Monitoring of the manifestation of solar radiation and the exploitation of this type of energy predominantly imposes the need to measure a number of parameters related to radiation itself, as well as radiation receivers and other devices of the system. Thermal receivers with liquid as a solar energy transmitter have now become consumer goods with a...

By Dobrnjac Mirko, Miloš Markovic, Sanja Dobrnjac

Modern technological processing various bulk materials provide high requirements for the quality of input raw materials. As practice shows, penetration of metallic inclusions in the raw material takes place during its extraction and during the passage of individual cycles of the technological process and leads to low quality of the output products,...

By Leonid Zamikhovskiy, Ivan Levitsky

The operational definition of water turbidity is an important step in checking the quality of drinking water. In this work an analysis of existing methods and systems of operational control of turbidity of water was carried out, and design of turbidimeter consisting of a two-channel sensor (measuring and reference channels) and a measuring device (...

By Leonid Zamikhovskiy, Svitlana Petriv

The use of the smart cell phones is a massive phenomenon and knowledge newer was so close, on one mouse klick or one screen touch. Young people usually adopt the new technology much faster than others groups of people and we assume that this group of people dispose with a broad range of IT skills. Of all different kind of IT skills we are intereste...

By Dragana M Preradovic, Ljubiša Mićić

Migrant crisis, slow economic growth and growing disillusionment with the European Union led to strengthening of far-right parties that have achieved electoral success in a number of European countries. The collapse of the national economy has created a huge number of unemployed. New problems such as migrant crisis foster instability in the EU part...

By Milijana Ratković

An important aspect of a distributed system regards the design of the communication subsystem meaning the design of its interconnection network. The design of the interconnection network suppose a compromise to achieve some objectives as: high transfer rate, small communication delay, simplicity, scalability, optimal rapport cost/performance. An in...

By Zelina Ioana, Ticala Cristina, Mara Diana Hajdu-Macelaru, Sabo Cosmin

The main goal of this paper was to obtain all acceptable locations for siting of wind turbines in the region of Srebrno jezero lake, near the Danube river, near the borders with the neighbouring Republic of Romania and Republic of Bulgaria. Total of 10 locations for sitting of 2MW wind turbines were accepted. The estimations were obtained using the...

By Predrag Miodrag Živković

The paper presents the laboratory researches results regarding the Aghires quarts sand electroseparation, in two configurations for the ILES laboratory installation. The first studied configuration used a performant electrode (multi needles) from the endowment of the Intense Electric Field Laboratory from UTCN, while in the second analyzed configur...

By C Plesa, R Morar, M L Vadan

The aim of presented paper is elaboration of methodology of upgrading natural minerals in example of chalcocite and bornite sample. The results were obtained by means of laboratory drum separator. This device operates in accordance to properties of materials, which in this case was electrical conductivity. The study contains the analysis of the for...

By M Skowron, P Syrek, A Surowiak

A new, freely programmable, scalable control system for academic research purposes was developed. The intention was, to have a control unit capable of handling multiple PT1000 temperature sensors at reasonable accuracy and temperature range, as well as digital input signals and providing powerful output signals. To take full advantage of the system...

By S Epple, R Jung, K Jalba, V Nasui