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.

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.

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.

英國의 行政救濟制度 : 大權的 救濟制度를 中心으로 Stressing on the Prerogative Remedies

白種仁 전북대학교 법학연구소 1985 法學硏究 Vol.12 No.-

Outstanding characteristics common to all the modern administrative states are the expansion of executive power and the crisis of legalism. Accordirgly in the course of being exercised the executive power which has become diversed and strengthened,administrative law in modern administrative states should solve how to adjust a conflict of interests between nation and civil, how to do judicial review of administrative action, or how to serve faithfully the remedy of civil's rights against the acts of maladministration. By the way, while traditionally administrative law of, Continental System had defended the privileged position of administration and made the justification for exercising such an administrative power, that of Anglo- American System had emerged in the process of solving the social problems generated in the coarse of development of liberalism and capitalism. Therefore, thinking of reality of contemporary administratives states orienting substantial legalism, we think that the latter will become the object of our stronger concern than the former. Moreover, because it can be said that Enlglish law is the system of various remedies as a whole, and the developnent of English administrative law depends on that of remedies, that is still more true. Accordingly, in this paper, administrative remedies of English law are studied stressing on the prerogative remedies. This paper is divided as follows ; Chap. Ⅰ) Introduction Chap. Ⅱ) Administrative Remedies of English Law. 1) The System of Remedy 2) Characterists of the System of Remedy Chap. Ⅲ) Prerogative Remedies 1) Certiorari 2) Prohibition 3) Mandamus 4) Defects of Prerogative Remedies Chap. Ⅳ) Reforms of the Law of Remedies 1) Discussion on the Reform 2) General Contents of the Reforms of the Law of Remedies Chap. Ⅴ) Conclusion.

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.

Assembly Language를 이용한 직렬 통신

백순흠,박종원 충남대학교 자연과학연구소 1992 忠南科學硏究誌 Vol.19 No.2

The serial port on the microcomputers is a communication link to other computers or device including modems and serial printers. The serial communication is economic and simple method rather than parallel communication in installment and design. Up to now, the serial port has been used to designate the computer's serial interface to the outside world. So, we study and implement the basis of communication (the serial communication) for he future study (parallel communication)

IEEE1394 제어기술을 이용한 정보 가전기기 컨텐츠

백경주,강성관,이상학,이승학,박종안 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2

Internet appliances information industry is the future industry fields of Existing as a appliance market becomes saturation. Such as digital TV, Internet refrigerator, DVD and digital video that next generation digital goods appear the importance of the information appliances have been emphasized. in this paper, recently wire & wireless home networking technology for Internet appliances combine and connects, data send a broadband with 400Mbps & 3.2Gbps than used IEEE1394 information technology such as design implemented the system to control besides and proved the adequacy through the simulation.

혼합치열기 반대교합자에서 Ⅲ급 악간견인력의 효과에 관한 연구

백종은,정규림 대한치과교정학회 1991 대한치과교정학회지 Vol.21 No.2

The purpose of this study is to observe how the Class Ⅲ intermaxillary elastics act upon the craniofacial structures of mixed dentition with anterior crossbites. The cephalometric headplates of 16 childrens treated only with Class Ⅲ elastics(C Ⅲ elastics group) and 23 childrens treated with Class Ⅲ elastics and Reverse pull headgear simultaneously(C Ⅲ elastics +RPHG group)were traced, digitized and statistically analyzed. The results were as follows. 1. Anterior displacement of maxilla was observed in both groups. 2. Simultaneous Class Ⅲ elastics and reverse pull headgear group showed the counterclockwise rotation of maxilla, however Class Ⅲ elastics group manifested no rotational change of maxilla. 3. Simultaneous Class Ⅲ elastics and reverse pull headgear group showed the downward and backward rotation of mandible, however Class Ⅲ elastics group manifested no rotational change of mandible. 4. Counterclockwise canting of occlusal plane, labial tipping of upper incisor and lingual tipping of lower incisor and mesial displacement of upper molar to pterygoid root vertical were observed in both groups.

Stellite 6 합금의 열간 압연 특성

백응률,심종필,김판권 영남대학교 공업기술연구소 2001 工業技術硏究所論文集 Vol.29 No.1

The aim of the investigation was to study the effect of hot working on the tensile properties of the Stellite 6 alloy, normally used in the form of castings. To determine most suitable hot working temperature, firstly specimens were preheated so as to obtain maximum deformation without cracking, upsetting tests were preformed at temperatures ranging from 1150 to 1300℃ at intervals of 50℃. As the result, the deformation of 35% without cracking is possible at 1250℃. Both cast and hot worked specimens were investigated microstructure, composition of carbides, constituting phase and hardness of specimens by using SEM and tensile test was carried out in order to know tensile properties of specimens. As the result of observing Microstructure, hot workings breakdowns eutectic carbide network in the Stellite 6 alloy, and eutectic carbides are aligned in rolling direction. The result of the tensile test, hot worked specimen is much higher than the casting specimen in the tensile properties.

Pyriminobac-methyl과 azimsulfuron 합제의 신규제형인 분산형 정제에 대한 독성 평가

백경진,이동연,이상훈,김태원,정두순,임종환,김명석,박병권,윤효인 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-

Dispersible tablets disintegrate either to form a stabilized suspension rapidly in water, or to disperse instantaneously in the rice field without the aid of water. In this study, the newly formulated dispersible tablet form of herbicidal combination, pyriminobac-methyl and azimsulfuron, was evaluated the safety for human and animals in the toxicological viewpoints. The LD_(50) value of dispersible tablet form for pyriminobac-methyl and azimsulfuron was above 2,500 mg/kg for the oral route and above 2,000 mg/kg for the dermal route. It is considered to have low acute oral and dermal toxicity based on the findings of the present studies. In addition, the combination of pyriminobac-methyl and azimsulfuron showed mild skin irritant under the conditions of this study and conjunctival redness and slight opacity on cornea appeared from 1 hour after application.