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Optimization and application of MeV time-of-flight secondary ion mass spectrometry in the standard and low primary ion beam energy mode

Author(s): Marko Barac (Author), Zdravko Siketić (Supervisor), Janez Kovač (Co-Supervisor)

Year: 2022

Type: Doctoral dissertation

Time-of-flight secondary ion mass spectrometry using MeV ions (MeV ToF SIMS) has been around for a few decades as a reliable, surface-sensitive method for the detection of molecular ions having masses up to 1000 Da. It provides excellent lateral resolution of a few μm for imaging of organic samples, making …

Synthesis and properties of anodically oxidised films on metal titanium substrate for photocatalytic applications

Author(s): Živa Marinko (Author), Miran Čeh (Supervisor)

Year: 2022

Type: Doctoral dissertation

The link between TiO2 and photocatalysis was recognized a long time ago. However, there was originally no scientific knowledge relating to the process of photocatalysis. Given this, it is impressive that the most significant advances in the properties of TiO2 in photocatalytic processes have been made since the first reports …

Electrochemically synthesised polyaniline for gas and aqueous detection of ammonia

Author(s): Anja Korent (Author), Kristina Žužek (Supervisor)

Year: 2022

Type: Doctoral dissertation

An everyday awareness of the presence of harmful chemicals around us has led to the development of a way to report overexposure through the reactions of these compounds with specifically prepared materials - sensory elements. In this doctoral dissertation we focused on the electrochemical synthesis (electropolymerization) of conductive polymer polyaniline …

Electron microscopy of titanium oxynitride supported iridium based electrocatalysts

Author(s): Gorazd Koderman Podboršek (Author), Goran Dražić (Supervisor)

Year: 2022

Type: Doctoral dissertation

We are speeding full throttle towards a climate catastrophe and we have only until 2030 to take action to avoid the most devastating and unimaginable consequences. The lack of political and corporate will to change the status quo of “business as usual” is causing mass protests and civil disobedience globally. …

Annotation of semi-polar organic contaminants by using gas chromatography coupled to mass spectrometry and machine learning

Author(s): Milka Ljoncheva (Author), Tina Kosjek (Supervisor), Sašo Džeroski (Co-Supervisor)

Year: 2022

Type: Doctoral dissertation

Contaminants of emerging concern (CECs), representing a subgroup of organic compounds of natural or synthetic origin, and their degradation and transformation products (TPs), with potentially harmful effects on humans, biota, and the environment, are the eco-exposome (EE) constituents of utmost importance. Their identification, quantification, and continued investigation into their environmental …

Atmospheric pressure plasma jet deposition of nanoparticles and its applications

Author(s): Aswathy Vasudevan (Author), Aleksander Zidanšek (Supervisor), Uroš Cvelbar (Co-Supervisor)

Year: 2022

Type: Doctoral dissertation

Atmospheric pressure non-equilibrium plasma jets in material processing have received substantial attention in the past two decades and are still in the developing stage with a growing interest in material synthesis and surface processing. The main opportunities of these techniques are their potential cost reductions in apparatus and handling. Because …

Diversity of viruses infecting tomato and weed plants in agroecosystems

Author(s): Mark Paul Selda Rivarez (Author), Denis Kutnjak (Supervisor), Maja Ravnikar (Co-Supervisor)

Year: 2022

Type: Doctoral dissertation

Viruses, satellite viruses, viroids, virusoids, and satellite nucleic acids (herewith, referred to collectively or in part as ‘viruses’) comprise the virosphere and are perhaps the most diverse and abundant, yet still under-sampled, microbes on Earth. They are primarily regarded as pathogens or parasites of their eukaryotic or prokaryotic hosts. In …

Quantitative imaging of cisplatin in tumour samples by laser ablation inductively coupled plasma mass spectrometry

Author(s): Stefan Marković (Author), Janez Ščančar (Supervisor), Janja Vidmar (Co-Supervisor)

Year: 2022

Type: Doctoral dissertation

Medicine relies on imaging techniques such as ultrasound, magnetic resonance, computed tomography and histopathological image analysis because they provide valuable data needed for the diagnosis and treatment of diseases and injuries. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is often used in research and for the advanced diagnosis and …

Combining neural and symbolic representations in natural language processing

Author(s): Matej Martinc (Author), Senja Pollak (Supervisor)

Year: 2022

Type: Doctoral dissertation

The thesis addresses a novel representation learning framework, combining neural and symbolic text representations, and demonstrates its utility for tackling diverse natural language processing problems. The proposed approach, avoiding the deficiencies of purely symbolic and purely neural methods, can be applied for the generation of efficient text representations. Its usefulness …

Time-efficient method for monitoring electrochemical energy conversion systems

Author(s): Gjorgji Nusev (Author), Pavle Boškoski (Supervisor)

Year: 2022

Type: Doctoral dissertation

According to the EU’s Green Deal plan, one of the main objectives for the EU is to become a net-zero greenhouse emission society by 2050. Achieving this goal requires advancements across many areas ranging from energy production, conversion, distribution and energy storage where the key role is taken by the …