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Novi Beograd, Serbia

Iles D.,Hrvatska agencija za hranu Croatian Food Agency | MARTINOVIc G.,Elektrotehnicki Fakultet | Kozak D.,Strojarski Fakultet u Slavonskom Brodu
Strojarstvo | Year: 2011

Usage of nanotechnology in food with all of its possible different applications has potential to significantly change today's ways of food manufacturing and packaging as well as to alter fundamental functionality of food. Application of nanotechnology in food increases food safety, allows better delivery of new functional ingredients and extends product life. Food nanotechnology implies nanotechnology application in food package manufacturing and nanotechnology application directly to food products. Production of nanopackages implies usage of nanosensors for detection of contaminants and pathogens, nanosensors for product tracking and control, nanoparticles for improvement of mechanical properties and biodisintegration of a package. New food ingredients in food can be delivered by means of colloids, liposomes, nanoemulsions or nanolaminats, thus transforming food products into health preparation or a medicine. Increased research in the field of nanofood application and a possible nanofood mass production can perhaps lead to health risk for consumers; hence it is important to pass new scientifically based regulations which will define usage of food nanotechnology. Source

Neskovic N.,Elektrotehnicki Fakultet
2011 19th Telecommunications Forum, TELFOR 2011 - Proceedings of Papers | Year: 2011

This paper presents a comprenhensive analysis of contention-based and contention-free MAC protocols of wireless sensor networks. The protocols are compared in terms of energy efficiency, latency in packet delivery, and control overhead. Simulation results of S-MAC (Sensor-MAC) and T-MAC (Timeout-MAC) protocols show average latency in packet delivery, as well as average consumption per node in certain wireless sensor network. © 2011 IEEE. Source

Janjic M.,Elektrotehnicki Fakultet | Neskovic N.,Elektrotehnicki Fakultet
2013 21st Telecommunications Forum Telfor, TELFOR 2013 - Proceedings of Papers | Year: 2013

In this paper the problem of high Peak-to-Average Power Ratio (PAPR) in OFDM (Orhogonal frequency-division multiplexing) signals is studied. Beside describing three techniques for PAPR reduction, SLM (SeLective Mapping), PTS (Partial Transmit Sequence) and Interleaving, detailed analysis of performances of this techniques for various values of relevant parameters (number of phase sequences, number of interleavers, number of phase factors, number of blocks) depending on applied technique, is carried out, as well as comparison of this techniques, based on Matlab simulation results. © 2013 IEEE. Source

Andrejic B.,Elektrotehnicki Fakultet | Ivanis P.,Elektrotehnicki Fakultet
2011 19th Telecommunications Forum, TELFOR 2011 - Proceedings of Papers | Year: 2011

In this paper, software implementation of most commonly used data compression algorithms is described. The application is developed in programming language Delphi 6, it allow testing of Shannon Fano, static and dynamic Huffman as well as Lempel Ziv algorithm. As a result of the application, efficiency and compression level of chosen algorithm is calculated, and comparative analysis of multiple algorithms for the same data sequence is also allowed. User can enter data and read the results using graphic user interface. In order to illustrate the application options, the corresponding numerical results are presented and compared with the results obtained by using commercial data compression tools. © 2011 IEEE. Source

Tomic J.,Elektrotehnicki Fakultet | Neskovic N.,Elektrotehnicki Fakultet
2011 19th Telecommunications Forum, TELFOR 2011 - Proceedings of Papers | Year: 2011

In this paper we evaluated performances of IEEE 802.11s networks. In that purpose, we simulated competition for the medium based on EDCA (Enhanced Distributed Channel Access) and MCCA (Mesh Coordination Function Coordinated Channel Access) mechanisms, using programming language C. We analysed and presented achieved simulation results (average throughput for different traffic categories and average packet delay) depending on the number of Mesh stations and the MAF (MCCA Access Fraction) values. © 2011 IEEE. Source

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