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  • 1995-1999  (5)
  • 1975-1979  (4)
  • 1960-1964  (4)
  • 1
    facet.materialart.
    Unbekannt
    Leiden, etc. : Periodicals Archive Online (PAO)
    Mnemosyne. ser.4:14:4 (1961) 316 
    ISSN: 0026-7074
    Thema: Klassische Philologie, Byzantinistik, Mittellateinische und Neugriechische Philologie, Neulatein
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    facet.materialart.
    Unbekannt
    Leiden, etc. : Periodicals Archive Online (PAO)
    Mnemosyne. ser.4:16:4 (1963) 400 
    ISSN: 0026-7074
    Thema: Klassische Philologie, Byzantinistik, Mittellateinische und Neugriechische Philologie, Neulatein
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    facet.materialart.
    Unbekannt
    Köln : Periodicals Archive Online (PAO)
    Zeitschrift für Religions- und Geistesgeschichte. 29 (1977) 164 
    ISSN: 0044-3441
    Thema: Geschichte , Philosophie , Theologie und Religionswissenschaft
    Notizen: MISZELLEN
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Springer
    Electrical engineering 57 (1975), S. 55-58 
    ISSN: 1432-0487
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik
    Beschreibung / Inhaltsverzeichnis: Contents By cascading single stages velocity and power efficiency of the electric wind can be increased. Cascade velocity and power efficiency are calculated and results of cascade testing communicated.
    Notizen: Übersicht Durch Hintereinanderschaltung von Einzelstufen zu einer Kaskade läßt sich die Geschwindigkeit und der Wirkungsgrad des elektrischen Windes steigern. Kaskadengeschwindigkeit und Wirkungsgrad werden berechnet und experimentelle Ergebnisse an Kaskaden mitgeteilt.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Springer
    Applied physics 61 (1995), S. 335-337 
    ISSN: 1432-0630
    Schlagwort(e): 61.80 ; 78.70
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract The neutron-irradiation effects on C60 fullerite powder were studied by positron lifetime spectroscopy. Below 0.5 ns, a single lifetime of 382±1 ps was found for the unirradiated annealed sample and two components were resolved after neutron irradiation with a dose of 2×1016 n/cm2. Possible origins of these components are briefly discussed.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    Applied physics 61 (1995), S. 335-337 
    ISSN: 1432-0630
    Schlagwort(e): PACS61.80; 78.70
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract. The neutron-irradiation effects on C $_{60}$ fullerite powder were studied by positron lifetime spectroscopy. Below 0.5 ns, a single lifetime of $382\pm1$ ps was found for the unirradiated annealed sample and two components were resolved after neutron irradiation with a dose of $2\times 10^{16}$ n/cm $^2$ . Possible origins of these components are briefly discussed.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Heat and mass transfer 9 (1976), S. 267-272 
    ISSN: 1432-1181
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Wegen des grundsätzlich immer vorhandenen Wärmeaustausches mit der Umgebung ist der gewöhnliche Zweistoff-Wärmeaustauscher als Sonderform des Dreistoff-Wärmeaustauschers aufzufassen. In zahlreichen Situationen führt der Umgebungseinfluß zu merklich vergrößerten oder reduzierten Austauschflächen, je nach dem Zweck des Prozesses. Darüberhinaus läßt sich eine gewünschte Temperaturänderung unter gewissen Bedingungen überhaupt nicht mehr erreichen. Für einige typische Stromführungen werden diese Bedingungen hergeleitet; damit kann man direkt und ohne größeren Rechenaufwand feststellen, ob und für welche Parameterkombinationen ein angestrebter Austauschprozess realisierbar ist.
    Notizen: Abstract Strictly speaking, the common two-fluid heat exchanger is a special version of a three-fluid exchanger because the environment also participates in the energy exchange. In a number of situations this effect is significant and leads to either reduced or increased area requirements, depending on the purpose of the exchange operation. With certain combinations of the system parameters it is even impossible to achieve an envisaged temperature change. For some typical flow arrangements these combinations are established in an analytic form so that one can rapidly assess the feasibility of a desired process without actually performing the rather tedious design calculations.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    Microbial ecology 32 (1996), S. 47-57 
    ISSN: 1432-184X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract. Denitrification processes were measured by the acetylene-blockage technique under changing flood conditions along the aquatic/terrestrial transition zone on the Amazon floodplain at Lago Camaleão, near Manaus, Brazil. In flooded sediments, denitrification was recorded after the amendment with NO3 − (100 μmol liter−1) throughout the whole study period from August 1992 to February 1993. It ranged from 192.3 to 640.7 μmol N m−2 h−1 in the 0- to 5-cm sediment layer. Without substrate amendment, denitrification was detected only during low water in November and December 1992, when it occurred at a rate of up to 12.2 μmol N m−2 h−1. Higher rates of denitrification at an average rate of 73.3 μmol N m−2 h−1 were measured in sediments from the shallow lake basin that were exposed to air at low water. N2O evolution was never detected in flooded sediments, but in exposed sediments, it was detected at an average rate of 28.3 μmol N m−2 h−1 during the low-water period. The results indicate that under natural conditions there is denitrification and hence a loss in nitrogen from the Amazon floodplain to the atmosphere. Rates of denitrification in flooded sediments were one to two orders of magnitude smaller than in temperate regions. However, the nitrogen removal of exposed sediments exceeded that of undisturbed wetland soils of temperate regions, indicating a considerable impact of the flood pulse on the gaseous turnover of nitrogen in the Amazon floodplain.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Springer
    Microbial ecology 32 (1996), S. 47-57 
    ISSN: 1432-184X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Denitrification processes were measured by the acetylene-blockage technique under changing flood conditions along the aquatic/terrestrial transition zone on the Amazon floodplain at Lago Camaleão, near Manaus, Brazil. In flooded sediments, denitrification was recorded after the amendment with NO 3 − (100 μmol liter−1) throughout the whole study period from August 1992 to February 1993. It ranged from 192.3 to 640.7 μmol N m−2 h−1 in the 0- to 5-cm sediment layer. Without substrate amendment, denitrification was detected only during low water in November and December 1992, when it occurred at a rate of up to 12.2 μmol N m−2 h−1 Higher rates of denitrification at an average rate of 73.3 μmol N m−2 h−1 were measured in sediments from the shallow lake basin that were exposed to air at low water. N2O evolution was never detected in flooded sediments, but in exposed sediments, it was detected at an average rate of 28.3 μmol N m−2 h−1 during the low-water period. The results indicate that under natural conditions there is denitrification and hence a loss in nitrogen from the Amazon floodplain to the atmosphere. Rates of denitrification in flooded sediments were one to two orders of magnitude smaller than in temperate regions. However, the nitrogen removal of exposed sediments exceeded that of undisturbed wetland soils of temperate regions, indicating a considerable impact of the flood pulse on the gaseous turnover of nitrogen in the Amazon floodplain.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    Space science reviews 2 (1963), S. 136-171 
    ISSN: 1572-9672
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Knowledge of geomagnetism and its effects was recently much augmented during the IGY; when added to what is known of stellar fields, interplanetary fields, and meteoric magnetism, and combined with magnetic theory, this knowledge not only suggests that much may be learned of our neighbors in space by making an early determination of their magnetic fields, but also provides a foundation for many inferences and rough estimates on the magnetic fields of other solar-system bodies. Present estimates range from 660 cgs for Jupiter to 0.004 for the smaller satellites and the planetoids.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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