635 research outputs found

    Microsoft Surface Platform

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    Import 29/09/2010Bakalářská práce se zabývá novou platformou Microsoft Surface. Práce je teoreticko-aplikačního charakteru. V teoretické části je uveden nejdøíve celkový rozbor této platformy, na který navazuje úvod do vývoje aplikací pro tuto platformu. V porovnání s programy pro bìžné počítače jsou zde nemalé rozdíly nejen ve vzhledu, ale i ovládání, a proto jsou v práci uvedena specifika vývoje pro tuto platformu. Práce se také zamýšlí nad možnou budoucností této technologie. Aplikační část se skládá z implementace ukázkové aplikace a její analýzy. Jedná se o jednu aplikaci implementující většinu profilových vlastností této platformy. Díky mnoha možnostem, které nabízí a podpory jedné z největších softwarových společností, se stává vývoj takových aplikací perspektivním oborem. A tato bakalářská práce přispívá k rychlému zorientování se a snadnějšímu začátku práce s touto novou technologií.Bachelor’s work deals with a new platform Microsoft Surface. The work is of both theoretical and practical character. In theoratical section, there is a complete analysis of the platform at first, at which builds introduction to development of applications for this platform. Compared to programmes for casual computers, there are considerable differences in appearance and control, therefore specifics of development for this platform are included in the work. The work thinks about the possible future of this technology. Practical section is consisted of sample application and its analysis. It is a one application implementing most of the main features of this platform. Thanks to the many possibilities and support of one of the biggest software companies, the development of such applications is becoming a promising field. And this bachelor’s work, helps to quick and better beginning of working with this new technologyPrezenční456 - Katedra informatikyvýborn

    Vapor Compression Cycle Solving for Optimal Controller Design

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    Financial analysis of sport facility

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    Import 19/10/2011Tato diplomová práce je zaměřena na finanční rozbor provozu sportovního zařízení – aquaparku ve městě Kravaře. V diplomové práci jsou porovnány tři roky provozu aquaparku. Od roku 2008, kdy byl aquapark otevřen, až do roku 2010 jsou porovnány příjmy v měsících dubnu, červenci a říjnu. Zmíněny jsou i počty návštěvníků v jednotlivých dnech i měsících. Dále jsou zde srovnány náklady v jednotlivých letech. Výsledky jsou zpracovány v tabulkách a grafech. V příloze je uvedená také finanční analýza před samotnou výstavbou sportovního zařízení.This graduation theses sis concentrated on financial analysis of running sport facility – aquapark in Kravaře city. In the graduation theses there is comparison of three years running of aquapark. Since 2008, when the aquapark was openned, to 2010 there is comparation of revenues in april, july and october. There is mention about numbers of visitors in each days and months. There is comparation of costs in each year. Counts are processed to tables and diagrams. In attachement there is financial analysis before construction of this sport facilityPrezenční115 - Katedra managementuvýborn

    Design of control system of two wheels mobile robot

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    Cílem této bakalářské práce je návrh řídicího systému dvoukolého mobilního robotu a následná realizace tohoto systému pomocí dostupných senzorických prostředků a platformy Single-Board RIO firmy National Instruments. V úvodu je obecně nastíněna problematika dvoukolých mobilních robotů coby inverzních kyvadel, následuje přehled několika existujících řešení tohoto problému. Dále je popsán konkrétní robot včetně popisu jeho jednotlivých částí a matematického modelu. Následuje hlavní část práce, a to návrh senzorického a řídicího systému. V závěru práce je popsána realizace navrženého systému na uvedeném robotu a jsou zhodnoceny výsledky funkce navrženého systému.The aim of this bachelor thesis is to design control system of a two-wheel mobile robot and to subsequently implement this system using available sensor devices and National Instruments’ Single-Board RIO platform. The introduction briefly describes the general issue of two-wheel mobile robots as inverted pendulums, followed by an overview of several existing solutions to this problem. The following describes used robot including description of its parts and its mathematical model. Then the main part of the work follows, which is design of the sensory and control system. At the end of the thesis, the implementation is described along with evaluation of the stabilization system results.

    Scheduling on Uniform Processors Revisited

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    We study the problem of scheduling jobs on uniform processors with the objective to minimize the makespan. In scheduling theory this problem is known as Q||Cmax. We present an EPTAS for scheduling on uniform machines avoiding the use of an MILP or ILP solver. Instead of solving (M)ILPs we solve the LP-relaxation and use structural information about the ``closest'' ILP solution. For a given LP-solution x we consider the distance to the closest ILP solution y in the infinity norm, i.e. ∥x−y∥∞. We call this distance max-gap(Aδ), where Aδ is the constraint matrix of the considered (I)LP. For identical machines and δ=Θ(ϵ) the matrix Aδ has integral entries in {0,…,(1+δ)/δ} and O(1/δlog(1/δ)) rows representing job sizes and 2O(1/δlog2(1/δ)) columns representing configurations of jobs, so that the column sums are bounded by (1+δ)/δ. The running-time of our algorithm is 2O(1/ϵlog(1/ϵ)log(C(Aδ))+O(nlogn) where C(Aδ) denotes an upper bound for max-gap(Aδ). Furthermore, we can generalize the algorithm for uniform machines and obtain a running-time of 2O(1/ϵlog(1/ϵ)log(C(A˜δ))+poly(n), where A˜δ is the constraint matrix for a sub-problem considered in this case. In both cases we show that C(Aδ),C(A˜δ)≤2O(1/ϵlog2(1/ϵ)). Consequently, our algorithm has running-time at most 2O(1/ϵ2log3(1/ϵ))+O(nlogn) for identical machines and 2O(1/ϵ2log3(1/ϵ))+poly(n) for uniform machines, the same as the current best algorithm. But, to our best knowledge, no instance is known to take on the value 2O(1/ϵlog2(1/ϵ)) for max-gap(Aδ) or max-gap(A˜δ). If C(A˜δ),C(Aδ)≤poly(1/ϵ), the running-time of the algorithm would be 2O(1/ϵlog2(1/ϵ))+poly(n) and thus improve the running-time of the current best algorithm

    Storage oil hydrolysis during early seedling growth

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    Storage oil breakdown plays an important role in the life cycle of many plants by providing the carbon skeletons that support seedling growth immediately following germination. This metabolic process is initiated by lipases (EC: 3.1.1.3), which catalyze the hydrolysis of triacylglycerols (TAGs) to release free fatty acids and glycerol. A number of lipases have been purified to near homogeneity from seed tissues and analysed for their in vitro activities. Furthermore, several genes encoding lipases have been cloned and characterised from plants. However, only recently has data been presented to establish the molecular identity of a lipase that has been shown to be required for TAG breakdown in seeds. In this review we briefly outline the processes of TAG synthesis and breakdown. We then discuss some of the biochemical literature on seed lipases and describe the cloning and characterisation of a lipase called SUGAR-DEPENDENT1, which is required for TAG breakdown in Arabidopsis thaliana seeds

    The role of cell-matrix interactions in atherosclerosis

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    Atherosclerosis is a complex disorder of the arterial wall characterized by prominent changes in the extracellular matrix and in smooth muscle cells (SMC), which are the predominant resident cells in the vessel wall. During atherogenesis SMC modulate their phenotype from the contractile state to the synthetic state.Biomedical Reviews 1992; 1: 7-12

    An Evaluation Server for Programming Contests

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    Import 11/07/2012Cílem této diplomové práce je prozkoumat veřejně dostupné vyhodnocovací servery pro soutěže v programování. Popsat jejich účel, strukturu, historii a technické aspekty. Ze získaných informací a údajů navrhnout a naimplementovat vlastní vyhodnocovací server. Systém rozdělit do modulů a u každého z nich popsat účel, problémy, návrh řešení těchto problémů a následně provést implementaci navrženého řešení.The goal of this thesis is to examine the publicly available servers for evaluating programming contests. To describe the purpose, structure, history and technical aspects. Then design and implement own server from collected information. Divide the system into modules and describe the purpose, problems and design of solutions of these problems and then to implement the proposed solution.460 - Katedra informatikyvýborn

    Behaviorally Driven Train Timetable Design

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    The focus of this thesis is to include the passengers and their behavior inside the train timetable design. This is done through three main objectives: timetable design based on passenger satisfaction, exploitation of hybrid cyclicity and choice based revenue optimization. At first, a new Passenger Centric Train Timetabling Problem is introduced into the planning horizon of the passenger railway service. This problem is inter-disciplinary. It combines the discrete choice theory, that models the passengers' behavior, and operations research, that decides on the departure times of the trains (i.e. the timetable). The attributes affecting the passengers' choices with respect to the operated timetable are quantified into a single variable of passenger satisfaction. The objective of the proposed model is the trade-off between the profit of the train operating company and the overall satisfaction of the passengers. The problem is tested on the case study of the morning peak hours in S-train network of Canton Vaud in Switzerland. The results not only confirm that the passenger centric timetables outperform the operational timetable of Swiss Federal Railways (SBB), but they also demonstrate that there is a considerable gap between the performance of the cyclic and the non-cyclic timetable. The cause of this gap are the cyclicity constraints and therefore, new types of hybrid cyclicity are proposed and tested. The aim of the hybrid cyclic timetables is to provide similar level of flexibility (passenger satisfaction) as the non-cyclic timetables while keeping a certain level of regularity (cyclicity). The regularity is taken care of by the design and the flexibility is evaluated upon solving of the previously defined Passenger Centric Train Timetabling Problem. The new types of timetables are tested against the existing types on the case study of one day in the whole network of Israeli Railways. It is shown that the hybrid cyclic timetable can achieve both benefits (regularity and flexibility) at the same time. In the last part of this thesis, the passengers' actual choices are obtained through a discrete choice model. The model takes into account fundamental principles in economics such as demand elasticity, ticket price and opt-out option for passengers. Therefore, the probabilistic Elastic Passenger Centric Train Timetabling Problem provides more realistic solutions. Moreover, since the choice is explicitly modeled, the new problem is integrated with a ticket pricing, in order to improve the level of service. In other words, to prevent overcrowding or to secure the service for passengers who need it the most, etc. To summarize, this thesis makes significant contributions in the conceptual design of timetables by taking into account the passengers and their wishes. Indeed, the planning from the operator's point-of-view is in the state-of-the-art, whereas the passengers have been neglected or have been considered only as an abstract concept
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