University of Applied science Technikum Wien was founded in 1994 and became Vienna’s first university of applied science in 2000. It is the largest technical university of applied science in Austria and offers twelve bachelor's degree and seventeen master's degree programs. Wikipedia.
Strohmaier S.,University of Applied Sciences Technikum Wien |
Zwierzchowski G.,Greater Poland Cancer Center
Journal of Contemporary Brachytherapy | Year: 2011
This paper compares the isotopes 60Co and 192Ir as radiation sources for high-dose-rate (HDR) afterloading brachytherapy. The smaller size of 192Ir sources made it the preferred radionuclide for temporary brachytherapy treatments. Recently also 60Co sources have been made available with identical geometrical dimensions. This paper compares the characteristics of both nuclides in different fields of brachytherapy based on scientific literature. In an additional part of this paper reports from medical physicists of several radiation therapy institutes are discussed. The purpose of this work is to investigate the advantages or disadvantages of both radionuclides for HDR brachytherapy due to their physical differences. The motivation is to provide useful information to support decision-making procedures in the selection of equipment for brachytherapy treatment rooms. The results of this work show that no advantages or disadvantages exist for 60Co sources compared to 192Ir sources with regard to clinical aspects. Nevertheless, there are potential logistical advantages of 60Co sources due to its longer half-life (5.3 years vs. 74 days), making it an interesting alternative especially in developing countries.
Wassermann J.,University of Applied Sciences Technikum Wien
Communications in Computer and Information Science | Year: 2013
This paper presents a new approach for watermarking of digital video providing robustness against MPEG compression. The initial video is decomposed by one-dimensional 2 Level Wavelet Transform. The low pass filtered LL video stream is used for embedding the procedure. Every frame of this sequence undergoes a 16x16 block wise DCT before the embedding procedure is applied on selected coefficients of the spectrum. The embedding algorithm itself is realized by spread spectrum techniques. The watermark bits are substituted by a set of 16 basis images of 2D-Hadamard Transform of the block size 8x8. Instead of embedding 1 or 0 of the watermark the corresponding pattern of basis images are embedded by spread spectrum routine into the selected coefficients of DCT spectrum. The experimental results show that this method seems to be very robust against MPEG compression, adding noise and obtaining low degradation of the host sequence. © Springer-Verlag Berlin Heidelberg 2013.
Pucher R.K.,University of Applied Sciences Technikum Wien
Proceedings - International Conference on Intelligent Systems, Modelling and Simulation, ISMS | Year: 2015
To perceive the world is a difficult task. This is equally true for robots and humans. Soccer playing robots need to perceive the world in a specific way to be able to shoot goals. Software engineers need to perceive the needs of customers to be able to create easy to use interfaces. The perception system of soccer playing robots does produce strange behavior if unexpected objects are found on the playing field. If an unexpected red object is encountered it will be misinterpreted as ball. Similarly humans often misinterpret information they do not expect. For teaching purposes the simple mechanism of the robots helps students to understand how misinterpretation in the human perception system occurs and how they can be avoided. © 2014 IEEE.
Agency: Cordis | Branch: FP7 | Program: CSA-CA | Phase: ENERGY-2007-7.3-03 | Award Amount: 2.73M | Year: 2008
SmartGrids ERA-NET develops transnational research activities to speed up the development of a Smart European Electrical Infrastructure. A necessity for a successful realisation of the European Action Plan Energy Policy for Europe. This will change the European electricity supply with strong consumer response, large scale supplies of renewable electricity and high levels of distributed generation. SmartGrids ERA-NET provides co-ordination of the related research activities within the national and regional public (co)funded RTD. To make a kick start, the consortium already defined three logical issues for joint calls Electrical Transport Systems; Electrical Distribution Systems and Regulatory Issues. SmartGrids ERA-NET creates a network of programme managers, closely connected to policy makers and industry that undertakes joint activities. The objective of SmartGrids ERA-NET is the mutual opening up of the research programmes, research infrastructures and joint activities (calls). The ambition is to establish cooperation beyond the ERA-NET and between RTD managers EU-wide. The work plan foresees 4-step approach: Step 1: Exchange of information Step 2: Strategic activities and best practices Step 3: Implementation of joint activities Step 4: Transnational research activities The Consortium represents National and Regional programmes of 12 European countries, which gives the SmartGrids ERA-NET the critical mass required for successful operations. All members have assigned senior staff to this ERA-NET, who are experienced with home front programmes and international cooperation.
Himmelstoss F.A.,University of Applied Sciences Technikum Wien
Journal of Power Electronics | Year: 2010
A way how to teach a general understanding of switched mode power supplies (SMPS) is shown. A fourth order PWM DC-to-DC converter with limited duty cycle range is treated as an example and a survey over important data (maximum voltage and current ratings for the elements, rms- values for the semiconductor devices and a rough approximation of the losses) of the circuit is given. Furthermore, a converter model based on duty ratio averaging is established. Continuous mode of operation is used. The results make it possible to estimate the applicability of the given converter structure and offer sufficient material for the calculation, design, and analysis and give a better insight into switched mode energy conversion.