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  • Springer  (76)
  • Nature Publishing Group  (3)
  • Macmillian Magazines Ltd.
  • Washington, DC : United States Gov. Print. Off.
  • American Association of Petroleum Geologists (AAPG)
  • 1
    Series available for loan
    Series available for loan
    Washington, DC : United States Gov. Print. Off.
    Associated volumes
    Call number: SR 90.0001(1142-G)
    In: U.S. Geological Survey bulletin
    Type of Medium: Series available for loan
    Pages: III, G-16 S. + 7 pl.
    Series Statement: U.S. Geological Survey bulletin 1142-G
    Language: English
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 2
    Series available for loan
    Series available for loan
    Washington, DC : United States Gov. Print. Off.
    Associated volumes
    Call number: SR 90.0001(1141-O)
    In: U.S. Geological Survey bulletin
    Type of Medium: Series available for loan
    Pages: III, O-24 S. + 1 pl.
    Series Statement: U.S. Geological Survey bulletin 1141-O
    Language: English
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 3
    Publication Date: 2001-04-01
    Print ISSN: 0090-4341
    Electronic ISSN: 1432-0703
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Published by Springer
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 16 (1978), S. 279-287 
    ISSN: 1432-0630
    Keywords: 42.80 ; 85.30
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Optical projection of masks is a very troublesome task if dimensions are in the submicron range. It is difficult to get an undistorted image in the resist. This problem can be overcome by introducing corrections in the penultimate mask. Till now this has been done by a trial and error method in which an acceptable pattern is made only after a time consuming iterative process. In this paper a description will be given of the image forming process in which diffraction at the penultimate mask and at the aperture of the lens are the critical features. Based upon this theory correction formulas are derived for the direct design of penultimate masks. Rules for maximum edge sharpness are given, so that the tolerance demands on the production process can be relaxed. Extensive experimental measurements are in good agreement with theory. It will be shown theoretically as well as practically that by asymmetrical arrangement of the optical system images of gratings with 0.2–0.3 μm linewidth can be obtained.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 2 (1973), S. 137-142 
    ISSN: 1432-0630
    Keywords: Thin MnBi films ; Coercive force ; Rayleigh curve
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Statistical Rayleigh-curve theory is applied to thin evaporated MnBi films in order to obtain information concerning the density of wall pinning centra. The treatment results in a prediction of the coercive forceH c and the average distance between adjacent wall pinning centra, 2L 0. The coercive forceH cis also measured experimentally. The results of the two methods are in good agreement with each other. The influence of dislocations on the coercive force is discussed briefly.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 1 (1982), S. 431-441 
    ISSN: 0392-6737
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si discute lo scattering elastico di elettroni dagli atomi di cesio e xenon ad energie di collisione al di sotto dei 40 eV. Si studia l'uso del potenzialeX α con α=0.55 e si confrontano i nostri calcoli che usano questo potenziale con sezioni d'urto sperimentali. Si è trovato un ragionvole accordo con le distribuzioni angolari misurate di Gehenn e Reichert, Kleweret al., respettivamente, in contrasto con i calcoli esistenti di Fink e Yates, Walker e McCarthyet al.
    Abstract: Резюме Обсуждается упругое рассеяние электронов на атомах ксенона и цезия при энергиях ниже 40 эВ. Мы анализируем использованиеХ α-потеициала с α=0.55 и сравниваем наши вычисления, использующие этот потенциал, с экспериментальными поперечными сечениями. Получено разумное согласие с угловыми распределениями, измеренными Гехеном и Райхертом и Клевером и др., в иротивоположность существующим вычислениям Финка и Ятса, Уолкера и Маккарти и др.
    Notes: Summary The elastic scattering of electrons from caesium and xenon atoms at collision energies below 40 eV is discussed. We study the use of theX α-potential with α=0.55 and compare our calculations using this potential with experimental cross-sections. Reasonable agreement has been found with the measured angular distributions of Gehenn and Reichert and Kleweret al., respectively, in contrast to the existing calculations of Fink and Yates, Walker and McCarthyet al.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 197 (1963), S. 108-108 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] There are conflicting opinions on whether olfactory acuity is a reliable, reproducible index of appetite, hunger, or satiety. According to Goetzl2, freely selected meals, as well as administration of sucrose solutions, were preceded by increased olfactory acuity and followed by decreased acuity. ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 191 (1961), S. 1270-1272 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PHOTO-POLAROGRAPHY, originating from the synthesis of photo-chemistry and polarography, records photokinetic-currents caused by photo-depolarizers, as well as their dark reactions. Photo-depolarizers in a restricted sense can be defined as follows. They originate from a photo-reaction, for ...
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillian Magazines Ltd.
    Nature 418 (2002), S. 509-512 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Since the invention of the first magnetic memory disk in 1954, much effort has been put into enhancing the speed, bit density and reliability of magnetic memory devices. In the case of magnetic random access memory (MRAM) devices, fast coherent magnetization rotation by precession of the entire ...
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 321 (1986), S. 200-201 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] RECENT work on chemotaxis in bacteria (Escherichia coli and Salmonella typhi-murium) has focused on transducers, a set of membrane proteins that process information about changes in concentration of various sugars and amino acids. Cells lacking any one of these proteins are defective in taxis for ...
    Type of Medium: Electronic Resource
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