Research on the influence of moulding-casting technology on the quality of castings
The quality of castings has a particularly role in the Romanian foundries. In this context, quality assurance is the overall objective of the foundries. The paper presents the critical analysis performed on moulding- casting technology of the type Lifting mechanism. This casting is a subset of the lifting and rotating mechanism of the furnace vault...
By A Josan, C Pinca Bretotean, S Raţiu, E Ardelean, M Ardelean
Reducing emissions by using special air filters for internal combustion engines
This paper presents the experimental methodology to carry out functional performance tests for an air filter with a particular design of its housing, generically named Super absorbing YXV "Air by Corneliu", patented and homologated by the Romanian Automotive Registry, to which numerous prizes and medals were awarded at national and international in...
By C Birtok-Băneasă, S A Raţiu, V Alexa, A L Crăciun, A Josan, A Budiul-Berghian
Audit in public administration's information systems – External or internal?
Audit of the information system, thanks to the increased use of ICT and related cyber-crime, becomes a very important process in modern companies and institutions. It is usual to engage or outsource a third party for independent financial audit. But what about auditing of the information system of public administration institutions? This paper give...
By D Drljača, B Latinović
Particulate matter urban air pollution from traffic car
The particulate matters (PM) are very important compounds of urban air pollution. There are a lot of air pollution sources who can generate PM and one of the most important of them it is urban traffic car. Air particulate matters have a major influence on human health so everywhere are looking for PM reducing solutions. It is knows that one of the ...
By G M Filip, V M Brezoczki
A combined approach of AHP and TOPSIS methods applied in the field of integrated software systems
Adopting the most appropriate technology for developing applications on an integrated software system for enterprises, may result in great savings both in cost and hours of work. This paper proposes a research study for the determination of a hierarchy between three SAP (System Applications and Products in Data Processing) technologies. The technol...
By A D Berdie, M Osaci, I Muscalagiu, C C Barz
Critical study of current situation of Vrănicioara tailing pond on Cavnicului Valley, risks and consequences
In northern Romania, there are numerous tailing ponds, resulting from mining activities that present significant environmental risks. Some of them, including Vrănicioara tailing pond, were the subject of technical projects for ecological rehabilitation. Vrănicioara pond is located on the right side of Cavnic Valley, downstream Cavnic town, about 4 ...
By I Bud, S Duma, D Gusat, I Pasca, A Bud
Harvesting energy an sustainable power source, replace batteries for powering WSN and devices on the IoT
Harvesting energy from nonconventional sources in the environment has received increased attention over the past decade from researchers who study these alternative energy sources for low power applications. Although that energy harvested is small and in the order of milliwatt, it can provide enough power for wireless sensors and other low-power ap...
By A Pop-Vadean, P P Pop, T Latinovic, C Barz, C Lung
Factors that increase the electric field of the dielectric barrier ozone generators
The dielectric barrier discharge cell (DBDC), also called ozone cell, is the main component of the ozone generators widely used. When the cell is powered with a high voltage value (> 5 kV) in the dielectric gas, arises a high intensity electric field that influences ozone generation processes by silent discharge also called dielectric barrier di...
By I Ganea, R Morar
Influence of the solid dielectric over the electric field from the ozone cell gap with double dielectric barrier
The distilled water has the advantage of high value dielectric constant (Ɛ = 81) in relation to ceramic glass materials, currently used for constructing the dielectric barrier. It was necessary to build a thin-walled enclosure of solid insulating material that contain distilled water to achieve a dielectric barrier. This was necessary to avoid expo...
By I Ganea
The current challenges of teaching ESP
Although the status of lingua franca can easily be claimed by English nowadays, there are always plenty of challenges involved in the process of teaching a foreign language. The simple mastering of the four skills (reading, writing, listening and speaking) and the acquisition of general grammar and vocabulary may not be enough in some circumstances...
By A Fălăuş