• 감성과학
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• 제6권1호
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• pp.39-45
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• 2003

본 연구에서는 단순노무직, 판매직, 전문직에 종사하는 피험자를 대상으로 100%의 basil oil, lavender oil, lemon oil, jasmine oil, ylang-ylang oil (KIMEX co. Ltd, Korea), skatole (TAKASAGO co. Ltd, Japan)등 총 6가지 종류의 천연향에 대한 두뇌의 정보량 흐름을 파악하기 위해 상호 정보량을 검토하였다. 그 결과, 전문직에서는 상호 정보량의 유의한 변화가 전두엽 사이(F3F4)에서 나타난 반면, 단순노무직과 판매직에서는 전두엽(F3F4), 두정엽(P3P4), 측두엽(T5T6) 사이에서 모두 나타났다 두 직종과 비교하여 전문직이 주로 외부 자극에 대한 고차원적 기능을 담당하는 전두엽영역의 정보량에서 유의한 변화를 보인 것은 향을 전문적으로 구분하고, 확인하는 그들의 직업적 특성을 반영한 결과라 추측된다. 또한, 단순노무직과 달리, 전문직과 판매직은 선호도가 낮은 향에서 상호 정보량이 증가하는 경향을 보여, 향 관련 종사자들의 선호도와 상호 정보량간의 관련성을 시사하였다.

• 한국위성정보통신학회논문지
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• 제8권4호
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• pp.70-74
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• 2013

최근 모바일 디바이스 보급의 확산으로 다양한 기종의 디바이스를 다수 보유중인 사용자의 수가 지속적으로 증가하고 있는 추세이다. 이에 따라 하나의 미디어 콘텐츠를 사용자가 보유한 다양한 기기에서 서로 공유해야 할 필요성이 증가하고 있으며, 이는 연결성, 이동성, 통합성 기반의 N-screen 서비스의 확대를 가지고 왔다. N-screen 서비스는 하나의 미디어 콘텐츠를 공유하여 사용자가 보유한 다양한 디바이스에서 서로 이어보기가 가능하게끔 서비스를 제공한다. 그러나 N-screen 서비스들은 서비스 제공 사업자의 전용 플랫폼에서 시행되는 문제점을 가지고 있다. 따라서 본 논문은 개방형 서비스 플랫폼에서의 이어보기 기능의 설계를 위하여 시험적으로 이어보기 기능을 제공하는 RESTful 기반의 이어보기 기능 제공이 가능한 프로토타입 프로그램을 개발하였으며 동작검증은 Android - PC간 시행하였다.

• International Journal of Knowledge Content Development & Technology
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• 제11권2호
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• pp.37-54
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• 2021

The study determined the access, skills and constraints towards the usage of ICT among barangay officials. A complete enumeration technique was used due to the small size of the population. A total of 121 barangay secretaries and barangay treasurers comprised the study respondents. The findings revealed that most of barangay officials have access to personal computer at home and in the office using their own mobile data and office internet connectivity. With the support from the Local Government Unit (LGU), it was found that most of the respondents are advance and proficient in computer usage. As constraints to ICT usage, the study respondents still experienced slow internet bandwidth that makes connection and communication weak along with the low income status. Consequently, it was found that there were no significant differences in terms of skills and constraints among barangay secretaries and barangay treasurers towards using ICT. It can be concluded that study respondents prefer to use office computer to access the information they need due to the convenience and availability of resources. The study respondents were competent enough to handle their job well but listed slow internet and low financial resources may hamper their ICT usage. Research implications were also offered.

• International Journal of Knowledge Content Development & Technology
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• 제12권1호
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• pp.67-83
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• 2022

This study aims to evaluate some academic institutional repositories (IRs) in Ghana. Data were collected using observation and interview methods by examining the various websites of seven (7) selected academic institutional repositories in Ghana. The findings revealed that the University of Ghana, Legon, leads records count of the seven Institutional Repository (IRs) examined. Dspace was the prioritized software for managing and preserving the digital contents of these IRs. Theses, dissertations and research articles were the leading contents deposited on the IRs. The majority of the IRs have incorporated RSS (Rich Site Summary or Really Simple Syndication) feeds on their IRs with few using other Web 2.0 features. English was the only interface language used on all the IRs. From the interview, the findings revealed that most of the faculty members did not use the IR very often and 9(42.9) also indicated that, they have never deposited their materials on the IR. Faculty members again indicated that, inadequate ICT connectivity and infrastructure, unreliable power supply, Copyrights and intellectual rights, financial constrain, inadequate advocacy and training on the importance of IRs to faculty and users were the major challenges of academic libraries in operating IRs in Ghana.

• 한국초전도저온공학회:학술대회논문집
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• 한국초전도저온공학회 1999년도 제1회 학술대회논문집(KIASC 1st conference 99)
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• pp.3-9
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• 1999

The grain morphology, the changes in morphology and Jc with the thermo-mechanical treatment (TMT) history, the field dependence of Jc and the nature of intergranular bonding were studied in $T_{10.8}$$Pb_{.2}$$Bi_{0.2}$$Sr_{1.8}$$Ba_{0.2}$$Ca_{2.2}$$Cu_{3}$$O_{z}$/Ag tapes. As a result, incorporation of intermediate rolling during the final heat-treatment resulted in of plate-like TI-1223 grains, and thus enhanced Jc. Jc's near 2.5$\times$104 A/cm2 at 77 K and 0 T were obtained in just rolled tapes with an excellent reproducibility. The high Jc's seem to grain-connectivity easy recovery of excellent grain-connectivity during final heat-treatment after inter -mediate rolling, probably due to retarded T1 evaporation and excessive Ca content in the present composition. The strong field dependence of Jc even in low fields, however, indicated that there still existed significant weak-links and the degree of directional grain-alignment was far from the desired one. The intergranular binding in the tapes seemed to be mainly dominated by SIS junctions.

• 한국초등과학교육학회지:초등과학교육
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• 제24권5호특별호
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• pp.620-626
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• 2005

In this study, we conducted a comparative study to investigate the curriculums on electricity and magnetism between in Korean and in Ontario elementary schools in Canada with respect to connectivity and difference among course materials with grades. We compared textbooks that contain the contents about electricity and magnetism, and connectivity in curriculums that were relevant to the science content system in each country. We report the following differences in the curriculums on electricity and magnetism in each country. First, it turns out that science is taught from the first grade in Ontario, while it is taught from the third grade in Korea. Second, Ontario covers electricity and magnetism only in science curriculum, while Korea covers the same topics both in the science and practical arts curriculum. Third, while the curriculum in Korea introduces 'a magnet' in the third grade, 'electricity' in the fourth and the fifth grade, and 'an electromagnet' in the sixth grade, while the curriculum in Ontario covers the concept of energy from the first grade. As the grades go up, the contents of electricity and magnetism tend to be more deepen. It also emphasizes enhancing students' ability that they can communicate what they learn about technology with others, and that they can apply their knowledge to other fields as well. Based on this study of the Ontario curriculum, we suggest that it is necessary for us to n Science curriculum from the first grade, so that the students can learn science from the early grade, without a need to run another subject, like practical arts. We also found that the Korean curriculum has an interesting structure for the young students to learn to apply their knowledge to the real life immediately, based on an idea that the topic of 'Manipulating the electric appliances' in practical arts curriculum moves to the Science.

• 스마트미디어저널
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• 제10권2호
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• pp.84-91
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• 2021

EU의 GDPR에 따르면 개인정보를 수집할 때 정보 주체(사용자)의 동의 혹은 거절하는 권리가 가장 우선시 되고 있다. 그러므로 정보 주체는 언제라도 동의 철회 및 잊힐 권리를 주장할 수 있어야 한다. 특히, 제한적인 IoT 장치(Constrained Node)에서는 프라이버시에 민감한 데이터의 수집, 처리 등에 대해 정보 주체의 동의 기능 구현 및 수집 정보의 활용 내용을 게시하기 매우 어렵다. 본 논문에서는 정보 주체가 IoT 장치에서 수집, 처리되는 데이터를 모니터링하여, 정보 유출의 문제를 인지하고, 연결 및 장치 제어가 가능한 관리 시스템을 설계하고 구현하였다. IoT 장치의 표준 OCF(Open Connectivity Foundation)와 장치 연결 프레임워크인 AllJoyn의 공통 정보를 고려하고, 정보 보호를 위한 메타 데이터 10개를 정의하였다. 이를 DPD(Data Protection Descriptor)라고 명명하였으며, DPD를 기반으로 정보 주체가 정보를 관리할 수 있는 SW인 DPM(Data Protection Manager)를 개발하였다.

• 방송공학회논문지
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• 제27권5호
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• pp.738-750
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• 2022

본 논문은 XR 콘텐츠나 인터페이스 환경에서 활용할 수 있는 음향 자극의 종류를 고찰하고, 청각 자극 기반의 감성 유발이 뇌과학적으로 실효성을 가지는지에 대해 논의하였다. 외부 청각자극, 감성변화 및 뇌연결성의 상관관계 규명에 초점을 맞추어, XR 환경에서 사용자 경험을 제고하기 위한 기계학습 기반 개인 맞춤형 사운드 트랙 제공 서비스 개발이 필요하다는 시사점을 도출하였다. 또한, 짧은 음향자극으로 감성을 유발할 수 있는지를 테스트하여 청각자극에 의해 유발된 각성상태에서 우측 전두엽이나 전두엽, 두정엽, 후두엽 네트워크에서 뇌의 기능적 연결성이 강화되고 이완시에는 상반된 패턴을 보이는 것을 확인하였다. 본 연구에서 도출된 결과는 보다 입체적인 XR 상호작용 경험을 제시하고 사용자의 XR 인지수용성을 제고하여, 현장에서 실질적으로 적용될 수 있는 초실감 XR 사운드 바이오피드백 시스템 개발에 활용될 수 있을 것이다.

• 한국환경교육학회지:환경교육
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• 제14권2호
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• pp.15-27
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• 2001

The purpose of this study is to understand and compare the characteristics of the content organization system of three Environment textbooks currently used, and to examine its connectivity with the teaching & teaming methods included in the Environment subject part of the 7th Korean National Curriculum. For the analysis three Environment textbooks for middle school and their teacher's guide books by three companies. published(A, B, and C) The result of the taxonomic analysis showed that three Environment books had different steps to get to the lesson class unit in the way that A of six steps, B of five steps and C of seven steps. The amount of main text was different In the domains of'Human and Environment','Environmental Problems and its Counter-plan'and'Environmental Conservation'of three textbooks each. All of three textbooks had the biggest percentage in sub-domains of'Living Environment to Keep'and'Global Environmental Problem'in 'Environmental Problems and its Counter-plan'domain. Considering teaching & loaming methods all of three textbooks contained many activities as 55 in A, 66 in H and 91 in C. Among 9 teaching 8E teaming methods and others listed in the Environment subject part of the 7th Korean National Curriculum, the investigation method is most frequently used in all of three textbooks. The drama, the paly and the case study were used rarely as teaching & teaming methods in activities In the consideration of the content amount regarding academic fields, it was revealed that three textbooks overemphasized the aspect of natural sciences comparing the aspect of human & social sciences aspect as a whole. Generally the appendix section of all three textbooks were well organized to support the teaching and teaming activities in main text.

• Journal of the Korean Data and Information Science Society
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• 제19권2호
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• pp.645-655
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• 2008

As wireless connectivity is integrated into many handheld devices, streaming multimedia content among mobile ad-hoc peers is becoming a popular application. In this paper, we propose a dynamic service replication algorithm for providing guaranteed continuous streaming services to all nodes in mobile ad-hoc networks (MANETs). First, a MANET is comprised of logical grid hierarchy, and a streaming service is replicated to a lower server region of the logical grid hierarchy by considering the link availability between a mobile node and the streaming server within a server region or the popularity of the streaming service. We evaluate analytically the performance of the proposed algorithm, and compared with that of existing Qin's algorithm. Evaluation results show that our algorithm can achieve better streaming performance than Qin's algorithm. Therefore, the proposed algorithm not only improves the sharing availability of replicated streaming services but also controls efficiently the number of streaming service replications.