Vojnotehnicki glasnik / Military Technical Courier

405-414

Authors: Jeremić Radun, Grbović Luka

As the other energetic substances, propellants are thermodynamically unstable. Thereby, during storing, they undergo chemical decomposition process (aging). Aging process are cause changing their functional properties and decreasing safe during storage because of potential hazard from self ignition. The decomposition mechanism of nitro esters and chemical stability phenomena of propellants are shortly discussed in these papers. The compared analysis of domestic and NATO methodology for investigation of chemical stability is realized. The observed deficiencies in up to now application of standard SNO 8069/91 are specially mentioned. As optimal solution of this problem it is supposed to accept corresponding STANAG standards that regulate this problematic.

424-434

Authors: Bukvić Aleksandar

In view of the fact that the reserves of petroleum, i.e. of fuels mineral origin are limited, the trend of research of renewable sources is more and more actual, with the aim to substitute conventional fuels. During the last years, the trend of substituting gasohol of mineral origin with the fuels deriving from vegetable culture is actual world-wide. EU directives are pointed out that is necessary to substitute fossil diesel with 0,75% of biofuel per year. In total consumption of fuels for transportation, to 2010 the biofuel should participate with 5,75% and with 20% to 2020. In this review are technology of biodiesel production and research diesel-motor S-44 with use diesel D-2 fuel, biodiesel RME and their mixtures. The results of the researches suggest that further improvement of such fuels is necessary, and particularly of the physical and chemical characteristics, according to the proposed standard/or biodiesel.

448-459

Authors: Vulićević Dobrivoje, Bobić Dušan

Planning time tables and exam terms in the high educational institutions is very complex and tiresome process. This paper presents information system for automatization of planning time tables and exam terms. Software provides input and saving of all relevant data concerning subjects, teachers, exams, terms (dates), specialities, student groups and quick presentation of different report types about time tables and exam terms. The software solution involves data base designed on "Microsoft SQL Server 2000"platform and user interface coded using "Microsoft Access 2000".

465-474

Authors: Radivojević Gordana

Dial-a-Ride system is a way of transport in which a transporter owns a fleet and realizes transport when and where customers ask for it. Different versions of this type of transportation are present in every day practice. The main problem here is route design and scheduling to realize the set of transport requests. In this paper it is described a heuristic algorithm for route design and scheduling for the static Dial-a-Ride problem. The developed algorithm can be applied in real situations.

489-501

Authors: Rajić Dušan, Žakula Božidar, Jovanović Velibor

The influence of industrial property on the technical-technological factor of defense is analyzed in this work. Technical innovations represent an important force of business development of the county and its defensive industry. In this work it is pointed out the necessity for different way of organization in the field of innovative work in which the tight connections are established between science, innovation and production.