• ETRI Journal
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• 제28권4호
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• pp.513-516
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• 2006

Experimental demonstration of bipolar spectral encoding code-division multiple-access with modified pseudorandom noise codes is presented. Bipolar spectral encoding is achieved with an erbium-doped fiber amplifier amplified spontaneous emission source and arrayed waveguide gratings. The bit-error rate performance of 1.25 Gbps signal transmission over 80 km single mode fiber is measured in a multiple-user environment.

• ETRI Journal
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• 제31권6호
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• pp.653-659
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• 2009

We have investigated the channel protection layer (PL) effect on the performance of an oxide thin film transistor (TFT) with a staggered top gate ZnO TFT and Al-doped zinc tin oxide (AZTO) TFT. Deposition of an ultra-thin PL on oxide semiconductor films enables TFTs to behave well by protecting the channel from a photo-resist (PR) stripper which removes the depleted surface of the active layer and increases the carrier amount in the channel. In addition, adopting a PL prevents channel contamination from the organic PR and results in high mobility and small subthreshold swings. The PL process plays a critical role in the performance of oxide TFTs. When a plasma process is introduced on the surface of an active layer during the PL process, and as the plasma power is increased, the TFT characteristics degrade, resulting in lower mobility and higher threshold voltage. Therefore, it is very important to form an interface using a minimized plasma process.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.67-70
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• 2009

Printed electronics are emerging technology to realize various microelectronic devices via a cost-effective method. Here we introduce high performance inkjet printed polymer field-effect transistors and application to complementary integrated circuits with p-type and n-type conjugated polymers. The performance of devices highly depends on the selection of dielectrics, printing condition and device architecture. The device optimization and performances of various integrated circuits, e.g., complementary inverters and ring oscillators will be mainly discussed in this talk.

• 한국정보시스템학회지:정보시스템연구
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• 제29권3호
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• pp.197-214
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• 2020

Purpose This study examines the influence of product development competence and IT competence on new product development (NPD) performance in the context of Korean companies. To achieve this goal, this study presents and empirically tests a model of how NPD competence and IT competence can be exploited to positively influence NPD performance through convergence capabilities. Design/methodology/approach The NPD competence are based on the research construct developed by Zhang et al. (2013). IT competence is based on the research construct developed by Lu and Ramamurthy(2011) and the NPD performance are based on the performance construct developed by Sivadas and Dwyer (2000). To complete the investigation, we conducted a survey from Korean 1000 big companies, which enrolled in Korean stock market. Randomly contacted 171 Korean companies, including firms of all sizes and types. To test our hypotheses, structured equation model (SEM) with partial least squares (PLS) method was employed. Findings The findings indicate that NPD competence and IT competence are antecedent to convergence capabilities, while IT competence is higher influence than NPD competence. Also, convergence capabilities has very significant relationship with NPD performance. This study provides a better understanding of the relationship between NPD competence, IT competence, convergence capabilities, and NPD performance. So companies should focus on improving NPD and IT competence on NPD performance through convergence capabilities.

• 한국콘텐츠학회논문지
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• 제18권6호
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• pp.667-678
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• 2018

본 연구는 인문사회기반 융합연구성과에 영향을 미치는 요인을 실증적으로 규명하고자 하였다. 이를 위해 융합연구성과 영향요인으로 개인특성, 연구환경요인, 연구자요인, 연구팀요인, 지원기관요인을 설정하였으며, 인문사회기반 융합연구를 진행하고 있는 연구자를 대상으로 설문조사를 실시하였다. 분석결과 인문사회기반 융합연구에 영향을 미치는 요인은 연구자요인, 지원기관요인, 연구환경요인 중 연구분야(전공)인 것으로 나타났으며, 이들 요인이 융합연구성과에 미치는 설명력은 51.6%인 것으로 나타났다. 연구결과를 통해 도출한 시사점은 첫째, 인문사회기반 융합연구의 경우 융합연구의 성과에 있어 연구팀 요인보다는 연구자 개인요인이 중요요인인 것으로 나타났다. 둘째, 지원기관은 융합연구성과에 대한 지속적적인 관리를 통해 융합연구성과를 높일 수 있다. 셋째, 연구자의 연구분야(전공) 또한 융합연구성과에 영향을 미치므로, 융합연구 연구팀 구성에 있어 연구분야(전공) 또한 중요하게 고려되어야 한다.

• 한국콘텐츠학회논문지
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• 제20권4호
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• pp.49-61
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• 2020

최근 공연예술에서 장르 융합형 콜라보레이션과 기술 융합형 콜라보레이션의 물리적인 융합(convergence)은 서로 다른 목표와 이질적인 속성을 전략적으로 융합시킴으로서 대중의 기대수요에 부응하며 새로운 가치의 융합 콘텐츠를 이끌어내는 실험적인 형태로 발전하고 있다. 융합시도 중 발생되는 문제점을 보완하며 공연의 완성도를 높이기 위해서는 각 매체분야 전문가들의 효율적인 협업과정이 연구되고 개선되어야 한다. 본 논문에서는 다매체 융합공연 프로토타입(Prototype) 제작을 통해 시대의 요구에 상응하는 융합공연의 효율적인 협업제작방안을 연구하고자 한다. 공연제작과정을 프리프로덕션(Pre-Production), 프로덕션(Production)으로 분류하여 라이브 연극과 사전제작 영상 애니메이션, 두 매체를 활용한 융합공연의 효율적인 협업제작과정을 작품선정 및 연출방향 설정, 인적구성, 제작일정 계획수립, 시각화과정, 공연연습 및 리허설 등의 과정으로 연구하고자 한다. 융합공연 콘텐츠 기획, 제작방식의 변화, 융합 콘텐츠 간 특수성의 이해를 바탕으로 지속적인 다매체 융합공연을 위한 효율적인 협업제작과정 연구가 진행되어야 융합 콘텐츠 산업 발전 체계화 및 활성화가 가능할 것이다.

• 한국융합학회논문지
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• 제11권3호
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• pp.211-218
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• 2020

본 연구는 국가과학기술연구회에서 운영하는 융합연구사업과 출연(연)에서 수행하는 일반 수탁연구사업의 연구 성과에 대해 효율성을 비교 분석하였으며 이를 통해 융합연구 운영 및 관리의 효율성 제고 방안을 제시하고자 하였다. 연구데이터는 정보공개청구를 통해 21개 정부출연연구기관을 대상으로 수집되었고 효율성 평가를 위해 DEA 분석을 실행하였다. 분석결과 융합연구의 SCI 논문은 높은 효율성을 나타냈고 특허등록과 기술이전 부문은 일반연구사업이 높은 효율성을 나타냈다. 이는 선도 및 원천기술 확보를 위한 융합연구사업이 당초 목적에서 부합되는 높은 효율성을 나타내고 있으나, 이로 인해 파생되는 기술의 활용도 면에서는 기업들의 참여 부족 등으로 그 성과가 낮은바, 융합연구 결과의 실용화를 위해 보다 많은 기업의 참여와 기회가 필요함을 시사한다. 본 연구는 융합연구사업 성과의 효율성 분석을 통해 제한된 인력 및 연구비용의 합리적인 투자를 위한 R&D 기획 및 정책에 활용 지침을 제공하였다. 또한, 융합연구 관리 방안으로서 융합연구의 대상 기술 유형에 따라 효율성 파악에 관한 미래 연구를 제안하고 있다.

• 한국정보시스템학회지:정보시스템연구
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• 제26권3호
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• pp.1-23
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• 2017

Purpose With the advent of the 4th Industrial Revolution era, ICT convergence industry is leading the wave of new change. These changes in the industrial field are recognizing convergence as a strategic cooperation tool of management for creating new value. In order to achieve the research purpose, conceptual understanding of ICT convergence is summarized by focusing on concepts, features, types and cases. In addition, this study established the theoretical rationale for the determinants of ICT convergence performance, and examined previous researches related to ICT convergence. Design/methodology/approach The empirical research method is based on a survey of 510 companies including managers and mid-level practitioners who understand the contents of the relevant field, 305 data were used for analysis. We conducted exploratory factor analysis to verify the grouping of these questionnaire items and conducted confirmatory factor analysis to analyze the validity and reliability of the measurement model. Through the statistical analysis, we analyzed the structural relationship of ICT firms' competencies for convergence performance. Findings Linkage of ICT strategies established by corporations is an important factor for enhancing resource capacity and convergence ability. It is important to ensure that product innovation, consumer-oriented strategies, and ICT strategies for the implementation of business strategies are closely linked. In addition, in the convergence environment, companies should make efforts to develop convergence ability and improve organizational performance through utilization of ICT resources. From the CEO's perspective, it is necessary to understand the knowledge, technology and resources arising from the convergence environment, and to integrate with the resources possessed by the enterprise to induce the organization's performance.

• 한국멀티미디어학회논문지
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• 제18권12호
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• pp.1432-1438
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• 2015

We present a methodology to detect moving shadows in video sequences, which is considered as a challenging and critical problem in the most visual surveillance systems since 1980s. While most previous moving shadow detection methods used hand-crafted features such as chromaticity, physical properties, geometry, or combination thereof, our method can automatically learn features to classify whether image segments are shadow or foreground by using a deep learning architecture. Furthermore, applying Markov Random Field enables our system to refine our shadow detection results to improve its performance. Our algorithm is applied to five different challenging datasets of moving shadow detection, and its performance is comparable to that of state-of-the-art approaches.

• ETRI Journal
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• 제33권6호
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• pp.969-972
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• 2011

This letter presents a CMOS RF front-end operating in a subthreshold region for low-power Band-III mobile TV applications. The performance and feasibility of the RF front-end are verified by integrating with a low-IF RF tuner fabricated in a 0.13-${\mu}m$ CMOS technology. The RF front-end achieves the measured noise figure of 4.4 dB and a wide gain control range of 68.7 dB with a maximum gain of 54.7 dB. The power consumption of the RF front-end is 13.8 mW from a 1.2 V supply.