• 한국재난정보학회 논문집
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• 제15권4호
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• pp.514-523
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• 2019

연구목적: 본 연구는 국내 건설업 분야에 종사하는 외국인 근로자들의 고용안정을 위해 필요한 제도적 개선방안을 마련하고자 하였다. 연구방법: 외국인 근로자 현황을 조사하기 위해 통계청 및 관련 보고서를 분석하였고, 이를 기반으로 한 제도 개선 방안을 마련하였다. 연구결과: 현시비교우위지수(RCA) 분석을 통해 내국인 근로자 대비 외국인 근로자의 기술주준을 평가한 결과 형틀목공, 철근공, 콘크리트공, 석공(타일공), 방수공의 순으로 분석되었다. 결론: 건설업 활성화를 위해 부족한 현장인력 문제를 해결하기 위해 도입된 외국인 근로자 근무제도를 활성화하고 문제점을 개선하기 위해 건설현장에서의 고용허가제 운용을 개선할 필요성과 고용허가제를 도입하는 건설업 규모를 제한할 필요가 있다.

• 한국산업융합학회 논문집
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• 제24권6_2호
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• pp.781-786
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• 2021

Korean domestic workers are trend to avoid harmful and dangerous jobs calls 3D work due to the poor working conditions. Therefore, the incoming population of foreign workers is increasing to fulfill the required labor force. Mostly these foreign workers are placed in small and medium-size industries. As work that induces musculoskeletal disorders(WMSD) is equally exposed to domestic workers as well as foreign workers, this study attempted to investigate the work burdened by musculoskeletal disorders and derive improvement measures by understanding the actual conditions of the worksites of foreign workers. The result of this investigation defines that the possibility of developing musculoskeletal disorders is very high in the environment in which more than 40% of the respondents work with heavy objects and repetitive work of wrists and elbows. To prevent the symptoms of musculoskeletal disorders among foreign workers, three measures were proposed. To reduce the mandatory check-up period of WMSD under the Occupational Safety and Health Act, to revise the employment permit system, and to enhance the practical help of EPS education. Safety and health management of foreign workers is becoming an essential task not only for securing a workforce but also for the national image. Personal and economic losses at the national level should be minimized through policy support such as financial support for small and medium-sized businesses in Korea and supplementation of legal systems for the protection of foreign workers.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 추계 학술논문 발표대회
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• pp.7-8
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• 2011

The use of foreign labors was inevitable at the construction site in Korea. Most construction companies are being used them in the workplace due to the cheap labor, but their work ability are insufficient as much as Korean labors. In this paper is expected to confirm the foreign labors' employment conditions and study to analyze the changing of foreign labors' work ability.

• 항공우주시스템공학회지
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• 제8권2호
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• pp.27-32
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• 2014

From the flight safety and the performance point of views, a new engine installation impacts an helicopter development or upgrade program significantly. More than a close relationship between an aircraft manufacturer and an engine manufacturer is necessary for the best integration work from the program initiation phase. In this paper, technical cooperation between aircraft and engine companies, and technical supports by the engine manufacturer for the T700/701K engine during the Surion development program are summarized. The applications of official technical program documents, US Mil-spec, France airworthiness regulations as the standard of the engine installation work, and engineering activities at each phase such as contract, design and manufacturing, flight clearance, ground and flight tests are described. This paper would be a cornerstone for the future domestic helicopter development program.

• 한국안전학회지
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• 제38권3호
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• pp.51-60
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• 2023

Investigation of the cause of the relatively recent building collapse accident in Gwangju revealed a lack of awareness about the safety of the dismantling construction system among stakeholders, in the form of issues such as illegal subcontracting, unauthorized design changes, and insufficient safety supervision. This study was conducted to analyze the safety interactions between the building dismantling construction system and the involved stakeholders and to propose ways to prevent accidents in related institutions and workplaces. AcciMap and STAMP-CAST analysis methods were used to evaluate safety interactions among the various stakeholders participating in building demolition work. Analysis results revealed that the collapse accident during the dismantling work was caused not only by structural causes occurring in the construction stage, but also by various causes throughout the system, such as the dismantling plan preparation stage and the construction permit stage. The results also revealed the need for proper implementation of safety control measures by various stakeholders to prevent collapse accidents during dismantling construction.

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 1993년도 한국우주과학회보 제2권2호
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• pp.21-21
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• 1993

The imaging areas of currently available optical detectors are relatively small to cope with large image areas such as telescope focal Planes. One Possibility to obtain large detection areas is to assemble mosaics of Charge Coupled Devices(CCDs) and drive them simultaneously. Parallel driving of many CCDs together rules out the possibility of individual tuning; however such optimisation is very important when the ultimate low light level performance is required particularly for new devices. In this work, a new concept has been developed for an entirely novel approach where the drive waveforms are multiplexed and interleaved. This simultaneously reduces the number of leadout connections and permits individual optimisation efficiently. The controller has been designed to include one electronic of component produced by CAD software where most of the digital circuits are integrated to minimise the component count and improve the efficiency of the system greatly. The software has an open architecture to permit convenient modificationl by the user to fit their specific purposes. The desire of controller allows great flexibility of system parameters by the softwa re, specifically for the compatibility to deal with any number of mixed CCDs and in any format within the practical limit. The system has been integrated to test the performance and the result is discussed for readout noise, system linearity and cross-talk between the CCDs. The system developed in this work can be applicable not only for astro nomical observation with a telescope but also in other related fields for low light level detection systems such as spectroscopic application, remote sensing and X-ray detecti13n systems with large sensing areas and high resolution.

• 한국가스학회지
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• 제24권1호
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• pp.76-81
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• 2020

최근 가연물이 있는 장소에서 용접·용단 작업 중 불꽃 비산 등으로 인한 화재·폭발사고가 빈발하고 있으며, 이러한 화재사고의 원인은 위험물 제거, 불꽃 비산방지 조치 등 기본적인 안전수칙 미준수가 대부분으로 산업안전보건법의 제도적인 보완이 필요하다. 본 연구에서는 국내 용접·용단 작업 등 화기작업에서의 화재·폭발 사고를 시스템적 관점에서 분석하고 그 결과를 반영하여 화재감시자 배치 확대, 화재위험작업의 사전승인, 화재예방 안전교육 강화 등 제도개선방안을 제안하였다.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1996년도 춘계학술발표회논문집(2)
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• pp.725-730
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• 1996

In this work, the software behavior under memory faults in operation phase is modeled and simulated using the stochastic activity network, generalized stochastic Petri nets. This networks permit the representation of concurrency, timeliness, fault tolerance, and degradable performance of system and provide a means for determining the stochastic behavior of a complex system. We estimate the reliability of an application software in the digitized system in nuclear power plants and show the sensitivity of the software reliability to the major physical parameters which affect the software failure in normal operation phase. We found that the effects of the hardware faults on the software failure should be considered for predicting the software dependability accurately in operation phase.

• 한국콘텐츠학회논문지
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• 제14권4호
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• pp.135-147
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• 2014

외국인근로자의 임금을 둘러싸고 그동안 균등대우와 합리적 차별문제를 부분적으로 다루어져 왔다. 또한 외국인근로자라는 측면에서 생산성논의와 함께 합리적 차별의 문제가 논의되기는 하였으나 극히 제한적이었다. 외국인근로자에 대한 최저임금적용 제외를 계속하여 경영계로부터 주장이 되어 오고 있다. 내국인 근로자와 달리 외국인근로자는 고용허가를 받아 비교적 제한된 장소, 제한된 기간 동안 임금을 목적으로 근로를 제공하는 지위에 있다는 점에서 임금을 둘러싼 법과 현실과의 괴리되어 있는 점을 확인할 수 있다. 이것은 임금을 둘러싼 고용주와 근로자의 고충과 갈등으로 표출되어 나타나고 있다. 그동안 임금에 관한 균등대우 등에 부분적으로 연구는 있어왔지만 명확하게 논의가 정리되었다고 보기는 어렵다. 물론 이 연구에서도 이와 관련하여 연구의 한계성은 있을 수밖에 없을 것이다. 이 논문에서는 고용허가제 이후 임금을 둘러싼 실태와 고용주와 외국인근로자의 고충과 갈등요인을 살펴보고 임금관련 법제도적 개선방안을 제시하고자 하였다.

• Journal of applied mathematics & informatics
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• 제8권1호
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• pp.165-180
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• 2001

This paper presents a new difference scheme for numerical solution of stiff system of ODE’s. The present study is mainly motivated to develop an absolutely stable numerical method with a high order of approximation. In this work a double implicit A-stable difference scheme with the sixth order of approximation is suggested. Another purpose of this study is to introduce automatic choice of the integration step size of the difference scheme which is derived from the proposed scheme and the one step scheme of the fourth order of approximation. The algorithm was tested by means of solving the Kreiss problem and a chemical kinetics problem. The behavior of the gas explosive mixture (H₂+ O₂) in a closed space with a mobile piston is considered in test problem 2. It is our conclusion that a hydrogen-operated engine will permit to decrease the emitted levels of hazardous atmospheric pollutants.