Search Results - (Author, Cooperation:I. Siddiqi)

Showing 1 - 15 results of 15, query time: 0.22s Refine Results
  1. 1
    Staff View
    Publication Date:
    2018-01-27
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    0031-9007
    Electronic ISSN:
    1079-7114
    Topics:
    Physics
    Keywords:
    General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2018-01-11
    Publisher:
    American Physical Society (APS)
    Print ISSN:
    0031-9007
    Electronic ISSN:
    1079-7114
    Topics:
    Physics
    Keywords:
    General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    Publication Date:
    2018-02-13
    Publisher:
    American Physical Society (APS)
    Electronic ISSN:
    2160-3308
    Topics:
    Physics
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
    R. Vijay ; C. Macklin ; D. H. Slichter ; S. J. Weber ; K. W. Murch ; R. Naik ; A. N. Korotkov ; I. Siddiqi
    Nature Publishing Group (NPG)
    Published 2012
    Staff View
    Publication Date:
    2012-10-06
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  5. 5
    C. Macklin ; K. O'Brien ; D. Hover ; M. E. Schwartz ; V. Bolkhovsky ; X. Zhang ; W. D. Oliver ; I. Siddiqi
    American Association for the Advancement of Science (AAAS)
    Published 2015
    Staff View
    Publication Date:
    2015-09-05
    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
  6. 6
    K. W. Murch ; S. J. Weber ; C. Macklin ; I. Siddiqi
    Nature Publishing Group (NPG)
    Published 2013
    Staff View
    Publication Date:
    2013-10-11
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  7. 7
    S. J. Weber ; A. Chantasri ; J. Dressel ; A. N. Jordan ; K. W. Murch ; I. Siddiqi
    Nature Publishing Group (NPG)
    Published 2014
    Staff View
    Publication Date:
    2014-08-01
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  8. 8
    M. P. Marimuthu ; S. Jolivet ; M. Ravi ; L. Pereira ; J. N. Davda ; L. Cromer ; L. Wang ; F. Nogue ; S. W. Chan ; I. Siddiqi ; R. Mercier
    American Association for the Advancement of Science (AAAS)
    Published 2011
    Staff View
    Publication Date:
    2011-02-19
    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
    Keywords:
    Arabidopsis/*genetics/*physiology ; Chromosome Segregation/genetics ; Chromosomes, Plant ; Crosses, Genetic ; Diploidy ; Genes, Plant ; *Genetic Engineering ; Heterozygote ; Histones/genetics ; Meiosis/genetics ; Plant Proteins/genetics ; Plants, Genetically Modified ; Reproduction, Asexual ; Seeds/*genetics/*physiology
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  9. 9
    K. W. Murch ; S. J. Weber ; K. M. Beck ; E. Ginossar ; I. Siddiqi
    Nature Publishing Group (NPG)
    Published 2013
    Staff View
    Publication Date:
    2013-07-05
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  10. 10
    Siddiqi, I. ; Verevkin, A. ; Prober, D. E.

    [S.l.] : American Institute of Physics (AIP)
    Published 2002
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    We present microwave (30 GHz) measurements on aluminum superconducting hot-electron bolometer (HEB) mixers. Aluminum HEB mixers have a lower superconducting transition temperature than niobium and niobium nitride devices, and are predicted to have improved sensitivity and require less local oscillator power. The devices studied consist of a narrow superconducting aluminum microbridge with contacts comprised of thick aluminum, titanium, and gold. A perpendicular magnetic field is used to suppress superconductivity in the contacts. The device length is much shorter than the electron–phonon inelastic length [L(very-much-less-than)(Dτe–ph)1/2] and thus the intermediate frequency (IF) bandwidth is set by the diffusion time of hot electrons from the microbridge into the contacts. We discuss limitations on the IF bandwidth in very short HEB mixers with fully normal contacts. Overall, the microwave heterodyne mixing results show good performance with a mixer noise temperature inferred from the conversion efficiency and output noise of TM≥4 K, double side band (DSB). Measurements at 618 GHz yield a conversion efficiency approximately 10 dB lower than observed at 30 GHz. Output saturation by background radiation is postulated to contribute significantly to this difference. A similar decrease in conversion efficiency in the microwave mixing measurements is observed when broadband noise is added to the rf input signal. We discuss the tradeoff between increased sensitivity and the occurrence of saturation effects in low transition temperature HEBs. © 2002 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1448865

    Articles: DFG German National Licenses
  11. 11
    Wagner, K. -H. ; Siddiqi, I. ; Wagner-Hering, F.
    Springer
    Published 1970
    Staff View
    ISSN:
    1432-1904
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Chemistry and Pharmacology
    Natural Sciences in General
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00625333

    Articles: DFG German National Licenses
  12. 12
    Wagner, K. -H. ; Siddiqi, I.
    Springer
    Published 1973
    Staff View
    ISSN:
    1432-1904
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Chemistry and Pharmacology
    Natural Sciences in General
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00594798

    Articles: DFG German National Licenses
  13. 13
    Wagner, K. -H. ; Siddiqi, I.
    Springer
    Published 1973
    Staff View
    ISSN:
    1432-1904
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Chemistry and Pharmacology
    Natural Sciences in General
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00610423

    Articles: DFG German National Licenses
  14. 14
    Wagner, K. -H. ; Siddiqi, I.
    Springer
    Published 1973
    Staff View
    ISSN:
    1432-1904
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Chemistry and Pharmacology
    Natural Sciences in General
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00594799

    Articles: DFG German National Licenses
  15. 15
    Siddiqi, I. ; Hoppe, R.

    Weinheim : Wiley-Blackwell
    Published 1970
    Staff View
    ISSN:
    0044-2313
    Keywords:
    Chemistry ; Inorganic Chemistry
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Chemistry and Pharmacology
    Description / Table of Contents:
    Hitherto unknown Cs2KSEF6 with SE = La, Pr, Sm—Lu are cubic ordered variants of the perowskite type and isotypic with K2NaCrF6, the lattice constants ranging from a = 9.65 (La) to 9.35 Å (Lu). The magnetic moments fit the calculated ones.
    Notes:
    Neu dargestellt wurden Cs2KSEF6 mit SE = La, Pr, Sm—Lu, kubische Ordnungsvarianten des Perowskit-Typs, isotyp mit K2NaCrF6 mit Gitterkonstanten a = 9,65 Å (La) bis 9,35 Å (Lu). Die magnetischen Momente entsprechen den berechneten.
    Additional Material:
    4 Tab.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/zaac.19703740302

    Articles: DFG German National Licenses