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  1. Article

    Open Access

    Round-robin test on thermal conductivity measurement of ZnO nanofluids and comparison of experimental results with theoretical bounds

    Ethylene glycol (EG)-based zinc oxide (ZnO) nanofluids containing no surfactant have been manufactured by one-step pulsed wire evaporation (PWE) method. Round-robin tests on thermal conductivity measurements o...

    Wook-Hyun Lee, Chang-Kyu Rhee, Junemo Koo, Jaekeun Lee… in Nanoscale Research Letters (2011)

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  2. No Access

    Article

    Preparation and characterization of surface energy of BPDA-BAPP polyimide

    The surface properties (water sorption and repellency, adhesion) are closely related to the surface tension of polymer solids. The critical surface tension (γ c

    Kyung-Hoe Kim, Yong-Gwon Kim, Younghwan Kwon in Macromolecular Research (2009)

  3. No Access

    Article

    Amphiphilic norbornene-based diblock copolymers containing polyhedral oligomeric silsesquioxane prepared by living ring opening metathesis polymerization

    We report the successful synthesis of poly(NBECOOH-b-NBEPOSS) copolymers, taking advantage of the sequential, living ring opening metathesis polymerization of NBETMS and NBEPOSS using the RuCl2 (=CHPh)(PCy3)2/CH2

    Su-Dong Park, Wentao Xu, Chanhong Chung, Younghwan Kwon in Macromolecular Research (2008)

  4. No Access

    Article

    Synthesis of norbornene block copolymers containing polyhedral oligomeric silsesquioxane by sequential ring-opening metathesis polymerization

    The synthesis of a series of poly(POSS-NBE-b-MTD) copolymers was successfully accomplished, taking advantage of sequential, ring-opening, metathesis block copolymerization using RuCl2(=CHPh)(PCy3)2 catalyst. By u...

    Younghwan Kwon, Kyung-Hoe Kim in Macromolecular Research (2006)

  5. No Access

    Chapter and Conference Paper

    Efficient Wireless Resource Management Scheme Using Differential Received Signal Strength Indicator in Soft Handoff

    This paper proposes an efficient wireless resource management scheme using a Differential Received Signal Strength Indicator (DRSSI) in soft handoff. DRSSI is the differential value of RSSIs, and can be used t...

    YoungHwan Kwon, Seong Gon Choi… in Information Networking. Advances in Data C… (2006)

  6. Chapter and Conference Paper

    Performance of Optical Burst Switching in Time Division Multiplexed Wavelength-Routing Networks

    In this paper, we propose an optical burst switching architecture in time division multiplexed wavelength-routing networks, in which an edge OBS node requests time slots necessary to optical bursts to the time...

    Tai-Won Um, YoungHwan Kwon, Jun Kyun Choi in Computational Science - ICCS 2004 (2004)

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  7. No Access

    Chapter

    Synthesis of Polyisobutylene-Based Block Copolymers with Precisely Controlled Architecture by Living Cationic Polymerization

    During the last two decades we have witnessed the discovery and development of living cationic polymerization. As a result of persistent growth in this field, today living cationic polymerization is an equal c...

    Younghwan Kwon, Rudolf Faust in New Synthetic Methods (2004)