• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2004년도 춘계 종합학술대회 논문집
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• pp.461-466
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• 2004

최근 공동주택의 지하주차장공간들은 지하공간에 위치한 문제를 차치하고도 많은 다양한 환경적 문제를 가지고 있음에도 불구하고 충분치 못한 공간으로 건축되었다. 이 연구는 스케일모델 측정으로 통하여 지하주차공간의 일광채광정도를 살펴보았다. 결과적으로 4%정도의 개구율에서 기준 조도수준에 미치는 적정한 량의 일광이 채광됨을 알 수 있었다.

• 한국멀티미디어학회논문지
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• 제23권4호
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• pp.558-565
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• 2020

In this study, presents geographic analysis of Heuksando Island We classified each area of the island according to physical attributes. Then, we derived the meaning of each area as a physical space and virtual space. In order to symbolize the events that happens around the spaces, we set directions and relations for those spaces. In this process, we figured the stages of voluntary experience that originates from the user's actions. This study proposes hierarchical categories of virtual environments from spacial reality, experience and the creation of simulacrum.

• 품질경영학회지
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• 제48권2호
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• pp.345-359
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• 2020

Purpose: Financial independence of the museum is an urgent issue in Korea. In this paper, methodology to combine arts and culture facilities with senior society is investigated based on case study of various senior programs in other countries. Methods: In this paper, case study of various senior programs from cultural and arts facilities in other countries are investigated in the aspect of public nature and independent management. Based on the analysis of the case study, optimal methodology is derived. Results: Based on case study of various senior program in other countries, it is clear that art and cultural facilities play important roles in participating elderly people to various social activities through developing programs specialized for elderly people. Conclusion: From analysis of the case study, senior program from arts and culture facilities provides more familiar contents rather than professional contents. Also, they consider more on communication and cooperation with local society to develop the senior program, which fulfill both public nature and financial independence.

• International Journal of Automotive Technology
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• 제7권6호
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• pp.667-673
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• 2006

Diesel particulate matter(DPM) often contains small amounts of metal as a minor component but this metal may contribute to adverse health effects. Knowledge of the mechanism for particle formation as well as the size preference of the trace metals is critical to understanding the potential for health concerns. To achieve this, the size and the composition of each particle should be optimally measured at the same time. Single particle mass spectrometer(SPMS) would be the best tool for this objective. In this paper, we therefore will introduce new findings about the mechanism and distribution of the trace metals in DPM, derived from a study where an SPMS was used to analyze freshly emitted DPM.

• 한국콘텐츠학회논문지
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• 제12권7호
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• pp.445-452
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• 2012

본 연구는 충적하천에서 실측된 현장자료를 이용하여 흐름에 관한 저항계수와 관계식을 분석하고 유도하였으며, 연구에는 자연하천 자료 1,865개와 식생하천 자료 739개가 포함된 2,604개 자료가 사용되었다. 회귀분석에 의해 Manning 조도계수와 Darcy-Weisbach 마찰계수 관계식이 자연하천 하상재료와 식생하천 식생자료의 유량과 마찰경사를 함수로 하는 멱함수 형의 식으로 각각 유도되었다.

• 디지털콘텐츠학회 논문지
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• 제5권3호
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• pp.187-191
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• 2004

모바일 통신 채널의 빠른 변화는 다중 반송파 변조의 성능에 많은 영향을 준다. 본 논문에서는 다중 반송파 CDMA 네트워크의 BER 성능을 분석하였고 등가 신호 대 전체 잡음 전력비를 라이시안 페이딩, 부분대역간섭 다중접속 사용자 간섭채널에서 유도하였다. MC-CDMA 시스템의 역방향 링크 등가 SNIR을 사용하여 MC-CDMA/BPSK 신호의 성능을 부분대역간섭의 점유율과 간섭 전력에 따라서 평가하였다. 그리고 다중반송파 멀티미디어 시스템의 QoS를 향상하기 위한 부분대역간섭의 영향을 종합적으로 연구하였다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2016년도 춘계 종합학술대회 논문집
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• pp.259-260
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• 2016

Our research group, which was organized by the South Korean and Japanese researchers, have carried out research about natural disaster in our regional heritage villages derived from the concept of ICT(information communication technology)-based DPD(disaster prevention design). In this research, we performed simulation analysis on the fire safety diagnosis in Asan-Oeam folk and JeonjuHanok village for developing our research of ICT-based PBD. In order to do this, we used fire simulation program which was developed by BRI(Building Research Institute) of Japan. Based on the results of fire simulation of Asan-Oeam folk and JeonjuHanokvillage, we can demonstrated that the fire which broken out inregional heritage folk village will be easily expanded to adjacent houses, because the house which are built with wood structure.

• 디지털콘텐츠학회 논문지
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• 제11권4호
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• pp.473-478
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• 2010

유비쿼터스 컴퓨팅 기술을 적용한 서비스들이 지속적으로 발전하고 있으며, 이를 사용하기 위한 다양한 기기들 또한 발전하고 있다. 그러나 유비쿼터스 컴퓨팅 서비스(UCS)에 대한 분류가 모호하고 어떠한 평가지표로써 UCS를 평가해야 할지 판단하기 어렵다. 그러므로 본 연구에서는 UCS의 특징과 분류를 정의하고 이에 기반한 평가지표를 도출한다. 또한 도출한 평가지표의 체크리스트를 제안함으로써 UCS를 사용하기 위한 사용자의 선택을 지원한다.

• Journal of Ginseng Research
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• 제7권1호
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• pp.52-62
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• 1983

This study was undertaken to investigate the influence of kinetin and 2, 4-dichlorophenoxyacetic acid on the rate of growth, the contents of RNA, DNA, and protein. And also the effect of plant growth regulator on isoperoxidases in callus derived from root (root-callus) and petiole (petiolecallus) was investigated. The rate of growth in petiole-callus was higher than the rootcallus at 0.1 mg/l kinetin and 1mgfl 2,4-D. At 1mgll kinetic, the rate of growth increased, but at high concentration the rate of growth decreased fast. The contents of RNA, DNA and protein also increased, but it did not coincide with the increase of the growth rate of callus. The isoperoxidases of callus grown at various amounts of 2,4-D and kinetic occurred in an almost fashion, but those of root-callus appeared different from those of petiole-callus.

• Journal of Information Processing Systems
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• 제14권4호
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• pp.904-915
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• 2018

We demonstrate how social media content can be used to predict the unemployment rate, a real-world indicator. We present a novel method for predicting the unemployment rate using social media analysis based on natural language processing and statistical modeling. The system collects social media contents including news articles, blogs, and tweets written in Korean, and then extracts data for modeling using part-of-speech tagging and sentiment analysis techniques. The autoregressive integrated moving average with exogenous variables (ARIMAX) and autoregressive with exogenous variables (ARX) models for unemployment rate prediction are fit using the analyzed data. The proposed method quantifies the social moods expressed in social media contents, whereas the existing methods simply present social tendencies. Our model derived a 27.9% improvement in error reduction compared to a Google Index-based model in the mean absolute percentage error metric.