The fiber optic sensors are used in various industries. Advantages of optical sensors are based on the benefits of fiber and partially profit at their technological advances. The fiber optic temperature sensors are based on more than one way of…

High precision electrical resistance measurements were performed in the low  temperature range from 4.2 K up to room temperature on a holmium bulk sample, and on holmium thin films in magnetic field. The X-ray diffraction of Ho films confirmed  their preferential crystal…

In this paper the binary modulation formats and their application in passive optical networks have been discussed. Passive optical networks are characterized by dividing the optical signal between several end users by using passive splitters, which added a significant attenuation…

This contribution is concerned with the modelling of destructive effects of a high-velocity water jet, used as a tool for preparation of surfaces during reconstructions, on a degraded layer of concrete. The destruction action of a water jet on model material…

This paper deals with VoIP communication security and various techniques of VoIP attacks. We divided these threats in several categories according to their specific behaviour and their impact on the affected system. We also tried to find effective methods to…

Delay in VoIP technology is very unpleasant issue and therefore a voice packets prioritization must be ensured. To maintain the high call quality a maximum information delivery time from the sender to the recipient is set to 150 ms. This…

The term “telematics”, which originated more than ten years ago, stands for integration of technologies and solutions from the field of telecommunication, automation and computer science. Telematics is the combination of words “tele” (transfer at some distance, remote access) and…

Electric servodrives are characterized by precise tracking and its derivations. The way to meet this goal cost them a number of obstacles, whether variations associated with end-stage of astatism, changes in the positioning system parameters or to changes in load…

As the accuracy of the electricity load forecast is crucial in providing better cost effective risk management plans, this paper proposes a Short Term Electricity Load Forecast (STLF) model with high forecasting accuracy. Two kind of neural networks, Multilayer Perceptron…

Modern telecommunication networks work on the transmission method of common data streams in which data bursts consisting of packets that further consist of particular bits are multiplexed from various traffic sources. The larger amount of data is transmitted through a…