FIRE PERFORMANCE OF COMPOSITE-PANEL SEPARATION WALLS

Composite panel walls with both combustible and non-combustible cores were subjected to fire resistance test to EN 1364-1. The results revealed that the combustible-core panels started emitting smoke on the unexposed side due to the presence of joints between panels. In some cases the smoke emission started early after the start for the fire exposure. The start of the smoke production period appeared to depend on the fixation of the panels to the furnace frame; three or four sides fixed as per EN 1364-1. The amounts of smoke released indicate that although smoke leakage/production criterion is not currently part of the standard fire-resistance testing protocol it should be assessed when construction elements with combustible components are tested. Otherwise such a barrier may not be considered as a smoke-safe separating element, because model FED calculations indicate a potential threat to the occupants on the unexposed side at a certain set of conditions

Valuation of a selected company

This diploma thesis deals with the valuation of LAPP KABEL s.r.o. The company focuses on the sale of industrial cables, conductors and other cable accessories for different industries and markets, such as the automotive industry, machinery and electrical and installation engineering. The aim of the thesis is to estimate the market value of this company with using the method of DCF Entity. As a supportive method is used valuation by market comparison using sector multipliers. The main parts of the thesis are financial and strategic analysis, the forecast of the main value drivers, financial plan and at the end of the thesis is an estimated market value of the company.Tato diplomová práce se zabývá oceněním společnosti LAPP KABEL s.r.o. Společnost se zaměřuje na prodej průmyslových kabelů, vodičů a dalších kabelových příslušenství pro řadu oborů, jako je například automotive průmysl, výroba strojů a elektrické a instalační inženýrství. Hlavním cílem práce je určení tržní hodnoty společnosti, kdy jako hlavní metoda pro ocenění je stanovena metoda DCF Entity. Jako podpůrný nástroj je využito ocenění tržním porovnáním pomocí odvětvových násobitelů. Stěžejními součástmi práce jsou finanční a strategická analýza, na kterou navazuje prognóza hlavních generátorů hodnoty, finanční plán a na závěr práce odhad tržní hodnoty společnosti

Financial and strategic analysis of the company Diama s.r.o.

The aim of this bachelor's thesis is to perform financial and strategic analysis of the company Diama s.r.o. during years 2008-2012. This thesis is divided into two parts. First part is theoretical and introduces methods of financial and strategic analysis. In the second part, which is called practical, is whole financial and strategic analysis performed and it is based on the knowledge of the theoretical part. The conclusion summarizes the results and assesses the company's future prospects

FIRE PERFORMANCE OF COMPOSITE-PANEL SEPARATION WALLS

Composite panel walls with both combustible and non-combustible cores were subjected to fire resistance test to EN 1364-1. The results revealed that the combustible-core panels started emitting smoke on the unexposed side due to the presence of joints between panels. In some cases the smoke emission started early after the start for the fire exposure. The start of the smoke production period appeared to depend on the fixation of the panels to the furnace frame; three or four sides fixed as per EN 1364-1. The amounts of smoke released indicate that although smoke leakage/production criterion is not currently part of the standard fire-resistance testing protocol it should be assessed when construction elements with combustible components are tested. Otherwise such a barrier may not be considered as a smoke-safe separating element, because model FED calculations indicate a potential threat to the occupants on the unexposed side at a certain set of conditions

Three-Dimensional Printing Process for Musical Instruments: Sound Reflection Properties of Polymeric Materials for Enhanced Acoustical Performance

Acoustical properties of various materials were analyzed in order to determine their potential for the utilization in the three-dimensional printing process of stringed musical instruments. Polylactic acid (PLA), polyethylene terephthalate with glycol modification (PET-G), and acrylonitrile styrene acrylate (ASA) filaments were studied in terms of sound reflection using the transfer function method. In addition, the surface geometry parameters (Sa, Sq, Sz, and Sdr) were measured, and their relation to the acoustic performance of three-dimensional-printed samples was investigated. It was found that a higher layer height, and thus a faster printing process, does not necessarily mean poor acoustical properties. The proposed methodology also proved to be a relatively easy and rapid way to test the acoustic performance of various materials and the effect of three-dimensional printing parameters to test such a combination at the very beginning of the production process

Design of an Intelligent Tutoring System to Create a Personalized Study Plan Using Expert Systems

The article is devoted to the issue of the construction of an intelligent tutoring system which was created by our university for implementing distance learning and combined forms of studies. Significantly higher demand for such tools occurred during the COVID-19 pandemic when distance learning was used by students in their full-time studies. Current Learning Management Systems (LMS) do not address students’ individuality regarding their various levels of input knowledge and skills or their different learning styles, which, in our case, are based on sensory preferences. Therefore, this article proposes a model of an intelligent tutoring system to control learning by accentuating the individual needs of a student. The foundation stones of this system are an expert system and adaptation mechanisms. The expert system acts as a tool for the identification of students’ needs from the point of view of input knowledge and sensory preferences. Sensory preferences influence the student’s learning style. The implemented adaptation mechanisms control the progress of the student through a study unit. The model was implemented in the LMS Moodle environment. Regarding the focus of the research content, our model is oriented on the study of the English language, where each student receives a unique study plan, which is continuously adapted based on achieved results. We consider the focus on the individuality of the student to be an innovative approach that can be achieved automatically on a mass scale

Three-dimensional printing process for musical instruments: Sound reflection properties of polymeric materials for enhanced acoustical performance

Acoustical properties of various materials were analyzed in order to determine their potential for the utilization in the three-dimensional printing process of stringed musical instruments. Polylactic acid (PLA), polyethylene terephthalate with glycol modification (PET-G), and acrylonitrile styrene acrylate (ASA) filaments were studied in terms of sound reflection using the transfer function method. In addition, the surface geometry parameters (Sa, Sq, Sz, and Sdr) were measured, and their relation to the acoustic performance of three-dimensional-printed samples was investigated. It was found that a higher layer height, and thus a faster printing process, does not necessarily mean poor acoustical properties. The proposed methodology also proved to be a relatively easy and rapid way to test the acoustic performance of various materials and the effect of three-dimensional printing parameters to test such a combination at the very beginning of the production process.Tomas Bata University in Zlin, TBU: IGA/FT/2023/006; Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT: RP/CPS/2022/003Ministry of Education, Youth, and Sports of the Czech Republic; project DKRVO [RP/CPS/2022/003]; TBU [IGA/FT/2023/006

Morphogenetic systems for resource bounded computation and modeling

A further exploration is presented of recent approaches to morphogenetic processes where geometry and form are fundamental primitives. Prior bottom-up approaches in morphogenetic modeling usually target a specific biological process aiming for optimal fidelity. We take a novel, more integrative and more abstract view of these phenomena and aim at properties such as (computational) universality, homeostasis, self-reproduction or self-healing, in both living and artificial evolving systems with explicit geometric 3D arrangements. We refine the recently introduced model of M systems (for morphogenetic systems) that leverages certain constructs in membrane computing and DNA self-assembly. The model is still based on local interactions of simple atomic components under explicit geometric constraints given by their shapes and spatial arrangements. We demonstrate two types of capabilities of the extended models. First, they are computationally universal in the Turing sense because they can simulate Turing machines very efficiently, with only a linear slowdown factor. Furthermore, they have the theoretical capability to probabilistically solve NP-hard problems in polynomial time. Second, more importantly, they unfold to exhibit certain macro-properties characteristic of living organisms (particularly, the ability of self-assembly of complex structures, self-reproduction and self-healing) as global properties observable at the macro-level, without explicit programming of these properties beyond simple rules of interaction. Besides providing a new theoretical background for this type of model, we provide quantitative evidence of these properties in a simple cell-like M system model. These results have been obtained using an M system simulator and visualizer that is available as open source software for further research in this area

From P systems to morphogenetic systems: an overview and open problems

Morphogenetic (M) systems are an abstract model of computation inspired by morphogenetic processes in living cells and organisms. They were created as a generalization of P systems with proteins on membranes. Abstract cells are not used as atomic elements but they can be assembled from simpler primitives called tiles with pre-defined shapes, sizes and changeable positions in 2D or 3D Euclidean space. This additional level of realism provides a closer relation to fields as synthetic or systems biology. We summarize known results on M systems which include studies of computational universality, computational efficiency in solving intractable problems, and we discuss their relation to other models of P systems. An important capability of M systems is their robustness under injuries and their self-healing properties which has been established theoretically and verified experimentally. Finally, we present results of computational experiments inspired by cell mitosis processes. All topics are accompanied with related open problems

Device for influencing and monitoring changes in material during shear stress

Technické řešení se týká zařízení pro ovlivňování a přímé sledování změn materiálů v průběhu smykového namáhání při reologických měřeních a dále při ultrafialovém vytvrzování. Lze jej využít pro výzkum, vývoj a testování zejména polymerních materiálů.Technical solution deals with the device for inducing changes in material during shear stress and for their observation during rheological measurements and also during ultraviolet curing process. Such device can be used for research, development and testing of new, namely polymeric materials