The basic idea of inverse optimal control theory for nonlinear systems is to find a feedback control law based on a priori knowledge of a Control-Lyapunov function (CLF), that leads to Lyapunov stability of the system and minimizes a cost functional [1], [4]. The problem of inverse optimal control leads to the Hamilton-Jacobi-Bellman (HJB) equation...

By Nicolae Pop, Luige Vlădăreanu, Adrian I. Pop

Some considerations regarding different earthing electrodes types and arrangements are discussed. The computation of the earthing resistance and voltage distribution, the designing, installation and testing procedures are evaluated and compared. Typical mistakes, inadvertences, wrong or incomplete procedures are outlined, e.g. the soil resistivity ...

By Liviu Neamt, Horia Balan, Olivian Chiver, Alexandru Hotea

The fact that small enterprises in general and small business in bakery industries in special, are organized and lead by a particular style of management, based on own experience and very often intuition where financial resources to run a strong marketing campaign are limited brought to our attention the concept of social responsibility which offer...

By Gabriel Rus, Adrian D. Pop

The paper presents different types of controlling and monitoring an industrial process through web interface, depending on the connection types made by PLC or HMI used in the process. We can control the industrial processes through HMI interface directly on the web or phone if we use a Weintek HMI in connection with a SIEMENS PLC for manipulating T...

By Cristian Barz, Tihomir Latinovic, Paul Petrica Pop, Adina Pop-Vadean, Sinisa Dragutinovic, Felicia Dragan

Copper sulphate is used as an antifungal agent. Long-term applied fungicides allow the accumulation of copper in soil. This metal pollution is a problem when it enters in the food chains. In this study we investigated the effects of CuSO4 x 5H20 at different concentrations (0.05g/L; 0.1g/L; 0.5 g/L; 1 g/L) on seeds germination. The experiments have...

By Stela-Gabriela Jelea, Marian Jelea, Oana-Corina Jelea, Lucia Mihalescu, Zorica Voşgan

The brand name is the one element that consumers immediately recognize and which creates a connection in their minds with a certain product or a given producer. Modern businesses have discovered that there is no marketing strategy more powerful than coming up with a catchy name or image that will stick to the consumer’s mind and generate a ce...

By Demarcsek Ramona, Todea Luminita, Falaus Anamaria

Buildings fire prevention and protection requirements concern the personal safety of the occupants including the protection of material values and are the basic issues addressed by building regulations. How the material reacts in a fire and/or their fire resistances are two factors for choosing a building material and way the material is implemente...

By Dimitrijević Dragana Jovanović, Predrag Živković

The aim of this paper is to establish a link between the Big Data, the Internet of Things and the new industry, called Industry 4.0. The development of a modern economy is based on supply chains and logistics. Within each logistics are IT solutions. Some of the world's solutions are given in this paper and guidelines are set in the development of s...

By Tihomir S. Latinović, Dragana Preradovic, Cristian Barz, M. T. Latinović, Adina Pop-Vadean

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

U ovom naučnom rada naznačena je definicija samog pojma akreditacije kao i svih neophodnih funkcija koje laboratorija za metaloprerađivačku proizvodnju mora posjedovati da bi se mogla akreditovati. Navedne su osnovne smjernice i proces akreditacije laboratorija za metaloprerađivačku proizvodnju. Navedeni su osnovni elementi standarda koje je neopho...

By Veljko Vuković, Ljubica Šukalo, Dejana Ižaković