Search Results - (Author, Cooperation:K. J. Chang)

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  1. 1
    Chang, M., Sionov, E., Khanal Lamichhane, A., Kwon-Chung, K. J., Chang, Y. C.
    The American Society for Microbiology (ASM)
    Published 2018
    Staff View
    Publication Date:
    2018-03-28
    Publisher:
    The American Society for Microbiology (ASM)
    Print ISSN:
    0066-4804
    Electronic ISSN:
    1098-6596
    Topics:
    Biology
    Medicine
    Published by:
    http://www.asm.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Ha-Jun Sung, W. H. Han, In-Ho Lee, and K. J. Chang
    American Physical Society (APS)
    Published 2018
    Staff View
    Publication Date:
    2018-04-12
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    0031-9007
    Electronic ISSN:
    1079-7114
    Topics:
    Physics
    Keywords:
    Condensed Matter: Electronic Properties, etc.
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    S. Cho ; S. Kim ; J. H. Kim ; J. Zhao ; J. Seok ; D. H. Keum ; J. Baik ; D. H. Choe ; K. J. Chang ; K. Suenaga ; S. W. Kim ; Y. H. Lee ; H. Yang
    American Association for the Advancement of Science (AAAS)
    Published 2015
    Staff View
    Publication Date:
    2015-08-08
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
    Staff View
    Publication Date:
    2018-07-18
    Publisher:
    American Heart Association (AHA)
    Print ISSN:
    1941-9651
    Electronic ISSN:
    1942-0080
    Topics:
    Medicine
    Keywords:
    Computerized Tomography (CT), Prognosis
    Published by:
    http://www.americanheart.org/

    Latest Papers from Table of Contents or Articles in Press
  5. 5
    Cho, Hoon Young ; Kim, Eun Kyu ; Min, Suk-Ki ; Chang, K. J. ; Lee, Choochon

    [S.l.] : American Institute of Physics (AIP)
    Published 1990
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The passivation and dissociation process of the hydrogen-Si donor complex in plasma-hydrogenated GaAs was presented. The temperature dependent values of dissociation frequencies νd which the first-order kinetics permit, satisfy the relation νd=5.7×1013 exp(−1.79±0.05 eV/kT) s−1 for the no-biased anneals. During electric-field-enhanced anneal experiments, we confirm that no in-diffusion from the passivated region to the bulk is observed in the temperature ranges below 150 °C, and that there is a dissociation frequency region independent of the annealing temperature. Finally, from the electric field annealing experiment on the passivated donor in n-type GaAs, it is suggested that the hydrogen atom in Si-doped GaAs exposed to the plasma hydrogen is negatively charged with the gain of free electrons and passivates the Si donor, and also that the hydrogen atom or the electron of the hydrogen-Si donor complex can be easily released by the electric field.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.347070

    Articles: DFG German National Licenses
  6. 6
    Kee, Chul-Sik ; Kim, Jae-Eun ; Park, Hae Yong ; Chang, K. J.

    [S.l.] : American Institute of Physics (AIP)
    Published 2000
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    We investigate acoustic band gaps (ABGs) in a two-dimensional lattice of cylinders for the cases of constant impedance, Z, and constant velocity, v. ABGs become wider for the case of constant v (varying Z), and become smaller, eventually disappearing in the opposite case. As the volume fraction increases, the upper (bottom) edge of the stop band increases (decreases) and then decreases (increases) in composites with impedance variation only, so that the midgap frequency changes very little and a larger ABG can be created. The upper (bottom) edge of the stop band increases (decreases) when the impedance ratio increases, so that the midgap frequency decreases slightly and the size of the ABG increases. © 2000 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.372064

    Articles: DFG German National Licenses
  7. 7
    Cho, Hoon Young ; Kim, Eun Kyu ; Min, Suk-Ki ; Chang, K. J. ; Lee, Choochon

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1991
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    New metastable behavior of deep levels is found in hydrogenated GaAs doped with Si. A deep level at 0.60 eV below the conduction-band minimum (Ec) is generated during hydrogenation and shows metastable for the Ec − 0.42 eV trap. From the defect transformations observed in biased anneals, these defects are found to be metastable defects associated with hydrogen atoms. Especially, the 400 K biased-anneal experiments indicate that an Ec−0.33 eV trap could be an electric field induced defect, transformed from other intrinsic defects. The Ec − 0.60 eV trap in hydrogenated GaAs could be a hydrogen complex associated with Ec − 0.42 eV trap and the hydrogen atom plays an important role in a metastability of deep level defects in GaAs.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.105056

    Articles: DFG German National Licenses
  8. 8
    Lee, Choong Hun ; Lee, Choochon ; Chang, K. J. ; Kim, Sung Chul ; Jang, Jin

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1991
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The effects of hydrogen plasma exposure on the characteristics of an n-channel metal-oxide-semiconductor field-effect transitor are studied. The helium plasma gives almost no changes in maximum transonductance and subthreshold slope whereas the hydrogen plasma degrades maximum transconductance and increases subthreshold slope. These results indicate that the excess interface traps are generated by hydrogenation, which is also confirmed by quasi-static capacitance-voltage analysis.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.104951

    Articles: DFG German National Licenses
  9. 9
    Chadi, D. J. ; Chang, K. J.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1989
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The energetics of self-compensation through atomic relaxation around acceptor impurities in ZnSe were examined via first principles total energy calculations. We find large charge state and impurity-dependent lattice relaxations for As and P acceptors which can account for the experimentally observed difficulties in obtaining low-resistivity p-type ZnSe from these dopants. A much smaller relaxation is found for Li.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.101837

    Articles: DFG German National Licenses
  10. 10
    Au, L.-C. ; Chou, J.-S. ; Chang, K.-J. ; Teh, G.-W. ; Lin, S.-B.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0167-4781
    Keywords:
    (C. rhodostoma) ; Hemorrhagic protein ; Platelet aggregation inhibitor ; Precursor protein ; cDNA sequence
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0167-4781(93)90190-O

    Articles: DFG German National Licenses
  11. 11
    Chang, K.-J. ; Jacobs, S. ; Cuatrecasas, P.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0005-2736
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0005-2736(75)90011-5

    Articles: DFG German National Licenses
  12. 12
    Jacobs, S. ; Chang, K.-J. ; Cuatrecasas, P.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0006-291X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0006-291X(75)90564-1

    Articles: DFG German National Licenses
  13. 13
    Liu, Y.-W. ; Chang, K.-J. ; Liu, Y.-C.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0014-4827
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1006/excr.1993.1269

    Articles: DFG German National Licenses
  14. 14
    Chang, K.-J. ; Triggle, D.J.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0022-5193
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0022-5193(73)90168-9

    Articles: DFG German National Licenses
  15. 15
    Chang, K.-J. ; Triggle, D.J.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0022-5193
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0022-5193(73)90169-0

    Articles: DFG German National Licenses
  16. 16
    Staff View
    ISSN:
    0006-291X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0006-291X(85)91889-3

    Articles: DFG German National Licenses
  17. 17
    Staff View
    ISSN:
    0006-291X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0006-291X(82)91981-7

    Articles: DFG German National Licenses
  18. 18
    Xuan, Y.-T. ; Su, Y.-F. ; Chang, K.-J. ; Watkins, W.D.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0006-291X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0006-291X(87)90615-2

    Articles: DFG German National Licenses
  19. 19
    Staff View
    ISSN:
    0006-291X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0006-291X(91)90475-M

    Articles: DFG German National Licenses
  20. 20
    Staff View
    ISSN:
    0006-291X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0006-291X(77)90585-X

    Articles: DFG German National Licenses