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  • MDPI - Multidisciplinary Digital Publishing Institute  (19)
  • GFZ Data Services  (4)
  • English  (23)
  • 1
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    XoveTIC 2019: The 2nd XoveTIC Conference (XoveTIC 2019) A Coruña, Spain, 5–6 September 2019 (2021)
    MDPI - Multidisciplinary Digital Publishing Institute
    Details
    Publication Date: 2023-12-20
    Description: This issue of Proceedings gathers papers presented at XOVETIC2019 (A Coruña, Spain, 5-6 September 2019), a conference with the main goal of bringing together young researchers working in big data, artificial intelligence, Internet of Things, HPC(High-performance computing), cybersecurity, bioinformatics, natural language processing, 5G and others areas from the field of ICT (Information Communications Technology), and offering a platform to present the results of their research to a national audience in Galicia and north of Portugal. This second edition aims to serve as the basis of this event, which will be consolidated over time and acquire international projection. The conference is co-funded by Xunta de Galicia and European Union. European Regional Development Fund (ERDF).
    Keywords: QA75.5-76.95 ; T58.5-58.64 ; High Performance Computing (HPC) ; Smart Systems ; movement localization and monitoring ; Big Data ; Recommendation systems ; Cybersecurity ; artificial vision ; Optimization ; data recovery ; Distributed systems ; Machine learning ; Applied Mathematics ; Artificial intelligence ; Bioinformatics ; Medical informatics ; Geographic information systems ; Statistics and Operative Investigation ; bic Book Industry Communication::U Computing & information technology::UY Computer science
    Language: English
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  • 2
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    IPOC Creep (2017)
    GFZ Data Services
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    Publication Date: 2020-02-12
    Language: English
    Type: info:eu-repo/semantics/workingPaper
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  • 3
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    Hypocentral temperatures, crustal seismogenic thickness and 3D thermal model of the South Caribbean and NW South America (2022)
    GFZ Data Services
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    Publication Date: 2023-01-17
    Description: This data repository contains the 3D steady-state thermal field computed for the South Caribbean and NW South America down to 75 km depth, the modelled hypocentral temperatures, the depths to the upper and lower stability transitions, as well as the seismogenic thickness calculated from selected earthquakes of the ISC Bulletin (International Seismological Centre, 2022). All methodological details can be found in the main publication (see section 2). We used the uppermost 75 km of the gravity-constrained structural and density model of Gómez-García et al. (2020, 2021) to derive the 3D thermal configuration of the study area. A steady-state approach was followed, in which upper and lower boundary conditions were set to run the thermal experiments using the software GOLEM (Cacace amp; Jacquey, 2017; Jacquey amp; Cacace, 2017). We selected earthquakes from the ISC Bulletin from January 1980 to January 2021 (International Seismological Centre, 2022), considering the magnitude of completeness for different periods, removing earthquakes without depth, set as 0 km or fixed, as well as those with reported hypocentral depth errors gt;30 km. Of this set, we selected the crustal earthquakes, located between the topo-bathymetry from the GEBCO relief (Weatherall et al., 2015) and the Moho depth from the GEMMA model (Reguzzoni amp; Sampietro, 2015), interpolated to a resolution of 5 km. From this earthquake subset we computed the upper and lower stability transitions for seismogenesis, as the 10th and 90th percentiles (D10 and D90), respectively, of the hypocentral depths. These percentiles were mapped on a latitude-longitude grid, using for each grid node its 20 closest earthquakes as sample. The hypocentral temperatures and the temperatures at the D10 and D90 crustal depths were calculated from the lithospheric-scale thermal model. Lastly, the crustal seismogenic thickness was computed as the difference between D90 and D10 for each grid node. For more details about the modelling approach and interpretation of the results, we kindly ask the reader to refer to the main publication: Gomez-Garcia et al., (2022).
    Language: English
    Type: info:eu-repo/semantics/workingPaper
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  • 4
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    Anillo (2021)
    GFZ Data Services
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    Publication Date: 2021-06-22
    Description: The Anillo is a dense temporary seismic and geodetic network extending approximately 200 km along the strike of the subduction zone in North Chile in order to investigate how earthquakes and aseismic slip scale over a broader spectrum of source sizes, to understand the complex relationships between seismic and aseismic deformation, and to identify possible structural controls. This experiment is embedded into a larger scale experimental effort carried out by institutions in Germany and Chile. Waveform data are available from the GEOFON data centre, under network code Y6.
    Language: English
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  • 5
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    IPOC Creep (2017)
    GFZ Data Services
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    Publication Date: 2023-06-12
    Description: Abstract
    Description: IPOC Creep is an array of 11 creepmeters installed along 4 active segments oft eh Atacama Fault Zone in Northern Chile. Installation of instruments started in 2008 within the framework of the Integrated Plate-boundary Observatory Chile (IPOC) and was completed in 2011. All installations are designed by the authors and follow a general concept, but are adapted to each site specifically. All the installed instruments use solid 12 mm thick invar rods as length standards, which are firmly attached to a concrete foundation in the hanging wall of the fault and pass through a PVC pipe to the footwall side of the fault where it is fixed to another concrete foundation. The creepmeters are buried at a depth of 30 - 70 cm, in order to increase the signal-to-noise ratio. We use a LVDT (linear variable differential transformer) with a range of 50 mm to monitor the relative displacement of the free end of the rod relative to the fixation point. Displacement is measured as voltage change and stored on a data logger with a sampling rate of 1/min (2008-2011 and 2/min (since 2011). Temperature at the rod is continuously measured with the same sampling rate to correct for thermal expansion and contraction of the length standard. The length of the instrument is dependent on the geometry at each site and ranges between 2 and 9 m. More specific information on each site can be found on http://www.ipoc-network.org/index.php/observatory/creepmeter.html . The Data is stored as time series since the initial start of operation of each creepmeter until July 2016. Data format is asci and contains 4 columns: 1st column Date[D.M.Y] 2nd column Time [HH:MM:SS] 3rd column ReferenceSensor[V]The reference signal is a steady signal of 1V and fluctuations indicate general voltage fluctuations in the setup. By normalizing to the reference signal it is possible to correct for these voltage changes. 4th column CreepSensor[V]The measured voltage of the CreepSensor is linearly proportional to the actual displacement. It can be converted to micrometers as follows: Displacement(µm) = (CreepSensor(t2)[V] - CreepSensor(t1)[V]) * 10000.
    Keywords: Tectonic Creep ; Active Faults ; Fault Displacement Rate ; Convergent Margin ; Trench Parallel Fault System ; IPOC
    Language: English
    Type: Dataset
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  • 6
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    Urban Inequality (2021)
    MDPI - Multidisciplinary Digital Publishing Institute
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    Publication Date: 2023-12-20
    Description: After the impact of the 2007 crisis and post-crisis austerity policies, cities are being reconfigured under the auspices of inequality. The objective of this book is to study inequality in the city at different scales and in all territories, from informal settlements and the “urbanization of poverty” in the countries of the South, to the fragmentation of the city or urban segregation as global phenomena in 21st century cities. In line with this, we propose introducing new debates on the city and inequality linked to social movements, urban governance, and the access to and quality of drinking water, among other topics. The issue includes articles on social movements and resistance in Latin American cities, vulnerability in crisis-hit Spanish cities, and the segregation and quality of basic services in US cities.
    Keywords: HM401-1281 ; NX1-820 ; H1-99 ; Segregation ; Social movements ; Urban inequality ; Urban governance ; Vulnerability ; Crisis ; bic Book Industry Communication::J Society & social sciences::JF Society & culture: general::JFF Social issues & processes::JFFP Social interaction
    Language: English
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  • 7
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    UAV‐Based Remote Sensing Volume 2 (2021)
    MDPI - Multidisciplinary Digital Publishing Institute
    Details
    Publication Date: 2024-04-11
    Description: ctive technological development has fuelled rapid growth in the number of Unmanned Aerial Vehicle (UAV) platforms being deployed around the globe. Novel UAV platforms, UAV-based sensors, robotic sensing and imaging techniques, the development of processing workflows, as well as the capacity of ultra-high temporal and spatial resolution data, provide both opportunities and challenges that will allow engineers and scientists to address novel and important scientific questions in UAV and sensor design, remote sensing and environmental monitoring. This work features papers on UAV sensor design, improvements in UAV sensor technology, obstacle detection, methods for measuring optical flow, target tracking, gimbal influence on the stability of UAV images, augmented reality tools, segmentation in digital surface models for 3D reconstruction, detection, location and grasping objects, multi-target localization, vision-based tracking in cooperative multi-UAV systems, noise suppression techniques , rectification for oblique images, two-UAV communication system, fuzzy-based hybrid control algorithms, pedestrian detection and tracking as well as a range of atmospheric, geological, , agricultural, ecological, reef, wildlife, building and construction, coastal area coverage, search and rescue (SAR), water plume temperature measurements, aeromagnetic and archaeological surveys applications
    Keywords: TA1-2040 ; UAV-Based Remote Sensing ; drones ; pedestrian detection and tracking as well as a range of atmospheric ; UAV images ; fuzzy-based hybrid control algorithms ; water plume temperature measurements ; aeromagnetic and archaeological surveys ; geological ; two-UAV communication system ; agricultural ; wildlife ; reef ; detection ; multi-target localization ; ecological ; search and rescue (SAR) ; coastal area coverage ; remote sensing ; environmental science ; segmentation in digital surface models for 3D reconstruction ; location and grasping objects ; augmented reality tools ; building and construction ; aerial robotics ; noise suppression techniques ; rectification for oblique images ; vision-based tracking in cooperative multi-UAV systems ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
    Language: English
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  • 8
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    Analysis for Power Quality Monitoring (2021)
    MDPI - Multidisciplinary Digital Publishing Institute
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    Publication Date: 2024-04-11
    Description: We are immersed in the so-called digital energy network, continuously introducing new technological advances for a better way of life. Numerous emerging words are in the spotlight, namely: Internet of Things (IoT), Big Data, Smart Cities, Smart Grid, Industry 4.0, etc. To achieve this formidable goal, systems should work more efficiently, and this fact inevitably leads to power quality (PQ) assurance. Apart from its economic losses, a bad PQ implies serious risks for machines, and consequently for people. Many researchers are endeavoring to develop new analysis techniques, instruments, measurement methods, and new indices and norms that match and fulfil the requirements regarding the current operation of the electrical network. This book offers a compilation of the some recent advances in this field. The chapters range from computing issues to technological implementations, going through event detection strategies and new indices and measurement methods that contribute significantly to the advancement of PQ analysis. Experiments have been developed within the frames of research units and projects, and deal with real data from industry and public buildings. Human beings have an unavoidable commitment with sustainability, which implies adapting PQ monitoring techniques to our dynamic world, defining a digital and smart concept of quality for electricity.
    Keywords: TA1-2040 ; T1-995 ; modulation ; FPGA ; flicker ; DC power quality indices ; limited resources hardware ; low cost monitor ; dynamic phasor estimation ; harmonics ; RMS voltage estimation ; islanding operation ; embedded system ; signal waveform compression ; big data ; digital signal processing ; data scalability ; data compression ; wind-grid distribution ; voltage fluctuations ; smart grid (SG) applications ; power event detection ; modelling ; voltage ripple ; power quality monitoring ; higher-order statistics (HOS) ; power distribution systems ; power quality disturbances ; reconfigurable computing ; operation analysis ; sensor node ; power quality (PQ) ; distribution networks ; wireless sensor network ; reliability ; power system measurements ; embedded microcontroller ; phasor measurement units ; IoT ; soft computing ; smart grids ; power quality monitor ; induction machines ; sensors and instruments for PQ ; Kalman filters ; low-voltage DC networks ; convolution neural network ; spectral kurtosis ; municipal distribution network ; statistical signal processing ; detection ; power quality disturbance ; smart grid ; energizing warning ; dense-mesh topology ; low computational cost ; fourth-order statistics ; PQ indices and thresholds ; machine learning ; voltage sags ; power quality ; computational solutions for advanced metering infrastructure (AMI) ; constant amplitude trend ; phasor measurement ; improved principal component analysis ; long-term ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
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  • 9
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    Data Acquisition and Processing in Cultural Heritage (2021)
    MDPI - Multidisciplinary Digital Publishing Institute
    Details
    Publication Date: 2024-04-11
    Description: Advances in the knowledge of the tangible components (position, size, shape) and intangible components (identity, habits) of an historic building or site involves fundamental and complex tasks in any project related to the conservation of cultural heritage (CH). In recent years, new geotechnologies have proven their usefulness and added value to the field of cultural heritage (CH) in the tasks of recording, modeling, conserving, and visualizing. In addition, current developments in building information modeling (HBIM), allow integration and simulation of different sources of information, generating a digital twin of any complex CH construction. As a result, experts in the area have increased the number of available sensors and methodologies. However, the quick evolution of geospatial technologies makes it necessary to revise their use, integration, and application in CH. This process is difficult to adopt, due to the new options which are opened for the study, analysis, management, and valorization of CH. Therefore, the aim of the present Special Issue is to cover the latest relevant topics, trends, and best practices in geospatial technologies and processing methodologies for CH sites and scenarios as well as to introduce the new tendencies. This book originates from the Special Issue “Data Acquisition and Processing in Cultural Heritage”, focusing primarily on data and sensor integration for CH; documentation/restoration in CH; heritage 3D documentation and modeling of complex CH sites; drone inspections in CH; software development in CH; and augmented reality in CH. It is hoped that this book will provide the advice and guidance required for any CH professional, making the best possible use of these sensors and methods in CH.
    Keywords: TA1-2040 ; T1-995 ; laser-scanning ; visualization ; cylinder fitting ; replica ; regression analysis ; augmented reality ; CATCHA ; Dazu Thousand-Hand Bodhisattva statue ; geomatics ; thermal dynamics ; terrestrial laser scanning ; navigation ; 3D reconstruction ; real-time ; digital documentation ; terraces ; laser scanning ; point clouds ; cultural heritage site ; multi-scale ; spatial geometric features ; vernacular ; instant tracking ; heritage ; community ; monitoring ; planar representation of vault ; cultural heritage ; integrated three-dimensional modeling ; cultural heritage documentation ; open-source software ; computer graphics ; MMS ; multi-sensor ; 4D modeling ; Arches-HIP ; multiscale ; data integration ; skeleton line ; data fusion ; close range photogrammetry ; drones ; UNESCO ; web-based GIS ; photogrammetry ; UAV ; thermal imaging ; lost heritage ; cultural heritage preservation ; virtual restoration ; out of plumb ; SLAM ; camera tracking ; LiDAR ; unmanned aerial vehicle photogrammetry ; point cloud ; tropical ; dry-stone walls ; multisensor ; heritage resources management ; frescoed vault ; 3D models ; landscape ; 3D printing ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
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  • 10
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    UAV‐Based Remote Sensing Volume 1 (2021)
    MDPI - Multidisciplinary Digital Publishing Institute
    Details
    Publication Date: 2024-04-11
    Description: Active technological development has fuelled rapid growth in the number of Unmanned Aerial Vehicle (UAV) platforms being deployed around the globe. Novel UAV platforms, UAV-based sensors, robotic sensing and imaging techniques, the development of processing workflows, as well as the capacity of ultra-high temporal and spatial resolution data, provide both opportunities and challenges that will allow engineers and scientists to address novel and important scientific questions in UAV and sensor design, remote sensing and environmental monitoring. This work features papers on UAV sensor design, improvements in UAV sensor technology, obstacle detection, methods for measuring optical flow, target tracking, gimbal influence on the stability of UAV images, augmented reality tools, segmentation in digital surface models for 3D reconstruction, detection, location and grasping objects, multi-target localization, vision-based tracking in cooperative multi-UAV systems, noise suppression techniques , rectification for oblique images, two-UAV communication system, fuzzy-based hybrid control algorithms, pedestrian detection and tracking as well as a range of atmospheric, geological, , agricultural, ecological, reef, wildlife, building and construction, coastal area coverage, search and rescue (SAR), water plume temperature measurements, aeromagnetic and archaeological surveys applications
    Keywords: TA1-2040 ; UAV-Based Remote Sensing ; drones ; pedestrian detection and tracking as well as a range of atmospheric ; UAV images ; fuzzy-based hybrid control algorithms ; water plume temperature measurements ; aeromagnetic and archaeological surveys ; geological ; two-UAV communication system ; agricultural ; wildlife ; reef ; detection ; multi-target localization ; ecological ; search and rescue (SAR) ; coastal area coverage ; remote sensing ; environmental science ; segmentation in digital surface models for 3D reconstruction ; location and grasping objects ; augmented reality tools ; building and construction ; aerial robotics ; noise suppression techniques ; rectification for oblique images ; vision-based tracking in cooperative multi-UAV systems ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
    Language: English
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