XLVII INTERNATIONAL SCIENTIFIC CONFERENCE ON INFORMATION, COMMUNICATION AND ENERGY SYSTEMS AND TECHNOLOGIES 2012 PROCEEDINGS OF PAPERS VOLUME 2 SOFIA, 2012 Methods for Assessing Information Sites ......................................................................455 Tihomir Stefanov St. Cyril and St. Methodius University of Veliko Tarnovo, Bulgaria INFORMATICS AND COMPUTER SCIENCE (POSTER) One Approach for Development of Software Modules Adding New Geometric Primitives in 3D Graphics Applications ...............................................459 Emiliyan Petkov St. Cyril and St. Methodius University of Veliko Tarnovo, Bulgaria Analysis of Platform Dependencies in Software Solution for Auction and Trading in Electric Energy Market...................................................................................463 Milos Gajic, Marko Djukovic, Sasa Devic, Branislav Atlagic, Zvonko Gorecan, Dragan Tomic Telvent DMS LLC, Serbia Rapid development of GUI Editor for Power grid CIM models ......................................467 Sasa Devic, Lajos Martinovic, Branislav Atlagic, Zvonko Gorecan, Dragan Tomic Telvent DMS LLC, Serbia Building an 8085 Microprocessor Module for the HADES Simulation Framework ......471 Goce Dokoski, Dimitar Bojchev, Aristotel Tentov University Ss Cyril & Methodius in Skopje, Macedonia Аlgorithms for scheduling of resource-constrained jobs .............................................475 Ivaylo Penev, Milena Karova Technical University of Varna, Bulgaria Hybrid Automatic Repeat Request (HARQ) Overview ...................................................479 Ginka Marinova, Slava Yordanova, Nikolay Kostov Technical University of Varna, Bulgaria Digital information transfer systems an overview .........................................................482 Ginka Marinova, Slava Yordanova, Nikolay Kostov, Boris Nikolov Technical University of Varna, Bulgaria Towards applicability of agile software development methodologies .........................485 Aleksandar Dimov, Stavros Stavru, Dessislava Petrova-Antonova, Iva Krasteva University of Sofia "St. Kl. Ohridski", Bulgaria ELECTRONICS (POSTER) FPGA (Field Programmable Gate Arrays) – Based Systems-On-a-Programmable-Chip (SOPC) Development for Educational Purposes............................................................489 Valentina Rankovska Technical University of Gabrovo, Bulgaria Electronic Simulator of Sound (Noise) Effects for Electric Vehicles in Urban Areas .................................................................................................................................493 Georgi Pavlov, Galina Cherneva, Radoslav Katsov, Ivaylo Nenov, Ilko Tаrpov Todor Kableshkov University of Transport, Bulgaria Spray Deposition of PVDF Layers with Application in MEMS Pressure Sensors ........495 Georgi Kolev, Mariya Aleksandrova, Krassimir Denishev Technical University of Sofia, Bulgaria Different Technological Methods for Offset Compensation in Si Hall Effect 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