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  • Other Sources  (2,117)
  • AERODYNAMICS  (2,110)
  • Deutschland
  • Inorganic Chemistry
  • Polymer and Materials Science
  • 1975-1979  (2,113)
  • 1930-1934  (4)
Collection
Source
Keywords
Publisher
Language
Years
Year
  • 1
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    Malaria in Deutschland (1979)
    In:  Bundesgesundheitsblatt 22, 8-13
    Details
    Publication Date: 1979
    Description: einheimische Malaria als man-made-disease KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Deutschland ; Umweltmedizin ; Infektionskrankheiten
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    BIBLIOGRAPHY INKA BB
  • 2
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    Klima und Boden in ihrer Wirkung auf das Pflanzenleben (1931)
    In:  Edward Arnold & Co., London.
    Details
    Publication Date: 1931
    Description: Allgemeine Zusammenhänge Klima und Pflanzenwachstum KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Deutschland ; Boden ; Klima ; Landwirtschaft ; Wachstum
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    BIBLIOGRAPHY INKA BB
  • 3
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    Agrarmeteorologie: die Abhängigkeit der Ernteerträge von Wetter und Klima (1930)
    In:  P. Parey, Berlin.
    Details
    Publication Date: 1930
    Description: Abhängigkeit der Erträge von Erbsen, Kartoffeln, Winterweizen und Hafer und Winterroggen von Witterungseinflüssen mithilfe der Rangordnungs- und Korrelationsmethode KATASTER-BESCHREIBUNG: Mithilfe der Abweichungen von Rangordnungszahlen für die Temperatur und den Niederschlag für einzelne, bzw. 2 Monatsabschnitte, Summen für Zeiträume und Beziehungen zun Ertrag erfolgt die Bestimmung von kritischen Zeiten KATASTER-DETAIL: Delta T (März, April) + und Delta Nied (März, April) -, dann Erträge (Erbsen) +; Delta T (Mai, Juni) - und Delta Nied (Mai, Juni) +, dann Erträge (Erbsen) +; Delta T (Oktober - vorhergehendes Jahr) +, dann Erträge (Kartoffeln) +; Delta T (März)+, dann Erträge (Winterweizen) +; Delta T (Mai, Juni) -, dann Erträge (Winterweizen) +; Delta Nied (Januar bis März) -, dann Erträge (Hafer) +; Delta Nied (Januar bis März) -, dann Erträge (Winterroggen) +;
    Keywords: Deutschland ; 1930 ; Kartoffeln ; Ertrag ; Getreide ; Hafer ; Korrelationsmethode ; Niederschlag ; Rangordnungsmethode ; Roggen ; Temperatur ; Weizen ; Witterung ; Erbsen
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  • 4
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    Deutsche Volksweisheit in Wetterregeln und Bauernsprüchen (1934)
    In:  Verlag Deutsche Landbuchhandlung, Berlin.
    Details
    Publication Date: 1934
    Description: Zusammenstellung von Bauernregeln aus Deutschland KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Deutschland ; letzten 1000 Jahre ; Ertrag ; Landwirtschaft ; Wetterbeobachtung ; Witterung
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  • 5
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    Zur Frage der Beziehungen zwischen biologischen Vorgängen und Witterung (1934)
    In:  Naturwissenschaften 22:653-656.
    Details
    Publication Date: 1934
    Keywords: Deutschland ; letzten 1000 Jahre
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    BIBLIOGRAPHY INKA BB
  • 6
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    Vergleichende Berachtung des Witterungsveralufs in den jahren 1975, 1976 und 1977 (1978)
    In:  Kartoffelbau 29 (1):15-17.
    Details
    Publication Date: 1978
    Description: Zusammenhang Kartoffelertrag und -qualität und Witterungsverlauf KATASTER-BESCHREIBUNG: Einfluss der Witterung (Temperatur, Niederschlag) auf den Ernteertrag KATASTER-DETAIL: Delta T (Mai, Juni) + und Delta Nied (Mai, Juni) -, dann Pflanzenentwicklung -; Delta Bodenfeuchte -, dann Wachstum -; Delta T (März, April) 〈 0°C, dann Schäden +;
    Keywords: Deutschland ; 1975-77 ; Kartoffeln ; Ertrag ; Landwirtschaft ; Niederschlag ; Temperatur ; Witterung
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  • 7
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    Economy of flight at supersonic speeds (1976)
    In:  CASI
    Details
    Publication Date: 2010-11-08
    Description: Prandtl's theory is used to determine the airflow over bodies and wings adapted to supersonic flight. By making use of these results, and by incorporating in them an allowance for the probable skin friction, some estimates of expected lift-drag ratios are made for various flight speeds with the best configuration. At each speed a slender body and wings having the best angle of sweepback are considered. For the range of supersonic speeds shown an airplane of normal density and loading would be required to operate at an altitude of the order of 60,000 feet. The limiting value of 1-1/2 times the speed of sound corresponds to a flight speed of 1000 miles per hour. At this speed about 1.5 miles per gallon of fuel are expected. It is interesting to note that this value corresponds to a value of more than 15 miles per gallon when the weight is reduced to correspond to that of an ordinary automobile.
    Keywords: AERODYNAMICS
    Type: Collected Works of Robert T. Jones; p 499-514
    Format: text
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  • 8
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    Aeroelastic characteristics of an oblique wing (1976)
    In:  CASI
    Details
    Publication Date: 2010-11-08
    Description: In theory, the most efficient wing shape for transonic and low supersonic speeds is simply a long narrow straight subsonic wing turned at an oblique angle to the flight direction. This theory has been verified by tests at Mach numbers from .6 to 1.4 in supersonic wind tunnel and by comparative studies of transonic transport designs.
    Keywords: AERODYNAMICS
    Type: Collected Works of Robert T. Jones; p 867-883
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  • 9
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    Aerodynamic design for supersonic speeds (1976)
    In:  CASI
    Details
    Publication Date: 2010-11-08
    Description: Recent theoretical and experimental work in supersonic aerodynamics is reviewed with its practical application in mind. Several arrangements of supporting surfaces and bodies are discussed and in some cases comparisons of theory and experiment are made. Finally, certain phenomena connected with lift and drag in a rarefied medium are considered briefly.
    Keywords: AERODYNAMICS
    Type: Collected Works of Robert T. Jones; p 625-644
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  • 10
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    Theoretical determination of the minimum drag of airfoils at supersonic speeds (1976)
    In:  CASI
    Details
    Publication Date: 2010-11-08
    Description: A method is reported for determining mathematically the combined disturbance field, and in certain cases the minimum drag, of wings at supersonic speeds. The simplest analytic example is provided by the wing of elliptic planform, which achieves its minimum drag when the lift is distributed uniformly over the surface. With a symmetrical distribution of thickness, the requirement of minimum drag for a given total volume is found to lead to profiles of constant curvature.
    Keywords: AERODYNAMICS
    Type: Collected Works of Robert T. Jones; p 567-578
    Format: text
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    NASA TECHNICAL REPORTS
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