A5038529423- Lichen and fungal ecology
- Mycorrhizal Fungi and Plant Interactions
- Fault Detection and Control Systems
- Plant Pathogens and Fungal Diseases
- Polar Research and Ecology
- Electronic and Structural Properties of Oxides
- Fuzzy Logic and Control Systems
- Advancements in Solid Oxide Fuel Cells
- Advanced ceramic materials synthesis
- Marine and coastal plant biology
- Fungal Biology and Applications
- Bryophyte Studies and Records
- Microwave Dielectric Ceramics Synthesis
- Biocrusts and Microbial Ecology
- Advanced Chemical Sensor Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Advanced Photocatalysis Techniques
- Intermetallics and Advanced Alloy Properties
- Geology and Paleoclimatology Research
- Adaptive Control of Nonlinear Systems
- Nuclear materials and radiation effects
- Anomaly Detection Techniques and Applications
- Microbial Natural Products and Biosynthesis
- X-ray Diffraction in Crystallography
- Yeasts and Rust Fungi Studies
TU Wien
2016-2024
Salzburg University of Applied Sciences
2020-2022
University of Salzburg
2006-2021
Technische Universität Berlin
2005
Ludwig-Maximilians-Universität München
1999-2002
Abstract As part of a comprehensive study on lecideoid lichens in Antarctica, we investigated the photobiont diversity and abundance 119 specimens from 11 localities continental maritime Antarctic. A phylogeny these ITS sequences, including samples arctic, alpine temperate lowland regions, reveals presence five major Trebouxia clades Antarctic lichens. Two are formed by members T. jamesii impressa aggregates but for all other no close match to any known species could be found sequence...
The genetic diversity of green algal photobionts (chlorobionts) in soil crust forming lichens was studied as part the SCIN-project (Soil Crust InterNational). A total 64 lichen samples were collected from four different sites along latitudinal and altitudinal gradients Europe (Tabernas/Spain; Hochtor-Großglockner/Austria; Gynge Alvar/Sweden; Ruine Homburg/Germany). dominant species at all Psora decipiens, often occurring with Buellia elegans, Fulgensia bracteata, F. fulgens Peltigera...
Abstract The impact of UV irradiation on Fe‐doped SrTiO 3 (Fe:STO) single crystals is investigated at elevated temperatures. Illumination leads to incorporation oxygen into the and thus a decreasing vacancy concentration oxidation Fe 3+ 4+ . ions cause color change from transparent/brownish black. This photochromic blackening due stoichiometry changes temperatures irreversible room temperature, but annealing high temperatures, for example 700 °C, can restore original color. Absorbance are...
Abstract The diversity of lichens, especially crustose species, in continental Antarctica is still poorly known. To overcome difficulties with the morphology based species delimitations these groups, we employed molecular data (nuclear ITS and mitochondrial SSU rDNA sequences) to test boundaries within genus Lecidea. Sampling was done along a north–south transect at five different areas Ross Sea region (Cape Hallett, Botany Bay Mount Suess, Taylor Valley, Darwin Area Kyffin). A total 153...
A SrTiO<sub>3</sub> working electrode at 360–460 °C incorporates oxygen under UV illumination. This leads to a voltage in solid oxide (photo-)electrochemical cell..
New approaches in process monitoring during industrial fermentations are not only limited to classical pH, dO₂ and offgas analysis, but use different situ online sensors based on physical principles determine biomass, product quality, lysis far more. One of the very important is accessibility viable cell concentration (VCC). This knowledge provides increased efficiency controlling strategies cultivations. Electrochemical impedance spectroscopy-EIS-is used monitor biomass a fermentation E....
A solid‐state photoelectrochemical cell is operated between 400 and 500 °C under 365 nm UV light. The consists of a photovoltaic part, based on La 0.8 Sr 0.2 CrO 3 /SrTiO junction, an electrochemical part including zirconia solid electrolyte with shared (La,Sr)FeO electrode. leads to open circuit voltages up 920 mV at °C. Upon light, this driving force used in the pump oxygen from low high partial pressures, i.e., convert radiation energy chemical energy. This demonstrates feasibility...
This article investigates the problem of fault estimation and <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${H}_{\infty }$ </tex-math></inline-formula> fuzzy active fault-tolerant control design for ship steering autopilot (SSA) system with simultaneous partial states that are not easily measured, actuator (steering machine), sensor (compass) faults. First, Takagi–Sugeno (T–S) model is employed to...
Today’s yeast total biomass and viability measurements during the brewing process are dependent on offline methods such as methylene blue or florescence dye-based staining, and/or usage of flow cytometric measurements. Additionally, microscopic cell counting decelerate an easy quick prediction viability. These processes time consuming result in a time-delayed response signal, which not only reduces knowledge performance itself, but also impacts quality final product. Novel approaches...
This paper is concerned with the observer-based fuzzy adaptive fault-tolerant control problem for nonlinear steering (NSC) system of unmanned surface vehicle (USV) unmeasurable states, sideslip angle, and machine fault. To facilitate controller design, Takagi-Sugeno (T-S) model used to deal NSC system, modeling error analysis (MEA) conducted T-S using real course tracking data. By introducing a pre-filter, large heading change rate can be avoided robustness improved. Then, observer (FAO)...