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  • 1
    Monographie ausleihbar
    Monographie ausleihbar
    Linear growth rates of ice crystals grown from the vapor phase (1972)
    Amsterdam : North-Holland Publ. Co.
    Dazugehörige Bände
    Details Verfügbarkeit
    Signatur: MOP S 9993
    In: Journal of crystal growth
    Materialart: Monographie ausleihbar
    Seiten: 21-31
    Serie: Journal of crystal growth
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Monographie ausleihbar
    Monographie ausleihbar
    Preliminary report on a field research program carried out in the Olympic Mountains of Washington State (1966)
    Seattle : Univ. of Washington
    Dazugehörige Bände
    Details Verfügbarkeit
    Signatur: MOP 34006
    In: Contributions from the Cloud Physics Group
    Materialart: Monographie ausleihbar
    Seiten: 39 S. : graph. Darst., Tab.
    Serie: Contributions from the Cloud Physics Group
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    The System Sulfur Dioxide-Ammonia-Water at 25° C. (1967)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 6 (1967), S. 40-48 
    Details
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/i160021a006
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Polarization Charging Effect and Thundercloud Electrification (1972)
    [s.l.] : Nature Publishing Group
    Nature 240 (1972), S. 232-233 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Comparing theoretical results5 with the data, we find that the relationship between the distributions of size and charge are as expected. Also, the results are quantitatively described by the theory of polarization charging below an absolute value of potential gradient of 5,000 V m"1. Above this ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/240232a0
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  • 5
    Digitale Medien
    Digitale Medien
    A spiral procedure for selecting a triangular grid from random data (1983)
    Springer
    Zeitschrift für angewandte Mathematik und Physik 34 (1983), S. 231-235 
    Details
    ISSN: 1420-9039
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik , Physik
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Eine Anzahl von Dreiecksalgorithmen, die Punkte unregelmäßiger Datengruppen verbinden, sind während der letzten zehn Jahre entwickelt worden. Die vorliegende Arbeit beschreibt ein einfaches Schema, das eine implizite Geometrie verwendet, die allen Gruppen von Flächendatapunkten gemeinsam ist.
    Notizen: Abstract A variety of triangulation algorithms to link points of irregular data sets have been developed over the last decade. Presented here is a simple scheme which utilizes an implicity geometry common to all sets of planar points.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00944594
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    The logarithmic profile in wind erosion: An algebraic solution (1986)
    Springer
    Boundary layer meteorology 34 (1986), S. 303-310 
    Details
    ISSN: 1573-1472
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Notizen: Abstract This paper presents a simple algebraic approach to the interpretation of wind erosion data that allows for density variation close to the surface due to the presence of large amounts of saltating material. The effect explains nonlinearities in the logarithmic velocity profile near the surface and extends the profile into the saltating layer.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00122384
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Wetting and spreading of molten aluminium against AlN surfaces (1997)
    Springer
    Journal of materials science 32 (1997), S. 3243-3248 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract Wetting and spreading of molten aluminium against AlN substrates were investigated between 1100 and 1290°C. The contact angles decreased linearly with time under isothermal conditions between 1100 and 1200°C. The isothermal rate of spreading of molten aluminium against AlN substrates was constant between 1220 and 1290°C and the rate increased exponentially with increasing temperature. Crystals of Al4C3 nucleated and grew on the substrate surface beneath the liquid. However, the formation of Al4C3 may not be solely responsible for the changes in contact angle and spreading. It is postulated that carbon contamination from the substrate and/or experimental equipment coupled with the low oxygen partial pressure of the chamber in the presence of graphite, were primarily responsible for the observed contact angle and spreading phenomena. The activation energy for the spreading process was 448 kJ mol-1, suggesting the presence of some chemical reaction at the interface. Carbon-rich aluminium may be initiating a continuous surface reaction with the AlN substrates by reducing the native oxide layer on the substrate surface.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1018671222266
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  • 8
    Digitale Medien
    Digitale Medien
    A mathematical model of suspension with saltation (1995)
    Springer
    Acta mechanica 108 (1995), S. 1-22 
    Details
    ISSN: 1619-6937
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Summary A theoretical approach to the treatment of wind erosion data, particularly from a wind tunnel, is presented. Considerations are given to the utilisation of a real data set in validation of the model, data that will be presented in a forthcoming paper. Following this, the physics of particle suspension, saltation and the turbulent boundary layer are examined. Two different mathematical models evolve: one considers only suspension, another evokes Bagnold's observation that eroding material merely shifts the velocity profile and the effect of the airborne material on the effective density of the air parcel. These produce a final, relatively simple expression that credibly fits the data of Gerety and Slingerland. A critique of the approach reveals it to be an adequate expression of the known mechanisms of suspension and saltation. Derived algebraic forms for integrated collectors show several of the same “logarithmic power” dependences. Importantly, the results show little influence of saltation itself on the profile. It appears that the saltation process is responsible for a feedback such that the eddy diffusion process for particle movement is effectively enhanced. The combination of an appropriate correction of the pitot data (following Scott and Carter) and a complete mass balance has removed the “kink” from the velocity profile and also the need to consider the saltation process itself in the particle mass balance.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01177324
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  • 9
    Digitale Medien
    Digitale Medien
    A mathematical model of saltation (1997)
    Springer
    Acta mechanica 124 (1997), S. 199-211 
    Details
    ISSN: 1619-6937
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Summary This paper presents a model of the uplift by wind of heavy (i.e. saltating and unaffected by turbulent diffusion) soil particles. Detailed trajectories are not calculated, although trajectory heights are required and this necessitates taking account of the drag on particles. Quantities required as input are (a) the mass-concentration at a height equal to the roughness length above the surface for each size class, (b) the roughness length of the undisturbed surface, and (c) the friction velocity which is assumed to be controlled by the overlying wind and unaffected by erosion. The model is combined with a previously bublished model for lighter particles and applied to hypothetical size distributions for a range of friction velocities. Mean-diameter profiles and horizontal fluxes are obtained and found to agree well with observations by various workers.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01213025
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  • 10
    Digitale Medien
    Digitale Medien
    Kohlenwasserstoffe, Kraftstoffe (1933)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 91 (1933), S. 464-468 
    Details
    ISSN: 1618-2650
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01354049
    Standort Signatur Erwartet Verfügbarkeit
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