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  • Articles  (61)
  • Other Sources
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (33)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (28)
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  • Articles  (61)
  • Other Sources
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  • 1
    Electronic Resource
    Electronic Resource
    Isolation of hymenovin from Hymenoxys richardsonii (pingue) and Dugaldia hoopesii (orange sneezeweed) (1976)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 24 (1976), S. 681-682 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60205a019
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  • 2
    Electronic Resource
    Electronic Resource
    Point Defects and Atomic Diffusion in Metallic Glasses (1987)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 15-18 (Jan. 1987), p. 349-368 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/00/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.15-18.349.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis and Characterisation of High-T〈sub〉c〈/sub〉 Bulk Superconductors, Films and Devices (1993)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 137-139 (Aug. 1993), p. 707-734 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/00/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.137-139.707.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of Hall current and wall temperature oscillation on convective flow in a rotating fluid through porous medium (1990)
    Springer
    Heat and mass transfer 25 (1990), S. 205-208 
    Details
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Hier werden alle Einflüsse von Hallstrom und Plattentemperaturschwingungen auf eine hydromagnetische freie Konvektionsströmung durch ein poröses Medium analysiert. Das Medium wird von einer unendlichen, vertikalen Begrenzungsoberfläche in einem rotierenden Fluid eingeschränkt. Die Ansauggeschwindigkeit senkrecht zur Begrenzungsoberfläche bleibt konstant. Die Temperatur der Begrenzungsoberfläche schwankt mit der Zeit um einen konstanten, von Null verschiedenen Wert. Aussagen über die Geschwindigkeit und die Temperaturfelder werden hieraus abgeleitet und die Geschwindigkeit und Scherbeanspruchung bestimmt.
    Notes: Abstract The combined effects of Hall current and plate temperature oscillation on the hydromagnetic free convective flow through a porous medium bounded by an infinite vertical limiting surface in a rotating fluid are discussed. The suction velocity perpendicular to the limiting surface is constant and the temperature of the limiting surface fluctuates with time about a non-zero constant mean. The expressions for the velocity and temperature fields are derived, and the effects of various parameters on the velocity and shear-stress are determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01785406
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  • 5
    Electronic Resource
    Electronic Resource
    Hall effects on free convective flow and mass transfer through a porous medium (1988)
    Springer
    Heat and mass transfer 22 (1988), S. 223-225 
    Details
    ISSN: 1432-1181
    Keywords: Hall currents ; Magnetohydrodynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Es wird eine theoretische Analyse der instationären Naturkonvektion und des Stoffüberganges durch ein poröses Medium vorgestellt, das durch eine unendliche vertikale Platte begrenzt ist und in dem Halleffekte, aufgebracht durch ein starkes magnetisches Feld rechtwinklig zur Strömung der freien Konvektion und unter einem bestimmten Winkel zur Vertikalen, zu berücksichtigen sind. Der Einfluß der Hallströme auf die Konvektion (primär und sekundär) wird für verschiedene Werte des Winkels zur Vertikalen studiert.
    Notes: Summary A theoretical analysis of unsteady free convective and mass transfer flow through a porous medium bounded by an infinite vertical plate taking Hall effects into consideration is presented when a strong magnetic field is imposed in a direction which is perpendicular to the free stream and makes an angleα to the vertical direction. The effect of Hall currents on the flows (primary and secondary) are studied for various values ofα.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01052991
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  • 6
    Electronic Resource
    Electronic Resource
    Hall effects on the oscillatory MHD flow through porous medium in a rotating fluid (1988)
    Springer
    Heat and mass transfer 23 (1988), S. 235-238 
    Details
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Bei der Betrachtung von Hallströmen wird die unstetige magnetohydrodynamische Strömung durch ein poröses Medium, begrenzt durch eine unendlich lange senkrechte Fläche in einem rotierenden Rahmen, für den Fall theoretisch untersucht, daß ein starkes magnetisches Feld in einer Ebene, die den Winkel a mit der normalen auf die Fläche einschließt, angelegt wird. Der Einfluß der Hallströme auf die Geschwindigkeit und die Temperaturverteilung wird für verschiedene Werte vonα graphisch dargestellt. Wärme- und Stofflibertragung 23 (1988)
    Notes: Abstract Taking Hall currents into account the unsteady magnetohydrodynamical flow through a porous medium bounded by an infinite vertical limiting surface in a rotating frame of reference is theoretically investigated when a strong magnetic field is imposed in a plane which makes an angle a with the normal to the plate. The influence of Hall currents on the velocity and temperature distribution are shown graphically for various values of α.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01807326
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  • 7
    Electronic Resource
    Electronic Resource
    MHD convective flow in a rotating fluid with Hall and ion-slip currents (1991)
    Springer
    Heat and mass transfer 26 (1991), S. 203-205 
    Details
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Das Ziel dieser Arbeit ist die theoretische Untersuchung der stetigen magnet-hydrodynamischen Konvektionsströmung eines teilweise ionisierten Gases nach einer unendlichen vertikalen porösen Platte, die sich einem rotierenden Referenz-Rahmen befindet, unter Einfluß von Hall- und Ionenschlupfströmen. Ein gleichmäßig starkes Magnetfeld wurde senkrecht zur Platte errichtet, das Fluid wird senkrecht abgesaugt, während der Wärmestrom an der Platte konstant ist. Eine analytische Lösung des Problems wurde erhalten und der Einfluß von Hall- und Ionenschlupfströmen, wie auch die anderen Parameter, die dieses Problem betreffen, wurden diskutiert und graphisch dargestellt.
    Notes: Abstract Taking Hall and Ion-slip currents into account the steady magnetohydrodynamic convective flow of a partially ionized gas past an infinite vertical porous plate in a rotating frame of reference is investigated theoretically. A strong magnetic field of uniform strength is applied perpendicular to the plate and the fluid is subjected to a normal suction velocity while the heat flux at the plate is constant. An analytic solution of the problem is obtained and the effect of Hall and ion-slip currents, as well as the other parameter entering into the problem, are discussed and shown graphically.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01590249
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  • 8
    Electronic Resource
    Electronic Resource
    Surface properties of electrodeposited a-Si : C : H : F thin films by X-ray photoelectron spectroscopy (1997)
    Springer
    Journal of materials science 32 (1997), S. 6305-6310 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Surface properties of amorphous silicon thin films containing hydrogen, flourine and carbon obtained from hydrofluosilicic acid and ethylene glycol using the electrodeposition method are reported as a function of current density and deposition time. The Si2p core level X-ray photoelectron spectra exhibited binding-energy shifts corresponding to SiFx (x=1–4), SiC, Si–H and Si–O2 type bond formations. The shifts in 1s spectra of fluorine, carbon and oxygen confirmed the presence of fluorine, carbon and oxygen in bonded form. Theoretical binding-energy shifts calculated from Pauling's electronegativity values were in close agreement with the measured values. The relative concentration values of C/Si estimated in these films were found to be larger than those of F/Si and O/Si. The results were corroborated with infrared spectroscopy and scanning electron microscopy data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018653631062
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  • 9
    Electronic Resource
    Electronic Resource
    A single cell high order scheme for the convection-diffusion equation with variable coefficients (1984)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 4 (1984), S. 641-651 
    Details
    ISSN: 0271-2091
    Keywords: Convection-Diffusion ; Finite Difference ; High Order ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A new finite difference scheme for the convection-diffusion equation with variable coefficients is proposed. The difference scheme is defined on a single square cell of size 2h over a 9-point stencil and has a truncation error of order h4. The resulting system of equations can be solved by iterative methods. Numerical results of some test problems are given.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650040704
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  • 10
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    Nonlinear mixed-effects height to crown base model based on both airborne LiDAR and field datasets for Picea crassifolia Kom trees in northwest China (2020)
    Elsevier
    Details
    Publication Date: 2020-10-01
    Print ISSN: 0378-1127
    Electronic ISSN: 1872-7042
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Elsevier
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