• Proceedings of the Korean Society of Computer Information Conference
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• 2020.01a
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• pp.169-170
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• 2020

대학교에는 매년 입학, 복학과 같은 변하지 않는 학사일정이 반복되고 있다. 고정된 학사일정들이 진행되면서 매년 학생들에게는 학사일정에 대한 궁금한 부분이 생기고, 궁금한 부분을 해결해 줄 수 있는 교직원, 교수, 조교들에게 도움을 청한다. 이러한 과정에서 매년 같은 질문과 같은 대답이 반복되면서 발생하는 교직원, 교수, 조교들의 업무 부담을 줄이고, 인력으로 수행할 수 있는 업무의 한계를 극복하면서, 학생들에게 필요한 정보를 제공하고자 학생들의 질문 문장을 해체 분석하여 중요 키워드에 대하여 답변을 해주는 대학안내 챗봇 시스템을 개발하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.04a
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• pp.506-507
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• 2015

Our scheme going to use the advanteges of shadow technical and use it in flash memory. With our scheme we can maintain the system from corruption by making a capy table for table mappinng. It is make us to recover the data easily when something unusually happen to the system.

• Journal of the Korea Society of Computer and Information
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• v.22 no.1
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• pp.15-21
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• 2017

In this paper, we present a solution to the problems caused by using only text - based information as an index element when a commercialized missing person indexing system indexes missing persons registered in the database. The existing system could not be used for the missing persons inquiry because it could not formalize the image of the missing person registered together when registering the missing person. To solve these problems, we propose a method to extract the similarity of images by using OpenCV image processing and TensorFlow deep - running image processing, and to process images of missing persons to process them into meaningful information. In order to verify the indexing method used in this paper, we constructed a Web server that operates to provide the information that is most likely to be needed to users first, using the image provided in the non - regular environment of the same subject as the search element.

• Laser Solutions
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• v.9 no.1
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• pp.25-29
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• 2006

This study aimed to investigate the change of mechanical properties with the rolling direction and shielding condition during laser welding of AZ31 magnesium alloy. AZ31 magnesium alloy sheets of 1mm thickness were welded using a continuous wave Nd:YAG laser with and without Ar shielding gas. The effect of Ar shielding gas and rolling direction on the mechanical properties were investigated using Vickers hardness, transverse-weld tensile. Porosity in the weld metals was investigated using an optical microscope. The experimental results showed that mechanical properties of AZ31 magnesium alloy laser welds were upgraded compared to those of base metal. Mechanical properties of AZ31 magnesium alloy laser welds were not substantially changed when Ar shielding gas was supplied.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.07a
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• pp.297-298
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• 2020

본 논문에서는 머신러닝 학습에 있어 데이터 전처리의 중요성과 기존 데이터 전처리 기능을 가진 교육용 실습 플랫폼 서비스의 단점은 개선할 수 있는 데이터 전처리 학습을 위한 교육용 블록코딩 기반 실습 플랫폼을 제안한다. 머신러닝 모델의 학습데이터는 데이터 전처리에 따라 모델의 정확도에 큰 영향을 미치므로 데이터를 다양하게 활용하기 위해서는 전처리의 필요성을 깨닫고 과정을 정확하게 이해해야 한다. 따라서 데이터를 처리하는 과정을 이해하고 전처리를 직접 실행해 볼 수 있는 교육용 프로그래밍 언어 기반 D.I.Y 실습 플랫폼을 구현한다.

• Journal of Korea Technology Innovation Society
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• v.1 no.1
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• pp.59-68
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• 1998

Human Sensibility Ergonomics could be termed as an engineering approach to realize image or feeling of human into product design. Therefore, we measure qualitatively, quantitatively and scientifically the sensibility of human and apply it to design of product and environment, Later, we will try to help to manufacture products conveniently and comfortably for more pleasent human life. As the concept of products is changed from producer oriented products to consumer oriented, the technical trend of Human Sensibility Ergonomics improves and the demand of it increases. As we recognize the concept and importance of Human Sensibility Ergonomics in the country, we are going to apply to automobil, home appliance, etc. So, it is important to analyze the technical trend, survey the demand of Human Sensibility Ergonomics in the inside and outside of country, because it contributes to set up research direction and of Human Sensibility Ergonomics and to estabilish the priority of R&D, etc. This study is the analysis of the technical trend and character by fieldes of Human Sensibility Ergonomics in the country, surveyed the technical demand on automobile, home appliance in product field and the sensor of the five senses and processing technology in the infra technology field of Human Sensibility Ergonomics.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.05a
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• pp.801-804
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• 2004

본 논문에서는 등장 인물 검출 및 인식과 함께 등장 인물의 출연 구간 분석이 가능한 시스템을 제안한다. 드라마, 스포츠와 같은 방송 비디오는 그 특성상 인물이 중심이 되며 각 시점에 등장하는 주요 인물은 방송용 비디오의 중요한 특징이 된다. 따라서 방송용 비디오의 중요한 특징인 등장 인물을 분석하여 효율적인 비디오 관리 시스템을 개발할 수 있다. 본 논문에서 제안된 ACAV(Automatic Characters Analysis in Videos) 시스템은 등장 인물을 검출하여 인물 DB에 등록하는 FAGIS(FAce reGIStration)와 생성된 인물 DB을 이용하여 등장 인물을 분석하는 FACOG(FAce reCOGnition)로 구성된다. 상용화된 등장 인물 분석 시스템인 FaceIt과의 성능 비교를 통해 ACAV의 성능을 검증하였다. 얼굴 검출 실험에서 ACAV의 얼굴 검출률은 84.3%로 FaceIt 보다 약 30% 높았고, 얼굴 인식 실험에서도 ACAV의 얼굴 인식률은 75.7%로 FaceIt 보다 27.5% 높은 성능을 보였다. ACAV 시스템은 방송 멀티미디어 공급자를 위한 대용량 비디오 관리 시스템으로 이용될 수 있으며 일반 사용자를 대상으로 한 PVR(Personal Video Recorder), 모바일 폰 등의 비디오 관리 시스템으로도 이용될 수 있다.

• Corrosion Science and Technology
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• v.23 no.3
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• pp.215-220
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• 2024

Recently, the demand for Zn-Ni electrogalvanized steel sheets for home appliances and automobiles is increasing. Products should have a thick plating (30 to 40 g/m²) on both side with a thin thickness (≤ 0.8 mm) and the highest surface quality. By a high current density operation, current is concentrated in the edge part of the steel sheet, resulting in large surface dent defects due to dendritic plating. This can lead to a low productivity due to low line speed operation. To solve this problem, this study aimed to identify factors influencing dendritic plating. A cylindrical electroplating device was manufactured. Effects of cut edge shape and thickness of steel plate, current density, temperature, flow rate, electrolyte concentration, and pH on dendrite generation of Zn-Ni electroplating were examined. To investigate effect of edge shape of the steel sheet, the steel sheet was manufactured using three processing methods: shearing, polishing after shearing, and laser. Relative effects thickness and cut edge processing methods of the steel plate, current density, temperature, flow rate, electrolyte concentration, and pH of plating solution on dendrite plating were investigated. To prevent dendrite plating, an edge mask was manufactured and its application effect was investigated.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2016.05a
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• pp.227-228
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• 2016

Terrestrial laser scanning (TLS) technology is being applied to various fields such as the soil volume calculation and the displacement measurement of terrain, tunnels and dams. This study develops a 3D terrain processing platform for automated earth work using a terrestrial laser scanning data as the software prototype. The developed software provides cells with geo-technical information for planning work to an integrated system.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.374-376
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• 2018

In this study, we developed a mobile home robot using a face recognition method using a camera attached to a raspberry pie. It receives the real time image through the camera attached to the raspberry pie, recognizes the face of the person, and distinguishes the operation of the smart cool air temperature device according to the result. It is expected that the robot will be able to increase the energy utilization efficiency by allowing the robot to operate in cold and hot winds only where there is no human being, instead of operating the hot and cold air conditioner.