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  • Chemistry  (4)
  • Z  (2)
  • 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics  (1)
  • Church of England, Sermons.
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 29 (1998), S. 609-617 
    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: Microstructural, mechanical and corrosive properties of friction stir welded aluminium jointsFriction stir welding (FSW) is a novel solid state welding process. It allows joining of high strength aluminum alloys, generally considered as difficult-to-weld with conventional technologies, without loss in joint strength. Results of investigations on selfmade FSW butt joints of the aluminum alloys 2024-T3 and 6013-T4 are presented. First, the microstructure of the weld seam and heat affected zone is characterised metallographically and by hardness measurements. By tensile, fatigue endurance (SN) and fatigue crack propagation tests it is demonstrated, that especially the FSW-joints of 2024-T3 sustain high mechanical loadings. Investigations on the corrosion properties reveal a certain sensitivity of the 2024-T3 joints to intergranular and exfoliation corrosion.
    Notes: Das Reibrührschweißen (friction stir welding FSW) ist ein neues Fügeverfahren, mit dem auch die schwer schmelzschweißbaren, höherfesten Aluminiumlegierungen ohne große Festigkeitsverluste verschweißt werden können. Erste Ergebnisse von Untersuchungen an selbst hergestellten FSW-Stumpfnähten der Aluminiumlegierungen 2024-T3 und 6013-T4 werden vorgestellt. Zunächst wird das Gefüge der Naht und der Wärmeeinflußzone mikrostrukturell und durch Härteverläufe charakterisiert. Weiterhin wird mit Zug-, Schwingfestigkeits- und Rißfortschrittsversuchen nachgewiesen, daß insbesondere die FSW-Nähte der Legierung 2024-T3 außerordentlich hohe mechanische Belastungen ertragen. Abschließende Korrosionsuntersuchungen der FSW-Nähte zeigen eine gewisse Anfälligkeit der abschreckempfindlichen Legierung 2024-T3 für interkristalline Korrosion und Schichtkorrosion.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 15 (1992), S. 71-74 
    ISSN: 0935-6304
    Keywords: On-line coupled LC-GC ; Loop-type interface ; Mixing in the sample loop ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: During introduction of an LC fraction into the sample loop of the loop-type interface mixing occurs between the fraction of interest and the material previously eluted from the LC. Such mixing may not only result in losses of the solute material of interest, but also in contamination of the fraction of interest with material from which it was supposed to have been isolated. Experimental determination of the extent of mixing has led to the conclusion that whereas the effects are negligible under some conditions, in some circumstances the mixing can cause severe problems.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 17 (1836), S. 191-192 
    ISSN: 0365-5490
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 20 (1836), S. 71-73 
    ISSN: 0365-5490
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 2022-08-25
    Description: We examine the tectonic evolution and structural characteristics of the Quaternary intermontane Mugello, Casentino, and Sansepolcro basins, in the Northern Apennines fold-andthrust belt. These basins have been classically interpreted to have developed under an extensional regime, and to mark the extension-compression transition. The results of our study have instead allowed framing the formation of these basins into a compressive setting tied to the activity of backthrust faults at their northeastern margin. Syndepositional activity of these structures is manifested by consistent architecture of sediments and outcrop-scale deformation. After this phase, the Mugello and Sansepolcro basins experienced a phase of normal faulting extending from the middle Pleistocene until Present. Basin evolution can be thus basically framed into a two-phase history, with extensional tectonics superposed onto compressional structures. Analysis of morphologic features has revealed the occurrence of fresh fault scarps and interaction of faulting with drainage systems, which have been interpreted as evidence for potential ongoing activity of normal faults. Extensional tectonics is also manifested by recent seismicity, and likely caused the strong historical earthquakes affecting the Mugello and Sansepolcro basins. Qualitative comparison of surface information with depth-converted seismic data suggests the basins to represent discrete subsiding areas within the seismic belt extending along the axial zone of the Apennines. The inferred chronology of deformation and the timing of activity of normal faults have an obvious impact on the elaboration of seismic hazard models.
    Description: Published
    Description: 336-356
    Description: 2T. Deformazione crostale attiva
    Description: JCR Journal
    Description: open
    Keywords: Northern Apennines ; Basin evolution ; structural analysis ; active tectonics ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 6
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    FedOA - Federico II University Press
    Publication Date: 2024-04-14
    Description: Roberto Pettorino was born in Naples on April 24, 1946. After graduating in Physics at the University of Naples Federico II in 1970, he later pursued research at Stanford's SLAC and Geneva's CERN. He was Full Professor of Theoretical Physics at the Faculty of Physical, Mathematical and Natural Sciences at Federico II University, Dean of the Faculty from 2007 to 2012, President of the University Assessment Team since October 2012. Since the first Open Archive was created by Paul Ginsparg in 1991 at the Los Alamos National Laboratory (LANL preprint archive, USA) for the elementary particle physics community, Roberto Pettorino was engaged in promoting Open Access. Since 2002, he had been delegated by the Rector of Naples Federico II for the libraries information services and member of the Scientific Technical Council of the Information Services Center; then he chaired the Permanent Commission for Libraries and Digital Resources. In 2002-2003 he promoted the development of the Digital Library of the University of Naples Federico II. Here are some contributions, collected to celebrate Roberto Pettorino's memory on April 8, 2013 when the Library Center was officially named after him.
    Keywords: Z ; Digital library ; thema EDItEUR::U Computing and Information Technology
    Format: application/octet-stream
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  • 7
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    FedOA - Federico II University Press
    Publication Date: 2024-04-14
    Description: This proceedings e-book contains papers presented at the national Symposium on “Electronic Books and the practices of scholarly research”, held in Naples, Italy, on 20 June 2003. The advent of new technologies, tools, and digital resources is changing how scholars conduct their work, keep updated in their field or fields of study, and think about research. Moving from the reconstruction of the market of scientific communication, copyright policies, and management of long-term conservation strategies, the published papers aim to discuss the ways in which scholarly practices have changed in the last decades, even since the end of the last century, in teaching and in research, in various disciplines like history, phisics and biomedical sciences.
    Keywords: Z ; ebooks ; publishing ; thema EDItEUR::U Computing and Information Technology
    Language: Italian
    Format: application/octet-stream
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  • 8
    Unknown
    Grand Rapids, Mich : Christian Classics Ethereal Library
    Keywords: Church of England, Sermons. ; Sermons, English.
    ISBN: 0-585-07463-1
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