The goal for the next generation of mobile communications system is to seamlessly integrate a wide variety of communication services such as high speed data, video and multimedia traffic as well as voice signals. The technology needed to tackle the challenges to make these services available is popularly known as the Third Generation (3G) Cellular Systems. One of the most promising approaches to 3G is to combine a Wideband Code Division Multiple Access (WCDMA) air interface with the fixed network of Global System for Mobile communications (GSM). In this thesis a signal simulator was implemented according to the physical layer specification of the IMT-2000 WCDMA system. The data is transmitted in a frame by frame basis through a time varying channel. The transmitted signal is corrupted by multiple access interference which is generated in a structured way rather than treating it as Additive White Gaussian Noise (AWGN). The signal is further corrupted by AWGN at the front end of the receiver. Simple rake diversity combining is employed at the receiver. We investigate the bit error rate at both uplink and downlink for different channel conditions. Performance improvement due to error correction coding scheme is shown. The simulator developed can be an invaluable tool for investigating the design and implementation of WCDMA systems. / Master of Science

A indústria naval é uma das mais importantes para economia e desenvolvimento de um país, no entanto, as diversas atividades desenvolvidas em zonas portuárias contribuem para o impacto ambiental a ambientes costeiros, dentre os vários grupos de micropoluentes orgânicos potencialmente danosos a esses ecossistemas, emergiram nos últimos anos os biocidas anti-incrustantes. Pinturas anti-incrustantes são tratamentos utilizados para minimizar processos corrosivos, diminuindo custos com manutenção, economizando combustíveis e reduzindo a veiculação de espécies não nativas entre ecossistemas costeiros. Neste estudo foi desenvolvido, validado e aplicado um método analítico para determinação dos biocidas anti-incrustantes, clorotalonil, diuron, irgarol e tiram em amostras de água, e tecido biológico em diferentes regiões portuárias da costa brasileira e da Ilha de Gran Canaria -Espanha. / The maritime industry is an important aspect of a countries economy, however, the cumulative activities of port areas has an impact on coastal environments, this can include the addition of harmful micro-organic material. Among the potentially harmful micro-organic material being added to ecosystems, are recently emerged anti-fouling biocidal paints. Anti-fouling paints are used as a treatment to minimize corrosive processes, reduce maintenance costs, save fuel and reduce the transmission of non-native species to coastal ecosystems. This study developed, validated and applied an analytical method for the determination of the anti-fouling biocidal paints, chlorothalonil, diuron, irgarol and tiram in water samples and biological tissue in different port areas of the Brazilian coast and the Gran Canaria Island in Spain.

A indústria naval é uma das mais importantes para economia e desenvolvimento de um país, no entanto, as diversas atividades desenvolvidas em zonas portuárias contribuem para o impacto ambiental a ambientes costeiros, dentre os vários grupos de micropoluentes orgânicos potencialmente danosos a esses ecossistemas, emergiram nos últimos anos os biocidas anti-incrustantes. Pinturas anti-incrustantes são tratamentos utilizados para minimizar processos corrosivos, diminuindo custos com manutenção, economizando combustíveis e reduzindo a veiculação de espécies não nativas entre ecossistemas costeiros. Neste estudo foi desenvolvido, validado e aplicado um método analítico para determinação dos biocidas anti-incrustantes, clorotalonil, diuron, irgarol e tiram em amostras de água, e tecido biológico em diferentes regiões portuárias da costa brasileira e da Ilha de Gran Canaria -Espanha. / The maritime industry is an important aspect of a countries economy, however, the cumulative activities of port areas has an impact on coastal environments, this can include the addition of harmful micro-organic material. Among the potentially harmful micro-organic material being added to ecosystems, are recently emerged anti-fouling biocidal paints. Anti-fouling paints are used as a treatment to minimize corrosive processes, reduce maintenance costs, save fuel and reduce the transmission of non-native species to coastal ecosystems. This study developed, validated and applied an analytical method for the determination of the anti-fouling biocidal paints, chlorothalonil, diuron, irgarol and tiram in water samples and biological tissue in different port areas of the Brazilian coast and the Gran Canaria Island in Spain.

Recent rapid advancements in mobile communication and emerging demands for complicated multimedia content and services over mobile systems have caused a dramatic increase in research interest in this area. Among the topics covering multimedia service performance over the wireless interface, the quality of received multimedia content is an important issue. With the increase of visual media in mobile services, user opinion acquired through perception of received image quality will play an increasingly important role in determining the effectiveness of such services. The work documented in this thesis is motivated by the general lack of published work on software test beds for Third Generation Mobile Network (3G) and in particular for investigating mobile environment multimedia quality degradation. A 3G multimedia quality analysis system is presented, subjecting the input multimedia stream to the simulated 3G radio activities and measuring its degradation in terms of human perception. This approach takes a new and different model of multimedia quality measurement in a wireless communication domain, showing the possibility of a more effective approach that can be applied in many cases for assisting service quality assurance research across this area. The development of this software system is covered in detail together with in-depth analysis of multimedia image quality over a simulated 3G radio interface. Universal Mobile Telecommunications System (UMTS) is the 3G standard chosen for study in this work. The suggested test bed simulates a single Frequency Division Duplex (FDD) downlink UMTS Territorial Radio Access (UTRA) channel, where the received media's image analysis is performed using a Human Vision System (HVS) based image quality metric. The system aims to provide a multipurpose and versatile multimedia 3G test bed for use in testing of various solutions for protecting multimedia data across a 3G radio interface. Furthermore, it produces effective human vision oriented feedback on visual media degradation, providing a new and efficient method to address effectiveness of solutions in multimedia delivery over a mobile environment. This thesis shows the ability of HVS-based image quality metric in analyzing degradation of visual media over a noisy mobile environment. This presents a novel direction in the area of telecommunication service multimedia quality analysis, with potential user quality perception being considered on top of data or signal-based error measurements. With such a new approach, development of multimedia protection solutions can be made more effective. Effective feedback provided by considering quality measurement with strong correlation to human perception allows close analysis of user visual discrimination across an image. An example of the usefulness of this information is especially visible if considering development of a content-based multimedia data protective system that provides different levels of protection, depending on the importance of visual media. An apparent potential application of this thesis is in the testing of a multimedia/image protection protocol in a downlink channel. Future work might aim to extend the current system by adding network level traffic simulations and further addition of dynamic network control components, further considering network traffic conditions.

Η διπλωματική εργασία υλοποιεί και προσομοιώνει αλγόριθμο για τη βέλτιστη διαχείριση φορητών συσκευών σε ετερογενή ασύρματα δίκτυα. Στο πρώτο κεφάλαιο γίνεται μια εισαγωγή στις γενικές αρχές των Κυτταρικών Συστημάτων Κινητών Επικοινωνιών παρουσιάζοντας την βασική ιδέα των διαφόρων γενιών κινητών επικοινωνιών. Στο δεύτερο κεφάλαιο αναλύονται τα συστήματα τρίτης γενιάς – 3G. Στο τρίτο κεφάλαιο αναφέρονται τα τεχνικά χαρακτηριστικά, τα πλεονεκτήματα και οι σχέσεις της πλατφόρμας TETRA. Στο τέταρτο κεφάλαιο περιγράφεται το σύστημα και οι λειτουργίες του TETRAPOL καθώς και τα πλεονεκτήματα και οι υπηρεσίες που προσφέρει αυτό. Στο 5ο κεφάλαιο αναλύονται τα συστατικά οι υπηρεσίες και οι λειτουργίες του iDen. Στο κεφάλαιο 6 γίνεται μια αναφορά στο πρωτόκολλο WiMax. Στα κεφάλαια 7 & 8 παρουσιάζονται ο αλγόριθμος της διαχείρισης συσκευών και η εξομοίωσή του σε MATLAB. / -

abstract: Alternative energy technologies must become more cost effective to achieve grid parity with fossil fuels. Dye sensitized solar cells (DSSCs) are an innovative third generation photovoltaic technology, which is demonstrating tremendous potential to become a revolutionary technology due to recent breakthroughs in cost of fabrication. The study here focused on quality improvement measures undertaken to improve fabrication of DSSCs and enhance process efficiency and effectiveness. Several quality improvement methods were implemented to optimize the seven step individual DSSC fabrication processes. Lean Manufacturing's 5S method successfully increased efficiency in all of the processes. Six Sigma's DMAIC methodology was used to identify and eliminate each of the root causes of defects in the critical titanium dioxide deposition process. These optimizations resulted with the following significant improvements in the production process: 1. fabrication time of the DSSCs was reduced by 54 %; 2. fabrication procedures were improved to the extent that all critical defects in the process were eliminated; 3. the quantity of functioning DSSCs fabricated was increased from 17 % to 90 %. / Dissertation/Thesis / M.S.Tech Technology 2012

[pt] Os sistemas de comunicações móveis celulares de terceira geração trazem a promessa de oferta de serviços diversos e avançados de comunicação. Estes serviços implicam em requisitos heterogêneos de desempenho da comunicação, e na conseqüente influência de diferentes parcelas de carga sobre a infra-estrutura empregada. Este trabalho contempla a questão do planejamento, dado que pode haver cargas heterogêneas simultâneas, e avalia fatores relacionados à carga, propondo uma ferramenta para modelá-la estatisticamente, de forma que se possa escolher raios de célula apropriados como subsídio à atividade de planejamento. / [en] Third generation mobile communication systems bring the promise of several and advanced communication services, which implies in heterogeneous performance requirements and consequent influence of diferent weighted loads over the communication infra-structure aplyed. This work treats the planning issue, given that there can be heterogeneous simultaneous loads, evaluating factors relateds to this loads and proposing a tool for its tatistical modeling, which allows to choose apropriated cell rays in aid of planning procedures.

Magister Educationis - MEd / In this paper, I focus on the issue of student perceptions and experiences of a 3rd generation academic development programme in higher education. I set out to explore the issue from two perspectives: firstly from the perspective of the higher education institution’s approach to academic development, namely, a learning skills programme and a first year sociology course, and secondly from the perspective of students’ intentions, expectations and experiences of such a programme. The research questions focused on the learning priorities embedded in the curriculum of a learning skills programme at Monash University, South Africa and the learning experiences of students in this programme.The methodology used in this study includes a case study which focused on the responses of six participants from a number of African countries completing their BA degrees. Semistructured interviews held and the content analysis method was used to analyse the data. The study concludes: that the main priority of the learning skills programme is to prepare students for their university learning rather than to prepare students for the world of work i.e. it falls within Street’s (2004) academic socialization model and that the Learning Skills programme can be seen as an example of Boughey’s (2007) 3rd generation academic development programmes.The study also suggests that there is a need to explore Volbrecht’s (2003) argument on the limitations of discipline-based models of academic development, the need to examine how academic literacy is constructed and how identity and power relations intersect in this construction. It further highlights the importance of the idea of multi-literacies as put forward by Street (2004) and suggests that as practitioners we should include a consideration of these literacies in academic development programmes to improve the quality of students’ learning and meaning making.

京都大学 / 0048 / 新制・課程博士 / 博士(医学) / 甲第20989号 / 医博第4335号 / 新制||医||1027(附属図書館) / 京都大学大学院医学研究科医学専攻 / (主査)教授 朝長 啓造, 教授 松田 文彦, 教授 小柳 義夫 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM

Les trois premières années de fonctionnement de l'expérience ATLAS au LHC, aux résultats fructueux, ont ouvert l'accès à la physique à l'échelle du TeV. Les travaux effectués dans ce contexte ont porté à la fois sur des aspects de performance (reconstruction des électrons) et d'analyse (recherche de nouvelle physique). La première partie est consacrée aux mesures in-situ des efficacités de reconstruction et d'identification des électrons. La méthodologie employée pour réaliser ces mesures dans les données est présentée en détails ainsi que les méthodes développées pour l'estimation du bruit de fond résiduel. La deuxième partie traite de la recherche de Supersymétrie dans les événements avec deux leptons (électrons ou muons) de charges identiques, accompagnés de jets et éventuellement d'énergie transverse manquante, basée sur l'ensemble des données collectées par ATLAS en 2012 (soit 21 fb-1 à sqrt{s}= 8 TeV). Ces états finaux sont particulièrement appropriés à la recherche de gluinos ou de squarks de troisième génération. Les principaux aspects de l'analyse sont décrits, notamment les méthodes d'estimation des différents bruits de fond. L'absence d'excès dans les régions de signal par rapport aux prédictions du Modèle Standard est interprétée en termes de limites sur les masses des superpartenaires, dans le cadre de modèles aux spectres de masse simplifiés. Ainsi, dans les modes de désintégrations étudiés, l'existence de gluinos de masse inférieure à 1 TeV, ou de sbottoms de masse inférieure à 500 GeV, est exclue. / The first three years of operation of the ATLAS experiment at LHC, with fruitful results, have opened the way to physics at the TeV scale. The work realized in this context included some performance aspects (electron reconstruction) as well as analysis (search for new physics). The first part is devoted to in-situ measurements of electron reconstruction and identification efficiencies. The methodology employed to perform these measurements in data is presented in details, as well as the methods developped for estimating the residual background. The second part deals with a search for Supersymmetry in events with two leptons (electrons or muons) of identical charges, together with jets and in some cases missing transverse energy, based on the whole dataset colledcted by ATLAS in 2012 (namely 21 fb-1 at 8 TeV). These final states are particularly adapted to searches for gluinos or third generation squarks. The main aspects of the analysis are described, in particular the methods used to estimate the various backgrounds. The absence of excess in the signal regions with respect to the Standard Model predictions is interpreted in terms of limits on the masses of superpartners, in the frame of models with simplified mass spectra. Thus, in the studied decay modes, the existence of gluinos with masses below 1 TeV or sbottoms with masses below 500 GeV is excluded.