• 한국CDE학회논문집
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• 제20권2호
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• pp.145-158
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• 2015

ISO 15926 is an international standard for the sharing and integration of plant lifecycle information. Plant design data consist of logical configuration, equipment specifications, 2D piping and instrument diagrams (P&IDs), and 3D plant models (shape data). Although 3D computer-aided design (CAD) data is very important data across the plant lifecycle, few studies on the exchange of 3D CAD data using ISO 15926 have been conducted so far. For this, we analyze information requirements regarding plant 3D design in the process industry. Based on the analysis, ISO 15926 templates are defined for the representation of constructive solid geometry (CSG) - based 3D design data. Since system environments for 3D CAD modeling and Semantic Web technologies are different from each other, we present system architecture for processing and visualizing plant 3D design data in the Web Ontology Language (OWL) format. Through the visualization test of ISO 15926-based 3D design data for equipment with a prototype system, feasibility of the proposed method is verified.

• Journal of Plant Biotechnology
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• 제43권4호
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• pp.444-449
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• 2016

Deep rooting, which enables plants to extract water from greater soil depths, is a critical strategy for improving plant survival under water-deficient conditions. However, as it is difficult to observe intact root systems belowground, several techniques have been developed to screen deep- and shallow-rooting phenotypes in rice. Here, we introduce a simple and convenient method for deep- and shallow-rooting phenotyping using a unique combination of sand, soil, and plastic mesh netting. Vandana, a drought-tolerant rice variety, and Dongjin, a Korean japonica rice variety, were used to analyze root phenotypes. No significant differences in root length were observed in rice grown under irrigated conditions regardless of net position, whereas roots were significantly longer, and ratio of deep root (RDR) values were significantly higher in Vandana rice grown under semi-drought conditions. In summary, this simple and useful method represents a low-cost means of phenotyping the roots of rice and other crops grown in various-sized pots and at multiple plant growth stages.

• Biotechnology and Bioprocess Engineering:BBE
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• 제11권1호
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• pp.38-42
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• 2006

When whole cells are subjected to pyrolysis gas chromatography/mass spectrometry (Py-GC/MS) analysis, it provides biochemical profiles containing overlapping signals of the majority of compounds. To determine marker compounds that discriminate embryogenic calluses from nonembryogenic calluses, samples of embryogenic and nonembryogenic calluses of five higher plant species were subjected to Py-GC/MS. Genetic programming of Py-GC/MS data was able to discriminate embryogenic calluses from nonembryogenic calluses. The content ratio of 5-meyhyl-2-furancarboxaldehyde and 5-(hydroxymethyl)-2-furancarboxaldehyde was greater in nonembryogenic calluses than in embryogenic calluses. However, the content ratio of phenol, p-cresol, and $^1H-indole$ in embryogenic calluses was 1.2 to 2.4 times greater than the ratio in nonembryogenic calluses. These pyrolysates seem to be derived from the components of the cell walls, which suggests that differences in cell wall components or changes in the architecture of the cell wall playa crucial role in determining the embryogenic competence of calluses.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2005년도 춘계 학술발표대회
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• pp.88-89
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• 2005

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1993년도 한국자동제어학술회의논문집(국내학술편); Seoul National University, Seoul; 20-22 Oct. 1993
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• pp.348-352
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• 1993

A hybrid system contains both continuous variables and discrete event components. This paper presents the new control architecture for hybrid systems, which consists of a conventional controller for the continuous-time variable of the system, a supervisor for discrete event components of the system, and an interface for link between the controller and the plant. The presented controller is suitable for the system operating at the different operating conditions or for system being changing the plant model by enabling and disabling discrete events. This paper shows that the presented controller is better than the conventional controller.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 하계학술대회 논문집 G
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• pp.2324-2326
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• 1998

Plant controller using VME bus is developed. This controller is a PLC designed to control up to 768 I/O units of POSFA PLC which has been developed already by POSCON. In many programming aspects, it adopts IEC 1131, international standard of PLC programming to keep up with international trends. A system software and a controller architecture including CPU board, DSP board and bus extension board are developed to support the IEC 1131, and becomes a base of E.I. controller being developed now.

• 한국조경학회지
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• 제52권3호
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• pp.46-58
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• 2024

본 연구의 목적은 반려식물 키트 산업의 현황을 파악하고, 산업 활성화를 위한 지원 정책 우선순위를 알아보는 것이다. SWOT 분석을 통해 반려식물 키트 산업의 현황을 진단하였고, 산업 활성화를 위한 지원 정책 우선순위 파악을 위해 반려식물 키트 산업 종사자를 대상으로 계층분석을 활용하였다. SWOT 분석 결과, SO 전략으로는 정부의 지원 정책을 활용하여 마케팅을 강화하고 친환경 이미지와 DIY 키트를 결합한 제품을 개발하는 것이며, WO 전략으로는 시장 인지도를 높이기 위한 광고 캠페인을 전개하고 유통망 확장을 위한 전략적 파트너십을 구축하는 것으로 나타났다. 또한, ST 전략으로는 경제 불확실성에 대응하여 가격 경쟁력을 강화하고 경쟁 제품 대비 차별화된 고유 가치를 제안하는 것이며, WT 전략으로는 비용 절감을 위한 생산 공정을 개선하고 소비자 피드백을 반영하여 제품품질을 개선하는 것으로 나타났다. AHP 분석 결과 총 3개의 상위항목과 12개의 하위항목으로 구성한 평가 항목을 도출하였고, 전문가 설문을 통해 총 17부의 데이터를 수집하였다. 분석 결과, '진입 단계' (0.482), '활성화 단계' (0.397), '고도화 단계' (0.121) 순의 중요도가 도출되었다. 또한 '간담회 개최'(0.181)가 가장 중요한 하위항목으로 나타났으며, '키트 개발 지원'(0.020)은 상대적으로 낮은 중요도를 보였다. 반려식물 키트 산업은 정원 산업 발전을 위한 초기 단계 사업으로 적절한 정책적 인큐베이팅은 정원 산업 활성화에 도움을 줄 수 있다. 본 연구의 결과는 반려식물 키트 산업 활성화를 위한 산업계의 수요에 대한 기초 정보를 제공할 수 있다.

• 한국환경과학회지
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• 제27권4호
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• pp.267-274
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• 2018

With rapid growth of the one-person households, this study focused on the psychological effects of pet plant gardening, one of the new trend of gardening among them. To clarify the psychological influences of pet plant gardening, 30 university students conducted gardening of pet plants in 90 days and the psychological effects was measured by the standardization personality inventory test before and after gardening. As results, pet plant gardening showed the effects of decreasing depression feeling of all participants, and the effects was significant in female than male. Pet plants gardening led to change females' personality more actively and more leadingly. Therefore, this data verified the positive effects in psychologically and induced personality showed pet plants gardening induced the positive effects the aspects of psychology and personality.

• Journal of Plant Biotechnology
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• 제7권3호
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• pp.169-174
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• 2005

The optimal culture conditions were studied for plant regeneration from mesophyll protoplasts of Solanum sisymbriifolium. Axenic seedlings of S. sisymbriifolium were used as a explant for protoplast culture. Many viable protoplasts were isolated by incubating leaf slices in an enzyme solution containing 0.25% Meicerase and 0.05% Macerozyme for 16 hr at $25^{\circ}C$ without shaking. Protoplast density of $5.0{\times}10^4\;ml^{-1}$ in Kao medium containing 5.0 mg/L NAA, 1.0 mg/L 2,4-D and 1.0 mg/L BA was optimal for colony formation. Most colonies were formed when protoplasts were cultured at $25^{\circ}C$ after initial culture at $30^{\circ}C$ for one week. On the MS agar medium with 1.0 mg/L zeatin, 38.4% of protoplast-derived calli differentiated shoots. These shoots rooted on 1/2MS medium with 5.0 g/L sucrose and 2.5 g/L gellan gum, and developed into whole plants.

• 한국가구학회지
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• 제27권1호
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• pp.59-68
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• 2016

The Industrial/Technological Cultural Properties are being protected, the rest facing with demolition and damages. In order to better cope with such situation, Korea has officially introduced the Registered Cultural Properties System since 2001 and began acknowledging the historical values of industrial buildings as modern cultural properties. In the Nordrhein-Westfalen, Germany, there are approximately 3,500 industrial buildings under the cultural asset protection and management not only in the Ruhr-region but also state-wide. Among these, this case study focuses on the Hansa Coking Plant, a large-scale Revitalization project to rehabilitate the old industrial complexes and facility buildings that have been shut down on December 15, 1992. Purpose of this study is to analyze main project plans of each facility in the Hansa Coking Plant and to bring out the main features of the plans, so that they can be utilized to find suggestions for Industrial/Technological Cultural Properties Revitalization in Korea.