Composites materials for friction and braking application
The brake pads are an important component in the braking system of automotive. Materials used for brake pads should have stable and reliable frictional and wear properties under varying conditions of load, velocity, temperature and high durability. These factors must be satisfied simultaneously which makes it difficult to select effective brake pad...
By A L Crăciun, C Pinca-Bretotean, C Birtok-Băneasă, A Josan
The heavy metal ions (Cu2+, Zn2+, Cd+) toxic compounds influence on triticale plants growth
The presence of the heavy metals toxic compounds (CuSO4 5H2O, ZnSO4 7H2O and 3CdSO4 8H2O) in water and soil can be observed by their negative effects on the germination and growth process for different vegetable (barley, oat, maize) who are used for human and animal consumption. This paper it aims the determination of germination and growth inhibit...
By V M Brezoczki, G M Filip
The possibility of developing hybrid PV/T solar system
An alternative and cost-effective solution to developing integrated PV system is to use hybrid photovoltaic/thermal (PV/T) solar system. The temperature of PV modules increases due to the absorbed solar radiation that is not converted into electricity, causing a decrease in their efficiency. In hybrid PV/T solar systems the reduction of PV module t...
By M Dobrnjac, P Zivkovic, V Babic
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
Influence of typical faults over the dynamic behavior of pantograph- catenary contact force in electric rail transport
The quality of electric energy capture and also the equipment operational safety depend essentially of the technical state of the contact line (CL). The present method for determining the technical state of CL based on advance programming is no longer efficient, due to the faults which can occur into the not programmed areas. Therefore, they cannot...
By S Rusu-Anghel, A Ene
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
RELIABILITY OF THE SHORT DARK TRIAD (SD3) AND HONESTY- HUMILITY HEXACO-PI-R-60 SUBSCALE ON A SAMPLE OF PRISONERS
The Dark Triad of Personality includes three dimensions related to antisocial and manipulative behavior: Machiavellianism, subclinical narcissism, and subclinical psychopathy. The HEXACO personality model proposed honesty-humility as one of the basic personality dimensions, which shares a lot of variance with the Dark Triad. This research deals wit...
By Mirjana Karać
SEX DIFFERENCES IN RELATIONSHIPS BETWEEN SEXUAL COMPULSIVITY AND THE ONSET AND FREQUENCY OF MASTURBATORY AND INTERPERSONAL SEXUAL ACTIVITIES
On the sample of 1711 students (649 males and 1062 females) from Serbia (N=570) and BiH (N=1141), ranging from 19 to 25 years of age (M=21.88, SD=1.67), the relationships between sexual compulsivity levels and the onset and frequency of masturbatory and interpersonal sexual activities were explored. The Sexual Compulsivity Scale (SCS) of Kalichman ...
By Džanan Berberović
EFFECTIVENESS, ТHE EFFECTIVENESS OF ECOLOGICAL HEATING SYSTEMS
This paper treats a priori (the reason why) ecological heating systems using boilers with complete combustion, with the main objective function of significant material cost savings and increase the level of effectiveness of the system. Burning modulated and cheapest biomass-wood bark (encrustation), and other wood waste which are directly wit...
By Бoрo Дaкић, Пaнтeлиja Дaкић, Бeсим Грoздaнић
IMPORTANCE OF PREVENTIVE MAINTENANCE FOR OPERATIONAL AVAILABILITY OF TECHNICAL SYSTEMS IN MODERN BUSINES
Modern enterprises have recognized the necessity of quality and efficient management of maintenance in technical systems, but also its role in achieving competitive advantage. Since the company’s efficiency on the market depends on its internal effectiveness, there is no doubt that the management of maintenance is an indispensable part ...
By Edin Strukan