|
| |
|
|
Investigating grammatical mistakes made by Czech students of English
ŠESTÁK, Jiří
The main theme of the bachelor thesis is the most common mistakes made by Czech students of English. The theoretical part will define selected grammatical phenomena and focus on their classification, mapping the possible influence of the mother tongue of Czech speakers on the use of English grammar. The practical part will examine mistakes made by students in their written works and identify the different groups of grammatical phenomena in which students often err. The conclusion of the practical section will be devoted to analysing the results of testing the most common grammatical errors and possibly comparing the level of English language proficiency of individual students.
|
|
|
Portable liquid chromatograph and analyses of hazardous substances
Šesták, Jozef ; Gogaľová, Zuzana ; Kahle, Vladislav ; Lunerová, K.
Progress in technology of microchips, batteries and LEDs in the last two decades enable development of portable instruments which can satisfy the requirements of modern liquid chromatography (LC). Application of portable LC is advantageous if simple and rapid sample treatment procedure followed by a short HPLC run can be executed in the point of sampling. Our research group have developed a concept of portable HPLC based on simple hydraulic scheme and a unique optical detector for simultaneous detection of absorbance and fluorescence of compounds eluted off microcolumn. Considering in-field analysis of hazardous substances, this instrument can be advantageous for analysis of compounds which are difficult to detect and quantify by other contemporary portable instruments utilizing different working principles due to incompatibility with their physico-chemical properties (e. g. microbial toxins).
|
|
| |
|
| |
|
|
Dynamic Mesh Network Implemented in Micropython on Top of ESP-NOW Protocol
Šesták, Jindřich ; Hujňák, Ondřej (referee) ; Malinka, Kamil (advisor)
Cílem této práce je vytvořit fungující dynamickou mesh síť na ESP32 microkontrolerech pro využití v IoT a senzorových sítích. Mesh síť se skládá z několika uzlů mezi sebou propojených do stromové struktury a je schopna se vypořádat i z pádem kteréholiv z uzlů. To je zajištěno vytvořením nového mesh řešení, které je schopno fungovat s připojením k Internetu i bez připojení. Použití MicroPython umožňuje asynchronní zpracování neblokujícím způsobem. Projekt je postaven pomocí dvou komunikačních protokolů, proprietárního ESP-NOW a běžné WiFi komunikace. Řešení přináší možnosti rychlého vývoje mesh aplikací, ale je silně limitováno pamětí mikrokontrolerů. Funkčnost řešení byla otestovaná pomocí vytvořené demo aplikace se sadou třech testovacích scénářů pro domácí použití.
|
|
|
Detection and identification of aflatoxins by means of portable liquid chromatograph for purpose of control of biological weapons prohibition
Šesták, Jozef ; Lunerová, K.
Method describes screening detection and identification of selected mycotoxins aflatoxins (aflatoxins B1, B2, G1 and G2), ochratoxins A, B and zearalenon by means of portable miniaturzed capillary liquid chromatograph (miniLC) with UV/VIS and fluorescence detector (FLD). The aim of the method is to provide rapid screening method for finding/excluding the presence of given mycotoxins in unknown samples. In case of positive finding, it is necessary to perform confirmation analysis using other instrumental methods (e. g. LC-MS). The method is intended namely for the needs of technical support of the State Office for Nuclear Safety for control and supervising activities in field of execution of the Act No. 281/1997 Coll (Biological Act).
|
|
|
Flexible Load Balancer Using P4 Language
Šesták, Jindřich ; Fukač, Tomáš (referee) ; Martínek, Tomáš (advisor)
Currently servers of internet services are usually grouped together into clusters to provide sufficient performance to serve clients' queries. Each cluster needs Load Balancer, so it can choose one server which will process query from one client. For describing such device that processes packets is convenient to use P4 language. Within this work, the principles of load balancing, design, implementation and testing of a simple Load Balancer described in P4 language were demonstrated. The program is tested using Behavioral model of P4 language on a common processor and on the NFB-200G2QL card thanks to the Netcope environment from the CESNET association
|
|
| |
|
| |
guest ::
RSS feed.