• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 1999.10a
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• pp.104-104
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• 1999

• Review of KIISC
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• v.24 no.1
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• pp.53-58
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• 2014

과거의 제어 시스템은 외부 네트워크와 연결되지 않아 그 자체로 보안성을 보장 받을 수 있었다. 그러나 제어시스템의 디바이스들이 다양해지고 효율적인 제어를 필요로 하여 현재의 제어시스템은 기존 네트워크에 접속되어 효율적으로 관리되고 있다. 따라서 제어시스템 관리 효율은 증대 되었으나, 기존 네트워크가 가진 사이버 공격에 노출되어 보안적인 요소가 필요해 졌다. 본 논문은 많은 제어 시스템의 프로토콜 중 컨트롤 센터와 변전소간의 통신에 사용되는 DNP(Distributed Network Protocol)3 프로토콜을 중점으로 다루며 어떠한 취약점에 노출이 되어 있는지, 어떠한 보안 요소의 연구가 행해지고 있는지에 대해 다룬다.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.35 no.4
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• pp.37-44
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• 2019

According to the statistical surveys and studies, insufficient maintenance in the use of existing buildings caused fire and collapse accidents. In this respect, I analyzed the data managed by the current building maintenance and inspection system to find out the actual state of safety management and proposed two significant results. First, regarding the state of the buildings, the safety management status of the small-sized ones, where 20 years or more passed after construction, is the worst and a priority improvement plan is required. Second, there are eight deeply concerning factors for the fire incidents and collapse accidents of buildings. In the order of high risk, these factors are structural strength (seismic design), exterior wall finishing material, basement floor, interior finishing materials, other evacuation facilities, corridors stairs entrances, rooftop, fire partition. We need to have more special designs and management plans regarding high-risk factors as a system to prevent accidents in the building.

• Journal of the Korean Society of Industry Convergence
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• v.9 no.4
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• pp.255-262
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• 2006

본 연구의 목적은 건축프로젝트에 있어서 디자인분야 개선요소의 특성을 파악하는데 있다. 기존 연구에서 디자인요소 중 열여덟 개의 개선요소들이 정리되었으며 이러한 개선요소들을 중심으로 건설관계자들의 설문조사를 통하여 주요도를 결정하였다. 연구결과는 각 파트별 협조가 가장 큰 개선요소로서 나타났으며 경영개선의 리더십, 팀워크, 시공능력 순으로 나타났다. 또한 각 그룹별 공통적인 개선요소로서 설계사무소와 시공자와의 원활한 의사소통이 상위개선요소에 지적되었다. 디자인에 있어서 초기 공사와 완공 후 유지관리를 반영한 시공성에 중점을 둔 설계에 대한 관심도 크게 나타났다.

• KOREAN POULTRY JOURNAL
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• v.19 no.4 s.210
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• pp.50-54
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• 1987

산란계 사육에 있어 최대의 관심사는 뭐니뭐니 해도 산란율로 귀착된다. 육성계의 사양관리나 점등관리, 질병관리 등의 모든 것이 결국은 산란을 시키기 위한 준비이며, 훌륭한 산란계로 육성시키지 못하면 그동안의 숱한 노력이나 막대한 경비를 회수할 수 없게 된다. 따라서 무엇보다도 육성기의 사양관리가 채란업의 성패를 좌우하게 된다. 육성기의 사양관리에는 여러가지 고려되어야 할 중요한 점이 있지만, 그중에서도 체중과 정강이 길이 및 균일성은 그 계군의 능력발휘에 있어 가장 중요한 요소이므로 중점적으로 논의해 보도록 한다.

• Korean Journal of Construction Engineering and Management
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• v.10 no.1
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• pp.91-101
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• 2009

The factors of uncertainty such as work delay could cause many problems, for example, increase of construction cost and terms of work, and the deterioration of quality. Because of these, the uncertainty risk is regarded as an important management factor to obtain the success of construction project. So, the systematic management plan about the uncertainty factors is needed because it plays an important role in the completion of entire project. And also analysis of some factors which can cause the work delay can be one way of improving construction project's certainty and making it competitive. In this reason, we have to make an effort to set a priority based on analysis of quantitatively numerical value about work delay factors to manage them effectively. Thus, this study aims to suggest the basic data for the effective management and prevention of work delay in steel-frame work which is progressive actively now, along with increasing of demand of high-rise buildings by analyzing each reasons of work delay factors and also by suggesting important management factors that are coded according to each construction work using FMEA method which could give a data about the importance of work delay factors through quantitatively numerical value.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.496-501
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• 2006

Work delay is the one of facts that make the reliability of construction business decrease. Building a causal classification system of work delay and deducing the managemental item for it gives a great competition to the construction industry. It is, however, so rare to study about work delay so far. Therefore, this research analyzed a questionnaire, which is focussing on the public apartment construction, to look into the causal root factors and deduce the work delay factors. Finally, we suggest a major managing point to remove effectively the work delay factors.

• Journal of the Korea Institute of Building Construction
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• v.22 no.1
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• pp.91-102
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• 2022

Many industries are being severely damaged by COVID-19, a respiratory infection that has recently been prevalent around the world. In particular, for workers in the construction industry, it is impossible to work from home, and if an outbreak on a construction site is confirmed, it can lead to great damage. Accordingly, the government has drafted 「Guidelines for Response to Construction Sites for Prevention and Spread of COVID-19」. In addition, domestic and foreign research about COVID-19 in the field of construction sites is being actively conducted. However, Korea has lacked studies on the effectiveness of the countermeasures in place at construction sites, or that reflect the opinions of construction site workers. Therefore, this study conducted a survey of construction site workers by dividing the construction of the COVID-19 quarantine management system and response plan into on-site management and social management. Through the AHP/IPA analysis, it was found that among social management, 'infectious disease management system and cooperation system with related institutions' and 'reduction of working hours' are areas with high importance but low satisfaction. After that, the causes of the two items were analyzed and related countermeasures were suggested. The results of this study will be able to contribute to the improvement of the quarantine management system and response plan at construction sites, and to minimize the damage to the construction industry related to COVID-19.

• Journal of the Korea Institute of Building Construction
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• v.10 no.4
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• pp.83-93
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• 2010

With construction projects continuously becoming more massive and complex, risk factors have been consistently increasing. To achieve a successful project, it is very important to identify and cope with such risk factors. Therefore, the purpose of this study is to suggest plans of reducing risk, not only for describing the drafting process for construction planning but also for systematically organizing constraints and risk factors in earth work, foundation work and reinforced concrete construction. To achieve these objectives, this study 1) analyzes previous theories about risk classification structure, 2) performs a case study of an actual project to embody the problems of safety management by analyzing the results of an interview with a construction engineer. In conclusion, the following factors were systematically organized: 1) characteristics of construction site (purpose, structure, floor, etc.); 2) the actual application conditions of the main construction methods; 3) the relationship between constraints and risk factors.

• Journal of Korean Tunnelling and Underground Space Association
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• v.19 no.3
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• pp.489-501
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• 2017

The collapse accidents during a open ground excavation in urban areas not only lead to human injuries and material damages in the construction site, but also lead to road sinks and damages to the adjacent facilities due to settlement of ground around the construction site. Therefore, during a open ground excavation in the urban areas, it is necessary to thoroughly prepare for prevention of collapse accidents, and consider whole construction stage such as planning, design and construction. In this study, the priorities to be managed mainly were obtained in order to prevent collapse accidents during a open ground excavation. After analyzing results from past accidents cases for open ground excavations, priorities were evaluated regarding collapse-inducing elements using the Delphi technique which is a decision-making method by consensus among experts. As a result, insufficient groundwater treatment, bad geotechnical investigation and instability on construction, etc. were obtained as priorities for prevention of collapse accidents.