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  • 1
    Electronic Resource
    Electronic Resource
    The stationary field of a buried non-symmetrical dipole (1991)
    Springer
    Pure and applied geophysics 135 (1991), S. 577-587 
    Details
    ISSN: 1420-9136
    Keywords: Stationary field ; non-symmetrical dipole ; drill string measurement-while-drilling ; half conducting space ; buried
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract A new transmitting pattern, a buried non-symmetrical electric dipole in a conducting half space, is treated theoretically. A simple formula for the stationary current field of this pattern is derived from the Laplace equation and it is confirmed by the laboratory experiments and a well site experiment. This formula gives the upper limit of the electrical signal strength at the surface, transmitted from the bottom of a drill string.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01772407
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  • 2
    Electronic Resource
    Electronic Resource
    Yangtze Delta, China: Taihu lake-level variation since the 1950s, response to sea-level rise and human impact (1999)
    Springer
    Environmental geology 37 (1999), S. 333-339 
    Details
    ISSN: 1432-0495
    Keywords: Key words Flood ; Human impact ; Lake-level and sea-level rise ; Yangtze Delta
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  Hydrological records collected from water gauge stations since the 1950s demonstrate that the Taihu lake level is rising. The average rate of the lake-level rise is 0.4–1.1 mm/year during the non-flood season, resulting directly from a rise in sea level. High rates of 3.0–5.0 mm/year of rise are even recorded during the wet season. This indicates increasing human activities such as reclamation, sluicing and embanking, which significantly hinder the expulsion of extra lake water to the coast shortly after a rainfall. Generally, the lake level of the western inlet is higher than that of the eastern outlet. However, the lake-level difference between the west and east has been diminished annually from ∼10–15 cm in the 1950s to 〈3 cm at the present time. During non-flood seasons, the lake-level difference even appears to be reversed, indicating a retrogression of the lake flow from east to west. It is predicted that the Taihu drainage basin will lose much of its natural water-expelling ability in the next 50 years as the sea level continues to rise, and retrogression will likely occur during the flood season in the near future.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002540050392
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  • 3
    Electronic Resource
    Electronic Resource
    The role of rotational tunneling in the metastable decay of rare gas cluster ions (1988)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 88 (1988), S. 6335-6340 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The decay of (Ar+3)*→Ar+2+Ar is found to be metastable on a time scale longer than 40 μs. Theoretical considerations are presented for these slow metastable dissociation rates reported in this and other studies. From model calculations it is inferred that tunneling lifetimes from 10−10 to 10 s may be observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.454471
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  • 4
    Electronic Resource
    Electronic Resource
    A scaled fundamental equation for the thermodynamic properties of carbon dioxide in the critical region (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 87 (1987), S. 1717-1725 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: A scaled fundamental equation is presented for the thermodynamic properties of carbon dioxide in the critical region. The equation is constructed by combining earlier experimental pressure data of Michels and co-workers with new specific heat data obtained by one of the authors and represents the thermodynamic properties of carbon dioxide in the critical region at temperatures from 301.15 to 323 K and at densities from 290 to 595 kg/m3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.453238
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  • 5
    Electronic Resource
    Electronic Resource
    Photodissociation of Kr+n clusters (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 93 (1990), S. 3215-3223 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The photodissociation of Kr+n (3≤n≤11) cluster ions is observed for the first time in the 565 to 630 nm wavelength range. Kr+3 has a photodissociation cross section of (8.1±0.8)×10−17 cm2 at 612 nm, while Kr+4 and Kr+5 are found to have larger photodissociation cross sections than Kr+3 with a slightly red-shifted spectrum. Only Kr+ is detected as a photofragment of Kr+3, while in the Kr+n (4≤n≤7) experiments, both Kr+2 and Kr+ photofragments are seen. As size n increases from 7 to 11, Kr+ disappears and Kr+3 appears. Laser power studies show that all are single photon photodissociation processes. For higher order Kr+n clusters (4≤n≤7) the intensity ratio between the two photodissociation products Kr+2 and Kr+ is dependent on the wavelength of the laser light used in the photodissociation, but independent of the polarization direction of the laser. Translational energy analysis of the photofragments is used to investigate the photodissociation mechanisms. In contrast to the photodissociation of Kr+3, where two types of Kr+ photofragments with different values of translational energy release are observed, only one type of Kr+2 photofragment, with zero kinetic energy release is found in the Kr+4 photodissociation. These findings are discussed in terms of the dynamics of photodissociation and possible structures of these cluster ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.458854
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  • 6
    Electronic Resource
    Electronic Resource
    Ar+3 photodissociation and its mechanisms (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 91 (1989), S. 4019-4025 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The photodissociation spectrum of Ar+3 between 520 and 620 nm is reported. A broadband peaking near 520 nm is observed with a cross section of ∼1.8×10−16 cm2 at the peak, in agreement with the findings of Levinger et al. [J. Chem. Phys. 89, 71 (1988)]. However, in the present work, a shoulder whose prominence is highly temperature dependent is observed between 545 and 555 nm. The new results are discussed in terms of various electronic transitions and pathways to dissociation. The photodissociation mechanisms are studied by translational energy analysis of photofragmentation. Three photodissociation mechanisms that involve two electronic energy surfaces are proposed which account for the experimental findings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.456832
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  • 7
    Electronic Resource
    Electronic Resource
    Role of Milk Fat Globule Membrane in Autoxidation of Milk Fat (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 56 (1991), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The influence of the milk fat globule membrane (MFGM) on oxidation of milk fat under various conditions was monitored by fatty acid analysis and oxygen consumption at 50°C. The rate of copper-catalyzed oxidation of cream containing the membrane was faster than when the membrane was removed. In the dry state, the isolated MFGM, membrane lipids (ML) and the nonlipid membrane solids (NLMS) inhibited oxidation at 50°C and 95°C. In the presence of water, however, all membrane components enhanced oxidation at 50°C. The balance between the accelerating effects of membrane components and the inhibiting influence of other factors appeared to depend on processing conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1991.tb05289.x
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  • 8
    Electronic Resource
    Electronic Resource
    Carbon-specific detection of ^2H enrichment in long chain fatty acids by ^1^3C-NMR: potential application to studies of fatty acid metabolism
    Amsterdam : Elsevier
    Chemistry and Physics of Lipids 63 (1992), S. 259-263 
    Details
    ISSN: 0009-3084
    Keywords: ^1^3C-NMR ; deuterium ; dihomo-gamma-linolenic acid ; fatty acid ; lipid
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0009-3084(92)90042-N
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  • 9
    Electronic Resource
    Electronic Resource
    High order frequency shift of a particle coupled with a set of oscillators
    Amsterdam : Elsevier
    Physica A: Statistical Mechanics and its Applications 169 (1990), S. 237-245 
    Details
    ISSN: 0378-4371
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0378-4371(90)90167-Q
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  • 10
    Electronic Resource
    Electronic Resource
    A perturbation theory for the modified nonlinear Schrodinger equation with corrections
    Amsterdam : Elsevier
    Physics Letters A 161 (1991), S. 35-40 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(91)90540-O
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