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Stellenbosch University. Faculty of Medicine and Health Sciences. Interdisciplinary Health Sciences. Family Medicine and Primary Care. / Thesis (MFamMed) -- Stellenbosch University, 2010. / Bibliography / ENGLISH ABSTRACT: Introduction: This thesis summarises the findings of a medical audit on the management of Cryptococcal Meningitis (CM). The study population of HIV positive adults (N = twenty five) were admitted during November 2009 – June 2010 to five hospitals of the Cape Winelands (East) District, Western Cape, South Africa. In the context of the HIV pandemic, CM has become the most common cause of community-acquired meningitis, and has poor outcomes if left untreated. The South African HIV Clinician Society has published treatment guidelines in 2007. These guidelines have been used by the audit team to compile a list of measurable criteria (with set targets) to evaluate the structure, process and outcome of CM management. A pilot audit (2008) at the regional hospital has demonstrated that certain target standards were not met. Aims and Objectives: The aim was to improve the quality of the clinical care of HIV-patients diagnosed with CM in the Cape Winelands (East) district. The objectives included the review of the audit criteria and target standards, demonstrating improvement in quality of CM care at the Level 1 and 2 hospitals, identifying new interventions based on the findings and providing recommendations to the health facilities. Methods In 2009, the researcher formed a new audit team, reviewed the audit criteria and held teaching interventions based on the national treatment guidelines. An intervention, based on the findings of the pilot audit, aimed at improving the clinical team’s adherence to the treatment guidelines. Results The audit identified the following areas that did not meet the target standards: the availability of Amphotericin B (Ampho B) and spinal manometers; the use of manometry in all initial lumbar punctures (LPs); completing fourteen days of the required Ampho B treatment; renal monitoring in patients on Ampho B; commencement of antiretroviral treatment (ART) by week four; and, the two-month survival figures post-diagnosis. The re-audit at the Level 2 hospital highlighted the need for improved medical record keeping to aid the audit process. Arrangement of inpatient ART counselling happened more consistently at the Level 1 hospitals. Adherence to the ART target and measures to prevent Ampho B related morbidity is comparable to that of the Level 2 hospital. The audit has also provided insight to the researcher and audit team on the practical challenges of conducting a prospective data collection technique across different care settings. Recommendations Level 1 hospitals should continue to manage CM patients. The availability of spinal manometers and closer adherence to renal monitoring require attention. Formal feedback to the audit team and clinical teams is planned. A multimodal interdisciplinary Quality Improvement approach (such as an integrated care pathway) is recommended and a future re-audit is encouraged to assess improved adherence to the CM management guidelines. The buy-in of stakeholders (management, health care workers and patients), the ongoing support of an audit team and a committed Quality Improvement environment will allow the medical audit process to become ingrained in the South African public healthcare setting. / AFRIKAANSE OPSOMMING: Inleiding Hierdie tesis bied ‘n opsomming van die sleutelbevindinge van ‘n mediese oudit van Cryptokokkale Menigitis (CM) sorg. Die studie groep van MIV-positiewe volwassenes (N = vyf-en-twintig) het binne-pasiënt behandeling ontvang gedurende November 2009 tot Junie 2010 in vyf hospitale van die Kaapse Wynland (Oos) distrik. In die konteks van die MIV pandemie het CM die mees algemene oorsaak van gemeenskapsverworwe meningitis geword, en het swak uitkomste indien onbehandeld. Die Suid-Afrikaanse HIV Clinici Vereniging het in 2007 behandelingsriglyne gepubliseer. Hierdie riglyne het die oudit span gebruik om ‘n lys van meetbare kriteria (met teiken standaarde) saam te stel om die struktuur, proses en uitkoms fasette van CM sorg te evalueer. ‘n Proef oudit (2008) by die streekshospitaal het getoon dat sekere teiken standaarde nie behaal was nie. Doelstelling Die doelstelling was om die kwaliteit van kliniese sorg van MIV-pasiënte met CM (in die Kaapse Wynland (Oos) distrik) te verbeter. Die doelstelling sluit in die hersiening van die oudit kriteria, die bevesting van verbetering in kwaliteit CM sorg by vlak 1 en 2 hospitale, identifisering van nuwe ingreep-moontlikhede gebaseer op die bevindinge en die verskaffing van toepaslike aanbevelings aan die gesondheidsorg fasiliteite. Metodes Die navorser het in 2009 ‘n nuwe oudit span gevorm, die oudit kriteria hersien en opleidingsingrepe geskoei op die nasionale riglyne gefasiliteer. Opleidingsingrepe, gebaseer op bevindinge van die proef oudit, het ten doel gehad dat die kliniese span die nasionale riglyne nakom. Resultate Die oudit het die volgende areas uitgelig waar daar nie aan die teikenstandaarde voldoen was nie: the beskikbaarheid van Amphotericin B (Ampho B) en spinale manometers; die gebruik van manometrie in alle aanvanklike lumbaal punksies (LPs); voltooi van die veertien dae Ampho B behandelingsteiken; nierfunksie monitoring van pasiënte op Ampho B; aanvang van anti-retovirale behandeling teen week vier; en, die twee maande oorlewing post-diagnose syfers. Die opvolg oudit by die vlak 2 hospitaal bevestig die belang van verbeterde kliniese notas om die oudit proses te vergemaklik. Die reël van binne-pasiënt ART berading gebeur meer bestendig in Vlak 1 hospitale. Bereiking van die ART teiken en maatreëls om Ampho B verwante morbiditeit te voorkom, is vergelykbaar met die bevindinge by die vlak 2 hospitaal. Die oudit het die navorser en die oudit span ingelig rakende die praktiese uitdagings om ‘n prospektiewe data insamelingsmetode te poog in verskillende kliniese kontekste. Aanbevelings Vlak 1 hospitale kan steeds CM pasiënte versorg. Die beskikbaarheid van spinale manometers en deeglike nierfunksie monitering sal die behaling van teiken standaarde vergemaklik. Formele terugvoer aan die oudit span en kliniese span word beoog. ‘n Multimodale interdissiplinêre Kwaliteitsverbeterings benadering (soos ‘n geïntegreerde sorgplan) word aanbeveel en ‘n toekomstige oudit word aangemoedig om verbetering in toepassing van die CM riglyne te evalueer. Dit is belangrik om die sleutelspelers (bestuur, gesondheidswerkers en pasiënte) te betrek. Verder word voortgesette ondersteuning van die oudit span en ‘n toegewyde omgewing van kwaliteitsverbetering aanbeveel. Sodoende sal die oudit proses in Suid-Afrikaanse publieke sorg geintegreer word.

Submitted by Lee Catherine Booker (lee.catherine.booker@gmail.com) on 2013-12-27T13:41:24Z No. of bitstreams: 1 LCBooker_The Promised LAN_FGVEAESP MPGI thesis_final_with capa.pdf: 9371560 bytes, checksum: 913b62eb77164fb0e3a4bb7cfdfb71d2 (MD5) / Rejected by Vera Lúcia Mourão (vera.mourao@fgv.br), reason: Faltou a folha com a composição da banca, a Eliene responderá em inglês para você. abs. Vera on 2014-01-03T16:38:41Z (GMT) / Submitted by Lee Catherine Booker (lee.catherine.booker@gmail.com) on 2014-01-03T20:31:15Z No. of bitstreams: 1 LCBooker_The Promised LAN_FGVEAESP MPGI thesis_final_with capa.pdf: 9371698 bytes, checksum: 56c200a7da28636b08d9c4c394fceff7 (MD5) / Approved for entry into archive by Luana Rodrigues (luana.rodrigues@fgv.br) on 2014-01-06T14:19:34Z (GMT) No. of bitstreams: 1 LCBooker_The Promised LAN_FGVEAESP MPGI thesis_final_with capa.pdf: 9371698 bytes, checksum: 56c200a7da28636b08d9c4c394fceff7 (MD5) / Made available in DSpace on 2014-01-06T14:22:09Z (GMT). No. of bitstreams: 1 LCBooker_The Promised LAN_FGVEAESP MPGI thesis_final_with capa.pdf: 9371698 bytes, checksum: 56c200a7da28636b08d9c4c394fceff7 (MD5) Previous issue date: 2013-12-05 / This thesis analyzes the prospects and implications of investment in Information and Communications Technology (ICT) in developing countries, particularly in terms of education, to spur the implementation of a more modern infrastructure versus conversion of traditional methods. Given the rapid pace of interest and investments in ICT, current readiness models and capability measurements have become outdated, inaccurate, and inapplicable to developing cultures. Policymakers and financiers must be cognizant of these considerations when evaluating investments in or aid for future ICT initiatives around the world, and researchers and educators should understand the factors involved in development for both ICTs and education before beginning studies in poor areas. This paper concludes that investments in mobile and wireless technologies will allow organizations and governments to leapfrog traditional infrastructure, narrowing the digital divide and resulting in enhanced education, higher literacy rates, and sustainable solutions for development in impoverished communities in the developing world. / Este tese analise as implicações dos investimentos em tecnologia de informação e comunicação (ICT) em países ainda em desenvolvimento, especialmente em termos de educação, para estimular a implementação de uma infra-estrutura mais moderna em vez da continuação do uso de métodos tradicionais. Hoje, como o interesse e os investimentos em ICT estão crescendo rapidamente, os módulos e as idéias que existem para medir o estado de ICT são velhos e inexatos, e não podem ser aplicados às culturas de países em desenvolvimento. Políticos e investidores têm que considerar estes problemas quando estão pensando em investimentos ou socorros para programas em ICT no futuro, e investigadores e professores precisam entender os fatores importantes no desenvolvimento para os ICTs e a educação antes de começar estudos nestes países. Este tese concluí que investimentos em tecnologias móveis e sem fios ajudarem organizações e governos ultrapassar a infra-estrutura tradicional, estreitando a divisão digital e dando o resulto de educação melhor, alfabetização maior, e soluções sustentáveis pelo desenvolvimento nas comunidades pobres no mundo de países em desenvolvimento.

This report describes a thesis work carried out at ABB Robotics in Västerås. The objective of this thesis is to find technologies  and equipments  for wireless data transfer  suitable for the present and future needs of ABB Robotics Remote Service for large installations in industrial environments. ABB Robotics has a Remote Service solution to securely gather information from robots, manage alarms and potentially execute remote commands by ABB Robotics. This solution consists of an intelligent Service  Box plugged to the robot. This  Service Box is also connected through GPRS or directly through Internet to create a secure VPN connection to a central Remote Service  server. The Remote Service Box is well  suited  for small customers with  1-10 robots with plug  and play installation, but show limitations at a larger scale of deployment  due to equipment costs,  network and installation complexity. A new Service Box is planned that will accommodate future added functionality to Remote Service. This Service Box will require new network solutions as the added functionality  is depending on a higher bandwidth than the GPRS networks can deliver. I have surveyed most existing  wireless  networking technologies  and  analyzed  them  withrespect  to function, cost and availability which provide a knowledge base that makes it possible to find  suitable  solutions. When the most suitable technologies are identified a survey was performed to find equipments that meet the requirements at the lowest cost. A new hierarchical network topology is proposed  that will lead to cost savings by replacing multiple WAN connections in the present solution with  a network switch and  single WAN connection to Internet. As manufacturers of network equipments for industrial environments are relatively few, alternative solutions were also investigated in order to find the most cost effective solutions. The  proposed  network topology together with the data from the surveys lead to recommendations on using Wi-Fi  in the wireless LAN and  a  3G mobile  network for the WAN connection to Internet, as well as recommendations on alternative network equipments that  potentially  can  lead to substantial savings when the new network solutions are implemented.

La clairance des cellules apoptotiques par les macrophages est à l’origine d’un microenvironnement pro-résolutif composé de différents facteurs solubles, permettant de stopper la réaction inflammatoire et d’engager la réparation tissulaire. La résolution de l’inflammation est parfois défaillante et concourt au développement de pathologies inflammatoires chroniques, comme les maladies inflammatoires chroniques de l’intestin (MICI), qui regroupent la maladie de Crohn (MC) et la rectocolite hémorragique (RCH). Dans ce contexte, nous proposons d’évaluer l’efficacité thérapeutique de l’injection de ces facteurs pro-résolutifs dans le traitement des MICI. Ce produit issu de la culture de macrophages avec des cellules apoptotiques, appelé SuperMApo (Supernatant issued from Macrophage Apoptotic cell culture) (Brevet # WO2014106666-A1, 2013) contient des facteurs pro-résolutifs semblables à ce qu’on retrouve dans le processus physiologique de résolution de l’inflammation, et qui peuvent être absents ou inefficaces chez ces patients.Lors de ce travail, nous avons mise en évidence une efficacité thérapeutique de SuperMApo à l’aide de deux modèles expérimentaux de colite. Pour évaluer la pertinence de ces modèles par rapport à la pratique clinique, nous avons mise en place la vidéo-endoscopie souple. On a montré que l’efficacité de SuperMApo se traduit par diminution du score clinique, endoscopique et histologique des souris colitiques, accompagnée d’une amélioration de la perméabilité intestinale, et de la cicatrisation muqueuse. Cette efficacité thérapeutique est liée en partie à une reprogrammation des cellules présentatrices d’antigènes (APC) notamment de cDC et de macrophages qui présentent moins de réponse aux ligands de TLR, favorisent l’induction de Treg et inhibent la production de Th1. Par ailleurs, SuperMApo induit une cicatrisation nette de la muqueuse intestinale associée à la fois à une activation des myofibroblastes (la forme active des fibroblastes) et des cellules intestinales épithéliales (IEC). Concrètement, SuperMApo augmente les propriétés de migration, de prolifération et de cicatrisation de ces deux types cellulaire. Cet effet dépend en partie des facteurs de croissance au sein de SuperMApo comme le TGF-β, l’IGF-I et le VEGF. Finalement des résultats préliminaires montrent que SuperMApo induit un profil réparateur sur des fibroblastes issus de patients atteints de MICI. L’ensemble de ces résultats montrent, que l’injection de ces facteurs pro-résolutifs permet de mettre en œuvre des mécanismes capables de mettre en place un processus de résolution de l’inflammation et ouvre vers une utilisation clinique de cette approche dans le traitement de MICI. / Inflammation is a natural body defence reaction in response to injuries. The clearance of apoptotic cells by macrophages is at the origin of a pro-resolving microenvironment composed of various soluble factors, allow the arrest of the inflammatory response and to initiate tissue repair. The resolution of inflammation is sometimes defective and contributes to the development of chronic inflammatory diseases, such as chronic inflammatory bowel disease (IBD), which include Crohn's disease (CD) and ulcerative colitis (UC). In this context, we propose to evaluate the therapeutic effect of these pro-resolving factors in the treatment of IBD. This factors derived from the culture of macrophages with apoptotic cells, and called SuperMApo (Supernatant issued from Macrophage Apoptotic cell culture) (Patent # WO2014106666-A1, 2013) contains pro-resolving factors similar to those found in the physiological process of inflammatory resolution, and which may be absent or ineffective in these patients.In this work, we have demonstrated the therapeutic effect of SuperMApo using two experimental models of colitis. To assess the relevance of these models to clinical practice, we have implemented flexible video endoscopy. The therapeutic effect of SuperMApo has been shown to decrease the clinical, endoscopic and histological score of colitis mice, accompanied by improved intestinal permeability and mucosal healing in vivo. This therapeutic effect is related in part to reprogramming of antigen presenting cells (APC), in particular cDC and macrophages, which exhibit less response to TLR ligands, promote induction of Treg and inhibit Th1 production. In addition, SuperMApo induces a marked tissue repair of the intestinal mucosa associated with activation of myofibroblasts, the active form of fibroblasts, and the epithelial intestinal cells (IEC). In particular, SuperMApo increases the migration, proliferation and wound healing properties of these two cell types. This effect depends in part on the growth factors contained in SuperMApo such as TGF-β, IGF-I and VEGF. Finally, preliminary results show that SuperMApo induces a repairing state on fibroblasts from patients with IBD. This opens widely the use of SuperMApo as a clinically approach to propose this new therapeutic option to refractory patients suffering from IBD

En los últimos años, el consumo de servicios multimedia ha aumentado y se prevé que esta tendencia continúe en un futuro próximo, convirtiendo el tema de la evaluación de la Calidad de la Experiencia (QoE) en un tema muy importante para valorar el servicio de los proveedores. En este sentido, la optimización de la QoE recibe cada vez más atención ya que las soluciones actuales no han tenido en cuenta, la adaptación, la viabilidad, la rentabi-lidad y la fiabilidad. La presente memoria se centra en la caracterización, diseño, desarrollo y evaluación de diferentes aplicaciones multimedia, con el fin de optimizar la QoE. Por tanto, este trabajo investiga la influencia que la infraestructura de redes, las características de los videos y los terminales de los usuarios, presentan en la QoE de los servicios multimedia actuales en Internet. Esta tesis se basa en la investigación exhaustiva de la evaluación subjetiva y objetiva de QoE en redes heterogéneas. Los desafíos y cuestiones relacionados con el estado de la técnica y se discuten en esta disertación. En la primera fase, diseñamos una metodología de prueba para evaluar la QoE en la transmisión de video en directo y a través de plataformas de video bajo demanda en redes Wi-Fi y celulares. A partir de esta fase inicial, propondremos los problemas a investigar y las preguntas para resolver a lo largo de esta disertación. Nuestra metodología hace uso de métricas subjetivas y objetivas para evaluar la QoE percibida por los usuarios finales. Se realiza un conjunto de experimentos en laboratorio donde nuestra metodología de pruebas es aplicada. Los resultados obtenidos se recopilan y analizan para extraer las relaciones entre la Calidad de servicio (QoS) y QoE. A partir de estos resultados, se propone un mapeo de QoS-QoE que permite predecir la QoE. En la siguiente fase de la investigación, desarrollamos los algoritmos de optimización de QoE basados en la administración del sistema de red para redes Wi-Fi y celulares. Los algoritmos usan los parámetros clave que se tuvieron en cuenta para la evaluación de QoE. El objetivo de estos algorit-mos es proporcionar un sistema de gestión flexible para las redes con el ob-jetivo de lograr un equilibrio controlado entre la maximización de QoE y la eficiencia del uso de los recursos. Por último, se diseña el banco de pruebas del sistema para evaluar el rendimiento de las aplicaciones de servicios multimedia genéricos en los diferentes entornos de prueba. El banco de pruebas del sistema se basa en el enfoque de virtualización; usa los recursos compartidos de un hardware fí-sico para virtualizar todos los componentes. El banco de pruebas virtualiza-do proporciona funciones de red virtualizadas para diferentes escenarios, como Internet (las redes de distribución de contenido - CDNs) y redes inalámbricas. Por lo tanto, se adoptan protocolos livianos y mecanismos ágiles en el sistema, para proporcionar un mejor servicio a los usuarios fina-les. Los resultados de QoE son proporcionados a los proveedores de servi-cios de acuerdo con los parámetros que se definen en el proceso de la eva-luación. Como resultado hemos obtenido un sistema que presenta un servi-cio rentable como una forma factible para la evaluación de la prueba. / In recent years, multimedia services consumption has increased and it is expected that this trend will continue in the near future, becoming the evaluation of Quality of Experience (QoE) as a very important issue for assessing the quality of providers' services. In this sense, the optimization of the QoE is progressively receiving much attention considering that current solutions are not based on the adaptation, feasibility, cost-effectiveness, and reliability. The present dissertation is focused on the characterization, design, development and evaluation of different multimedia applications aimed to optimize the QoE. Therefore, this work investigates the influence that the networks infrastructure, the videos' characteristics and the users' terminals present on QoE of the current Internet multimedia services. The work is based on a comprehensive research of subjective and objective assessments in heterogeneous networks. Challenges and research questions related to the state of the art are discussed in this dissertation. In the first phase of this dissertation, we design a test methodology for assessing QoE of live video streaming and video on demand platforms to be transmitted over Wi-Fi and cellular networks. From this initial step, we will propound the related research issues and questions to solve this dissertation. Our methodology considers the use of subjective and objective metrics to evaluate the QoE perceived by end-users. A set of laboratory experiments is conducted where our proposed methodology is applied. The obtained results are gathered and analyzed to extract the relations between Quality of Service (QoS) and QoE. From the results, we propose a QoS-QoE mapping which allows predicting QoE. In the next phase of the research, we develop QoE-optimization algorithms based on network system management for Wi-Fi and cellular networks. The algorithms use the key parameters that were taken into account for QoE assessment. The goal of these algorithms is to provide a flexible management system for the networks in order to achieve the desirable trade-off between QoE maximization and resource usage efficiency. Lastly, the system testbed is designed in order to evaluate the performance of generic multimedia services applications for the different environments under test. The system testbed is based on virtualization approach; it uses the shared resources of a physical hardware to virtualize all components. The virtualized testbed provides virtualized network functions for the different scenarios such as the Internet (Content Delivery Networks - CDNs) and wireless networks. Therefore, lightweight protocols and agile mechanisms are adopted in the system to provide enhanced service to end-users. The QoE results are reported to the service providers according to the parameters defined in the evaluation process. As a result, we have obtained a cost-effective system, which is considered as a feasible way for test evaluation. / En els últims anys, el consum de serveis multimèdia ha augmentat i es preveu que aquesta tendència continue en un futur pròxim, convertitnt el tema de l'avaluació de la Qualitat d'Experiència (QoE) una tasca molt im-portant per a valorar el servei dels proveïdors. En aquest sentit, l'optimització de la QoE rep cada vegada més atenció degut a que les solucions actuals no tenen en compte, l'adaptació, la viabilitat, el rendiment i la fiabilitat. La present memòria se centra en la caracterització, disseny, desenvolupament i avaluació de diferents aplicacions multimèdia, amb la finalitat d'optimitzar la QoE. Per tant, aquest treball investiga la influència que la infraestructura de les xarxes, les característiques dels videos i els terminals dels usuaris tenen sobre la QoE dels serveis multimèdia actuals d'Iinternet. Aquesta tesi es basa en una recerca exhaustiva de l'avaluació subjectiva i objectiva de QoE en xarxes heterogènies. Els desafiaments i preguntes relacionats amb l'estat de la tècnica es discuteixen en aquesta dissertació. En la primera fase, dissenyem la metodologia de prova per a avaluar la QoE de transmissió de video en directe i de plataformes de video baix demanda en xarxes Wi-Fi i cel·lulars. A partir d'aquest primer pas, proposem els problemes de recerca relacionats i les preguntes a resoldre a través d'a-questa tesi. La nostra metodologia fa ús de mètriques subjectives i objecti-ves per a avaluar la QoE dels usuaris finals. Es realitzen un conjunt d'expe-riments en laboratori on s'aplica la nostra metodología. Els resultats obtin-guts es recopilen i analitzen per a extraure les relacions entre la QoS i la QoE. A partir d'aquests resultats, esproposa un mapatge de QoS-QoE que ens permetrà predir la QoE. En la següent fase de la recerca, desenvolupem els algoritmes d'optimi-tzació de la QoE per a l'administració de xarxes Wi-Fi i cel·lulars. Els algo-ritmes utilitzen els paràmetres clau que es van tenir en compte per a l'ava-luació de QoE. L'objectiu d'aquests algoritmes és proporcionar un sistema de gestió flexible per ales xarxes que permetrá aconseguir un equilibri con-trolat entre la maximització de la QoE i l'us eficient dels recursos. Finalment, el banc de proves del sistema està dissenyat per a avaluar el rendiment de les aplicacions de serveis multimèdia genèrics en els diferents entorns de prova. El banc de proves del sistema es basa en l'enfocament de virtualització; usa els recursos compartits d'un equip físic que virtualitza tots els components. El banc de proves virtualitzat proporciona les funcions de xarxa virtualitzades per a diferents escenaris, com Internet (les xarxes de distribució de continguts - CDNs) i xarxes sense fils. Per tant, s'adopten protocols lleugers i mecanismes àgils en el sistema per a proporcionar un millor servei als usuaris finals. Els resultats de QoE son proporcionats als proveïdors de serveis d'acord amb els paràmetres que es defineixen en el procés de l'avaluació. Com a resultat, hem obtés un sistema que presenta un servei rendible i com a viable per a l'avaluació de la prova. / Abdullah, MT. (2018). Smart Client-Server Protocol and Architecture for Adaptive Multimedia Streaming [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/103324 / TESIS

This thesis combines two current trends - the Internet of Things and Urban Agriculture. It describes technologies for wireless sensors communication in smart homes and hardware for their implementation. Based on these technologies smart hardware for automatic plants growing is implemented and connected to cloud with remote access via iOS mobile application.

This thesis is concerned the technology with technologies of transfer through wireless devices. It is about possibilities of optimization of transfer in wireless net, especially of the reduction of interference influence. The first part is about theory and the standards development of wireless technology. There are methods and principles used in wireless technologies. The second part is a practical measuring and testing of an internal wireless net, with the emphasis being on the source of interference influence. Measuring was focused on interference between access points and was not about meteorological influence. It continues with theory and testing of interference of the microwave oven in our wireless net. Then, it is a practical demonstration of interference in an external environment. There are practical examples of interference between different providers’ nets on the same area and solutions to prevent or to cancel this interference. In next part of work the wireless net is parsed and described in a given territory. Here is described the way how to precede the reciprocal interference and eventually how this mutual disturbance suppress. Consequently, our net is optimized for customer growth and for today’s options of newer and more powerful components for wireless transfer. Finally there are two laboratory tasks. The first one is about practical measuring and testing of wireless net’s parameters and the second one is about simulation of wireless networks in the Opnet program.

This thesis describes development of control algorithm for a wheelchair. Wheelchair should be capable of tracking and following a wall or a similar flat surface. Thesis is supposed to be an extension of the previous concept, whose purpose was to allow remote telepresence control of this wheelchair. SRF08 ultrasonic range finders are used to measure distance from the wall. Furthermore, image processing for mark detection is discussed. Purpose of these marks is to increase precision during final phase of the parking.

The aim of this master's thesis was to design and construct complete telemetry system for the student formula Dragon IV constructed for international Formula Student competition. At first, the work deals with the measurement of the physical quantities, telemetry system and automotive sensors of the formula, their mutual communication and communication with the CAN bus. It also describes the procedure of hardware design including choosing right inertial sensors and a GPS module and their using in telemetry system. The work contains materials for production of two-layer printed circuit board extending the microcomputer BeagleBone Black on the inertial sensors and the GPS module. The bigger part of the telemetry system is the firmware for hardware and software for the computer user. Both written in programming language C++ and C# are included in this work as well. This user application serves for wireless receiving data from the hardware and their showing and logging. In addition this user application can be used for wireless hardware configuration. The final product is the complete telemetry system and it is suitable for selling to end customer.