The Effect of Hydrocarbon Fuels Variation Onto Flame Propagation in Particular Combustion Chamber with Strong Macro Flows
In this paper some results concerning fluid flow pattern and the evolution of flame propagation through unburnt mixture of two different hydrocarbon fuels in engine with strong macro flows were elucidated. Results presented in this paper were obtained by dint of multidimensional numerical modeling of reactive flows in very complex geometry of parti...
By Dragutinovic Sinisa, Masonicic Zoran, Dragan Nikolic
Methods of diagnosing the technical state of the gas-pumping unit GTC -25I of Nuovo Pignone company
The reliable operation of gas-pumping units (GPU) is due to their current technical state, which needs to be monitored in real-time, requires the use of effective methods for diagnosing GPU. A particularly relevant problem is the assessment of the current technical condition of the GPU GTC- 25I of Nuovo Pignone company, which is installed at the Ur...
By Leonid Zamikhovskiy, Volodymyr Pavlik
Using software quality models for the optimization of the business processes
Several software quality models have been developed, and the aim was to use them in the production so that it helps in delivering quality products. We will study how the implementation of a quality model helped the business process to improve. We will make a short review of the most used software quality models in production and how they optimize t...
By Sabo Cosmin, Diana Hajdu-Macelaru Mara
Estimation of coefficient of rolling friction by the evolvent pendulum method
A major objective of tribological researches is characterisation of rolling friction, due to various cases encountered in classical engineering applications, like gear transmissions and cam mechanisms or more recent examples met in bioengineering and biomedical devices. A characteristic of these examples consists in reduced dimensions of the contac...
By S Alaci, F C Ciornei, A Ciogole, M C Ciornei
Valuation of coefficient of rolling friction by the inclined plane method
A major objective of tribological researches is characterisation of rolling friction, due to various cases encountered in classical engineering applications, like gear transmissions and cam mechanisms or more recent examples met in bioengineering and biomedical devices. A characteristic of these examples consists in reduced dimensions of the contac...
By F C Ciornei, S Alaci, V I Ciogole, M C Ciornei
Statistical analysis using the multiple regression research in areas of the indefinite chilled cast–iron rolls manufacturing
To analyze the metallurgical processes is used, mainly, the statistical fundamental methods that permit to draw conclusions, from the observed values, about the repartition of the frequencies of various parameters, about their interaction, about verification validity of certain premises, and about the research of the dependencies among different pa...
By I Kiss, V Alexa, V G Cioată
Multivariate research in areas of phosphorus cast–iron brake shoes manufacturing using the statistical analysis and the multiple regression equations
The braking system is one of the most important and complex subsystems of railway vehicles, especially when it comes for safety. Therefore, installing efficient safe brakes on the modern railway vehicles is essential. Nowadays is devoted attention to solving problems connected with using high performance brake materials and its impact on thermal an...
By I Kiss, V G Cioată, V Alexa, S A Raţiu
System monitoring feedback in cinemas and harvesting energy of the air conditioning condenser
Our article monitors the degree of emotional involvement of the audience in the action film in theaters by measuring the concentration of CO2. The software performs data processing obtained dispersion sensors and displays data during the film. The software will also trigger the start of the air conditioning condenser where we can get harvesting ene...
By P P Pop, A Pop-Vadean, C Barz, T Latinovic, O Chiver
Integration of disabled people in an automated work process
Automation processes enter more and more into all areas of life and production. Especially people with disabilities can hardly keep step with this change. In sheltered workshops in Germany people with physical and mental disabilities get help with much dedication, to be integrated into the work processes. This work shows that cooperation between di...
By C K Jalba, A Muminovic, S Epple, C Barz, V Nasui
Simulation of defects on contactor coil
By definition, a coil is an electrical passive device, which have two terminals, use in electrical circuits to keep the power in magnetic field or to detect the magnetic fields. In winding process, is possible to appear different defects, or issues which can cause in time problems in functionality of products. In this paper, we will analyze two typ...
By Z Erdei, M Horgos, O Zetea