고효율 폐페인트의 재활용 기술 개발

정재헌,김정수,김종민,김영한,이상록,장상목 동아대학교 공과대학부설 생산기술연구소 1997 生産技術硏究所硏究論文集 Vol.2 No.1

In this study, the equipment and method to recyle waste-paint, were developed and investigated. The efficiency of drying and pulverizing the waste-paint were improved via vescosity reducing process and microwave energy source with a blast of hot air. This method may be useful to recyle the waste-paint, rubber and plastics.

폐페인트 재활용공정 및 장치개발 연구

정재헌,한대상,조창제,이종무,장상목 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.2

In this study, the process and equipment to recycle wastepaint were designed and development. The characteristic of this recycling process is to improve the recycling efficiency by dividing the previous recycling process into two processes, liquid-phase process and powder-phase process, with the hardness of wastepaint. As the result of this study, we confirm that this process may be helpful to recycle wastepaint.

하계 집중 호우에 따른 강화도 갯벌 퇴적물 내 공극수 성분 변화

목진숙,김성한,조혜연,현정호 한양대학교 이학기술연구소 2007 이학기술논문지 Vol.10 No.-

2007년 7월 10일부터 8월 9일까지 강화도 남단 동검리 갯벌에서 표층 퇴적물 6 cm 이내 화학 성분(CO₂, NH₄^(+), Fe^(2+), SO₄^(2-), HS^(-))의 농도를 측정하였다. 조사 기간 동안 세 차례의 태풍(EWINIAR, BILIS, KAEMI)과 폭우 (110∼202.5 mm)가 있었다. 그로 인해 염분은 7∼21 psu(practical salinity units)의 범위를 보였고, CO₂, NH₄^(+), Fe^(2+), SO₄^(2-), HS^(-)의 농도는 각각 84∼159, 5.52∼16.46, 3.56∼9.69, 160∼461, 0.58∼0.99 mmol m^(-2)의 범위로 나타났으며, 전반적으로 폭우 이후 급격히 감소한 후 다시 회복되는 경향을 보였다. 이러한 결과는 폭우 이후 담수 유입 증가에 따른 희석 효과를 반영하고 있을 뿐만 아니라, 물리적 교란에 의해 혐기성 상태의 분해 산물이 재산화 됨으로써 퇴적물 내 혐기성 조건이 완화되었음을 의미한다. 본 연구 결과는 향후 기상이변에 따른 집중호우가 갯벌 내 생지화학적 과정에 큰 영향을 미칠 수 있음을 지시해 준다. Concentrations of pore water constituents CO₂, NH₄^(+), Fe^(2+), SO₄^(2-), HS^(-) within top 6 cm sediment were measured from 10 July to 9 August 2007 at Donggeom intertidal mudflat of the south Ganghwa in Korea. There was a typhoon (EWINIAR, BILIS, KAEMI) and heavy rainfall (110∼02.5 mm) of three times during the period. Therefore salinity ranged from 7 to 21 psu concentrations of CO₂, NH₄^(+), Fe^(2+), SO₄^(2-), HS^(-) ranged 84∼159 , 5.52∼16.46, 3.56∼9.69, 160∼461 0.58∼0.99 mmol m^(-2), respectively, and constituents were steeply decreased after heavy rainfall and recovered again. These results reflected the dilution effect by the increasing of freshwater discharge after heavy rainfall and implied that physical disturbance led to less anoxic conditions in the sediment by reoxidizing the anoxic decomposition products. This results also implied that the short-term heavy rainfall may have a profound impact on the sediment biogeochemistry.

여성회관 이용행태 및 공간계획에 관한 연구 : 경기지역을 중심으로 Focused on Gyeonggi Area

유진상,정성문,이학규,오상목 국립7개대학공동논문집간행위원회 2005 공업기술연구 Vol.5 No.-

In the contemporary society, the main purpose of women hall to be changed. The programs should be established and operated to provide an opportunity for social education and welfare for women. Also, it is necessary to provide family-unit programs. Therefore, the purpose of this study is to present an direction for constructional plans for the women hall, which are now under way without much consideration. For this, the author analyzed the current status of women halls and their related offices located in the small and medium sized cities in Kyungi-do area, and then provided a direction for the future plans including the realities of usage and plans of unit space, such as the size, user characteristics, operational status.

Weight Training과 Circuit Weight Training이 심폐기능 및 혈중젖산농도에 미치는 영향

김정주,이상목,이재문 경희대학교 체육과학연구소 2000 體育學論文集 Vol.28 No.-

The purpose of this study was to investigate the effects of Weight Training(WT) and Circuit Weight Training(CWT). 16 physical education students of K university were selected as subjects and then divided into two groups; The weight training group with 8 students, the circuit weight taining group with 8 students to evaluate the change of cardiovascular function and blood lactate were comparison and analysis. Weight training program was selected at 75% of IRM during ninety minutes per day of three times a week for the period of 6 weeks, circuit weight training program was selected at 50% of IRM during 3 sets per day at three times a week for the period of 6 weeks. The following results were obtained from this study. 1.The Change of Cardiovascular Function in Training Period Significant change was increased in the Vemax in CWT, and significant change was increased in the rest HR and VO2max/kg in both group. 2.The Change of Blood Lactate in Training Period Non-significant change was in the blood lactate with all-out time, but significant change was decreased with recovery 20 minutes in both groups.

에틸렌 염회비닐 공중합체의 열분해 특성연구

황택성,서정목,맹기석,송해영 忠南大學校 産業技術硏究所 1987 산업기술연구논문집 Vol.2 No.2

PVC has been developed very rapidly as one of general useful resins, and many scientists have studied complimentary method for thermal stability to improve the disadventages of PVC. This study investigated to promote thermal stability by a VC-Ethylene copolymer synthesis of copolymer syntheses. The effect of the thermal stability was studies with different portion of Ethylene-VC copolymer. As the result, when ethylene copolymer was introduced, the thermal stability was promoted. So this report described the process and the result for such analysis.

재활용 폐페인트를 이용한 방청페인트 개발연구

한대상,정재헌,조홍식,조창제,이종무,장상목 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.2

In this study, The method to produce anticorrosive paint using reproductive wastepaint was investigated. The liquid-phase resin, BHO-500 and powder-phase paint BHO-300 were produced through wastepaint reproductive process. BHO-500 and BHO-300 could be replaced respectively polyvinylchloride resin and filler, which are thr components of anticorrosive paint. The properties of the anticorrosive paint produced through this process were excellent in comparison with the existing anticorrosive paint.

지식클러스터 주체로서의 기술관련 대학연구소 및 협력기업 성과분석

임정덕,강상목,백충기 한국경상학회, 한국국민경제학회 2006 경제연구 Vol.24 No.1

백서의 복강내에 투여한 Mitomycin-C-Polyglycolic acid 제형이 장기에 미치는 영향에 관한 연구

송규상,강대영,최정목,노승무,정경수,오정연,김진향,양준목,최선웅,이진호,조준식,민병무,김용백,김창식,박근성,김승영,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

To evaluate the in-vivo effects of mitomycin-C-polyglycolic acid composite(MMC-PGA) the disk: shaped composite were implanted into the peritoneal cavity of the Sprague-Dawley rats. The pathologic changes were examined at various time points up to 12 weeks. Initially the soft tissue around the inserted disks showed capillary congestion at 3 days. Inflammatory infiltrates with foreign body giant cells appeared from the 2nd week and reached peak response at 6-8 weeks. These reaction diminished prominently at 12 weeks. No specific pathologic change was found in the liver, the kidneys, and the heart. The above results suggest that the MMC-PGA composite can serve as a new device for intraperitoneal chemotherapy of various types of cancers.

모 제약회사 근로자들의 직업성 천식 유병률과 약제 분말 노출수준

오성수,최용휴,김은아,이영목,장재길,유장진,박승현,김태균,정수영,김규상,강성규 大韓産業醫學會 2006 대한직업환경의학회지 Vol.18 No.2

목적: 제약회사에서 직업상 천식의 유병 규모를 파악하고 작업공정에 대한 작업환경 측정을 통해 제약회사의 약제 분말에 대한 노출수준을 평가하고자 하였다. 방법: 제약회사에서 약제 분말에 노출되는 근로자를 대상으로 천식을 선별하기 위하여 설문조사 및 진찰, 혈액검사, 폐기능 검사 그리고 피부단자시험을 실시하였고, 각 부서별 공정에 따라서 총분진과 항생제 또는 효소제 분말에 대한 작업환경 측정을 실시하였다. 직업상 천식이 의심되는 근로자에 대하여 기관지과민성에 대한 검사(메타콜린을 이용한 비특이 기관지유발시험)와 약제 분말 기관지유발시험을 실시하여 확진하였다. 결과: 설문조사 및 진찰에서 작업 관련 천식 증상이 있는 근로자는 11명(34.4%)이었고, 약제 분말을 이용한 피부단자시험에서 1+ 이상 반응을 보인 근로자 10명(31.2%)이었다. 비특이 기관지유발시험 결과 8명(25.0%)이 양성(PC20 ≤16 mg/ml)이었다. 약제 분말 기관지유발시험을 통해 직업상 천식으로 확진된 근로자는 5명(15.6%)이었다. 작업환경 측정에서 원료를 충진하거나 투입하는 작업 그리고 정립작업에서 약제 분말에 대한 노출이 많았다. 결론: 제약회사에서 직업상 천식은 주로 제조공정 중 약제 분말에 노출된 근로자에서 발생하여, 증상 및 직업성 천식의 유병률이 높았다. 따라서 원료를 충진 또는 투입하는 작업과 정립작업 등 제조과적에서 약제 분말 노출을 줄이기 위한 세심한 주의가 필요하여, 약제 분말을 취급하는 근로자에 대해서는 천식 증상 조사뿐 아니라 정기적으로 피부단자시험, 비특이 기관지유발시험 등을 실시하여야 할 것이다. Objectives: After the investigation of one worker with occupational asthma, we surveyed the preva- lence of occupational asthma and the exposure level of pharmaceutical dust of 32 workers in a pharmaceutical company. Methods: Thirty-two of the 90 employees participated in the survey which consisted of questionnaire, blood sampling, spirometry and skin prick tests with 8 common allergens as well as 9 antibiotics and 2 enzymes. Various indices of the working environment were also measured. Subjects who had a symptom suggestive of work-related asthma or positive skin prick test were further investigated by PC20 methacholine. Nine subjects who had a PC20 result of 16 mg/ml or less (n=7) or had work-related symptoms and positive skin prick test (n=2) were referred to undergo a specific bronchial provocation test to phar- maceutical dust in an academic allergic disease center. Results: Eleven of 32 workers (34.4%) had a work-related symptom suggestive of occupational asthma. Ten (31.2%) showed positive skin prick test. 8 (25.0%) had a PC20 result of 16 mg/ml or less (indicative of significant bronchial hyperresponsiveness), and 5 (15.6%) had a positive result on the specific bronchial provocation test. Exposure levels of stuffing, input of raw materials and screening process were relatively high. Conclusions: This survey showed that pharmaceutical workers have an increased risk of occupational asthma. Although pharmaceutical factories maintain a relatively good working environment, careful control of respiratory tract exposures, especially during stuffing, input or raw materials and screening process, is important to prevent occupational asthma. Pharmaceutical workers need to undergo regular skin prick and methacholine bronchial provocation tests, as well as asthmatic symptom survey, to ensure the early detection and prevention of occupational asthma.