|
|
Data processing in real-time fMRI neurofeedback
Bečička, Martin ; Slavíček, Tomáš (referee) ; Lamoš, Martin (advisor)
Tato práce se zabývá digitálním filtrováním dat získaných z fMRI neurofeedbacku v reálném čase. Práce analyzuje dosavadní řešení používané v CEITEC MU, se zaměřením na zkrácení prodlení na začátku každého neurofeedback bloku, které je způsobeno digitálním filtrováním. Dosavadní řešení používá, hlavně pro jeho online a vyhlazovací vlastnosti, nelineární Kalmánův filtr. Analýzou 150 průběhu fMRI neurofeedback sezení byla zjištěna dolní hranice, kterou nelineární Kalmánův filtr potřebuje k naučení. Počet potřebných vzorků je významně menši než je nastaveno v dosavadním řešení. Další možnosti zkrácení prodlení byly prozkoumány a klouzavý průměrovací filtr byl vybrán jako optimální kompromis mezi dobou prodlení, zpoždění filtru a jeho vyhlazovacími vlastnostmi.
|
|
|
Project focused on creating company database for effective data processing
Sládková, Iva ; Bečička, Marek (referee) ; Kříž, Jiří (advisor)
This bachelor’s thesis is dealing with the project of a database system for a company running a business in industry. It gives analysis of the company, its requirements for the database and creation of a convenient database structure design. The objective of this work is to design a database that would meet the determined requirements of its users and will facilitate effective processing of data concerning the company’s business activity.
|
|
|
Service Area Marketing Plan
Sládková, Iva ; Bečička, Marek (referee) ; Heralecký, Tomáš (advisor)
The thesis focuses on service area analysis. The most fitted marketing mix for a particular market area and a marketing plan setting for XY Company are aims of the thesis. The company runs education field and service business. The marketing plan and mix should get the company to leading position in the market, using modern marketing tools. In a theoretical part of the thesis the basic issues are specified, the marketing mix and marketing planning are explained in general, including a description of an each marketing mix element and necessary analyses for marketing planning. In a practical part of the thesis the company and its background are defined and the final marketing plan is concluded.
|
|
| |
|
|
Evaluation of selected thermophysiological model for the isolated, confined mission in Antarctica
Bečička, Martin ; Dobrovolná,, Julie (referee) ; Paštěka, Richard (advisor)
Over the past few decades, numerous models have been created to estimate human thermal responses. These models rely on energy balance equations that consider the heat exchange between the human body and its environment. These models have substantially progressed from one-node models into complex structures organized in multiple layers and connected by a circulatory blood flow. Although there is literature available comparing the possible utility of the thermophysiological models in different scenarios, little is known about the utility of these mod els in specific conditions. This work investigates and compares selected thermophysiological models, focusing on selecting a suitable model for the use case scenario of Antarctica. The data was collected during a longitudinal study located at Johann Gregor Mendel Czech Antarctic station. The local skin temperature of participants (n = 16) was measured 6 times over the period of the study. The first of each measurement set consisted of orthostatic tests in addition to psychomotor vigilance task and Iowa gambling test present which were present in each of the subsequent measurements. After examining specific experimental conditions, four thermophysiological models were com pared, and the JOS-3 model was determined to be the most appropriate for the thermal data obtained during the experiment. The results revealed that the selected JOS-3 model can accurately predict mean skin temper atures for both experiment designs (RMSD 0.72 and 0.75 C for experiment design 1 and 2 respectively). Furthermore, the JOS-3 model was able to reliably predict head (RMSD 0.82 and 1.13 C), neck (RMSD 0.61 and 1 C), and chest (RMSD 1.01 and 1.22 C) skin temperatures. However, deviations observed for back, hand, and foot segments were significant (RMSD 2.08 - 2.25 and 2.55 - 2.68 C). Possible explanations include uncertainty in clothing insulation of the worn clothing, uncertainty in measurement circumstances (contact with surfaces - floor, table), and the placement of the thermal sensors. The highest deviation was observed in the pelvis (RMSD 2.25 and 3.72 C) and is possibly a result of the JOS-3 model overestimation of heat production in the segment. The study has underscored the significance of obtaining compre hensive data on clothing type and sensor placement for enhancing the accuracy of simulation outcomes.
|
|
|
Data processing in real-time fMRI neurofeedback
Bečička, Martin ; Slavíček, Tomáš (referee) ; Lamoš, Martin (advisor)
Tato práce se zabývá digitálním filtrováním dat získaných z fMRI neurofeedbacku v reálném čase. Práce analyzuje dosavadní řešení používané v CEITEC MU, se zaměřením na zkrácení prodlení na začátku každého neurofeedback bloku, které je způsobeno digitálním filtrováním. Dosavadní řešení používá, hlavně pro jeho online a vyhlazovací vlastnosti, nelineární Kalmánův filtr. Analýzou 150 průběhu fMRI neurofeedback sezení byla zjištěna dolní hranice, kterou nelineární Kalmánův filtr potřebuje k naučení. Počet potřebných vzorků je významně menši než je nastaveno v dosavadním řešení. Další možnosti zkrácení prodlení byly prozkoumány a klouzavý průměrovací filtr byl vybrán jako optimální kompromis mezi dobou prodlení, zpoždění filtru a jeho vyhlazovacími vlastnostmi.
|
|
| |
|
|
Project focused on creating company database for effective data processing
Sládková, Iva ; Bečička, Marek (referee) ; Kříž, Jiří (advisor)
This bachelor’s thesis is dealing with the project of a database system for a company running a business in industry. It gives analysis of the company, its requirements for the database and creation of a convenient database structure design. The objective of this work is to design a database that would meet the determined requirements of its users and will facilitate effective processing of data concerning the company’s business activity.
|
|
|
Service Area Marketing Plan
Sládková, Iva ; Bečička, Marek (referee) ; Heralecký, Tomáš (advisor)
The thesis focuses on service area analysis. The most fitted marketing mix for a particular market area and a marketing plan setting for XY Company are aims of the thesis. The company runs education field and service business. The marketing plan and mix should get the company to leading position in the market, using modern marketing tools. In a theoretical part of the thesis the basic issues are specified, the marketing mix and marketing planning are explained in general, including a description of an each marketing mix element and necessary analyses for marketing planning. In a practical part of the thesis the company and its background are defined and the final marketing plan is concluded.
|
|
|
Erosion of agricultural land and its importance for siltation and eutrophication of reservoirs in the Czech Republic
Krása, J. ; Jáchymová, B. ; Bauer, M. ; Dostál, T. ; Rosendorf, P. ; Hejzlar, Josef ; Borovec, Jakub ; Bečička, M.
In 58 large catchments of the Czech Republic (covering ca 35000 km2) the sediment transport processes were assessed. Amount of sediment flux into the streams and reservoirs from agricultural land was estimated. Sediment retention in all reservoirs was considered based on reservoirs‘ outflow. For thousands of small ponds the volumes and outflow had to be estimated based on reservoir areas and specific flow rates in catchments. The distributed approach allowed considering importance of particular agricultural fields for stream silting. The maps of annual sediment flow in all streams were derived. The sediment fluxes cause serious problems not only concerning eutrophication. For example Vltava river watershed up to Slapy dam (12 965 km2) exports 2.34 million tons of sediment by water erosion annually. 626 thousand ton is exported into the streams, and 615 500 t is then deposited in the reservoirs.
|
guest ::
RSS feed.