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  • Other Sources  (12)
  • 1985-1989  (7)
  • 1960-1964  (2)
  • 1955-1959  (2)
  • 1950-1954
  • 1930-1934
  • 1925-1929  (1)
  • 1
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    Der Einfluß der Temperatur auf Beginn und Verlauf des Apfelwicklerfluges (1956)
    In:  Arch. Gartenbau 4, Heft 4; p.277-278
    Details
    Publication Date: 1956
    Description: Auf der Basis von Messungen mit Apfelwicklerkontrollkästen wurden unter anderem anhand von Korrelationsanalysen der Einfluß der Temperatur auf das Schlüpfen des Apfelwicklers, sowie den Apfelwicklerflug untersucht. Als Ergebnis wird unter anderem eine Temperatursummenregel präsentiert. KATASTER-BESCHREIBUNG: Temperatursummenregel für den Massenflug der ersten Apfelwicklergeneration im Jahr. KATASTER-DETAIL: Mit dem Beginn des Massenfluges der ersten Generation ist zu rechnen, wenn ab einer Temperatursumme von 283°C (Basis 6°C) ab Huflattichblüte bzw. 136°C (Basis 8°C) ab Stachelbeerblüte niederschlags- und windarme Tage mit Tagesmitteltemperaturen 〉=15°C auftreten.
    Keywords: DDR ; 1953-1955 ; Apfel ; Pflanzenschädling ; Obst
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    BIBLIOGRAPHY INKA BB
  • 2
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    Die Maikäfer in Deutschland. Mitteilungen über Flugjahre und Entwicklungsdauer von Melolontha melolontha L. und Melolontha hippocastani F. (1925)
    In:  Arbeiten aus der biologischen Bunbdesanstalt für Land- und Forstwirtschaft 14, Heft 1; Parey, Springer, Berlin; p.1-76
    Details
    Publication Date: 1925
    Description: Detaillierte Auflistung des Maikäferauftretens verschiedener Jahre aus dem Zeitraum 1900-1920 aus ganz Deutschland in Bezirks- teilw. sogar Gemeindeauflösung wird gegeben. Der Einfluß der Temperatur in Form von 9°C Mitteltemperatur als Grenze für die Generationenanzahl der beiden Maikäferarten Melolontha melolontha L. und Melolontha hippocastani F. wird diskutiert. Eine Karte über die Generationsdauer der beiden Maikäferarten im deutschen Reich, teilweise auf Bezirksebene, ist enthalten. KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Deutschland ; 1855-1923 ; Forst ; Pflanzenschädling
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    BIBLIOGRAPHY INKA BB
  • 3
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    Der Einfluß der Temperatur auf Schlüpfzeitpunkt und Flugaktivität des Apfelwicklers (Carpocapsa pomonella L.) (1958)
    In:  Arch. Gartenbau 6, Heft 1; p.12-22
    Details
    Publication Date: 1958
    Description: Der Autor versucht den Massenflug der 1.Generation des Apfelwicklers und das Maximum des Apfelwicklerfluges weiterer Generationen durch eine Temperatursummenregel zu erklären. Hierbei wurden gute Ergebnisse erzielt. KATASTER-BESCHREIBUNG: Aufstellung einer Temperatursummenregel, durch die ein Termin ermittelt werden kann, ab dem, bei Eintreten weiterer Bedingungen, mit dem Massenflug der 1.Apfelwicklergeneration gerechnet werden muss KATASTER-DETAIL: Beginn des Massenfluges -〉 wenn ab Temperatursumme 283°C (Basis 6°C) ab Huflattichblüte bzw. Temperatursumme 136°C (Basis 8°C) ab Stachelbeerblüte relativ warme, nds.- und windschwache Tage mit Tagesmitteltemperaturen 〉 15°C auftreten (wobei mind. 12-14h 〉 15°C und 6-8h 〉 20°C herrschen müssen); Für weitere Apfelwicklergenerationen sind Perioden mit relativ warmen, nds.- und windschwachen Tage mit Tagesmitteltemperaturen 〉 15°C (wobei mind. 12-14h 〉 15°C und 6-8h 〉 20°C herrschen müssen) wichtig
    Keywords: DDR ; 1950-1955
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    BIBLIOGRAPHY INKA BB
  • 4
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    Flow in out-of-plane double S-bonds (1986)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Developing flows in two out-of-plane double S-bend configurations have been measured by laser-Doppler anemometry. The first duct had a rectangular cross-section 40mmx40mm at the inlet and consisted of a uniform area 22.5 deg. - 22.5 deg. S-duct upstream with a 22.5 deg.- 22.5 deg. S- diffuser downstream. The second duct had a circular cross-section and consisted of a 45 deg. - 45 deg. uniform area S-duct upstream with a 22.5 deg. -22.5 deg. S-diffuser downstream. In both configurations the ratio of the mean radius of curvature to the inlet hydraulic diameter was 7.0, the exit-to-inlet area ratio of the diffusers was 1.5 and the ducts were connected so that the centerline of the S-duct lay in a plane normal to that of the S-diffuser. Streamwise and cross-stream velocity components were measured in laminar flow for the rectangular duct and in turbulent flow for both configurations; measurements of the turbulence levels, cross-correlations and wall static pressures were also made in the turbulent flow cases. Secondary flows of the first kind are present in the first S-duct and they are complemented or counteracted by the secondary flows generated by the area expansion and by the curvature of the S-diffusers downstream. Cross-stream velocities with magnitudes up to 0.19 and 0.11 of the bulk velocity were measured in the laminar and turbulent flows respectively in the rectangular duct and six cross-flow vortices were evident at the exit of the duct in both flow cases. The turbulent flow in the circular duct was qualitatively similar to that in the rectangular configuration, but the cross-stream velocities measured at the exit plane were smaller in the circular geometry. The results are presented in sufficient detail and accuracy for the assessment of numerical calculation methods and are listed in tabular form for this purpose.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NASA-CR-176981 , NAS 1.26:176981 , FS/86/30
    Format: application/pdf
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  • 5
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    Optical spectra of radio galaxies (1964)
    In:  Other Sources
    Details
    Publication Date: 2019-01-01
    Description: Optical spectra and properties of radio galaxies
    Keywords: SPACE SCIENCES
    Format: text
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  • 6
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    Two-stage emitter follower is temperature stabilized (1964)
    In:  CASI
    Details
    Publication Date: 2019-05-11
    Description: Two-stage temperature stabilized circuit using two transistors is described. Increase in temperature causes the base-to-emitter voltage of n-p-n transistor to become less positive whereas the base-to-emitter voltage of p-n-p transistor becomes less negative, so the temperature-induced variation in V sub 1 and V sub 2 cancel out.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: MSC-20
    Format: application/pdf
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  • 7
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    Flow in out-of-plane double S-bends (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-07-27
    Description: An experimental investigation of developing flows through a combination of out-of-plane S-bend ducts was conducted to gain insight into the redirection of flow in geometries similar to those encountered in practical aircraft wing-root intake ducts. The present double S-bend was fabricated by placing previously investigated S-ducts and S-diffusers in series and with perpendicular planes of symmetry. Laser-Doppler anemometry was employed to measure the three components of mean velocity, the corresponding rms quantities, and Reynolds stresses in the rectangular cross-section ducts. Due to limited optical access, only two mean and rms velocity components were resolved in the circular cross-section ducts. The velocity measurements were complemented by wall static pressure measurements. The data indicates that the flows at the exit are complex and asymmetric. Secondary flows generated by the pressure field in the first S-duct are complemented or counteracted by the secondary flows produced by the area expansion and the curvature of the S-diffuser. The results indicate the dominance of the inlet conditions and geometry upon the development of secondary flows and demonstrate that the flows are predominantly pressure-controlled. The pressure distribution caused by the duct geometry determines the direction and magnitude of the bulk flow while the turbulence dictates the mixing characteristics and profiles in the near wall region.
    Keywords: AERODYNAMICS
    Type: Symposium on Turbulent Shear Flows; Sept. 7-9, 1987; Toulouse; France
    Format: text
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  • 8
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    High-resolution CCD imaging and derived gravitational lens models of 2237+0305 (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Images of the gravitational lens 2237+0305 acquired in good seeing have resolved the system into at least five components within the central few arsec of the object: the galaxy nucleus and four point sources in a ringlike formation approximately centered on the galaxy. It is found that the four point sources are distinctly bluer than the galaxy, but that they do not have identical colors. The observed configuration is well reproduced by a simple model that assumes that the four objects are images of the quasar and that the lens is a constant mass-to-light ratio, elliptical, de Vaucouleurs bulge.
    Keywords: ASTROPHYSICS
    Type: Astronomical Journal (ISSN 0004-6256); 95; 1619-162
    Format: text
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  • 9
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    Spectroscopy of the extranuclear line-emitting regions associated with the gravitational lens system 2016 + 112 (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Moderate-resolution slit spectroscopy of the extended emission-line objects A1 and B1 located within 5 arcsec of the triple radio source 2016 + 112 shows that at least one is physically associated with the z = 3.273 quasar thought to be multiply imaged by a foreground galaxy. The data and theoretical models unanimously favor the identification of A1 and B1 with two separate clouds of ionized gas that lie within a few kiloparsecs of the primary A/B QSO and radio source. The available evidence does not support the view that they are multiple images of a single object or their classification as separate (companion) galaxies.
    Keywords: ASTROPHYSICS
    Type: Astronomical Journal (ISSN 0004-6256); 94; 12-15
    Format: text
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  • 10
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    Optical observations of SN 1987D in UGC 7370 (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: This paper presents optical photometry and spectroscopy of SN 1987D, a Type Ia supernova in the nearby galaxy UGC 7370, during the period immediately subsequent to its discovery. The distance modulus of the galaxy, independently determined by the redshift and the Tully-Fisher (1977) relation, is 32.3 + or - 1.0. The maximum brightness of SN 1987D was V about 13.2 and occurred on April 18, 1987, + or - 4 days; the absolute luminosity is about 0.6 mag brighter than the average for SNe Ia. The spectrum of SN 1987D is typical of SNe Ia, but the expansion velocity (9600 km/s) is considerably lower than average.
    Keywords: ASTRONOMY
    Type: Astronomical Society of the Pacific, Publications (ISSN 0004-6280); 99; 1167-117
    Format: text
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