VDT작업별 정신사회적 스트레스와 근골격계 장애에 관한 연구

백남종,강종두,주영수,배인근,권호장,박종만,조수헌,김돈규,김재용,최홍렬 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.4

It has been hypothesized that jobs that have both high psychological demands and low decision latitude("job strain") can lead to musculoskeletal disorder. The objective of this study was to test whether job strain was correlated with the presence of work-related musculoskeletal disorder, especially myofascial pain syndrome(MPS). Information on demographic factors, confounders such as household load and taking care of children or not, and scores for decision latitude, job demand, and social support was obtained by self-administered questionnaire, which had been developed in Korean language, by adopting NIOSH instrument and Extended Karasek Model(16 items). All subjects were also examined by rehabilitation medicine specialists for musculoskeletal disorders. Subjects(n=370) could be categorized into 4 groups, these were, housewives(n=89), shipyard CAD workers(n=89), general female workers(n=79; nurses, insurance counselors, public officials, clerks, etc), and telephone directory assistance operators(n=113). Results from univariate analyses indicated that all demographic factors, all confounders, scores for decision latitude and social support were not associated with the risk of musculoskeletal disorder. However, score for job demand was higher in musculoskeletal disorder cases than others. In subgroup analysis, this association was convinced again, in telephone directory assistance operators. Job strain model showed that the group of telephone directory assistance operators was high-stain group, and OR of musculo skeletal disorder was 2.446(95% C. I. : 1.174, 5.096), when comparing this with the low strain group. In conclusion, job strain is a risk factor for work-related musculoskeletal disorder.

석유화학공장의 비상대응계획을 위한 정량적 위험성 평가

白腫培 충주대 산업과학기술연구소 2000 産業科學論文集 Vol.8 No.-

The Liquefied Petroleum Gas storage facility on OO Petrochemical Corporation is a hazardous facility causing huge disasters on the internal factory and neighbor residence. Because Liquefied Petroleum Gas has physical/chemical characteristics such as high flammability and explosion and a storage vessel in this factory stores more than 500 ton. So it is important that they know an accurately damage distance which they can expect when accidents occurred. In this research, we performed Quantitative Risk Assessment to Liquefied Petroleum Gas storage facilities on OO Petrochemical Corporation and proposed proper safety response plan. We use the method from the Guideline for Chemical Process Quantitative Risk Analysis(Center for Chemical Process Safety of the American Institute of Chemical Engineering) and the PHAST Professional from the DNV Technica. If BLEVE(Boiling Liquid Expanding Vapor Cloud) happens, the radiant heat is 4.0kw/m2 and damage distance is more than 1,910m, even though it depends on storage material such as propane, butane and propylene. So it can damage enormously to the total factory. An actual damage distance, though, may decrease fairly because of process equipments and lots of barrier effect such as buildings, woods, and contour (line) differences. In the case of cosmos area, it has serious potential risk due to VCE(Vapor Cloud Explosion), Pool fire, and Jet fire as well as BLEVE Therefor we proposed that they need a active safety management such as a systemically emergency response plan and a safe system design essentially,

변경관리(Management of Change) 기반구조 개발에 관한 연구

백종배 忠州大學校 2003 한국교통대학교 논문집 Vol.38 No.4

In the chemical plants, as each equipment or facility is operated with inter-relationship, the change of the process could cause significant problems in safety throughout not only that equipment or facility but also whole process in the plant. In these cases, MoC(Management of Change) has a crucial role to monitor and control the effect caused by change of the equipment or facility for improving safety and production to throughout the plant. Because the change of the process without assuring process safety could cause major industrial accident, this change seems to be very dangerous job. Although many chemical plants in US and UK introduced the MoC system based on guidelines provided by API, OSHA, HSE, EPA, CMA etc., there is still not introduced systematic MoC system in Korea because of lack of administrative support and infrastructure in chemical plants. This study analysed to national and foreign MoC code, proposed suitable code, and developed MoC Framework.

염소(Cl₂) 투입시설에 대한 누출가능성 예측

백종배 忠州大學校 2004 한국교통대학교 논문집 Vol.39 No.1

Likelihood analysis was used for the revision of release probability / frequency in chlorine Injection facilities used in chlorine process. Typically these facilities consist of pressure cylinder, vaporizer, pipeline, measuring equipment and safety equipment. This paper described the incident scenarios considered, likelihood analysis procedure and the selection and application of basic events and for failure rates of mechanical components. Human errors were also considered. The major objective of this paper is to estimate the likelihood of each determined incident scenarios.

SI엔진의 전자제어신호 처리에 관한 연구

이종숭,배종용,백운경 釜慶大學校 1999 釜慶大學校 論文集 Vol.4 No.1

In the spark ignitio engine, the number of the electronic control parts is increased so that the harmful exhaust gas can be reduced and the thermal efficiency of the engine can be enhanced. ECU can control the function of the engine better when the function signals of the engine are converted into the electrical signal under optimum condition. This study deals with the improvement of the signal measuring and processing for the electronic control in the SI engine. The measurement algorithm was developed within 1°accuracy of the crank angle, and as a result, the function of the engine can be more precisely controlled, such as the duration of the fuel injection and the timing of the spark ignition.

충주시에서의 LPG 탱크로리 수송중 위험성 평가에 관한 연구

白種培,李聖一 忠州大學校 1997 한국교통대학교 논문집 Vol.32 No.1

The demand of LPG and LNG will increase continuously due to high calories, clearness, and convenience for usage. These gases are used widely for power plants, industrial plants, and domestic fuel. But accidents related with gas are increasing in proportion to the increment of gas usage. Especially, LPG has high ignitability due to a weak dispersion to air and an accumulation at low place because LPG is heavier than air. There are many hazards during transportation as well as production, storage, and usage of LPG. Commonly, tanklorry is used for inland transportation of LPG. If tanklorry were to raise leakage incidents and then LPG is released during transportation, it will have serious effects on the environment as well as human damage to surrounding area. In this study, therefore, hazards which cause LPG of tanklorry to leak during transportation were identified and the risk of LPG transportation was assessed quantitatively. Accordingly, the result of this study might be a useful measure for predicting damage and preparing safe transportation strategies of LPG tanklorry.

가스 가공 공정에 대한 위험성 완화 계획에 관한 연구

백종배 충주대 산업과학기술연구소 1999 産業科學論文集 Vol.7 No.1

The number of fuel gas accidents is increasing in fuel gas facilities as increasing the processing plant. To prevent gas accident, the government institutions related to fuel gas industry partly managed the risk mitigation plan. This study focused on the risk mitigation plan for TL100-B system of Gas processing plant which has been reflected from the QRA(Quantitative Risk Assessment). and discussion is also made in the this study about some safety engineering practices for gas processing plant in connection with the interpretation of revised KISCO requirements.

MLL을 이용한 도시가스 시설의 안전 정보 시스템 구축에 관한 연구

白種培 忠州大學校 1998 한국교통대학교 논문집 Vol.33 No.1

Recently, demand of fuel gas has increased continuously due to its cleanness and convenience. However, accidents in the use of fuel gas have occurred in various patterns. Especially, the major accidents such as explosion and fire affected broad area and resulted in huge loss of lives and properties. The purpose of this study is to develop the safety information system which provides data of quantitative risk assessment for the prevention of accidents and for the efficient shaving and managing of the system. In this study, a computerized prototype of PISM(Pipeline Information System by Multimedia), which is essential to Transportation Risk Management, was developed as a main system to handle safety information. The PISM makes it easier to get information of quantitative risk assessment and to promote the prevention plan of fuel gas facilities. In addition, the risk assessment results can be shown on the map and provide better understanding to users.

지리정보시스템을 이용한 도시가스 배관의 수송 위험성 평가에 관한 연구

백종배 忠州大學校 1999 한국교통대학교 논문집 Vol.34 No.1

The demand of City Gas will increases continuously due to clearness and convenience for usage. It was used widely for various parts such as plants and domestic fuel. City Gas pipelines are defined as starting at a storage tank, a pump, or a facility boundary. Transportation Risk Analysis generally include all valve and pumping stations between the defined start and a similarly defined end point. The purpose of this research is to develope the geographic information system which provides information about risk assessment, accident, accident prevention plan, and efficient sharing and managing of the system.

액정폴리우레탄의 합성과 물질적 성질

이종백,이상배 東義大學校産業技術開發硏究所 2003 産業技術硏究誌 Vol.17 No.-

다섯 종류의 새로운 형태의 액정성 폴리우레탄을 4,4'-Bis(7-hydroxyheptoxy)biphenyl(BP7)와 2,6-tolylene diisocyanate (2,6-TDI), 2,5-tolylene diisocyanate (2,5-TDI), 2,4-tolylene diisocyanate (2,4-TDI), 1,4-phenylene diisocyanate (1,4-PDI) 및 hexamethylene diisocyanate (HDI)의 중부가 반응에 의해 합성하였다. 단량체 BP7은 스멕틱상을 형성하였으며 1,4-PDI/BP7을 제외한 나머지 폴리우레탄에서는 모두 액정성을 나타내었다. 생성된 폴리우레탄의 구조는 IR과 1H NMR 스펙트럼에 의해 확인하였고 열적 성질은 DSC와 편광현미경으로 관찰하였다. A new series of liquid crystal polyurethanes was synthesized by the polyaddition reaction of diisocyanates such as 2,6-tolylene diisocyanate (2,6-TDI), 2,5-tolylene diisocyanate (2,5-TDI), 2,4-tolylene diisocyanate (2,4-TDI) and 1,4-phenylene diisocyanate (1,4-PDI), hexamethylene diisocyanate (HDI) with 4,4-Bis(7-hydroxyheptoxy)biphenyl (BP7). 4,4'-bis(7-hydroxyheptoxy)biphenyl exhibited a smetic type mesophase. Mesophase was found for all synthesized liquid crystalline polyurethanes except 1,4-PDI/BP7. The structures and the thermal properties of polyurethanes were studied by using FT-IR and ^1H NMR spectroscopy, DSC measurements and a polarizing microscope equipped with a heating stage.