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박준구,최병돈,김승철,염곤,Park, Joon-Koo,Choi, Boung-Don,Kim, Seung-Chul,Ryeom, Kon 환경독성보건학회 1993 환경독성보건학회지 Vol.8 No.3
An Actinomycete strain isolated from Mt. Dea-Dun had a strong antifungal activity. The culture brith produced by isolated strain showed only antifungal activity against fungi with the exception of yeast and bacteria. It was heat stable, dissolved in ehtylacetate. The concentrated antifungal agent showed cytotoxicity against HEP-2 and HeLa as tumor cell line, and showed weak cytotoxicity against VERO 36 as normal cell line. Morphological and physiological characteristics were tested with isolated strain. The spore color of isolated strain was gray. It had a short chain and produced brown colored lytic substance in yeast extract-malt agar. The cell wall of isolated strain was composed of meso-DAP, and we suggested it as genus Actinomadura. In the existing of chemical inhibitor, isolated strain grew on the condition of 0.0001% crystal violet, 0.1% phenol, 0.01% sodium azide and 10% sodium chloride. Carbon utilization of isolated strain was shown that glucose, sucrose, manitol and sodium citrate were well utilized.
설계 민감도법을 이용한 유도 전기장 분포 제어를 위한 철심구조 최적화 연구
朴俊枸(Park Joon Goo) 대한전기학회 2006 전기학회논문지 D Vol.55 No.8
An optimized iron core structure of stimulating coil are presented in order to control the induced electric field distribution using the Continuum Design Sensitivity Analysis (CDSA) combined with a commercially available generalized finite element code (OPERA). The results show that a Figure-Of-Eight (FOE) coil as well as a circular coil with the proposed iron core structure can increase induced electric field intensity by more than two times and make better field localization, compared with those of existing stimulation coil with a air core. After considering manufacturing constraints, a practical iron core structure based on the proposed optimized one is proposed and its performance is analyzed.
박준구(Park Jun Ku),조우석(Cho Woo Sug),노명종(Noh Myoung Jong),송낙현(Song Nak Hyeon),김민철(Kim Min Chul) 대한공간정보학회 2008 대한공간정보학회지 Vol.16 No.4
우리나라는 2004년 시범사업을 시작으로 현재까지 10개 지자체에서 3차원 국토공간정보를 제작완료 하였으며, 추가적으로 많은 지자체에서 구축 중에 있다. 현 3차원 국토공간정보 구축지침은 2005년 3차원 공간정보구축 시범사업의 연구결과를 기반으로 2006년 구축방법론과 관련 규정을 작성하였다. 그러나 지자체 3차원 국토공간정보 구축에 현 지침의 적용 결과, 3차원 공간정보 제작방법, 표현 정확도 등에서 많은 문제점이 대두되고 있다. 본 연구는 무결점 3차원 국토공간정보 구축을 위하여 기 수립된 구축지침의 문제점을 분석ㆍ도출하여 3차원 국토공간정보 구축항목의 재정립 및 제작방법의 표준화된 기준을 제시하는 것을 목적으로 수행하였다. 3차원 국토공간정보 개선방안은 표준화된 양질의 3차원 국토공간정보의 구축 및 활용에 기여할 수 있을 것이라 사료된다. In Korea, currently 10 local governments have completed the construction of the 3D Land Geospatial Information, since the pilot project started in 2004 and many other local governments are additionally constructing the 3D Land Geospatial Information. Technical Guidance for the 3D Land Geospatial Information has made out the construction methodology and concept of the ordinances in 2006 by the basis of the research results of the pilot project for the 3D Geospatial Information construction in 2005. But the result that applied the existing 3D Land Geospatial Information of the local governments, many problems rearing up on the methods and expression accuracy of the 3D Land Geospatial Information. This research analyzed and derived problems of established guideline for the zero-defects construction of the 3D Land Geospatial Information and it is aim at the present standardized criterion of the reestablished and method of the 3D Geospatial Information construction items. Improvement scheme of the 3D Land Geospatial Information is considered to be contribute to the standardized good quality of 3D Land Geospatial Information construction and its application.
GPS 반송파 위상변화율을 이용한 SDINS/GPS 복합항법 필터 구성
박준구(Joon-Goo Park) 한국항공우주학회 2006 韓國航空宇宙學會誌 Vol.34 No.11
SDINS 운항중 정렬에 적용 가능한 GPS 반송파 위상변화율 측정 모델을 유도하여 새로운 SDINS/GPS 복합항법 시스템 구성 방법을 제안한다. 제안된 SDINS/GPS 복합항법 필터의 성능 분석을 공분산 해석기법을 이용하여 수행하고 이의 결과를 실제 차량 실험을 통하여 검증한다. 제안된 결합기법은 2개 이상의 안테나를 갖는 SDINS/GPS 결합시스템에 적용가능하며 기수각 추정에 직접적으로 연계된 GPS 측정치를 생성함으로써 빠른 SDINS의 기수각 추정을 가능하게 함으로써 SDINS/GPS의 항법 성능을 향상시키게 된다. As an application of SDINS/GPS integration for its synergistic results, the SDINS alignments utilizing GPS carrier phase rate measurements. A measurement model of GPS carrier phase rate is derived in order to be used with SDINS alignment process. For in-flight alignment, the performance of the suggested SDINS/GPS integration method is analyzed using the covariance analysis and its results are confirmed by those of van test. Consequently, it is shown that all states of the SDINS integrated system by utilizing GPS carrier phase rate measurements can be estimated more efficiently than a general SDINS/GPS during in-flight alignment