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  • Other Sources  (14)
  • Deutschland  (7)
  • Seismicity  (4)
  • Structural Mechanics  (3)
  • 1945-1949  (14)
  • 1949  (14)
  • 1
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    California Institute of Technology Pasadena
    In:  Seismological Laboratory Bulletin, Milano, California Institute of Technology Pasadena, vol. 1948, no. 6, pp. 129, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1949
    Keywords: Earthquake catalog ; Seismology ; Seismicity
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  • 2
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    In:  Trans., Am. Geophys. Union, Milano, California Institute of Technology Pasadena, vol. 30, no. 6, pp. 595-597, pp. L24306, (ISBN: 0534351875, 2nd edition)
    Publication Date: 1949
    Keywords: Seismology ; Seismicity ; EOS
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  • 3
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    American Red Cross, 2 pp.
    In:  Princeton, New Jersey, 7 + 273 pp., 1. ed., American Red Cross, 2 pp., vol. 34, no. XVI:, pp. 385-389, (ISBN 0-12-305355-2)
    Publication Date: 1949
    Keywords: Seismology ; Seismicity ; Earthquake precursor: prediction research
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  • 4
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    In:  Zeitschrift für Tropenmedizin und Parasitologie 1, 31-91
    Publication Date: 1949
    Keywords: Deutschland ; 1945-1947 ; Umweltmedizin ; Infektionskrankheiten
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  • 5
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    In:  Dissertation, Erlangen
    Publication Date: 1949
    Keywords: Deutschland ; Umweltmedizin ; Infektionskrankheiten
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  • 6
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    In:  Neue Mitt. Landwirtsch. 4; p.130-132
    Publication Date: 1949
    Description: Der Autor beschreibt den Lebenszyklus der Frittfliege und dokumentiert das Auftreten des Schädlings in vergangenen Jahren. In einem sehr kurzen Absatz wird das Auftreten des schädlings mit warmem Frühlingswetter und der Sonnenscheindauer bzw. der Temperatur im Mai in Verbindung gebracht. KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Deutschland ; 1948 ; Getreide ; Pflanzenschädling ; Gerste
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  • 7
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    In:  Landwirtschaftliches Wochenblatt 139.Jahrgang, Nr.20; München; p.317 & 362
    Publication Date: 1949
    Description: Der Autor schließt aufgrund der Erfahrungen aus den Jahren 1947 und 1948 auf den Kartoffelkäferbefall 1949. Als klimatische Gründe für einen starken Befall 1949 sieht er die wohl große Zahl an Altkäfern aus dem Vorjahr, die nur schlecht bekämpft werden konnten und die schwachen Fröste im Winter an, die ein Überwintern für den Kartoffelkäfer erleichterten. KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Deutschland ; 1947-1949
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  • 8
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    In:  Schädlingsbekämpfung 41 Heft 3; p.6-8
    Publication Date: 1949
    Description: Der Autor gibt eine Literaturzusammenfassung über Effekte, die das Insektenleben beeinflussen und zeigt Methoden auf die Kardinalwerte (z.B. die Optimaltemperatur) für Insekten zu bestimmen (z.B. Temperatursummenregeln). Zu einigen Insekten werden beispielhaft Kardinalwerte genannt. KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Deutschland ; 1943-48
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  • 9
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    In:  Schädlingsbekämpfung 41; p.181-186
    Publication Date: 1949
    Description: Der Autor gibt eine allgemeine Übersicht über die Lebensbedingungen von Insekten und geht speziell auf den Gunstfaktor Temperatur ein. Eine ausführliche Übersicht über die Vorzugstemperaturen (Optimaltemperaturen) vieler Insekten wird gegeben. Zudem werden Anleitungen zur Bekämpfung dieser Insekten geliefert. KATASTER-BESCHREIBUNG: KATASTER-DETAIL:
    Keywords: Deutschland ; 1943-48
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  • 10
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    In:  Nachr. Bl. Biolog. Ztr.-Anst. Braunschweig, p.19
    Publication Date: 1949
    Description: Verbale Beschreibung des Massenauftretens 1948 sowie früheren Massenauftretens (1891, 1922, 1925, 1938 und 1939) KATASTER-BESCHREIBUNG: Zusammenhang zwischen Witterung (Temperatur und Luftfeuchte) und dem Massenauftreten des Käfers KATASTER-DETAIL: Delta T + (Sommer und Winter) und Delta Relf (Sommer) -, dann Massenauftreten im Folgejahr
    Keywords: Deutschland ; 1947-1948 ; Zuckerrüben ; Pflanzenschädling ; Temperatur ; Trockenheit ; Witterung ; Gemüse
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  • 11
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    Princeton Univ. Press
    In:  Princeton, New Jersey, 7 + 273 pp., 1. ed., Princeton Univ. Press, vol. 34, no. XVI:, pp. 385-389, (ISBN 0-12-305355-2)
    Publication Date: 1949
    Keywords: Seismology ; Seismicity ; Textbook of geophysics
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  • 12
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    In:  CASI
    Publication Date: 2019-08-16
    Description: Cylindrical shells of arbitrary section, reinforced by longitudinal and transverse members (stringers and ribs) are considered by us, for a sufficiently close spacing of the ribs, as in our previously published papers (references 1 end 2), as thin-walled orthotropic spatial systems at the cross-sections of which only axial (normal and shearing) forces can arise. The longitudinal bending and twisting moments, due to their weak effect on the stress state of the shell, are taken equal to zero. Along the longitudinal sections of the shell there may arise transverse forces in addition to the normal ~d shearing forces. Under the so-called static assumptions there is taken for the computation model of the shell a thin-walled spatial system consisting along its length (along a generator) of an infinite number of elementary strips capable of bending. Each of these strips is likened to a curved rod operating in each of its sections not only in tension (compression)but also in transverse bending and shear. The interaction between two adjoining transverse strips in the shell expresses itself in the transmission from one strip to the other of only the normal and shearing stresses. The static structure of the computation model here described is shown in figure 1, where the connections through which the normal and shearing stresses transmitted from one transverse strip to smother are indicated schematically by the rods located in the middle surface of the shell. In addition to the static hypothesis we introduce also geometric hypotheses. According to the latter the elongational deformations of the shell along lines parallel to the generator of its middle surface and the shear deformations in the middle surface, as ma+gitudes having . little effect on the state of the fundamental internal forces of the shell, are taken equal to zero. The deformations of the shell in our computational model are such that in the first place the lines of this surface perpendicular to the generator are inextensible at each point end in the second place the angles between the lines of principal curvature (the coordinate lines) which are straight before the deformation remain straight after the deformation.
    Keywords: Structural Mechanics
    Type: NACA/TM-1204
    Format: application/pdf
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  • 13
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    In:  CASI
    Publication Date: 2019-08-13
    Description: We consider a prismatic shell consisting of a finite number of narrow rectangular plates and having in the cross-section a finite number of closed contours (fig. 1(a)). We shall assume that the rectangular plates composing the shell are rigidly joined so that there is no motion of any kind of one plate relative to the others meeting at a given connecting line. The position of a point on the middle prismatic surface is considered to be defined by the coordinate z, the distance to a certain initial cross-section z = O, end the coordinate s determining its position on the contour of the cross-section.
    Keywords: Structural Mechanics
    Type: NACA/TM-1234 , Prikladnaya Matamatika i Mekhanika; 8; 5
    Format: application/pdf
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  • 14
    Publication Date: 2019-07-11
    Description: In the years after the First World war a very rapid development, which even today has by no means come to an end, took place in the field of welding; here also, as in most technical innovations, failures made their appearance. Thereupon comprehensive Investigations were undertaken by steel manufacturers and consumers with cooperation of the authorities. b most cases the reasons for failure could be determined and eliminated and further occurrences avoided by the use of new test methods.
    Keywords: Structural Mechanics
    Type: NACA-TM-1249 , Luftfahrtforschung, Lfg. 8/9; 231-241
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