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  • 1
    Electronic Resource
    Electronic Resource
    Special speech recognition approaches for the highly confusing Mandarin syllables based on hidden Markov models
    Amsterdam : Elsevier
    Computer Speech & Language 5 (1991), S. 181-201 
    Details
    ISSN: 0885-2308
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Linguistics and Literary Studies , Computer Science
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0885-2308(91)90024-K
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  • 2
    Electronic Resource
    Electronic Resource
    Dynamic domain instability and popcorn noise in thin-film heads : 38th Annual Conference on Magnetism and Magnetic Materials (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 6391-6393 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The effects of dynamic domain instability on popcorn noise probabilities were studied by correlating the measured popcorn noise probabilities with the instantaneous observations of dynamic domain states of thin-film heads during and after writing. Heads with large peak popcorn noise probabilities at intermediate values of write current amplitude were observed to exhibit asymmetric domain patterns and occasional popping wall motion in the yoke structure during writing. The occurrences of dynamic domain instability were imaged by comparing many instantaneous domain patterns at 10 μs after a specific write current excitation. Delayed-relaxation Barkhausen wall jumps near the backgap closure were observed occasionally in several noisy heads. Quantitative correlation between the probabilities of popcorn noise and dynamic domain instability was also obtained in a very noisy head. Dynamic domain instabilities in the yoke are thus responsible for the peak popcorn noise probabilities in thin-film heads.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.355360
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  • 3
    Electronic Resource
    Electronic Resource
    Dynamic response of domain walls on the air-bearing surface of thin-film heads : 38th Annual Conference on Magnetism and Magnetic Materials (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 6394-6396 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The domain configurations on the air-bearing surface (ABS) of inductive thin-film recording heads were studied. It was found that, instead of being a single domain structure, the ABS of a thin-film head usually has multidomains. The direction of the domain walls is neither parallel nor perpendicular to the gap plane. The magnetization was found to be in the plane of the ABS along the track width, with the magnetizations on the two sides of the domain walls either "head-to-head'' or "tail-to-tail.'' The domain walls are slanted in order to spread the magnetic charges along the wall over a larger region, thereby reducing magnetostatic energy in this configuration. The responses of the domain walls are not all in phase, and they are generally out of phase with the rotational process along the gap edge. The magnetization configuration on the ABS and in the throat and the sloped region were investigated in one head and correlated with the domain walls on the ABS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.355361
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Domain structures and dynamics near the backgap closure of thin-film heads : 35th annual conference on magnetism and magnetic materials (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 5414-5416 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Statically unstable spikelike reversed magnetic domains emanating from the backgap closure of thin-film heads have been observed with high-frequency (1–20 MHz) and high-current amplitude (20–80 mA p-p) drive fields by using a wide-field magneto-optic domain observation system with a 10-nsec exposure time. The spikelike domains are repeatedly nucleated and annihilated within the drive cycle and do not remain after removal of the excitation. The formation of spikelike domains is due to the magnetization rotation back to the nearest easy directions after fanning out near the backgap closure to carry the spreading flux out of (or converging flux into) the backgap closure. The spikelike domains block the flux flow into and out of the backgap closure at excitation frequencies above 10 MHz due to the slow domain annihilation process. It is speculated that occasional failure of these spikelike domains to annihilate after a write pulse could lead to noise when they suddenly collapse during read out.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347996
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  • 5
    Electronic Resource
    Electronic Resource
    Mevva ion source for the application of material surface modification : Proceedings of 5th international conference on ion sources (1994)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 65 (1994), S. 1295-1297 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Several versions of Mevva ion sources have been developed in our institute since 1988. It operates in a pulsed mode with a pulse length of 1.2 ms and a repetition rate of up to 50 pps. A time-averaged beam current of 10 or 50 mA has been extracted at 30–80 kV from Mevva IIA-H and Mevva IIB, respectively. In order to develop surface modification of materials by ion implantation we have constructed three kinds of Mevva ion source implantation systems. High dose (3–5×1017 cm−2) implantation with Ti, Ce, Y, and Ti+C, etc. has been carried out for improving the lifetime of metal cutting tools, relay contacts, dies, and some sophisticated components.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144985
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  • 6
    Electronic Resource
    Electronic Resource
    A gene encoding a truncated large subunit of Rubisco is transcribed and salt-inducible in rice (1995)
    Springer
    Theoretical and applied genetics 91 (1995), S. 361-366 
    Details
    ISSN: 1432-2242
    Keywords: Oryza sativa ; Rice salt-tolerant mutant ; Chimeric rbcL ; Rubisco ; Salt stress
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Using the rice salt-tolerant mutant 20 as material, a cDNA library was constructed and two salt-inducible clones, SIR5.5 and SIR8.1, were isolated by differential screening. Homology analysis revealed that the two clones together constituted a chimeric rbcL which encoded a truncated large subunit of Rubisco with 337 amino-acids, plus 64 amino-acids of unknown origin. The expressions of both the normal and the chimeric locus appeared to be developmentally regulated and salt-inducible in shoots of the salt-tolerant mutant 20 and its original variety 77–170. In roots, their expressions were salt-inducible in the salt-tolerant mutant 20 whereas no, or only premature, forms were present in the salt-treated original variety 77–170. Higher concentrations of salt reduced the expressions of both normal rbcL and the chimeric locus. ABA showed no effect on their expression.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220900
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