• Electronics and Telecommunications Trends
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• v.32 no.5
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• pp.65-73
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• 2017

A holography technique optically reconstructs a three-dimensional object in space to provide a natural sense of depth and volume to the observer, thereby providing an ultimate 3D image capable of solving the problem of "vergence-accommodation conflict" occurring in a conventional stereoscopic imaging system. In this paper, we present a technical framework for measuring the performance and evaluating the quality of a holographic display, which enables a quantitative measurement of the optical and physical properties that affect the performance and quality of a holographic display. In addition, we provide the trend regarding standardization related to holographic display measurements. Although this trend has barely started, research activities related to holographic display measurements and quality evaluations are expected to grow in the near future.

• Journal of Hydrogen and New Energy
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• v.18 no.2
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• pp.197-206
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• 2007

There are several methods for the hydrogen production such as steam reforming of natural gas, photochemical method, biological method, electrolysis and thermochemical method, etc. Many researches have been widely performed for the hydrogen production method having low production cost and high efficiency. In this paper, the patents concerning the photochemical hydrogen production method were gathered and analyzed. The search range was limited in the open patents of USA(US), European Union(EP), Japan(JP), and Korea(KR) from 1996 to 2005. Patents were gathered by using key-words searching and filtered by filtering criteria. The patent application trend was analyzed by the years, countries, companies, and technologies.

• Journal of Drive and Control
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• v.13 no.4
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• pp.74-81
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• 2016

• Journal of Drive and Control
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• v.17 no.1
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• pp.68-75
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• 2020

• Journal of the Korean Society for Precision Engineering
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• v.18 no.4
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• pp.25-36
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• 2001

• Electrical & Electronic Materials
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• v.8 no.4
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• pp.509-517
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• 1995

• Proceedings of the Optical Society of Korea Conference
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• 2000.02a
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• pp.92-93
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• 2000

WDM전송망은 지금까지 주로 장거리 기간망에 점대점 형태로 적용되어 왔다. 그러나 최근 예측을 훨씬 상회하는 인터넷 수요의 폭발적 증가로 인하여 매트로 네트워크 및 가입자영역에 이르기까지 WDM전송망 구축의 필요성이 대두되고 있다. WDM네트워크 적용영역을 구분하면 아래와 같다. (중략)

• Journal of Power System Engineering
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• v.18 no.5
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• pp.5-10
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• 2014

• Journal of Drive and Control
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• v.9 no.1
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• pp.77-82
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• 2012

• Electrical & Electronic Materials
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• v.10 no.8
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• pp.836-842
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• 1997