• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2011년도 춘계학술대회
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• pp.143-151
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• 2011

Reviews indicated that supervisory feedback provided to workers is the most effective intervention to change performance in organizational settings. However, supervisors themselves hardly receive feedback on their own behaviors. This study implemented self-management technique to improve supervisory behaviors at a construction site. Self-management in the current study consisted of goal setting, self-monitoring and providing reinforcers for two supervisory behaviors; (1) conducting safety observations and (2) interacting with workers for safety improvement. Two supervisors severed as participants. An AB within-group design was adopted. After baseline (A), self-management technique was implemented (B). Results suggested that self-management was effective in increasing the two supervisory behaviors. Moreover, the increased supervisory behaviors were associated with improvement in workers' safety performance.

• 한국안전학회지
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• 제27권6호
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• pp.151-159
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• 2012

This study implemented self-management technique to improve supervisory behaviors at a construction site. Self-management in the current study consisted of goal setting, self-monitoring and providing reward for two supervisory behaviors; (1) conducting safety observations of workers safety behavior and (2) providing safe related feedback. Two supervisors severed as participants. An AB within-group design was adopted. After baseline(A), self-management technique was implemented(B). Results suggested that self-management was effective in increasing the two supervisory behaviors. Moreover, the increased supervisory behaviors were associated with improvement in workers' safety performance.

• 기술사
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• 제43권3호
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• pp.28-33
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• 2010

The related industrial technologies are also being developed in medicine, education, the military, transportation, process management, security management and information technology industries due to a rapid progress in telecommunications technology. The supervisory remote control system is based upon telecommunications technology. The supervisory remote control systems are used in various ways such as city gas, water supply and drainage, environment, power, communication and device control fields. The supervisory remort control system became a solution with complex systems and important technologies in electricity, city gas filed that require safety management skills. The supervisory remote control system as a special technology has a lot of practical applications. In this paper, Let me examine the present status of remort control system applications and present development plans and alternatives in city-gas industrial technology.

• Journal of Radiation Protection and Research
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• 제31권3호
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• pp.155-164
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• 2006

액체섬광계수기를 이용하여 환경시료를 분석하는 모든 과정에서 계측 조건 및 방법론 차이에 의한 불확실성이 존재할 수 있을 것으로 판단하여 본 연구에서는 이에 대한 평가를 정량적으로 수행함으로써 비교적 정확하게 환경시료를 분석하고자 하였다. 이를 위해 결과에 영향을 미칠 수 있는 변수를 도출한 후 각 변수에 대한 영향을 평가한 결과, 분석시료를 제조하는 과정에서의 인적 및 물리적인 불확실성은 무시할 정도로 미미하였고, 측정용기의 무게 차이에 따른 영향은 나타나지 않았다. 외부선원의 조사시간을 단계적으로 증가시킨 결과 시간이 증가함에 따라 데이터의 분산 정도는 감소하면서 $75{\sim}90$ sec에서 포화상태에 도달하였고, Repeat 방법이 Replicate 방법에 비해 데이터의 신뢰성이 높게 나타났다. 또한 방치시간에 따른 영향을 평가한 결과 분석 냉 암소에서 약 1,000 min 이상 방치시킨 후 시료에 대한 분석을 수행해야만 잔상 및 이상 유동에 의한 영향은 거의 없는 것을 알 수 있었고, 결과에 대한 검증을 수행하기 위해 방사능 오차분석과 함께 Chi-square test를 수행한 결과 신뢰성 있는 결과를 보여주었으며 이러한 분석 및 검증 결과에 근거하여 계측 결과에 대한 오차 및 불확실성을 감소시킬 수 있었다.

• 산업경영시스템학회지
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• 제16권27호
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• pp.105-111
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• 1993

Human works shift its roll from physical condition to the system supervisory control task In this paper safety-presentation configuration is discussed instead of well-known fault-warning configuration. Of paticular interest was the personal factor which include the cognitive process. Through a performance between each person information processing(d') and decision process($\beta$) was pointed out to explain the sensitivity of personal cognitive process. Impact of uncertainty effect the supervisor having doubt situations. These facts are released by the use of flat fuzzy number of $\beta$ and its learning rate R.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제20권10호
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• pp.561-566
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• 2014

통신기능과 상호연동가능성을 통해 의료기기들을 통합 제어함으로써 의료서비스의 효율과 환자의 안전성을 높이려는 요구가 증가하고 있다. 그러나, 네트워크와 제어컴퓨터를 통한 의료기기의 통합이 체계적이지 못할 경우 시스템의 복잡도를 크게 높이게 되며, 이는 안전사고의 위험성을 높일 가능성이 있다. 본 논문에서는 의료기기간의 안전한 상호작용 형태를 패턴으로 분류하였으며, 이를 이용하여 네트워크 통합형 의료기기의 제어 구조를 계층적으로 설계하고 안전성을 검사하는 방법을 제시한다. 제안된 기법은 Architecture Analysis and Description Language (AADL)의 플러그인으로써 구현되었다. AADL환경에서 의료기기들을 가상으로 통합하고, 이들의 구조적인 안전성 여부를 검사할 수 있게 함으로써, 실제 개발에 앞서 안전성을 검증할 수 있게 된다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2005년도 춘계학술대회
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• pp.9-12
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• 2005

In this paper. we offer a new monitoring system that controls all of the windfar. it can also apply use general wind turbine systems and real meteorological tower. We propose a hierarchical releiable monitoring system connected by wireless communication channels between monitoring host computer and modular slave measuring subsystems. Our system has two hierarchical subsystems: slave measuring systems, and supervisory host computer. We design and implement that the slave measuring subsystems is placed in meteorological tower and wind turbines, and the supervisory host computer in safety zone, The micro-controller in slave measuring system is duplicated using cold-standby method for reliability. The host computer and slave system constructs a feedback system, with wireless communication channel between them. For monitoring and command function, the supervisory computer is implemented with a Personal Computer using graphic user interface. Consequently. we can get a reliable but economic system.

• Journal of Radiation Protection and Research
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• 제36권2호
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• pp.71-78
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• 2011

영광원전민간환경감시기구에서 2000년~2009년까지 조사한 24종의 육상시료와 10종의 해상시료를 대상으로 총 3,000여건 이상의 시료를 분석한 결과 대부분 시료에서 영광원전 운영에 의한 영향이라 판단할 수 있는 인공핵종은 검출되지 않았다. 그러나 발전소 내인 전망대와 취 배수구에서 채취한 빗물과 해수시료에서 법적 기준치 이내이긴 하지만 $^3H$가 검출되었다. 전망대 빗물에서 검출된 $^3H$ 농도는 연평균 기준으로 30.5~40.0 $Bq{\cdot}L^{-1}$로 원전주변 및 비교지점에 비해 약 20배 정도로 높게 나타났으나 법적 기준치인 40,000 $Bq{\cdot}L^{-1}$의 0.1% 수준으로 나타났다. 영광원전 부지 내부의 취 배수구 해수시료에서 검출된 $^3H$ 농도는 연평균 기준으로 2.75~17.8 $Bq{\cdot}L^{-1}$로 사업자가 제시한 농도에 비해 다소 높게 검출되었고, 배수구 해수에서 검출된 $^3H$ 농도가 취수구에 비해 12~170% 정도 높게 검출되었다. 이러한 계측 및 분석 결과에 근거하여 전망대 빗물과 배수구 해수의 경우 비록 법적 제한치 미만이기는 하지만, 발전소로부터 주위 환경으로 방출된 액 기체 형태의 $^3H$가 검출된 것이라 판단하였다. 따라서 향후에도 전망대 빗물과 취 배수구 해수의 경우 주기적 지속적인 분석을 통해 $^3H$ 분포 경향을 파악해야 할 것으로 사료되어 이들 시료에 대해서는 지속적인 Monitoring이 필요할 것으로 판단된다.

• 자동차안전학회지
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• 제5권1호
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• pp.62-68
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• 2013

This paper describes development of 4 Wheel Drive (4WD) Electric Vehicle (EV) based driving control algorithm for severe driving situation such as icy road or disturbance. The proposed control algorithm consists three parts : a supervisory controller, an upper-level controller and optimal torque vectoring controller. The supervisory controller determines desired dynamics with cornering stiffness estimator using recursive least square. The upper-level controller determines longitudinal force and yaw moment using sliding mode control. The yaw moment, particularly, is calculated by integration of a side-slip angle and yaw rate for the performance and robustness benefits. The optimal torque vectoring controller determines the optimal torques each wheel using control allocation method. The numerical simulation studies have been conducted to evaluated the proposed driving control algorithm. It has been shown from simulation studies that vehicle maneuverability and lateral stability performance can be significantly improved by the proposed driving controller in severe driving situations.

• 한국안전학회지
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• 제23권2호
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• pp.57-64
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• 2008

The Semiconductor industry in Korea has achieved a great contribution to the growth of its economy for the last 20 years with its product export ranked to #1 nowadays. However, the working environment in semiconductor industry is always exposed to a potential risk of critical safety issue for workers with many kinds of utilities used such as toxic chemicals, gases, high vacuum and high voltages of electricity. This study is focused on empirical research to find out the factors on safety climate and to examine the relationships of safety climate and safe work behaviour in the work site of Korea semiconductor industry. As a result of simulation, a strong positive relationships and safe work behaviour have been identified in this study. Its result and implications has been discussed and suggested further studies on its limitation from this study.