3. PhD Theses
Recent Submissions
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Liquid fuels air-fuel mixture processing system with spark ignition engine for use in generators in a crisis situation
(Estonian University of Life Sciences, 2023)In times of crisis and war, there is a high probability that the operation of electrical networks will be disrupted, and therefore some distribution networks may remain without electricity. As a result, important information- ... -
Changes in agricultural land use in Estonia: opportunities for stable land use
(Estonian University of Life Sciences, 2023)The issue of land concentration in the EU and many parts of the world remains basic and is one of the most serious land issues in the district today. Agricultural land is becoming increasingly concentrated into the hands ... -
Genetic diversity, origin, and new hosts of the invasive pathogen Lecanosticta acicola in northern Europe
(Estonian University of Life Sciences, 2022)Lecanosticta acicola is an ascomycete causing Brown Spot Needle Blight (BSNB) – a foliar disease affecting pine species (Pinus spp.). The disease causes premature needle shedding which leads to reduced growth of the trees ... -
Biosensor array for BOD measurements in different types of wastewater
(Estonian University of Life Sciences, 2022)The basis of all life on Earth is the existence of clean water. The state of water must be constantly monitored to ensure that the water is clean. One critical parameter in accessing water purity is the content of organic ... -
Occupational noise exposure and hearing problems among active military service personnel in Estonia
(Estonian University of Life Sciences, 2022)Hearing loss is one of the most common health problems among military personnel. Active service members are mostly exposed to high-level noise from gunfire, blasts, and military vehicles commonly used by the Land, Naval ... -
Development and optimization of a reagent-free pretreatment method for the production of liquid biofuels from lignocellulosic waste
(Estonian University of Life Sciences, 2022)Global energy consumption and demand are increasing every year. In 2018, the distribution of global energy consumption was as follows: 51% heat production, 17% electricity production and 32% transportation sector. There ... -
Quantitative assessment of stand structural traits and health condition in hemiboreal forest ecosystems
(Estonian University of Life Sciences, 2022)In recent years, the focus of Estonian forestry has been on the better integration of economical, ecological and social functions, and consideration of ecosystem services. Although forest conservation is an important step ... -
Cultivation technology for lowbush blueberry cultivation in milled peat field plantations
(Eesti Maaülikool, 2021)Blueberry cultivation on milled peat fields is not particularly common in Estonia, while also not being very profitable. The basis for the development of blueberry cultivation is the mechanization and automation of ... -
Методика оптимизации структуры посевных площадей и размещения севооборотов в условиях Эстонской ССР : автореферат диссертации на соискание учёной степени кандидата экономических наук
(Тартуский государственный университет, 1974)Среди мер, направленных на повышение объема и эффективности производства сельскохозяйственной продукции, большое значение имеет усовершенствование методики планирования производства. В директивах XXIV съезда КПСС ... -
Distribution of and damages by Dutch elm disease agents in Northeastern Europe
(Eesti Maaülikool, 2021)As elsewhere in the world, elms in Northeastern Europe are threatened by Dutch elm disease (DED), which is one of the most devastating diseases of the elms. The aim of the doctoral thesis was to investigate the spread of ... -
Novel application principles for energy storage technologies in nearly zero energy buildings
(Eesti Maaülikool, 2021)In this thesis the renewable energy storage options in residential buildings are under investigation. This is to store cheap electricity due to the temporary overproduction of large wind farms and also on-site solar and ... -
Short-term effect of felling on carbon fluxes and storages in different Estonian forest ecosystems
(Eesti Maaülikool, 2021)Boreal forests are large C sinks that play an essential role in the fight with climate changes. However, forest management and especially fellings are one of the important factors affecting stand C accumulation capacity. ... -
The effects of land use and climate change on the hydropower potential in Estonian rivers
(Eesti Maaülikool, 2020)Water-related changes are currently receiving the most focus in the context of climate change around the world. The changing climate conditions have already redistributed water resources, including the hydropower potential ... -
Solar and wind energy seasonal heat storage systems for residential buildings in Nordic climate
(Eesti Maaülikool, 2020)In this doctoral thesis are handled possibilities, how to increase renewable energy on-site usage, which is produced from wind and sun. In the Nordic climate, the main share of energy consumption in buildings is the need ... -
Evaluation of forest management in the context of carbon fluxes: Eddy-Covariance method
(Eesti Maaülikool, 2020)Boreal forest, being a widely distributed vegetation type as well being a substantial part of the global carbon (C) cycle, must be addressed to understand the consequences of climate change. Forest ecosystems are part of ... -
Second-generation bioethanol production: strategies for sidestreams valorisation in a sustainable circular economy
(Eesti Maaülikool, 2020)Due to the increase of the energy production mainly from non–renewable energy sources, there is a need for alternative sources of energy. Second–generation biofuel production, using lignocellulosic biomass as a feedstock, ... -
Estimating forest variables using airborne lidar measurements in hemi-boreal forests
(Eesti Maaülikool, 2020)Forest management and planning requires up-to-date data, which commonly is acquired using field experts and ground measurements. Nowadays, more and more of data about forest stands is measured using remotely sensing methods. ... -
Applicability of low-cost electromyographs in ergonomic assessment
(Eesti Maaülikool, 2020)Every year a considerable amount of gross domestic product in several countries is lost due to work-related musculoskeletal disorders (WMSDs). Thus, one of the goals of ergonomics is to prevent WMSDs. A body of knowledge ... -
Carbon and nitrogen fluxes in birch and grey alder stands growing on different sites
(Eesti Maaülikool, 2019)Increase in carbon (C) sequestration in different ecosystems is a crucial task in mitigating climate change. Among terrestrial ecosystems, boreal and hemiboreal forests have been reported as ecosystems with high C sink ... -
Ground Vegetation Diversity and Geobotanical Analysis in the South-West Estonian Dune Pine Forests
(Eesti Maaülikool, 2018)This thesis focuses on vascular plants, bryophytes and lichens of forested dunes of various heights in south-west Estonia, with the overall aim to determine the environmental factors that shape ground vegetation communities. ...
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