The graduation thesis "Trends in mobile phones development" is focusing principally on detailed analysis of mobile phone market on a global scale. The aim of this thesis is to elaborate comprehensive analysis of mobile phone market oriented on phones with operating systems (smartphones). The analysis is drawn primarily from the perspective of the key players in the market and comparison of these manufactures. After the descriptive part, where is introduced market as a whole, market segmentation by volume and value, this section focuses on segmentation of the global market by key players. This descriptive part is completed by market segmentation according to the amount of mobile phones sold by key players. Second analysis is segmented by operating system. Following parts of the thesis is more practical. This part of the thesis is analyzing the companies, which are selling smartphones. In this part I started by describing a brief overview about what the market is, what is focusing on and what their advantages and pitfalls are. My focus is analyzing the market via Porter's analysis and SWOT analysis of individual manufactures. Finally, I analyze the financial indicators from year 2007 to present. In conclusion I come to recommendations what manufactures should and should not to do. Chapter with warnings is described by the products on the market, which failed in recent years. At very end I come to the evaluation and recommendations, which theoretically should bring some positive progress to companies. The main contribution of this thesis is to provide comprehensive, detailed analysis of the market of mobile phones and smartphones manufactures on a global scale. One of the benefits is the collection of information, data and analysis describing the current state of the market, but also recommendations practices, to which I reached via progression of the this work. Thanks to unique appreciation of the global mobile phone market, their indicators and strategic information, it is necessary to say that this thesis can be very valuable material for some readers, who want to get overview, or seek accurate information about certain manufacture.

O presente trabalho se debruça sobre os elementos da cultura digital de nossos dias, que têm se tornado objetos presentes em toda a vida social, em suas mais diferentes esferas os telefones celulares. O intuito é descrever e analisar alguns dos fenômenos imbricados na construção desta cadeia de conectividade da qual celulares e todos nós, enquanto usuários, fazemos parte. Para tanto, o esforço empreendido foi o de compreender como estes objetos se inserem e compõem um amplo arranjo sociotécnico no qual circulam discursos, saberes, práticas, relações, circustâncias e eventos, envolvendo o mercado, os produtores, as inovações tencológicas de um lado e, consumidores e suas diversas práticas de uso e formas de vida, de outro. Demonstra-se como que toda esta rede não escapa aos eixos do mercado, pelo contrário, engloba-os e os faz crescer e os celulares constituem elementos agenciadores deste processo à medida em que fazem as próprias vidas de seus usuários circular pelas infovias, alterando os regimes de relações que envolvem o contato com o outros, as formas de ser estar no mundo, as formas de controle e os regimes de subjetivação. A principal contribuição deste estudo é, assim, mostrar que se está diante de novos vetores de poder que incidem diretamente sobre a gestão das vidas de cada um, às formas de uso do tempo, constituição de afetos, contribuindo, igualmente para dar novos contornos aos processos de geração de valor, cada vez mais atrelados aos momentos de consumo. Em suma, entender quais novas roupagens de questões, caras à teoria social, tais como governamentalidade e sociedade do controle entram em jogo, a partir do momento em que este objeto torna-se onipresente nas práticas sociais e de que forma estas questões se atualizam, é o que consistiu na tarefa primordial deste trabalho / This thesis focuses on one representative element of the current digital culture, which has become present in all social life in its different spheres the mobile phone. Our aim is to describe and analyze some of the overlapping phenomena in the construction of this connectivity chain to which mobile phones and we, as users, belong. To this end, the effort undertaken was to understand how these artifacts are inserted and comprise a broad socio-technical arrangement in which discourses, knowledge, practices, relationships, circumstances and events flow, involving the market, the producers, the technological innovations on one side and the consumers, and their various daily use practices and life habits on the other. We try to show how this whole network does not escape to the axes of the market, by contrast, it embraces and makes them grow and how the mobile phones are important elements of this process because they made the lives of its users move through the networks flows, changing, by this way, the relationships that involve the contact with the other, the ways of being in the world, the control practices and the regimes of subjectivity. The main contribution of this study is thus to show that one is facing new vectors of power that directly affect the management of each other\'s lives, the time use forms, the constitution of affects, contributing also to give new dimensions to processes of value creation, which are increasingly tied to consumption occasions. In short, to understand how new social issues, come into play, from the time that this artifacts become ubiquitous in social practices and how these are updated in terms of governmentality and social control is the primary task of this work

<p>This graduation paper treats e-mobbing via the different communication medias of the mobile phone. The purpose of the research has been to describe student’s experience of e-mobbing via the mobile phone’s different integrated functions as phone calls, sms, mms and e-mail.</p><p>In this poll investigation asked 100 students of 15-20 years of age.</p><p>The interviews made have shown that girls are more exposed to e-mobbing, e.g. indirect mobbing. In my research it is possible to see that girls are more exposed than boys to threats of violence via sms, the spreading of rumours and the danger of being called different things.</p><p>It is also possible to see in the result of the interviews that the mobber wants to experience power, something which is not unusual in all types of mobbing. The mobber feels safe and unreachable, while he or she can reach the victim at any time possible. This is something which is mentioned in the interviews by the young themselves. It is possible to see clearly that an indication of power and control is an important part in this type of mobbing.</p> / <p>Mitt examensarbete handlar om e-mobbning via mobiltelefonens olika kommunikationsmedium. Syftet med min undersökning är att beskriva skolungdomars erfarenheter av e-mobbning via mobiltelefonens olika integrerade funktioner såsom telefonsamtal, sms, mms och email.</p><p>I min enkätundersökning tillfrågades totalt 100 ungdomar i åldern 15-20 år.</p><p>Enkätintervjun har visat att flickorna är mer utsatta för e-mobbning d.v.s. indirekt mobbning.</p><p>I min undersökning kan man se att flickorna utsätts för sms mobbning i form av hot om våld, ryktesspridning och att de blir kallad för olika saker betydlig oftare än pojkarna.</p><p>Något som man även kan utläsa av enkätresultatet är att mobbaren vill känna makt vilket inte i sig något ovanligt beteende vid all typ av mobbning. I mobbning via mobiltelefon känner sig mobbaren säker och inte nåbar men han eller hon kan nå den mobbade när som helst.</p><p>Man kan se ett tydligt tecken på att maktstyrning och kontroll är en viktig ingrediens i denna typ av mobbning.</p>

This graduation paper treats e-mobbing via the different communication medias of the mobile phone. The purpose of the research has been to describe student’s experience of e-mobbing via the mobile phone’s different integrated functions as phone calls, sms, mms and e-mail. In this poll investigation asked 100 students of 15-20 years of age. The interviews made have shown that girls are more exposed to e-mobbing, e.g. indirect mobbing. In my research it is possible to see that girls are more exposed than boys to threats of violence via sms, the spreading of rumours and the danger of being called different things. It is also possible to see in the result of the interviews that the mobber wants to experience power, something which is not unusual in all types of mobbing. The mobber feels safe and unreachable, while he or she can reach the victim at any time possible. This is something which is mentioned in the interviews by the young themselves. It is possible to see clearly that an indication of power and control is an important part in this type of mobbing. / Mitt examensarbete handlar om e-mobbning via mobiltelefonens olika kommunikationsmedium. Syftet med min undersökning är att beskriva skolungdomars erfarenheter av e-mobbning via mobiltelefonens olika integrerade funktioner såsom telefonsamtal, sms, mms och email. I min enkätundersökning tillfrågades totalt 100 ungdomar i åldern 15-20 år. Enkätintervjun har visat att flickorna är mer utsatta för e-mobbning d.v.s. indirekt mobbning. I min undersökning kan man se att flickorna utsätts för sms mobbning i form av hot om våld, ryktesspridning och att de blir kallad för olika saker betydlig oftare än pojkarna. Något som man även kan utläsa av enkätresultatet är att mobbaren vill känna makt vilket inte i sig något ovanligt beteende vid all typ av mobbning. I mobbning via mobiltelefon känner sig mobbaren säker och inte nåbar men han eller hon kan nå den mobbade när som helst. Man kan se ett tydligt tecken på att maktstyrning och kontroll är en viktig ingrediens i denna typ av mobbning.

CyborGlogs are lifelong log files of personal experiences that are captured without conscious thought or effort. By creating cyborglogs on a continuous basis, we can enable various novel applications where the lifelong records are used as memory aids or for personal safety. This thesis presents the development of a mobile application that provides the tools to instantly capture, archive, recall, and share our personal experiences on widely available cameraphones. To achieve this goal, a client-server computational framework is designed and implemented to support real-time interaction among the users. Three fully functional prototypes supporting three major mobile platforms (J2ME, Symbian, and iPhone) are presented to show the feasibility and flexibility of this framework. Finally, this thesis shows an early prototype which demonstrates the idea of mediated reality on cameraphones using various integrated sensors. This prototype explores the possibilities of developing truly intelligent wearable applications on mobile devices in the future.

CyborGlogs are lifelong log files of personal experiences that are captured without conscious thought or effort. By creating cyborglogs on a continuous basis, we can enable various novel applications where the lifelong records are used as memory aids or for personal safety. This thesis presents the development of a mobile application that provides the tools to instantly capture, archive, recall, and share our personal experiences on widely available cameraphones. To achieve this goal, a client-server computational framework is designed and implemented to support real-time interaction among the users. Three fully functional prototypes supporting three major mobile platforms (J2ME, Symbian, and iPhone) are presented to show the feasibility and flexibility of this framework. Finally, this thesis shows an early prototype which demonstrates the idea of mediated reality on cameraphones using various integrated sensors. This prototype explores the possibilities of developing truly intelligent wearable applications on mobile devices in the future.

This thesis focuses on mobile phones antenna design with brief description about the historical development, basic parameters and the types of antennas which are used in mobile phones. Mobile phones antenna design section consists of two proposed PIFA antennas. The first design concerns a single band antenna with resonant frequency at GPS frequency (1.575GHz). The first model is designed with main consideration that is to have the lower possible PIFA single band dimensions with reasonable return loss (S11) and the efficiencies. Second design concerns in a wideband PIFA antenna which cover the range from 1800MHz to 2600MHz. This range covers certain important bands: GSM (1800MHz &amp; 1900MHz), UMTS (2100MHz), Bluetooth &amp; Wi-Fi (2.4GHz) and LTE system (2.3GHz, 2.5GHz, and 2.6GHz). The wideband PIFA design is achieved by using slotted ground plane technique. The simulations for both models are performed in COMSOL Multiphysics.  The last two parts of the thesis present the problems of mobile phones antenna. Starting with Specific absorption rate (SAR) problem, efficiency of Mobile phones antenna, and hand-held environment.

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. / -

O uso dos dados de posicionamento a partir do telefone celular tem impactado de maneira positiva os estudos sobre os deslocamentos humanos. O grande volume e a regularidade na obtenção dos dados são facilitadores das análises de posicionamento em múltiplos dias. Utilizando-os como fonte dos dados, o presente estudo focou em realizar uma análise dos deslocamentos cotidianos de moradores de assentamentos precários pela cidade de São Paulo em diferentes períodos do dia para definir origens e destinos com a finalidade de analisar as distâncias, os deslocamentos por transporte público e inferir um perfil de uso do solo nos locais de estadia frequente usando métodos utilizados em estudos internacionais de análise dos dados de telefonia móvel, combinados com métodos de análise espacial e geoprocessamento. Os resultados mostraram dados importantes para entender a mobilidade dos moradores de favela dentro da cidade de São Paulo, os quais, em média, estão mais distantes de casa no horário comercial dos dias úteis quando comparados com outros moradores da cidade. Foi possível observar mudanças nos perfis de uso do solo dos locais de estadia frequente que podem ser utilizados como indicadores na análise das atividades e também se inferiu possíveis trajetórias por transporte público entre as origens e destinos frequentes. Os métodos de análise de deslocamento humano a partir dos CDRs usados internacionalmente se mostraram totalmente adaptáveis para realidade brasileira e a utilização para análise de deslocamentos dos moradores de assentamentos precários mostrou-se útil para auxiliar nos estudos de mobilidade dessa população carente. / The use of position data from mobile phones have impacted in a positive way the researches about human mobility. The very large quantity and regularity on the way how this database is collected improve the capacity of a multi-day\'s positioning analyse. Using this data source, the present study was focus in analyse the commute of residents in poor settlements (like slums) inside the city of São Paulo- Brazil, in different time periods for define origins and destinations to analyse the distance using public transport and land use in frequents stay points using methods used in international studies of mobile data analysis, combined with spatial analysis methods. The results showed important data to understand the mobility of favela residents within the city of São Paulo, who, on average, are more distant from home during working day business hours when compared to other residents of the city. It was possible to observe changes in the land use profiles of the frequent places of stay that can be used as indicators in the analysis of activities and inferred possible trajectories by public transport between the frequent origins and destinations. The methods of analysis of human commute using CDR data were fully adaptable for Brazilian reality and the use for analysis of commute from residents of precarious settlements proved useful to assist in the mobility studies of this poor population.

Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-03-10T11:22:40Z No. of bitstreams: 1 cintiadeoliveirarezende.pdf: 819221 bytes, checksum: 339dce17ba20eb705cadcbe3177dd19d (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-03-10T14:33:29Z (GMT) No. of bitstreams: 1 cintiadeoliveirarezende.pdf: 819221 bytes, checksum: 339dce17ba20eb705cadcbe3177dd19d (MD5) / Made available in DSpace on 2017-03-10T14:33:29Z (GMT). No. of bitstreams: 1 cintiadeoliveirarezende.pdf: 819221 bytes, checksum: 339dce17ba20eb705cadcbe3177dd19d (MD5) Previous issue date: 2016-12-19 / O uso de telefones móveis tem aumentado e junto a isso a preocupação dos seus possíveis efeitos à saúde tem aumentado também. Nosso laboratório tem desenvolvido estudos mostrando que a radiação emitida por aparelhos celulares pode afetar parâmetros reprodutivos e apresenta efeito programador na prole alterando o conteúdo de catecolaminas adrenal e glicose sérica, o que poderia influenciar no metabolismo energético desses animais. Pouco se sabe ainda sobre o efeito programador desse tipo de radiação no metabolismo energético. Mas tem sido mostrado que a radiação é capaz de afetar as células da tireoide aumentado a apoptose e levando ao hipotiroidismo, o que de certa forma também poderia influenciar no metabolismo. Sendo assim, este estudo teve como objetivo avaliar o efeito de ondas eletromagnéticas irradiadas por aparelhos celulares sobre o metabolismo da prole adulta submetida durante o período intra-uterino. Para isso ratas prenhes foram expostas à radiofrequência emitida por telefones celulares (1,8 GHz) durante o período gestacional. Ao atingir a idade adulta a prole foi analisada para os possíveis efeitos programadores no metabolismo energético desses animais através da dosagem de hormônios tireoidianos: Hormônio Estimulante da Tireóide (TSH), Triiodotironina (T3) e Tetraiodotironina (T4) e hormônios relacionados ao metabolismo como: insulina, adiponectina e leptina. Não foram encontradas diferenças significativas nos hormônios analisados nem na prole adulta de fêmeas e nem de machos. Sugerindo assim que no modelo estudado a radiação não altera os hormônios analisados relacionados ao metabolismo energético. / The use of mobile phones has increased and along with it the concern of the possible health effects has increased as well. Our laboratory has developed studies showing that radiation from mobile phones can affect reproductive parameters and features programmer effect on offspring by changing the adrenal catecholamine content and serum glucose, which could influence the energy metabolism of these animals. Little is yet known about the programmer effect of this radiation in energy metabolism. But it has been shown that radiation can affect the thyroid cells increased apoptosis and leading to hypothyroidism, which in a way could also influence the metabolism. Thus, this study aimed to evaluate the effect of electromagnetic waves radiated by cell phones on the metabolism of the adult offspring submitted during the intrauterine period. For that pregnant rats were exposed to radio frequency emitted by mobile phones (1.8 GHz) during pregnancy. Upon reaching adulthood offspring was analyzed for potential programmers effects on energy metabolism of these animals by the dosage of thyroid hormones: Hormone Stimulant Thyroid (TSH), triiodothyronine (T3) and Tetraiodothyronine (T4) and hormones related to metabolism as: insulin, adiponectin and leptin. No significatives differences were observed on hormones evaluated either on male and female offspring. Suggesting that the model studied the radiation does not alter the hormones analyzed related to energy metabolism.