Humble leaders are not, as one might think at first sight, servile, humble, with low selfconfidence and modesty which implies the denial of their own worth. On the contrary, they know exactly what their value is, but do not trump it. They know where their place in the organization is and what their purpose is in their lives and that of other...

By Benea Marius Calin, Benea Maria Laura

 A brief scientific review of the given topic is focused on the processing of basic elements in the preparation of the Business Plan of the Republic of Srpska Railways, JSC Doboj, with all the projected planned sizes of the railway traffic in the period of one business year. They are parameters through the economic effects participating in the...

By Biljana Blagojević Cvijanović, Nenad Cvijanović

 Epoxidized vegetable oils have seen increasing application diversity in chemical and polymer industry. They are mainly used as stabilizer and plasticizer for polyvinyl chloride (PVC). However, they are also promising intermediates for the production of other vegetable oil derivatives. Vegetable oils are epoxidized in the industry with in situ...

By Olga Govedarica, Milovan Janković, Snežana Sinadinović-Fišer, Vesna Teofilović, Mirjana Jovičić, Ayse Zehra Aroguz

Is the war over? Is its success measured by the number of victims or the consequences it has caused? Is art the only winner of any war because it is the only one showing both sides of the coin? It is ideologically colored, but not conflicted. It is rebellious, but not destructive. It is a luxury of leisured, but not just the empty decoration. It is...

By Dragana Rađenović

Energy efficiency is one of the priorities defined in the Energy Sector Development Strategy of the Republic of Serbia. For the successful realisation of any strategy, including energy sector development strategy, it is necessary to allocate financial resources. In the times recession and limited state budgets, it became necessary to look for new m...

By Mirjana Paunov

This paper presents a study of the fuel cell system performance operating at low pressure. A polymer electrolyte fuel cell (PEMFC) is analyzed in according with the possibility of using in transport applications. So, it begins with the description of a parametric model of the fuel cell which has been developed using a combination between empirical ...

By Radu Adrian Tirnovan, Constantin Pica, Maria Cristea, Cosmin Dărab

Science is developing rapidly and it is so fast that society can’t follow. The negative consequences of such a rapid development start to appear. First, developed countries can easily apply scientific achievements to improve the lives of their citizens, while developing countries live harder than 20 or 30 years ago. Second, pseudo-science app...

By Goran Kalinić

The paper approach some aspects of die design in various shape extrusion is quite complex and it is influenced by a variety of factors, which lead to increased mold performance in the extrusion process of high strength aluminum alloys. The analysis and the Solidworks computer program were used to analyze the extrusion of the shape from high strengt...

By Vasile Hotea, Jozsef Juhasz

Jerk, as the derivative of acceleration, is used more and more in the kinematic study of the systems characterised by short travels and requiring a high precision of positioning, including elevators, CNC machine tools, and industrial robots. The acceleration modeling using jerk variation serve as a basis for generating the functioning tahogrames of...

By Ioana Craciun, Miorita Ungureanu

The mining industry in Maramureș area was an important factor of economic and social progress in this zone. The gradual reduction of th mine activity, until its actual shutdown, has caused disturbances in the economic and social field. This type of industry was, and it continue to be, even in inactivity periods, a pollutant factor. Protecting the e...

By Octavia Domide, Gherasim Solovestru Domide