Now showing items 384-403 of 579

  • Natural Ventilation Optimisation of Liverstock Buildings by Numerical Simulations 

    Ecim, Olivera; Stamenov, Vasil; Todorovic, Marija; Topisirovic, Goran
    Numerical simulations and computational fluid dynamics can be usefully integrated with architectural modeling, providing designers with a powerful single CFD based architectural modeling and design framework. This framework ...
  • New Generation Harvesters in Corn Harvesting 

    Djevic, Milan; Miodragovic, Rajko; Mileusnic, Zoran
    Introduction of new generation harvesters is analyzed through efficiency, losses and quality of harvested crop. Purpose of the investigation is analysis of new generation harvesters working parameters in corn harvesting. ...
  • A New Metod of Maximum Furrow Thickness Determination for Rotary Tiller 

    Radomirovic, Dragi; Ponjican, Ondrej; Bajkin, Andjelko; Zoranovic, Miodrag
    Precision determination maximal of furrow thicknes was performed over function "f". Function "f" was defined as distance between the point on the soil surface and the place of previous blade entrane (for the same rotation ...
  • New Technologies in Fruit Color Sorting 

    Markovic, Dragan; Veljic, Milan; Cebela, Zarko
    This paper concentrates on application of color sorting machines for fruit sorting. Paper shows in details transport system through sorting machine, reject system, visual system (cameras and lasers), data processing ...
  • Nitrous Oxide and Carbon Dioxide Concentration in Farrowing Pens with Permanent Limited Range of Motion for Lactating Sows 

    Dubenova, Monika; Galik, Roman; Mihina, Stefan; Sima, Tomas
    Nitrous oxide (N2O) and carbon dioxide (CO2) are two of the most important gases causing global warming. Production of mentioned gases is pig housing considerable. The aim of the paper was a comparison of the N2O and CO2 ...
  • Non-Destructive Quality Assessment of Fruits Using Optical Method 

    Felfoldi, Jozsef; Gillay, Zoltan; Muha, Viktoria
    The importance of the non-destructive methods in the quality assessment of the horticultural produces is increasing continuously. Application of these methods is advantageous from the garden to the market, because they ...
  • A Nonlinear Fixed Capital Growth Model in Agriculture 

    Jablanovic, Vesna
    The basic aim of this paper is to set up a nonlinear fixed capital growth model in agriculture. This paper suggests conclusion for the use of the fixed capital growth model in agriculture in predicting the fluctuations ...
  • Numerical Prediction of Natutral Ventilation Flow Field in Livestock Buildings 

    Topisirovic, Goran; Ecim-Djuric, Olivera
    This paper deals with three dimensional flow fields of livestock buildings prediction by numerical simulations and computational fluid dynamics - CFD. Flow field investigation is based on analysis of all relevant parameters ...
  • Numerical Simulation of Greenhouses Heat Load 

    Ecim-Djuric, Olivera; Milanovic, Predrag; Markovic, Tijana
    The paper described the process of solving partial differential equations of heat conduction in the walls of the building envelope by numerical discretization in order to determine the precise unsteady temperature fields ...
  • Numerical Simulation of Tractor Operator Thermal Loads Caused by Solar Radiation 

    Ruzic, Dragan
    This paper deals with analysis of solar radiation direction and intensity influence on thermal flux on agricultural tractor operator's body surface. The analysis was carried out on a virtuel model of a tractor cab. The ...
  • OECD Codes for the Official Testing of Agricultural and Forestry Tractors will Be in Application in Serbia and Montenegro Again 

    Labovic, Vaso
    Official testing of agricultural and forestry tractors according the OECD Tractor Codes in Our Country was stopped in 1992 when SFRJ was excluded from membership of OUN. Activities to reactivate membership in OECD Tractors ...
  • Oil Rape Seed Harvesting Season 2005 in eastern Slavonia 

    Zimmer, Robert; Kosutic, Silvio
    Monitoring of oil seed rape harvest on family farm in Baranja showed that imported combines "A" and "B" with wheat headers were making equal losses on cutter bar (2,7 and 2,2%), losses on divider were even greater (4,8-5,2 ...
  • On the Applicabillity of the Single-Shaft Tractors Motocultivators in Serbia 

    Mileusnic, Zoran; Djevic, Milan; Miodragovic, Rajko; Petrovic, Dragan
    Concerning the limited area of arable land, exploitation of additional parcels and more intensive usage of exisiting land is hardly possible without intensive application of agricultural mechanization. Single-shaft ...
  • Operating Parameters of Dragged Combines „Volentieri VG 2000/2TA“ for Grapevine Harvesting 

    Manojlovic, Radomir; Mitrovic, Dragoljub; Bulatovic, Ivan; Urosevic, Mirko; Zivkovic, Milovan
    Harvesting represents one of the most challenging problems in managing vineyards. `Quality picking` is considered when it is done in the period when the grapes are suitable for its purposes, especially related with the ...
  • Operational Readiness as Criteria in Successful Seed Bed Cultivator Maintenance 

    Zivkovic, Dragan; Veljic, Milan; Markovic, Dragan
    In this paper is analsed seed bed cultivator editing maintenance as well as their operational readiness as criteria quality of successful for prophylaxislz maintenance. It is refere system of maintenance and energy of ...
  • Operational Readiness of the Hidraulic Sub-Aggregates Tractor-Cultivator 

    Veljic, Milan; Zivkovic, Dragan; Markovic, Dragan
    The paper consist specifics relating to the operation and maintenance of the hydraulic sub-aggregates tractor-cultivator. As the works in the seasonal character of agriculture and must be done in strictly defined time ...
  • Operationalisation of Tractor Fuel Consumption Economy 

    Bozic, Steva; Radojevic, Rade; Mileusnic, Zoran
    Fuel consumption in agriculture is on very high level. Even a small percentage of lowering fuel consumption can contribute to more successful management of agricultural enterprises. Reduced fuel consumption will, also, ...
  • Optical Sensors and their Application to Agricultural Machines 

    Radicevic, Branko; Vukic, Djukan; Ercegovic, Djuro; Oljaca, Mico
    In this paper are presented the characteristics and modes of construction of optical sensors, as well as typical measuring schemes with optical sensors. As an illustration of the application of optical sensors in ...
  • Optimal Parameters of Birds Foot Trefoil Harvesting 

    Ruzicic, Lazar; Milutinovic, Sinisa; Oljaca, Mico; Raicevic, Dragisa; Petrovic, Bora; Gligorevic, Kosta
    Optimal parameters of bird’s foot trefoil harvesting, as for most of grasses, require specific harvester technical and technological regulations and adjustments, adequate parameters for specific crop and working conditions. ...
  • Optimal Tractor Characteristics – Methodology and Analysis 

    Obradovic, Dragoljub; Teofanovic, Zarko; Dumanovic, Zoran
    Relevant factors needed to determine appropriate tractor, regarding technology (operations it has to perform), technical characteristics and economy were analysed in this paper. Methodology was presented for matching ...