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  • 1
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 2
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    In:  EPIC3DESY Computing Seminar (DVSEM), DESY, Hamburg, 2011-01-31-2011-01-31
    Publication Date: 2015-05-28
    Description: A significant task during and after the execution of a scientific project is archiving the resulting datasets, which might serve as references for scientific papers and become the start point for undergoing related studies. This task demands a series of efforts not only from the data producer, who should deliver data along with a coherent description of its content and structure -- the so-called metadata--, but also from the data provider, who is responsible for its storage, transformation, distribution, and preservation in a consistent way. The researcher who produces the data plays an essential role in thissystem, like the autotrophs in the food chain, by feeding it with new information. But a complex description of the simulation scenarios and metadata profiles complicate the ingest activity, and he or she might become easily the bottleneck in the entire system. This presentation discusses the data management facilities adopted by C3Grid and addresses the innovative developments in the climate community to alleviate the metadata generation, extraction, and management such as Federico (Fedora Enabled Repository with Cocoon), a state-of-the-art AJAX frontend for the Fedora Commons Repository developed in the scope of the work package #3 of Wissgrid, Long Term Preservation of Research Archives.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 3
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    In:  EPIC3Erfolgskontrollbericht BMBF-Projekt FKZ 01|G09005F, 10 p.
    Publication Date: 2019-07-17
    Description: Project WissGrid was aimed at collecting experiences of five grid communities to support new communities in using grid technology. This included technical as well as structural and financial aspects. AWI engaged in all three work packages and contributed with its know-how in the operation of research platforms and the development of C3Grid. The discussions about a sustainable financial model of grid infrastructures resulted in the creation of a “Forum Kollaborative Forschungsumgebungen” (Collaborative Research Environments Forum). All the partners are willing to continue their work from WissGrid in this forum. The technical solutions of C3Grid were included in the blueprints of work package 2 which focuses on different aspects of grid environments and supports new communities to choose implementations meeting their specific requirements. The consulting activities of AWI and DKRZ for the community of climate impact research resulted in a close integration into C3Grid. Some components of C3Grid were modified, new workflows were implemented, and can now be employed by the users. The collaboration is still ongoing. Further consulting support was provided for the biodiversity/habitat research community. AWI developed tools for the long term archiving. They include a JHOVE module which can extract header information from files in widely used formats (netCDF, GRIB) and store them into an individually adaptable metadata profile. A similar module was developed for the astronomy which can process files in FITS format. AWI contributed to the general architecture for long term archives. In this document, Fedora is discussed as an option for repositories. We developed a frontend named Federico for a metadata repositoryin which users are supported in completing the metadata information for a specific profile. All developed software is freely available for all users in D-Grid.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Miscellaneous , notRev
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  • 4
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    In:  EPIC3JHOVE2 Tutorial -ipress 2010, Wien, 2010-09-19-2010-09-24
    Publication Date: 2019-07-17
    Description: Presentation of the NetCDF Format Module for JHOVE2 in the JHOVE2 Tutorial at ipress 2010, the 7th International Conference on Preservation of Digital Objects. This module has been developed at the Alfred Wegener Institute for Polar and Marine Research in the scope of the work package #3 - Long term preservation of research data - of Wissgrid, a project sponsored by the German Federal Ministry of Education and Research (BMBF).
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 5
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    In:  EPIC3AG Informationssysteme, Alfred Wegener Institute for Polar and Marine Research - Bremerhaven, 2011-11-29
    Publication Date: 2019-07-17
    Description: Federico (Fedora Enabled Repository with Cocoon) is a state-of-the-art XML Metadata Repository for the Collaborative Climate Community Data and Processing Grid C3GRID- developed at the Computer Center of the Alfred Wegener Institute in scope of the work package #3 of Wissgrid, The Long-Term Digital Preservation of Research Archives, and sponsored by the Federal Ministry of Education and Research (BMBF)-Germany. Its frontend integrates transparently to the Fedora Commons Repository and interacts in a friendly and intuitive manner with the end-user via a modern AJAX enabled user interface allowing him or her the upload, edition, validation, search, sharing, and publishing of metadata collections organized hierarchically in Sets for their subsequent harvesting. The J-A NetCDF Metadata Extractor (JANEME) based on Jhove2 supports in the task of metadata extraction from the header of NetCDF-3/4 and GRIB files and structure it accordingly for its successfully ingest in Fedora.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 6
    Publication Date: 2019-07-17
    Description: Federico (Fedora Enabled Repository with Cocoon) is a state-of-the-art XML Metadata Repository for the Collaborative Climate Community Data and Processing Grid C3GRID- developed at the Computer Center of the Alfred Wegener Institute in scope of the work package #3 of Wissgrid, The Long-Term Digital Preservation of Research Archives, and sponsored by the Federal Ministry of Education and Research (BMBF)-Germany.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 7
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    In:  EPIC3Presentation at the eScience Lab of Uni-Bremen, University of Bremen - eScience Lab, 2012-06-28-2012-06-28
    Publication Date: 2019-07-17
    Description: Federico (Fedora Enabled Repository with Cocoon) is a state-of-the-art XML Metadata Repository for the Collaborative Climate Community Data and Processing Grid C3GRID- developed at the Computer Center of the Alfred Wegener Institute in scope of the work package #3 of Wissgrid, The Long-Term Digital Preservation of Research Archives, and sponsored by the Federal Ministry of Education and Research (BMBF)-Germany. This presentation was held at the eScience Lab of the University of Bremen as a technical consulting to the Project QualiService, which is focused in the development of digital repositories.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 8
    Publication Date: 2011-06-21
    Print ISSN: 0948-7921
    Electronic ISSN: 1432-0487
    Topics: Electrical Engineering, Measurement and Control Technology
    Published by Springer
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  • 9
    Publication Date: 2020-07-03
    Description: This paper proposes a near to real-time local market to provide reactive power to the transmission system operator (TSO), using the resources connected to a distribution grid managed by a distribution system operator (DSO). The TSO publishes a requested reactive power profile at the TSO-DSO interface for each time-interval of the next delivery period, so that market agents (managing resources of the distribution grid) can prepare and send their bids accordingly. DSO resources are the first to be mobilized, and the remaining residual reactive power is supplied by the reactive power flexibility offered in the local reactive market. Complex bids (with non-curtailability conditions) are supported to provide flexible ways of bidding fewer flexible assets (such as capacitor banks). An alternating current (AC) optimal power flow (OPF) is used to clear the bids by maximizing the social welfare to supply the TSO required reactive power profile, subject to the DSO grid constraints. A rolling window mechanism allows a continuous dispatching of reactive power, and the possibility of adapting assigned schedules to real time constraints. A simplified TSO-DSO cost assignment of the flexible reactive power used is proposed to share for settlement purposes.
    Electronic ISSN: 1996-1073
    Topics: Energy, Environment Protection, Nuclear Power Engineering
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  • 10
    Publication Date: 2017-02-22
    Description: Langmuir DOI: 10.1021/acs.langmuir.6b04308
    Print ISSN: 0743-7463
    Electronic ISSN: 1520-5827
    Topics: Chemistry and Pharmacology
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