Analysis of the Commutation Overvoltage in Photovoltaic Power Generation
Photovoltaic (PV) power generation is not only clean green energy but is also especially appropriate for smart grids with distributed power generation. For a good exploitation of a PV system there are some regulations to be respected in accordance with local normative. Voltage and reactive power are two very stringent variables to be monitored. Dur...
By Liviu Neamt, Liviu Petrean, Olivian Chiver, Mircea Horgos, Sorin Sava, Alexandru Hotea
Information literacy in Bosnia and Herzegovina
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
Characteristics of the Bologna Process Implementation at the Students from the Faculty of Engineering Hunedoara
In order to access a Romanian academic performance at European level, it is necessary to reconsider integrated management within certain limits described by the Bologna Process. Although it has been over 15 years since the signing of the 1999 Bologna Declaration, we are still far away from being visible in the European Higher Education Area. On the...
By Mihaela Popa
Consideration of the actual stage of nanomaterials used in dentistry
The present paper is meant to be a short presentation of the actual stage of nanomaterials used in dentistry. It shows some theoretical considerations regarding characteristics of some nanomaterials used in dentistry. In recent years, increasing demands for dental reconstruction have led to the development of new materials that have multiple applic...
By Monica Pop Corina, Adina Pop Vadean, Ioana Tașcu-Stavre
Computer simulation of mold filling and crystallization for a two-blade drill bit steel billet
This work presents computer simulation of mold filling and crystallization for a two-blade drill bit steel billet. Drawing-based models of a two-blade drill bit and its detachable casting mold were developed by SolidWorks. The developed solid model was transferred to the ProCAST program. The preliminary stages of a drill bit cast molding computer s...
By Panchuk Vitaliy, Pavlo Prysiazhniuk, Tetiana Pryhorovska, Lubomyr Ropjak, Igor Kogut, Lubomyr Boruschak, Shulyar Iryna
Evaluation of the symbiosis between Rubus fruticosus and mycorrhizal fungi on the Bozanta Mare tailings pond in view of their use in ecological remediation
Waste resulting from mining activity is today one of the biggest environmental problems. The mine deposit on the Bozanta Mare site, due to the high content of heavy metals (Pb, Cu, Cd, Zn, Cr, Ni), is a difficult substrate for the installation of a vegetal carpet. Naturally, a small number of species have been installed on the soil with a high conc...
By Monica Liliana Marian, Oana Mare Roșca, Zorica Vosgan, Lucia Mihalescu
Design of adaptive controllers of automated control systems based on Simatic S7 hardware and software
The wide application of various regulators in automated control systems of technological objects determines the necessity to solve problems of constructing optimal, adaptive and with expanded functional capabilities of technological controllers. The toolkit for constructing technological controllers is Simatic S7 hardware devices (PLC S7-1200, Freq...
By Mykola Nykolajchuk
Applying Taguchi method to control the thermal expansion effect on machining process of aluminum alloy extruded profile
In this paper we present a technological problem encountered in the machining accuracy of the parts for aerospace, made of aluminium alloy extruded profile with 7 meters length. Those parts have very tight tolerances and on milling process appear deviation due to thermal expansion effect, that influence the repeatability of machining processes. Thr...
By Stefan Adrian Moldovan, Vasile Nasui, Marius Cosma
Impact of the facebook on costumers’s behavior
Everyday life without social media is nearly unimaginable in the digital era. Shortly after the emergence of the first social media, the others followed, experiencing an unprecedented expansion towards all the pores of society, entertainment, cultural, sports, and all forms of life in a modern, developed world. In a relatively short period of time,...
By Milic Mladen, D Djuranovic
Inspire Concept and Digital Data Models
Access to spatial data and services constitutes an important basis for environmental policies for all public authorities and is therefore a central aspect of the Infrastructure for spatial information in the European Community. Since the Community institutions and bodies in most cases have to integrate and assess spatial information from all the Me...
By Nikolina Drago Mijic, Gabor Bartha, Tijana M. Vujicic