• Journal of Korean Society of Industrial and Systems Engineering
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• v.44 no.4
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• pp.43-52
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• 2021

In weapon assignment studies to defend against threats such as ballistic missiles and long range artillery, threat assessment was partially lacking in analysis of various threat attributes, and considering the threat characteristics of warheads, which are difficult to judge in the early flight stages, it is very important to apply more reliable optimal solutions than approximate solution using LP model, Meta heuristics Genetic Algorithm, Tabu search and Particle swarm optimization etc. Our studies suggest Generic Rule based threat evaluation and weapon assignment algorithm in the basis of various attributes of threats. First job of studies analyzes information on Various attributes such as the type of target, Flight trajectory and flight time, range and intercept altitude of the intercept system, etc. Second job of studies propose Rule based threat evaluation and weapon assignment algorithm were applied to obtain a more reliable solution by reflection the importance of the interception system. It analyzes ballistic missiles and long-range artillery was assigned to multiple intercept system by real time threat assessment reflecting various threat information. The results of this study are provided reliable solution for Weapon Assignment problem as well as considered to be applicable to establishing a missile and long range artillery defense system.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2003.05a
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• pp.572-574
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• 2003

현대사회의 소비자는 극도의 편리성을 추구하는 경향이 있다. 식품업계에서는 이를 충족시키기 위하여 다양한 형태의 인스턴트 식품을 개발하고 있으며, 이에 따라 식품의 포장용기도 매우 다양해지고, 일회용 식품포장용기의 사용도 급증하고 있다. 일회용 식품포장용기는 그 재질에 따라서 유해물질이 용출되거나 갖가지 형태로 소비자의 건강을 위협하고 있다.(중략)

• 환경사랑
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• s.63
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• pp.12-13
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• 2012

EUMEPS(유럽연합 EPS생산자기구) 뉴스레터에 소개 된 EPS 포장 관련 LCA 자료를 소개한다. 생선포장상자에 관한 전과정평가(LCA)는 경쟁 자재 산업이 EPS 포장 산업을 위협한 것에 대한 대응책이었다. TV 포장에 관한 LCA 연구는 2001년부터의 이전 연구의 업데이트이다.

• Proceedings of the Korean Information Science Society Conference
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• 2007.10a
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• pp.118-119
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• 2007

• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.5
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• pp.1257-1268
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• 2015

Multi-functional devices was originally an equipment performing image processing, but function transmitting image data digitized by combining fax function and function of network are added and it was rapidly developed. Also, functions of internet application, application expansion, remote sharing and image treatment were added to multi-functional devices. But, multi-functional devices can cause security vulnerability such as data exposure, eavesdropping, etc. because of the threatening by network connection. Therefore, common criteria of multi-functional devices are necessary, but there is no protection profile for multi-functional devices now. Therefore, concrete standards of evaluation are not applied to evaluate secure for products, so it was difficult to maintain uniformity of evaluation quality. Therefore, this paper developed protection profile for multi-functional devices based on common criteria of evaluation so as to analyze threats of multi-functional devices and use secure multi-functional devices.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.31 no.6
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• pp.1291-1307
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• 2021

State-sponsored cyberattacks have increased significantly and threaten national security in recent years. State-sponsored cyberattacks are often more sophisticated and destructive that attacks by individuals and private groups because of the concentration of manpower and resources. So major countries including the United States and the United Kingdom, as well as international organizations such as the EU and OECD, are recommending proportional response measures against cyberattacks. The Republic of Korea(ROK) is also trying to change its will to secure cyberattack deterrence and prepare active response through the 「National Cybersecurity Strategy 2019」. However, the ROK is not equipped with an adequate methodology to assess the severity of cyberattacks nor measures for proportional response to such attacks. In this paper, we propose a Cyber Attack Severity Assessment(CASA) methodology that can assess the scale and impact of damage to prepare external response threshold for cyberattacks at the government-level and to enable proportional responses when responding.

• 발명특허
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• v.31 no.6 s.360
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• pp.40-43
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• 2006

무분별한 벌목으로 숲이 점차 사라지고 있다. 숲이 사라지면 지구를 보호하는 오존층도 사라지게 되고 수억 년 동안 인류가 누려온 윤택한 자연의 생태계도 위협을 받게 된다. 그리고 인류의 삶 역시 위험에 빠지게 됨은 자명한 일이다. 이처럼 환경 파괴의 문제가 대두됨에 따라 각국에서는 친환경 대체재에 대한 관심이 높아지고 있는 것이 현실이다. (주)에코인조목재에서는 폐플라스틱을 활용한 인조 목재의 개발로 환경을 지키는 것은 물론 기존의 수입 목재를 대체하여 외화지출을 절감하는 효과를 거두었다. (주)에코인조목재에서 개발한 PE 인조 목재는 가두리양식용 기자재로 활용하게 되는데 이는 국토의 삼면이 바다인 대한민국에서 추구하는 해양 수산업 국가 위상에 걸맞는 제품으로 평가받고 있다.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2002.05a
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• pp.369-374
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• 2002

2002년 7월 1일부터 시행되는 제조물 책임법은 기업에 많은 영향을 끼칠 것으로 예상된다. 대외적으로는 소비자들의 클레임이나 분쟁, 혹은 소송에 대한 대응이 불가피할 것이며, 대내적으로는 제조공정의 품질 및 문서관리의 강화 요구에 대응하지 않으면 안될 것이다. 결과적으로 결함이 있는 제품의 출하 및 판매는 자칫 기업의 존폐 자체를 위협할 수 있기 때문에, 기업은 제품의 안전성을 평가하는 데 배전의 노력을 기울이고 있다.(중략)

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.802-803
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• 2007

전력산업의 구조개편에 따라 현재 전력시스템은 안전도의 위협수준에 가깝게 운영되어지도록 강요받고 있다. 이러한 시대적 흐름에 의해 안전도(security)해석에 대한 보다 빠르고 정확한 연구가 중요시 되고 있다. 본 연구는 전력시스템의 안전도 해석에 있어 상정사고(contingency)를 고려할 때 클러스터링 기법을 이용한 송전 네트워크의 축약 알고리즘을 제안한다. 또한 PC 클러스터 시스템을 이용한 병렬처리기법을 이용한 상정사고의 분할연산을 수행하고자 한다. IEEE 39 모선시스템을 통해 제안된 알고리즘을 평가할 것이다.

• Korean Journal of Ichthyology
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• v.32 no.1
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• pp.1-7
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• 2020

Investigations of distribution status and extinction threat evaluation of the Korean endemic species, Iksookimia yongdokensis were undertaken from 2017 to 2018. Among the 22 streams and 97 sampling sites investigated during the study period, samples of I. yongdokensis were collected from 9 streams at 37 sites (from Daejongcheon Stream of Gyeongju-si to Songcheon Stream of Yeongdeok-gun). The appearance of I. yongdokensis was relatively common in streams such as Hyeongsangang River (15 stations), Yeongdeok Oshipcheon Stream (4 stations), Gokgangcheon Stream (4 stations), Chuksancheon Stream (3 stations) and Daejongcheon Stream (3 stations). The main habitat of I. yongdokensis was in pools on flat-land in streams of clean water with slow velocity, and with pebble, gravel and sand bottoms. Previous records of the appearance of I. yongdokensis, indicate they were first seen at seven stations including Jangsacheon Stream, but they were not present in Songcheon Stream. Compared to our results there is evidence as noted for a 38.9% reduction in occupancy within 3 generations (10.5 years), and a decline inhabitat quality. Therefore, I. yongdokensis is now considered vulnerable (VU A2ace) based on the IUCN Red List categories and criteria. The main reasons for the decline were assumed to be dry weathering in the river, the introduction and diffusion of exotic fish species Micropterus salmoides, and river refurbishment project.