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  • Articles: DFG German National Licenses  (32)
  • 1
    Electronic Resource
    Electronic Resource
    Integration of vertical/quasivertical DMOS, CMOS and bipolar transistors in a 50 V SIMOX process
    Amsterdam : Elsevier
    Microelectronic Engineering 19 (1992), S. 733-735 
    Details
    ISSN: 0167-9317
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0167-9317(92)90533-W
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  • 2
    Electronic Resource
    Electronic Resource
    Höchstlamellarer Kohlenstoff aus Graphitoxyhydroxyd. (1948)
    Springer
    Monatshefte für Chemie 78 (1948), S. 222-242 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01141527
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  • 3
    Electronic Resource
    Electronic Resource
    Radiotelemetric assessment of diel cycles in euthermic body temperature and torpor in a free-ranging small mammal inhabiting man-made nest sites (1983)
    Springer
    Oecologia 60 (1983), S. 313-315 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Five free-ranging white-footed mice, peromyscus leucopus, known to inhabit man-made nest boxes were captured during winter, surgically-implanted with temperature-sensitive radiotelemeters, and released at the site of capture. The body temperatures of mice which voluntarily inhabited nest boxes were monitored from a remote location with an AM receiver on 17 days. All five mice were able to maintain stable euthermic body temperatures (approximately 35–37°C during the day; 37–39°C at night) during exposure to subfreezing ambient temperatures. Two body temperature profiles of daily torpor were obtained from one animal. On both occasions, the mouse entered torpor approximately 2 hours before sunrise, maintained a minimum body temperature of 18°C, and was fully aroused by 1500h. The influence of thermoregulation (during euthermia and torpor) on energy expenditure and survival in free-ranging mice is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00376844
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Bialgebraic contexts for finite distributive lattices (1996)
    Springer
    Algebra universalis 35 (1996), S. 151-165 
    Details
    ISSN: 1420-8911
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01190975
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    La voie d'abord interne de la diaphyse humérale Etude rétrospective de 40 observations (1993)
    Springer
    European journal of orthopaedic surgery & traumatology 3 (1993), S. 295-297 
    Details
    ISSN: 1432-1068
    Keywords: Humerus ; Approach ; Diaphyse humérale ; Voie d'abord interne
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé A la lumière de 40 observations d'ostéosynthèses de la diaphyse humérale par voie interne, les auteurs en présentent les difficultés et les complications. Il s'agissait de 30 fractures récentes, de 4 pseudarthroses et de 6 métastases. Sept complications neurologiques sont à mettre au passif de la voie d'abord, ainsi que 2 blessures peropératoires de l'artère humérale. Pour eux les indications de cette voie doivent être restrictives et se limiter aux fractures récentes du tiers inférieur sans paralysie radiale associée.
    Notes: Abstract The authors present the problems and complications of the medial approach to the humeral diaphysis. They treated 30 fresh fractures, 4 nonunions and 6 metastases by this route. There were 7 neurological complications and two injuries of the brachial artery. They conclude that the medial approach to the humeral diaphysis must be reserved for fractures of the lower third without a primary radial palsy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01803938
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  • 6
    Electronic Resource
    Electronic Resource
    Place de l'arthroplastie dans le traitement des métastases osseuses des membres (1994)
    Springer
    European journal of orthopaedic surgery & traumatology 4 (1994), S. 31-34 
    Details
    ISSN: 1432-1068
    Keywords: Arthroplasty ; Bone, metastases ; Arthroplastie ; Métastases osseuses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les arthroplasties représentent le tiers des 508 interventions pour métastases des membres réalisées dans notre service pendant 28 ans. Il s'agit le plus souvent d'arthroplasties de hanche et, en comparaison des autres méthodes utilisées auparavant, elles nous ont convaincu de leur supériorité : elles permettent d'enlever la masse tumorale, la douleur disparaît dans environ 3/4 des cas et leur immédiate solidité permet une récupération fonctionnelle rapide et de bonne qualité chez plus de 80 % des patients opérés. Les meilleurs résultats sont obtenus avec la mégaprothèse de hanche qui donne, dans la cadre de cette chirurgie de confort, le plus l'illusion de la guérison totale.
    Notes: Abstract Arthroplasties represent one third of the 508 operations done for bony metastases of the limbs in our department over a 28-year period. They are mainly proximal femoral and in comparison to former methods convince us of their superiority. They remove the tumour, 3 out of 4 patients obtained pain relief and the immediate fixation allows a rapid resumption of good quality function in more than 80% of patients. The best results are obtained with massive total hip prostheses which, within the context of such palliative surgery, gives the best illusion of total cure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01806729
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Aggregation and foraging behavior of whirligig beetles (Gyrinidae) (1980)
    Springer
    Behavioral ecology and sociobiology 7 (1980), S. 179-186 
    Details
    ISSN: 1432-0762
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Whirligig beetles aggregate in the daytime into dense single-and multispecies groups (‘rafts’) of hundreds or thousands of individuals. On the 22km shoreline of Lake Itasca in northern Minnesota, these aggregations were on the average 0.8 km apart, and they were usually found day after day in the same ocations. Most beetles apparently do not ‘home’ to the aggregation of their origin after dispersing at night because (a) the species composition of some aggregations changed greatly, and (b) paint-marked beetles (Dineutus horni) moved overnight from one aggregation as far as 4km, joining 11 of the 14 large (〉300 beetles) D. horni groups on the lake. Throughout the night, the largest concentrations of beetles remained within 100m of the diurnal aggregation sites. Beetles reconvened into the compact rafts before daybreak, in part by following each other in sometimes long single files or ‘trains’. Their forward motion stopped after they joined large number of other beetles. We infer that following behavior enables those individuals that have dispersed from their original aggregations (during their nocturnal foraging) to find and join other aggregations before daylight. Naive fish ate the beetles despite their noxious secretions. However, fish living near rafting sites and feeding on insects on the water surface in daylight should soon learn to avoid the beetles. The rafting sites would then become ‘safe’ places. We observed fish attacking only those beetles that had been either dispersed from their rafts or released into open water away from raft sites in the daytime. We speculate that the evolutionary significance of the aggregation behavior is related to predator (fish) avoidance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00299362
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Einfluß der Behandlungsbedingungen auf die Thermostabilität eines NiPdNH4NaY-Zeoliths (1978)
    Springer
    Colloid & polymer science 256 (1978), S. 94-94 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01746756
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  • 9
    Electronic Resource
    Electronic Resource
    Isomerization of n-hexane over Pt/NH4NaY zeolite (1980)
    Springer
    Reaction kinetics and catalysis letters 13 (1980), S. 209-215 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Изомеризация н-гексана на Pt/NH4NaY описывается следующей реакционной схемой. Величины k1, k2 и kc линейно увеличиваются с увеличением степени обмена аммонийной группы в цеолите, а значительных изменений в селективности не наблюдалось. В течение активации Al частично удаляется из решетки с образованием HAlNaY.
    Notes: Abstract Isomerization of n-hexane over Pt/NH4NaY follows the reaction scheme k1, k2, kc linearly increase with increasing ammonia exchange degree in the zeolite and no significant changes in selectivity occur. During activation Al is partially removed from the lattice framework with the formation of HAlNaY.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02068568
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Einfluß von Sauerstoffzusätzen beim Gasnitrieren auf den strukturellen Aufbau von Nitrierschichten (1998)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 29 (1998), S. 588-594 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Influence of oxygen additions during gas nitriding on the structure of the nitrided layersThe influence of controlled oxygen additions during gas nitriding of steels on the structure and built-up of the nitrided layers as well as on the nitriding reactions was investigated with metallurgical methods and Mössbauer spectroscopy.The results show that oxygen additions below the oxidising threshold slightly improve the nitriding behaviour of unalloyed steels. Furthermore, it is shown that for alloyed steel, which are tending to passivation starting form chromium concentrations of 3%, the nitriding can be considerably improved by oxygen additions. The passivation layers present for these steels are destroyed by external oxidation during the oxinitriding process. This external oxidation and the internal nitriding occurred parallel in the early stages of the oxinitriding.
    Notes: Die Wirkung kontrollierter sauerstoffhaltiger Zusätze beim Gasnitrieren von Stählen auf den strukturellen Aufbau der Nitrierschichten und den Ablauf der Nitrierreaktion unter technischen Bedingungen wurde mit metallkundlichen Untersuchungsmethoden unter Einbeziehung der Mössbauer Spektroskopie verfolgt.Die Ergebnisse der durchgeführten Untersuchungen zeigen, daß Sauerstoffzusätze unterhalb der Oxidationsgrenze des reinen Eisens das Nitrierverhalten unlegierter Stähle etwas verbessern können. Weiter konnte gezeigt werden, daß bei legierten Stählen, die schon bei Chromgehalten ab 3% bei der konventionellen Gasnitrierung zur Passivierung neigen, die Nitrierung durch einen Sauerstoffzusatz erheblich verbessert werden kann. Die auf diesen Stählen vorhandenen Passivschichten werden beim Oxinitrieren durch eine äußere Oxidation zerstört. Diese äußere Oxidation und die innere Nitrierung laufen in der Anfangsphase des Oxinitrierens parallel ab.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19980291008
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