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  • 01. Atmosphere::01.01. Atmosphere::01.01.08. Instruments and techniques  (2)
  • 05. General::05.07. Space and Planetary sciences::05.07.02. Space weather  (1)
  • American Institute of Physics  (2)
  • AGU and the Geochemical Society  (1)
  • American Chemical Society
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  • 1
    Publikationsdatum: 2017-04-04
    Beschreibung: COST (Co-operation in the field of Scientific and Technical Research) is an important instrument supporting co-operation among scientists and researchers across Europe now joining 35 member countries. Scientific projects in the COST framework are called COST Actions and have the objectives embodied in their respective Memorandum of Understanding (MoU). The main objectives of the COST Actions within the European ionospheric and radio propagation community have been: to study the influence of upper atmospheric conditions on terrestrial and Earthspace communications, to develop methods and techniques to improve existing and generate new ionospheric and propagation models over Europe for telecommunication and navigation applications and to transfer the results to the appropriate national and international organizations, institutions and industry dealing with the modern communication systems. This paper summarises in brief the background and historical context of four ionospheric COST Actions and outlines their main objectives and results. In addition, the paper discusses the dissemination of the results and the collaboration among the participating institutions and researchers.
    Beschreibung: DRS Codem Systems Ball Aerospace Corporation University of Massachusetts Lowell
    Beschreibung: Published
    Beschreibung: Lowell, Massachusetts, U.S.A., April 29, 2007
    Beschreibung: 3.9. Fisica della magnetosfera, ionosfera e meteorologia spaziale
    Beschreibung: open
    Schlagwort(e): Physics of the Ionosphere ; 01. Atmosphere::01.02. Ionosphere::01.02.99. General or miscellaneous ; 05. General::05.07. Space and Planetary sciences::05.07.02. Space weather
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: Conference paper
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2017-04-04
    Beschreibung: “An edited version of this paper was published by AGU. Copyright (2009) American Geophysical Union.”
    Beschreibung: The properties of polymeric membranes and measurements of gas concentrations are common elements of industrial processes and scientific research. Here we report a methodology whereby pressure measurements inside a closed polymeric membrane tube can be quantitatively related to the composition of the external gas. This approach is founded on the different rates at which the gases permeate into and out of the interior of the polymeric tube. The difference between the amounts of gas entering and leaving the tube triggers a pressure transient. The features of this transient depend on the species of the involved gases and their partial pressures and under certain conditions, allow the concentration of one or more species to be estimated. We outline the theoretical principles behind the proposed methodology and conduct laboratory tests on a device that could be adaptable to continuous measurements of CO2 partial pressure in field applications.
    Beschreibung: Published
    Beschreibung: Q11005
    Beschreibung: 1.2. TTC - Sorveglianza geochimica delle aree vulcaniche attive
    Beschreibung: JCR Journal
    Beschreibung: open
    Schlagwort(e): gas concentration measurements ; polymeric membranes ; continuous monitoring ; carbon dioxide ; 01. Atmosphere::01.01. Atmosphere::01.01.08. Instruments and techniques ; 04. Solid Earth::04.04. Geology::04.04.12. Fluid Geochemistry ; 04. Solid Earth::04.08. Volcanology::04.08.01. Gases ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Unbekannt
    American Institute of Physics
    Publikationsdatum: 2020-02-24
    Beschreibung: A high-resolution Fabry–Perot interferometer was inserted in a feedback loop which, by monitoring elements of the fringe pattern, keeps the position of the transmitting window fixed with respect to a given line, taking into account the instability of the radiation source which would produce a wander of the line itself and the noise affecting the tuning of the receiving interferometer. The system, in this preliminary form, is able to lock itself and maintain its position indefinitely for slow and moderately fast varying disturbances.
    Beschreibung: Published
    Beschreibung: 2940-2944
    Beschreibung: 1.7. Osservazioni di alta e media atmosfera
    Beschreibung: JCR Journal
    Beschreibung: reserved
    Schlagwort(e): FABRY-PEROT ; INTERFEROMETER ; SERVOMECHANISMS ; FEEDBACK ; 01. Atmosphere::01.01. Atmosphere::01.01.08. Instruments and techniques
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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