Loodus- ja täppisteaduste valdkond
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Recent Submissions
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Statistilised mudelid bakterite segude määramiseks
(2020)Proovis sisalduva bakterite DNA sekveneerimisel on võimalik öelda, milliste bakterite DNAd proovis nähti ning mis koguses. Sekveneerimisel saadud andmeid on võimalik analüüsida vähimruutude, mittenegatiivsete vähimruutude ... -
Development and validation of a CFD-enabled digital twin of a portable HPGe gamma spectrometer
(IOP Publishing, 2020-01-22)This paper presents the design of an easily portable spectrometer using high purity germanium (HPGe) detector – HandSpec. The key challenge in the design of a lightweight spectrometer is to minimize its heat losses so that ... -
WEB-site for physics ( electricity and electronics) learning
(Tartu Ülikool, 2017-05-17)The purpose of this work is to create a website to help teachers of a school or a gymnasium in the preparation of small trainings in physics. Also, in principle, the site can be used for other school subjects and communication ... -
International Space Apps Challenge 2019 in Tartu
(Geograafia Osakond, Tartu Ülikool, 2019-12-12)The Department of Geography, the Tartu Observatory and Tartu Science Park jointly organised and hosted a 48h hackathon event as part of the 2019 International Space Apps Challenge. This global event happened on the weekend ... -
NASA International Space Apps Challenge 2018 in Tartu
(Geograafia Osakond, Tartu Ülikool, 2018-11-29)The Department of Geography, the Institute of Computer Science and the Tartu Observatory jointly organised and hosted a 48h hackathon event as part of the 2018 International NASA SpaceApps Challenge. This global event ... -
Incorporating the radiological effects and environmental impact assessment of naturally occurring radioactive materials (NORM) into the life cycle environmental optimisation of bauxite residue (BR) valorisation
(Bauxite Residue Valorisation and Best Practices, 2015-10)Bauxite Residue (BR) is a potentially valuable source of metals and construction materials, which the ETN REDMUD project aims to develop technologies to exploit. Bauxite contains low levels of Naturally Occurring Radioactive ... -
A framework for including enhanced exposure to naturally occurring radioactive materials (NORM) in LCA
(The International Journal of Life Cycle Assessment, 2016-11-22)Despite advances in the development of impact categories for ionising radiation, the focus on artificial radionuclides produced in the nuclear fuel cycle means that the potential impacts resulting from increased exposure ... -
Radiological assessment of the Bayer process
(Minerals Engineering, 2019-04-13)Naturally occurring radionuclides were studied through the Bayer process by calculating their mass flows. Aluminium of Greece (AoG) provided sample materials and plant data from several process stages. Measurements of ... -
Radiological Assessment of the Bauxite Residue Valorization Chain
(Journal of Radioanalytical and Nuclear Chemistry, 2019-07-27)The behavior of radionuclides in the bauxite residue valorization chain has been analyzed, and accumulation ratios have been measured for secondary residues produced after recovery of valuable metals. Key analysis outcomes ... -
IMPACT ASSESSMENT OF ENHANCED EXPOSURE FROM NATURALLY OCCURRING RADIOACTIVE MATERIALS (NORM) WITHIN LCA
(Journal of Cleaner Production, 2018-01-20)The potential impact of ionising radiation from enhanced exposure to Naturally Occurring Radioactive Materials (NORM) to humans and the environment is not currently accounted for sufficiently in Life Cycle Assessment (LCA). ... -
Assessment of NORM in bauxite residue to facilitate valorization
(2nd Bauxite Residue Valorisation and Best Practices Conference, 2018)In the new Euratom Basic Safety Standard (BSS), materials with elevated concentrations of natural radionuclides can be considered as a potential source of radiological exposure. Such materials are often found in mining and ... -
Distribution of uranium, thorium and potassium in the Bayer process
(2nd Bauxite Residue Valorisation and Best Practices Conference, 2018)Uranium, thorium, potassium and their decay product mass flows were analysed in the Bayer process. Gamma-ray spectroscopy was used to measure the radionuclide content in samples provided by Aluminium of Greece and to model ... -
Multiplettide vaba TMR spektri reaalajas mõõtmine lineaarse ennustamise abil
(Tartu Ülikool, 2019) -
Videote kasutamine klassitundides loodusainete õpetamisel
(Tartu Ülikool, 2019-06-05) -
Õpetajate arusaamad sotsiaal–teaduslike probleemide käsitlemisest loodusteaduste tundides
(Tartu Ülikool, 2019-06-05) -
Loodusainete tundides kasutatavad õpetamismeetodid – õpilaste ja õpetajate arvamuste võrdlus
(Tartu Ülikool, 2019-07-11) -
Disainimine ja leiutamine õppetöös: õpetajate arusaamad ja senine praktika
(Tartu Ülikool, 2019-07-11) -
Performance evaluation of Monte Carlo simulation: Case study of Monte Carlo approximation vs. analytical solution for a chi-squared distribution
(IOP Publishing, 2020)The guide to the expression of uncertainty in measurement (GUM) describes the law of propagation of uncertainty for linear models based on the first-order Taylor series approximation of Y = f(X1, X2, …, XN). However, for ... -
Creating basis for introducing non‐invasive prenatal testing in the Estonian public health setting
(John Wiley & Sons, Ltd., 2019-11)Objective The study aimed to validate a whole‐genome sequencing‐based NIPT laboratory method and our recently developed NIPTmer aneuploidy detection software with the potential to integrate the pipeline into prenatal ...
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