Publikationen


Suche nach „[Wolfgang] [Dorner]“ hat 174 Publikationen gefunden
Suchergebnis als PDF
    DigitalMobilAngewandte InformatikTC Freyung

    Beitrag (Sammelband oder Tagungsband)

    M. K. Vichrová, P. Hájek, M. Kepka, Laura Fiegler, Wolfgang Dorner, Mariann Juha

    Peregrinus Silva Bohemica. A Digital Travel Guide for Navigation Assistance

    Proceedings of the 2019 9th International Conference on Advanced Computer Information Technologies (ACIT) [June 5-7, 2019; České Budějovice, Czech Republic]

    2019

    DOI: 10.1109/ACITT.2019.8779883

    Abstract anzeigen

    How can historical cultural assets be made accessible and experienced with the help of digital media? Scientists in the Bavarian-Bohemian border region are dealing with this question in the context of the Peregrinus Silva Bohemica project. Historic sites and buildings are made available for all devices. Interesting facts about the monuments are digitally reworked, interpreted and made clear, for example with the help of specially constructed 3D representations or augmented reality (AR).

    DigitalMobilElektrotechnik und MedientechnikTC Freyung

    Beitrag (Sammelband oder Tagungsband)

    Simon Graf, Raphaela Pagany, Wolfgang Dorner, A. Weigold

    Georeferencing of road infrastructure from photographs using computer vision and deep learning for road safety applications

    Proceedings of the 5th International Conference on Geographical Information Systems Theory, Applications and Management (GISTAM) [May 3-5, 2019; Heraklion, Greece], vol. Vol. 1

    2019

    DOI: 10.5220/0007706800710076

    MobilElektrotechnik und MedientechnikTC Freyung

    Zeitschriftenartikel

    Raphaela Pagany, Wolfgang Dorner

    Do Crash Barriers and Fences Have an Impact on Wildlife-Vehicle Collisions? An Artificial Intelligence and GIS-Based Analysis

    ISPRS International Journal of Geo-Information, vol. 8, no. 2

    2019

    DOI: 10.3390/ijgi8020066

    Abstract anzeigen

    Wildlife–vehicle collisions (WVCs) cause significant road mortality of wildlife and have led to the installation of protective measures along streets. Until now, it has been difficult to determine the impact of roadside infrastructure that might act as a barrier for animals. The main deficits are the lack of geodata for roadside infrastructure and georeferenced accidents recorded for a larger area. We analyzed 113 km of road network of the district Freyung-Grafenau, Germany, and 1571 WVCs, examining correlations between the appearance of WVCs, the presence or absence of roadside infrastructure, particularly crash barriers and fences, and the relevance of the blocking effect for individual species. To receive infrastructure data on a larger scale, we analyzed 5596 road inspection images with a neural network for barrier recognition and a GIS for a complete spatial inventory. This data was combined with the data of WVCs in GIS to evaluate the infrastructure’s impact on accidents. The results show that crash barriers have an effect on WVCs, as collisions are lower on roads with crash barriers. In particular, smaller animals have a lower collision share. The risk reduction at fenced sections could not be proven as fenced sections are only available at 3% of the analyzed roads. Thus, especially the fence dataset must be validated by a larger sample number. However, these preliminary results indicate that the combination of artificial intelligence and GIS may be used to analyze and better allocate protective barriers or to apply it in alternative measures, such as dynamic WVC risk-warning.

    NachhaltigTC Freyung

    Beitrag (Sammelband oder Tagungsband)

    Luis Ramirez Camargo, Javier Valdés, Y. Masip Macia, Wolfgang Dorner

    Assessment of on-site steady electricity generation from renewable energy sources in Chile

    Energy Procedia (Contributions to the 10th International Conference on Applied Energy ICAE 2018), vol. 158

    2019

    DOI: 10.1016/j.egypro.2019.01.266

    Abstract anzeigen

    Chile has an immense renewable energy potential but their integration in the energy system constitutes a major challenge. The complex topography of the country, the isolation of the different electric grids and the variability of renewable energy sources, makes energy transmission from locations with high variable renewable power generation potential to the demand centres not an easy task. The present study aims at assessing the potential of combining solar power, wind power and storage systems to provide steady loads already from the source. Such a combination should take advantage of complementarity between variable renewable sources and serves to simplify their integration in the energy system. The analysis relies on an optimization model to size hybrid renewable energy systems and 10 years of weather data from the brand new ERA-5 reanalysis. Necessary system sizes to constantly generate 1 MWh of electricity for every hour during the period 2008-2017 are calculated for all possible locations across the country. The results show that the necessary generation and storage capacities to provide a steady energy output are very high even for areas with exceptionally high renewable energy potential.

    NachhaltigTC Freyung

    Beitrag (Sammelband oder Tagungsband)

    Luis Ramirez Camargo, K. Gruber, F. Nitsch, Wolfgang Dorner

    Hybrid renewable energy systems to supply electricity to self-sufficient residential buildings in Central Europe

    Energy Procedia (Contributions to the 10th International Conference on Applied Energy ICAE 2018), vol. 158

    2019

    DOI: 10.1016/j.egypro.2019.01.096

    Abstract anzeigen

    This work evaluates potentials of photovoltaic and battery systems with additional micro-generation wind turbines (10.5 kW) to cover electricity demand of residential users in two countries in Central Europe. It relies on high-resolution regional reanalysis data and a techno-economical optimization model. Maps showing the number of wind turbines, photovoltaic and battery systems sizes necessary to supply electricity for clusters of electricity self-sufficient single-family houses across Germany and the Czech Republic are generated. No general trends that apply for the two countries concerning the relation between the sizes of the different technologies were identified. However, it was possible to determine several large areas where the inclusion of small wind turbines decreases the total system costs and considerably reduces the required storage capacities. Results are discussed and compared to previous work on self-sufficient single-family houses.

    NachhaltigElektrotechnik und MedientechnikTC Freyung

    Beitrag (Sammelband oder Tagungsband)

    F. Nitsch, K. Gruber, Luis Ramirez Camargo, Wolfgang Dorner

    Assessing regional reanalysis data sets for planning small-scale renewable energy system

    20th EGU General Assembly, EGU2018, Proceedings from the conference held 4-13 April, 2018 in Vienna, Austria, p.4996

    2018

    Abstract anzeigen

    An accurate resource availability estimation is vital for proper location, sizing and economic viability of renewable energy plants. Large photovoltaic (PV) and wind installations undergo a long and exhaustive planning process that would imply unacceptably high costs for developers of small-scale installations. In a context of abolition of feed-in tariffs, electricity feed-in restricted by grid capacity constraints and storage systems being commercialized at lower costs, the acquisition of high quality solar radiation and wind speed data becomes important also for planners of small scale installations. These data allow the characterization of short-term and inter-annual variability of the resources availability. Global reanalysis data sets provide long time series of these variables with temporal resolutions that can be as high as one hour and at no cost for the final user. However, due to the coarse spatial resolution and relatively low accuracy these products only provide an inferior alternative for data retrieval compared to e.g. satellite derived radiation data sets or advanced interpolation methods for wind speed data. The COSMO-REA6 and COSMOS-REA2 regional reanalysis overcome this limitation by increasing the resolution of the reanalysis to six and two kilometres respectively. The accuracy of these data sets for variables with high relevancy for meteorology, such as rainfall, has been assessed with satisfactory results but an independent evaluation for variables relevant for renewable energy generation has not been performed yet. This work presents an assessment of the variables of these data sets that have been made available to the public until November 2017. This assessment is performed for the area of the federal state of Bavaria in Germany and whole Czech Republic using data of the Bavarian agro-meteorological network and the Czech Hydrometeorological Institute. Accuracy indicators are calculated for horizontal global radiation or cloud coverage (depending on data availability from the weather stations) and wind speeds at 10 meters height. While there are important differences between weather stations and cloud coverage data, the results for wind speeds and global solar irradiance are satisfactory for most of the locations. For certain locations widely used indicators such as the Pearson's correlation coefficient reach values above 0.8 for wind speeds and above 0.9 for global solar irradiance and the mean biased error is consistently lower than 10 W/m2 and can be as low as 0.3 W/m2 for the irradiance data and is, with a few exceptions, lower than 2 m/s in Germany and lower than 1 m/s in the Czech Republic for wind speed data. A total of eight indicators for the hourly data in the period between 1995 and 2015 are calculated, presented, discussed and compared against international literature dealing with data accuracy for solar irradiance and wind speed data sets.

    DigitalMobilElektrotechnik und MedientechnikTC Freyung

    Zeitschriftenartikel

    Raphaela Pagany, Wolfgang Dorner

    Achtung Wildwechsel! Wie ein dynamische GIS-Lösung hilft, Unfälle zu verhindern

    arcAKTUELL: Operational Intelligence - Vorausschauend planen, no. 3, pp. 60-61

    2018

    DigitalElektrotechnik und MedientechnikTC Freyung

    Vortrag

    F. Eiler, Simon Graf, Wolfgang Dorner

    Artificial Intelligence and the Automatic Classification of Historical Photographs

    TEEM 2018: Sixth International Conference on Technological Ecosystems for Enhancing Multiculturality, Salamanca, Spanien

    2018

    DigitalElektrotechnik und MedientechnikTC Freyung

    Vortrag

    Wolfgang Dorner, Anne Weinfurtner, Simon Graf

    Uncertainty in the Spatial Metadata of Historical Photographs: A Geomatic and Photogrammetric Driven Argumentation

    TEEM 2018: Sixth International Conference on Technological Ecosystems for Enhancing Multiculturality, Salamanca, Spanien

    2018

    DigitalElektrotechnik und MedientechnikTC Freyung

    Vortrag

    Anne Weinfurtner, Wolfgang Dorner, Simon Graf

    Gemeinsam Fotografien dokumentieren – Kollaborative Arbeit von Experten, Laien und Maschine?

    5. Digital Humanities Austria Konferenz (DHA) - Empowering researchers, Salzburg, Österreich

    2018

    DigitalElektrotechnik und MedientechnikTC Freyung

    Vortrag

    Wolfgang Dorner, Mariann Juha

    Museumsapps - Individualität versus Plattformstrategie

    5. Digital Humanities Austria Konferenz (DHA) 2018 - Empowering researchers, Salzburg, Österreich

    2018

    DigitalElektrotechnik und MedientechnikTC Freyung

    Beitrag (Sammelband oder Tagungsband)

    Wolfgang Dorner, Anne Weinfurtner, Simon Graf

    Uncertainty in the Spatial Metadata of Historical Photographs: A Geomatic and Photogrammetric Driven Argumentation

    Proceedings of the Sixth International Conference on Technological Ecosystems for Enhancing Multiculturality (TEEM) 2018 (October 24-26, 2018; Salamanca, Spain), New York, NY

    2018

    ISBN: 978-1-4503-6518-5

    DOI: 10.1145/3284179.328432

    DigitalElektrotechnik und MedientechnikTC Freyung

    Beitrag (Sammelband oder Tagungsband)

    F. Eiler, Simon Graf, Wolfgang Dorner

    Artificial Intelligence and the Automatic Classification of Historical Photographs

    Proceedings of the Sixth International Conference on Technological Ecosystems for Enhancing Multiculturality (TEEM) 2018 (October 24-26, 2018; Salamanca, Spain), New York, NY

    2018

    ISBN: 978-1-4503-6518-5

    DOI: 10.1145/3284179.3284324

    DigitalElektrotechnik und MedientechnikTC Freyung

    Vortrag

    Wolfgang Dorner

    Peregrinus Silva Boehemica – Multimediale Einblicke in die Geschichte des kulturellen Erbes im bayerischböhmischen Grenzraum

    Digitales Kulturerbe: Zugang, Vernetzung und Darstellung, Zürich, Schweiz

    2018

    DigitalElektrotechnik und MedientechnikTC Freyung

    Zeitschriftenartikel

    K. Paclíková, Anne Weinfurtner, M. Vohnoutová, Wolfgang Dorner, J. Fesl, M. Preusz, L. Dostálek, K. Horníčková

    Geoinformatics and Crowdsourcing in Cultural Heritage: A Tool for Managing Historical Archives

    AGRIS on-line Papers in Economics and Informatics, vol. 10, no. 2, pp. 73-83

    2018

    DOI: 10.7160/aol.2018.100207

    Abstract anzeigen

    Archives of historical photographs have a great potential for "geo- or spatial sciences", for they can provide highly relevant visual data on historical landscapes, populated places and settlement structures, including those now destroyed. Processing of these archives represents many challenges, among them the application of geoinformatic concepts and information technologies. The article presents the example of geo-referencing, crowdsourcing, and other computer-based technologies applied to the archival photographs of today-destroyed sites on the Czech – Bavarian border, where many villages, farm sites and monuments were destroyed in the 1950s or abandoned as a consequence of post-WWII development. In the situation of dramatically changing landscape and land use, historical photographs are an important source of documentation for both research and virtual reconstruction of disappeared places, landscape, and society.

    MobilElektrotechnik und MedientechnikTC Freyung

    Vortrag

    C. Hoermann, Raphaela Pagany, Wolfgang Dorner, M. Heurich

    Experience of roe deer individuals helps to prevent traffic accidents

    BioMove Symposium 2018: Integrating Biodiversity Research with Movement Ecology, Potsdam

    2018

    MobilElektrotechnik und MedientechnikTC Freyung

    Vortrag

    C. Hoermann, Raphaela Pagany, Wolfgang Dorner, M. Heurich

    Movement ecology meets roads

    48th Annual Meeting of the Ecological Society of Germany, Austria and Switzerland, Wien, Österreich

    2018

    MobilElektrotechnik und MedientechnikTC Freyung

    Zeitschriftenartikel

    Raphaela Pagany, Luis Ramirez Camargo, Wolfgang Dorner

    A review of spatial localization methodologies for the electric vehicle charging infrastructure

    International Journal of Sustainable Transportation, pp. 1-17

    2018

    DOI: 10.1080/15568318.2018.1481243

    Abstract anzeigen

    With view to the high share of the transport sector in total energy consumption, e-mobility should play an important role within the transition of the energy systems. Policymakers in several countries consider electric vehicles (EV) as an alternative to fossil-fueled vehicles. In order to allow for the development of EV, the charging infrastructure has to be set up at locations with high charging potential, identified by means of various criteria such as demand density or trip length. Many methodologies for locating charging stations (CS) have been developed in the last few years. First, this paper presents a broad overview of publications in the domain of CS localization. A classification scheme is proposed regarding modeling theory and empirical application; further on, models are analyzed, distinguishing between users, route or destination centricity of the approaches and outcomes. In a second step, studies in the field of explicit spatial location planning are reviewed in more detail, that is, in terms of their target criteria and the specialization of underlying analytical processes. One divergence of these approaches lies in the varying level of spatial planning, which could be crucial depending on the planning requirements. It is striking that almost all CS locating concepts are proposed for urban areas. Other constraints, such as the lack of extensive empirical EV traffic data for a better understanding of the driving behavior, are identified. This paper provides an overview of the CS models, a classification approach especially considering the problem’s spatial dimension, and derives perspectives for further research.

    NachhaltigTC Freyung

    Vortrag

    Luis Ramirez Camargo, K. Gruber, F. Nitsch, Wolfgang Dorner

    Does the mix make the magic? Spatiotemporal modelling to assess residential electricity self-sufficiency based on photovoltaics, wind power and batteries

    AGIT Symposium & Expo 2018 - Angewandte Geoinformatik, Salzburg, Österreich

    2018

    NachhaltigTC Freyung

    Vortrag

    Luis Ramirez Camargo, F. Nitsch, K. Gruber, Wolfgang Dorner

    Mapping minimum technical requirements for electricity self-sufficiency of single-family houses using regional reanalysis data and satellite imagery derived data

    European Geosciences Union (EGU) General Assembly 2018, Wien, Österreich

    2018