This paper was concerned about case study for preventing WMDSs(Work-related Musculoskeletal Disorders) by using Thinking Process of TOC(Theory Of Constraints), Unfortunately, the number of WMDSs are rising steadily in auto-part manufacturer. These WMDSs have on worse and worse influence not only on the competition of enterprise but on the life quality of a worker. The research results are helpful to establish the preventing WMDSs and improvement of workplace environments for small-medium sized auto-part company.
급속도로 발전하는 산업의 고도화와 이에 따른 업종의 다양화, 이에 동반되는 예상치 못한 산업재해는 불특정 다수에게 인적, 물적 피해를 야기 시키고 있다. 산업재해 예방을 위해 다양한 선행 연구들이 진행되었으나 이들 연구는 기존의 산업재해 데이터를 토대로 빈도분석, 비교분석을 통한 관리적, 교육적 등치 대책만을 제시하고 있다. 본 연구에서는 산업재해 예방을 위해 객관적이고 정량화된 데이터를 통한 예측 분석이 가능한 데이터마이닝을 적용하여 대표적인 기법인 의사결정나무의 CHAID, CART, C4.5, QUEST 4가지 알고리즘 비교분석하여 산업재해 예방 및 전문가 시스템 구축을 위해 적용할 수 있는 최적의 알고리즘을 제시하도록 한다.
Small & medium sized company is the most efficient way of management to prevent my accident in the area of industry. Employees are more than 30 to less than 50 persons and which is liable for securing a safety manager on site, is gradually seen on the surface. Even a small company is nothing less than a dead zone from a safety since it's free from his obligation of employing a safety manager. Let us now think about the effective measures against a industrial accident by collecting, reviewing a variety of preventive measures, which is being carried out for preventing an industrial accident happening in a small company, and comparing, analyzing the effect according to the respective measures. Through this research, it's expected to contribute to both the development of small & medium sized company and our national economy with the improvement of a company's competitiveness and the accumulation a technical background by way of prevention from occurring industrial accident in a small & medium sized company, in accordance with an friendly environment of work room to protect the employee from leaving his job.
Recently occupational safety and health literatures begin to emphasize the influence of social, organizational or psychological context. Based on this research trend, this paper tried to review the relationship between safety climates and safety compliance. Based on the responses from 385 manufacturing workers, this paper reviewed the relationships among safety climates, safety motivation, and safety compliance. The results of statistical analysis showed that all safety climate factors(management involvement, leadership, safety training, precaution activities, safety system) have affirmative effects on safety motivation and safety compliance. Also, safety motivation appeared to have mediating effects on the relationship between 5 safety climate factors and safety compliance. Especially it appeared to have full mediating effects on the relationship between safety training/ safety system and safety compliance.
Recently occupational safety and health literatures begin to emphasize the influence of social, organizational or psychological context. Based on this research trend, this paper tried to review the relationship between safety climates and safety compliance. Based on the responses from 385 manufacturing workers, this paper reviewed the relationships among safety climates, safety motivation, and safety compliance. The results of statistical analysis showed that all safety climate factors(management involvement, leadership, safety training, precaution activities, safety system) have affirmative effects on safety motivation and safety compliance. Also, safety motivation appeared to have mediating effects on the relationship between 5 safety climate factors and safety compliance. Especially it appeared to have full mediating effects on the relationship between safety training/ safety system and safety compliance.
In this paper, we implement a portable bioelectric signal measurement system for the safety of industrial workers. The developed system consists of two parts: the one is boielectric signal measurement unit and the other is signal analyzer system with PDA. The former includes signal processing part, A/D convertor, and 8051 based microprocessor, the latter includes software for signal analysis and display. The developed system detects industrial worker's ECG and displays and stores it to PDA. The ECG data in PDA can be transmitted to PC located in a distance, allowing a doctor to review the ECG and make a treatment decision. A doctor analyzes the ECG data and gives medical treatment to industrial worker.
In the electrode fabrication of unit cell, it was ascertained that electrochemical characteristics were greatly increased with 90 wt.% of BP-20, 5 wt.% of Super P and 5 wt.% of mixed binder [P(VdF-co-HFP) : PVP =7 : 3] The self-discharge of unit cell showed that diffusion process was controlled by the ion concentration difference of initial electrolyte due to the characteristics of Electric Double Layer Capacitor (EDLC) charged by ion adsorption in the beginning, but this by current leakage through the double-layer at the electrode/electrolyte interface had a minor effect and voltages of curves were remained constant regardless of electrode material. The electrochemical characteristics of 2.3 V/3,000 F grade EDLC were as follows: 0.35 m of DC-ESR (100 A discharge), 0.14 mof AC-ESR (AC amplitude 100 mV), 2.80 Wh/kg (3.73 Wh/L) of energy density and 4.64 kW /kg (6.19 kW/L) of power density. Power output was compatible with electric vehicle applications, uninterrupted power supply and engine starter, in due consideration of Ragone relations.
산업재해의 직접적인 원인은 작업자의 불안전한 행동과 작업과정에서의 안전시설 설치미흡으로 인한 불안전한 상태로와 기술적, 교육적, 관리적 원인의 복합적인 형태로 발생되는데 그 가운데 산업안전보건법상의 건설공사 각 공종 별 기술적인 안전시설설치 기준이 건설업 종사자에게 쉽게 적용하기가 현행 법기준에는 문제점이 있으며 이러한 복잡한 법기준을 분석하여 안전사고 예방 기법에 적용하고자 제시하고자하며, 향후에 이를 바탕으로 산업안전보건법상의 안전기준을 체계적으로 분석하여 제시하고자 한다.
The use of industrial robots has been one of the most important innovations in production technology in recent years. It is true that robotic techniques, as applied to hazardous operation in industry, have reduced the risk of injury and occupational disease among workers. However, new types of occupational safety and health risks, associated with unpredictable motion patterns and erratic idle times and serious injuries and deaths have occurred due to operator misperception of these robot design and performance characteristics. This paper provides an overview of ergonomic and safety issues which are important in the design of robotic workspaces. Particularly, this study uses MORT(Management oversight and risk tree analysis)as the system's safety technique applied to robotics.
Though the Honorary Industrial Safety Supervisor System was activated from 1995, the system did not show the better effectiveness due to the unconcern of top management and the insufficient support of government etc. The purpose of this study is to analyze the problems of the system and to present the improvement direction of that system. The research result points out that we have to consider the following countermeasures; First, the government should make up the support system by a law dealing with proper compensation and professional education for the supervisor, and tax reduction for companies. Second, the companies should make an effort firming up the safety consciousness of top management, and strengthening the employees' concern about safety through continuous safety education and campaign by a labor union, and promoting the supervisor's pride through recognition from top management and other employees.
We have endured a lot of social and economic loss due to the industrial calamities. A study for the government policies to reduce the loss in the field of industrial safety and health leaves much to be desired. The practical one on the government policies industrial safety and health policies, however, hasn't been accomplished as much expected. The purpose of this study is to suggest a research framework fir the execution process analysis, which is needed to find out the desirable or undesirable elements of industrial safety and health policies. The focus of the analysis lays on a policy problem of the industrial safety and health criteria. And based on this paper, it will proceed to the practical research for the industrial safety and health policies.
산업재해로 인한 개인·사회·국가적 손실이 막대함에도 불구하고, 이러한 산업재해손실을 최소화하기 위한 산업안전보건정책의 결정과 집행과정에 대한 분석·연구는 매우 미흡한 실정이며, 유사한 성격의 사회정책으로서 공정거래제도나 환경분야보다도 훨씬 뒤떨어 져 있다 본 논문은 산업안전보건기준이라는 정책과제를 중심으로 산업안전보건정책의 집행 과정의 성공과 실패요인의 분석에 필요한 연구분석들을 제시하고자 하며, 향후에 이를 바탕으로 실증적인 적용실태연구를 통해 산업안전보건정책방향의 일단을 제시하고자 한다.
기업 생산 활동의 중요한 요소 4가지를 살펴본다면 사람, 기계, 원료, 방법이라고 이야기 한다. 기업에서는 생산성을 높이기 위하여 각종의 여러 기법등을 통하여 생산성 향상에 촛점을 두고 있다. 그러나 생산성 향상만큼 중요한 것은, 기업이 생산활동을 하는데 있어 기업의 손실을 최대한으로 감소시킬 수 있느냐에 따라서 기업의 성공여부가 결정될 수 있을 것이다. 기업에서 발생되는 손실부분중 커다란 부분을 차지하고 있는 것이, 산업재해로 인한 인적·물적인 손실이라고 할 수 있다. 현재 기업의 산업안전에 관한 실태를 살펴보면 인간중심의 안전관리보다는 기계중심의 안전관리가 더 우월하게 이루어지고 있다. 산업재해를 예방하기 위한 방법으로 기업 내에서 실시되는 산업 안전 교육이 기업 내에서 효율적으로 자리잡아 기업의 생산성 향상에 도움이 되고자 한다.
About one hundred twenty thousand (±twenty thousands) people are wounded and about two thousand persons are dead from industrial accidents in Korea [1], Therefore, Korea is notoriously called as a haven of disaster. This study investigated the safety situation of industries and attitude of safety managers to reduce the occurrence of accidents. The period of investigation was during March through August, 1977. Two hundreds of safety managers were replied, but replies of 183 were used because some of them were inappropriately answered for the questions. Their replies were analyzed by SAS program. As a result, only three persons out of 183 managers were women, 83% of them are married, 25.1% were graduated from university, 15.2% were graduated from two-year college. Full time safety managers were only 8% of them. Safety managers who have experienced injured before their current position were 26.3%. This confirms that company allocated injured persons to a safety department. Korea also needed an educational agency like NIOSH and a punishment agency like OSHA in USA[5]. These agencies can solve a fundamental problem of safety management for small-and-medium size industries. Furthermore, a new safety management bureau for controlling these two agencies will be necessary to reduce accidents in near future.
In the real environment, it is not easy to get the effective training or to simulate several hazard situations for safety because of the direct exposure to the hazards of the actual system. But the virtual environment(VE) can help the users to get the effective training or to simulate all kind of possible situations without the exposure to the harzards of the actual system. Therefore, the number of virtual reality(VR) application for safety will be increased dramatically in the future. This paper proposes a category of VR applications and also the steps to develope the VE for emergency management.
실 상황하에서 안전에 대한 훈련이나 시뮬레이션은 매우 위험한 결과를 초래할 수 있으므로 효과적인 훈련을 하기가 어렵다. 그러나 가상현실 기술을 이용하여 몰입감 있는 가상환경을 구축하여 활용하면 참여자가 위험에 직접 노출되지 않고 안전에 대한 훈련을 받을 수 있으며, 여러 시나리오에 대한 시뮬레이션을 할 수 있다. 이러한 이유로 가상현실의 안전분야에 대한 응용은 급속도로 확대될 것으로 사료된다. 본 연구에서는 가상현실의 안전분야 응용에 대한 범주를 제시하고, 응급상황의 발생 시에 이를 효율적으로 관리할 수 있는 가상환경을 구축하기 위한 개발단계를 제시한다.
본 연구의 목적은 방사선의 사업적 이용에 따른 방사선발생장치 또는 방사성동위원소 등(이하 방사성동위원소 등) 을 운용하는 방사선작업종사자를 대상으로 방사선안전관리와 관련된 지식의 설문 조사하고 이를 체계적으로 추이분석함으로서 방사선 이용시설 등의 방사선안전 문화를 정착시키기 위함에 있다. 연구 방법은 2011년 08월 01일 부터 09월 05일 까지 861 명의 방사선 종사자를 대상으로 설문 조사를 하였다. 분석 방법으로 설문 응답자의 일반적인 특성과 기관정보는 빈도 분석을 하였으며 방사선안전관리에 대한 지식 수준은 평균과 표준편차를 구하여 각각 비교하였다. 분석 결과 작업 종사자의 방사선 안전 관리에 대한 지식 조사에서는 종사자 모두 높은 수준으로 평가 되었다. 결론적으로 방사선 작업종사자들의 방사선 안전관리와 관련하여 보다 다양한 요인들에 대한 연구들이 수행되어야 하며 작업종사자들의 의식을 높이기 위해서 시기적절한 교육이 필요할 것으로 사료되며, 지속적으로 방사선 작업종사자들을 관리함으로써 효율적인 방사선이용이 될 수 있는 기반이 확립될 것으로 사료된다