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Optical emission spectroscopy as a tool for monitoring cold atmospheric pressure plasma processes

Author(s): Andrea Jurov (Author), Uroš Cvelbar (Supervisor), Nataša Hojnik (Co-Supervisor)

Year: 2021

Type: Doctoral dissertation

Non-equilibrium atmospheric pressure plasmas are used in many areas, such as food and agriculture, plasma medicine, plasma surface modification, material synthesis and deposition. Because of their versatility, many plasma setups have been developed. Of greater interest are those that operate at atmospheric pressure, like atmospheric pressure plasma jets (APPJs). Regarding …

Method for the determination of uranium isotope ratios and its application as a novel geochemical tracer

Author(s): Leja Rovan (Author), Marko Štrok (Supervisor)

Year: 2021

Type: Doctoral dissertation

U and Th isotopic composition have been proven to be a valuable tool in environmental science, oceanography, hydrology, geology, nuclear forensics, and science-based archaeology. These applications require simultaneous detection of both minor and major isotopes at high accuracy. Often, the amount of sample or concentration of U and Th are …

Predicting the dynamics of spatio-temporal systems based on heterogeneous data sources

Author(s): Blaž Kažič (Author), Dunja Mladenić (Supervisor)

Year: 2021

Type: Doctoral dissertation

As urbanisation continues to be a trend, in which centralisation of the population into cities is still growing, the importance of intelligent solutions in mobility is in high demand. Likewise, with the integration of renewable energies into all levels of the electrical grid system and the increasing amount of heavy …

Learning of dynamic movement primitives with deep neural networks

Author(s): Rok Pahič (Author), Aleš Ude (Supervisor)

Year: 2021

Type: Doctoral dissertation

Robots that are supposed to perform human-like tasks must possess appropriate skills to carry them out. In unstructured environments and for complex tasks, these skills are difficult to pre-program due to the complexity of the real world. It is therefore advantageous if robots have the ability to acquire the necessary …

Ostanki bisfenolov v vodnem okolju: pojavnost in kroženje

Author(s): Ana Kovačič (Author), Ester Heath (Supervisor), Tina Kosjek (Co-Supervisor)

Year: 2021

Type: Doctoral dissertation

Bisphenols are a group of industrial chemicals increasingly recognized as contaminants of emerging concern because of their presence in the environment and endocrine disrupting effects. They are used in the production of polycarbonate plastic, epoxy resins and thermal paper, in most cases without restriction. The global exception is bisphenol A, …

Defect chemistry and hardening of ferroelectric cobalt-doped bismuth ferrite ceramics: doctoral thesis

Author(s): Maja Makarovič (Author), Tadej Rojac (Supervisor), Sverre Magnus Selbach (Co-Supervisor)

Year: 2020

Type: Doctoral dissertation

Bismuth ferrite, BiFeO3 (BFO), has been recognized as a promising lead-free material for high-temperature piezoelectric applications due to its high Curie temperature of 825 °C. However, the practical use of BFO has been limited in particular by its elevated electrical conductivity. In addition, BFO shows the characteristics of ferroelectric hardening, …

Environmental impacts of building materials containing by-products from steel industry

Author(s): Tina Oblak (Author), Janez Ščančar, (Supervisor), Radmila Milačič (Co-Supervisor)

Year: 2013

Type: Doctoral dissertation

Recycling and reuse of waste by-products from steel industry is a common practice worldwide, which is in the last decade becoming more and more established also in Slovenia. Wastes from steel-making industry can be reused as alternative materials to successfully replace natural raw materials in asphalt mixes and in numerous …

Iodine(I) compounds: Catalysts for iodination of organic molecules

Author(s): Leon Bedrač (Author), Jernej Iskra (Supervisor)

Year: 2013

Type: Doctoral dissertation

The use of hydrogen peroxide as enviromentally benign oxidant for the oxidative iodination of organic molecules with iodine in the presence of halide ions as catalysts for the formation of iodine(I) species was investigated. The study of the reaction system iodine/ hydrogen peroxide/ acid revealed the formation of iodine(I) compound …

CO2 dynamics in a river system: mass balance, hydrological, geochemical and biochemical impacts

Author(s): Saša Zavadlav (Author), Sonja Lojen (Supervisor)

Year: 2013

Type: Doctoral dissertation

A 3-year systematic investigation (2007–2010) of water chemistry using conventional and stable isotope tracers helped us delineate hydro-biogeochemical processes in the karstic Krka River watershed. By mineralogical and stable isotopic examination of tufa deposits and combining the results with water chemistry, we were able to evaluate the suitability of tufa …

Organic geochemistry of stratified eutrophic alpine lakes (Lake Bled)

Author(s): Marinka Gams Petrišič (Author), Nives Ogrinc (Supervisor)

Year: 2013

Type: Doctoral dissertation

The identification and quantification of organic compounds present in the environment is a major area of application in modern analytical chemistry. However, it is still scarcely recognized that, in addition to the chemical identity and concentration of organic compounds, there is more information to be found about their source and …