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  • Articles: DFG German National Licenses  (11)
  • 1980-1984  (3)
  • 1975-1979  (4)
  • 1960-1964  (4)
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  • Articles: DFG German National Licenses  (11)
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Years
Year
  • 1
    facet.materialart.
    Unknown
    Köln : Periodicals Archive Online (PAO)
    Zeitschrift für Religions- und Geistesgeschichte. 29 (1977) 164 
    ISSN: 0044-3441
    Topics: History , Philosophy , Theology and Religious Studies
    Notes: MISZELLEN
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  • 2
    facet.materialart.
    Unknown
    Leiden, etc. : Periodicals Archive Online (PAO)
    Mnemosyne. ser.4:14:4 (1961) 316 
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  • 3
    Electronic Resource
    Electronic Resource
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 36 (1980), S. 966-974 
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: It has been observed that the reflectivity of the (110) planes of a quartz lamina can be increased by submitting it to a static or alternating electric field. Measurements have been performed on 2.5 and 6 mm thick plates using a curved-crystal spectrometer with DuMond geometry. Photon energies were in the range 50 to 300 keV. Under the proper conditions, the increase in reflectivity is accompanied by negligible loss in resolution. The effects are explained by the occurrence of a quasi-mosaicity.
    Type of Medium: Electronic Resource
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  • 4
    facet.materialart.
    Unknown
    Leiden, etc. : Periodicals Archive Online (PAO)
    Mnemosyne. ser.4:16:4 (1963) 400 
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Electrical engineering 57 (1975), S. 55-58 
    ISSN: 1432-0487
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Description / Table of Contents: 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.
    Notes: 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.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Heat and mass transfer 9 (1976), S. 267-272 
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: 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.
    Notes: 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.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Heat and mass transfer 13 (1980), S. 205-215 
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Zum Vergleich der Leistungsfähigkeit verschiedener Wärmeaustauscher liegt aus der Literatur eine Reihe von Bewertungskriterien vor. Sie beruhen im wesentlichen auf dem Verhältnis von erzielter Wärmeaustauschleistung zu der dafür erforderlichen hydraulischen Förderleistung. Die Anwendung dieser Kriterien wird beeinträchtigt durch nicht oder unklar formulierte Randbedingungen, die der Bewertung zugrunde liegen. Dies hat zu widersprüchlichen oder quantitativ zweifelhaften Ergebnissen geführt. Hier werden die Randbedingungen verschiedener Bewertungsverfahren gegenübergestellt, wobei die beiden Fragestellungen nach Flächenbedarf bei gleicher Wärme- und Förderleistung sowie Flächenbedarf und Förderleistung bei gleicher Wärmeleistung und Anströmfläche als die wichtigsten angesehen werden. Die erste Frage ist von Glaser bereits beantwortet worden, wird hier jedoch verallgemeinert dargestellt, die zweite Fragestellung ist neu; sie wird mit Hilfe geeigneter Kenngrößen und für einige bekannte Austauschsysteme behandelt.
    Notes: Abstract A number of criteria have been developed which evaluate heat exchangers on the basis of exchange rate and pumping power. Appreciation of these criteria suffers from a poor discussion of the conditions for which the evaluation holds. Consequently there have been contradictory results when different procedures were applied. A thorough discussion of the various boundary conditions reveals that two most important questions for crossflow air-cooled heat exchangers are (i) exchange area requirement at constant heat transfer rate and pumping power and (ii) exchange area and pumping power requirement at constant heat transfer rate and frontal area. The first question can be answered by generalizing the evaluation procedure of Glaser, the second problem is dealt with on the basis of redefined heat transfer and pressure drop characteristics.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    European archives of psychiatry and clinical neuroscience 224 (1977), S. 49-60 
    ISSN: 1433-8491
    Keywords: Cushing's syndrome ; Endocrine psychosyndrome ; Adrenalectomy ; Results of therapy ; Long-term prognosis ; Cushing-Syndrom ; Endokrines Psychosyndrom ; Adrenalektomie ; Therapieerfolg ; Spätprognose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung 12 Probanden (11 Frauen und 1 Mann) mit Cushing-Syndrom, die 1960/61 eingehend psychiatrisch untersucht worden sind, wurden im Jahre 1976 bezüglich psychischer Befunde nach der Behandlung des Cushing-Syndroms nachuntersucht. 10 Probanden wurden mit Adrenalektomie behandelt, 1 Probandin nur mit Radiotherapie der Hypophyse und 1 Probandin hat jede Behandlung verweigert. Die Beobachtungsdauer vom Zeitpunkt der Behandlung bis zur Nachuntersuchung oder bis zum Tod (5 Probanden) beträgt im Mittel 15 2/3 Jahre. Bei 7 Probanden gelang es, die überschießende Hormonproduktion der Nebennierenrinde zu beseitigen. Entsprechend war der weitere Verlauf günstig mit völliger Wiederherstellung der Arbeitsfähigkeit. Die Erscheinungen des endokrinen Psychosyndroms bildeten sich weitgehend zurück. Eine dauernde Veränderung der Persönlichkeit wurde nicht beobachtet und die vitale Abhängigkeit von der hormonalen Substitution wurde gut ertragen. Bei 4 von 5 Probanden mit ungünstigem Verlauf war es nicht gelungen, die Nebennierenrindenhormonproduktion zu normalisieren. Im Laufe weniger Jahre kam es zur Invalidität und Pflegebedürftigkeit. Es bildete sich ein mehr oder weniger deutliches organisches Psychosyndrom aus. Im Gegensatz zum Langzeitverlauf der Hypophysen-insuffizienz, wo unspezifische Persönlichkeitsfaktoren einen wichtigen Einfluß haben, hängt beim Cushing-Syndrom die Spätprognose ganz über-wiegend von der erfolgreichen Beseitigung der pathologischen Produktion von NNR-Hormonen ab. Die künstliche Substitution bedeutet in bezug auf das seelische Leben nicht notwendigerweise einen Nachteil.
    Notes: Summary Twelve patients with Cushing's syndrome (11 females, 1 male) who were examined for psychopathologic alterations in the course of the endocrine disease during the years 1960/61, were reexamined in 1976 regarding psychiatric sequelae after treatment. Ten patients had been treated by adrenalectomy, one patient by radiotherapy of the hypophysis, and one patient had refused any treatment. The average lapse of time from operation to reexamination or death (five patients) was 15 2/3 years. In seven patients it had been possible to stop completely the excessive production of adrenal hormones. Correspondingly the long-term result was favorable, with complete recovery of the ability to work. The previous symptoms of the endocrine psychosydrome disappeared almost completely. There was no permanent alteration of personality and the vital dependence on hormonal substitution was well tolerated. In four of the five patients with an unfavorable course of the disease it had not been possible to stop the excessive production of adrenal hormones. These patients became increasingly invalid and had to be cared for. Symptoms of chronic organic brain syndrome developed. In contrast to the course of panhypopituitarism where nonspecific personality factors are of considerable importance, in Cushing's syndrome the long-term prognosis depends entirely on the successful stoppage of the overproduction of adrenal hormones. The artificial substitution is not necessarily a disadvantage for the psychic functioning of the patient.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Aspects of the population biology of two harpacticoid copepod species [Zausodes arenicolus Wilson and Paradactylopodia brevicornis (Claus)] living in Tampa Bay, Florida, USA, were studied on time scales of hours to days during November 1983. Fluctuations in population agestructure, adult sex-ratio, and proportion of ovigerous females were determined for these two species in a control plot and in an experimental plot defaunated by raking. For both species, immigrants into the defaunated plot differed significantly from conspecifics in the control plot in all characteristics examined. The disturbed plot contained a larger proportion of young juveniles of both species compared to the unmanipulated site after 4 h but not after 8 h. In Z. arenicolus, adult males returned to the experimental plot more quickly than adult females. For both species, rapid and significant changes in population age-structure, adult sex-ratio, and the proportion of adult females with eggs occurred within the control plot. It is suggested that this variation was too large and occurred too rapidly to be accounted for solely by in situ processes in the absence of large-scale immigration and/or emigration of individuals. Potential implications of these results for population studies of harpacticoid copepods and other benthic invertebrates are discussed.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 308 (1964), S. 100-107 
    ISSN: 1435-2451
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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