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  • Chemistry  (4)
  • thema EDItEUR::3 Time period qualifiers::3K CE period up to c 1500  (3)
  • Stromboli  (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: 2020-06-25
    Description: Two paroxysmal explosions occurred at Stromboli volcano in the Summer 2019, the first of which, on July 3, caused one fatality and some injuries. Within the 56 days between the two paroxysmal explosions, effusive activity from vents located in the summit area of the volcano occurred. No significant changes in routinely monitored parameters were detected before the paroxysmal explosions. However, we have calculated the polarization and the fractal dimension time series of the seismic signals from November 15, 2018 to September 15, 2019 and we have recognized variations that preceded the paroxysmal activity. In addition, we have defined a new parameter, based on RSAM estimation, related to the Very Long Period events, called VLP size, by means of which we have noticed significant variations through the whole month preceding the paroxysm of July 3. In the short term, we have analyzed the signals of a borehole strainmeter installed on the island, obtaining automatic triggers 10 minutes and 7.5 minutes before the July 3 and the August 28 paroxysms, respectively. The results of this study highlight mid-term seismic precursors of paroxysmal activity and provide valuable evidence for the development of an early warning system for paroxysmal explosions based on strainmeter measurements
    Description: This work benefited from funds of the EU (DG ECHO) Project EVE n. 826292 and was partially supported by the project INGV-FISR-2017 “Sale Operative Integrate e Reti di Monitoraggio del Futuro: l’INGV 2.0”. The data used in this study were provided by the Istituto Nazionale di Geofisica e Vulcanologia (Osservatorio Vesuviano, Osservatorio Etneo). The authors are also grateful to the Italian Presidenza del Consiglio dei Ministri- Dipartimento della Protezione Civile (DPC) for supporting the monitoring activities at Stromboli.
    Description: Published
    Description: 10296
    Description: 6V. Pericolosità vulcanica e contributi alla stima del rischio
    Description: JCR Journal
    Keywords: Stromboli ; volcano ; precursors ; early warning ; seismic precursor
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 6
    Publication Date: 2019-01-24
    Description: The advent of UV cameras has recently paved the way to volcanic SO2 flux observations of much improved temporal and spatial resolution, and has thus contributed to expanding use and utility of SO2 fluxes in volcano monitoring. Recently, the first examples of permanent UV camera systems have appeared that are now opening the way to routine fully automated monitoring of the volcanic SO2 flux at high-rate, and continuously (daily hours only). In 2014, using funding from the FP7-ERC project “Bridge” (http://www.bridge.unipa.it/), we deployed a network of 4 permanent UV cameras at Etna and Stromboli volcanoes (Sicily) that has been operating regularly since then. Using a suite of custom-built codes, data streamed by the UV camera are automatically processed and telemetered, allowing nearly real-time visualization and analysis of SO2 fluxes. Here, we summarise the key results obtained during the last 5 years of continuous observations (2014-2018) to demonstrate potentials and challenges in real-time continuous SO2 flux monitoring with UV cameras. We show that the spatially resolved SO2 flux time-series delivered by the UV camera allow effectively tracking migration in volcanic activity from the Central to New South-East Crater (Etna), and shifts in degassing activity along the crater terrace (Stromboli). At both volcanoes, the high temporal of UV cameras allows capturing the escalation in active (strombolian) SO2 degassing that typically precedes onset of paroxysmal (Etna in 2014-2016) or effusive (Stromboli in 2014) activity, and to quantify for the first time the syn- explosive SO2 budget for larger-scale explosions, including 2 paroxysmal lava fountains (Etna) and 1 major explosion (Stromboli). We finally demonstrate the ability of our automatic camera systems to capture temporal changes in SO2 flux regime, and thus to “live” monitoring degassing and eruptive behaviors at active volcanoes.
    Description: Published
    Description: Napoli
    Description: 6V. Pericolosità vulcanica e contributi alla stima del rischio
    Keywords: UV Camera ; SO2 Flux Monitoring ; Etna ; Stromboli
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Conference paper
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  • 7
    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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  • 8
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    Firenze University Press
    Publication Date: 2024-04-01
    Description: This book is a collection of contributions by the Italian scholarship fellows at the Deutsches Historisches Institut of Rome over the last decade. It is intended as a tribute to one of the leading mediaevalists at international level, a scrupulous and sensitive scholar of Italian history. Over and above all this, it is a sign of gratitude from the young academics who have been able to consolidate their research thanks to such scholarships. Consequently the 14 contributions that make up the book do not share the academic orientation of any particular school, but range over various research sectors and different chronological periods.
    Description: Il volume, che raccoglie i contributi di ex borsisti italiani dell'ultimo decennio del Deutsches Historisches Institut di Roma, vuole essere un omaggio a uno dei medievisti più noti a livello internazionale e all'attento e sensibile studioso della storia italiana, ma soprattutto un segno di gratitudine di giovani studiosi che con tale borsa hanno potuto consolidare i loro percorsi di ricerca. I 14 contributi che lo compongono non sono quindi accomunati da un comune orientamento formativo di scuola, ma spaziano fra diversi settori di ricerca e differenti ambiti cronologici.
    Keywords: deutsches historisches institut ; arnold esch ; thema EDItEUR::N History and Archaeology ; thema EDItEUR::3 Time period qualifiers::3K CE period up to c 1500
    Language: Italian
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  • 9
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    Firenze University Press
    Publication Date: 2024-04-01
    Description: Il volume, che raccoglie i contributi di ex borsisti italiani dell'ultimo decennio del Deutsches Historisches Institut di Roma, vuole essere un omaggio a uno dei medievisti più noti a livello internazionale e all'attento e sensibile studioso della storia italiana, ma soprattutto un segno di gratitudine di giovani studiosi che con tale borsa hanno potuto consolidare i loro percorsi di ricerca. I 14 contributi che lo compongono non sono quindi accomunati da un comune orientamento formativo di scuola, ma spaziano fra diversi settori di ricerca e differenti ambiti cronologici.
    Keywords: D111-203 ; Open Access ; Saggi ; Storia ; Medioevo ; thema EDItEUR::N History and Archaeology ; thema EDItEUR::3 Time period qualifiers::3K CE period up to c 1500
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  • 10
    Publication Date: 2024-04-01
    Description: The book focuses on the particular historical-political context of the Kingdom of Naples in the Aragonese period (1442-1503), and explores the variety of languages related to political practice: juridical, literary, artistic, political languages are analyzed in their specificities, but also in their reciprocal osmotic relations. This volume offers a conclusive reflection after a conference organized in Naples, and integrates interdisciplinary perspectives. It tests and refines the hypothesis concerning the gradual development of a complex organism that – through literature, oratory, political treatises, artistic representations and administrative practices – goes in the direction of a “state system”, which still operates under the guidance of sovereignty.
    Keywords: D111-203 ; Italian Renaissance ; Crown of Aragon ; Italian Humanism ; Aragonese Kingdom of Neaples ; 15th Century ; thema EDItEUR::N History and Archaeology ; thema EDItEUR::3 Time period qualifiers::3K CE period up to c 1500
    Language: Italian
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