• Journal of the Korean housing association
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• v.9 no.3
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• pp.119-131
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• 1998

This paper is a part of "The Study of the Traditional Korean Ethnic Farmhousing in Yanbian, China". The purpose of this study focuses on Korean farm house and is twofold: 1) to survey the working space and storage space for tools: 2) to investigate the daily use of space according to the different work activities. It is based on a survey of 124 households in the farm villages of Lunching, China. Survey research methods included a field study in Dallajae. A questionnaire was used to conduct this study. the study found that the working space for the koran farm family is divided into an indoor area and outdoor area. The indoor space includes working areas where the families live their daily life, cook, launder, clean, mange the house keeping, usually stare the grain. The outdoor space includes areas to store the grain, farm tools, rice box, shelves and other things such as sewing machine, iron, and tools used for cleaning the house and for farming. The center of life and work for the farm family was the chung-ji-kan (the combined kitchen and major ondol living room) located in the indoor space.oor space.

• Proceedings of the SAREK Conference
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• 2008.06a
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• pp.1378-1385
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• 2008

This study is aimed to analyze the flow patterns and thermal characteristics by computer simulation under the variations of fire strength for Daegu-Pahang Yimgo-4th tunnel, from which flow and heat distributions are predicted in the longitudinal tunnel. Though the results of numerical computations, followings are found; one is that the volume flow rate is discontinuously increasing as closer to fire location, and the other is that a critical design to get faster flow rate is required because of existence of backlayer flow for the high fire strength in view of safety for the people in fire of the tunnel.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04a
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• pp.796-798
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• 2004

최근 무선인터넷이 발달함에 따라, 핸드폰이나 PDA 및 정보가전용 기기들에 플랫폼 독립성, 이식성, 네트워크 이동성의 장정을 갖는 자바기술을 적용한 서비스가 증가하고 있다. 자바 플랫폼은 각각의 하드웨어 플랫폼에 맞게 포팅 된 가상머신이 존재하여, 컴파일 된 바이트 코드를 해석하기 때문에 플랫폼 독립성을 갖게 된다. 그러나 sun사의 JVM을 사용할 경우 고가의 royalty를 지불해야 하기 때문에 경쟁력을 높이기 위해 “클린눔(Clean Room)”에서 개발한 국산 KVM이 절실하며, 이에 국내에서 활발한 연구가 이루어지고 있는 실정이다. 본 논문에서는 자바가상머신의 일부분인 클래스 로더 시스템에 관해 설계 및 구현한다.

• IE interfaces
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• v.16 no.spc
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• pp.93-98
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• 2003

This paper addresses an AGV dispatching problem in semiconductor clean-room bays where AGVs move cassettes of wafers between machines or machines and a central buffer. Since each machine in a bay has a local buffer of limited capacity, material flow should be controlled in a careful way to maintain high system performance. It is regarded that two most important performance measures in a semiconductor bay are throughput rate and lead-time. The throughput rate is determined by a bottleneck resource and the lead-time depends on smooth material flow in the system. This paper presents an AGV dispatching procedure based on the concept of theory of constraints (TOC), by which dispatching decisions are made to utilize the bottleneck resource at the maximum level and to smooth the flow of material. The new dispatching procedure is compared with existing dispatching rules through simulation experiments.

• Journal of the Semiconductor & Display Technology
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• v.10 no.1
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• pp.75-81
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• 2011

Today, FPD manufactures are eager to develop larger and larger glass to become the prime market leader. To follow this need, larger AMHS(Automated Material Handling System) development is essential. The radical increase of glass/cassette weight puts a lot of pressure on stocker robot's dual arms, which can cause a damage of expensive glasses and contaminate a clean room facility. In this paper the axiomatic design method is used to institute a design guideline to evenly distribute a pressure throughout the stocker robot structure.

• Journal of the Korean Chemical Society
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• v.55 no.4
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• pp.662-665
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• 2011

Highly efficient, three-component condensation of aromatic aldehyde, malononitrile and 4-hydroxycoumarin promoted by neat silica gel at room temperature is described. The method offers an excellent alternative to the synthesis of 3,4-dihydropyrano[c]chromenes. The reactions are fast and clean, and the products are obtained with good yield and purity.

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.06a
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• pp.363-366
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• 2011

3D 디스플레이 시장이 커지면서 TFT-LCD TV 자동화 라인 생산 공정을 3D LCD TV 생산 공정으로 변환하여 대량 생산할 경우, 기 설치된 자동화 생산라인의 H/W 부분에는 특별한 투자가 이루어질 거라 판단되지 않고 있다. 하지만 3D LCD Module 검사 등의 S/W 적인 부분은 현재의 기 설치된 TFT-LCD Module 검사장비로는 검사가 불가능하여, 추가적인 투자가 이루어질 것이라 판단되고 있다. 이와 관련하여 본 연구에서는 TFT-LCD 제조공정의 효율적인 기술을 제안하고자 한다. 첫째는 TFT-LCD를 Cell상태에서 직접 구동하는 구동회로 기술과 사용 장소가 Clean Room이므로 개별적 구동 Pallet에 비접촉식으로 전원을 공급할 수 있는 비접촉식 급전장치에 대한 기술이다.

• Bulletin of the Korean Chemical Society
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• v.7 no.3
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• pp.235-237
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• 1986

Reaction of $(E)-{\beta}-chloro-{\gamma}$-hydroxyvinylmercurials, prepared by mercuration of propargyl alcohol and 2-methyl-3-butyne-2-ol, with olefins in the presence of a catalytic amount of $Li_2PdCl_4$ and 2 equiv of cupric chloride in methanol at $50^{\circ}C$ gave the corresponding (E,E)-2,4-dienols in moderate yields. However, addition of 1 equiv of inorganic bases such as magnesium oxide to the reaction mixture brings a rapid and clean vinylation and gave high yields of the dienols at room temperature. In the case of hindered (E)-2-chloro-3-chloromercuri-2-buten-1,4-diol prepared from 2-butyne-1,4-diol, reaction with olefins gave the dienols only in low yields even in the presence of 2 equiv of magnesium oxide.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.18 no.2
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• pp.130-137
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• 1989

본 논문은 1. 초청정기술의 현황, 2. 초청정장치의 요소기술, 3. 초청정장치의 개요, 4. 국부청정실의 기본계획에 대해 기술하고 있다. 1. 초청정기술의 현황에서는, 본 연구수행의 방향설정을 위해 미국과 일본의 관련 학${\cdot}$협회의 동향 및 최근에 발표된 논문에 근거한 초청정기술의 연구경향과 과제 등을 파악 분석했다. 2. 초청정장치의 요소기술에서는, 초청정장치 개발에 필요한 미립자제거, 환경조건과 오염제어 기술을 확립하기 위해, Filter와 System Ceiling 방식, 온${\cdot}$습도, 진동, 정전기제어 기술에 관한 문제점과 대책에 대해 검토했다. 3. 초청정장치의 개요에서는, 초청정장치로써 대표적인 클린벤취의 관련규격, 설계요점 등을 검토하여 설계를 위한 기초자료로 삼았다. 4. 국부청정실의 기본계획에서는 상기의 요소기술과 기초자료에 근거하여 본 연구를 수행하기 위한 Line 형의 클린터널 유닛의 기본계획을 수립했다.

• Journal of environmental and Sanitary engineering
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• v.16 no.4
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• pp.62-68
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• 2001

The advantages of hydrogen peroxide dissolution method were no discharge of noxious matter when dissolution of iron wire which used as the center supporter, reactions occur in room temperature and easy to recover dissolved iron. This study was aimed at gathering the basic data of iron wire dissolution- recovery process and proposes the reaction condition of iron wire dissolution- recovery process rind the factors influencing those reactions. The results were as follows : 1 . Hydrogen peroxide dissolution method used hydrochloric acid as the catalyst. 1. In the dissolution of iron wire(1.668 g), the condition of reaction was E1702(30 ml), HCI(20 ml) and $H_2O$(200 ml) ; time of the reaction was 18 min. P.W.(Piece weight) was 7.75 mg, and C.R. was $2.34{\;}{\Omega}$ 2. In the dissolution of iron wire(1.529 g), the condition of reaction was H7O2(30 ml), HCI(20 ml) and $H_2O$(200 ml), time of the reaction was 21 min., P.W.(Piece weight) was 7.73 mg, and C.R. was $2.35{\;}{\Omega}$. Hydrogen peroxide dissolution method used sulfuric acid as the catalyst. 1. In the dissolution of iron wire(0.834 g), the condition of reaction was $H_2O$(65 ml), $H_2SO_4$(5 ml) and 1702(5 ml) ; time of the reaction was 5 min.30 sec, P.W.(Piece weight) was 7.74 mg, and C.R. was $2.33{\;}{\Omega}$ 2. In the dissolution of iron wire(1.112 g), the condition of reaction was $H_2O$(65 ml), $H_2SO_4$(5 ml) and $H_2O_2$(5 ml) ; time of the reaction was 4 min.30 sec, P.W.(Piece weight) was 7.75 mg, and C.R. was $2.33{\;}{\Omega}$. Hydrogen peroxide dissolution method used hydrochloric acid and sulfuric acid as the catalyst confirmed a clean technology, because there were not occurred a pollutant discharged in the existing method.