Browsing 3. Scientific Journals / Naučni i stručni časopisi by Author "Markovic, Dragan"
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Analysis of Economic Indicators for GPS Technologies Application in Agricultural Corporation Belgrade (PKB)
Markovic, Dragan; Krstic, Dragan; Simonovic, Vojislav; Markovic, IvanaThis paper examined the level of savings in the application of modern technical systems for satellite guidance and control over performing agricultural operations throughout the season. The exemplary property was Agricultural ... -
FEM Analysis of Protective Frame on Orchard Tractors in Rollover Case
Dragic, Marko; Dimic, Nikola; Markovic, Dragan; Simonovic, Vojislav; Markovic, IvanaThis paper describes a design of the protective frame orchard tractors and tractor power up to 65kW for use in fruit production on sloping ground for mechanical harvesting (shaking) of stone fruits. Shown protective frame ... -
Headspace Solid Phase Microextraction in Pesticide Residues Analysis: 1. Optimisation of Extraction Conditions
Djurovic, Rada; Milinovic, Jelena; Markovic, Mirjana; Markovic, DraganThe method of headspace solid phase microextraction (HS/SPME) was successfully used in a simultaneous multicomponent analysis of hexachlorobenzene (HCB), tefluthrin, heptachlor, aldrin, chlorpyrifos, fenthion and bifenthrin ... -
Headspace Solid Phase Microextraction in Pesticide Residues Analysis: 2. Apple Samples
Djurovic, Rada; Milinovic, Jelena; Markovic, Mirjana; Markovic, DraganHeadspace solid phase microextraction method (HS/SPME), optimised previously for pesticide water solutions, was applied to trace residues of the pesticides chlorpyrifos, fenthion and bifenthrin in apple samples. One-hour ... -
Research of Seeding Distance Uniformity by Response Surface Methodology
Markovic, Dragan; Cebela, Zarko; Simonovic, Vojislav; Markovic, IvanaThe subject of this paper is to optimize the uniformity seeding distances using response surface methodology and validated optimal level variables. Variables are modeled as a vacuum on the seed plate, diameter planting ...