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  1. No Access

    Article

    Estimation of Power Generation from Thermoelectric Devices: Model Analysis and Performance Measurements

    A realistic model for the electrical output power from a thermoelectric device has been developed. The electrical contact resistivity, the thermal contact conductivity, and the thickness of an insulating layer...

    M. W. Oh, J. H. Ahn, J. K. Lee, B. S. Kim, S. D. Park… in Electronic Materials Letters (2010)

  2. No Access

    Article

    Microstructural effects in modeling the flow behavior of single-crystal superalloys

    The deformation behavior of a [001]-oriented single-crystal superalloy (CMSX-4) having a high volume fraction of regularly arrayed cuboidal γ′ precipitates was simulated using a strain-gradient-dependent plast...

    Y. S. Choi, T. A. Parthasarathy… in Metallurgical and Materials Transactions A (2006)

  3. No Access

    Article

    Effect of Si on the thermo-mechanical deformation and spheroidization of medium carbon steels

    Medium carbon steels (0.45 %C) having various Si content (0.2–1.5%) were thermo-mechanically processed in a controlled hot deformation simulator, a Thermecmaster-Z, and subsequent heat-treatment was performed ...

    Y. S. Choi, I. M. Park, J. H. Kim, K. M. Cho… in Metals and Materials International (2005)

  4. No Access

    Article

    Formation of mesoscale roughening in 6022-T4 Al sheets deformed in plane-strain tension

    Mesoscale surface-roughening evolution in 6022-T4 Al sheets was investigated using plane-strain tension. The formation of grain-scale hills and valleys and their relation to the morphologies and corresponding ...

    Y. S. Choi, H. R. Piehler, A. D. Rollett in Metallurgical and Materials Transactions A (2004)

  5. No Access

    Article

    Electrochemical detection of non-labeling DNA using electronic array

    Our system is the electrochemical approaches include the detection of hybridization from nonlabeling nucleic acids to protein-bound nucleic acids using soluble mediators with K4Fe(CN)6 solutions. In order to gene...

    H. Y. Lee, J. W. Park, Y. S. Choi, T. Kannno, Hiro Tanaka… in MRS Online Proceedings Library (2003)

  6. No Access

    Article

    Electrochemical reliability of plasma-polymerized cyclohexane films deposited on copper in microelectronic devices

    Z.-T. Park, Y.-S. Choi, J.-G. Kim, J.-H. Boo in Journal of Materials Science Letters (2003)

  7. No Access

    Article

    Electrochemical detection of non-labeling DNA using electronic array

    Our system is the electrochemical approaches include the detection of hybridization from nonlabeling nucleic acids to protein-bound nucleic acids using soluble mediators with K4Fe(CN)6 solutions. In order to gene...

    H. Y. Lee, J. W. Park, Y. S. Choi, T. Kannno, Hiro Tanaka… in MRS Online Proceedings Library (2003)

  8. No Access

    Article

    Studies on gelatin-based sponges. Part III: A comparative study of cross-linked gelatin/alginate, gelatin/hyaluronate and chitosan/hyaluronate sponges and their application as a wound dressing in full-thickness skin defect of rat

    Novel cross-linked sponges composed of gelatin/alginate and gelatin/hyaluronate and chitosan/hyaluronate (GH, GA and CH, respectively) were prepared and compared. Six different sponges with or without silver s...

    Y. S. Choi, S. B. Lee, S. R. Hong, Y. M. Lee… in Journal of Materials Science: Materials in… (2001)

  9. No Access

    Article

    Preparation and properties of Ta2O5 film capacitors using TiSi2 bottom electrode

    Thin Ta2O5 films were grown in a low pressure chemical vapor deposition(LPCVD) reactor. The Al/Ta2O5/p-Si and Al/Ta2O5/TiSi2/p-Si capacitors were fabricated and their capacitor characteristics were investigated. ...

    H. -S. Yang, Y. S. Choi, S. M. Cho in Journal of Electronic Materials (1999)

  10. No Access

    Article

    Solidification behavior of Al-Si-Fe alloys and phase transformation of metastable intermetallic compound by heat treatment

    Solidification behavior of Al-20 wt% Si-8 wt% Fe and Al-30 wt% Si-5 wt% Fe alloys during cooling with a cooling rate of 10 K/min has been studied using optical microscopy, X-ray diffractometry, differential th...

    Y. S. Choi, J. S. Lee, W. T. Kim, H. Y. Ra in Journal of Materials Science (1999)

  11. No Access

    Article

    The magnetic properties of Fe-based amorphous ribbons coated with various oxides using the sol–gel process

    The metal oxides MgO, BaO, Al2O3, SiO2, MgO–Al2O3, CaO–Al2O3, SrO–Al2O3, BaO–Al2O3 and MgO–SiO2 have been coated onto ribbons of the Fe-based amorphous alloy Metglas 2605S3A using a sol–gel process. The effect...

    S. H Lim, T. H Noh, Y. J Bae, H. K Chae, Y. S Choi in Journal of Materials Science (1997)