• Journal of the Korean Crystal Growth and Crystal Technology
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• v.15 no.6
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• pp.222-224
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• 2005

In suite of their superior optical and laser properties rare-earth orthovanadate single crystals have not been adopted yet into extensive industrial applications because of crystal growth difficulties. The edge-defined film-fed-growth (EFG) technique was applied successfully for the production of such crystals. At first time 1 inch $LuVO_4$ single crystals were grown by the EFG technique using newly developed die construction of high porous iridium with the application of automatic diameter control system.

• Proceedings of the Korea Concrete Institute Conference
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• 2008.11a
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• pp.797-800
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• 2008

The pre-mixed concrete shotcrete, which can pre-bag the shotcrete materials and thus can save considerable labor activity, will be developed through extensive experiments. The proposed pre-mixed High performance Shooting concrete system included hydro-demolition will be verified though field tests in actual repair and rehabilitation construction sites. This research was on developing of the High performance Shooting concrete by evaluation of site application by field test using new automatic Hydro-demolition and Shotcrete equipment.

• Journal of The Korea Institute of Healthcare Architecture
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• v.16 no.1
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• pp.43-53
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• 2010

This study purports to investigate the status quo of the environmentally-friendly green healthcare in teaching hospitals through the questionnaire survey. Data were collected from a total of 46 hospitals. The survey results revealed that most teaching hospitals did not meet the global standard of environmentally-friendly green hospitals. Especially, such items as alternative energy system, water recycling, CO2 emission reduction, green building construction, installation of pond or spring were found to be significantly below global standard. Based upon the study results, various strategies for establishing green hospitals were discussed. For example, energy saving design, such as solar heating, natural wind cooling, automatic temperature controller, green material use, wall surrounded by ivy, were recommended. In conclusion, the strategy and evaluation tool developed in the study will provide a good guide for establishing environmentally-friendly green hospitals.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.1052-1053
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• 2008

도로 과적 차량은 일반 승용차보다 도로를 많이 훼손하여 도로, 교량의 사용 수명을 단축시키고, 유지보수 비용을 상승시키는 원인으로 분석되고 있다. 또한 과적 화물차량은 정상차량에 비해 도로 주행 흐름을 상대적으로 떨어뜨려, 도로 용량을 저하시키며, 소음과 진동의 발생, 배기가스 배출 등 여러 가지 문제를 발생시키는 원인이다. 특히, 도심지에서의 화물차 운행은 선진적인 단속체계가 더욱 필요하다. 현재의 단속시스템은 단속인력과 계측장비를 설치한 고정식의 과적 검문소를 운영하거나 이동식의 단속 검문을 병행하는 방식이다. 그러나 도심지의 경우, 교통정체, 고정식 검문소의 부지 확보 등 현실적으로 단속업무를 실시하기 어려운 환경이다. 본 논문에서는 현재 운영하는 고정식의 단속시스템을 자동 단속시스템으로 전환시키기 위한 기술적 구성 방안에 대해서 검토하였다.

• Journal of Korean Institute of Industrial Engineers
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• v.26 no.2
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• pp.171-182
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• 2000

For the last five years, data mining has drawn much attention by researchers and practitioners because of its many applicable domains. This article presents an adaptive decision tree algorithm for dynamically reasoning machine failure cause out of real-time, large-scale machine status database. Among many data mining methods, intelligent decision tree building algorithm is especially of interest in the sense that it enables the automatic generation of decision rules from the tree, facilitating the construction of expert system. On the basis of experiment using semiconductor etching machine, it has been verified that our model outperforms previously proposed decision tree models.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.679-682
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• 2005

지식정보사회에서 정보 품질에 관한 문제는 국가 경쟁력을 좌우하는 요소로 자리 잡고 있다. 이러한 인식을 바탕으로 정보를 연구하는 많은 학문 분야에서도 정보 품질 향상에 관한 연구를 지속적으로 수행하고 있다. 특히 ISO 9001:2000 품질경영시스템의 도입을 통한 정보 품질 향상을 위한 노력은 단순히 연구의 수준을 넘어 실제적으로 업무에 적용되고 있다. 본 연구는 실제적으로 수행되고 있는 정보 품질 향상을 위한 ISO 9001:2000 품질경영시스템의 도입 실례들을 살펴보고 이를 효율적으로 수행하기 위한 전산시스템의 구축에 관하여 살펴보고자 한다.

• Plant Journal
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• v.7 no.1
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• pp.40-48
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• 2011

This study shows the comparison between expected and actual capacity factors of a wind farm through wind resource analyzation. The expected capacity factor comes from an 'automatic weather system' run by the Korean national weather service and a 'meteorological mast' run by a project owner. Based on this comparison and analysis, the importance of meteorological mast micro-siting and selection of wind turbine class and type, will be studied along with presenting important implications for wind farm expansion and development.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2007.04a
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• pp.819-824
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• 2007

Outfitting system in ship design has huge kinds of standard part. Data base of and automatic design procedure of part master should be included in ship cad in order to reduce the design time. Present study shows an process of part master DB construction of pipe equipments using 3-dimensional CAD environment Attribute and properties of part masters are chosen from JIS standard. As the schema of part masters are stored in data base, 3D geometric model is parsed from the schema.

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 1999.10c
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• pp.245-251
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• 1999

In this study, by using the natural language processing of the field artificial intelligence, automated index was performed . And then, the Natural Language Processor for Constructing Database (NALPDB) has been developed. Furthermore, the Design knowldege Information Relational DataBase (DIREDB) has been also developed, which is designed to interlock the knowledge base. DIREDB processes both the documented design-data , like a concrete standard specification, and the design knowledge frrom an expert. DIREDB is also simulates the design space of structures accordance with the production rule, and thus it is determined that DIREDB can be used as a engine to retrieve new knowledge and to implement knowldege base that is necessary to the development of automatic design system.

• Proceedings of the Korea Concrete Institute Conference
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• 2005.05b
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• pp.285-288
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• 2005

This paper is an experimental study on applicability of repairing mortar using multi-functional slag aggregate. In this study, automatic construction machinery system were adapted, and their performance were evaluated by the using of those systems. In order to verify the effect of multi-functional aggregate, two kinds of aggregate were used and compared of their physical properties. The results indicate that multi-functional aggregate appears good physical properties such as durability, permeability coefficient.