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Auflistung nach Autor:in "Tochtermann, Klaus"

1 - 10 von 340
  • Konferenzbeitrag
    3D-Grundwasseranalyse von Bauvorhaben mittels GeoPro3D
    (Environmental Communication in the Information Society - Proceedings of the 16th Conference, 2002) Hilbring, Désirée
    GeoPro is a 3D GIS application for visualising the ground water table and hydrogeological profiles in designated regions for construction sites. The term construction sites comprises single as well as groups of buildings for urban planning and routes for regional planning. GeoPro3D is a tool to detect conflicts between construction sites and the ground water table. To achieve this the user can view and analyse the entire planning situation or interesting parts of the scene in a three dimensional virtual world embedded in a Geographic Information System.
  • Konferenzbeitrag
    A Bayesian Approach to Estimation of Metal Flows in Waste Streams
    (Environmental Communication in the Information Society - Proceedings of the 16th Conference, 2002) Löfving, Erik; Grimvall, Anders
    Metal contents in waste are normally presented without any measures of uncertainty, and, if such measures are given, they are normally based on subjective judgements. Moreover, it is difficult to analyse existing data sets by employing traditional statistical procedures. The number of analysed samples can be very small and the sampling strategy is often unknown. Outliers are common and it is not unusual that the standard deviation is larger than the mean. In this paper, we propose a method that combines subjective judgement of uncertainty with actual observations to establish uncertainty bounds. The Bayesian statistical framework is used to set up a probability model that reflects our scientific problem, and this provides a theoretical basis for the inference problem.
  • Konferenzbeitrag
    A Comparative Eco-balance for Coating Materials with Epoxidised Derivatives
    (Environmental Communication in the Information Society - Proceedings of the 16th Conference, 2002) Khatib, Chaouki; Marx-Gómez, Jorge; Prötzsch, Silke; Rautenstrauch, Claus
    The scope of the presented project was to illuminate and describe the potential environmental impacts which are caused by the production and application of a coating material using epoxidised derivatives. Therefore an appropriate comparative eco-balance in collaboration with the company BIOMEL GmbH located in Dessau (Germany) shall be conducted. Problem definition, approach and results will be given.
  • Konferenzbeitrag
    A Data Mining Tool for the Analysis of Epidemiological Data
    (Managing Environmental Knowledge, 2006) Vlachogiannis, Diamando; Sfetsos, Athanasios
    The present paper introduces an integrated approach based on statistical analysis coupled with data mining to analyse epidemiological data. Initially, the statistical properties of the data are analysed. The causality of the exogenous variables (e.g. meteorological and air quality) on the epidemiological data through the Granger causality test is estimated in an attempt to identify those variables that explain major variations. Those variables that are estimated as important are subsequently binned into a finite number of categories as a pre-processing step for the data mining algorithm. The epidemiological and meteorological data are grouped into 5 categories, were as for the air quality parameters the Air Quality Index introduced by U.S. EPA is utilised. Then an algorithm to estimate association rules from the categorised data is developed and applied. The outcomes of the analysis are patterns that relate meteorological and air quality characteristics to specific epidemiological conditions and appear systematically on the examined data set. The application of the developed methodology is performed using data from two major U.S. cities, namely Los Angeles and Pittsburgh.
  • Konferenzbeitrag
    A Decision Support Tool for the Selection of Clean Technologies in SME's
    (Environmental Communication in the Information Society - Proceedings of the 16th Conference, 2002) Kakaras, Emmanuel; Giannakopoulos, Dionysios; Hatzilau, Christina St.; Angelopoulou, Annie
    A methodological approach and the results related to the development and the implementation of a tool for the introduction of clean technologies (CT) to SME's was developed resulting into an innovative and user-friendly software package Decision Support Tool (DST) using an integrated techno-economical full-scale application. The methodological scheme adopted for the design of the DST was based on the formulation of a Clean Technologies database for the Textile Industry, which was developed by a survey of the "clean" textile processes, as well as, on the elaboration of mass/energy balances of the textile processes. The DST was simulated successfully in industrial environment.
  • Konferenzbeitrag
    A Floodplain Inventory for the Danube River Basin Based on GIS and Satellite Technologies, with a Special Focus on Geo-referenced Digital Videography
    (Environmental Communication in the Information Society - Proceedings of the 16th Conference, 2002) Schwarz, Ulrich; Jensen, Svend
    There is a long tradition of using remote sensing applications for the inventory of floodplain areas, in this case particularly wetlands, where in English speaking countries videographic techniques have been extensively used. Videography represents a very cost-effective image acquisition and monitoring procedure that can be used in combination with widely available satellite data (Landsat 7), even when digital video data has an inferior geometric quality when compared to high resolution scanner data and orthophotos. In the following article a proposal for an inventory covering the Danubian floodplains with regard to methodology and operational realisation has been made. Accordingly specific applications, as well as the professional technical aspects under different conditions for various users are illustrated.
  • Konferenzbeitrag
    A GIS-based Information System for Managing and Analysing Profile Information for the Use in the Water Management Authorities within the State of Baden-Württemberg
    (Environmental Communication in the Information Society - Proceedings of the 16th Conference, 2002) Haase, Michael; Braun, Peter; Kröger, Joachim; Stegmaier, Andreas
    Profile data are required for a variety of tasks which have to performed by river authorities. The acquisition of high quality profile data in general is expensive. The results of a survey among users of profile data in the state of Baden-Wuerttemberg, Germany show that digital profile data are not managed uniquely. Due to this fact data loss may easily result. In addition it is very difficult to provide interoperability services for these profile data. Against this background the Ministry of Environment and Traffic of the state of BadenWuerttemberg has contracted the Research Institute for Applied Knowledge Processing at the University of Ulm to design an information system for storing, retrieving and handling profile data. The latter is subject to this paper.
  • Konferenzbeitrag
    A GIS-based Model for the Assessment of Energy and Environmental Contributions of Distributed Energy Systems
    (Managing Environmental Knowledge, 2006) Mori, Shunsuke; Ito, Junichi; Ishida, Takeshi; Morimoto, Shinichiro
    Cogeneration systems (CGS) and District Heating Systems (DHC) are often expected to contribute to the energy conservation and CO2 emission reduction in the commercial and residential buildings. However, since the contribution strongly depends on the regional conditions as well as the energy demand patterns, existing assessments have mainly dealt with the certain building or a district. In this paper, to evaluate the potential reduction of CGS and DHC more generally, we develop a GIS based energy system assessment model. We pick up seven regions of Utsunomiya-city which locates near Tokyo and has 450 thousand inhabitants, as a typical mid-size city of Japan. Applying GIS, we evaluate detailed energy demand statistics, which are then transferred to the energy flow model taking into account the properties of the energy equipments. The outputs of the model are then applied to estimate the potential contribution of the distributed energy systems to the whole Utsunomiya city.
  • Konferenzbeitrag
    A GIS-based Route Mapping Tool for Disabled Access in Urban Environments
    (Environmental Communication in the Information Society - Proceedings of the 16th Conference, 2002) Beale, Linda; Briggs, David
    Access and mobility are important dimensions of quality of life. For wheelchair users, everyday trips are often fraught with problems with many barriers, imperceptible to the able-bodied, hindering or totally restricting mobility. The MAGUS project developed and tested a decision-making tool that offers information that will assist route planning based upon the situated knowledge of wheelchair users. The study employed social science techniques to investigate and quantify urban barriers, and GIS and computer technologies to translate these into an operational route assessment and modelling package, using dynamic segmentation and network analysis techniques. This tool was applied and tested in Northampton, UK and provides a decision support and mapping tool for planners, and a guidance device to help wheelchair users.
  • Konferenzbeitrag
    A GIS-based Water Supply Information System for an Urban Area
    (Managing Environmental Knowledge, 2006) Dikshit, Anil Kumar; Krishnarao, P.V.
    A Water Supply Information System (WatSIS) has been developed for the sector 9 of Bidanasi area of Cuttack city in India using street layout, water distribution, house information and valve positions maps for the study area. WatSIS aims at serving as a decision support system for the water works management for maintaining the records of leaks and repairs undertaken; generating contracts; developing work schedules for crews; developing pipe replacement programmes; fixing water charge; automatic billing of water charges; carrying out risk assessment due to main break; providing enhanced customer services etc. A few capabilities of the system have been demonstrated with the help of examples.