A5038258043- Astro and Planetary Science
- Planetary Science and Exploration
- Laser-induced spectroscopy and plasma
- Smart Agriculture and AI
- Geophysics and Gravity Measurements
- Historical Geography and Cartography
- Greenhouse Technology and Climate Control
- Astronomical Observations and Instrumentation
- Transportation Safety and Impact Analysis
- Ionosphere and magnetosphere dynamics
- Climate Change and Geoengineering
- Paleontology and Stratigraphy of Fossils
- GNSS positioning and interference
- Advanced Research in Science and Engineering
- Space exploration and regulation
- Analytical chemistry methods development
- Spaceflight effects on biology
- Origins and Evolution of Life
- Inertial Sensor and Navigation
- Plant Virus Research Studies
- Date Palm Research Studies
- Quantum Dots Synthesis And Properties
- Geological Formations and Processes Exploration
- Ancient Egypt and Archaeology
- Aerospace Engineering and Energy Systems
Mendel University in Brno
2019-2025
Czech Academy of Sciences, J. Heyrovský Institute of Physical Chemistry
2017-2023
VSB - Technical University of Ostrava
2022
BLOCK (Czechia)
2016-2022
Czech Academy of Sciences, Astronomical Institute
1998
Greenhouse crop production is growing throughout the world and early pest detection of particular importance in terms productivity reduction use pesticides. Conventional eye observation methods are nonefficient for large crops. Computer vision recent advances deep learning can play an important role increasing reliability productivity. This paper presents development comparison two different approaches based automated identification, using strategies. A solution that combines computer...
Aims. We aim to analyse real-time Perseid and Leonid meteor spectra using a novel calibration-free (CF) method, which is usually applied in the laboratory for laser-induced breakdown spectroscopic (LIBS) chemical analysis. Methods. Reference laser ablation of specimens chondritic meteorites were measured situ simultaneously with high-resolution echelle spectrograph spectral camera observation. Laboratory data subsequently evaluated via CF method compared real emission spectra. Additionally,...
Abstract Ultraviolet (UV) radiation is a significant environmental stressor that affects the growth, physiology, and biochemical integrity of various organisms. This study investigates potential protective effects zinc-cysteine (Zn–Cys) complex against UV-C radiation, with focus on its impact selected microalgae ( Coccomyxa peltigera e Parachlorella kessleri ) maize Zea mays L. ). We demonstrate exposure Zn–Cys to (254 nm) results in formation fluorescent photoproducts, which exhibit...
Context. Meteor spectra are commonly interpreted using data from databases and tables. Several studies have demonstrated very sophisticated calculations of elemental compositions meteoroid bodies based on the computation synthetic meteor or spectral analysis airglow plasma containing evaporated, atomized, ionized matter. However, considering accuracy, reliability computations, lack laboratory experimental in this field, as well complicated physical structure plasma, such qualitative...
Meteor plasmas and impact events are complex, dynamic natural phenomena. Simulating these processes in the laboratory is, however, a challenge. The technique of laser induced dielectric breakdown was first used for this purpose almost 50 years ago. Since then, laser-based experiments have helped to simulate high energy Tunguska Chicxulub events, heavy bombardment on early Earth, prebiotic chemical evolution, space weathering celestial bodies meteor plasma. This review summarizes current...
ABSTRACT A numerical simulation model was developed and employed in elemental composition determination characterization of meteor plasma physical parameters, particularly the excitation temperature electron density, by fitting parameters to emission spectrum a bright Leonid bolide recorded visible spectral range. Novel introduced this study involves self-absorption enables parallel optimization tens parameters. We also discuss that observed is strongly dependent on observation geometry.
Important features in meteor spectra are usually interpreted by synthetic convolution of lines extracted from databases. For such an assignment, our study, we employed experimental technique meteorite specimen laser ablation spectroscopy. The recorded high resolution laboratory Echelle spectrograph and simultaneously using novel Meteor Spectral Camera for observation. data subsequently evaluated via calibration-free method alongside with analysis real emission spectra. Additionally, spectral...
GreenPatrol robot is an autonomous robotic solution for early detection and control of pests in greenhouses. The importance precise positioning inside the greenhouse a key aspect to endow with ability scout environment, precisely register detected pest location into accurate maps allow later treatment. Greenhouses are challenging environment terms multipath signal blockage due its metal-reinforced complex structures glass or polycarbonate. localization takes advantage higher accuracy...
Under controlled laboratory conditions, lasers represent a source of energy with well-defined parameters suitable for mimicking phenomena such as ablation, disintegration, and plasma formation processes that take place during the hypervelocity atmospheric entry meteoroids. Furthermore, have also been proposed employment in future space exploration planetary defense wide range potential applications. This highlights importance an experimental investigation lasers’ interaction real samples...
European agriculture is facing numerous challenges such as population growth, climate change, resource shortages and increased competition, hence the challenge today to produce "more with less". Greenhouses protect crops from adverse weather conditions allowing year-round production integrated crop management approaches provide better control over pests diseases. However, without adequate controls intensification of greenhouse can create favourable for devastating infestation. The Horizon...
<p>The visible spectrum of a bright Leonid bolide was recorded and analyzed by fitting the parameters newly developed numerical plasma model. In this procedure, elemental composition, electron density, temperature, density heavy particles were extracted from observed spectrum. The model introduced in study involves self-absorption takes into account effects non-homogeneous meteoric on emission spectra using simple radiative transfer model.</p> research funded...
The rocks of the teschenite association form smaller scattered occurrences in upper part Hradiště Formation Silesian Unit. age igneous corresponds to Berriasian Barremian (Menčík et al. 1983). includes a relatively heterogeneous group with variable abundances felsic and mafic minerals. Three outcrops (both typical teschenites strongly altered ultramafic types) embedded non- volcanic sediments were studied bed Pazderůvka River between Bruzovice Žermanice (Bz1, Bz2, Bz3; Fig. 1). At Bz1 Bz2...
Abstract This observatory is not a large institution, though we do carry out long term photographic monitoring of prominences. Our intention to inform everybody about our observation programmes, the quality observations, archive and possibilities for its use. We present examples an electronic intervals events, prominence catalogue, discuss possible future co-operation.
Abstract Our results in the field of observing prominences at our observatory show dual eruptive on June 29, 1994 obtained by a coronograph Valašské Meziříčí. We tracked evolution these time and morphology.