Transport and Communications - Volume 2.; Issue 1/2014
Permanent URI for this collectionhttps://drepo.uniza.sk/handle/hdluniza/257
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Item Fuel Impact on the Response of AD3.152 UR Engine(University of Zilina, 2014) Ambrozik, Andrzej; Ambrozik, Tomasz; Kurczyński, Dariusz; Łagowski, PiotrThe paper presents results of investigations into the AD3.152 UR engine running on five fuels: commercial diesel oil DO, rapeseed oil fatty acid methyl esters FAME and their blends B10 (90% DO + 10% FAME), B20 (80% DO + 20% FAME), B30 (70% DO + 30% FAME). During the tests, the engine operated in accordance with the full load characteristics. Those characteristics were used to determine the engine response. The paper provides an assessment of the impact of the type of plant-derived fuel on the engine response.Item Software Architecture of an Information System for Aviation Broker Center(University of Zilina, 2014) Krajčovič, Gregor; Horňáková, SilviaThis article describes an information system concept designed to provide large amounts of geospatial data to the public. It addresses specific software design challenges, including wide computational power and storage scalability and unclear definition of stakeholders. It defines functional, security and performance requirements and provides a conceptual system design proposal.Item Different Allocation Systems(University of Zilina, 2014) Letanovská, MáriaBased on the London´s airports example it is obvious that there are differences between 3rd level airports. If the same coordination system would be introduced within various coordinated airports it could lead to various results. The results of analysis of intra-EU route data indicate that larger aircraft have been used at the 3rd level airports and there is no strong evidence of inefficient slot hoarding at these airports, not only before but also after the EC’s recognition of secondary slot trading. In contrast, the analysis of slot trading at Heathrow and Gatwick show that slot trading has taken place more likely within alliance and the chances have been very small for carriers to obtain slots from their actual or potential competitors. For the time being, there may be no need for additional regulatory interventions into secondary slot trading as there is little evidence of inefficient slot hoarding. However, the scarce opportunity of slot trading may lead to less intense competition and then to less efficient use of slots in the long run.Item Comparative Assessment of CI Engine Response(University of Zilina, 2014) Ambrozik, Andrzej; Ambrozik, Tomasz; Kurczyński, Dariusz; Łagowski, PiotrThe response of the piston internal combustion engine provides an important indicator to assess the engine ability to adapt to constantly varying load conditions in its operation. It is the main criterion by which engines powering automotive vehicles are evaluated. It also affects road safety. The engine response depends on the profile of the curve that shows changes in the engine torque as a function of the crankshaft rotational speed. The paper presents a comparison of CI engines representing different generations with respect to constructional level. The engines that underwent comparison were equipped with the fuel system with a rotary injection pump and with Common Rail fuel system.Item Choosing the Suitable Method for Multimodal Logistics Object Location in the Slovak Republic and Setting up the Criteria Matrix(University of Zilina, 2014) Stopka, Ondrej; Šimková, IvanaThis paper deals with the choosing of a suitable method for multimodal logistics object location in the Slovak Republic. The paper also describes several methods concerning the multimodal logistics object location in particular area, determines the crucial method related to this issue and presents setting up the criteria matrix for the needs of this object location in the Slovak Republic.Item Transport and Communications - celé číslo 1/2014(University of Zilina, 2014)