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Noise generator for electric cars
Sleiman, Adham ; Horák, Aleš (referee) ; Bazala, Jiří (advisor)
Tato bakalářská práce se zabývá mnohostrannými aspekty generování hluku u elektrických vozidel. Prozkoumává předpisy, průmyslové postupy a představuje inovativní modely generování hluku, které posouvají naše porozumění této se objevující problematice. Výsledky výzkumu mohou vést k vývoji tišších a udržitelnějších elektrických vozidel, přispívajících k pozitivnímu uživatelskému zážitku a harmonickému soužití s životním prostředím.
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Quantitative Analysis of Gene Ancestry in Euglenoidea
Soukal, Petr ; Hampl, Vladimír (advisor) ; Burki, Fabien (referee) ; Horák, Aleš (referee)
Genes, units of genetic information, are passed from one individual to another, typically within the same species from parents to offspring. Occasionally, genes can be transferred to different species through a process called horizontal gene transfer (HGT). Endosymbiosis is a process in which one organism engulfs another organism and the genes flow between the two symbionts in a process called endosymbiotic gene transfer (EGT), which is a subtype of HGT. Eventually, the endosymbiont may become an organelle such as a mitochondrion or a plastid. Euglenids (Euglenoidea) are unicellular eukaryotes with diverse modes of nutrition - phagotro- phy (e. g., Peranema), osmotrophy (e. g., Rhabdomonas), mixotrophy (phagotrophy and phototrophy in Rapaza), and phototrophy (possessing plastids; e. g., Eutreptiella). The history of endosymbioses of green algae (especially Chlorophyta) and ancestors of Euglenophyceae (including Rapaza) is complex. In my thesis, I performed the quantitative analysis of gene ancestry (QAGA) based on transcripto- mic data of Euglena gracilis showing contribution of closely related Kinetoplastea (1,420 genes, 3.88 % of transcripts inherited vertically), and contribution of multiple "unrelated" (mainly) phototrophic organisms, e. g. Viridiplantae (572, 1.57 %), or Haptophyta (234, 0.64...
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Automatic linking of lexicographic sources and corpus data
Bejček, Eduard ; Lopatková, Markéta (advisor) ; Horák, Aleš (referee) ; Žabokrtský, Zdeněk (referee)
Along with the increasing development of language resources - i.e., new lexicons, lexical databases, corpora, treebanks - the need for their efficient interlinking is growing. With such a linking, one can easily benefit from all their properties and information. Considering the convergence of resources, universal lexicographic formats are frequently discussed. In the present thesis, we investigate and analyse methods of interlinking language resources automatically. We introduce a system for interlinking lexicons (such as VALLEX, PDT-Vallex, FrameNet or SemLex) that offer information on syntactic properties of their entries. The system is automated and can be used repeatedly with newer versions of lexicons under development. We also design a method for identification of multiword expressions in a parsed text based on syntactic information from the SemLex lexicon. An output that verifies feasibility of the used methods is, among others, the mapping between the VALLEX and the PDT-Vallex lexicons, resulting in tens of thousands of annotated treebank sentences from the PDT and the PCEDT treebanks added into VALLEX. Powered by TCPDF (www.tcpdf.org)
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Music education textbooks for primary schools between 1968 and 1989
Horák, Aleš ; Dvořáková, Jiřina (advisor) ; Váňová, Hana (referee)
Main topic of this bachelor thesis is analysis of the Czechoslovakian music education textbooks for the lower secondary education that were published between 1968 and 1989. This social science oriented theoretical thesis focuses on the tendencies of the former political era in context to the functional parts of the textbooks. The thesis later, based on the acquired insight to the problematics, puts specific tendentious elements of the textbooks into social-historical context and creates a summary of these elements. At the same time it also compares music education textbooks published in the 70's to the textbooks published in the 80's based on ther formal structure, clarity and didactic value. Horák Aleš (B HV-D)
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Discovering the structure of natural language sentences by semi-supervised methods
Rosa, Rudolf ; Žabokrtský, Zdeněk (advisor) ; Tiedemann, Jörg (referee) ; Horák, Aleš (referee)
Discovering the structure of natural language sentences by semi-supervised methods Rudolf Rosa In this thesis, we focus on the problem of automatically syntactically ana- lyzing a language for which there is no syntactically annotated training data. We explore several methods for cross-lingual transfer of syntactic as well as morphological annotation, ultimately based on utilization of bilingual or multi- lingual sentence-aligned corpora and machine translation approaches. We pay particular attention to automatic estimation of the appropriateness of a source language for the analysis of a given target language, devising a novel measure based on the similarity of part-of-speech sequences frequent in the languages. The effectiveness of the presented methods has been confirmed by experiments conducted both by us as well as independently by other respectable researchers. 1
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Phase Changes on Heat Exchanger Surfaces with Hollow Fibers
Kůdelová, Tereza ; Horák, Aleš (referee) ; Dohnal, Mirko (referee) ; Raudenský, Miroslav (advisor)
The thesis focuses on the polymer hollow fibres heat exchangers. The main object of the research is the formation and process of condensation on the outer surface of fibres and the effect of phase change on the heat transfer. The study deals with the influence of the geometry of the heat exchnager on the heat transfer and the condensation process. Fatigue tests of polymeric hollow fibres exchangers are also part of the work. The work provides an overview of the possible use of such heat exchangers in industrial applications associated with condensation.
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Airplane Cooling System Optimization
Lajza, Ondřej ; Fiľakovský, Karol (referee) ; Horák, Aleš (referee) ; Píštěk, Antonín (advisor)
Dissertation thesis is focused on the aircraft cooling system optimization. The knowledge of the pressure loss is necessity for design of an optimal system. In the beginning of the thesis, the different designs of piston engine cooling systems are described for both aircrafts and automobiles. Other sections outline the determination of the coolers characteristics and describe the different test sections applicable for the characteristics measurement. The test section built at the Institute of the aerospace engineering is described as well. Practical part of the thesis describes the calibration of the test section. The measurements of the specific coolers were compared with the CFD simulation of two models - the simplified cooler model and cooler element model. Additionally, the measurements were compared with results obtained at specialized coolers testing facility.
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Diversity of prasinophyte algae related to the euglenid plastid
Lukešová, Soňa ; Hampl, Vladimír (advisor) ; Horák, Aleš (referee)
Euglenophyceae represent a group of unicellular eukaryotic organisms that have gained during their evolution the ability to photosynthesize. They aquired plastids via secondary endosymbiosis with a green alga as the plastid donor. Phylogenetic studies searching for the origin of this organelle revealed the green alga Pyramimonas parkeae from Prasinophytes as the closest known relative to euglenid plastids. Pyramimonas parkeae and Euglena share several genes clusters with unique order of genes in their plastid genomes, which also point to the Pyramimonadales as the donor of the plastids. However, it is posible, that organisms more closely related to euglenid plastids than P. parkeae, occur in the environment. In my diploma thesis I focused on the exploration of diversity of Pyramimonadales and Euglenophyceae in environmental samples. I used several approaches to perform this task. I amplified parts of the plastid genomes in environmental samples by using specific PCR and determined their position in the phylogenetic tree. I also made large-scale phylogenetic analyses based on 16S rRNA and 18S rRNA sequences from representatives of the groups Euglenophyceae, Prasinophytes and environmental samples. The results revealed the presence of a large number of environmental sequences relative to the...
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Automatic linking of lexicographic sources and corpus data
Bejček, Eduard ; Lopatková, Markéta (advisor) ; Horák, Aleš (referee) ; Žabokrtský, Zdeněk (referee)
Along with the increasing development of language resources - i.e., new lexicons, lexical databases, corpora, treebanks - the need for their efficient interlinking is growing. With such a linking, one can easily benefit from all their properties and information. Considering the convergence of resources, universal lexicographic formats are frequently discussed. In the present thesis, we investigate and analyse methods of interlinking language resources automatically. We introduce a system for interlinking lexicons (such as VALLEX, PDT-Vallex, FrameNet or SemLex) that offer information on syntactic properties of their entries. The system is automated and can be used repeatedly with newer versions of lexicons under development. We also design a method for identification of multiword expressions in a parsed text based on syntactic information from the SemLex lexicon. An output that verifies feasibility of the used methods is, among others, the mapping between the VALLEX and the PDT-Vallex lexicons, resulting in tens of thousands of annotated treebank sentences from the PDT and the PCEDT treebanks added into VALLEX. Powered by TCPDF (www.tcpdf.org)
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Automatic Analysis of Temporal Relations Within a Discourse and Its Application Within a Machine Translation Framework
Němec, Petr ; Hajičová, Eva (advisor) ; Sgall, Petr (referee) ; Horák, Aleš (referee)
In this thesis we present a developed system of automatic analysis of temporal relations within a discourse for Czech and discuss possibilities to use the system to enhance a Czech-to-English machine translation system. We introduce the respective components related to this scenario: the scheme of annotation of temporal relations within a discourse, the created corpus annotated for temporality, the system of automatic analysis of temporal relations itself, the generative component of a Czech-to-English machine translation system producing English sentences and the experiments with improving the quality of this component by adding the information on temporal relations. Furthermore, in connection to the generative component, we present an implemented tree-rewriting formalism that allows for the required tree transformations.
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