 숙지를 통해 환자의 증상과 비정상 관절경 소견을 임상적으로 연관 시키는 것이 중요하며, 적절한 환자의 선택과 고관절경의 술기에 대한 항상성을 유지할 수 있어야 최소 침습적인 술기의 장점을 가지고 있는 고관절경의 만족할 만한 치료 결과를 기대할 수 있다.
복합 유기용제 취급 근로자의 혈액 및 뇨검사 결과 분석
정귀원,김대환,엄상화,김성준,김정호,문선순,전진호,김용완,Jeong, K.W.,Kim, D.H.,Ohm, S.H.,Kim, S.J.,Kim, J.H.,Moon, S.S.,Chun, J.H.,Kim, Y.W. 대한예방의학회 1991 Journal of Preventive Medicine and Public Health Vol.24 No.3
To evaluate the effects on health by exposure to mixed organic solvents, the author analyzed some labortory findings of blood (hemoglobin, hematocrit RBC, WBC, SGOT, SGPT) and urine (protein, blood, sugar) that were obtained from 722 workers (male:446, female:276) who worked in plywood, painting and shoes factories in Pusan area from January to December, 1990. The result were as follows ; 1. The mean values of each hematologic findings were all within normal limit but there were significant differences at hematocrit, RBC, WBC, SGOT in male and at WBC, SGPT in female at the comparison of the mean values and the distribution according to the normal criteria by type of work. 2. There were no differences in urinalysis(protein, blood, sugar) by type of work. 3. In stepwise multiple regression, analysis of hematologic findings on age, working duration and type of work, regression coefficients on age and type of work were relatively high in male and female sub1, respectively. As a result of this study, it is considered that the measurement of WBC with morphology is significant in hematologic findings and instead of spot urine and urinstix, 24 hours urine and quantitative analysis is required in urinalysis in screening test for healthy status of workers who deal with the organic solvents.
김성준(S.J.Kim),류태우(T.U.Yu),김세원(S.W.Kim) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_2
Monolithic three-way catalysts were aged with different mileages on an engine dynamometer. These catalysts were subsequently evaluated on an engine dynamometer to examine the effects of air/fuel ratio set point, temperature, and air/fuel ratio amplitude and frequency on the conversion efficiencies for NOx, CO, and HC. For this test, dual oxygen sensor method, which utilizes a comparison. between an upstream oxygen sensor and oxygen sensor placed downstream of the catalyst. is used under steady state operating conditions. It is found that the amplitude and frequency of air/fuel ratio closed-loop control system affects the NOx. CO, and HC conversion efficiencies greatly. In this study, a new parameter which can be used as a measure of catalyst performance is proposed, and it is found that this parameter qualitatively matches well with the HC conversion efficiency of catalyst.<br/>