Engeneering for Rural Development 2008 - Proceedings

9^th International Scientific Conference

Engineering for Rural Development

27.-28.05.2010 Jelgava, LATVIA

Proceedings	Programme	Organizers	Sponsors
Contents of Proceedings of 9^th International Scientific Conference ENGINEERING FOR RURAL DEVELOPMENT May 27 – 28, 2010 ISSN 1691-5976 Guna Civcisa, Jolanta Janauska, Iveta Mezinska, Janis Mazais, Janis Mikelsons, Janis Rudnevs, Narimants Salenieks Riga Technical University Engineering education – new approach and new style Arvids Vilde, Dainis Viesturs, Semjons Ivanovs, Andrievs Ilsters, Imants Ziemelis, Ruta Balode Latvia University of Agriculture Contribution of the research institute of agricultural machinery during 50 years of its existence Volodimir Bulgakov¹, Semjons Ivanovs² ¹Ukrainian Academy of Agrarian Sciences; ²Latvia University of Agriculture, Research Institute of Agricultural Machinery Mathematical simulation of beet vibrational extraction Detlef Ehlert, Michael Heisig, Rolf Adamek Leibniz-Institute for Agricultural Engineering Potsdam-Bornim, Germay Assessment of a laser scanner on agricultural machinery Jiri Masek, Milan Kroulik, Frantisek Kumhala Czech University of Life Sciences Controlled traffic farming Juri Olt, Ulo Traat, Arne Kuut Estonian University of Life Sciences Maintenance costs of intensively used self-propelled machines in agricultural companies Miroslav Muller, Petr Valasek Czech University of Life Sciences Adhesive bonds degradation Adolf Rybka, Ivo Honzik, Petr Hermanek, Bohuslav Jost, Lenka Zampachova Czech University of Life Sciences Application boom for chemical protection of hops grown on low trellis systems Arvids Vilde, Dainis Lapins, Gundega Dinaburga, Adolfs Rucins, Sandris Cesnieks, Edmunds Pirs, Andris Berzins, Aigars Plume, Janis Kopmanis Latvia University of Agriculture Some investigations in precision agriculture Atanas Atanasov, Plamen Kangalov, Kaloyan Stoianov, Ivailo Angelov University of Rousse, Bulgaria Some aspects in preparation of transport and field operations on large bulgarian farms by using gps and google earth Aivars Aboltins, Janis Palabinskis, Guntis Ruskis Latvia University of Agriculture Usage of different materials in air heated solar collectors Teodor Akinfiev, Manuel Armada Technical University of Madrid, Spain Wheeled robot for rural environment Gundega Dinaburga, Dainis Lapins, Janis Kopmanis Latvia University of Agriculture Differences of soil agrochemical properties in connection with altitude in winter wheat Stanislaw Winnicki¹, Tomasz Kolodziejczyk¹, Romana Glowicka-Woloszyn², Andrzej Myczko¹, Barbara Musielska¹ ¹Instytut Technologiczno-Przyrodniczy w Falentach Oddzial Poznan, Poland; ²Uniwersytet Przyrodniczy w Poznaniu, Poland Behavior of cows and its consequences related to the use of milking robots Stanislaw Winnicki¹, Romana Głowicka-Woloszyn², Tomasz Kolodziejczyk¹, Waclaw Romaniuk¹, Robert Kantarowski² ¹Poznan Branch of the Institute of Technology and Life Sciences in Falenty, Poland; ²Poznan University of Life Sciences, Poland Comparison of tmr and pmr feeding systems Juris Priekulis¹, Andris Kurgs² ¹Latvia University of Agriculture; ²AKP GEA Westfaliasurge Ltd. Economically most efficient equipment in milking parlours Eugene V. Ternov The Republican Unitary Enterprise “Scientific and Practical Centre of the National Academy of Sciences of Belarus for Agriculture Mechanization” A dairy herd dynamic model as a basic tool in simulation of dairy husbandry technological advantages Armins Laurs, Juris Priekulis, Martins Purins Latvia University of Agriculture Research in time between milking interval and variability of milking frequency using milking robots Andrievs Ilsters, Viktorija Zagorska, Zanis Jesko Latvia University of Agriculture Warming of piglets resting places by air heat pump in dependence on outside air temperature Ivars Lusis, Vita Antane, Armins Laurs Latvia University of Agriculture Effectiveness of somatic cell count determination in the milking robots Ansis Salins, Juris Priekulis Latvia University of Agriculture Working efficiency of spiral conveyor in transportation of mixed feed Edmunds Visockis¹, Rasma Deksne¹, Erika Teirumnieka¹, Marina Kobakhidze² ¹Rezekne Higher Education Institution, Latgale Sustainable Development Research Institute, Latvia; ²Shota Rustaveli State University, Georgia Research of rain water using possibilities Arvids Vilde, Edmunds Pirs Latvia University of Agriculture Intermediate regularities on the energetical parametersof the tractor engines Aivars Aboltins, Dainis Berjoza, Vilnis Pirs Latvia University of Agriculture Theoretical model of exploitation of automobiles operated with bioethanol-gasoline mixture fuels Nikolajs Kopiks, Dainis Viesturs Latvia University of Agriculture Research into models of choice of tractor aggregates Janis Laceklis-Bertmanis, Edgars Repsa, Eriks Kronbergs Latvia University of Agriculture Simulation of pressure oscillation in hydraulic hitch-system Andris Linins, Dainis Berjoza Latvia University of Agriculture Experimental investigation in acceleration of vehicles Gunars Bremers¹, Gints Birzietis, Anita Blija¹, Arnolds Skele¹, Adolfs Rucins¹, Aleksejs Danilevics² ¹Latvia University of Agriculture; ²Latvia University Evaluation usability of water adsorption and rectification in dehydration of bioethanol Aivars Birkavs, Gints Birzietis, Ilmars Dukulis Latvia University of Agriculture Investigation of impact of biofuel blend on arctic diesel fuel properties Vladimirs Baks, Ilmars Dukulis Latvia University of Agriculture The specific peculiarities of rapeseed fuel usage depending on oil chemical structure Ruslans Smigins, Aivars Aboltins Latvia University of Agriculture Comparision of model calculations and experimental results of diesel engine fuelled with biodiesel Janis Mistris, Gints Birzietis Latvia University of Agriculture Most widespread car fuel systems in latvia Aleksandrs Gasparjans¹, Aleksandr Terebkov¹, Anastasia Zhiravetska² ¹Maritime Academy of Latvia; ²Riga Tehnical University, Latvia The application of the consumed current spectral analysis for the monitoring of bearing units of induction machines Janis Greivulis, Janis Donins Riga Technical University, Latvia Pulse density modulation circuit Nerijus Ciganas, Algirdas Raila Lithuanian University of Agriculture Analysis of heating value variations in stored wood Andris Sniders Latvia University of Agriculture Adaptive self-tuning up model for non-stationary process simulation Andris Upitis, Viktorija Zagorska, Miervaldis Kristapsons, Zanis Jesko Latvia University of Agriculture Local energy resources in the integrated system of energy production and use Ilze Pelece, Henriks Putans, Viktorija Zagorska, Liene Kancevica, Imants Ziemelis Latvia University of Agriculture Peculiarities of domestic water heating by solar collectors Ilze Pelece Latvia University of Agriculture Semi-spherical solar collector for water heating Vilis Dubrovskis, Imants Plume, Vladimirs Kotelenecs, Eduards Zabarovskis Latvia University of Agriculture Anaerobic digestion of sewage sludge Vilis Dubrovskis, Imants Plume, Janis Bartusevics, Vladimirs Kotelenecs Latvia University of Agriculture Biogas production from fresh maize biomass Janis Fridrihsons, Ina Alsina Latvia University of Agriculture Spectral illumination equipment for greenhouse plants Janis Fridrihsons, Aldis Lojans, Ainars Galins Latvia University of Agriculture Device of luminescent light bulbs with defected filaments Milan Brozek, Alexandra Novakova Czech University of Life Sciences Briquetting of chips from nonferrous metal Alexandra Novakova, Milan Brozek Czech University of Life Sciences Evaluation of helical springs Alexandru Muntean¹, Bohumil Havrland², Victor Pobedinsky¹, Tatiana Ivanova², Grigore Marian¹ ¹State Agrarian University of Moldova; ²University of Life Sciences Prague, Czech Republic Features of bio-briquettes pressing with the piston briquetting press Andrey Apalkov¹, Teodor Аkinfiev¹, Manuel Armada¹, Igor Odintsev² ¹Technical University of Madrid, Spain; ²A.A.Blagonravov Mechanical Engineering Research Institute, Moscow, Russia Automatic measurement of residual stresses in the repaired details of farming machines by the coherent optics method Jury Kalugin, Alexander Alifanov Baranovichi State University, Belarus Improving energy performance of equipment for production of peeled veneer Jaan Miljan, Mihkel Kiviste Estonian University of Life Sciences Influence of visual condition on residual flexural capacity of existing precast concrete panels Petr Valasek, Miroslav Muller Czech University of Life Sciences Possibilities of use of mechanical surface treatment waste in form of polymeric particle composite fillers Gunars Verdins, Daina Kanaska Latvia University of Agriculture Research in welded sieve qualities dependance on aspects of production technology Mareks Smits, Andris Kronbergs, Eriks Kronbergs Latvia University of Agriculture Herbaceos energy crop shredding size determination Emils Pudans, Guntars Uzklingis Latvia University of Agriculture Changes of rolling friction link chain step in link turning Aivars Kakitis, Imants Nulle, Dainis Ancans Latvia University of Agriculture Durability of the arranged structure biomass briquettes Olga G. Vetrova St.Petersburg State Polytechnic University, Russia Conferences and competencies: students conference as environment for competencies formation Vladimir Romanenko¹, Larisa Malinovska², Galina Nikitina³ ¹St-Petersburg State University of Technology and Design, Russia; ²Latvia University of Agriculture; ³St-Petersburg Branch of the Academy of Information Technologies in Education, Russia Some aspects of skills and competences in engineering education Galina Marchenko Horlivka State Pedagogical Institute of Foreign Languages, Ukraine Training teachers in ukraine Natasa Naprstkova Jan Evangelista Purkyne in Usti nad Labem, Czech Republic Students connecting to production problems resolutions in cad/cam area Kusmierczak Sylvia J. E. Purkyne University in Usti nad Labem, Czech Republic Creation study aids within the students works Uladzimir Zuyeu, Vasily Kachurka Baranovichi State University, Ukraine Designing a theoretical model of training engineers for ecologically safe industrial activities Anda Zeidmane, Inese Ozola Latvia University of Agriculture Inteligent use of energy in engineeering education Irena Katane Latvia University of Agriculture Competitiveness of personality as a new concept in modern education and pedagogy science Kaspars Vartukapteinis, Antonina Cukure, Janis Cukurs Latvia University of Agriculture First year student evaluation of study process at the faculty of engineering Evgeny E. Khazanov, Victor E. Khazanov North-West Research Institute of Agricultural Engineering and Electrification (SZNIIMESH) of the Russian Academy of Agricultural Sciences Procedures to choose optimal engineering solutions for dairy farms