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  • 2000-2004  (13)
  • 1975-1979  (5)
  • 1970-1974  (6)
  • 1935-1939  (2)
  • 1930-1934  (2)
  • 1905-1909  (1)
  • 1890-1899  (1)
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Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Speed-dependent line profile: A test of a unified model from the Doppler to the collisional regime for molecule–molecule collisions (2000)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 113 (2000), S. 4951-4956 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: A speed-dependent line profile combining soft and hard fully correlated Dicke-narrowing collisions was recently successfully tested on Ar-broadened H2 spectra in a wide density and temperature range. A further test for mixtures of H2 in nitrogen molecules (instead of Ar atoms) is presented. This test is also based on high resolution Raman investigation of the isotropic Q(1) line of H2 from low to high density at various temperatures. The same consistency of the speed-dependent line profile as for H2–Ar is obtained for H2–N2 through a remarkable agreement with all the data by using a unique set of four parameters (the collisional width and shift, the kinetic frequency, and a characteristic velocity memory parameter). The present study is a preliminary step for the hydrogen CARS thermometry in H2–air flames at high pressure. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1287824
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Neutron Radiography (1971)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Nuclear and Particle Science 21 (1971), S. 335-364 
    Details
    ISSN: 0066-4243
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ns.21.120171.002003
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Collisional effects on spectral line shape from the Doppler to the collisional regime: A rigorous test of a unified model (2000)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 112 (2000), S. 158-166 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The paper presents high resolution Raman investigations of the Q(1) line of H2 in Ar mixture from low density (Doppler regime) to high density (collisional regime) analyzed with a unique line shape profile. Measurements are performed by stimulated Raman gain spectroscopy between 300 and 1000 K in a wide density range (from 0.2 to 11 amagat). All the observed spectral features are accurately described by a unified model recently proposed by two of the authors. This model accounts for a velocity-memory process, not restricted to the usual hard and soft limits. It also includes correlation between velocity- and phase-changing collisions. An exhaustive analysis of various possible mechanisms on the line shape is achieved. These mechanisms are the Dicke narrowing, the radiator speed dependence of the collisional broadening and shifting parameters, the collisionally induced speed-class exchange and the nonimpact effect. The present test shows the high consistency of the unified model, since it allows one to get a remarkable agreement with all the data by using a unique set of parameters. This model should be useful for optical diagnostics at moderate density, as required for combusting media or atmospheric work. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.480570
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    Paper (German National Licenses)
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  • 4
    facet.materialart.
    Unknown
    Pfeiffer, M.: Elements of Kurux historical Phonology (Book Review) (1977)
    Berlin : Periodicals Archive Online (PAO)
    Orientalistische Literaturzeitung. 72:5 (1977:Sept./Okt.) 520 
    Details
    ISSN: 0030-5383
    Topics: Linguistics and Literary Studies , Ethnic Sciences , History
    Notes: Besprechungen
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4148-1977-072-05-000024
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  • 5
    facet.materialart.
    Unknown
    Zide, N. H. [Ed.]: Studies in Comparative Austroasiatie Linguistics (Book Review) (1972)
    Berlin : Periodicals Archive Online (PAO)
    Orientalistische Literaturzeitung. 67:5/6 (1972:Mai/Juni) 286 
    Details
    ISSN: 0030-5383
    Topics: Linguistics and Literary Studies , Ethnic Sciences , History
    Notes: Besprechungen
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4148-1972-067-05-000029
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  • 6
    facet.materialart.
    Unknown
    Burrow, T., and S. Bhattacharya: The Pengo Language (Book Review) (1975)
    Berlin : Periodicals Archive Online (PAO)
    Orientalistische Literaturzeitung. 70:4 (1975:Juli/Aug.) 403 
    Details
    ISSN: 0030-5383
    Topics: Linguistics and Literary Studies , Ethnic Sciences , History
    Notes: Besprechungen
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4148-1975-070-04-000004
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  • 7
    Electronic Resource
    Electronic Resource
    Small-angle X-ray studies of the scaffold in bacteriophage λ head formation (1978)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 11 (1978), S. 496-497 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: The pathway of bacteriophage λ head formation has been well characterized in vivo and in vitro (Hohn, Katsura & Hohn, 1977). First a petit λ particle consisting of a shell protein pE, a protein pNu3 and minor proteins, but lacking DNA, is formed. The pNu3-containing structure is then converted to a structure which does not contain pNu3, and which is capable of taking up and cutting the viral DNA. The purpose of this work is to determine the scaffold structure, formed by pNu3, by small-angle scattering techniques based on the known physico-chemical properties of pNu3-containing and pNu3-lacking particles (Künzler & Hohn, 1978). The scaffold is found to be inside the protein shell but less concentrated than the 130 Å radius core reported from electron micrographs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889878013710
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    50. Indikationsfehler als Ursache von Zweiteingriffen an den ableitenden Gallenwegen (1970)
    Springer
    Langenbeck's archives of surgery 327 (1970), S. 459-462 
    Details
    ISSN: 1435-2451
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Der Nachweis von Indikationsfehlern, die zu Zweiteingriffen an den ableitenden Gallenwegen führen, erfordert einen lückenlosen Zusammenhang zwischen der ersten und zweiten Operation hinsichtlich des Beschwerdebildes und der morphologischen Veränderungen. Es wird über 120 Zweit- und Mehrfacheingriffe wegen gutartiger Erkrankungen des Gallenwegssystems unter insgesamt 1732 Gallenwegseingriffen in den letzten 6 Jahren berichtet. 60 dieser Patienten werden einer besonderen Prüfung hinsichtlich eines gemachten Indikationsfehlers unterworfen. Hieraus ergeben sich folgende Feststellungen: 1. Die Indikation zum Ersteingriff wird zu spät gestellt. 2. Die Indikation während des Ersteingriffes wird zu eng gestellt. 3. Die Indikation zur biliodigestiven Anastomose ist unseres Erachtens fehlerhaft. 4. Die Indikation zum Zweiteingriff selbst kann falsch sein.
    Notes: Summary The identification of mistakes that relate to indications necessitating second operations of the efferent bile ducts, requires that there should be a close connection between symptoms and the morphological changes of the first and second operations. This is a report of 120 second and further operations, which were due to benign disorders of the bile ducts, out of 1,732 operations of the bile ducts during the last six years. 60 of the patients were specially examined with regard to possible mistakes of indications. These were the findings: 1. The indication for the first operation was determined too late. 2. The indication for the first operation was too narrow. 3. The indication for bilio-digestive anastomosis was wrong, in my view. 4. The indication for the second operation itself may have been wrong.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01259061
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  • 9
    Electronic Resource
    Electronic Resource
    Gefäßchirurgie – Quo vadis? (2000)
    Springer
    Gefässchirurgie 5 (2000), S. 1-3 
    Details
    ISSN: 1434-3932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00010569
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  • 10
    Electronic Resource
    Electronic Resource
    Optical properties of the quasi-two-dimensional dichalcogenides 2H-TaSe and 2H-NbSe (2003)
    Springer
    The European physical journal 33 (2003), S. 15-23 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 78.20.-e Optical properties of bulk materials and thin films – 71.45.Lr Charge-density-wave systems – 74.25.Gz Optical properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We present a comprehensive analysis of the optical constants of the two-dimensional dichalcogenide materials 2 H - TaSe 2 and 2 H - NbSe 2 , in an attempt to address the physics of two-dimensional correlated systems. The title compounds were studied over several decades in frequency, from the far-infrared to the ultraviolet. Measurements with linearly polarized light have allowed us to obtain both the in-plane and out-of-plane components of the conductivity tensor. Although the electromagnetic response of dichalcogenides is strongly anisotropic, both the in-plane and out-of-plane components of the conductivity tensor share many common features, including the presence of a well-defined metallic component, as well as a “mid-infrared band”. We discuss the implications of these results in the context of the spectroscopic results of other classes of low-dimensional conductors such as the high-temperature superconducting cuprates. In particular, the analysis of the redistribution of the spectral weight as a function of temperature, as well as the behavior of the quasiparticles relaxation rate, points to significant distinctions between the charge dynamics of dichalcogenides and other classes of low dimensional conductors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e2003-00136-1
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