• Proceedings of the Acoustical Society of Korea Conference
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• 1998.06e
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• pp.99-102
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• 1998

입사된 음파에 대한 배지동의 발생이 물체내 결함이 존재할 때에 나타나는 중요한 비선형 효과라는 것을 이용하여 단순화된 실험실 조건의 겹쳐진 두 장의 유리판에 적용하였다. 본 논문에서는 층상 접합 물체에 있어서의 비파괴 검사법을 위해 접합되지 않은 부분은 두 장의 유리판 사이의 공기 층으로 단순화되었고, 접합되어진 부분은 물 층으로 간주하여 실험을 진행하였고 서로 다른 조건의 두 접합 부분으로부터 발생된 주파수 응답을 관찰하였다. 결과로써 입사된 음파에 대한 배진동의 발생이 공기층에서 두드러지게 나타났지만, 물층에서는 배진동의 발생이 억제되었다. 이 결과로부터 배진동의 발생은 이차원적인 겹쳐진 물체에도 적용 가능함을 알 수 있었다.

• 베이커리
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• no.8 s.313
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• pp.112-113
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• 1994

• Bulletin of Korea Environmental Preservation Association
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• v.6 no.7
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• pp.10-13
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• 1984

• Bulletin of Korea Environmental Preservation Association
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• v.6 no.8
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• pp.14-16
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• 1984

• Bulletin of Korea Environmental Preservation Association
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• v.6 no.6
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• pp.12-15
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• 1984

• Journal of Biosystems Engineering
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• v.14 no.4
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• pp.251-261
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• 1989

The amount of grain loss incurred during harvesting operation through the chaff-outlet of combine may not be negligible. To minimize this grain loss and optimize condition of combining, it may be necessary that the amount of chaff-outlet loss dependent on varying crop condition is to be estimated as exactly as possible. This study was thus intended to develop the monitor that could indicate the amount of grain loss occurred through the chaff-outlet of combine during harvesting operation. The function of this monitor is to measure at the sounding board the impact sound of paddy kernels which could be distinguished from those of other threshing products through chaff-outlet, and from vibration or noise created by the combine engine and other moving parts. To develop such monitor, the frequency distributions of each sound generated by the impact of grain and chaff, the sound generated by the impact of the mixture of grain and chaff, and vibration or noise created by the combine engine and other moving parts were investigated experimentally. From the results of frequency analyses, the trainsducer adequate for the monitering system was selected and sounding board was constructed. The grain loss monitor thus obtained was tested by attaching the sounding board to the chaff-outlet of combine.

• Journal of Biosystems Engineering
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• v.15 no.4
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• pp.310-318
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• 1990

The amount of grain loss incurred during harvesting operation through the chaff-outlet of combine may not be negligible. To minimize this grain loss and optimize condition of combining, it may be necessary that the amout of chaff-outlet loss dependent on varying crop condition is to be estimated as exactly as possible. This study was thus intended to develop the monitor that could indicate the amount of grain lost through the chaff-outlet of combine during haravesting operation, and to find out driving and operating method of combine that could reduce chaff-outlet loss. In the study(1), the frequency distributions of each sound generated by the impact of kernels and chaff, the sound generated by the impact of the mixture of kernels and chaff, and vibration or noise created by the combine engine and other moving parts were investigated experimentally. Based on the results of frequency analyses, the loss monitor was developed which could measure the impact sound of paddy kernels that could be distinguished from those of other threshing products through chaff-outlet, and from vibration or noise created by the combine engine and other moving parts. Also in this study, detecting capability of monitor was tested by comparing the amount of grain lost through chaff-outlet with the amount of grain detected by the loss monitor, and changes in chaff-outlet grain loss on the increase of traveling speed, location of chaff-outlet loss control plate and variety of paddy rice were measured using the loss monitor. The monitor developed in this study efficiently measured the amount of grain lost through the chaff-outlet of combine. It was found that the chaff-outlet grain loss ratio was affected greatly by the variety of paddy rice, the location of chaff-outlet loss control plate and traveling speed of combine.

• Journal of the Korean Society of Costume
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• v.51 no.1
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• pp.75-85
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• 2001

The purpose of this study is to provide for the basic data useful to the high quality knitwear production. For this purpose, knit promotions that product knitwear for 20 age ∼ 30 middle age women were sampled to survey the fabric planning and production·quality management of knitwear, and their directors were surveyed through direct interviews. Data is processed by a computer(SPSS) and analyzed by using frequency, percentage, mean. The results of this study are as fellows. 1. Most of the sample companies were getting smaller or pettier in terms of capital, number of employees. 2. Knit promotions were universally using acrid and wool as knit fabric. 3. Knitwear tended to be producted much in knit promotions. 4. It is needed to use high quality fabric and perform careful sewing for knitwear quality rising.

• 한국IT서비스학회:학술대회논문집
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• 2003.05a
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• pp.428-435
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• 2003

Post-Genome 시대의 Biotechnology(BT) 산업에 세계적으로 관심과 투자가 증가하고 있다. BT 산업은 기술 및 지식 집약적 특성상 R&D 활동이 중요하기에 BT 연구실의 실험 생산성 증가에 대한 연구가 필요하다. 이와 관련하여 연구실 지식경영과 지식경영시스템활용에 관한 연구가 활발히 진행되고 있다. 하지만 그 초점이 연구 지식들의 조직화, 체계화 및 검색기능 등의 원활한 지식 공급 시스템 구축에 있기에 효율적이고 효과적인 지식 생성 방안을 제시해 주지 못하고 있다. 이에 본 연구는 실험실 내 데이터 처리 및 통합 관리 역할을 해온 LIMS(Laboratory Information Management System)를 활용하여 실험 데이터들로부터 실험 디자인을 위한 효율적이고 효과적인 형식지(Explicit Knowledge)의 생성을 목적으로 하는 지식 생성 툴(Knowledge Creation Tool)을 설계하였다. 또한 상기 모델을 적용하여 실제 어떠한 형태로 지식이 생성되는지 A대학교 B유전자 연구실의 실험 데이터로 실증 분석해 보았다.

• Proceedings of The KACE
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• 2018.08a
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• pp.167-170
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• 2018

제주특별자치도는 2016년부터 제주로on코딩이라는 제주형 SW교육 사업을 통해 디지털 사회혁명을 대비하고 있다. '제주로on코딩'은 제주형 SW교육을 위한 내용체계 개발에서부터 컴퓨팅 사고력 증진을 위한 전문강사 양성 과정 운영 등 SW소양교육부터 인식확산 사업까지 SW교육 토탈 솔루션을 제공하고 있다. 본 논문에서는 2016 2017년 성과를 바탕으로 향후 개선방향을 정리하고 이후 제주로on코딩이 나아갈 방향에 대해 제언하고자 한다.