• Journal of the Korea Society of Computer and Information
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• v.25 no.12
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• pp.261-270
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• 2020

In this study, we identify promising technologies for Piggyback transportation system by analyzing the relevant patent information. In order for this, we first develop the patent database by extracting relevant technology keywords from the pioneering research papers for the Piggyback flactcar system. We then employed textmining to identify the frequently referred words from the patent database, and using these words, we applied the LDA (Latent Dirichlet Allocation) algorithm in order to identify "topics" that are corresponding to "key" technologies for the Piggyback system. Finally, we employ the ARIMA model to forecast the trends of these "key" technologies for technology forecasting, and identify the promising technologies for the Piggyback system. with keyword search method the patent analysis. The results show that data-driven integrated management system, operation planning system and special cargo (especially fluid and gas) handling/storage technologies are identified to be the "key" promising technolgies for the future of the Piggyback system, and data reception/analysis techniques must be developed in order to improve the system performance. The proposed procedure and analysis method provides useful insights to develop the R&D strategy and the technology roadmap for the Piggyback system.

• Knowledge Management Research
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• v.24 no.1
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• pp.127-145
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• 2023

This paper analyzed a patent trend for technological domain of hydrogen fuel cell, can improve future energy and pollution problems. Patent analysis is used in establishing a technological roadmap which it can discover the current technology capability and future technological development direction. However, the previous patent analysis is qualitative analysis and simple statistical analysis. The reason why it incorrectly analysis patent does not reflect the current technology environment. The current technology environment is development through recombination of technologies. In addition to, the speed of technological development is rapidly growing. So, qualitative analysis does not satisfy the analysis requirements of the times. This paper utilized KP(Knowledge Persistence)-based main path analysis and text mining methods to reflect the current technological environment. As a result, we found core patents, main technology development, and promising technologies for technological domain of the hydrogen fuel cell.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.7 no.10
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• pp.865-878
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• 2017

To realize the healthy life of human, mental, physical, and environmental factors must be managed continuously and stably. In order to manage human health, the 21st century healthcare field is essential ongoing interactions and convergence with ICT technologies. Such demands have created a convergence of technologies (fusion technology) in combination with the heterogeneous technologies. And, with the convergence of medical technology and ICT technologies, the development of personalized therapy environments is created. Advances in ICT-converged healthcare services are progressing due to the development of diverse wearable devices. Such ICT fusion system is exponentially increasing the complexity of the ICT convergence healthcare system and is resulting in various technical, institutional, environmental, and cultural issues. This study explores the status of developments in ICT healthcare technologies from the past to date, identifies major technology and policy issues to address these challenges. Finally it will recommend healthcare policies and a future road-map.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.455-462
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• 2013

As the protection of personal information has been appeared as a main issue in educational institutions, the Ministry of Education, Science and Technology (currently the Ministry of Education) opened InfoSec Training Center to train personnels of educational institutions in 2012. To achieve the purpose of the establishment of the centers, each center needs to identify training target, make training roadmap and design specialized training curriculum. The paper aims to develop criteria to evaluate training and operating levels of InfoSec Training Centers using AHP.

• Journal of Information Technology Services
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• v.11 no.3
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• pp.177-190
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• 2012

The purpose of this research is to find a better win-win growth strategy of Large and mid-sized IT service enterprises. Efficient win-win growth for large and mid-sized enterprises is essential for acquiring a solid global competitiveness in IT service industry. However, previous studies lack generalized and detailed findings, and therefore past strategies were based on fragmented analysis. To develop an efficient win-win growth for Large and mid-sized enterprises, global benchmarking and an in-depth analysis on deep-rooted problems in IT service industry has been conducted. Past and present policies on IT service industry have been reviewed based on desirable co-growth structure. Based on research, current policies are unable to support co-growth, and collaborative efforts between Large and mid-sized enterprises as well as square deals are necessary for win-win growth. A new policy paradigm has been derived and a roadmap for efficient co-growth strategy has been suggested. The results of this research can be used for building a better IT service industry polices. In future studies, a longitudinal analysis on the proposed co-growth strategy can be conducted.

• Asian Journal of Atmospheric Environment
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• v.8 no.1
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• pp.59-68
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• 2014

The Fukushima nuclear accident in 2011 had an extensive impact on the national electricity plans. This paper outlines alternative electricity scenarios that meet the goals of nuclear phase-out and greenhouse gas (GHG) emission reduction. This paper also analyzes the results of each scenario in respect to the electricity mix, GHG emissions, costs and employment effects. The Long-range Energy Alternatives Planning system (LEAP) model was used to simulate the annual electricity demand and supply system from 2011 to 2030. The reference year was 2009. Scenarios are reference (where existing plans are continued), A1, A2, B1, B2, and C2 (where the levels of demand management and nuclear phase-out are different). The share of renewable energy in the electricity mix in 2030 for each scenario will be increased from about 1% in 2009 to 8% in the reference scenario and from 11% to 31% in five alternative scenarios. Total cumulative cost increases up to 14% more than the reference scenario by replacing nuclear power plants with renewable energy in alternative scenarios could be affordable. Deploying enough renewable energy to meet such targets requires a roadmap for electricity price realization, expansion of research, development and deployment for renewable energy technologies, establishment of an organization dedicated to renewable energy, and ambitious targets for renewable energy.

• Journal of the Microelectronics and Packaging Society
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• v.19 no.4
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• pp.71-78
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• 2012

This paper describes trends in conventional scaling compared with advanced technologies such as 3D integration (3DI) and bumpless through-silicon via (TSV) processes, as well as the characteristics of CMOS (Complementary Metal Oxide Semiconductor) Logic device after thinning the wafers to less than $10{\mu}m$. Each module process including thinning, stacking, and TSV, is optimized for 3D Wafer-on-Wafer (WOW) application. Optimization results are discussed with valuable data in detail. Since vertical wiring of bumpless TSV can be connected directly to the upper and lower substrates by self-alignment, bumps are not necessary when TSV interconnects are used.

• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.105-111
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• 2007

본 연구는 신제품 개발 과정에서 이루어지는 개념 설계(conceptual design) 단계에서의 효과적인 평가 방법론 제안을 목적으로 한다. 특히, 현재 사용자가 경험하지 못한 미래형 제품설계를 위한 개념 설계 내용이, 사용자의 잠재적 요구사항을 반영하고 사용자가 수행해야 하는 과업을 효과적으로 지원할 수 있는 지의 여부를 평가하고자 한다. 본 연구에서 제안하는 디자인 컨셉 평가 프레임웍은 3단계로 구성되어 있다. Phase 1에서는 제품의 미래 사용환경을 예측한 시나리오를 작성하여 사용 사례를 도출하고 사용 사례에 대한 과업 분석을 수행, 사용자의 수행 과업을 파악한다. Phase 2에서는 이러한 사용자의 수행 과업을 지원하기 위해 필요한 기능적 요구사항을 구현할 수 있는 기술을 체계적으로 파악하여, 기술 지도(Technology Roadmap)로서 전개한다. 이를 통해 디자인 컨셉을 구현하기 위해 현재 활용 가능한 기술 대안을 파악한다. Phase 3에서는 기술 지도를 통해 파악한 현재의 요소 기술 및 미래의 기술 대안과 사용자 요구사항간의 연관관계를 분석, 제품 개념 설계에 반영되어야 할 설계 요구사항을 도출하여 평가항목을 구성한다. 본 연구의 디자인 컨셉 평가 방법은 CSCW(Computer Supported Cooperative Work)기반 시스템의 실감 사용자 인터페이스(tangible user interface) 개발 사례를 통해 검증하였다.

• 한국정보디스플레이학회:학술대회논문집
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• 2006.08a
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• pp.524-524
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• 2006

For decades, the pursuit of volume commercialization of low-power reflective displays with a paper-like look has been an unfulfilled dream. While steady technical progress was made throughout the late 1990s, there were still no volume products incorporating electronic paper displays (EPD) on the market. Now, microencapsulated electrophoretic display technology, also called electronic ink, has moved into volume production with a frontplane laminate (FPL) display component called E Ink Imaging Film™. This film is coated roll to roll on a flexible plastic substrate and integrated into a display module. Today, all-plastic segmented displays are being shipped as well as displays with electronic ink FPL being driven by glass TFT backplanes. A roadmap to active matrix flexible electrophoretic displays is being enabled by rapid technical progress on flexible TFT backplanes by a variety companies. Each of the approaches to these backplanes and flexible active matrix displays has different advantages for the various market segments being pursued including large format flexible displays for e-news and other reader applications, rollable displays for compact readers, and high resolution small format displays up to 400 ppi that can have fully integrated drive electronics to reduce size and drive down costs. Backplane approaches include Si on plastic, organic transistors on plastic, and Si transistors on flexible stainless steel substrate. Progress is also being made on next generation inks, including more reflective inks with higher contrast ratios. A full color 6 inch, 170 pixel per inch (PPI) active matrix display using a newer generation ink has been developed and this will be described and demonstrated. Large format segmented flexible displays will also be described.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.46 no.12
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• pp.10-17
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• 2009

Nano-Electro-Mechanical MOSFET (NEMFET) using Double-Gate MOSFET (DGMOS) structure can efficiently control the short channel effect. Espatially, subthreshold current of depletion-mode Double-Gate NEMFET (Dep-DGNEMFET) decreases in the off-state due to the thin equivalent-oxide thickness. Analytical $t_gap$ vs. $V_g$ equation for Dep-DGNEMFET is derived and characteristics for different device structures are analyzed. Dep-DGNEMFET structure is optimized to satisfy ITRS criteria.