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  • Seismology  (14)
  • Niederschlag  (9)
  • Getreide  (6)
  • AERODYNAMICS
  • Animals
  • Fluid Mechanics and Thermodynamics
  • Weizen
  • 1945-1949  (11)
  • 1925-1929  (19)
  • 1946  (11)
  • 1928  (19)
Collection
Years
  • 1945-1949  (11)
  • 1925-1929  (19)
Year
  • 1
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    California Institute of Technology Pasadena
    In:  Seismological Laboratory Bulletin, Milano, California Institute of Technology Pasadena, vol. 1945, no. 6, pp. 130, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1946
    Keywords: Seismology ; Earthquake catalog ; Seismicity
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  • 2
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    In:  Gerlands Beitr. Geophys., Amsterdam, Schweizerbart'sche Verlagsbuchhandlung, vol. 19, no. 12, pp. 73-98, pp. L12S09, (ISSN 0016-8548, ISBN 3-510-50045-8)
    Publication Date: 1928
    Keywords: AUD ; Magnitude ; Location ; Seismology ; Nearfield
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  • 3
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    In:  Zeitschrift für Geophysik, Jena, Gustav Fischer, vol. 4, no. 3, pp. 246-250, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1928
    Keywords: NOISE ; Seismology
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  • 4
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    In:  Trans., Am. Geophys. Union, Milano, California Institute of Technology Pasadena, vol. 27, no. 6, pp. 111-117, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1946
    Keywords: Micro seismicity ; Seismology ; Meteorology ; EOS
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  • 5
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    In:  Trans., Am. Geophys. Union, Milano, California Institute of Technology Pasadena, vol. 27, no. 6, pp. 559-560, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1946
    Keywords: Seismology ; Seismicity ; EOS
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  • 6
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    In:  Trans., Am. Geophys. Union, Milano, California Institute of Technology Pasadena, vol. 27, no. 6, pp. 776, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1946
    Keywords: Nuclear explosion ; Seismology ; Seismicity ; Waves ; EOS
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  • 7
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    In:  Bull. Seism. Soc. Am., Milano, California Institute of Technology Pasadena, vol. 36, no. 6, pp. 327-330, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1946
    Keywords: Nuclear explosion ; Seismology ; BSSA
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  • 8
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    In:  Bull. Geol. Soc. Am., Milano, California Institute of Technology Pasadena, vol. 1253, no. 6, pp. 776, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1946
    Keywords: Tectonics ; Seismology ; Seismicity
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  • 9
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    In:  Forschungen und Fortschritte, Jena, Gustav Fischer, vol. 4, no. 3, pp. 357-358, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1928
    Keywords: NOISE ; Seismology
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  • 10
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    In:  Vereinigten Friedrichs-Universität Halle-Wittenberg, Halle.
    Publication Date: 1928
    Description: Ertragsrelevante Korrelationen bei Winterweizen und -gerste mit der Temperatur, bei allen übrigen Kulturen war Niederschlag entscheidend KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Saalkreis, Kreis Bitterfeld, Kreis Delitzsch, Kreis Wittenberg, südl. Teil Kreis Köthen ; 1900-26 ; Kartoffeln ; Boden ; Ertrag ; Getreide ; Hafer ; Niederschlag ; Rangordnungsmethode ; Roggen ; Temperatur ; Weizen ; Witterung ; Hackfrüchte
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  • 11
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    In:  Georgine, Königsberg 104 (10):65-66
    Publication Date: 1928
    Description: Einluß von Temperatur und Niederschlag in bestimmten Zeiträumen auf das Tausendkorngewicht (TKG) KATASTER-BESCHREIBUNG: Zusammenhang Niederschlag, Temperatur und Sonnenscheinstunden zum Tausendkorngewicht (Ertrag) von Weizen, Roggen und Gerste KATASTER-DETAIL: Delta T (0,48-1,9°C während der Vegetationszeit April-August über dem Mittel der Jahre 1921-26) und Delta Nied (-25- +52% vom Schossen bis zur Ernte über dem Mittel der Jahre 1921-26), dann höhreres TKG um 11,6-21,4%
    Keywords: Pommern ; 1921-1926 ; Ertrag ; Getreide ; Niederschlag ; Roggen ; Temperatur ; Weizen ; Sonnenscheindauer ; Gerste
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  • 12
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    In:  Kühn-Archiv, Berlin, Band XX, Seite 223-301
    Publication Date: 1928
    Description: Auswertung von 27 Versuchsjahren, Bestimmung einer kritischen Periode für die Mindestniederschlagshöhe durch Auswertung der Klimaparmeter in einzelnen Bezirken mittels Rangkorrelationskoeffizienten KATASTER-BESCHREIBUNG: Zusammenhang zwischen der Niederschlagshöhe und dem Ertrag von Zuckerrüben, Zusammenhang zwischen der Sonnenscheindauer und dem Zuckergehalt von Zuckerrüben KATASTER-DETAIL: Delta Nied+: Nied 〉 175 mm (Juli-September), dann Ertragssteigerung bei ZR; Delta Sonn +: Sonn〉 4.43 h (September -Oktober), dann hohe Zuckergehalte bei ZR
    Keywords: Sachsen-Anhalt ; 1900-1926 ; Zuckerrüben ; Niederschlag ; Rangordnungsmethode ; Temperatur ; Witterung
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  • 13
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    In:  Vol. Band 2, No. 3, pp. 1-95-137.
    Publication Date: 1928
    Description: Einfluss der Temperatur, des Niederschlags, des Lichtes, Windes, Donner und Hagel auf das Pflanzenleben und Wachstum KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Niederschlag ; Temperatur ; Wachstum ; Sonnenscheindauer
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  • 14
    Publication Date: 1928
    Description: Versuche auf 13 Versuchsstationen, Einfluss des Wetters auf die Entwicklung, den etwaigen Krankheitsbefall, den Knollenertrag und den Stärkegehalt KATASTER-BESCHREIBUNG: Temperaturen während des Aufgangs für die Dauer des Aufgangs entscheidend, Verzögerung der Blüte bei nasser und kalter Witterung, insbesondere bei den frühen Sorten, Sonnenscheindauer für den Stärkegehalt entscheidend KATASTER-DETAIL: Delta T+ (〉5°C während des Aufgangs), dann Aufgang innerhalb von 3 Wochen, ansonsten bis 5.5 Wochen;
    Keywords: Deutschland, Versuchsstationen ; 1924-26 ; Kartoffeln ; Ertrag ; Niederschlag ; Temperatur ; Sonnenscheindauer
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  • 15
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    In:  Deut. Landwirtschaflt. Presse 55:94-95.
    Publication Date: 1928
    Description: Übersicht über die Literatur zum Einfluss des Wetters auf die Kulturpflanzen KATASTER-BESCHREIBUNG: Milder und trockener Winter wirkt positiv auf die Weizenerträge, kalter und niederschlagsreicher Winter eher negativ, Betrachung für Norddeutschland KATASTER-DETAIL:
    Keywords: Deutschland ; 1900-1926 ; Kartoffeln ; Ertrag ; Getreide ; Hafer ; Landwirtschaft ; Niederschlag ; Roggen ; Temperatur ; Trockenheit ; Witterung ; Gerste
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  • 16
    Publication Date: 1928
    Description: Ergebnisse 5-jähriger Freilandversuche und 9-jähriger Laborversuche zu den Zusammenhängen zwischen klimatischen und anderen Umweltfaktoren und dem Auftreten verschiedener physiologischer Formen des Schwarzrostes an unterschiedlichen Weizensorten in den USA und Kanada. KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: USA, Kanada ; 1919-1923 ; Getreide ; Pflanzenkrankheit ; Weizen
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  • 17
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    In:  Nature 122:258.
    Publication Date: 1928
    Description: Berechnung partieller Korrelationskoeffizienten zwischen Temperatur, Niederschlag, Sonnenschein und Feuchte, in einzelnen Monaten KATASTER-BESCHREIBUNG: Erträge sind abhängig von Temperatur, Sonnenscheindauer, Niederschlag und Feuchte in der Zeit von April bis Juli in Norddakota und von April bis September in Ohio KATASTER-DETAIL:
    Keywords: Norddakota und Ohio ; 1920? ; Ertrag ; Korrelationsmethode ; Niederschlag ; Temperatur ; Globalstrahlung
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  • 18
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    In:  Landw. Wochenschrift für die Provinz Sachsen und Anhalt, Hallle 18:428ff.
    Publication Date: 1928
    Description: Zusammenhang Witterung in Monaten und Gerstenertrag KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Sachsen und Anhalt ; 1920 ; Ertrag ; Getreide ; Landwirtschaft ; Niederschlag ; Temperatur ; Witterung
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  • 19
    Publication Date: 1928
    Description: Beziehung zwischen Witterung (unterteilt in einzelne Monate) und Ertragshöhe mithilfe der Rangordnungs- und der Korrelationsmethode KATASTER-BESCHREIBUNG: Einfluss der Witterung (Temperatur, Niederschlag, Sonnenscheindauer) auf den Ertrag von Winterweizen, Sommerweizen, Sommergerste, Wintergerste, Hafer und Runkelrüben auf dem Versuchsfeld (wasserundurchlässiger Boden) KATASTER-DETAIL: Delta Sonn (Oktober bis November)+, dann Erträge (Winterweizen) +; Delta Sonn (Dezember bis März)+, dann Erträge (Winterweizen) -; Delta Sonn (April) -, dann Erträge (Winterweizen) +; Delta Nied (April) +, dann Erträge (Winterweizen) +; Delta Nied (Mai, Juni und Juli) -, dann Erträge (Winterweizen) +; Delta Nied (August bis Oktober) +, dann Erträge (Winterweizen) +; Delta T (April) -, dann Erträge (Winterweizen) +; (Details sowie Informationen für Sommerweizen, Sommergerste, Wintergerste, Hafer und Runkelrüben siehe Artikel)
    Keywords: Hohenheim (Baden-Württemberg) ; 1914-25 ; Ertrag ; Getreide ; Hafer ; Klima ; Korrelationsmethode ; Niederschlag ; Rangordnungsmethode ; Temperatur ; Weizen ; Witterung ; Hackfrüchte
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  • 20
    Publication Date: 1928
    Description: Einfluss der Wasserversorgung in verschiedenen Wachstumsstadien auf die Entwicklung und die Ertragsfähigkeit der Sommerweizensorte 'Ulca' KATASTER-BESCHREIBUNG: Wasserstress hat in allen Vegetationsstadien ertragsrelevante Folgen KATASTER-DETAIL:
    Keywords: Labor ; 1926-27 ; Ertrag ; Wassermangel ; Weizen
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  • 21
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    Vieweg
    In:  Professional Paper, Müller - Pouillets Lehrbuch der Physik, Bd. 5.1 Physik der Erde, Braunschweig, Vieweg, vol. 3, no. VIIa, pp. 725-736, (ISBN: 3-540-23712-7)
    Publication Date: 1928
    Keywords: Seismology ; Fluids ; Geothermics
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  • 22
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    Vieweg
    In:  Professional Paper, Müller - Pouillets Lehrbuch der Physik, Bd. 5.1 Physik der Erde, Braunschweig, Vieweg, vol. 3, no. VIIa, pp. 808-818, (ISBN: 3-540-23712-7)
    Publication Date: 1928
    Keywords: Seismology ; Geothermics ; Velocity analysis ; Earth model, also for more shallow analyses ! ; Physical properties of rocks
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  • 23
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    Institut für Meteorologie und Geophysik
    In:  Frankfurt, Institut für Meteorologie und Geophysik, vol. 12, 189 S., no. Subvol. b, pp. 220, (ISBN 0-12-305355-2)
    Publication Date: 1928
    Keywords: Seismology ; Travel time
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  • 24
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    Vieweg
    In:  Professional Paper, Müller - Pouillets Lehrbuch der Physik, Bd. 5.1 Physik der Erde, Braunschweig, Vieweg, vol. 3, no. VIIa, pp. 737-790, (ISBN: 3-540-23712-7)
    Publication Date: 1928
    Keywords: Seismology ; Fluids ; Geothermics
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  • 25
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    Vieweg
    In:  Professional Paper, Müller - Pouillets Lehrbuch der Physik, Bd. 5.1 Physik der Erde, Braunschweig, Vieweg, vol. 3, no. VIIa, pp. 719-725, (ISBN: 3-540-23712-7)
    Publication Date: 1928
    Keywords: Earth tides ; Seismology ; Fluids ; Geothermics
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  • 26
    Publication Date: 2019-06-27
    Description: The mechanics of laminar boundary layer transition are reviewed. Drag possibilities for boundary layer control are analyzed using assumed conditions of transition Reynolds number, inlet loss, number of slots, blower efficiency, and duct losses. Although the results of such analysis are highly favorable, those obtained by experimental investigations yield conflicting results, showing only small gains, and sometimes losses. Reduction of this data indicates that there is a lower limit to the quantity of air which must be removed at the slot in order to stabilize the laminar flow. The removal of insufficient air permits transition to occur while the removal of excessive amounts of air results in high power costs, with a net drag increases. With the estimated value of flow coefficient and duct losses equal to half the dynamic pressure, drag reductions of 50% may be obtained; with twice this flow coefficient, the drag saving is reduced to 25%.
    Keywords: AERODYNAMICS
    Type: NASA-CR-145337 , D-7625
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  • 27
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    In:  CASI
    Publication Date: 2019-08-16
    Description: The investigation of the flow in a centrifugal pump indicated that the flow patterns in frictional fluid are fundamentally different from those in frictionless fluid. In particular, the dead air space adhering to the section side undoubtedly causes a reduction of the theoretically possible delivery head. The velocity distribution over a parallel circle is also subjected to a noticeable change as a result of the incomplete filling of the passages. The relative velocity on the pressure side of the vane, which for passages completely filled with active flow would differ little from zero even at comparatively lower than normal delivery volume, is increased, so that no rapid reverse flow occurs on the pressure side of the vane even for smaller delivery volume. It was established, further, that the flow ceases to be stationary for very small quantities of water. The inflow to the impeller can be regarded as radial for the operating range an question. The velocity triangles at the exit are subjected to a significant alteration in shape ae a result of the increased peripheral velocity, which may be of particular importance in the determination of the guide vane entrance angle.
    Keywords: Fluid Mechanics and Thermodynamics
    Type: NACA-TM-1089 , Mitteilungen des Hydraulischen Instituts der Technischen Hochschule; 4; 1-27
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  • 28
    Publication Date: 2019-07-12
    Description: The heat losses from the envelope surface of a U.S. Navy K-type airship are evaluated to determine if the use of heat is a feasible means of preventing ice and snow accumulations on lighter-than-air craft during flight and when moored uncovered. Consideration is given to heat losses in clear air (no liquid water present in the atmosphere) and in probable conditions of icing and snow. The results of the analysis indicate that the amount of heat required in flight to raise the surface temperature of the entire envelope to the extent considered adequate for ice protection, based on experience with tests of heavier-than-air craft, is very large. Existing types of heating equipment which could be used to supply this quantity of heat would probably be too bulky and heavy to provide a practical flight installation. The heat requirements to provide protection for the nose and stern regions in assumed mild to moderate icing conditions appear to be within the range of the capacity of current types of heating equipment suitable for flight use. The amount of heat necessary to prevent snow accumulations on the upper surface of the airship envelope when moored uncovered under all conditions appear to be excessive for the heating equipment presently available for flight use, but could possibly be achieved with auxiliary ground heating equipment.
    Keywords: Fluid Mechanics and Thermodynamics
    Type: NACA-RM-SA6L20
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  • 29
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    In:  CASI
    Publication Date: 2019-07-13
    Description: With water as driving medium and delivered medium in a device similar to a simple jet apparatus, the pressure and velocity fields of the mixing zone were explored with a pitot bar; the ratio of delivered to driving volume ranged between the values 0, 1, 2, and 4. An attempt was also made to analyze the mixing flow mathematically by integration of the equation of motion, with the aid of conventional formulas for the turbulent shearing stress, but this succeeded only approximately for the very simplified case that a driving jet is introduced in an unlimited parallel flow, while the pressure over the whole mixing field is assumed to be constant. In spite of these dissimilar assumptions for the theory and the experiment, the form of the measured and the computed velocity profiles indicates a very high degree of approximation. The pressure rise, which was approximated by Flugel's formulas, disclosed good agreement with the measured values.
    Keywords: Fluid Mechanics and Thermodynamics
    Type: NACA-TM-1096 , Forschung auf dem Gebiete des Ingenieurwesens; 12; 1; 16-30
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  • 30
    Publication Date: 2019-07-13
    Description: On the basis of photographic pictures the laminar flow at a pipe inlet was measured and compared with other measurements and computational results. The test setup is described in detail, and a series of the pictures obtained for turbulent flow is given.
    Keywords: Fluid Mechanics and Thermodynamics
    Type: NACA-TM-1109 , Forschung auf dem Gebiete des Ingenieurwesens; 8; Pt 1; 42-47
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