• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2008년도 추계종합학술대회 B
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• pp.555-558
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• 2008

For trying to frontal attack of new solution by fusion of technical tasks and conditions with it's solving methods of the essential tasks of marine resource development and environmental conservation in addition with elements of electronic high-technologies, the skimmer robot was proposed by using of oil spill disaster prevention and its disposal system with sequentially circular collection type of magnetic oil spill adsorbent powder and fabrics on the electronic barge robot for the scheme of sustainable development of environment-friendly technology. It was verified from the experiment of electronic barge robot demonstrator that the skimmer system of magnetic oil spill adsorbent powder and fabrics was very effective and useful technique to collect oil spill samples. At this point, the barge-based electronic remote control was very useful system operating easily on the marine fields to skim oil spill with dangerous toxic substances of crude oil and very harmful to human. Therefore, fusion technology proposed in this study combined with electronic and marine technology is the novel contributable technology for developing marine environmental conservation and environment-friendly disaster prevention, and also its management techniques.

• 센서학회지
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• 제30권2호
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• pp.119-124
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• 2021

Isolation and separation of biological nanoparticles, such as cells and extracellular vesicles, are important techniques for their characterization. Dielectrophoresis (DEP) based on microfluidic chips is an effective method to isolate and separate the nanoparticles. However, the electrodes of the DEP chips are electrolyzed by the electrical signals applied to the nanoparticles. Thus, the isolation/separation efficiency of the nanoparticles is reduced considerably. Through this study, we developed a microfluidic DEP chip for reliable isolation/ separation of nanoparticles and developed a passivation technique for the protection of the DEP chip electrodes. The electrode passivation process was designed using a hydrogel and the stability of the hydrogel passivation layer was verified. The fabricated DEP chip and the proposed passivation technique were used for the collection and dispersion of the fluorescent polystyrene nanoparticles. The proposed chip and the technique for isolation and separation of nanoparticles can be leveraged in various bioelectronic applications.

• 한국문헌정보학회지
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• 제42권4호
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• pp.201-221
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• 2008

이 연구에서는 대학도서관의 전자정보원 통합관리와 서비스를 위한 도구들의 개발 동향과 현재 사용되고 있는 전자자원 통합관리 시스템 사례를 통해, 대학도서관에서 제공되는 전자자원 서비스의 유형과 전자자원 관리의 요건들을 조사하였다. 우선 전자자원의 관리적 측면을 살펴보기 위하여 전자자원의 라이프사이클을 이해하고, 이를 관리하기 위한 전자자원관리시스템(ERMS)의 기능적 요소들을 살펴보았다. 이를 위해서 전자자원관리시스템의 표준을 제시하고 있는 DLF의 ERMI의 기능적 특징들을 일별하고, 전자자원의 라이프사이클 단계에 맞추어 그 기능들을 정리하였다. 다음으로 대학도서관에서 제공되는 전자자원서비스 유형을 파악하기 위하여 현재 가장 광범하게 적용되고 있는 전자자원관리시스템 2종을 사례로 선정하고 이를 사용하고 있는 대학도서관 포털의 전자자원서비스 영역을 조사하여, 제공되는 서비스유형들을 파악하였다.

• International Journal of Knowledge Content Development & Technology
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• 제14권2호
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• pp.81-97
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• 2024

The study investigated computer literacy skills as a determinant of electronic reference sources utilization among selected secondary school students in Ado-Odo Ota Local Government, Ogun State, Nigeria. Four specific objectives with conforming research questions guided the study. Descriptive survey research design was adopted for the study. The population of the study comprises of SSS3 students of the three selected Community Secondary Schools in Ado Odo Ota. A sample size of 150 was used for the study. The instrument for data collection was a self-developed structured questionnaire. Data collected was analyzed using frequency and percentages. Findings of the study revealed that majority of secondary school students were not aware of the availability of electronic reference sources. It also revealed that the level of their computer literacy skills was below average. Majority of them have never used computer before and the few of them that have used computer before used it in their homes, their friend's homes or in the cyber café. It was found that lack of formal training on the use of electronic reference sources, lack of access to computer, lack of awareness of availability of electronic reference sources, lack of funds for internet subscriptions, over dependency on printed reference sources and lack of motivation to use electronic reference sources were the major hindrances to the use of electronic reference sources among secondary school students. It was recommended that the school librarians and teachers should play a role in creating awareness among secondary school students about the availability of online/ electronic reference sources among others.

• 한국ITS학회 논문지
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• 제13권1호
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• pp.86-98
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• 2014

현재 DSRC(Dedicated Short Range Communication)를 이용한 자동요금징수시스템(이하 ETCS, Electronic Toll Collection System)이 전국 영업소에 구축 되면서 많은 하이패스 단말기(이하 OBU, On-Board Unit)가 보급되었다. 이러한 ETCS 인프라와 전국호환카드를 활용한 ITS 서비스 분야가 연구개발 및 사업화 추진 중에 있다. ETCS에 전국호환카드 적용방안 연구가 많이 이루어지고 있지만 전국호환카드 적용방안 및 교통편의시설 결제에 대한 표준이 명확하게 이루어지지 않고 있다. 이에 국토교통부에서 고시한 "전국호환카드" 를 기존 DSRC기반 ETCS에 적용방안을 제안하고자 한다. 본 연구에서 제안하는 적용방안을 시범운영 사이트에서 시험차량 3대를 이용해 다양한 주행시험을 통해 시스템의 성능을 확인 하였다. 주행시험 결과 약 99%의 통신 성공률을 보였고 이를 통해 본 논문에서 제안한 표준 적용방안의 유효성을 확인하였으며, 약 1%의 실패를 통해 교통편의시설 전자결제 서비스 부분의 적용하여 발생할 수 있는 문제점을 분석하였다.

• 한국인터넷방송통신학회논문지
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• 제16권6호
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• pp.255-264
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• 2016

정보통신기술의 급속한 발전으로 경제활동 분야에서 큰 변화를 가져오고 있으며 혁신적으로 변화하고 있는 것은 전자상거래라고 할 수 있다. 더불어 전자금융사기의 방법도 나날이 진화하면서 피해사례도 함께 늘어나고 있다. 이에 따라 전자금융 이상거래에 대한 분석 및 탐지가 되고 있으나 여전히 피해가 발생되고 있는 상황이다. 본 연구에서는 금융환경, 금융 IT 환경, 금융 IT보안 환경과 법제도적인 변화의 특성을 분석하고 현재 금융기관에서 운영되는 이상금융거래 탐지시스템의 한계점을 보완하기 위하여 효과적인 전자금융 이상거래 분석 및 탐지 관리 체계와 외부기관과의 정보공유 및 개인정보 수집 및 활용에 대한 고려사항을 제안하고자 한다.

• 동굴
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• 제85호
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• pp.28-34
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• 2008

For trying to frontal attack of new solution by fusion of technical tasks and conditions with it's solving methods of the essential tasks of marine resource development and environmental conservation in addition with elements of electronic high-technologies, the magnetic oil spill adsorbent of Mag-Sorbent* has been prepared and proposed to dispose oil spill from the marine disaster for preventing oil pollution by using them and their system with sequentially circular collection of oil spill mag-sorbent powder and fabrics on the electronic equipment like as barge robot for the scheme of sustainable development of environment-friendly technology. Because of recent marine accident occurred at Tae-An cost and earthquake in Sichuan province were very large scale accident of disaster to prevent and manage of them. So, it was verified from the experiment of electronic demonstrator that the skimmer system of oil spill mag-sorbent powder and fabrics prepared was very effective and useful technique to collect oil spill samples on the water surface specially at the closed space of underground cave. At this point, the barge-based electronic remote control was very useful system operating easily on the marine fields but also water level at the small pool to skim it with the environment-friendly system of the disposing marine disaster and preventing oil pollution using magnetic adsorbents of Mag-Sorbent*.

• Journal of Information Science Theory and Practice
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• 제1권2호
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• pp.69-83
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• 2013

This paper aims to determine the preference and use of electronic information and resources by blind/visually impaired users in the leading National Capital Region (NCR) libraries of India. Survey methodology has been used as the basic research tool for data collection with the help of questionnaires. The 125 in total users surveyed in all the five libraries were selected randomly on the basis of willingness of the users with experience of working in digital environments to participate in the survey. The survey results were tabulated and analyzed with descriptive statistics methods using Excel software and 'Stata version 11'. The findings reveal that ICT have a positive impact in the lives of people with disabilities as it helps them to work independently and increases the level of confidence among them. The Internet is the most preferred medium of access to information among the majority of blind/visually impaired users. The 'Complexity of content available on the net' is found as the major challenge faced during Internet use by blind users of NCR libraries. 'Audio books on CDs/DVDs and DAISY books' are the most preferred electronic resources among the majority of blind/visually impaired users. This study will help the library professionals and organizations/institutions serving people with disabilities to develop effective library services for blind/visually impaired users in the digital environment on the basis of findings on information usage behavior in the study.

• International Journal of Computer Science & Network Security
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• 제22권1호
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• pp.21-26
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• 2022

This study touched on the effect of the different electronic course designs on the programming skills of university students. The researcher used the experimental research design of a quasi-experimental of two experimental groups to achieve the objectives of the study. The first group underwent an electronic course designed in the holistic pattern, and the second group was taught a course in a sequential pattern. This experimental design was intended to measure the impact of these two learning modes on the learners' cognitive and performance achievement of programming skills. An achievement test and observational form were the data collection tools. Data were analyzed statistically using Pearson correlation, Mann Whitney Test, and Alpha Cronbach. The findings revealed statistically- significant differences between the mean scores of the students of the first and second experimental groups in favor of the former concerning the observational form and the latter in the cognitive test. Based on the findings, some recommendations are suggested. Due to their effectiveness in the educational process, expanding using the e-courses at universities is vital. The university teachers are highly recommended to design e-courses and provide technical and material support to the e-courses user to fulfill their design purpose.

• ETRI Journal
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• 제44권1호
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• pp.10-23
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• 2022

Despite the significant progress in camera pose estimation and structure-from-motion reconstruction from unstructured images, methods that exploit a priori information on camera arrangements have been overlooked. Conventional state-of-the-art methods do not exploit the geometric structure to recover accurate camera poses from a set of patch images in an array for mosaic-based imaging that creates a wide field-of-view image by sewing together a collection of regular images. We propose a camera pose estimation framework that exploits the array-structured image settings in each incremental reconstruction step. It consists of the two-way registration, the 3D point outlier elimination and the bundle adjustment with a constraint term for consistent rotation vectors to reduce reprojection errors during optimization. We demonstrate that by using individual images' connected structures at different camera pose estimation steps, we can estimate camera poses more accurately from all structured mosaic-based image sets, including omnidirectional scenes.