• 제목/요약/키워드: Content convergence technology

검색결과 1,003건 처리시간 0.026초

Study of Multiple Interface Control and Dynamic Delivery Model for Seamless Mobile Transportation

  • Lee, Seon-Ung;Moon, Il-Young
    • Journal of information and communication convergence engineering
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    • 제8권4호
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    • pp.399-404
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    • 2010
  • We propose a seamless IPTV transport technology of mobile device. This technology uses multiple interfaces of wireless communication on mobile device. This proposal for transportation of mobile IPTV contents is more mobile and adaptable than other wireless technologies that are currently being used. Algorithm of proposed technology is as follow. When the signal strength of the connected wireless network interface of mobile device is getting lower than specified level, another wireless network interface is connected to continue downloading the IPTV contents in advance. Another connection is maintained until the signal strength of the first connected interface is stable or the interface is connected to another base station (or AP) that have good signal strength. For more seamless services, we consider classifying the packets of mobile IPTV and using dynamic content quality select techniques. Dynamic content quality selection is based on notifying transfer rate to the content delivery network (CDN) server. The proposed technology is expected to use efficiently with both mobile IPTV and the transportation of mobile P2P/P4P.

온라인 학습을 위한 학생 피드백 분석 기반 콘텐츠 재구성 추천 프레임워크 (Restructure Recommendation Framework for Online Learning Content using Student Feedback Analysis)

  • 최자령;김수인;임순범
    • 한국멀티미디어학회논문지
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    • 제21권11호
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    • pp.1353-1361
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    • 2018
  • With the availability of real-time educational data collection and analysis techniques, the education paradigm is shifting from educator-centric to data-driven lectures. However, most offline and online education frameworks collect students' feedback from question-answering data that can summarize their understanding but requires instructor's attention when students need additional help during lectures. This paper proposes a content restructure recommendation framework based on collected student feedback. We list the types of student feedback and implement a web-based framework that collects both implicit and explicit feedback for content restructuring. With a case study of four-week lectures with 50 students, we analyze the pattern of student feedback and quantitatively validate the effect of the proposed content restructuring measured by the level of student engagement.

A study on the expansibility of sound-responsive visual art contents

  • Jiang, Qianqian;Chung, Jean-Hun
    • International journal of advanced smart convergence
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    • 제11권2호
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    • pp.88-94
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    • 2022
  • The relationship between sound and vision was experimentally confirmed by physicist Ernst Florens Friedrich Chladni as early as the 18th century and formally entered into systematic research. With the development of emerging media technology, sound reactive type visual content is not limited to a single visual interaction based on the vibration of sound, and its visual content shows a diversified and scalable development trend according to different purposes in many fields. This study analyzes the development and changes of sound visual art contents from early stage to modernization, and analyzes the development characteristic of sound visual art content in different fields and scene environments influence by interactive media, new media technologies and devices by means of case analysis. Through this research, it is expected that the sound reactive type visual art content can continue to develop and extend in the existing fields, while explore the scalability of the application of sound reactive type visual art content in more fields.

과학문화콘텐츠 구성을 기반으로 한 융합형 교육 프로그램의 개발 방안 (The Development of the Convergence Education Program based on the Creation of Scientific and Cultural Content)

  • 조남민;김소륜;손달임
    • 한국콘텐츠학회논문지
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    • 제15권1호
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    • pp.506-518
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    • 2015
  • 최근 우리 사회 전반에서 융복합의 개념이 새로운 가치 창출의 가능성으로 주목받게 되면서, 지식 통합에 대한 요구도 점차 확장되고 있다. 지식과 학문 분야에서 시대적 요구가 변화함에 따라 인재가 갖추어야 할 역량은 물론, 새로운 인재를 양성하기 위한 교육의 패러다임도 바뀌고 있는 것이다. 특히 이공계 대학에서는 전공 지식의 습득을 넘어, 종합적 사고력과 협동 학습 능력을 갖춘 인재 양성을 목표로 '학제 간 융복합 교육'이 확대 실시되고 있는 추세이다. 전공 지식과 현장 실무 능력을 강조함으로써 취업률을 높이는 것만이 아니라, 학생들에게 발견적 창의적 융합적 사고의 바탕이 되는 인문학적 교양과 세계관에 대한 이해를 제공하기 위해서이다. 그러나 현재 전공 및 교양 교육 차원에서 개설된 융합 교과목의 대부분은 타 학문 분야의 지식이나 이론을 소재나 화제로 활용함으로써, 단편적인 지식 습득 차원에 머무르는 경향이 강하다. 이에 본고에서는 과학기술 분야와 인문학 분야의 지식을 균형적으로 통합하여 종합적으로 사고함으로써, 지식 습득에서 한 단계 더 나아가 지식을 응용 재창조 할 수 있는 '융합형 교육 프로그램'을 구안(具案)하였다. 이 프로그램은 문화콘텐츠의 창조를 전제했을 때 유용한 '과학기술'과 '문화 원형'에 대한 이해를 제공하고, 습득된 지식을 가치 있는 결과물로 도출하기 위한 방법으로 '스토리텔링' 학습을 제안한다. 이를 통해 학습자는 과학 기술과 인문 분야를 융합할 수 있는 매개인 '과학문화콘텐츠'를 구성하기 위한 교육을 제공받게 된다. 이로써 전공 지식에 대한 탐구와 응용을 시도하는 가운데, 논리적 창의적 사고를 진작하게 될 것이다. 더불어 그간 과학과 인문학이라는 두 영역을 대상으로 한 '다학제적 교육'이 갖는 한계를 극복할 수 있으리라 본다.

Delphi를 활용한 융합 서비스 설계에 관한 연구 : 은행지점 도입용 금융 서비스 로봇 사례 (Convergence Service Design Using Delphi Technique : Financial Service Robot for Introduction to Bank Branches)

  • 송영규;이정우;한창희
    • 한국IT서비스학회지
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    • 제19권3호
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    • pp.1-15
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    • 2020
  • This study applies the Delphi method to design services with convergence characteristics in the financial sector. In designing a service robot for practical deployment that can support and replace bank teller, the opinions and judgments of various expert groups were extracted and a consensus process was made through feedback. A total of six dimensions and thirty service elements were derived over three rounds. Coefficient of Variation and content validity were used to verify the suitability and reliability of the selected service elements. As a result, the essential service element of robots was interaction with customers, followed by basic and professional financial services. Based on these service factors, we proposed two types of service models. support mode to assist employees during business hours and alternative mode on behalf of employees outside business hours. It is hoped that this study will use the Delphi technique in the design of IT convergence services.

에폭시/나일론6 블랜드의 경화 동력학 및 열안정성에 관한 연구 (Studies on Cure Kinetics and Thermal Stability of Epoxy/Nylon 6 Blend)

  • 김동규;김관우;한웅;곽이구;김병주
    • 공업화학
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    • 제26권5호
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    • pp.538-542
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    • 2015
  • 본 연구에서는 epoxy (Diglycidylether of bisphenol-A, DGEBA)에 대한 nylon 6의 혼합비가 각각 0, 10, 20, 30, 40 wt%로 블랜딩한 혼합 수지를 시차 주사 열량계(DSC)와 열 중량 분석(TGA)을 사용하여 경화 동력학 및 열안정성에 관하여 연구하였다. 실험 결과, nylon 6의 함량이 증가함에 따라 최대 발열 온도($T_{max}$)가 낮아지며, 경화 활성화 에너지($E_a$) 값은 감소하였다. 이는, nylon 6의 함량이 증가함에 따라 DGEBA와 결합이 빠르게 이루어져 최대 발열 온도에 영향을 미친다고 판단된다. DGEBA/nylon 6의 TGA 분석 결과 nylon 6의 함량이 증가할수록 열안정지수($A^*{\cdot}K^*$) 및 적분 열분해 진행 온도(IPDT)에 입각한 열안정성이 증가하였다. 이러한 결과는 내열성이 우수한 nylon 6가 DGEBA와 결합하여 DGEBA/nylon 6 내부에 유입되는 열을 흡수하고, 열전달 및 확산을 제어하여 열안정성 인자들의 값이 증가되는 것으로 판단된다.

재조합 대장균에서 새로운 코엔자임 에이 트랜스퍼레이즈를 이용한 젖산을 모노머로 함유한 폴리하이드록시알칸산 생산 연구 (Biosynthesis of Lactate-containing Polyhydroxyalkanoates in Recombinant Escherichia coli by Employing New CoA Transferases)

  • 김유진;채철기;강경희;오영훈;주정찬;송봉근;이상엽;박시재
    • KSBB Journal
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    • 제31권1호
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    • pp.27-32
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    • 2016
  • Several CoA transferases from Clostridium beijerinckii, C. perfringens and Klebsiella pneumoniae were examined for biosynthesis of lactate-containing polyhydroxyalkanoates (PHAs) in recombinant Escherichia coli XL1-Blue strain. The CB3819 gene and the CB4543 gene from C. beijerinckii, the pct gene from C. perfringens and the pct gene from K. pneumoniae, which encodes putative CoA transferase gene, respectively, was co-expressed with the Pseudomonas sp. MBEL 6-19 phaC1437 gene encoding engineered Pseudomonas sp. MBEL 6-19 PHA synthase 1 ($PhaC1_{Ps6-19}$) to examine its activity for the construction of key metabolic pathway to produce poly(3-hydroxybutyrate-co-lactate) [P(3HB-co-LA)]. The recombinant E. coli XL1-Blue expressing the phaC1437 gene and CB3819 gene synthesized poly(3-hydroxybutyrate) [P(3HB)] homopolymer to the P(3HB) content of 60.5 wt% when it was cultured in a chemically defined medium containing 20 g/L of glucose and 2 g/L of sodium 3-hydroxybutyrate. Expression of the phaC1437 gene and CB4543 gene in recombinant E. coli XL1-Blue also produced P(3HB) homopolymer to the P(3HB) content of 51.2 wt% in the same culture condition. Expression of the phaC1437 gene and the K. pneumoniae pct gene in recombinant E. coli XL1-Blue could not result in the production of PHAs in the same culture condition. However, the recombinant E. coli XL1-Blue expressing the phaC1437 gene and the C. perfringens gene could produce poly(3-hydroxybutyrate-co-lactate [P(86.4mol%3HB-co-13.7 mol%LA) up to the PHA content of 10.6 wt% in the same culture condition. Newly examined CoA transfereases in this study may be useful for the construction of engineered E. coli strains to produce PHA containing novel monomer such lactate.

Dynamic Multi-frame Transmission Technology Using the WiMedia MAC for Multi-hop N-screen Services

  • Hur, Kyeong
    • Journal of information and communication convergence engineering
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    • 제14권1호
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    • pp.21-25
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    • 2016
  • N-screen is a promising technology to improve support for multimedia multicasting, content sharing, content mobility, media scalability, and seamless mobility. In this paper, the WiMedia distributed-MAC (D-MAC) protocol is adopted for development of a seamless N-screen wireless service. Furthermore, to provide a multi-hop, one source multi-use N-screen service through point to point streaming in a seamless D-MAC protocol, a dynamic multi-frame transmission technology is proposed. In this technology, a dynamic time slot allocation scheme and a multi-hop resource reservation scheme are combined. In the proposed dynamic time slot allocation scheme, two thresholds, a hard threshold and a soft threshold, are included to satisfy the power consumption and delay requirements. A multi-frame DRP reservation scheme is proposed to minimize end-to-end delay during the multi-hop transmissions between N-screen devices. The proposed dynamic multi-frame transmission scheme enhances N-screen performance in terms of the multi-hop link establishment success rate and link establishment time compared to the conventional WiMedia D-MAC system.

A Proposal of Interactive Contents for Prevention of Smartphone Overdependence

  • Kim, Jae Sun;Lim, Chan
    • International Journal of Advanced Culture Technology
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    • 제7권1호
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    • pp.70-76
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    • 2019
  • IoT technology application has been part of modern people's everyday life. This technology makes people to depend on smart devices. 'Smartphone' is the most typical example. Despite the advantages given by this device, the bad side effects are also notable. This paper presents interactive content on the dependence of smartphone device. The research objective is to make individuals to reduce the use of smartphones by realizing their own problems of smartphone dependency. Research was progressed by analyzing aspects obtained from users participating in the self-developed interactive game contents. As a result of the analysis, approximately 68% of people were aware of the problem through this content. This indicates the potential of using convergence research in interactive contents with other fields furthermore.

Interactive MR Contents for Alternative Suggestions for Smartphone

  • Chan Lim
    • International Journal of Advanced Culture Technology
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    • 제11권1호
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    • pp.276-282
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    • 2023
  • IoT technology application has been part of modern people's everyday life. This technology makes people to depend on smart devices. 'Smartphone' is the most typical example. Despite the advantages given by this device, the bad side effects are also notable. This paper presents interactive content on the dependence of smartphone device. The research objective is to make individuals to reduce the use of smartphones by realizing their own problems of smartphone dependency. Research was progressed by analyzing aspects obtained from users participating in the self-developed interactive game contents. As a result of the analysis, approximately 68% of people were aware of the problem through this content. This indicates the potential of using convergence research in interactive contents with other fields furthermore.