• Journal of the Korean Professional Engineers Association
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• v.42 no.6
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• pp.53-57
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• 2009

Antenna Tracking System has been required core technology with special tracking algorithm, and it can be achieved by program tracking, step tracking, optracking, and monopulse tracking as well. Depend on tracking requirement we might be able to apply eligible tracking method in accordance with Geostationary and Inclined Orbit Satellite. Further, we should deeply consider two important factors in order to act up to customer expectation in quality and system performance including competitive price therefore we need maximized endeavor to upgrade not only tracking system performance, but reduction of product through engineering skill and R&D investment.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04b
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• pp.694-696
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• 2002

본 논문에서는 초 .중등학교의 교육정보화 시설 및 장비관리의 효율성 제고방안을 제안하였다. 이를 위해 CAD 도면의 BOM 정보를 활용한 학교시설관리와 업무처리 방안을 모색하였다. 먼저, BOM 기능을 활용하여 시설 장비 객체와 관리정보를 함께 기록한 CAD 도민을 얻고, 여기에서 관리대상 객체에 대한 속성을 추출하여 관리정보 DB를 구축하였다. 이를 토대로 구현한 시선관리시스템에서는 사용자가 검색조건을 부여하여 필요한 관리정보를 산출할 수 있도록 하였다. 이 시스템을 통해 효율적이고 통합적인 학교시설 . 장비관리가 가능함을 보였다.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04b
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• pp.553-555
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• 2002

초.중등학교에서 활용중인 종합정보관리 시스템 중에서 시설.장비관리 행정시스템은 교육청 단위로의 DB 통합과 전국단위 교육행정정보시스템의 구축, 현장 적합도와 사용자 편이성 미흡 등의 이유로 사용이 중단되어 있다. 이와 같은 문제점을 해결하기 위해서는 시스템의 재구축 또는 개정작업이 수반된다. 이러한 개정의 한 방안으로 워크플로우 시스템 도임을 검토하였다. 워크플로우 시스템을 시설.장비관리 행정시스템에 도입하여 운영함으로써 학교종합정보관리 시스템이 업무변화에 대하여 탄력적으로 개선될 수 있음을 보였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.05a
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• pp.1-3
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• 2023

향후 변화될 해양 4차 산업시대에 대응하고 상호 정보 공유를 위해 외부 시스템과 연계할 수 있는 기반환경 마련이 필요한 바 관제센터에서 수집되는 정보를 활용하기 위해서는 관제정보 관리 및 공유 체계가 필요하다. 하지만 정보의 보존 기간이 짧고 접근에 제약이 많아 기술개발에 활용될 관제 정보의 빅데이터화가 어렵다. 또한 정보를 관제 센터 내 독립적으로 보관하고 있어 연구 개발 목적의 접근이 쉽지 않다. 본 연구에서는 민간 클라우드를 활용한 관제 정보 관리 및 공유 체계 방안을 살펴보았다.

• Journal of the Korean GEO-environmental Society
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• v.13 no.12
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• pp.43-49
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• 2012

Noise measurements were performed by distance for major construction equipment. especially, For construction equipment that large width of variations is depending on the type of work, noise measurements were performed by the detail type of work. For a time of quiescent and construction, "A" compensation equivalent noise level (Leq) were measured. Most of the construction equipment and the characteristics of the point source appears to be similar in analyzed noise measurement results.

• Proceedings of the Korean Geotechical Society Conference
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• 2000.03b
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• pp.101-108
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• 2000

In this study, an expert system was developed to predict the safety of tunnel and choose proper tunnel reinforcement system using fuzzy quantification theory and fuzzy inference rule based on tunnel information database. The expert system developed in this study have two main parts named pre-module and post-module. Pre-module decides tunnel information imput items based on the tunnel face mapping information which can be easily obtained in-situ site. Then, using fuzzy quantification theory II, fuzzy membership function is composed and tunnel safety level is inferred through this membership function. The comparison result between the predicted reinforcement system level and measured ones was very similar. In-situ data were obtained in three tunnel sites including subway tunnel under Han river, This system will be very helpful to make the most of in-situ data and suggest proper applicability of tunnel reinforcement system developing more resonable tunnel support method from dependance of some experienced experts for the absent of guide.

• Journal of Physiology & Pathology in Korean Medicine
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• v.17 no.6
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• pp.1409-1411
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• 2003

The indirect carbonization without solvent for the extraction of the natural undiluted solution has been studied. The following results have been obtained. 1. The traditional wood undiluted solution distillation can be embodied with the indirect carbonization without solvent of the airtight space. The system of the indirect carbonization without solvent is the indirect dry distillation apparatus. It is composed of the high-temperature stove, the exterior can, material bag, interior can, collect water can and air-fan.

• Tunnel and Underground Space
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• v.7 no.4
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• pp.299-309
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• 1997

Soil and rock improvement and reinforcement techniques are applied to achieve safe tunnel excavation in difficult geological conditions. The Umbrella Arch Method(UAM), one of the auxiliary techniques, is used to reduce ground permeability and improve stabtility of the tunnel by inserting a series of steel pipes into ground around the crown inclined to the longitudinal axis of the tunnel. Additionally, multi-step grouting is added through the steel pipes. UAM combines the advantages of a modern forepoling system with the grouting injection method. This technique has been applied in subway, road and utility tunneling sites for the last few years in Korea. This paper presents the results of analysis of the case studies on ground movements associated with UAM used in the Seoul Subway line 5 constructon site. Improvement of tunnel stability and decrease of ground settlement expected with pipe insertion are also discussed. Finally, the method to minimize ground settlements caused by NATM tunnelling are suggested.

• Korean Journal of Head & Neck Oncology
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• v.29 no.1
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• pp.22-25
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• 2013

Angiolymphoid hyperplasia with eosinophilia(Kimura's disease) is a relatively uncommon chronic benign disorder of unknown etiology, predominantly in the head and neck region and associated with lymphadenopathy or salivary gland enlargement. The treatment options are still controversial including medical therapy, surgery, and radiation. Kimura's disease of bilateral postauricular involvement has rarely been reported. We report a male patient with sequentially developed Kimura's disease involving the bilateral postauricular region and was treated by combined surgical excision and steroid therapy.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11a
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• pp.261-264
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• 2003

초.중등학교에서는 교육행정업무의 효율성을 위하여 학교정보관리시스템을 활용하고있다. 본 논문에서는 NEIS가 학사업무 및 교육행정업무 뿐만 아니라, 전반적인 교육활동을 효과적으로 수행할 수 있도록 미흡한 기능에 대한 개선방안을 모색하였다. 먼저, 새로 도입한 교육행정정보시스템(NEIS)과 기존의 종합정보관리시스템(SIMS, CS)의 변화된 기능을 파악해보고, NEIS의 효율성과 현장 적합성을 가늠해보았다. 그 결과, 학적관리, 성적관리, 각종 교육통계 및 보고업무, 대민 서비스 등, 기능이 개선된 반면, 보건관리, 교수학습 지원, 그룹웨어 기능의 지원이 미흡하였다. 특히, NEIS가 교육활동에 효과적으로 활용되기 위해서는 미흡한 교수학습과 그룹웨어 기능의 개선이 시급함을 알았다.