• 한국HCI학회:학술대회논문집
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• 2007.02a
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• pp.887-890
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• 2007

디제잉을 하려면 필수적으로, 턴테이블, 믹서, 스피커와 같은 장비들이 필요하다. 하지만 이러한 장비들은 그 크기가 크고 많은 연결선으로 연결되기 때문에 휴대가 용이하지 않아, 일반인들이 가지고 다니면서 디제잉을 즐기고 음악을 믹싱하기에 적합하지 않다. 많은 사람들이 디제잉과 믹싱을 배우고, 또 언제 어디에서나 쉽게 즐길 수 있게 하기 위해서는 보다 작고, 휴대하기 편하면서도 설치의 번거로움이 없는 새로운 인터페이스를 개발할 필요성이 있다. 이 논문에서는 사람들이 언제 어디에서나 쉽게 디제잉과 믹싱을 즐길 수 있도록 해주는 휴대용 무선 믹싱콘솔 장치를 제안한다.

• Fiber Technology and Industry
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• v.8 no.1
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• pp.11-18
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• 2004

급속한 반도체 기술의 발전은 획기적인 컴퓨터 및 통신기술의 발전을 가져왔고 초고속 정보화를 가속화시켜 통신의 패러다임과 인류의 생활패턴을 바꾸어 놓았다. 또한 컴퓨터의 초소형 출력장치와 저장장치 및 센서나 음성 인식을 기반으로 한 컴퓨터 입력 방식의 변화, 이동통신 발전 등을 통합한 새로운 컴퓨팅 시대를 요구하고 있다. 1990년대까지의 컴퓨터 기술은 대형컴퓨터에서 고정형태의 개인용 컴퓨터로 발전하였고, 최근에는 노트북을 비롯한 여러 가지 형태의 휴대용 컴퓨터의 등장으로 컴퓨터를 가지고 다니는 포터블(portable) 시대를 지나 반도체와 통신 기술 등의 발전에 힘입어 몸에 지니는, 입고 다니는(wearable)웨어러블 시대에 접어들었다. 따라서 사용자의 몸에 부착시키고 다니면서 언제 어디서든지 컴퓨터와 네트워킹을 하여 사용할 수 있는 디지털 의류를 필요하게 되었다.(중략)

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.1025-1025
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• 2015

본 논문에는 Flyback컨버터의 PWM방식과 조명용 LED 구동장치의 디밍에 의한 조명제어를 제안한다. 제안된 LED 구동회로는 Flyback 컨버터를 이용하여 교류 입력 전원을 직류 출력전원으로 변환되는 과정을 이해한다. 포터커플러의 역할과 그 Feedback원리 그리고 PWM방식으로 IC를 직접 제어하여 버스트 디밍을 구현하고 LED의 밝기 밝기 조절 및 불필요한 전력낭비를 예방하는데 목적을 두었다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.05a
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• pp.306-306
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• 2004

최근 광학식 비접촉 3차원 스캐너의 측정 정밀도는 매우 빠르게 향상되고 있다. 이러한 측정정밀도의 향상으로 3차원 스캐너를 자동차나 전자제품의 인스펙션(Inspection) 툴로 활용하는 사례가 점차 늘고 있다. 3차원스캐너는 측정대상물의 곡면을 신속하게 측정하는 것이 가능하고 높은 해상도를 가지고 있다. 또한 CMM에 비하여 가격이 저렴하고 포터블하므로 향후 많은 산업분야에서 활용성이 점차 커질 것으로 기대된다.(중략)

• Proceedings of the Korea Contents Association Conference
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• 2019.05a
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• pp.301-302
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• 2019

드론산업은 항공 SW 통신 센서 소재 등 연관 산업이 융합된 차세대 전략산업이며, 다양한 비즈니스 모델 창출이 가능한 특징이 있다. 특히, 드론 체험관산업은 다양한 수요에 대응한 IT 센서 등 융 복합이 요구되는 융합의 특징을 지닌다. 드론 체험관 구성을 위해서는 드론제어/운영 SW, 배터리, 센서 융합기술이 필요하다. 시장구조분석은 마이클 포터의 5가지 산업구조 분석요소를 사용하여 분석하였다.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.49 no.3
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• pp.60-66
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• 2012

In this paper, we propose abandoned object detection algorithm. When abandoned object was occluded other object, the existing methods cannot detect abandoned object because those methods are not able to estimate the location of abandoned object. In order to overcome this problem, the proposed algorithm extracts the corners around abandoned object. The detected corners are linked to center of abandoned object called by supporters. We can then estimate the location of abandoned object by using supporters. Therefore, the proposed algorithm can detect and estimate the location of abandoned object, when abandoned object is occluded by other object. For this reason, the proposed algorithm can be applied to intelligent surveillance system to prevent bomb terror, which disguises as luggage or box.

• Environmental and Resource Economics Review
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• v.22 no.4
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• pp.785-815
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• 2013

This paper analyzes the three issues related to the effect of environmental regulations on the Korean trades with gravity equation model: the effect on the Korean exports, the bilateral trade flows between the Korea and the trade partners, and the Korean international competitiveness. For all three issues we carried the empirical tests with fixed effect estimation methods for total industries, non-pollution industries, pollution industries, and also 16 individual pollution industries. We use industry panel data for the 120 largest trading countries with Korea for the years 2000-2010. The Environmental Performance Index (EPI) is used as the proxy variable for the environmental regulation. The empirical result shows that while GDPs of both Korea and its trading partners are very important factors affecting positively the Korean trades for all industries, the environmental regulation of the importing country would be a definite trade barrier to the Korean pollution industries, but not a definite one for the non-pollution industries. In addition, the stricter environmental regulations of Korea's trade partners would weaken the Korean international competitiveness of Korean pollution industries. In this regard, the Porter Hypothesis would have not appeared in the Korean trades of pollution industries during the period observed in this study.

• Journal of Internet Computing and Services
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• v.3 no.4
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• pp.95-102
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• 2002

A continuous development of new hardware and operating systems brings the importance of portable programming, which can be imported into multi-platform environment. Also, the recent development of computer communication technology brings us many choices of accessing into the other platforms, which also becomes a burden for the programmers who should consider developing software fitting into diverse platforms The present GNU system tools creates a part of the source code automatically, and suggests a direction towards a new platform. but the source code must be prepared by the programmer at the source level. In this paper, we describe design and implementation of on interactive tool for developing multi-platform software, The tool is designed to help a programmer to build a portable program for multi-platform, even though the programmer does not know very well about various UNIX platforms, And, the tool uses existing GNU system tools, such as autoconf, autoheader, automake and etc, and is able to insert a portable code into a right position by interacting with a programmer.

• Fashion & Textile Research Journal
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• v.18 no.1
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• pp.15-26
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• 2016

Many brands are attempting to use consumers as a part of their marketing strategies, due to the fashion industry's sensitive response to consumers' reaction. In addition, due to the popularity of e-WOM(electronic Word-Of-Mouth), fashion brands are highly sensitive to their supporters' online reviews. Amid this background, the main objectives of this study are as follows: 1) to analyze the effect of online reviews' attributes and valences on forming an impression about a fashion brand; 2) to examine the online re-WOM(word-of-mouth) effect of online reviews by fashion brand supporters on brand attitude; and 3) to measure the moderating effect of fashion involvement in online re-WOM intention. In order to verify the research model and to test the proposed hypotheses, a 2 (utilitarian vs. hedonic review attributes) by 2 (positive vs. negative review valences) model is constructed and gathers 215 respondents. The results demonstrate that consumers form the highest reliable impression based on utilitarian and negative online reviews. However, there is no relationship between the types of online reviews and the formation of a favorable impression. Findings also reveal that the impression formed by online reviews has a positive effect on re-WOM intention, contributing to brand attitude. In addition, the hypothesis about the moderating effect produced by fashion involvement on re-WOM is supported. In conclusion, these results suggest that online reviews by fashion brand supporters have a powerful effect on forming a consumer's impression towards a fashion brand, affecting re-WOM intention and brand attitude.

• Journal of the Korea Society of Computer and Information
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• v.25 no.11
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• pp.41-50
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• 2020

Sentimental analysis begins with the search for words that determine the sentimentality inherent in data. Managers can understand market sentimentality by analyzing a number of relevant sentiment words which consumers usually tend to use. In this study, we propose exploring performance of feature selection methods embedded with Particle Swarm Optimization Multi Objectives Evolutionary Algorithms. The performance of the feature selection methods was benchmarked with machine learning classifiers such as Decision Tree, Naive Bayesian Network, Support Vector Machine, Random Forest, Bagging, Random Subspace, and Rotation Forest. Our empirical results of opinion mining revealed that the number of features was significantly reduced and the performance was not hurt. In specific, the Support Vector Machine showed the highest accuracy. Random subspace produced the best AUC results.