Engeneering for Rural Development 2009 - Proceedings

8^th International Scientific Conference

Engineering for Rural Development

28.-29.05.2009 Jelgava, LATVIA

Proceedings	Programme	Organizers	Sponsors
Contents of Proceedings of 8^th International Scientific Conference ENGINEERING FOR RURAL DEVELOPMENT May 28 – 29, 2009 ISSN 1691-5976 Ilmars Dukulis, Vilnis Pirs, Zanis Jesko, Aivars Birkavs, Gints Birzietis Latvia University of Agriculture TESTING OF AUTOMOBILE VW GOLF OPERATING ON THREE DIFFERENT FUELS Vilis Dubrovskis, Imants Plūme Latvia University of Agriculture FORECASTING OF GHG EMISSIONS FROM BIOMASS ENERGY USAGE IN LATVIA Telse Vogel, Matthias Ahlhaus, Mirko Barz University of applied science of Stralsund, Germany OPTIMISATION OF THE BIOGAS PRODUCTION FROM GRASS BY DRY-WET FERMENTATION Aigars Plume, Gundega Dinaburga, Janis Kopmanis, Dainis Lapins, Andris Berzins Latvia University of Agriculture EFFECT OF SOIL DEEP PLOUGHING ON WINTER WHEAT DEPENDING ON SOIL CONDITIONS Ansis Saliņš, Juris Priekulis Latvia University of Agriculture RESEARCH IN MIXED FEED DISTRIBUTION LINE ON LATVIA UNIVERSITY OF AGRICULTURE TRAINING AND RESEARCH MILK FARM "VECAUCE" Armīns Laurs, Juris Priekulis, Mārtiņš Puriņš Latvia University of Agriculture STUDIES OF OPERATING PARAMETERS IN MILKING ROBOTS Arvids Vilde, Adolfs Rucins, Edmunds Pirs Latvia University of Agriculture IMPACT OF SOIL HUMIDITY ON THE DRAFT RESISTANCE OF THE PLOUGH BODY Jānis Latvietis, Juris Priekulis Latvia University of Agriculture FEED COSTS FOR COWS IN RELATION TO MILK YIELD AND FEEDING Jiří Mašek, Milan Kroulík and František Kumhála Czech University of Life Sciences BENEFITS OF CONTROLLED TRAFFIC FARMING Orlando - Sorin Opris, Simion Popescu Transilvania University of Brasov THEORETICAL AND EXPERIMENTAL RESEARCHES CONCERNING THE INFLUENCE OF THE VERTICAL OSCILLATIONS OF THE PRECISION SEEDER UNITS ON THE DRILLING PARAMETERS Petr Heřmánek, Adolf Rybka, Ivo Honzík, Bohuslav Jošt Czech University of Life Sciences HOP PROCESSING SYSTEM INNOVATION WITH FINAL PRODUCT QUALITY INCREASING Oliver Sada, Boris Reppo Estonian University of Life Sciences EFFECT OF ANIMAL KEEPING TECHNOLOGIES ON THE PIGSTY INNER CLIMATE IN SUMMER Vadim Kitikov, Eugene Ternov The Republican Unitary Enterprise "Scientific-Practical Centre of the National Academy of Sciences of Belarus of Agriculture Mechanization" COMPARATIVE TECHNICAL AND ECONOMIC ANALYSIS OF COMPLEX DAIRY MANAGEMENT SYSTEMS ON THE BASIS OF RADIO-FREQUENCY AND INFRA-RED IDENTIFICATION OF ANIMALS FOR MILKING PARLOR OF FOREIGN MANUFACTURE Juris Priekulis, Jânis Latvietis Latvia University of Agriculture ECONOMIC PROFITABILITY OF MILK PRODUCTION Emīls Pudāns, Guntars Uzkliņģis Latvia University of Agriculture DETERMINATION OF GEOMETRIC AND KINEMATIC PARAMETERS OF CHAIN WITH ROLLING FRICTION JOINTS Volodimir Bulgakov¹, Semjons Ivanovs² ¹National Agrarian University of Ukraine, ²Latvia University of Agriculture MATHEMATICAL SIMULATION OF OSCILLATIONS OF TOWED AGRICULTURAL AGGREGATES Aleksandras Kirka Lithuanian University of Agriculture INVESTIGATION OF PARAMETERS OF ACCUMULATOR TRANSMISSION OF SELF-MOVING MACHINE Alexandr Arshanitsa¹, Inesa Barmina², Galina Telysheva¹, Tatjana Dizhbite¹, Anna Andersone¹, Maija Zake², Ilmars Grants² ¹Latvian State Institute of Wood Chemistry, ²Institute of Physics THE COMPOSITION AND FUEL CHARACTERISTICS OF NON-HYDROLYZED RESIDUES FROM WHEAT STRAW ETHANOL PRODUCTION Antanas Juostas, Algirdas Janulevičius Lithuanian University of Agriculture INVESTIGATION OF INTERACTION BETWEEN TRACTOR LOAD AND DATA COLLECTED IN THEIR MODULES Arne Kyyt, Jyri Olt Estonian University of Life Sciences PRODUCTION OF VEGETABLE OIL AS FUEL Dainis Berjoza, Arnis Mickevičs Latvia University of Agriculture RESEARCH IN PARAMETERS OF BRAKING FOR AUTOMOBILES Gunārs Brēmers¹, Gints Birzietis¹, Anita Blija¹, Arnolds Šķēle¹, Aleksejs Daņiļevičs² ¹Latvia University of Agriculture, ²Latvia University BIOETHANOL CONGRUENT DEHYDRATATION Gvidonas Labeckas, Stasys Slavinskas Lithuanian University of Agriculture PERFORMANCE AND EMISSION CHARACTERISTICS OF OFF-ROAD DIESEL ENGINE OPERATING ON RAPESEED OIL AND PETROL BLENDS Ilmars Dukulis, Aivars Birkavs, Gints Birzietis, Vilnis Pirs Latvia University of Agriculture ADAPTING OF AUTOMOBILE VW GOLF FOR USING PURE RAPESEED OIL AS A FUEL Ilmars Dukulis, Vilnis Pirs, Zanis Jesko, Aivars Birkavs, Gints Birzietis Latvia University of Agriculture DEVELOPMENT OF METHODICS FOR TESTING AUTOMOBILES OPERATING ON BIOFUELS Nikolajs Kopiks, Dainis Viesturs Latvia University of Agriculture THE FLEET OF TRACTORS ON THE FARMS OF LATVIA AND THE TRENDS OF ITS DEVELOPMENT Pavels Karabesko, Maija Strele, Rasma Serzane, Mara Jure Riga Technical University ENVIRONMENTALLY FRIENDLY PRODUCTION TECHNOLOGY OF BIODIESEL Simion Popescu, Nastase Sutru Transilvania University of Brasov CONTRIBUTIONS TO THE STUDY OF THE DYNAMICS OF AGRICULTURAL TRACTORS EQUIPPED WITH FRONT-END LOADER AND REAR FORKLIFT LOADER Tālis Paeglis, Pāvels Karabeško, Inese Mieriņa, Rasma Seržane, Maija Strēle, Velta Tupureina, Māra Jure Riga Technical University COMPOSITIONS OF HYDRAULIC FLUIDS BASED ON RAPESEED OIL AND ITS DERIVATIVES Aivars Aboltiņš, Jānis Palabinskis, Aigars Lauva, Guntis Rušķis Latvia University of Agriculture THE INVESTIGATIONS OF AIR SOLAR COLLECTOR EFFICIENCY Aivars Aboltiņš, Jānis Palabinskis, Aigars Lauva, Guntis Rušķis Latvia University of Agriculture THE STEEL-TINPLATE ABSORBERS INVESTIGATIONS IN AIR SOLAR COLLECTOR Aivars Kaķītis¹, Mareks Šmits¹, Ina Belicka² ¹Latvia University of Agriculture, ²State Stende Cereal Breeding Institute SUITABILITY OF CROP VARIETIES FOR HEAT ENERGY PRODUCTION Andis Lazdiņš¹, Henrik Von Hofsten², Dagnija Lazdiņa¹, Valentīns Lazdāns¹ ¹Latvian State Forestry Research Institute "Silava",²The Forestry Research Institute of Sweden (Skogforsk) PRODUCTIVITY AND COSTS OF STUMP HARVESTING FOR BIOENERGY PRODUCTION IN LATVIAN CONDITIONS Andrievs Ilsters, Imants Ziemelis, Igors Kristutis Latvia University of Agriculture POSIBILITY OF HEAT PUMP USE FOR PIGLET RESTING PLACE HEATING Ēriks Kronbergs, Mareks Šmits Latvia University of Agriculture CUTTING PROPERTIES OF COMMON REED BIOMASS Imants Ziemelis, Liene Kancevica, Zanis Jesko, Henriks Putans Latvia University of Agriculture CALCULATION OF ENERGY PRODUCED BY SOLAR COLLECTORS Ilze Pelēce, Uldis Iljins, Imants Ziemelis Latvia University of Agriculture MEASUREMENTS AND THEORETICAL CALCULATIONS OF DIFFUSED RADIATION AND ATMOSPHERE LUCIDITY Jüri Olt, Mihkel Laur Estonian University of Life Sciences BRIQUETTING DIFFERENT KINDS OF HERBACEOUS BIOMATERIAL Maris Daugavietis, Mudrite Daugaviete, Janis Bisenieks Latvian Forestry Research Institute "Silava" THE MANAGEMENT OF GREY ALDER (ALNUS INCANA MOENCH.) STANDS IN LATVIA Valery Karpov, Alexander Kotov St.-Petersburk State Agrarian University EFFECTIVE ENERGETICS FOR RURAL LOCALITY (TERRITORIES) Vilis Dubrovskis, Imants Plūme, Vladimirs Koteļeņets Indulis Straume Latvia University of Agriculture INVESTIGATION OF BIOGAS PRODUCTION FROM RELATIVELY DRY BIOMASS Vilis Dubrovskis, Aleksandrs Adamovičs, Imants Plūme Latvia University of Agriculture BIOGAS PRODUCTION FROM REED CANARY GRASS AND SILAGE OF MIXED OUTS AND BARLEY Aivars Kaķītis Imants Nulle Latvia University of Agriculture ELECTROSTATIC BIOMASS MIXING Vilis Dubrovskis, Imants Plume, Indulis Straume Latvia University of Agriculture INVESTIGATION OF BIOGAS PRODUCTION FROM MINK AND COW MANURE Arvids Vilde¹, Aivars Cesnieks¹, Janis Kleperis², Vadims Ogorodniks², Sandris Cesnieks¹ ¹Latvia University of Agriculture, ²Institute of Solid State Physics of University of Latvia EQUIPMENT FOR ECOLOGICAL GRAIN DRYING WITH MICROCLIMATE MONITORING AND DISTANCES CONTROL Alexandra Nováková, Milan Brožek Czech University of Life Sciences Prague BONDING OF NON-METALLIC MATERIALS USING THERMOPLASTIC ADHESIVES Jurijs Meitalovs, Aleksejs Histjajevs, Egils Stalidzāns Latvia University of Agriculture AUTOMATIC MICROCLIMATE CONTROLLED BEEHIVE OBSERVATION SYSTEM Gatis Muiznieks, Eriks Gerins Riga Tehnical University ANALYSIS OF POSSIBILITIES TO IMPROVE THE SURFACE PHYSICAL MECHANICAL PROPERTIES OF ROTORS OF SCREW TYPE PUMPS Gunars Verdins, Daina Kanaska Latvia University of Agriculture THE CHANGES OF PHYSICALLY-MECHANICAL CHARACTERISTICS AND STRUCTURE OF STEELS, CUT BY PLASMA Jānis Greivulis, Jānis Doniņš Riga Technical University PULSE DENSITY MODULATION CIRCUIT Jānis Fridrihsons Latvia University of Agriculture HALF - AUTOMATIC COMBINED HEATING AND IRRADIATION DEVICE FOR PIGLETS Jānis Fridrihsons, Ainārs Galiņš Latvia University of Agriculture THE EFFECTIVE ELECTRICAL LIGHTNING SYSTEM Jānis Voitkāns, Andris Voitkāns, Ilmārs Osmanis Riga Technical University INVESTIGATIONS ON ELECTRICAL FIELDS AND CURRENT FLOW THROUGH SYSTEM OF ELECTRODE WITHIN ELECTRODE Dalia Kasperiūnaité¹, Juozas Navickas¹, Imants Ziemelis² ¹Lithuanian University of Agriculture, ²Latvia University of Agriculture THERMAL AND ABSORPTION PROPERTIES OF UNBURNT CLAY SAMPLES Milan Brožek, Alexandra Nováková Czech University of Life Sciences Prague SOLDERING OF STEEL USING SOFT SOLDERS Uldis Antonovičs, Jānis Greivulis Riga Technical University THE ROTATION AND OSCILLATING MODES OF ASYNCHRONOUS MOTOR SUPPLIED FROM SINGLE-PHASE NET Vadim Ogorodnik¹, Janis Kleperis¹, Albert Kristinsh¹, Irina Gvardyna¹, Aivars Cesnieks², Arvids Vilde² ¹Institute of Solid State Physics of University of Latvia, ² Research Institute of Agricultural Machinery of the Latvia University of Agriculture AUTOMATED CONTROL OF THE GRAIN DRYING PROCESS Viesturs Bražis, Jānis Greivulis Riga Technical University THE APPLICATION OF SUPERCAPACITOR ENERGY STORAGE DEVICES IN INDUCTION DRIVES Raimunds Selegovskis, Indulis Straume Latvia University of agriculture THE MODELLING OF CONTROL SYSTEM OPERATION OF COMBINED POWER AND HEAT PRODUCING PLANT Andres Menind, Jüri Olt Estonian University of Life Sciences BIOGAS PLANT INVESTMENT ANALYSIS, COST BENEFIT AND ITS MAIN FACTORS Larisa Maļinovska, Silvija Štrausa, Anna Vintere, Anda Zeidmane Latvia University of Agriculture HOW BEST TO EDUCATE THE FUTURE ENGINEERS Janīna Osnovina Daugavpils University ABOUT TECHNICAL DRAWING'S COMPOSITION Larisa Maļinovska, Anete Mežote Latvia University of Agriculture DEVELOPMENT OF COMPETENCES NECESSARY FOR ENGINEERS IN THE PROCESS OF STUDIES Andris Upītis, Miervaldis Kristapsons, Imants Ziemelis, Arnolds Šķēle Latvia University of Agriculture LOCAL RESOURCES IN THE SYSTEM OF POWER SUPPLY TO THE RURAL REGION Pavels Patlins Riga Technical University DELIVERY PROBLEMS SOLUTION FOR SMALL-CARGO PHYSICAL DISTRIBUTION CONTROL Kaspars Vārtukapteinis, Antoņina Čukure Latvia University of Agriculture DEVELOPMENT OF COLLABORATION WITH GRADUATES THROUGH REUNION