• 한국산업융합학회 논문집
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• 제27권4_1호
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• pp.781-795
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• 2024

While an increasing number of people across diverse audience groups are engaging in discussions about the onset of the 4th industrial revolution, it remains challenging to pinpoint the symptoms of this phenomenon. This research, recognizing this difficulty, employed a time-series data-tuned cluster analysis to uncover evidence of industrial and technological convergence among the United States, Japan, and Korea by using time-series industrial R&D data and industrial wage data as indirect measures of industrial competitiveness and technology convergence. The results showed that the recent U.S. case of 2010-2019 data clearly featured the" phenomenon Tesla", which shows the convergence of Aerospace, Transportation equipment, and software. Supporting evidence for that comes from the results from the previous periods in the three countries, which shows a high concentration of cor manufacturing sectors, but no symptoms of convergence.

• 산업공학
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• 제19권4호
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• pp.306-315
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• 2006

In this paper we analyze whether we can use the mobile phone having been highly distributed into young generation as a device for the u-learning in Korean public education. For this purpose we deal with the technical maturity in three axes. Firstly, we examine the authoring nature of mobile internet-based contents such as both text and motion picture for the contents developers in the public education. As a research result the authoring of text has almost no difficulty, but that of the motion picture shows some problems. Secondly, we deal with whether u-learners can easily get and use u-contents on both mobile phone and PC respectively. After analysing this factor, we found that the downloading of motion picture contents into mobile phone is very limited. Therfore we talk about the usability and problem of various PC Sync tools and propose their standardization. Finally, the needs of the introduction of the ubiquitous SCORM which could enable to reuse u-contents among different Korean telco’s mobile phones are discussed. Here we describe some functionality of both ubiquitous SCORM and u-LMS. Our study looks like almost the first work examining the technological maturity for the introduction of u-learning with mobile phone in Korean public education and it could be used as a reference for the study of any other wireless telecommunication-based u-learning other than mobile telecommunication.

• 한국환경교육학회지:환경교육
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• 제19권2호
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• pp.1-11
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• 2006

In Korea nearly all the subjects teach environmental education in the secondary school. In addition we have a separate environmental education subject (environmental subject). This could be a very strong point in the Korean environmental education. The environmental subject and the other subjects, however, overlap in teaching materials and methods in almost all aspects. Because of this, the environmental subject has not done its job effectively, and is sometimes considered as an unnecessary surplus. To effectively play its own role in environmental education, the subject should focus on environmental issues rather than on contamination, which it is focusing on now. The contamination-focused environmental subject simply teaches nearly the same contents that the other subjects teach. In addition, it makes students visit actual sites related to pollution in order to encourage them to be aware of the severity of pollution. However, it has difficulty in teaching how environmental problems occur in a society and how the social decisions are made to resolve the problems. To overcome this difficulty the environmental subject should employ discussion classes more substantially, which let students investigate social aspects as well as scientific aspects of environmental problems and make integrated decisions through interdisciplinary approaches, to make students understand social mechanisms of environmental problems. The subject should focus on teaching what factors influence producers' and consumers' behavior and what factors they should consider when they have to make decisions on environmental issues. It should leave teaching technical knowledge and skill to the other subjects, and train students by the integrated approach which makes them see technology through a sociologist's eye. Although such integrated approach is emphasized in the environmental subject, environmental teachers should be trained to understand technological knowledge and skill in profound depth.

• 대한인간공학회지
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• 제31권4호
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• pp.593-599
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• 2012

Objective: This study aims to implement a non-contact gesture-based interface for presentation purposes and to analyze the effect of the proposed interface as information transfer assisted device. Background: Recently, research on control device using gesture recognition or speech recognition is being conducted with rapid technological growth in UI/UX area and appearance of smart service products which requires a new human-machine interface. However, few quantitative researches on practical effects of the new interface type have been done relatively, while activities on system implementation are very popular. Method: The system presented in this study is implemented with KINECT$^{(R)}$ sensor offered by Microsoft Corporation. To investigate whether the proposed system is effective as a presentation support tool or not, we conduct experiments by giving several lectures to 40 participants in both a traditional lecture room(keyboard-based presentation control) and a non-contact gesture-based lecture room(KINECT-based presentation control), evaluating their interests and immersion based on contents of the lecture and lecturing methods, and analyzing their understanding about contents of the lecture. Result: We check that whether the gesture-based presentation system can play effective role as presentation supporting tools or not depending on the level of difficulty of contents using ANOVA. Conclusion: We check that a non-contact gesture-based interface is a meaningful tool as a sportive device when delivering easy and simple information. However, the effect can vary with the contents and the level of difficulty of information provided. Application: The results presented in this paper might help to design a new human-machine(computer) interface for communication support tools.

• 디지털융복합연구
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• 제18권9호
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• pp.323-329
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• 2020

현재 중소기업의 기술혁신을 촉진하기 위해 일정 비율 이상을 중소기업에 의무적으로 지원하도록 제도화하고 있다. 이에 따라 매년 3조원 이상의 정부 예산이 투입되는 중소기업 R&D 사업의 성공 가능성 여부를 판단하기 위하여 전문가의 기술적인 평가를 통해 해당 기술의 기술적 난이도에 대한 상용화 및 성공 가능성을 면밀히 검토하게 된다. 이를 검토하기 위한 방법으로 AHP(Analytic Hierarchy Process) 기법은 평가 항목에 대한 평가 기준을 객관적으로 판단할 수 없었으며, 해당 평가 기준이 모호성 및 불확실성이 내포되어 있어 중소기업 R&D 사업의 전문성 및 공정성을 확보할 수 없었다. 본 연구에서는 중소기업 R&D 사업의 성공 가능성을 판단할 수 있도록 평가 항목에 대한 가중치를 객관적으로 제시할 수 있는 Fuzzy-AHP 기반 중소기업 R&D 평가 시스템을 제안하였다. 삼각 퍼지 수를 이용하여 해당평가 기준을 구간 값으로 적용하여 객관화하였으며, 중소기업 기술개발 지원사업 관리지침에 따른 가중치를 배정하여 실제 평가에 반영될 수 있도록 이를 적용하였다. 본 연구를 통해 새로운 사업에 대한 전문가를 위촉하였을 때 위의 평가항목의 배점 가중치를 재반영할 수 있으며, 이를 이용하여 중소기업 R&D 사업의 전문성 및 공정성을 확보할 수 있을 것이다.

• 한국HCI학회논문지
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• 제12권4호
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• pp.75-80
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• 2017

최근 인지과학의 활발한 연구와 기술의 발달로 인해 사회과학분야에서 정신생리학적 연구를 통한 뇌의 다양한 측정과 정교한 분석 기법이 개발 되었다. 그러나 뇌파를 이용한 뉴미디어활용에 관한 연구는 장비들을 장착하는 과정에서의 한계점으로 인해 진행되지 못하였다. 이러한 문제를 극복하고자, 가상현실장비를 착용한 상태에서도 전 영역의 뇌파측정이 가능한 캡을 디자인하고 활용방법을 제안한다.

• Clinical and Experimental Pediatrics
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• 제53권6호
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• pp.680-687
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• 2010

Patients with congenital heart diseases (CHD) are confronted with early- and late-onset complications, such as conduction disorders, arrhythmias, myocardial dysfunction, altered coronary flow, and ischemia, throughout their lifetime despite successful hemodynamic and/or anatomical correction. Rhythm disturbance is a well-known and increasingly frequent cause of morbidity and mortality in patients with CHD. Predisposing factors to rhythm disturbances include underlying cardiac defects, hemodynamic changes as part of the natural history, surgical repair and related scarring, and residual hemodynamic abnormalities. Acquired factors such as aging, hypertension, diabetes, obesity, and others may also contribute to arrhythmogenesis in CHD. The first step in evaluating arrhythmias in CHD is to understand the complex anatomy and to find predisposing factors and hemodynamic abnormalities. A practical stepwise approach can lead to diagnosis and prompt appropriate interventions. Electrophysiological assessment and management should be done with integrated care of the underlying heart defects and hemodynamic abnormalities. Catheter ablation and arrhythmia surgery have been increasingly applied, showing increasing success rates with technological advancement despite complicated arrhythmia circuits in complex anatomy and the difficulty of access. Correction of residual hemodynamic abnormalities may be critical in the treatment of arrhythmia in patients with CHD.

• 시스템엔지니어링학술지
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• 제10권2호
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• pp.71-79
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• 2014

To enhance success probability of a system development project, its overall risk level should be minimized through systematically managing schedules, costs, and technical performances. However, Attempts to manage technical performance compared to numerous efforts to control costs and schedules in such projects are deficient. Particularly, a space launch vehicle, a large complex system, development project is much less likely to meet its technical performance objectives due to its technological difficulty, along with schedule delay and cost overrun. The technical performance management (TPM) is a method for tracking and managing technical progress in order to achieve technical performance targets within schedule and budget. In this paper, we investigate applications of the TPM in several space launch vehicle development projects. Then we propose and validate the TPM process to achieve a successful mission in such projects.

• 컴퓨터교육학회논문지
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• 제7권3호
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• pp.91-99
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• 2004

초등학생들은 통합된 멀티미디어를 제공하는 인터넷 게임에 대단한 관심을 갖고 있으며, 자연스럽게 네트워크 관련 용어(게임서버, 인터넷 서비스, 인터넷 속도 등) 및 인터넷상에서 일어나는 기술 현상에 대해서도 익숙해져 있다. 그러나 초등 컴퓨터 교과 내용은 ICT 소양교육과 활용교육, 즉 도구 사용 기술로만 되어 있어 이러한 현상들에 대한 개념과 원리를 이해하기는 어렵다. 따라서, 본 논문에서는 도구 학습이 아닌 인터넷의 기반인 네트워크 개념에 대한 교수학습을 문제중심 모형을 이용하여 설계하고 수업현장에 적용한다. 그 결과로 보다 더 원리와 개념 이해영역으로 초등 컴퓨터 교과 내용의 변화가 필요함을 보이고자 한다.

• Clinical and Experimental Pediatrics
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• 제60권8호
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• pp.237-244
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• 2017

During the last 10 years, there have been major technological achievements in pediatric interventional cardiology. In addition, there have been several advances in cardiac imaging, especially in 3-dimensional imaging of echocardiography, computed tomography, magnetic resonance imaging, and cineangiography. Therefore, more types of congenital heart diseases can be treated in the cardiac catheter laboratory today than ever before. Furthermore, lesions previously considered resistant to interventional therapies can now be managed with high success rates. The hybrid approach has enabled the overcoming of limitations inherent to percutaneous access, expanding the application of endovascular therapies as adjunct to surgical interventions to improve patient outcomes and minimize invasiveness. Percutaneous pulmonary valve implantation has become a successful alternative therapy. However, most of the current recommendations about pediatric cardiac interventions (including class I recommendations) refer to off-label use of devices, because it is difficult to study the safety and efficacy of catheterization and transcatheter therapy in pediatric cardiac patients. This difficulty arises from the challenge of identifying a control population and the relatively small number of pediatric patients with congenital heart disease. Nevertheless, the pediatric interventional cardiology community has continued to develop less invasive solutions for congenital heart defects to minimize the need for open heart surgery and optimize overall outcomes. In this review, various interventional procedures in patients with congenital heart disease are explored.