Number of found documents: 15708
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City simulation software for modeling, planning, and strategic assessment of territorial city units
Svítek, M.; Přibyl, O.; Vorel, J.; Garlík, B.; Resler, Jaroslav; Kozhevnikov, S.; Krč, Pavel; Geletič, Jan; Daniel, Milan; Dostál, R.; Janča, T.; Myška, V.; Aralkina, O.; Pereira, A. M.
2021 - English
SVÍTEK, M., PŘIBYL, O., VOREL, J., GARLÍK, B., RESLER, J., KOZHEVNIKOV, S., KRČ, P., GELETIČ, J., DANIEL, M., DOSTÁL, R., JANČA, T., MYŠKA, V., ARALKINA, O., PEREIRA, A. M. City simulation software for modeling, planning, and strategic assessment of territorial city units. 1.1. Prague: CTU & ICS CAS, 2021. Technical Report. ABSTRACT: The Smart Resilience City concept is a new vision of a city as a digital platform and eco-system of smart services where agents of people, things, documents, robots, and other entities can directly negotiate with each other on resource demand principals providing the best possible solution. It creates the smart environment making possible self-organization in sustainable or, when needed, resilient way of individuals, groups and the whole system objectives. Keywords: Smart city; City simulation; Energy resource-demand modelling; Environmental modelling; Synthetic population; Transport modelling Available on request at various institutes of the ASCR
City simulation software for modeling, planning, and strategic assessment of territorial city units

SVÍTEK, M., PŘIBYL, O., VOREL, J., GARLÍK, B., RESLER, J., KOZHEVNIKOV, S., KRČ, P., GELETIČ, J., DANIEL, M., DOSTÁL, R., JANČA, T., MYŠKA, V., ARALKINA, O., PEREIRA, A. M. City simulation software ...

Svítek, M.; Přibyl, O.; Vorel, J.; Garlík, B.; Resler, Jaroslav; Kozhevnikov, S.; Krč, Pavel; Geletič, Jan; Daniel, Milan; Dostál, R.; Janča, T.; Myška, V.; Aralkina, O.; Pereira, A. M.
Ústav informatiky, 2021

Accuracy of the analytical methods developed for blade tip-timing analysis
Maturkanič, Dušan; Procházka, Pavel; Kozánek, Jan
2021 - English
Within the research of methods for precision solution of rotor blade vibration based on the philosophy of Blade Tip-Timing at the Institute of Thermomechanics AS CR, v.v.i., the effort was concentrated on the decomposition of measured data. This paper describes the accuracy of analytical methods taking into consideration the errors of the measured sensors or the influence of the measurement conditions on the results. Keywords: harmonic function; analytical method; blade vibration; accuracy; error; distortion; frequency Available at various institutes of the ASCR
Accuracy of the analytical methods developed for blade tip-timing analysis

Within the research of methods for precision solution of rotor blade vibration based on the philosophy of Blade Tip-Timing at the Institute of Thermomechanics AS CR, v.v.i., the effort was ...

Maturkanič, Dušan; Procházka, Pavel; Kozánek, Jan
Ústav termomechaniky, 2021

Dynamics of a magnetically excited blade: theoretical and experimental analysis
Tchawou Tchuisseu, Eder Batista; Procházka, Pavel; Mekhalfia, Mohammed Lamine; Hodboď, Robert; Maturkanič, Dušan
2021 - English
This work dealt with the theoretical and experimental analysis of a static blade subjected to a magnetic excitation. The theoretical analysis combines the modeling and design of the blade via ANSYS in whih the modal analysis is done. Both methods showed qualitative agreement of the results. Keywords: turbine blade; magnetic excitation; turbo-machinery; finite element method Available at various institutes of the ASCR
Dynamics of a magnetically excited blade: theoretical and experimental analysis

This work dealt with the theoretical and experimental analysis of a static blade subjected to a magnetic excitation. The theoretical analysis combines the modeling and design of the blade via ANSYS in ...

Tchawou Tchuisseu, Eder Batista; Procházka, Pavel; Mekhalfia, Mohammed Lamine; Hodboď, Robert; Maturkanič, Dušan
Ústav termomechaniky, 2021

STRUCTURAL AND MAGNETIC PROPERTIES OF FE-OXIDE LAYERS PREPARED BY INKJET PRINTING ON SI-SUBSTRATE
Zažímal, František; Svoboda, T.; Dzik, P.; Homola, T.; Jirásková, Yvonna
2021 - English
Magnetic films with two, four, six, and eight layers were prepared using 2D inkjet printing on the 333 K heated Si-substrates at ambient conditions. The microstructure, phase composition of layers, and magnetic studies were investigated using wide spectrum of experimental methods with the aim to find the optimal conditions for producing magnetic sensors by digital printing technology in the near future. As the magnetic compound, the hematite powder was chosen and its milling with Si-binder dissolved in dowanol using glass balls and vial to prevent contamination was done to prepared suspension appropriate for printing. It is shown that hematite transformed markedly into maghemite, thus the layers consisted of small amount hematite and dominant maghemite phases determining the magnetic properties. From the viewpoint of magnetic behavior, the highest saturation magnetization and the lowest coercivity was obtained at the sample with 8 layers. Keywords: Inkjet printing; hematite; physical properties; testing methods Available at various institutes of the ASCR
STRUCTURAL AND MAGNETIC PROPERTIES OF FE-OXIDE LAYERS PREPARED BY INKJET PRINTING ON SI-SUBSTRATE

Magnetic films with two, four, six, and eight layers were prepared using 2D inkjet printing on the 333 K heated Si-substrates at ambient conditions. The microstructure, phase composition of layers, ...

Zažímal, František; Svoboda, T.; Dzik, P.; Homola, T.; Jirásková, Yvonna
Ústav fyziky materiálů, 2021

SMV-2021-04: Pokročilá EDS analýza miniaturních maleb v EREM
Neděla, Vilém; Tihlaříková, Eva
2021 - Czech
Vzorky byly analyzovány v experimentálně stanovených a optimalizovaných podmínkách environmentálního rastrovacího elektronového mikroskopu a pomocí EDS X-Ray mikro analyzátoru Bruker. Samples were analysed in experimentally reached and optimised high pressure conditions of environmental scanning electron microscope and using EDS X-Ray micro-analyser. Keywords: art works; ESEM; EDS Available at various institutes of the ASCR
SMV-2021-04: Pokročilá EDS analýza miniaturních maleb v EREM

Vzorky byly analyzovány v experimentálně stanovených a optimalizovaných podmínkách environmentálního rastrovacího elektronového mikroskopu a pomocí EDS X-Ray mikro analyzátoru Bruker....

Neděla, Vilém; Tihlaříková, Eva
Ústav přístrojové techniky, 2021

Assessment of Independent EEG Components Obtained by Different Methods for BCI Based on Motor Imagery
Húsek, Dušan; Frolov, A. A.; Kerechanin, J. V.; Bobrov, P.D.
2021 - English
Eight methods of decomposition of a multichannel EEG signal are compared in terms of their ability to identify the most physiologically significant components. The criterion for the meaningfulness of a method is its ability to reduce mutual information between components; to create components that can be attributed to the activity of dipoles located in the cerebral cortex; find components that are provided by other methods and for this case; and at the same time, these components should most contribute to the accuracy of the BCI based on imaginary movement. Independent component analysis methods AMICA, RUNICA and FASTICA outperform others in the first three criteria and are second only to the Common Spatial Patterns method in the fourth criterion. The components created by all methods for 386 experimental sessions of 27 subjects were combined into more than 100 clusters containing more than 10 elements. Additionally, the components of the 12 largest clusters were analyzed. They have proven to be of great importance in controlling BCI, their origins can be modeled using dipoles in the brain, and they have been detected by several degradation methods. Five of the 12 selected components have been identified and described in our previous articles. Even if the physiological and functional origins of the rest of identified components’ are to be the subject of further research, we have shown that their physiological nature is at least highly probable.\n Keywords: brain–computer interface; motor imagery; blind source separation; independent component analysis; common spatial patterns; cluster analysis; EEG pattern extraction; EEG analysis; ICA; CSP; BCI; motor imagery Available on request at various institutes of the ASCR
Assessment of Independent EEG Components Obtained by Different Methods for BCI Based on Motor Imagery

Eight methods of decomposition of a multichannel EEG signal are compared in terms of their ability to identify the most physiologically significant components. The criterion for the meaningfulness of ...

Húsek, Dušan; Frolov, A. A.; Kerechanin, J. V.; Bobrov, P.D.
Ústav informatiky, 2021

Nanostructured layer enhancing light extraction from GaN-based scintillator using MOVPE
Vaněk, Tomáš; Hubáček, Tomáš; Hájek, František; Dominec, Filip; Pangrác, Jiří; Kuldová, Karla; Oswald, Jiří; Hospodková, Alice
2021 - English
Light extraction (LE) efficiency of GaN buffer layer was studied by angle-resolved photoluminescence. We measured enhancement of light extraction efficiency (LEE) up to 154% by introducing the SiNx layer atop the GaN buffer and subsequent GaN light extraction layer (LEL) overgrowth. Morphological properties of GaN. Keywords: MOVPE; GaN; light extraction; SiNx; scintillator Available at various institutes of the ASCR
Nanostructured layer enhancing light extraction from GaN-based scintillator using MOVPE

Light extraction (LE) efficiency of GaN buffer layer was studied by angle-resolved photoluminescence. We measured enhancement of light extraction efficiency (LEE) up to 154% by introducing the SiNx ...

Vaněk, Tomáš; Hubáček, Tomáš; Hájek, František; Dominec, Filip; Pangrác, Jiří; Kuldová, Karla; Oswald, Jiří; Hospodková, Alice
Fyzikální ústav, 2021

Score matching filters for Gaussian Markov random fields with a linear model of the precision matrix
Turčičová, Marie; Mandel, J.; Eben, Kryštof
2021 - English
We present an ensemble filter that provides a rigorous covariance regularization when the underlying random field is Gaussian Markov. We use a linear model for the precision matrix (inverse of covariance) and estimate its parameters together with the analysis mean by the Score Matching method. This procedure provides an explicit expression for parameter estimators. The resulting analysis step formula is the same as in the traditional ensemble Kalman filter. Keywords: Score matching; ensemble filter; Gaussian Markov random field; covariance modelling Available in digital repository of the ASCR
Score matching filters for Gaussian Markov random fields with a linear model of the precision matrix

We present an ensemble filter that provides a rigorous covariance regularization when the underlying random field is Gaussian Markov. We use a linear model for the precision matrix (inverse of ...

Turčičová, Marie; Mandel, J.; Eben, Kryštof
Ústav informatiky, 2021

Průzkum stropní konstrukce knihovny Jezuitské koleje v Telči
Válek, Jan; Skružná, Olga
2021 - Czech
Cílem nedestruktivního průzkumu bylo bližší poznání stropní konstrukce před plánovanou rekonstrukcí knihovny. The aim of the non-destructive survey was to reach better description of the ceiling structure before the planned reconstruction of the library. Keywords: ground penetrating radar (GPR); non-destructive survey; radargrams; cultural heritage Available at various institutes of the ASCR
Průzkum stropní konstrukce knihovny Jezuitské koleje v Telči

Cílem nedestruktivního průzkumu bylo bližší poznání stropní konstrukce před plánovanou rekonstrukcí knihovny....

Válek, Jan; Skružná, Olga
Ústav teoretické a aplikované mechaniky, 2021

Analýza napjatosti kleneb v budově Univerzitního centra Masarykovy univerzity v Telči
Bayer, Jan; Drdácký, Miloš
2021 - Czech
Zpráva shrnuje výsledky z místních šetření, expertních posudků a výpočtů, které se týkají kleneb v objektu bývalé jezuitské koleje v Telči na náměstí Zachariáše z Hradce č.p. 2. Podmětem pro šetření byl nedostatek podkladů pro posouzení zatížitelnost kleneb pro nový účel: zřízení veřejné knihovny kombinované s galerií. Provedené výpočty MKP slouží pro odhad napjatosti klenby v místnosti 0.22Aa nenahrazují statický výpočet, ale mohou sloužit jako podklad pro eventuální zpracování podrobného statického výpočtu. The report summarizes the results of local surveys, expert opinions and analysis concerning the vaults in the building of the former Jesuit dormitory in Telč on Zachariáš Square in Hradec no. 2. The investigation was induced by the lack of inputs data for the assessment of the vaults for a new purpose: the establishment of a public library combined with a gallery. The performed FEM calculations estimated the stresses in the vaults of the room 0.22A and do not replace the static calculation, but can serve as an input information for a possible design project. Keywords: masonry vaults; ground penetrating radar (GPR); ANSYS; stress analysis; Jesuits dormitory in Telč Available at various institutes of the ASCR
Analýza napjatosti kleneb v budově Univerzitního centra Masarykovy univerzity v Telči

Zpráva shrnuje výsledky z místních šetření, expertních posudků a výpočtů, které se týkají kleneb v objektu bývalé jezuitské koleje v Telči na náměstí Zachariáše z Hradce č.p. 2. Podmětem pro šetření ...

Bayer, Jan; Drdácký, Miloš
Ústav teoretické a aplikované mechaniky, 2021

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