Design Methodology for Testing the Possibility of Electricity Meters according to EN 50160

Bakalářská práce pojednává o elektroměrech a jejich možnostech měřit kvalitu elektřiny a návrhu metody testování zvolených parametrů. Popisuje charakteristiky nízkého napětí dodávané z veřejných distribučních sítí a jejich meze podle kterých se kvalita elektřiny určuje. Poté provádí průzkum vlastností elektroměrů s ohledem na měření parametrů kvality a vytváří pro vybrané přístroje metodiku testování dle platných norem. Dále tato práce popisuje provedení praktických testů a na závěr této práce je shrnuto vyhodnocení dosažených výsledků.This bachelor thesis examines electricity meters and their ability to measure the quality of electricity. Also, it observes a proposal of a method for testing selected parameters. Moreover, it describes the characteristics of a low voltage supplied from public distribution networks and their limits according to which the quality of electricity is determined. Afterwards, there are the electricity meter’s properties considering the measurement of quality parameters investigated and a methodology of testing according to valid standards for selected instruments is developed. Furthermore, this work describes the implementation of practical tests and in the conclusion of this work evaluation of the results.450 - Katedra kybernetiky a biomedicínského inženýrstvívelmi dobř

Automation of the Assembly Line for Checking the Brake of the Internal Gearbox

Tato diplomová práce se zabývá návrhem a realizací přípravy pro automatizaci pracovní linky s cílem manipulace s ověřovaným dílem pro zajištění vhodné testovací polohy. Test funkce bude provedena na brzdovém systému vnitřní převodovky. Popisuje návrh a provedení zakládání do testovacího přípravku, dále rozebírá komunikaci mezi komponentami řídicího systému, návrh a implementaci pro PLC, vizualizaci a zpracování dokumentace. V závěru této práce jsou shrnuty dosažené výsledky řešení a celkové zhodnocení.This diploma thesis describes the design and implementation of a preparation for the an automation of work lines with an aim of manipulating a verified part to ensure a suitable test position. The test function will be performed on braking system of internal gear. It describes the design and implementation of the test product, further discusses the communication between the components of the control system, design and implementation for PLC, visualization and processing of documentation. At the end of this work, the achieved results of the solution and the overall evaluation are summarized.450 - Katedra kybernetiky a biomedicínského inženýrstvívelmi dobř

Unraveling the nature of coherent beatings in chlorosomes.

Coherent two-dimensional (2D) spectroscopy at 80 K was used to study chlorosomes isolated from green sulfur bacterium Chlorobaculum tepidum. Two distinct processes in the evolution of the 2D spectrum are observed. The first being exciton diffusion, seen in the change of the spectral shape occurring on a 100-fs timescale, and the second being vibrational coherences, realized through coherent beatings with frequencies of 91 and 145 cm(-1) that are dephased during the first 1.2 ps. The distribution of the oscillation amplitude in the 2D spectra is independent of the evolution of the 2D spectral shape. This implies that the diffusion energy transfer process does not transfer coherences within the chlorosome. Remarkably, the oscillatory pattern observed in the negative regions of the 2D spectrum (dominated by the excited state absorption) is a mirror image of the oscillations found in the positive part (originating from the stimulated emission and ground state bleach). This observation is surprising since it is expected that coherences in the electronic ground and excited states are generated with the same probability and the latter dephase faster in the presence of fast diffusion. Moreover, the relative amplitude of coherent beatings is rather high compared to non-oscillatory signal despite the reported low values of the Huang-Rhys factors. The origin of these effects is discussed in terms of the vibronic and Herzberg-Teller couplings

Monitoring and Control Network Using Cisco ASA Firewall

Import 22/07/2015Tato bakalářská práce se věnuje monitoringu, zabezpečení a správy sítě pomocí Cisco ASA firewallu. Jsou zde popsány typy firewallů, grafické znázornění zapojení do sítě, sběr dat, filtrování protokolů, použití inspekce a možnosti použití modulu IPS/IDS. Pro konfiguraci firewallu jsem použil příkazový řádek CLI.This bachelor thesis is dedicated to monitoring, security and network management using Cisco ASA firewall. There are described types of firewalls, graphical representation of networking, data collection, filtering, using inspection and the possibility of using IPS modul. To configuration firewall I used the command line CLI.440 - Katedra telekomunikační technikydobř

Accounting System

The aim of the work is to design and implement a basic interface of a web information system for the accounting management that corresponds to the Czech legislation. The project contains a brief introduction to the subject of accounting and the terms of proper evidence of receipts and expenditures, which are significant for basic income-tax computing. The results of the work are the requirements analysis, the system design considering the user options and needs and the description of the system implementation process with reference to used technology. In addition, the work includes a description and comparison of four commercial products from the user point of view, which became an initial point for requirements determination

The future of volunteering in extreme weather events: Critical reflections on key challenges and opportunities for climate resilience

Volunteers are playing a significant role in interacting with ongoing societal shocks and stresses, such as mobilising resources and supporting responses to extreme weather events. Their actions contribute to the pursuit of local climate resilience by shaping the local level and influencing socio-ecological systems. Therefore, academics, communities, practitioners and policymakers responsible for understanding, encouraging, developing and sustaining volunteering activity can benefit from critical reflections on volunteering in extreme weather events in order to support ongoing research initiatives, future research and policy agendas, and the development of funding strategies and public programs for climate resilience. This Policy Forum paper critically reflects on the current status of volunteering for extreme weather events and local climate resilience, using experiences from flood risk management, to identify key challenges and opportunities for the future. It builds on the ESRC CASCADE-NET project in discussing both academic puzzles and practical challenges faced in volunteering for local climate resilience in an attempt to bridge gaps and foster further debates between theory and practice. These insights are drawn from a series of dialogic exchanges that reflect the authors’ diverse perspectives and lived experiences of volunteering that emerge in their research and practice in England, the Czech Republic, and The Netherlands. We identify and share ten urgent challenges, followed by discussion of four cross-cutting themes that exist: volunteers as a renewable energy source, stakeholder narratives of volunteering, learning from other contexts, and transformative resilience. In exploring the futures of volunteering, this Policy Forum challenges existing thought by proposing the need to move beyond traditional narratives of ‘the volunteer’ and ‘volunteering’ to a more inclusive and nuanced understanding. Through this, we believe that volunteering can play an essential role in pursuing a just transition, with volunteers being able to challenge the status quo to contribute to transformative climate resilience practice and policy

Multi-View Proxemics: Distance and Position Sensitive Interaction

We present work at a previously unexplored intersection of two research areas: proxemic interaction and multi-view display technologies. Multi-view proxemic systems concurrently deliver distinct views from a single display to different viewers depending on a combination of their angle to the display and their distance from it. In this paper we demonstrate the capability to design such an interactive system using only commodity hardware and software. We describe two systems and present results of two user studies with 18 participants. The studies are based on two real-world scenarios of a departure board and a video player (with subtitles). Our results show that multi-view proxemic systems are accurate and that users find them useful and would use them if they were available. We also discuss some of the design and technological implications of our work

Subtle Gaze-Dependent Techniques for Visualising Display Changes in Multi-Display Environments

This paper explores techniques for visualising display changes in multi-display environments. We present four subtle gaze-dependent techniques for visualising change on unattended displays called FreezeFrame, PixMap, WindowMap and Aura. To enable the techniques to be directly deployed to workstations, we also present a system that automatically identifies the user’s eyes using computer vision and a set of web cameras mounted on the displays. An evaluation confirms this system can detect which display the user is attending to with high accuracy. We studied the efficacy of the visualisation techniques in a five-day case study with a working professional. This individual used our system eight hours per day for five consecutive days. The results of the study show that the participant found the system and the techniques useful, subtle, calm and non-intrusive. We conclude by discussing the challenges in evaluating intelligent subtle interaction techniques using traditional experimental paradigms. Author Keywords multi-display environments; computer vision; subtle interaction; attentive user interfaces; notifications ACM Classification Keyword