• 산업경영시스템학회지
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• 제21권47호
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• pp.139-148
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• 1998

CALS IDB (Integrated database) is one of core technologies that embodies the principle of a shared data environment for the life cycle related data in CALS environment. In this study, to successfully share the data, we first classified the data types employed in the CALS environment and then discussed the data heterogeneity issued in data integration processes. To effectively solve this heterogeneity, we proposed the federated database systems as a candidate system especially focusing on the major functions and core element technologies.

• 한국전자거래학회지
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• 제2권2호
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• pp.155-169
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• 1997

The CALS integrated database is a key information technology in which CALS implements an information sharing system to enable digital data transfers for technical and non-technical information in distributed and heterogeneous environments. Such heterogeneously distributed CALS information needs to be systematically incorporated so that it can provide a global data view for CALS users. In this paper, we investigated the technologies of CALS integrated database, and proposed a system prototype to implement an integrated data environment (IDE) utilizing distributed object environments CORBA (Common Object Request Broker Architecture).

• 대한치과교정학회지
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• 제41권2호
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• pp.138-146
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• 2011

The purpose of this article is to introduce a new virtual orthodontic treatment (VOT) system, which can be used to construct three-dimensional (3D) virtual models, establish a 3D virtual setup, enable the placement of the virtual brackets at the predetermined position, and fabricate the transfer jig with a customized bracket base for indirect bonding (IDB) using the stereolithographic technique. A 26-year-old woman presented with anterior openbite, crowding in the upper and lower arches, and narrow and tapered upper arch, despite having an acceptable profile and balanced facial proportion. The treatment plan was rapid palatal expansion (RPE) without extraction. After 10 days of RPE, sufficient space was obtained for decrowding. After a 10-week retention period, accurate pretreatment plaster models were obtained using silicone rubber impression. IDB was performed according to the protocol of the VOT system. Crowding of the upper and lower arches was effectively resolved, and anterior openbite was corrected to normal overbite. Superimposition of the 3D virtual setup models (3D-VSM) and post-treatment 3D virtual models showed that the latter deviated only slightly from the former. Thus, the use of the VOT system helped obtain an acceptable outcome in this case of mild crowding treated without extraction. More cases should be treated using this system, and the pre- and post-treatment virtual models should be compared to obtain feedback regarding the procedure; this will support doctors and dental laboratory technicians during the learning curve.

• 월간포장계
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• 통권297호
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• pp.102-110
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• 2018

한국환경포장진흥원(원장 전명화)이 친환경 포장기술 및 녹색 포장디자인 개발을 촉진하기 위해 매년 개최하고 있는 제7회 그린패키징 공모전 시상식을 지난해 12월 12일 쉐라톤서울팔래스호텔에서 개최했다. 친환경 포장을 통한 자원 절약과 녹색성장, 녹색소비 생활에 기여하는 것을 목적으로 하는 그린패키징 공모전은 올해 일반 부분 13개 기업에서 15점, 학생 부문 15개교에서108점등 총 113점의 작품이 출품됐다. 일반부문에서는 대상인 환경부 장관상은 (주)풀무원과 CJ제일제당이 수상했고, 최우수상인 한국환경포장진흥원 이사장상은 현진제업과 LG전자가 수상했다. 우수상인 한국환경포장진흥원 원장상은 LG생활건강과 티레모, 특선은(주)피부다움, 휴면IDB, (주)풀무원 등이 수상했다. 학생부문에서는 강원대학교 이재성 학생이 대상을 수상하는 등 총 18점 작품이 수상을 했다. 다음에 제7회 그린패키징 공모전의 수상작들을 살펴본다.

• Journal of Plant Biotechnology
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• 제42권2호
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• pp.88-92
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• 2015

카사바는 열대와 아열대지역 뿌리작물로서 중요한 식량자원일 뿐만 아니라 동물 사료, 전분, 바이오에탄올 등 다양한 산업소재로서 이용이 가능하다. 그러나 카사바의 산업적 중요성에 비해 형질전환기술을 이용한 신품종 개발은 아직까지 제한적이다. 본 연구에서는 인도네시아 IDB사가 개발한 다수확 카사바 품종을 이용하여 영양강화 및 환경스트레스에 저항성을 향상시킨 카사바를 개발하기 위하여 체세포배를 이용한 식물체 재분화시스템을 확립하였다. 카로티노이드 축적에 관련된 IbOr 유전자를 체세포배를 이용한 Agrobacterium 매개방법으로 카사바에 형질전환하였다. gDNA PCR과 RT-PCR을 통해 19개의 형질전환식물체를 성공적으로 확보하였다. 향후 카로티노이드 함량분석, 환경스트레스 내성분석 등을 통하여 IbOr 카사바 식물체의 농업적 유용성을 검정할 예정이다.

• Earthquakes and Structures
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• 제13권2호
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• pp.119-130
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• 2017

This paper presents a numerical investigation on the seismic behavior of isolated bridges with supplemental viscous damping. Usually very large displacements make seismic isolation an unfeasible solution due to boundary conditions, especially in case of existing bridges or high risk seismic regions. First, a suggested optimal design procedure is introduced, then seismic performance of three real bridges with different isolation systems and damping levels is investigated. Each bridge is studied in four different configurations: simply supported (SSB), isolated with 10% damping (IB), isolated with 30% damping (LRB) and isolated with optimal supplemental damping ratio (IDB). Two of the case studies are investigated under spectrum compatible far-field ground motions, while the third one is subjected to near-fault strong motions. With respect to different design strategies proposed by other authors, results of the analysis demonstrated that an isolated bridge equipped with HDLRBs and a total equivalent damping ratio of 70% represents a very effective design solution. Thanks to confirmed effective performance in terms of base shear mitigation and displacement reduction under both far field and near fault ground motions, as well as for both simply supported and continuous bridges, the suggested control system provides robustness and reliability in terms of seismic performance also resulting cost effective.