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  • 2000-2004  (4)
  • 1995-1999  (5)
  • 1960-1964  (8)
  • 1930-1934  (4)
  • 1905-1909  (1)
  • 1
    Electronic Resource
    Electronic Resource
    SURFACE-ACTIVE AGENTS—THEIR BEHAVIOR AND INDUSTRIAL USE (1964)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 56 (1964), S. 26-31 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50657a004
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  • 2
    Electronic Resource
    Electronic Resource
    Correction - "Surface-Active Agents - Their Behavior and Industrial Use" (1964)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 56 (1964), S. 10-10 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50660a600
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  • 3
    Electronic Resource
    Electronic Resource
    On two-dimensional magnetohydrodynamic turbulence (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 3282-3292 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Numerical studies of decaying two-dimensional (2D) magnetohydrodynamic (MHD) turbulence are presented. Results concern mainly the decay laws of integral quantities and the scaling properties of spectra and structure functions. The self-similarity of the decay is characterized by the invariance of the ratios of resistive and viscous dissipation rates, kinetic and magnetic energies, and mean parallel and perpendicular velocities. The energy decay rate is primarily determined by the conservation of the mean-square magnetic potential, but the process is somewhat retarded at intermediate times by current density condensation in the magnetic eddies. In contrast to the 3D case, the energy spectrum agrees with the Iroshnikov–Kraichnan (IK) law Ek∼k−3/2, but is modified by a strong anomalous bottleneck effect. Structure functions of the Elsässer fields satisfy the property of extended self-similarity, which provides accurate values of the relative scaling exponents. Also the structure functions themselves show clear scaling properties, particularly at the highest Reynolds numbers studied. The scaling exponent ζ2 is consistent with the IK spectrum, but ζ3 and ζ4 remain distinctly below unity, which is surprising in view of an exact relation suggesting ζ3=1. Finally, the role of the tearing mode in 2D MHD turbulence is revisited. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1377611
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  • 4
    Electronic Resource
    Electronic Resource
    Electron magnetohydrodynamic turbulence (1999)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 6 (1999), S. 751-758 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Electron magnetohydrodynamic (EMHD) turbulence is studied in two- and three-dimensional (2D and 3D) systems. Results in 2D are particularly noteworthy. Energy dissipation rates are found to be independent of the diffusion coefficients. The energy spectrum follows a k−5/3 law for kde〉1 and k−7/3 for kde〈1, which is consistent with a local spectral energy transfer independent of the linear wave properties, contrary to magnetohydrodynamic (MHD) turbulence, where the Alfvén effect dominates the transfer dynamics. In 3D spectral properties are similar to those in 2D. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.873312
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  • 5
    Electronic Resource
    Electronic Resource
    Instability of a magnetized plasma jet (1998)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 5 (1998), S. 2485-2488 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The stability characteristics of a plasma jet V(x)=sech2 x embedded in a parallel magnetic field B(x)=B0 tanh x are investigated. The Kelvin–Helmholtz kink mode, which dominates at small B0, is stabilized at B0=0.46, while the pinch mode remains unstable up to B0=0.96. Contrary to a nonmagnetized jet, for finite B0 the kink mode saturates quasilinearly by broadening the jet, such that B0/Vmax becomes larger than the marginal value 0.46. Including finite resistivity the nonlinear behavior is eventually governed by the tearing mode for all values of B0≠0, consisting of a single plasmoid moving along the jet. Hence the shear flow cannot stabilize the tearing mode, so that the apparent tearing stability of resistive current sheets observed in numerical simulations of magnetic reconnection is only due to finite-length effects. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872931
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  • 6
    Electronic Resource
    Electronic Resource
    Localization, the clue to fast magnetic reconnection (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 4729-4731 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The effect of localization of the resistivity is studied in the coalescence of two magnetic flux bundles. The reconnection process is consistent with the Petschek configuration, and the reconnection rate E depends only weakly on the value η0 of the resistivity at the X-point, E∝1/|log η0|. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1412600
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  • 7
    Electronic Resource
    Electronic Resource
    Two-fluid theory of collisionless magnetic reconnection (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 1002-1009 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Theoretical studies of collisionless reconnection in the framework of two-fluid theory are presented. In the high-β case (β(approximately-greater-than)1) reconnection is controlled by the whistler mode, leading to decoupling of ions from electrons on scales 〈c/ωpi. Though reconnection requires electron inertia, the reconnection rate is independent thereof, controlled only by ion inertia. Reconnection is hence much faster than in the absence of the Hall term. In the opposite limit of small β the strong axial field suppresses the whistler mode. Hence ions have to follow the electrons in the narrow reconnection layer δ∼c/ωpe, forming a macroscopic current sheet which strongly reduces the reconnection rate. Theoretical scaling laws are confirmed by numerical simulations. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872211
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  • 8
    Electronic Resource
    Electronic Resource
    ERYTHRODERMIA WITH ÇDEMA (1932)
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 44 (1932), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2133.1932.tb09591.x
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  • 9
    Electronic Resource
    Electronic Resource
    ACUTE DISSEMINATED LUPUS ERYTHEMATOSUS WITH STAPHYLOCOCCAL PYÆMIA IN A CHILD (1932)
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 44 (1932), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2133.1932.tb09543.x
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  • 10
    Electronic Resource
    Electronic Resource
    Oral health and dental care in modern-day China (2001)
    Copenhagen : Munksgaard International Publishers
    Community dentistry and oral epidemiology 29 (2001), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract – The purpose of this paper is to present salient background information on the oral care situation and organization in China and to review epidemiological literature that has been published on adults in Chinese dental journals during the last 20 years as a context for understanding ongoing oral health research activities in China. Searches were conducted through Medline as well as Chinese language catalogues and around 30 Chinese dental journals. Most oral health surveys on adults were conducted after 1970 mainly on residents living in big cities, which are also the location of major medical universities. Surveys conducted among farmers were uncommon. Dental caries and periodontal disease were the major dental diseases studied. Only a few surveys on people’s oral health knowledge, attitudes and behavior were conducted. Papers concerning dental treatment needs and utilization of dental services among adults were scarce. Sample size was usually not a major problem in these surveys but the sampling methods and diagnostic criteria used were often poorly defined. Mean DMFT scores between 2 and 6 were reported in the 35–44-year-olds and between 9 and 16 in the elderly younger than 75 years. Calculus and gingivitis were reported to be common in adult Chinese; the proportion of subjects with shallow and deep periodontal pockets was not high. Complete edentulousness in the 60–69-year-olds was usually reported to be less than 10%. About 14% of the 35–44-year-olds and 19% of the 65–74-year-olds did not brush their teeth daily/〉.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.2001.290501.x
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