• 디지털콘텐츠학회 논문지
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• 제12권1호
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• pp.123-131
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• 2011

본 연구의 목적은 어휘 학습의 측면에서 컴퓨터 보조 학습을 통한 컴퓨터 기술의 효과와 유용성을 알아보고자 하는데 있다. 컴퓨터 기술을 통한 멀티미디어 수업은 네 가지 (듣기, 말하기, 일기, 쓰기의) 언어기술과 관련하여 다양한 언어학습방법을 제공한다. 한국인 영어 언어 학습자는 주입식 교육에 익숙해져 왔으며, 단어를 습득하는데 있어 반복적인 어휘 암기방법을 활용한다. 이를 위해 본 연구에서는 세 가지 연령 그룹을 대상으로 설문 조사와 교육용 멀티미디어 학습실험이 이루어져있다. 본 연구는 오프라인에서의 어휘학습과 다르게 교사는 컴퓨터 멀티미디어프로그램을 응용하여 교실 수준에 적합한 어휘 학습 응용 프로그램을 어떻게 효과적으로 개선 할 수 있는지 밝히고자 한다.

• 산업공학
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• 제15권3호
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• pp.230-240
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• 2002

Information technologies centered on the internet in the area of shipbuilding and marine engineering further incur the needs to increase the flexibility of the organization, the dispersion of work process, and the use of out sourcing, as well as the globalization of related market. In near future, electronic commerce and concurrent engineering based on CALS/EC and the Internet will be an integral part of the environment and upon these changes, ship design and construction will become a computer supported cooperative work of many dispersed and specialized groups. As the means of active response to these environmental changes, many new concepts such as digital shipbuilding, virtual shipyard, and simulation based design are appearing. In this paper, the concept and current status of digital manufacturing in general manufacturing industry will be reviewed. Then, related technologies, area of application and methods of digital manufacturing in shipbuilding and marine industries are presented. In addition, virtual assembly simulation system for shipbuilding(VASSS), a tool for crane operability and block erection simulation in virtual dock based on 3D product model, will be introduced.

• 한국콘텐츠학회논문지
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• 제5권1호
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• pp.1-8
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• 2005

e-러닝은 교육과 학습을 위하여 e-비즈니스 기술 및 서비스를 사용하는 응용프로그램이다. 이는 원격지자원과 서비스에 접근을 수월하게 함으로서 교육의 질을 높이기 위한 새로운 멀티미디어 및 인터넷 기술을 사용한다. 본 논문은 신중하게 설계되고 구현된 인터넷기반의 컴퓨터기반 시험 시스템에 대하여 기술한다. 본 시스템은 콘텐츠 전달 기술, 컴퓨터 적응형 시험 알고리즘, 리뷰엔진으로 구성되어 있다. 본 논문에서는 컴퓨터기반 시험 시스템을 설계하고 구현할 때에 고려되어야 할 요소들에 대하여 서술한다. 또한, 실제 데이터를 이용하여 컴퓨터 적응형 알고리즘을 위한 편향 값을 어떻게 조절하는지를 보인다.

• International Journal of Computer Science & Network Security
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• 제24권3호
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• pp.135-141
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• 2024

The article examines the key constants of reengineering the modern educational cluster, associated with the processes of digital transformation of all spheres of modern socio-cultural space. The first constant is the strategic rethinking of the educational process organization and awareness of the new roles of all participants (tutors, applicants, controlling elements, etc.). The other constant involves practical re-design of the system of educational services, which consists in the reorientation from the traditional model of education functioning for society to the implementation of the educational format in the form of new projects (structural, target, business). Consequently, the purpose of the study is to highlight the attitudes relevant to the modern realities of information and technological support of education in the context of socio-economic interactions of society. The criteria for the reengineering of educational concepts and the structural organization of the educational sphere are defined. The modern world is going through a period of complete digital transformation of all spheres of public activity. The scientific intelligence notes that education is no exception in these processes, as the dependence of educational realities on information and computer technologies is now noted. The COVID-19 pandemic, for all its tragedy, was also a kind of trigger, clearly marking the new components that have become defined in the organization of the educational process. The conclusion is made that the use of digital technologies in the organization of the educational institution or in the organization of the educational process has become not an auxiliary element, but a dominant factor. Mobility, dynamism, interdisciplinarity, synergy - all these aspects are relevant for socio-economic interactions of society and should be provided by educational programs. The results of the study can be used in the reorganization processes of educational institutions and institutions. Further research requires aspects of the analysis of the foreign experience of reengineering in education, carried out taking into account digital transformations of modern sociocultural space.

• International Journal of Computer Science & Network Security
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• 제22권6호
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• pp.212-222
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• 2022

There has been a rapid increase in the use of cloud email services. As a result, email encryption has become more commonplace as concerns about cloud privacy and security grow. Nevertheless, this increase in usage is creating the challenge of how to effectively be searching and filtering the encrypted emails. They are popular technologies of solving the issue of the encrypted emails searching through searchable public key encryption. However, the problem of encrypted email filtering remains to be solved. As a new approach to finding and filtering encrypted emails in the cloud, we propose a ciphertext-based encrypted policy attribute-based encryption scheme and keyword search procedure based on hidden policy ciphertext. This feature allows the user of searching using some encrypted emails keywords in the cloud as well as allowing the emails filter-based server toward filter the content of the encrypted emails, similar to the traditional email keyword filtering service. By utilizing composite order bilinear groups, a hidden policy system has been successfully demonstrated to be secure by our dual system encryption process. Proposed system can be used with other scenarios such as searching and filtering files as an applicable method.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2009년도 춘계 종합학술대회 논문집
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• pp.191-196
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• 2009

컴퓨터와 더불어 멀티미디어의 발전은 가상현실이라는 신기술을 만들어 내게 하였고 가상현실 분야중 컴퓨터 시뮬레이션 기술은 항공, 자동차, 의학, 소포츠, 교육, 패션 분야에 이르기 까지 그 적용이 확대되고 있다. 본 연구는 헤어스타일링 분야에서 컴퓨터 시뮬레이션 적용을 연구하고자 한다. 기존의 2차원 헤어시뮬레이션의 개발 및 상용 현황과, 연구 단계에 있는 3차원 헤어스타일 시뮬레이션의 개발 현황을 살펴본다. 아울러 2차원 헤어시뮬레이션의 사용자를 대상으로 그 유용성에 대하여 실증조사 하였다. 조사 대상자들의 64.6%가 헤어시뮬레이션에 대하여 만족한다고 응답하였고, 50.6%가 다른 사람들에게 추천할 의사가 있다고 하였다. 또한 63.3%가 구전의사가 있다고 조사되었다.

• 한국컴퓨터정보학회논문지
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• 제13권7호
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• pp.221-229
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• 2008

컴퓨터와 더불어 멀티미디어의 발전은 가상현실이라는 신기술을 만들어 내게 하였고 가상현실 분야 중 컴퓨터 시뮬레이션 기술은 항공, 자동차, 의학, 스포츠, 교육, 패션 분야에 이르기까지 그 적용이 확대되고 있다 본 연구는 헤어스타일링 분야에서 기존의 2차원 헤어시뮬레이션의 개발 및 상용 현황과, 연구 단계에 있는 3차원 헤어스타일 시뮬레이션의 개발 현황을 살펴본다. 아울러 현재 개발된 3차원 헤어스타일 시뮬레이션이 상용화하기 위해서는 3D 시스템 부스의 조정, 저가 저화질의 카메라 개선 등의 문제점이 있음을 제시하였다. 이를 개선하기 위해서 object photography 방식에서 panoramic photography 방식의 전환, 중 고가의 고화질 카메라로의 대체들을 제안한다.

• 한국컴퓨터정보학회논문지
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• 제28권1호
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• pp.79-86
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• 2023

건설은 인간에게 생활의 편안함을 제공하는 가장 오래된 분야 중 하나이다. 그러나, 현재 IT 분야뿐만 아니라 다른 분야의 지속적인 발전에도 불구하고 여전히 낮은 자동화로 인한 생산성 저하가 심각한 수준이다. 특히 건설 분야에서 4차 산업혁명 기술의 활용은 이제 막 시작한 단계이다. 블록체인은 4차 산업혁명 기술 중 하나로서, 여러 장소, 국가 또는 조직과 같은 다양한 지리적 위치에 분산된 데이터를 복제, 공유 및 동기화하는 데 사용되는 일종의 분산 데이터베이스이다. 본 논문에서는 블록체인을 소개하고 이를 활용한 건설 분야의 사례를 일곱 가지 주제별로 문헌 분석한다. 분석 결과, 건설 분야에서 블록체인 기술의 이해도를 높이고 향후 다양한 서비스 개발에 유용성을 제공할 것으로 기대된다.

• International Journal of Computer Science & Network Security
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• 제22권7호
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• pp.206-212
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• 2022

Strengthening global geopolitical instability in the world leads to an aggravation of international conflicts; it destabilizes the domestic political situation in countries, violates the rights and freedoms of man and citizen, and also activates economic crime. The full-scale invasion of the Russian Federation on the territory of Ukraine and the deployment of military operations in a large territory of a sovereign country have created a number of destabilizing factors in the development of digital technologies and negatively affect the state and trends of digital marketing, which allows establishing interaction with a wide audience and facilitating the search for new customers in various places. The purpose of the research lies in substantiating the theoretical and applied principles for studying the features of digital marketing in the conditions of wartime posture in Ukraine. In the course of the research, general and special methods of economic analysis have been used and applied, namely: analysis and synthesis; analogies and comparisons; generalization and systematization; graphic and tabular methods. Regarding the results of the research of digital marketing in the conditions of wartime posture in Ukraine, it has been established that the intensification of the development of digital marketing is caused by the crisis phenomena of social-economic, social-political and military nature, as well as exacerbated by the challenges of the COVID-19 pandemic. It has been proven that highly developed countries use innovative digital technologies more effectively in the field of marketing, which indicates the importance of the Multidimensional Index of Digitization (the USA - MID: 0,92-0,92; the UK - MID: 0,80-0,97; Japan - MID: 0,80-0,88; Canada - MID: 0,78-0,81; Germany - MID: 0,78-0,88; France - MID: 0,72-0,76), however, the developing countries record much lower values (Ukraine - MID: 0,22-0,48). Accordingly, the level of cybersecurity in highly developed countries is also significantly higher than in transitive countries, in particular, in the United States (GCI: 0,919-0,999); Great Britain (GCI: 0,783-0,995); Canada (GCI: 0,818-0,978) and in Ukraine (GCI: 0,501-0,661).

• Structural Monitoring and Maintenance
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• 제2권1호
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• pp.19-34
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• 2015

One of the main causes of a limited use of nondestructive evaluation (NDE) technologies in bridge deck assessment is the speed of data collection and analysis. The paper describes development and implementation of the RABIT (Robotics Assisted Bridge Inspection Tool) for data collection using multiple NDE technologies. The system is designed to characterize three most common deterioration types in concrete bridge decks: rebar corrosion, delamination, and concrete degradation. It implements four NDE technologies: electrical resistivity (ER), impact echo (IE), ground-penetrating radar (GPR), and ultrasonic surface waves (USW) method. The technologies are used in a complementary way to enhance the interpretation. In addition, the system utilizes advanced vision to complement traditional visual inspection. Finally, the RABIT collects data at a significantly higher speed than it is done using traditional NDE equipment. The robotic system is complemented by an advanced data interpretation. The associated platform for the enhanced interpretation of condition assessment in concrete bridge decks utilizes data integration, fusion, and deterioration and defect visualization. This paper concentrates on the validation and field implementation of two NDE technologies. The first one is IE used in the delamination detection and characterization, while the second one is the USW method used in the assessment of concrete quality. The validation of performance of the two methods was conducted on a 9 m long and 3.6 m wide fabricated bridge structure with numerous artificial defects embedded in the deck.