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Kirje 14th International Conference on Biosystems Engineering 2024 : Book of Abstracts : May 8-10 2024 in Tartu, Estonia(Estonian University of Life Sciences, 2024) Estonian University of Life Sciences; Olt, Jüri (editor); Kikas, Timo (editor); Meneses, Lisandra (editor)Book of Abstracts. 14th International Conference on Biosystems Engineering 2024, May 8–10, 2024 Tartu, Estonia. Estonian University of Life Sciences.Kirje XVIII magistrantide teaduskonverents „Inimene ja tehnoloogiad“(Eesti Maaülikool, 2024) Eesti Maaülikool. Metsanduse ja inseneeria instituutEesti Maaülikooli Metsanduse ja inseneeria instituudi XVIII magistrantide teaduskonverentsi „Inimene ja tehnoloogiad“ [25. aprillil 2024] ettekannete kogumik.Kirje Small-scale Forestry and Modern Society : Proceedings of Small-scale Forestry Conference Tartu, Estonia, August 22 - 26, 2023(Eesti Maaülikool, 2023) Eesti Maaülikool; Padari, Allar (editor); Korjus, Henn (editor); Teder, Meelis (editor); Kangur, Ahto (editor)Abstracts presented at the symposium were published as conference proceedings.Kirje 13th International Conference on Biosystems Engineering 2023 : Book of Abstracts : May 10-12 2023 in Tartu, Estonia(Estonian University of Life Sciences, 2023) Estonian University of Life Sciences; Olt, Jüri (editor); Kikas, Timo (editor); Meneses, Lisandra (editor)Book of Abstracts. 13th International Conference on Biosystems Engineering 2023, May 10–12, 2023 Tartu, Estonia. Estonian University of Life Sciences.Kirje Implementation of EU biofuels policies at country level : [presentation](Estonian University of Life Sciences, 2020) Nasiri, Einaz; Meneses, Lisandra; Kikas, TimoWe reviewed relevant Laws which are adapted to promote the use of biofuels in the EU. Aim of this study is: 1) Understand the legal aspect of biofuel usage, 2) Ways EU member states implemented this policies in their national legislations.Kirje Second-generation bioethanol production : strategies for sidestreams valorisation in a sustainable circular economy : [presentation](Estonian University of Life Sciences, 2020) Rocha-Meneses, Lisandra; Orupõld, Kaja; Kikas, Timo Great attention has been paid to liquid biofuels produced from lignocellulosic biomass. The production of liquid biofuels still has environmental, economic and energetic limitations: a) Large volume of sidestreams are produced c) High costs of pretreatment and enzymatic hydrolysis b) High energy inputs are required to produce the fuel There is a continuous search for solutions to add value to the bioethanol production chain. Anaerobic digestion has been proposed as a handling option for waste recovery from biodegradable waste and bioethanol sidestreams.Kirje Study on performance of compression engine operated by biodiesel fuel(Estonian University of Life Sciences, 2020) Kaletnik, H.; Mazur, V.; Gunko, I.; Ryaboshapka, V.; Bulgakov, V.; Raide, Veljo; Ilves, Risto; Olt, JüriThe performance analysis of the biofuel energy efficiency in the combustion engine is as function of the fuel’s composition and other physical-chemical parameters. Different models and analysis do not take into account the effect that the use of different bio-diesel fuels has on the operation of the engine. Refinement is needed in describing the physical processes taking place in the engine’s cylinders. The aim of the study is the development of a mathematical model for the practical analysis of the efficiency of use of biofuel on diesel engines, which would take into account the fuel’s composition. The developed model in the article is designed to develop the 4Ч11.0/12.5 diesel engine.Kirje The impact of herd health on the efficiency of dairy farms : [presentation](Estonian University of Life Sciences, 2020) Põldaru, Reet; Luik-Lindsaar, HelisMaximization of profit is one of the main interests of any farmer. Profit depends on managerial decisions and many economic factors, but also on the health of the herd. Thus, it is important to study how different factors related to herd health impact farms’ economic performance. The objective of this paper is to determine how herd health influences farm technical efficiency by comparing Estonian farm data from two periods, the years 2012 and 2017. Typically, the major herd health issues are related to udder problems, followed by reproduction issues and limb disorders. We used the FADN (Farm Accounting Data Network) database and data from Estonian Livestock Performance Recording Ltd. The two-stage mathematical approach was chosen as the research method. In the first stage the DEA (Data Envelopment Analysis) was used to estimate farms’ technical efficiency. The output-oriented VRS (Variable Returns to Scale) approach was applied to the data of 64 farms. In the second stage, we used the FRM (Fractional Regression Model) to define which the technical efficiency drivers were among herd health and economic factors. The study revealed that major changes have occurred between the two periods analysed. The main herd health factors influencing farms’ technical efficiency are the somatic cell count (SCC) and age at first calving.Kirje Wildflowers availability not a land-use type affects commercial bumblebee foraging on the strawberry : [presentation](Estonian University of Life Sciences, 2020) Bontsutsnaja, Anna; Pisman, Matti; Karise, Reet; Mänd, Marika; Smagghe, GuyManaged bumble bees can be used to increase crop yield quality and quantity in areas where wild pollinators are insufficient. The success of introduced pollinators is highly dependent on the surrounding environment, competition with other pollinators, food source relevance, and foraging behavior.Kirje XVII magistrantide teaduskonverents „Inimene ja tehnoloogiad“(Eesti Maaülikool, 2023) Eesti Maaülikool. Metsanduse ja inseneeria instituutEesti Maaülikooli Metsanduse ja inseneeria instituudi XVII magistrantide teaduskonverentsi „Inimene ja tehnoloogiad“ [20. aprillil 2023] ettekannete kogumik.Kirje 12th International Conference on Biosystems Engineering 2021 : Book of abstracts : May 5-7 2021 in Tartu, Estonia(Estonian University of Life Sciences, 2021) Estonian University of Life Sciences; Olt, Jüri (editor); Kikas, Timo (editor); Meneses, Lisandra (editor)Book of Abstracts. 12th International Conference on Biosystems Engineering 2021, May 5–7, 2021 Tartu, Estonia. Estonian University of Life Sciences.Kirje Sustaining ecosystem services in forest landscapes : book of abstracts : IUFROLE WG Conference in Tartu, Estonia, 2015(Tartu Observatoorium, 2015) Lillemaa, Tiia (koostaja); Peterson, Urmas (koostaja); Perera, Ajith H. (koostaja)IUFRO Landscape Ecology Working Group Conference (2015 : Tartu)Kirje 11th International Conference on Biosystems Engineering 2020 : Book of abstracts : May 6-8 2020 in Tartu, Estonia(Estonian University of Life Sciences, 2020) Estonian University of Life Sciences; Olt, Jüri (editor); Kikas, Timo (editor); Meneses, Lisandra (editor)Book of Abstracts. 11th International Conference on Biosystems Engineering 2020, May 6–8, 2020 Tartu, Estonia. Estonian University of Life Sciences.Kirje XIV magistrantide teaduskonverents „Inimene ja tehnoloogiad“ : artiklite kogumik(Eesti Maaülikool, 2020) Eesti Maaülikool. TehnikainstituutEesti Maaülikooli Tehnikainstituudi XIV magistrantide teaduskonverentsi „Inimene ja tehnoloogiad“ [16. aprillil 2020] artiklite kogumik.Kirje 10th International Conference on Biosystems Engineering 2019 : Book of Abstracts : May 8-10 2019 in Tartu, Estonia(Estonian University of Life Sciences, 2019) Estonian University of Life Sciences; Olt, Jüri (editor); Kikas, Timo (editor); Meneses, Lisandra (editor)Book of Abstracts. 10th International Conference on Biosystems Engineering 2019, May 8–10, 2019 Tartu, Estonia. Estonian University of Life Sciences.Kirje XIII magistrantide teaduskonverents „Inimene ja tehnoloogiad“ : artiklite kogumik (Eesti Maaülikool, 2019) Eesti Maaülikool. Tehnikainstituut; Eesti Maaülikool. TehnikainstituutEesti Maaülikooli Tehnikainstituudi XIII magistrantide teaduskonverentsi „Inimene ja tehnoloogiad“ [18. aprillil 2019] artiklite kogumik.Kirje Tehnika ja tehnoloogia tulevikusuunad : magistrantide teaduslike tööde kogumik : ergonoomika eriala(Eesti Maaülikool, 2007) Eesti Maaülikool. TehnikainstituutKogumik sisaldab EMÜ Tehnikainstituudi magistrantide 2007. aasta [I] teaduskonverentsil ettekantud teadustöid.Kirje 9th International Conference on Biosystems Engineering 2018 : Book of Abstracts : 9-11 May 2018(Estonian University of Life Sciences, 2018) Estonian University of Life Sciences; Olt, Jüri (editor); Kikas, Timo (editor); Meneses, Lisandra (editor)Book of Abstracts. 9th International Conference on Biosystems Engineering 2018, May 9–11, 2018 Tartu, Estonia. Estonian University of Life SciencesKirje 8th International Conference on Biosystems Engineering 2017 : Book of Abstracts : 11-13 May 2017(Estonian University of Life Sciences, 2017) Estonian University of Life Sciences; Olt, Jüri (editor); Kikas, Timo (editor); Meneses, Lisandra (editor)Book of Abstracts. 8th International Conference on Biosystems Engineering 2017, May 11–13, 2017 Tartu, Estonia. Estonian University of Life SciencesKirje 7th International Conference on Biosystems Engineering 2016 : Book of Abstracts : 12-13 May 2016(Estonian University of Life Sciences, 2016) Estonian University of Life Sciences; Olt, Jüri (editor); Kikas, Timo (editor)Book of Abstracts. 7th International Conference on Biosystems Engineering 2016, May 12–13, 2016 Tartu, Estonia. Estonian University of Life Sciences