Steganography is a technique of hiding secret information into an innocent looking container. Although a large number of steganography techniques exist, there is a constant need for new ones because they have a relatively short lifespan, being constantly defeated by steganalysis methods. Least Significant Bit substitution (LSB) is one of the ...

By Ovidiu Cosma

 The special interest shown recently in Blockchain and Internet of Things highlighted the possibility of implementing distributed functionalities in nodes as close as possible to the source of data. The paper discusses advantages and challenges of blockchain technology to enable autonomy in Internet of Things, focused on traffic performance mo...

By Costea Cristinel, Adrian PETROVAN

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

Lobbying is a term with multiple meanings, the origin of which is derived from the English word which means LOBY hall, where the talks were held. Over time, in modern society, are derived concepcts LOBBYING, meaning negotiation, and lobbyists, which means a person who negotiates. Lobby and advocacy resulting in the 17th century in Britaina in parli...

By Jaganjac Jasmin, Željko Kovačević, Aleksandra Pušara

Limited resourses of fosil fuels and the greenhouse effect imposed a need for constant researches in area of usage of renewable energy sources (RES) a long time ago. Goal of this researches is using renewable energy sources more often. One of the types of renewable energy sources in Serbia is nonwood biomass. Nonwood biomass has two big advantages....

By Jelena Nikola Janevski, Branislav Stojanovic, Predrag Zivkovic, Dragana Dimitrijevic

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

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

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

Nowadays, the rapid growth and globalization of worldwide workforce have strengthened the perception that English is the lingua franca of international professional communication. Success in business and technology depends on people’s ability to communicate at a personal and professional level beyond linguistic and cultural boundaries; implyi...

By Luminița Todea, Anamaria Fălăuș, Ramona Demarcsek

Electronic properties of pulsed laser deposited, nanoscale CeNi5 alloy layers, on a dielectric substrate are described using the complex dielectric function. This spectral behaviour is studied separately for the real part ε1 (the dielectric constant or dielectric permittivity) and imaginary part ε2 (the dielectric loss function) of ...

By Todoran Daniela, Radu Todoran, Zsolt Szakacs