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  • 1
    Digitale Medien
    Digitale Medien
    Near-field subwavelength micropattern generation: Pipette guided argon fluoride excimer laser microfabrication (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 72 (1992), S. 4379-4383 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Near-field optical methods are used, together with the ability of an argon fluoride excimer laser to remove a wide variety of materials without the deposition of detectable heat, to produce structures with nanometer dimensionalities. In this new method of lithography, a hollow glass micropipette is used to guide the 193 nm light of the excimer laser to the surface to be ablated. With such micropipettes, patterns have been produced on photoresists with linewidths that are as small as 70 nm. By investigating the dimensionality of the structures drawn on the photoresist and on the substrate on which the photoresist was deposited, it appears that nonlinear characteristics of the ablation process may allow the near-field dimensionalities to be maintained at distances that are relatively remote from the tip of the pipette aperture.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.352203
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  • 2
    Digitale Medien
    Digitale Medien
    The plasma as a phase conjugate reflector (1988)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 31 (1988), S. 2144-2151 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Plasma is a nonlinear medium and two waves propagating in it interact electromagnetically with each other. If the plasma is pumped by two strong counterstreaming waves of equal frequency, and a third wave enters, the nonlinear interaction generates a fourth wave, phase conjugate to the third wave. This interaction becomes very significant if the frequency and wave vector differences between the third wave and one of the pump waves resonate with the frequency and wave vector of the ion acoustic mode of the plasma. This resonance can be predicted from a fluidlike description of the plasma, but it is shown that the Vlasov description can provide more details of behavior near the resonance. Possible applications of the emergent technology range from improved focusing of radiation in hyperthermia therapy of cancer to the formation of a microwave laser between a phase conjugate plasma reflector and a mirror, for improved radar imaging. Another application is cordless, self-guiding, power transmission.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.866614
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  • 3
    Digitale Medien
    Digitale Medien
    The correlation between spectra and the number of neutrons evaporated from an excited nucleus
    Amsterdam : Elsevier
    Nuclear Physics 40 (1963), S. 293-295 
    Details
    ISSN: 0029-5582
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1016/0029-5582(63)90272-4
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  • 4
    Digitale Medien
    Digitale Medien
    The storage and recall of auditory memory (1990)
    Springer
    Journal of mathematical biology 28 (1990), S. 113-119 
    Details
    ISSN: 1432-1416
    Schlagwort(e): Audition ; Memory ; Music ; Pattern recognition
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Mathematik
    Notizen: Abstract The architecture of the auditory memory is investigated. The auditory information is assumed to be represented by f−t patterns. With the help of a psycho-physical experiment it is demonstrated that the storage of these patterns is highly folded in the sense that a long signal is broken into many short stretches before being stored in the memory. Recognition takes place by correlating newly heard input in the short term memory to information previously stored in the long term memory. We show that this correlation is performed after the input is accumulated and held statically in the short term memory.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00171522
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  • 5
    Digitale Medien
    Digitale Medien
    Recall of associated memories (1987)
    Springer
    Journal of mathematical biology 25 (1987), S. 511-519 
    Details
    ISSN: 1432-1416
    Schlagwort(e): Memory ; Recall ; Serial association ; Memory failures
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Mathematik
    Notizen: Abstract A mechanism of serial association in the brain is discussed. The passage from one state to another is assumed to be effected by a control operated by the thalamus on the cortex. Memory failure mechanisms are discussed, such as insufficient imprint, as well as Freudian failure phenomena.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00276196
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