Biometric Performance Testing of Signature Technology

Bakalářská práce je zaměřena na možnosti biometrie dynamiky podpisu. První část je věnována obecnému vysvětlení základních pojmů a standartů pro měření efektivnosti. Vysvětluje problematiku zpracování charakteristik podpisu. Popisuje zařízení vhodné pro snímaní dynamických složek podpisu. Hlavní část se zabývá návrhem testů schopnosti verifikace a identifikace uživatelů a testy možností oklamání zařízení. Uvádí návrh a implementací programu pro identifikaci. Zaznamenává průběh a výsledky všech provedených testů.This bachelor thesis is focused to possibilities of biometrics of dynamics signature. The first part is devoted to general explanations of basic concepts and standards for measuring effectiveness. Explains the problematics of processing characteristics of the signature. Descibes the equipment of the appropriate components for capturing the dynamic signature. The main section deals with testing abillities of verification of user and identification and testing the posibillities of deception devices. Presents design and implementation of program for identification. Records the progress and results of all performed tests.

Piston Rings of Modern Diesel Engines

Tato bakalářská práce je zaměřena na pístní krouţky soudobých vznětových motorů a je rozdělena do několika kapitol. První kapitola řeší funkce pístních krouţků a poţadavky na ně kladené, v další kapitole nalezneme rozdělení dle typu krouţku a konstrukčního řešení. předposlední kapitola rozebírá materiály nejčastěji pouţívané při výrobě pístních krouţků a v poslední kapitole nalezneme nejčastěji pouţívané povrchové úpravy.This bachelor thesis concentrates on piston rings and is divided into several points. First point deals with the functions of piston rings and with the demands for them, in the second point there is a division according to the type of the ring and constructing solution. Another chapter deals with materials that are used the most when fabricating piston rings and the last chapter deals with the surfacing that is used the most.

Crank Train of a V6 Compression-ignition Engine

Tato diplomová práce se zabývá návrhem klikového mechanismu vidlicové šestiválcové vznětové pohonné jednotky se zaměřením na konstrukci klikového hřídele. Návrh je rozdělen do dvou fází: koncept a dispozice. Ve fázi konceptu jsou navrženy parametry celé pohonné jednotky a provedeny základní 1D analýzy. Ve fázi dispozice je provedena detailnější 3D analýza zatížení klikového hřídele za použití pokročilých výpočetních metod založených na systémech MKP (Metody Konečných Prvků) modelů a MBS programů (dynamika soustavy těles). Na základě dat zatížení je proveden výpočet únavové životnosti klikového hřídele. Práce je dále doplněna o výkresovou dokumentaci klikového hřídele.This master thesis, concentrated on crank train mechanism of diesel V6 engines with special focus on design and construction of crankshaft, is divided in two main phases. First phase is concept, which contains brief introduction of diesel V-engines construction, parameters of chosen engine unit, especially crank train mechanism, design of crankshaft and 1D analysis of torsional vibrations. Second phase is layout, this phase deals with MBS 3D analysis with flexible FEM models of crankshaft and engine block. These outputs are used for fatigue analysis of crankshaft.

Automated Implementation Process of Machine Translation System for Related Languages

The paper presents an attempt to automate all data creation processes of a rule-based shallow-transfer machine translation system. The presented methods were tested on four fully functional translation systems covering language pairs: Slovenian paired with Serbian, Czech, English and Estonian language. An extensive range of evaluation tests was performed to assess the applicability of the methods

Corpora and evaluation tools for multilingual named entity grammar development

We present an effort for the development of multilingual named entity grammars in a unification-based finite-state formalism (SProUT). Following an extended version of the MUC7 standard, we have developed Named Entity Recognition grammars for German, Chinese, Japanese, French, Spanish, English, and Czech. The grammars recognize person names, organizations, geographical locations, currency, time and date expressions. Subgrammars and gazetteers are shared as much as possible for the grammars of the different languages. Multilingual corpora from the business domain are used for grammar development and evaluation. The annotation format (named entity and other linguistic information) is described. We present an evaluation tool which provides detailed statistics and diagnostics, allows for partial matching of annotations, and supports user-defined mappings between different annotation and grammar output formats

Measurement of the cosmic ray spectrum above 4×10184{\times}10^{18} eV using inclined events detected with the Pierre Auger Observatory

A measurement of the cosmic-ray spectrum for energies exceeding $4{\times}10^{18}$ eV is presented, which is based on the analysis of showers with zenith angles greater than $60^{\circ}$ detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies. Above $5.3{\times}10^{18}$ eV, the "ankle", the flux can be described by a power law $E^{-\gamma}$ with index $\gamma=2.70 \pm 0.02 \,\text{(stat)} \pm 0.1\,\text{(sys)}$ followed by a smooth suppression region. For the energy ($E_\text{s}$) at which the spectral flux has fallen to one-half of its extrapolated value in the absence of suppression, we find $E_\text{s}=(5.12\pm0.25\,\text{(stat)}^{+1.0}_{-1.2}\,\text{(sys)}){\times}10^{19}$ eV.Comment: Replaced with published version. Added journal reference and DO

Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory

The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmic-ray energies and arrival directions. The response of the radio stations in the 30 to 80 MHz regime has been thoroughly calibrated to enable the reconstruction of the incoming electric field. For the latter, the energy deposit per area is determined from the radio pulses at each observer position and is interpolated using a two-dimensional function that takes into account signal asymmetries due to interference between the geomagnetic and charge-excess emission components. The spatial integral over the signal distribution gives a direct measurement of the energy transferred from the primary cosmic ray into radio emission in the AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air shower arriving perpendicularly to the geomagnetic field. This radiation energy -- corrected for geometrical effects -- is used as a cosmic-ray energy estimator. Performing an absolute energy calibration against the surface-detector information, we observe that this radio-energy estimator scales quadratically with the cosmic-ray energy as expected for coherent emission. We find an energy resolution of the radio reconstruction of 22% for the data set and 17% for a high-quality subset containing only events with at least five radio stations with signal.Comment: Replaced with published version. Added journal reference and DO