• 한국측량학회:학술대회논문집
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• 한국측량학회 2003년도 추계학술발표회 논문집
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• pp.423-431
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• 2003

This study presents on generation coefficients of the RFM using GEO-level stereo images of the IKONOS satellite. 3-D positioning and DEM generation of this model on the test field. In result, the maximum error of image coordinates acquired by the upward transform of the RFM did nat exceed 8 pixels. DEM was generated with kriging interpolation extracted three dimensional ground coordinate to rational quadratic function form, me compared it to reference digital elevation model made from 1:5,000 digital map and 1:1,000 digital map, and so, could generate digital elevation model in the accuracy as average RMSE of elevation was ${\pm}$ 3∼5 m in RFM.

• 한국항행학회논문지
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• 제13권6호
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• pp.984-990
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• 2009

하프토닝은 단색으로 다양한 계조의 색단계를 표현하는 방법으로 인쇄 매체와 같은 분야에서 제한된 색으로 다양한 톤을 표현할 수 있도록 해주는 매우 중요한 영상처리기법이다. 본 논문에서는 공간채움곡선 (Space-Filling Curve)에 의한 하프토닝 방법의 대안으로 미로 생성 알고리즘에 기반한 새로운 하프토닝 방법을 제안한다. 기존의 공간채움곡선에 의한 오류 확산방법은 규칙적인 스캔 패턴으로 인해 해프토닝의 결과에도 규칙적인 패턴이 발생한다. 이러한 부분을 개선하기 위해 공간채움곡선 대신 미로의 경로를 사용함으로써 규칙적인 패턴을 제거하였다.

• 한국의류학회지
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• 제45권2호
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• pp.217-232
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• 2021

This study analyzed the characteristics of generation Z leading the trend of the fashion industry through the creative activity of Virgil Abloh. A literature review and case study were conducted together with detailing the research methodology. As a result of research, generation Z is conceptualized as a "digital native" who grows in digital technology environment with excellent visual sense. They are "SNS creators" who have influence on Social Networking Services (SNS). They are also characterized as "social activists" who reject social conventions and prejudices. They are a "leading creators" who seek to differentiate with creativity. The characteristics of generation Z in the creative activities of Virgil Abloh have a feature of digital native in that they seek visual originality. In terms of communicating with generation Z through SNS and influencer marketing, it has the characteristics of SNS creators. It expresses social activists in providing consumers with diversity, and social perceptions of differentiation. In terms of providing content that encourages consumers to express their personality, it has a feature of leading creators. It is meaningful in that it contributes to the understanding of the market change and marketing strategy according to the consumer development and the activity of the fashion designer.

• 한국엔터테인먼트산업학회논문지
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• 제13권7호
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• pp.39-60
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• 2019

본 연구는 디지털 융합 세대의 뉴미디어를 이용한 새로운 정치참여 유형을 살펴보는 것이 목적이다. 이를 위해 연령과 다매체 이용 동기에 따라 집단을 구분하여 이들 집단 간에 미디어 관련 성향, SNS 및 스마트폰 이용 특성, 정치 관련 특성, 그리고 유형별 정치참여의 차이가 존재하는가를 조사하였다. 연구결과는 세대별 미디어이용 특성은 다매체 이용동기의 높고 낮음에 따라 집단 간 차이를 보였고, 정치 관련 특성과 정치참여 유형에 대한 세대별 차이가 있었다. 디지털 세대는 웹 1.0세대보다 정치관여도와 정치효능감이 낮은 것으로 나타났고, 웹 1.0세대에 비해 오프라인 정치참여가 낮은 것으로 나타났다. 또한 정치효능감은 유형별 정치참여 행위에 가장 큰 영향을 주는 조절효과를 가지는 것으로 나타났다.

• 스마트미디어저널
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• 제8권3호
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• pp.80-87
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• 2019

노년세대는 발달과제인 '자아통합감'을 이루기 위해 기억, 평가, 종합의 역동적인 과정인 '인생회고'가 필요하다. 자서전 쓰기는 사고양상으로서 내러티브를 기반으로 인생회고의 도구 역할을 해왔다. 본 연구는 뉴실버세대에게 디지털 자서전이 자아통합감을 이루는 도구로서 본래의 역할을 충분히 할 수 있도록 고려해야 할 점을 모색하고자 한다. 이를 위해, 인생회고로 자아통합감을 이뤄가는 과정에 관한 이론들을 먼저 살펴보고, 자서전 쓰기의 양상 및 내러티브의 3가지 개념과 자서전적 글쓰기의 구성자질을 고찰할 것이다. 다음으로, 디지털 내러티브를 기반으로 한 디지털 자서전의 특징을 살펴보고, 뉴실버세대의 디지털 자서전 연구를 위한 고려 사항을 제안한다.

• 한국정보시스템학회지:정보시스템연구
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• 제31권1호
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• pp.115-146
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• 2022

Purpose The purpose of this study is to find meaningful insights using regression analysis to resolve the digital divide between generations. In the analysis process of this study, social network analysis was applied to approach it with a perspective differentiated from the existing statistical techniques. Design/methodology/approach This study used a social network analysis methodology that transforms and analyzes government-led survey data into relational data. First, the cross-sectional data were converted into relational data, and a continuous core-periphery model and multidimensional scaling method were applied. Afterwards, the relationship between various factors affecting the digital divide and the difference in influence were analyzed by generation. Findings According to the network analysis results, it can be seen that all generations commonly use 'information and news search' and 'living information service'. However, it can be seen that the centrally used services of each generation are clearly different from each other, and the degree of linkage between the services is also clearly different. In addition, it can be seen that the relationship between factors influencing the digital divide by generation is also different.

• 한국산업융합학회 논문집
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• 제26권3호
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• pp.401-409
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• 2023

Oscillating water column (OWC) type wave power generator system is a power generation system that uses wave energy, a sustainable and renewable energy source. Irregular cycles and wave heights act as factors that make it difficult to secure generation efficiency of the wave power generator system. Recently, research for improving power generation efficiency is being conducted by applying digital twin technology to OWC type wave energy converter system. However, digital twin using sensor data can predict erroneous performance due to uncertainty in the sensor data. Therefore, this study proposes an uncertainty analysis method for sensor data which is used in digital twin to secure the reliability of digital twin prediction results. Uncertainty quantification considering sensor data characteristics and future uncertainty information according to uncertainty propagation were derived mathematically, and confidence interval estimation was performed based on the proposed method.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.365-368
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• 2006

The objective of this research is to investigate usage of 3KW photovoltaic-wind power hybrid generation system composed of 500W solar power generator and 400W wind power generator in a parallel circuit. In addition, solar radiation meter and wind monitor have been installed into each generation system to obtain the practical operating data that monitored in monthly, daily and hourly. These data that are independent to weather change and location would provide adequate generation output on average and cope with emergency situation in generation system In conclusion, based on this study, it could be considered for 3KW combined generation system to be gradually propagated to houses and small-size public facilities.

• 디지털산업정보학회논문지
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• 제14권4호
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• pp.163-168
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• 2018

In this paper presents comparison of performance of flexible solar cells construction applied to curtain walls. The proposed paper compares power generation for curtain walls of various shapes using flexible PV. Through the comparison of performance, the power generation was compared by installing various types of flexible PV on the air layer of double windows. By comparing the measured power generation, it is possible to find an optimal flexible PV shape that can be applied to a curtain wall. Flexible PV installation was divided into diagonal, S and W shapes. As a result of comparison, the amount of power generation when there was no flexure of flexible PV was large. Also, as the angle with the light source increased, the power generation decreased. Therefore, it is necessary to study the structure which can fix the PV more than the flexible PV and to be able to direct the sun without distortion.

• 대한건축학회연합논문집
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• 제21권5호
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• pp.161-168
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• 2019

The use of various digital tools makes freeform modeling possible. At the same time, with the development of structural and construction technologies, Free-Form Architecture are beginning to be implemented realized, as the desired data extraction such as the size and coordinate points of the members is possible. Currently, in many cities around the world, Irregular-Shaped High-rise Buildings, which express the dynamic symbolism, are recognized for their landmark values. In order to realize the Irregular-Shaped High-rise Buildings, it is necessary to understand various fields such as the characteristics of digital tools, digital technique logic, design process, and construction method. In particular, it is important to plan Irregular-Shaped High-rise Buildings so that the various types of efficiency can be reviewed together, while generating understanding and formations from the initial design stage. Therefore, this study uses conceptual and parametric design tools related to form generation in digital architecture to analyze the details, methods, and characteristics of the Irregular-Shaped High-rise Buildings form generation process. In this paper, the parametric design tool is applied to study the various types of design and the process characteristics that can be considered in the initial design stage of the unstructured skyscraper.