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Direct measurings represent the most reliable way of ambient air quality assessment. However, the measuring scope is quite often limited by purchase expenses, appliance and maintenance of analyzers. Therefore, in some cases, the application of different dispersion models can provide reliable and necessary information. The possibility of modelling in the air quality management system through the simulation of nitrogen oxide (NOx) dispersion at a busy road in Zrenjanin is presented in this paper. The modelling was conducted using ADMS-Urban software. To assess the quality of modelled concentrations, a comparative analysis of the modelled measured and NOx concentrations was performed using sets of quality indicators which showed that in addition to certain limitations in the input data, the deviation error was within the legally prescribed limits. [ABSTRACT FROM AUTHOR]

This work is part of the INTEREG IPA CBC Romania Serbia project entitled RORS394 Know to Develop - Through knowledge to business and smart development of Banat. The project's objective was to increase employment opportunities and employability of young people through the creation of organizational and institutional conditions for cross-border and networked improvement of education, knowledge and skills that will meet the needs of the economy and labour market. One of the modules of the project refers to 3D scanning as a high-resolution and accurate recording of the objects in 3D space is of high importance for many subjects of different domains of interest such as monitoring landslides, archaeology, cultural heritage etc. Traditional techniques for 3D data acquisition either restrict the size of the scanned objects or impose demands on the stability and structure of the surface. On the other hand, various society fields demand realistic 3D city models. For urban planning or historical buildings even ancient fortresses, analysing in a 3D virtual reality world is much more efficient than imaging the 2D information on maps. For public security, accurate 3D building models are indispensable to make strategies during emergency situations. Navigation systems and virtual tourism also benefit from realistic city models. Manual creation of city models is undoubtedly a rather slow and expensive procedure, because of the enormous number of buildings and complexity of building shapes. The rapid development of cities also adds to the cost of manual city model updating. Nowadays, a lot of research has been done to automate the procedure of city reconstruction, and a number of approaches have been proposed. These approaches differ with respect to input data, automation level, and object representation. In this context terrestrial 3D imaging laser scanning forms a method to acquire a large number of precise data points in 3D space representing the surface of the objects under investigation. These scanners are an effective tool for the collection of data to create a digital elevation model of the topography of a site as well as of the surface of a single archaeological deposit. The acquired data can be used for documentation purposes only, but the further processing provides the possibility for virtual reality modelling for public presentation, restoration planning or virtual reconstruction. Laser scanning technology and the final deliverable, materialized as the three dimensional model of the terrain, emphasises the importance and the applicability of geodesy in giving proactive solutions to architectural and engineering problems. [ABSTRACT FROM AUTHOR]

Nowadays the need for renewable resources becomes more and more stringent. Biomass remains one of the most important sources of energy, being used directly or by chemical conversion processes in order to produce clean energy. Relative to this aspect, the present paper proposes the direct approach, by analyzing to biomass type materials (topinambur and Romanian hemp) in order to determine their physical and chemical characteristics and their potential use in combustion processes. [ABSTRACT FROM AUTHOR]

Today's lifestyle puts an increasing accent on internet resources. In order to increase its efficiency, the educational process should also include internet resources. This work presents different internet resources (online courses and tutorials, social media, online games) and analyses their efficiency in training students. [ABSTRACT FROM AUTHOR]

The continuous development of industry demands increasing amounts of energy. Hence, there is a quest for obtaining and promoting nonconventional technologies by renewable energy whichfuels the quest for non-conventional technologies used in the field of energy. There are international regulations concerning the management of energy resources in general, which can be applied in managing the renewable energy resources. Romania joined the international efforts in the area of promoting renewable energy resources. The targets assumed (24% of the total energy produced in Romania by 2020 should come from renewable sources) can be achieved if the current regulations and management methods are followed. [ABSTRACT FROM AUTHOR]

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