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  • Niederschlag  (6)
  • Aircraft Propulsion and Power  (5)
  • unknown  (5)
  • 1945-1949
  • 1940-1944  (16)
  • 1943  (6)
  • 1942  (10)
Collection
Keywords
Years
  • 1945-1949
  • 1940-1944  (16)
Year
  • 1
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    Witterung und Obstertrag (1943)
    In:  Gartenbauwissenschaft Bd. 17, S.603-615
    Details
    Publication Date: 1943
    Description: Einfluss der Temperatur und des Niederschlages auf den Ernteertrag von Birnen und Äpfeln KATASTER-BESCHREIBUNG: Durch Berechnung von Kennziffern zu Wirkung des Sommerregens auf den Obstertrag wird die Bedeutung der Niederschläge in bestimmten Monaten des Vor- und des Erntejahres bestimmt KATASTER-DETAIL: Nied+(Oktober des Vorjahres) und Nied+ (Juli des Erntejahres), dann hohe Erträge von Äpfeln und Birnen
    Keywords: Holstein ; 1916-1935 und 1921-1941 ; Apfel ; Ertrag ; Korrelationsmethode ; Niederschlag ; Rangordnungsmethode ; Temperatur ; Birne
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    BIBLIOGRAPHY INKA BB
  • 2
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    Landwirtschaftlich beachtliche Windwirkung und Windschutz in der Landwirtschaft. (1943)
    In:  Kulturtechniker, Berlin 46:19-41.
    Details
    Publication Date: 1943
    Description: Bedeutung und Wirkung des Windschutzes auf Anbauart, Fruchtfolge, Gare- und Bodenpflege, Schlageinteilung, Verdunstung, Deck-, Schutz-, Mischfrucht- und Streifenanbau KATASTER-BESCHREIBUNG: Einfluss von Windschutz auf den Ertrag KATASTER-DETAIL: Windschutz +, dann Delta T(Tag) + und Delta T(Nacht)-; Windschutz +, dann Delta Relf +; Windschutz +, dann Verdunstung -; Windschutz +, dann Bodenerosion -; Windschutz +, dann Schneeanhäufung +; angepasste Bodenbearbeitung (schollige, klumpige Bodenoberfläche), dann Wasserhaltungsfähigkeit + -〉 Windschutz +, dann Ertragserhöhung + bzw. ++ (3-400%; ++: Körnerfrüchte auf 20-25vH, Rüben, Gräser, Leguminosen; +: Sommergetreide, Hafer )
    Keywords: weltweit ; letzten100 Jahre ; Boden ; Ertrag ; Niederschlag ; Temperatur ; Verdunstung ; Wind ; Frost
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    BIBLIOGRAPHY INKA BB
  • 3
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    Operating Temperatures of a Sodium-Cooled Exhaust Valve as Measured by a Thermocouple (1943)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A thermocouple was installed in the crown of a sodium-cooled exhaust valve. The valve was then tested in an air-cooled engine cylinder and valve temperatures under various engine operating conditions were determined. A temperature of 1337 F was observed at a fuel-air ratio of 0.064, a brake mean effective pressure of 179 pounds per square inch, and an engine speed of 2000 rpm. Fuel-air ratio was found to have a large influence on valve temperature, but cooling-air pressure and variation in spark advance had little effect. An increase in engine power by change of speed or mean effective pressure increased the valve temperature. It was found that the temperature of the rear spark-plug bushing was not a satisfactory indication of the temperature of the exhaust valve.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-WR-E-140 , NACA-ARR-3L06
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    The Measurement of Fuel-Air Ratio by Analysis for the Oxidized Exhaust Gas (1943)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: An investigation was made to determine a method of measuring fuel-air ratio that could be used for test purposes in flight and for checking conventional equipment in the laboratory. Two single-cylinder test engines equipped with typical commercial engine cylinders were used. The fuel-air ratio of the mixture delivered to the engines was determined by direct measurement of the quantity of air and of fuel supplied and also by analysis of the oxidized exhaust gas and of the normal exhaust gas. Five fuels were used: gasoline that complied with Army-Navy fuel Specification No. AN-VV-F-781 and four mixtures of this gasoline with toluene, benzene, and xylene. The method of determining the fuel-air ratio described in this report involves the measurement of the carbon-dioxide content of the oxidized exhaust gas and the use of graphs for the presented equation. This method is considered useful in aircraft, in the field, or in the laboratory for a range of fuel-air ratios from 0.047 to 0.124.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-TR-757
    Format: application/pdf
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  • 5
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    NACA Investigation of a Jet-Propulsion System Applicable to Flight (1943)
    In:  CASI
    Details
    Publication Date: 2019-08-13
    Description: Following a brief history of the NACA investigation of jet propulsion, a discussion is given of the general investigation and analysis leading to the construction of the jet-propulsion ground-test mock-up. The results of burning experiments and of test measurements designed to allow quantitative flight performance predictions of the system are presented and correlated with calculations. These calculations are then used to determine the performance of the system on the ground and in the air at various speeds and altitudes under various burning conditions. The application of the system to an experimental airplane is described and some performance predictions for this airplane are made.
    Keywords: Aircraft Propulsion and Power
    Type: NACA/TR-802
    Format: application/pdf
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  • 6
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    A preliminary theoretical calculation of a propulsion system for the hydrobomb unit (1943)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: No abstract available
    Keywords: unknown
    Type: PR-2
    Format: text
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  • 7
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    Forstentomologische und andere Beobachtungen über das Tannensterben in Böhmen, Mähren und den Karpathenländern (1942)
    In:  Tharandter forstl. Jahrb. 93: 615-630
    Details
    Publication Date: 1942
    Description: Beobachtungen zwischen Absterben von Tannen, der Witterung und dem Auftreten von Schädlinen (Tannentriebwickler, Tannentrieblaus) KATASTER-BESCHREIBUNG: Zusammenhang zwischen Tannensterben und ungünstigen Standortbedingungen (trockene Flach- und Hügelland) KATASTER-DETAIL:
    Keywords: Böhmen, Mähren und den Karpathenländern ; 1930-1941 ; Tanne ; Niederschlag
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    BIBLIOGRAPHY INKA BB
  • 8
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    Zusammenhänge zwischen Jahreswitterung, Düngung und Erträgen im Dikopshofer Dauerversuch (1942)
    In:  Landwirtschaftl. Jahrbuch 68:642-686
    Details
    Publication Date: 1942
    Description: Ableitung kritischer Faktoren (Temperaturoptima und Wasserversorgung) in einzelnen Wachstumsstadien KATASTER-BESCHREIBUNG: Zusammenhang zwischen Temperaturänderung während der Blüte von Weizen und dem Ertrag KATASTER-DETAIL: Delta T + und -: Tmit von 14-15°C, Änderung um +1 K auf 16°C, aber auch Rückgang um 2K auf 13°C, dann Rückgang des Ertrages
    Keywords: Kölner Bucht ; 1907-37 ; Boden ; Ertrag ; Korrelationsmethode ; Niederschlag ; Roggen ; Temperatur ; Weizen ; Witterung ; Düngung ; Hackfrüchte
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    BIBLIOGRAPHY INKA BB
  • 9
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    Ein Verfahren zur statistischen Untersuchung der Abhängigkeit der Ernteerträge von Standort und klimatischen Faktoren. Forschungsdienst 13:301. (1942)
    In:  Forschungsdienst 13:301.
    Details
    Publication Date: 1942
    Description: Betrachtung des Klimas (Temperatur und Niederschlag) in Dekaden und Bildung von Ertrags-, Temperatur- und Niederschlagsklassen und daraus Ableitungen über die Beziehungen Ertrag und Witterung KATASTER-BESCHREIBUNG: Einfluss der Witterung (Temperatur, Niederschlag) auf den Ertrag KATASTER-DETAIL: Delta T (März) + und Delta Nied (März) +, dann Erträge +; Delta T (April -, dann Erträge +; Delta Nied (Ende Juni,Ende Juli)-, dann Erträge + Delta T (Anfang Juli) +, dann Erträge +
    Keywords: Schlesien ; 1926-38 ; Boden ; Ertrag ; Niederschlag ; Weizen ; Witterung
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  • 10
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    Eine Darstellung der ursächlichen Wechselbeziehungen zwischen Witterungsverlauf und Bodenzustand in ihren Auswirkungen auf Pflanzenwuchs und Ernte (1942)
    In:  Klima / Boden / Ernte Verlag C.V. Engelhard, Berlin. p. 7, 114-127
    Details
    Publication Date: 1942
    Description: Beziehung zwischen Witterungsablauf und Bodenzustand und deren Auswirkung auf Pflanzenwuchs und Ernte KATASTER-BESCHREIBUNG: Einfluss der Witterung auf den Ertrag von Kartoffeln KATASTER-DETAIL: Delta T (April bis Juli) -, dann Erträge (Kartoffel) +; Delta Nied (April bis Juli) -, dann Erträge (Kartoffel) -
    Keywords: Gesamtpreußen, Deutschland,Schlesien ; 1921-1932,1934 ; Zuckerrüben ; Kartoffeln ; Ertrag ; Hafer ; Landwirtschaft ; Niederschlag ; Temperatur ; Witterung ; Hackfrüchte
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  • 11
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    Spectrographic observations of peculiar stars. iii (1942)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Keywords: unknown
    Format: text
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    NASA TECHNICAL REPORTS
  • 12
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    Preliminary Investigation Directed Toward Improvement of the NACA Cowling (1942)
    In:  CASI
    Details
    Publication Date: 2018-08-03
    Description: The development of new cowlings, applicable to a short-nose radial engine, is described. These cowlings, designated the NACA cowlings D(sub s) and D(sub sf), employ a larger spinner and a higher inlet-velocity ratio than does the conventional NACA cowling C. The pressures available for cooling and the estimated critical Mach number were found to be higher with the new cowlings than are usually encountered with the conventional NACA cowling C. Large-chord propeller cuffs were found to have a stabilizing effect on the flow entering the cowling and resulted in increased front pressures. Fan blades mounted on the spinner in the inlet opening had a similar effect.
    Keywords: Aircraft Propulsion and Power
    Format: application/pdf
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  • 13
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    Experimental investigation of a new type of low-drag wing-nacelle combination (1942)
    In:  CASI
    Details
    Publication Date: 2019-05-31
    Keywords: unknown
    Type: NACA-SR-229
    Format: application/pdf
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  • 14
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    Preliminary Low-Drag-Airfoil and Flap Data from Tests at Large Reynolds Numbers and Low Turbulence (1942)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Keywords: unknown
    Type: NACA-ACR-214
    Format: application/pdf
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  • 15
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    Aerodynamic Heat-Power Engine Operating on a Closed Cycle (1942)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Hot-air engines with dynamic compressors and turbines offer new prospects of success through utilization of units of high efficiencies and through the employment of modern materials of great strength at high temperature. Particular consideration is given to an aerodynamic prime mover operating on a closed circuit and heated externally. Increase of the pressure level of the circulating air permits a great increase of limit load of the unit. This also affords a possibility of regulation for which the internal efficiency of the unit changes but slightly. The effect of pressure and temperature losses is investigated. A general discussion is given of the experimental installation operating at the Escher Wyss plant in Zurich for a considerable time at high temperatures.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-TM-1034 , Zeitschrift des Vereines Deutscher Lagenieure; 85; 22; 491-500
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  • 16
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    Studies of the reaction of nitric acid and gasoline (1942)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Keywords: unknown
    Type: REPT-11
    Format: text
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