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 Corina Monica Pop, Adina Pop Vadean, Ioana Tașcu-Stavre

Heat exchangers are one of the most used and important devices in modern industry, as well as in residential sector. There is no ideal heat exchanger. As a result, there are many types of heat end mass exchangers. The design differs according to the capacity, temperature, pressure, type of work fluids and other factors. As several different types o...

By Predrag Miodrag Živković, Mladen Tomić, Mića Vukić

This project showcases the effects of the homogenization treatments applied to 2724 cast aluminum alloy semi-products, as well as the results regarding the resistance and plasticity improvement of these semi- products. These results have proven the validity of the initial processing hypothesis, which states that certain modifications of the crystal...

By Aurica Pop, Gheorghe Iepure

The toroidal cutting edge, also called corner cutter, is a combination of the cylindrical-frontal milling cutter and the spherical head milling. The paper follows at generating the optimal trajectory for making the finished product with the toroidal cutting edge without having to use the flat end mill and the ball nose end mill. This trajectory is ...

By Andrei Raul Oșan, Marius Cosma, Vasile Năsui

In order to solve complex decision-making problems, MCDM has recently known a fast development. One of the main differences between the decision models consists in the way of evaluating the numeric and the non-numeric data that interfere while solving a problem. If the number of the criteria is not high and the evaluation contains both quantitative...

By Adela Berdie, Adeline Berdie, Sorin Jitian, Mihaela Osaci, Cristian Barz

This study, using the theory of electric circuits, shows the right definition of scattering parameters (S- parameters) for any two-port electric circuit and the practical way to use these parameters in streamline the processes of information transmission and propagation, and the transfer of the active power from the electric quadrupole input (outpu...

By Erdei Zoltan, Mihai Iordache, Dragoș Niculae, Cristian Barz, Alexandru Grib

When mobbing has already begun, it may be difficult to keep it under control if immediate action is not taken. Trusted advisers and mediators can play a very important role. To intervene early, the supervisor must be able to read the first signs of mobbing process in development. Top management can be to appoint one or more persons in the organizat...

By Vesna Rodic, Brana Komljenovic

Usually, the international Projects are of greater importance and with greater founding than national projects, involve multiple partners from different countries and are subject of nationals and international controls. The paper underline responsibilities of the management team both to the Project Contract and to the national laws requirements, re...

By Anamaria Dăscălescu, Miorița Ungureanu

The principles of component-oriented hybrid modelling of complex dynamical systems based on the Python language and its SymPy and SciPy libraries have been proposed. The Python-classes that allow you to create the models in Python without the need to study and apply specialized modelling languages have been developed. These classes can also be used...

By Kopei Volodymyr Bogdanovich, Vitalii Georgievich Panchuk, Oleh Romanovich Onysko, Oleh Romanovich Onysko

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