121 research outputs found
Data resources analysis of third parties in the Internet environment
Bakalárska práca sa zaoberá návrhom a tvorbou systému pre prácu s dátovými zdrojmi tretích strán, hlavne API rozraní služieb Facebook a Twitter a Expedia. Systém sleduje profily na sociálnych sieťach, ich údaje a pridávaný obsah. Systém umožňuje sledovanie úspešnosti jednotlivých profilov na sociálnych sieťach. Systém sa skladá z viacerých modulov a je navrhnutý tak, aby ho v búdúcnosti bolo možné rozšíriť o ďalšiu funkcianalitu.This bachelor’s thesis is about planning and making of system, which working with thirdparty data sources, mainly Facebook API, Twitter API and Expedia API. This system is monitoring profiles on social networks, their data and content. The system allows monitoring the success of individual profiles on social networks. The system consists of several modules and in the future the system could be extended to include other functionality.
Development of Redox Proteomic Techniques to Profile Cysteine Post-translational Modifications in the Myocardium
Once thought to be an unfortunate consequence of aerobic life, the generation of reactive oxygen and nitrogen species (ROS / RNS) is now known to be integral to the proper functioning of the cell. Cysteine (Cys) residues in proteins show all the necessary properties to act as a sensor / responder to redox signals. The potential role for Cys residues in both the physiological function and pathological dysfunction of the cell has lead to much interest in the identification of target proteins / cellular processes and sites regulated by Cys post-translational modification (PTM). Progress in this area has been hampered however, by a relative lack of experimental methods for the study of these sites on a global scale. Thus, the aims of this thesis were to develop enrichment techniques which were robust, sensitive, reproducible and specific in the enrichment of Cys PTM sites, and to apply these technique(s) to the study of ischemia / reperfusion (IR) injury, which is known to be ameliorated by antioxidant interventions. Enrichment of reversible Cys PTM was carried out following their reduction to the thiol by the chemistry of thiol-dislufide exchange (TDE). An additional technique was developed to identify sites forming over-oxidised or irreversible Cys PTM (sulfinic and sulfonic acid) utilising orthogonal separation by strong cation exchange and hydrophilic interaction liquid chromatography (SCX-HILIC). The techniques developed in this thesis were used to profile 6559 unique reversible Cys PTM sites on 2694 proteins and 188 Cys sites on 142 proteins. The techniques were then adapted and utilised to measure changed Cys PTM occurring during IR injury in the presence and absence of antioxidant intervention. Overall, these techniques have lead to a substantial increase in the knowledge of Cys PTM sites in the literature as well as potential processes affected by redox
The system for multimedia data managing and their distribution
Táto práca sa zaoberá popisom a návrhom riešenia systému pre správu multimediálnych dát a ich distribúciu. Systém umožňuje užívateľom nahrávanie multimediálnych súborov v rôznych formátoch, ktoré sú následne distribuované do zariadení, na ktorých sa prehrávajú. Systém vytvára prehľad prehrávania multimediálnych súborov na zariadeniach na základe záznamov, ktoré zariadenia do systému posielajú. V práci sú popísané technológie použité pri tvorbe systému. Ďalej sa v práci nachádza popis štruktúry systému, jeho jednotlivých funkcií a popis riešenia systému.This thesis is about description and design of system for media files management and their distribution. System allows users to upload media files in different formats. Media files are distributed to devices on which they are played. The system creates an overview of the playback based on records that the device sent to the system. The thesis describes the technology used to create the system. Furthermore, the work is a description of the structure of the system, its functions and a description of system implementation.
Nový prútový konečný prvok pre elektro-tepelné analýzy FGM materiálov
In this contribution, new electro-thermal link finite element for Functionally Graded Materials (FGM) will be presented. Spatial variation of material properties as well as varying convection effect will be considered. FEM equations describing the behaviour of the link element will be based on semi-analytical calculation of ordinary differential equations describing coupled electro-thermal problem.V predkladanom príspevku bude prezentovaný nový elektro-tepelný prútový konečný prvok pre Funkcionálne Gradované Materiály (FGM), pričom bude uvažovaná priestorová premenlivosť materiálových vlastností a pôsobenie premenlivej konvekcie na prút. Budú prezentované nové MKP rovnice opisujúce správanie sa prúta, založené na semi-analytickom výpočte obyčajných diferenciálnych rovníc popisujúcich previazanú elektro-tepelnú úlohu
Piezoelectric finite beam element with FGM core for mechatronic applications
The paper deals with finite beam element with piezoelectric layers and functionally graded material of core. In the paper homogenization of FGM material properties and homogenization of core and piezoelectric layers is presented. In the process of homogenization direct integration method and multilayer method is used. The concept of transfer functions and transfer constants is used for computation of individual submatrices. Functionality of new FGM finite beam with piezoelectric layers is presented by numerical experiments. Static, harmonic and full transient piezoelectric analysis of FGM beams with piezolayers is presented
Interactive web presentation of audiovisual works
Bakalárska práca obsahuje prezentáciu audiovizuálnych diel spracované kalsifikátorom založenom na neurónových sieťach (deep learning a umelá inteligencia). Práca sa zaoberá nahrávaním video súborov do webovej aplikácie a ich následným prehraním na webovej stránke. K videám sú pridané dáta, ktoré boli spracované neurónovými sieťami. Tieto dáta sú rozdelené podľa klasifikácie do daných tagov, v ktorých je zapísané čo sa na danom snímku práve nachádza. Pomocou týchto tagov sa dajú klasifikovať videá a taktiež sa tieto klasifikácie zobrazujú v reálnom čase počas prehrávania videa.The bachelor thesis contains a presentation of audiovisual works processed by a calibrator based on neural networks (deep learning and artificial intelligence). The work deals with uploading video files to a web application and then playing them on a website. Data, that have been processed by neural networks, are added to the videos. This data is divided according to the classification into given tags, in which it is written what is currently in the image of video. These tags can be used to classify videos, and these classifications are also displayed in real time during video playback.
Modelling the effects of oscillating stripe cooling during a loca event in a vver440/213 reactor pressure vessel
A Loss of Coolant Accident (LOCA) is initiated by damage in the primary circuit and subsequent coolant leak of a pressurised water reactor (PWR). The loss of coolant is then compensated by the Emergency Core Cooling System (ECCS) [1]. This system supplies the primary circuit with cold high pressure coolant during emergencies. The mixing of this cold coolant results in stripe cooling of the RPV wall. This article focuses on the modelling of the mixing processes of this cooling stripe and their effects on the RPV wall in a VVER440/213 Russian type PWR. The mixing processes are modelled in a transient thermohydraulic analysis which models the mixing of the coolant flows in the reactor pressure vessel and results in the overtime temperature and pressure fields within the RPV [2]. The analysis results show that the cooling stripe is not stationary. The turbulent mixing causes an unstable oscillatory motion of the cold stripe which has a notable effect on the RPV wall temperature distribution. Selected results were subsequently transferred into a thermo-mechanical analysis via one way coupling method. This analysis was performed to evaluate the PRV loading state during the LOCA transient. Where the loading stresses were shown to correspond to the oscillatory nature of the cooling strip. In conclusion, an oscillating cooling strip can result in multiple loading cycles [3,4] of the reactor pressure vessel wall during a single LOCA transient or ECCS high pressure coolant injection
New coupled thermoelectric link finite element for FGM materials
The paper deals with derivation process of new FEM equations for steady
thermoelectric two-way coupled analysis of link conductor made of Functionally Graded
Material (FGM). One example of coupled analysis will be introduced to demonstrate accuracy
and effectiveness of our new approach in computer modelling of such systems
Ananlysis of actuator made of fgm using new electro-thermo-mechanical finite elements
Actuator is a mechatronic system that transforms one type of energy (e.g.
electric energy) into the mechanical displacement and mechanical force (mechanical energy).
Nowadays, these actuators can be made of Functionally Graded Materials (FGM)
to ensure simple shape of the actuator and to improve its effectiveness, particularly for
micro systems. FGM is built as a mixture of two or more constituents which have almost
the same geometry and dimensions. The variation of macroscopic material properties can
be induced by variation of both the volume fractions and material properties (e.g. by a
non-homogeneous temperature field) of the FGM constituents.
The paper deals with a new approach in analysing of the systems made of FGM using
our new beam finite elements. Multiphysical analysis (weak coupled electro-thermomechanical
analysis) and spatial continuous variation of material properties are supported.
The analysis of the micro actuator with constant cross section made of FGM is presented
in the paper. This simple-shaped actuator is supplied by electric current and the efficiency
of the actuator is optimised. The solution results will be compared with those obtained
by using solid elements of a FEM commercial program
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