• Cement
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• s.150
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• pp.34-37
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• 1999

• Railway Journal
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• v.18 no.6
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• pp.14-16
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• 2015

• ICROS
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• v.3 no.3
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• pp.22-28
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• 1997

• Monthly Newsletter
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• no.194
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• pp.4-4
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• 2004

• Nuclear industry
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• v.9 no.12 s.82
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• pp.72-85
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• 1989

• The Journal of the Korea Contents Association
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• v.18 no.3
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• pp.342-353
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• 2018

The purpose of this study was to investigate the awareness of early childhood teachers for the development of early childhood education programs using background music. The subjects of this study were 272 early childhood teachers of kindergartens in Busan and Kyungnam provinces. The data were collected through questionnaires on the awareness of children's appreciation of fairy tales using background music. The collected data were analyzed by frequency and percentage using SPSS 18.0 program. The results of this study are as follows: First, the number of early childhood teachers who had experience of performing fairy tales using background music were less than half of them. Secondly, the purpose of appreciation of fairy tales using background music was to develop rich emotions. In order to understand the systematic knowledge and concept of background music, it was necessary to supply background music in various life styles. Third, development of a fairy tale appreciation program using background music was generally required. Third, development of a fairy tale appreciation program using background music was generally required. Fourth, a fairy tale appreciation program using background music is appropriate for the large group activity time of 10~20 minutes one or two times a week and it was necessary to have a concatenated structure of pre-activities, introduction methods, questioning techniques in development, finishing methods, evaluation methods, and extension activity methods.

• Journal of the Korea Convergence Society
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• v.12 no.10
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• pp.1-8
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• 2021

In online meetings and classes using webcams, the chromakey technique is a very necessary part to produce content. We proposed a technology that enables background synthesis without using a cloth for chromakey. The proposed method consists of three steps: an HSI image conversion step, a step of detecting a region changed from a background, and a step of replacing the background region with a chromakey and applying it. In the input video, the block average image of each frame is calculated, and the difference between the block average image of the background image and the block average image of the input image is used to detect the change area. The developed chromakey effect technology uses a technique of acquiring a background image without an object from a single camera and extracting only an object by distinguishing the moving object and the background. The proposed method is not only capable of processing even if the background has a variety of colors, but also has the seamless processing of the boundary lines of objects.

• Geotechnical Engineering
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• v.26 no.7
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• pp.8-14
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• 2010

두바이 워터프론트(waterfront) 개발 사례는 그동안 다양한 지면을 통해 수차례 소개되어 우리 지반공학자들에게는 매우 익숙한 사업이다. 그러나 그 범위가 매우 넓고 다양하다는 사실과 개발배경에 대해서는 알려지지 않은 면이 있다. 따라서 본 학회지에서는 앞으로 2회에 걸쳐 두바이 워터프론트(waterfront) 개발사례에 대한전반적인 내용을 소개하고자 한다.

• The Journal of the Korea institute of electronic communication sciences
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• v.15 no.6
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• pp.1195-1200
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• 2020

The DOM (: Digital Optical Method), which measures the turbidity of chimney smoke, is a method of calculating the turbidity by setting the area to be measured and the contrast area using a low-cost digital camera that can be easily obtained. However, it is difficult to measure clouds and white smoke in a cloudy sky. In this paper, we develop a background sky type model that can represent the background sky and classify the type by periodically photographing it with a digital camera to solve this problem. In addition, based on the model, we develop a filter to optimize white smoke image and prove its excellence through experiments.

• Journal of the KSME
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• v.53 no.5
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• pp.45-50
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• 2013

인체장기칩(Human Organs-on-Chips)은 미세공학, 생체모방, 세포생물학 분야의 기술을 시너지 있게 접목하여 개발되는 신개념의 인체 대리모델이다. 이 글에서는, 이러한 생체모사 시스템의 개발 배경과 최근 연구동향, 그리고 잠재성에 대해서 살펴본다.