• 방송공학회논문지
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• 제28권3호
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• pp.302-313
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• 2023

본 연구는 과학기술정보통신부가 2017년부터 1조원 이상을 투자한 'AI Hub 댐' 사업에서 구축된 인공지능 모델 학습데이터의 품질관리를 자동화할 수 있는 프레임워크의 개발을 목표로 한다. 자율주행 개발에 사용되는 AI 모델 학습에는 다량의 고품질의 데이터가 필요하며, 가공된 데이터를 검수자가 데이터 자체의 이상을 검수하고 유효함을 증명하는 데는 여전히 어려움이 있으며 오류가 있는 데이터로 학습된 모델은 실제 상황에서 큰 문제를 야기할 수 있다. 본 논문에서는 이상 데이터를 제거하는 신뢰할 수 있는 데이터셋 정제 프레임워크를 통해 모델의 인식 성능을 향상시키는 전략을 소개한다. 제안하는 방법은 인공지능 학습용 데이터 품질관리 가이드라인의 지표를 기반으로 설계되었다. 한국정보화진흥원의 AI Hub을 통해 공개된 자율주행 데이터셋에 대한 실험을 통해 프레임워크의 유효성을 증명하였고, 이상 데이터가 제거된 신뢰할 수 있는 데이터셋으로 재구축될 수 있음을 확인하였다.

• 한국자기공명학회논문지
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• 제6권1호
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• pp.38-44
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• 2002

60% Pt on Vulcan XC-72 with similar Pt sizes to fuel cell grade Pt black was investigated by $\^$13/C nuclear magnetic resonance spectroscopy (NMR), cyclic voltammery (CV), transmission electron microscopy (TEM). Experiments were carried out on electrochemically cleaned samples as well as as-received. The TEM and CV results showed that the average particle sizes were changed by cleaning. However, the chemical shift （$\delta$$\_$G/） of $\^$13/C of $\^$13/CO absorbed on Pt surfaces did not show any appreciable variation with particle size change as did in Pt black. These results indicate that a combination of different analytic techniques is essential to understand the properties of the metal particle catalysts and that the presence of carbon black support strongly influences the NMR data, probably through metal-support interaction.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2004년도 춘계학술대회 학술발표 논문집 제14권 제1호
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• pp.149-152
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• 2004

Generally the wafer is increased by 300mm. We are desired that the wafer is prevented from pollutions of metal contaminant on surface of wafer. We have to develop new wafer cleaning process of IC Manufacturing that can reduce DI water and chemical by removal of the wafer cleaning process step. Moreover, it is difficult to control temprature and density of chemical in spite of rapidly increasing automation of system. We design smart module controller for new generation of semiconductor wet station with intelligent algorithm using data that is taken by computer simulation for optimal system.

• 대한가정학회지
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• 제41권6호
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• pp.105-117
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• 2003

This study was intended to investigate specific plan to enhance the adolescents consumers' environment-friendly consumption behavior in their consumption. For this purpose, a questionnaire was conducted among middle and high school students. As a result, the following findings were obtained: The related items in the questionnaire were categorized into factors in an attempt to investigate consumers' environment-friendly consumption. Factor I was coded as active recycling and the use of refilled products and Factor Ⅱ was coded as the behavior of active savings. Adolescents consumers with more experiences in environmental activity showed the higher level of behavior of environment-friendly consumption, and female adolescents consumer did so than male adolescents consumer And adolescents consumers showed the higher level of practical behavior of environment-friendly consumption in case of data and document arrangement than in case of cleaning, and in case of voluntary social service than in case of only cleaning.

• 복식문화연구
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• 제11권6호
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• pp.902-912
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• 2003

The purpose of this research was two-folds; first, to investigate the type of soil contaminated in the Hunsang excavated from the Milchang-gun burial of Mapo for the purpose of proposing the adequate washing method, second, to utilize the chemical degradation result obtained from the previous research to identify the natural dye source used in the Hunsang textile. The application of KS K0251 test showed that the soil was more oleophilic than hydrophilic thus indicating that wet cleaning was more adequate that dry cleaning for the removal of Hunsang soil. The GC-MS result of the Hunsang extraction showed dimethyl phthalate and 2,4-di-tert-butylphenol as its degradation product and these coincided with the degradation products from the alizarin standard data of previous research. The comparison of the two suggested that it is likely that Hunsang was dyed with madder which has alizarin as its major chromophore.

• 반도체디스플레이기술학회지
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• 제20권4호
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• pp.146-150
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• 2021

Plasma information based virtual metrology (PI-VM) that predicts wafer-to-wafer etch rate variation after wet cleaning of plasma facing parts was developed. As input parameters, plasma information (PI) variables such as electron temperature, fluorine density and hydrogen density were extracted from optical emission spectroscopy (OES) data for etch plasma. The PI-VM model was trained by stepwise variable selection method and multi-linear regression method. The expected etch rate by PI-VM showed high correlation coefficient with measured etch rate from SEM image analysis. The PI-VM model revealed that the root cause of etch rate variation after the wet cleaning was desorption of hydrogen from the cleaned parts as hydrogen combined with fluorine and decreased etchant density and etch rate.

• 한국언어정보학회:학술대회논문집
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• 한국언어정보학회 2002년도 Language, Information, and Computation Proceedings of The 16th Pacific Asia Conference
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• pp.455-464
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• 2002

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• 한국항공운항학회:학술대회논문집
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• 한국항공운항학회 2005년도 춘계학술발표대회 논문집
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• pp.58-62
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• 2005

LOSA is spreading rapidly over the world to improve safety of the airlines using threat and error management system. LOSA has shown its success on the major improvement on many areas including the riskiest phase called the blue box, which is the busiest during approach and landing. Asiana Airlines has completed data collection in 2004 and round table for the data cleaning, to implement safety change process. The propose of this paper is to introduce the LOSA, ICAO DOC 9803, and the experience of Asiana.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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• pp.407-410
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• 2003

We will introduce our new concept deposition system for SMOLED manufacturing in this conference. This system is designed to deposit organic and metal material to downward to overcome the limit of substrate size and process tact time hurdle for OLED mass production, and is organized with organic deposition chamber, substrate pre-cleaning chamber, metal deposition chamber and encapsulation system. These entire process chambers are integrated with linear type substrate transfer system. We also compare our new SMOLED manufacturing system with conventional vacuum deposition systems, and show basic organic thin film property data, organic material deposition property data, and basic device property.

• 한국산학기술학회논문지
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• 제16권8호
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• pp.5189-5197
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• 2015

본 연구는 숲 체험활동에 대한 유아 교사들의 인식 및 요구도를 연구하였다. 연구 대상은 대전광역시에 소재한 유치원과 어린이집 교사170명을 대상으로 하였으며, 통계처리는 데이터 코딩(data coding)과 데이터 클리닝(data cleaning) 과정을 거쳐, SPSS(Statistical Package for Social Science) v. 18.0 통계 패키지 프로그램을 이용하여 분석하고, 조사대상자의 일반적 현황은 빈도분석을, 숲 체험 활동에 대한 인식과 요구도는 빈도분석 및 분산분석과 요인분석을 실시하였다. 연구결과 교사들의 숲 체험활동에 대한 교육적 효과가 긍정적인 것으로 나타났으며 특히 숲 체험 활동에 대한 인식 및 요구에서 숲 체험교육의 중요성에 대한 교육 프로그램의 적극적인 추천과 권장할 것을 인식하는 것으로 나타났다. 이는 숲 체험 교육의 중요성과 유아교사들의 인식이 유아의 자연과 상호작용하면서 그 안에서 인간과 자연과 공존의 중요성을 깨닫고 공동체 의식을 함양하는 데 숲 체험 교육이 그만큼 중요하고 유용함을 시사한 것이라 할 수 있다.