• Title/Summary/Keyword: Electronic devices

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A Study on Strategy Plan for Ubiquitous Urban Transit Total Information System (U-도시철도통합정보시스템 개발 방향 연구)

  • Chung, Jong-Duk;Pyun, Jang-Sik;An, Tae-Ki
    • Proceedings of the KSR Conference
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    • 2008.06a
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    • pp.1543-1548
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    • 2008
  • Ubiquitous technology is the trend towards increasingly ubiquitous, connected computing devices in the environment, a trend being brought about by a convergence of advanced electronic - and particularly, wireless - technologies and the internet. Ubiquitous technology is pervasive in nature and unobtrusively embedded in the environment, completely connected, intuitive, effortlessly portable, and constantly available. The object of this paper is to describe the strategy plan for Ubiquitous-Urban Transit Total Information System.

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은 나노와이어 투명전극

  • Kim, Sang-Ho
    • Proceedings of the Materials Research Society of Korea Conference
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    • 2012.05a
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    • pp.63.2-63.2
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    • 2012
  • One-dimensional nanowires (NW)/nanorods are under intense investigation in materials science due to their potential applications in many electronic devices. Since the properties required for these applications are greatly influenced by their microscopic structures, it is important to understand the relation between the microstructures with their optical and electric properties. In this study, Ag nanowires were synthesized in various dimensions and coated onto PET films to form transparent electrode. Their optical and electrical properties were studied in terms of their microstructures. Highly transparent (>90%), low haze transparent electrode films were successfully fabricated with surface resistance as low as (~50 ${\Omega}$/>).

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Energy-level alignment and charge injection at electrodeorganic interfaces

  • Helander, M.G.;Wang, Z.B.;Lu, Z.H.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.112-114
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    • 2009
  • Charge injection at electrode-organic interfaces is key to the performance, lifetime and stability of organic electronic devices. The link between fundamental material properties and the energy-level alignment at electrode-organic interfaces will be discussed. In addition the impact of the injection barrier height-a parameterization of the energylevel alignment-on device characteristics will also be discussed.

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Recent Advance of Flexible Organic Memory Device

  • Kim, Jaeyong;Hung, Tran Quang;Kim, Choongik
    • Journal of Semiconductor Engineering
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    • v.1 no.1
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    • pp.38-45
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    • 2020
  • With the recent emergence of foldable electronic devices, interest in flexible organic memory is significantly growing. There are three types of flexible organic memory that have been researched so far: floating-gate (FG) memory, ferroelectric field-effect-transistor (FeFET) memory, and resistive memory. Herein, performance parameters and operation mechanisms of each type of memory device are introduced, along with a brief summarization of recent research progress in flexible organic memory.

Development of Airborne High Density High Voltage Power Supply for Traveling Wave Tubes

  • Park Young-Ju
    • Journal of Power Electronics
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    • v.5 no.4
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    • pp.257-263
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    • 2005
  • This paper describes the development and testing results of a high density High Voltage Power Supply (HVPS) that drives microwave Traveling Wave Tubes (TWTs) of phased array transmitters for airborne EW systems. The HVPS is designed to consist of a number of modules connected in series. Among them, especially, the high-density pulse transformer module including the resonant circuit is newly designed to make the HVPS much more reliable. In addition, this paper describes the development of high voltage solid-state modulation using fast switching devices (FETs) and also represents the test results of a modulator module.

Analyses of Security and Privacy Issues in Ultra-weight RFID Protocol

  • Kim, Jung-Tae
    • Journal of information and communication convergence engineering
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    • v.9 no.4
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    • pp.441-446
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    • 2011
  • Radio frequency identification (RFID) tags are cheap and simple devices that can store unique identification information and perform simple computation to keep better inventory of packages. Security protocol for RFID tags is needed to ensure privacy and authentication between each tag and their reader. In order to accomplish this, in this paper, we analyzed a lightweight privacy and authentication protocol for passive RFID tags.