Dissertations / Theses: 'Mobile phones'

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Amundsen, Jon Anders. "Using the Geographical Location of Photos in Mobile Phones." Thesis, Norwegian University of Science and Technology, Department of Computer and Information Science, 2008. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9786.

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Digital cameras in mobile phones have become very popular in the recent years, and it is common to have large photo collections stored in the phone. Organizing these photos on the phone is still a big problem though. This study explores different ways of utilizing the location of where the photos were taken to make it easier to manage a large photo collection. Several different positioning technologies that can be used to obtain the location of where a photo was taken are presented. Three of the application suggestions for using location information of photos were implemented as prototypes on the Android platform. Android is a new platform for mobile phones developed by Google and the Open Handset Alliance, which has been made available as a preview release for developers. A part of this study was to investigate how suitable this platform is for developing location-based software. It was found that it is very suitable, although there still are some bugs and missing features that are expected to be fixed before the final release. The three application prototypes that were implemented were called “From Photo to Map”, “From Map to Photos” and “Who Lives Here?” The “From Photo to Map” application lets the user see a map where the location of a selected photo is visualized with a marker. The “From Map to Photos” application shows a map with markers at all of the locations where the user has taken photos. When one of the markers is selected, the photos taken at that location is shown. The “Who Lives Here?” application lets the user know which of the persons in his contact list that lives where the photo was taken. A small user survey showed that the participants thought all of the applications could be useful, but they were not so sure if they would use them themselves. The survey also showed that most of the users were able to find photos faster when using map-based browsing in the “From Map to Photos” application than when browsing through a photo collection linearly, but several concerns about the implementation details and the use of an emulator make the exact efficiency gain very uncertain.

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Soleymani, Bijan. "Social authentication for mobile phones." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:8881/R/?func=dbin-jump-full&object_id=92190.

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Cai, Guangning. "Cottage mobile phones in China." Thesis, Linnaeus University, Linnaeus School of Business and Economics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-6649.

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Khytrenko, O. O. "Mobile phones in our life." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/40485.

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Lee, Sang Won. "Audience participation using mobile phones as musical instruments." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44749.

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This research aims at a music piece for audience participation using mobile phones as musical instruments in a music concert setting. Inspired by the ubiquity of smart phones, I attempted to accomplish audience engagement in a music performance by crafting an accessible musical instrument with which audience can be a part of the performance. The research begins by reviewing the related works in two areas, mobile music and audience participation at music performances, builds a charted map of the areas and its intersection to seek an innovation, and defines requisites for a successful audience participation where audience can participate in music making as musicians with their mobile phones. To make accessible audience participation, the concept of a networked multi-user instrument is applied for the system. With the lessons learnt, I developed echobo, a mobile musical instrument application for iOS devices (iPhone, iPad and iPod Touch). With this system, audience can download the app at the concert, play the instrument instantly, interact with other audience members, and contribute to the music by sound generated from their mobile phones. A music piece for echobo and a clarinet was presented in a series of performances and the application was found to work reliably and accomplish audience engagement. The post-survey results indicate that the system was accessible, and helped the audience to connect to the music and other musicians.

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Ong, Siong Khai. "A high data capacity barcode for mobile phones." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2011. https://ro.ecu.edu.au/theses/408.

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This thesis describes the development and evaluation of a data storage colour 2D barcode known as the MMCC barcode. 1D barcodes are widely used to provide inexpensive and accurate data capture capability. However, due to their low data capacity, they can only function as indexes to back-end databases. The desire for higher data capacity has led to the development of colour 2D barcodes. The recent increasingly ubiquitous availability of camera phones has created a new platform to facilitate this data capture. However, it is challenging to decode colour barcodes as the colour values vary greatly under different lighting conditions. In addition, images captured by mobile phone cameras can be blurry, which can cause the cells to be read at the wrong location. As such, it is even harder to accurately decode these barcodes when a mobile phone is used as the capture device. Hence, in order to work with phone cameras, some recent colour barcodes such as ColorCode and Microsoft Tag use a limited number of colours and cells which trades off data capacity for robustness. This type of barcode can still only function as an index, such as a URL pointing to content on the Internet. Index barcodes do not work all the time as network connectivity is not always available. Hence, the MMCC barcode was developed. To the best of the author’s knowledge, this barcode has a data capacity higher than any of the existing barcodes that can reliably work with camera phones. A number of innovative features including random interleaving, reference colours, appropriate selection of the colours used, alignment cells, adaptive use of multiple colour spaces to classify the cells, and RS coding as the FEC are proposed in this research to improve the robustness of the MMCC barcode. Together with RS coding, random interleaving protects the code against clustered errors by distributing codewords randomly across the barcode. Since the communication channels affect the reference colours and the cells in a similar way, classification of the cells based on the reference colours is significantly more accurate than classification based on the original encoded colour values. It is also observed that the colour pairs of Red-Magenta and Blue-Cyan are close to each other during capturing. Hence, to avoid using the colour pairs at the same time, the MMCC barcode uses a selection of colours that are located on the plane of Red, Black, White, Cyan in the RGB colour space. Border and alignment cells can be used to improve the alignment of the barcode and this thesis investigates their effectiveness in improving the capacity and robustness of the colour 2D barcode. The borders tested were found to be ineffective in the context of high data density barcodes. In the MMCC barcode, alignment cells were shown to improve the decoding of the barcode as each cell is more likely to be read at the correct location. The effects of JPEG artifacts are overcome as the centre of each alignment cell is determined using the number of black pixels that are enclosed within a white border. With the same physical area and a similar level of error correction, the MMCC barcode has been shown to achieve twice the data capacity of the QR code, the most common existing 2D barcode. With this increase, more applications, such as the use of an MMCC barcode as a mobile electronic readable business card, can be developed. With suitable further development, it is thought that the MMCC barcode can enable a range of novel mobile data capture applications.

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Mekala, Saketha Ram. "MOBILE CREDIT USING GSM NETWORK : TOPUP FOR MOBILE PHONES." Thesis, Blekinge Tekniska Högskola, Institutionen för kommunikationssystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-10848.

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Aquino, Sergio. "Recycling precious metals from mobile phones." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/64230.

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The world population reached 7.5 billion inhabitants in April 2017. The number of mobile phones will reach 4.77 billion by the end of this year. Mobile phones are made of more than 50 elements. Discoveries of economically viable gold mines in the main producing countries have been slowing down significantly since the 1800s. The global surface temperature of the planet is warming at 0.17⁰C per decade relative to pre-industrial levels. The mobile phone was chosen for this thesis because it is a comprehensive unit of hazardous waste and e-waste. Mobile phones are a municipal solid waste and public health concern. The low energy and low barrier to entry recycling business this thesis envisions recycles precious metals from end of life mobile phones close to where the devices are discarded. This thesis uses system dynamics to model the exponential adoption of mobile phones and its impact in mining and CO₂e emissions. The model is the basis to calculate the return of new precious metal recycling businesses. Climate change is one of the hardest problem men has ever faced because it requires many countries to work together to establish climate centric governance and policies. Businesses are reviewing their supply chain and energy sources. This work focuses on disruptive low energy and low barrier to entry technologies to recycle precious metals from mobile phones. Local recycling businesses will create jobs and stimulate the economy in B.C., Canada, and the world.
Applied Science, Faculty of
Mining Engineering, Keevil Institute of
Graduate

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Faroqui, Shoaib Ahmad, and Liaqat Ali. "Evaluation of Accessibility Through Mobile Phones." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5550.

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This research thesis presents a study of mobile-enhanced accessibility evaluation. In the first phase we have identified the evaluation methods that enable evaluation of mobile-enhanced accessibility. In the second phase we have performed evaluation of a specific mobile-enhanced accessibility prototype named “Augment” based on some selected evaluation methods that enables evaluation of mobile-enhanced accessibility. Finding methodologies for accessibility evaluation is just as important as early assessment. Therefore, in the last step on the basis of the evaluation results and literature review findings, we have presented an efficient and usable evaluation method that would enable valid and reliable evaluation of mobile-enhanced accessibility. The name of the presented evaluation method is “AccessEva” that is a diary method supported by a software application, which will run on a smart phone with the mobile-based accessibility software. This enables the testers to survey user attitudes, and experiences about the mobile-enhanced accessibility. At the end of this diary method period we suggest that a group discussion will be introduced and conducted together with the participants under the supervision of evaluators.
Cell No: +4670044884

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Henrysson, Anders. "Bringing Augmented Reality to Mobile Phones." Doctoral thesis, Norrköping : Department of Science and Technology, Linköpings universitet, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-10204.

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Tzortzakakis, Michail. "Multi-band antennas for mobile phones." Thesis, University of Sheffield, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434598.

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Єременко, А. А. "The latest developments of mobile phones." Thesis, Вид-во СумДУ, 2007. http://essuir.sumdu.edu.ua/handle/123456789/17513.

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Sun, Xiaoyin. "Mobile phone survey methodology in China." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B41897092.

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Pustay, Steven James. "CELL PHONES AND CINEMA: FILMIC REPRESENTATIONS OF MOBILE PHONE TECHNOLOGY AND NEW AGENCY." Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1180537475.

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Hubbert, Maxwell. "Mobile Phones in Social Settings How and What Mobile Phones are Used for during Face-to-Face Conversations." Thesis, Malmö högskola, Fakulteten för kultur och samhälle (KS), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-21679.

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Mobile phone use while in the presence of physical conversational partners is a reality in modern day life. Many researchers have investigated how different subgroups use mobile phones and the consequences of such use. The goal of this research was to determine how mobile phones are used in social settings when face-to-face conversations are taking place. The main questions that the research attempted to solve were: (1) If the phone use was related to the conversation at hand, (2) if the intensity of phone use was correlated to how the phone was used, (3) and if phones are used during conversations in different ways depending on the relationships and demographics of the conversational partners. The research was conducted in Malmö, Sweden at bars and cafes´ by administering a semi structured verbal interview on people seen using their cell phones while in face-to-face conversations. Relevant demographic information was recorded as well as five open ended questions. The questions were aimed at understanding how the phone was used, and the phones use in relation to the physical conversation. The research was conducted using the research paradigm of Positivism and the data was analyzed using an Inductive research strategy. Uses and Gratifications theory was the main theory that this research was viewed through. In addition, relevant information was drawn from various psychological theories as well as problematic mobile phone research. The findings show that the majority of phone use is unrelated to the conversations at hand. But often this phone use is re-integrated into the conversation at a later time. It was also found that phone use related to information retrieval was most likely to be related to the face-to-face conversation. Additionally, the data showed that conversational partners that use the phone a lot are highly unlikely to be using the phone in relation to the conversation. The data showed that friends are most likely to not use the phone in relation to the conversation.

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Rovinelli, Marco. "Realtime Monocular Depth Estimation on Mobile Phones." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24159/.

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Depth estimation is a necessary task to understand and navigate the environment around us. Over the years, many active sensors have been developed to measure depth but they are expensive and require additional space to be mounted. A cheaper alternative consists of estimating depth maps using images taken by a mobile phone camera. Since most mobile phones don't have cameras built for stereo depth sensing, it would be ideal to be able to recover depth from a single image using only the computational capability of the mobile phone itself. This can be achieved by training a neural network on ground truth depth maps. This type of data is very expensive to obtain so it's preferred to train the neural network using self-supervision from multiple images. Since the devices where the trained models will be deployed have only one camera, it is ideal to train the network on monocular videos representing the actual data distribution at deployment. Self-supervised training using monocular videos lowers the accuracy of the depth maps and brings the additional challenge of being able to predict depth only up to an unknown scale factor. To this end, additional information, velocity provided by the GPS, and sparse points computed by a monocular SLAM algorithm, are employed to recover scale and improve the accuracy. This study will investigate different neural network architectures and training schemes to achieve depth maps as accurately as possible given the constraints of the computational budget available on modern mobile phones.

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Kerr, Simon. "Visual based finger interactions for mobile phones." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1006621.

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Vision based technology such as motion detection has long been limited to the domain of powerful processor intensive systems such as desktop PCs and specialist hardware solutions. With the advent of much faster mobile phone processors and memory, a plethora of feature rich software and hardware is being deployed onto the mobile platform, most notably onto high powered devices called smart phones. Interaction interfaces such as touchscreens allow for improved usability but obscure the phone’s screen. Since the majority of smart phones are equipped with cameras, it has become feasible to combine their powerful processors, large memory capacity and the camera to support new ways of interacting with the phone which do not obscure the screen. However, it is not clear whether or not these processor intensive visual interactions can in fact be run at an acceptable speed on current mobile handsets or whether they will offer the user a better experience than the current number pad and direction keys present on the majority of mobile phones. A vision based finger interaction technique is proposed which uses the back of device camera to track the user’s finger. This allows the user to interact with the mobile phone with mouse based movements, gestures and steering based interactions. A simple colour thresholding algorithm was implemented in Java, Python and C++. Various benchmarks and tests conducted on a Nokia N95 smart phone revealed that on current hardware and with current programming environments only native C++ yields results plausible for real time interactions (a key requirement for vision based interactions). It is also shown that different lighting levels and background environments affects the accuracy of the system with background and finger contrast playing a large role. Finally a user study was conducted to ascertain the overall user’s satisfaction between keypad interactions and the finger interaction techniques concluding that the new finger interaction technique is well suited to steering based interactions and in time, mouse style movements. Simple navigation is better suited to the directional keypad.

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Garcia, Wylie Carlos M. "Kinetic and physiological interactions with mobile phones." Thesis, Lancaster University, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.655736.

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It is well accepted that the increasing sedentary lifestyle are helping fuel the dramatic rise of health related problems whilst having a negative impact on the economy, requiring new ways by which to promote and educate with regards to the need and benefits of participating in both short and long term physical activities. The increasing ubiquity and sensor enhancement of mobile devices and phones in particular provide the necessary technology for these purposes. The work presented in this thesis discusses persuasion and the suitability of technology in particular mobile phones to influence behaviour focusing on the use of sensors for this purpose. Mobile exercise monitoring is discussed along with the benefits of including kinetic and physiological sensors in such activities, demonstrated via a mobile persuasive health application utilizing heart rate to assess, record, and monitor fitness levels through built-in cardio-respiratory tests together with location tracking for heart rate analysis over time and location. Video games and in particular 'exergaming' to promote heath is then discussed, presenting a mobile exergame implementing kinetic enabled control mechanisms requiring a degree of physical interaction and heart rate to trigger in-game predefined actions. To conclude the use of a low-cost EEG headset in the area of 'biometric gaming' is presented introducing a mobile biometric game utilizing EEG inputs to trigger in-game conditions discussing the reliability and efficiency of such technology at interpreting such values and the relative impact on gaming, and it possible use in cognitive monitoring. These projects demonstrate the potential of using physiological and kinetic sensors in conjunction with mobile phones to deliver and promote physical activity, structured and/or opportunistic, to change attitudes and participation on daily physical activities using the data obtained from such sensors along with techniques of persuasion to further validate as well as reinforce the reasons behind doing so.

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Schoon, Alette Jeanne. "Raw phones: the domestication of mobile phones amongst young adults in Hooggenoeg, Grahamstown." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1002937.

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This dissertation examines the meanings that young adults give to their mobile phones in the township of Hooggenoeg in Grahamstown in the Eastern Cape. The research was predominantly conducted through individual interviews with nine young adults as well as two small gender-based focus groups. Participant observation as well as a close reading of the popular mobile website Outoilet also contributed to the study. Drawing on Silverstone, Hirsch and Morley’s (1992) work into the meanings attributed to the mobile phone through the domestication processes of appropriation, objectification, incorporation and conversion, the study argues for the heterogeneous roles defined for mobile phones as they are integrated into different cultural contexts. The term ‘raw phones’ in the thesis title refers to a particular cultural understanding of respectability in mainly working-class ‘coloured’¹ communities in South Africa, as described by Salo (2007) and Ross (2010), in which race, class and gender converge in the construction of the respectable person’s opposite – a lascivious, almost certainly female, dependent, black and primitive ‘raw’ Other. The study argues that in Hooggenoeg, the mobile phone becomes part of semantic processes that define both respectability and ‘rawness’ , thus helping to reproduce social relations in this community along lines of race, class and gender. A major focus of the study is the instant messaging application MXit, and how it assists in the social production of space, by helping to constitute both private and dispersed network spaces of virtual communication, in a setting where social life is otherwise very public, and social networks outside of cyberspace are densely contiguous and localised. In contrast, gossip mobile website Outoilet seems to intensify this contiguous experience of space. My findings contest generalised claims, predominantly from the developed world, which assert that the mobile phone promotes mobility and an individualised society, and show that in particular contexts it may in fact promote immobility and create a collective sociability.

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Pustay, Steven J. "Cell phones and cinema filmic representations of mobile phone technology and new agency /." Ohio : Ohio University, 2007. http://www.ohiolink.edu/etd/view.cgi?ohiou1180537475.

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Chai, Chengran. "Determining suitable monetization approaches for mobile phone applications within the smart phones industry." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/80991.

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Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division; in conjunction with the Leaders for Global Operations Program at MIT, 2013.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 44-46).
Smart Phone Ecosystems revolve around developers, applications and users. One of Nokia's own platforms, the S40, targets the low end of the smart phone market. Nokia's Content & Ecosystem Sourcing group is constantly looking for ways to help its developers of the S40 platform create more successful applications. This paper attempts to do so by examining the different monetization approaches for different application categories across all regions. While paid applications still constitute a majority of the revenue generating applications, the S40 marketplace has experienced a significant increase in the number of Try & Buy and In-App-Purchase applications in recent years. Try & Buy has been proven to be a dominant force in gaming categories, albeit with some differences across the regions. In-App- Purchase has also shown promise within games and some other categories, but the acceptance of this monetization approach varies greatly by region. Two new metrics, Revenue per Product View and Downloads per Product View, are proposed to evaluate application performance independent of download volume and monetization approach. Utilizing these new metrics, we found the applications utilize the Try & Buy approach to perform equally as well, if not better than, the applications utilizing the paid approach. The new metrics will enable the group to track the performance of applications from a holistic perspective and more easily identify those developers who have created successful applications. Additionally, the Downloads per Product View metric enables tracking of the reach of the applications, an indicator of the health of the overall ecosystem. The specific knowledge will enable Nokia's Content & Ecosystem Sourcing group to provide more input to developers on monetization approaches during the early stages of development, thereby increasing their chances of launching successful applications, ultimately helping the entire S40 ecosystem.
by Chengran Chai.
S.M.
M.B.A.

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Lund, Carl-Henrik Wolf, and Michael Sars Norum. "The Peer2Me Framework : A Framework for Mobile Collaboration on Mobile Phones." Thesis, Norwegian University of Science and Technology, Department of Computer and Information Science, 2005. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9158.

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This project continues the work started in our depth study project in the fall of 2004, develop- ing a framework for mobile collaborative applications on mobile phones utilizing Personal Area Networks (PANs). This paper describes central, theoretical concepts connected to the Peer-to-Peer (P2P) comput- ing, the Mobile Ad Hoc NETworks (MANETs) and the Computer Supported Cooperative Work (CSCW) domains, focusing on "Same-Place-Same-Time" collaboration. We argue how the spread of PAN technology and mobile phones enable for a broad range of new collaborative applications supporting both collocated work and spontaneous interaction. Updated information about relevant technologies and related projects are discussed and evaluated. The requirements for the Peer2Me framework are presented and updated along with a revised and improved design. The design and the requirements are a product of an explorative development effort to develop the next generation of the Peer2Me framework using Java 2 Micro Edition and the Java APIs for Bluetooth wireless technology (JABWT). The Peer2Me framework is then tested on actual developers in a workshop arranged in May 2005. Data gathered from this workshop is used to illustrate the benefits of using a framework like Peer2Me for developing mobile collaborative applications. In addition to the actual Peer2Me framework implementation along with its Bluetooth network module, example applications are designed, implemented and tested in order to verify the suit- ability of the Peer2Me framework in the problem domain. These applications illustrate different kinds of aspects of the Peer2Me framework and the domain of mobile collaborative applications. The tests of these applications are done through enactment of the usage scenarios from which the applications were derived. The main results of this project are the technical products comprised of the Peer2Me framework, the Bluetooth Network module and the example Peer2Me applications, as well as the empirical data supporting the advantages of Peer2Me and the evaluations upon the suitability of the applied technologies.

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Hamrén, Oskar. "Mobile phones and cloud computing : A quantitative research paper on mobile phone application offloading by cloud computing utilization." Thesis, Umeå universitet, Institutionen för informatik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-60741.

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The development of the mobile phone has been rapid. From being a device mainly usedfor phone calls and writing text messages the mobile phone of today, or commonlyreferred to as the smartphone, has become a multi-purpose device. Because of its size andthermal constraints there are certain limitations in areas of battery life andcomputational capabilities. Some say that cloud computing is just another buzzword, away to sell already existing technology. Others claim that it has the potential to transformthe whole IT-industry. This thesis is covering the intersection of these two fields byinvestigating if it is possible to increase the speed of mobile phones by offloadingcomputational heavy mobile phone application functions by using cloud computing. Amobile phone application was developed that conducts three computational heavy tests.The tests were run twice, by not using cloud computing offloading and by using it. Thetime taken to carry out the tests were saved and later compared to see if it is faster to usecloud computing in comparison to not use it. The results showed that it is not beneficial touse cloud computing to carry out these types of tasks; it is faster to use the mobile phone.

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Mood, Benjamin, and Benjamin Mood. "Optimizing Secure Function Evaluation on Mobile Devices." Thesis, University of Oregon, 2012. http://hdl.handle.net/1794/12505.

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Secure function evaluation (SFE) on mobile devices, such as smartphones, allows for the creation of new privacy-preserving applications. Generating the circuits on smartphones which allow for executing customized functions, however, is infeasible for most problems due to memory constraints. In this thesis, we develop a new methodology for generating circuits that is memory-efficient. Using the standard SFDL language for describing secure functions as input, we design a new pseudo- assembly language (PAL) and a template-driven compiler, generating circuits which can be evaluated with the canonical Fairplay evaluation framework. We deploy this compiler and demonstrate larger circuits can now be generated on smartphones. We show our compiler's ability to interface with other execution systems and perform optimizations on that execution system. We show how runtime generation of circuits can be used in practice. Our results demonstrate the feasibility of generating garbled circuits on mobile devices. This thesis includes previously published co-authored material.

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Mani, Sanaz. "Mobile technologies and public spaces." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/618.

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Mobile technologies are the latest technologies in the realm of communication media. They have the potential to flatten the world by making it a place where gender, age, class, race and nationality can no longer hold us back from being heard and being informed. We have learned that these technologies can help to liberate and empower us, and they can lead to a collective cognition as much as they can distract us from what we need to know about the world we live in. In Greece thousands of years ago, a selected number of Greeks had a public space called the Agora to discuss the issues that concerned the public, meaning each and every citizen. They were the first to be able to create the space and place were the word “democracy” could be brought into language; the very word that was used to start a new war in the era of a communication revolution in the 2003 invasion of Iraq. There are still issues that concern the public today such as wars, global warming, homelessness or human rights which are all matters of our collective cognition. However, today in an age of information revolution the public life of people and their collective cognition is being exercised mostly in the virtual spaces of the Internet. Simultaneously, some physical spaces are being abandoned by people. This thesis investigates the possibility of having physical public spaces that are enriched with communication media and not weakened by it. If architects rethink their designs based on a new understanding of the networked society it might be possible to turn this “networked individualism” into a networked collectivism. However, most designed public spaces fail to offer new possibilities that can transform space for the new generation of users. Here, the aim is to understand a new generation of users. Who have they become as a result of new communication media? And how can architects design in a way that responds to this new subject in architecture?

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Ruan, Zheng. "Wireless Sensor Network Deployment in Mobile Phones Environment." Thesis, Uppsala University, Department of Information Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-111248.

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Participatory sensing is a rising and promising field, which utilizes mobile phone users as mobile wireless sensors to gather data. However, because of the randomness of its participants, it is necessary to deploy wireless sensors in the sensing area at the same time, in order to gather enough quantity data with satisfactory quality. The deployment becomes a challenge because participatory sensing processes are dynamic and wireless sensor networks are relatively static.

In this thesis, we propose a framework for the wireless sensors deployment in the participatory sensing campaigns. The aim is to minimize the number of sensors deployed, while providing enough satisfactory quality of data. Our framework consists of several sub-models and has a great flexibility. The experiments prove a good performance for our deployment framework.

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Salomonsson, Axel. "mHealth : Mobile phones in HIV prevention in Uganda." Thesis, Örebro universitet, Akademin för humaniora, utbildning och samhällsvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-15581.

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mHealth – Mobile phones in HIV prevention in Uganda by Axel Salomonsson Abstract The use of ”new” interactive media like the Internet and cell phones in health education is not an entirely new phenomenon and studies shows promising results from such information campaigns in developed countries[1]. In the area of HIV/AIDS prevention, however, no scientific studies have been made on the effects of mobile phone-based information campaigns in developing countries. This study can therefore be seen as a pilot study in this area. As mobile phone ownership has multiplied in Africa over the last decade, it has become one of the most reliable mediums for mass communication about health issues. This is a case study of one HIV/AIDS prevention campaign from 2009, where two NGO’s used a multiple choice SMS quiz to ask questions about HIV/AIDS to ten thousand mobile phone owners in the Arua region in North-Western Uganda. The targeted population could send their answers back and win prizes. They were also encouraged to seek out HIV counseling and testing services at a local clinic. By using a qualitative method consisting of a literature study combined with semi-structured interviews with the people who organized the intervention, as well as with respondents to the SMS quiz , the effectiveness and future potential of using mobile phones in HIV prevention in the East African setting are examined. Additional qualitative interviews with a number of experts from the Ugandan telecom sector, the Ugandan Ministry of Health, and an HIV/AIDS researcher from Makerere University in Kampala was also conducted in order to get a better understanding of the context in which this HIV prevention intervention was implemented. The results show that mobile phones are a feasible medium in HIV prevention, and that it offers an additional channel for information dissemination. By allowing two-way communication, the audience is empowered to participate in the exchange of information, which seems to have a positive effect on attitude and behavior change. Further, by receiving answers via SMS from the targeted population, the mobile can at the same time be used as a monitoring and evaluation tool for measuring knowledge levels on different topics. This information can then help to tailor HIV prevention messages in future campaigns. [1] See Bull, S: Internet and other computer technology-based interventions for STD/HIV prevention, in Communication Perspectives on HIV/AIDS for the 21st Century. Edgar et al. 2008.

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Grubbström, Thomas. "Mechanical Design of Stylus Mechanisms for Mobile Phones." Thesis, KTH, Maskinkonstruktion (Inst.), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-100675.

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Detta examensarbete är ett produktutvecklingsprojekt som har genomförts i samarbete med Sony Ericsson Mobile Communications vid avdelningen för Mechanical Development i Kista. Ett kännetecken för Sony Ericssons open platform-mobiltelefoner är pekskärmen med det tillhörande pekdonet. Fastsättandet av pekdonets delar samt retain-release-mekanismen för pekdonet skulle utvecklas ytterligare mekaniskt. Delen av detta examensarbete som rörde fastsättandet av de ingående delarna av pekdonet gavs en mindre del än utvecklandet av retainrelease- mekanismen. Studier kring examensarbetets två områden visade mer exakt på vad som behövdes utvecklas. Kartläggningen utfördes genom att studera intern dokumentation, externa produkter och användarrelaterade frågor. I fallet med fastsättandet av delarna av pekdonet upptäcktes det att skruvgängan, vilket är det vanligaste sättet att sätta samman delarna, är en dyr lösning. Vidare upptäcktes det att det är möjligt för en användare att demontera pekdonet, samt att limmet som tillsätts och ytbehandlingen av delarna är dyr. Det upptäcktes även att ergonomin inte är optimal. Retain-release-mekanismen för pekdonet på senare mobiltelefoner har en relativt enkel konstruktion. Den består vanligtvis av en trådfjäder eller en bladfjäder. Dessa fjädrar håller enbart pekdonet i ett bestämt läge inuti mobiltelefonen vilket leder till att användaren måste pilla ut pekdonet. Avsikten var att göra detta utförande mer elegant. Konceptgenereringen resulterade i två stycken koncept för fastsättande av pekdonets delar; ett kortsiktigt koncept som kunde implementeras omedelbart och ett långsiktigt koncept som behövde mer studier och utveckling. Ett koncept på retain-release-mekanism för pekdonet slutfördes med unik konstruktion liknande push-push-mekanismer som finns i vanliga kulspetspennor. Prototyper beställdes och utvärderades och de slutgiltiga koncepten modifierades för att bli optimala.
This Master of Science Thesis is a product development project that has been carried out in cooperation with Sony Ericsson Mobile Communications at the Department of Mechanical Development in Kista. A distinctive feature on Sony Ericsson’s open platform mobile phones is the touch screen with the accompanying stylus pen. This was to be developed further mechanically in terms of the joints of the stylus parts and the retain-release mechanism for the stylus. The part of the thesis that concerned the joints of the stylus parts was to be given smaller space than the development of the retain-release mechanism. Studies in the fields of the two areas of the thesis were done which elucidated more precisely what was needed to develop. This was done by studying internal documentation, external products and user-related issues. In the case of the joints of the stylus parts it was discovered that the screw threaded joint, which is the most common joint on later styli, is expensive. Furthermore, it is possible to disassemble the stylus by the user and the glue that is added to the joints and the painting of the parts are expensive. Another thing that was discovered was that the ergonomics of most styli has to be improved. The retain-release mechanism on later mobile phones has a relatively simple design. This consists usually of a wire spring or a leaf spring. These stylus springs only retains the stylus in the mobile phone which leads to that the user has to pick the stylus out. The aim was to make this release more elegant. The concept generating processes resulted in two final concepts for the joints of the stylus parts; one short-term concept that could be implemented immediately and one long-term concept that needed more studies and development. One concept of the retain-release mechanism was finalized which has a unique design similar of push-push mechanisms that are found in many pens. Prototypes were ordered and evaluated and the final concepts were modified to be optimal

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Edim, Azom Emmanuel. "Mobile phones interaction techniques for second economy people." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/519.

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Second economy people in developing countries are people living in communities that are underserved in terms of basic amenities and social services. Due to literacy challenges and user accessibility problems in rural communities, it is often difficult to design user interfaces that conform to the capabilities and cultural experiences of low-literacy rural community users. Rural community users are technologically illiterate and lack the knowledge of the potential of information and communication technologies. In order to embrace new technology, users will need to perceive the user interface and application as useful and easy to interact with. This requires proper understanding of the users and their socio-cultural environment. This will enable the interfaces and interactions to conform to their behaviours, motivations as well as cultural experiences and preferences and thus enhance usability and user experience. Mobile phones have the potential to increase access to information and provide a platform for economic development in rural communities. Rural communities have economic potential in terms of agriculture and micro-enterprises. Information technology can be used to enhance socio-economic activities and improve rural livelihood. We conducted a study to design user interfaces for a mobile commerce application for micro-entrepreneurs in a rural community in South Africa. The aim of the study was to design mobile interfaces and interaction techniques that are easy to use and meet the cultural preferences and experiences of users who have little to no previous experience of mobile commerce technology. And also to explore the potentials of information technologies rural community users, and bring mobile added value services to rural micro-entrepreneurs. We applied a user-centred design approach in Dwesa community and used qualitative and quantitative research methods to collect data for the design of the user interfaces (graphic user interface and voice user interface) and mobile commerce application. We identified and used several interface elements to design and finally evaluate the graphical user interface. The statistics analysis of the evaluation results show that the users in the community have positive perception of the usefulness of the application, the ease of use and intention to use the application. Community users with no prior experience with this technology were able to learn and understand the interface, recorded minimum errors and a high level of v precision during task performance when they interacted with the shop-owner graphic user interface. The voice user interface designed in this study consists of two flavours (dual tone multi-frequency input and voice input) for rural users. The evaluation results show that community users recorded higher tasks successes and minimum errors with the dual tone multi-frequency input interface than the voice only input interface. Also, a higher percentage of users prefer the dual tone multi-frequency input interface. The t-Test statistical analysis performed on the tasks completion times and error rate show that there was significant statistical difference between the dual tone multi-frequency input interface and the voice input interface. The interfaces were easy to learn, understand and use. Properly designed user interfaces that meet the experience and capabilities of low-literacy users in rural areas will improve usability and users‟ experiences. Adaptation of interfaces to users‟ culture and preferences will enhance information services accessibility among different user groups in different regions. This will promote technology acceptance in rural communities for socio-economic benefits. The user interfaces presented in this study can be adapted to different cultures to provide similar services for marginalised communities in developing countries

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Williford, Bradley John. "Mobile Phones Coupled with Remote Sensors for Surveillance." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/6887.

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Highly mobile, maneuver units require the ability to rapidly provide perimeter defense for their assets. Remote sensors, combined with wireless networks and Smartphones offer a means to reduce manpower impacts of perimeter surveillance. The unit can deploy sensors around their perimeter and/or key locations, and use the Smartphone to monitor them. These sensors can be used to detect personnel and vehicles depending upon the sensors capabilities. To demonstrate this, a Smartphone running the Android 2.3 OS and various sensors manufactured by Phidgets, Inc., are used to develop a real-time surveillance system. The system capabilities include wireless transmission of data and detection of vibration, movement, infrared motion, and sound. The limitations of our study are that Phidgets sensors rely on external power, are not weather-resistant, and have to be plugged into a control board to operate. A fully functional system designed to support the needs of maneuver units in virtually any operating environment would enhance the units capabilities and security.

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Dewancker, Ian. "Lifespace tracking and activity monitoring on mobile phones." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46269.

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Daily patterns of behaviour are a rich source of information and play an important role in establishing a person???s quality of life. Lifespace refers to measurements of the frequency, geographic extent and independence of an individual???s travels. While difficult to measure and record automatically, lifespace has been shown to correlate to important metrics relating to physical performance, nutritional risk, and community engagement. MobiSense is a mobile health research platform that aims to improve mobility analysis for both ambulating and wheelchair users. The goals of the system were to be simple for users to collect mobility data, provide accessible summaries of daily behaviours and to enable further research and development in this area. The system is capable of lifespace summaries relating to indoor and outdoor mobility as well as activity trends and behaviours. For indoor reporting, we investigated robust classification algorithms for room level indoor localization using WiFi signal strengths. We pursue topological map localization as it requires simpler map models while preserving useful semantic information associated with location. Personalized maps are easy to create by capturing training observations in areas of interest. Outdoor summaries are captured by periodically recording GPS fixes. For activity monitoring, a decision tree classifier was learned using a combination of accelerometer and GPS features. The classifier can differentiate between stationary, wheeling (in a wheelchair), walking or vehicle motion. To capture the relevant sensor data, we extended an open source logging application which records data streams locally before uploading data to a web service to process and visualize results. The custom web service processes the data and generates summary files which can then be visualized either for each individual day or over a user selected date range. We employed a heat map visualization for outdoor lifespace to understand the geographic extent of a user???s mobility. For indoor and activity summaries, we employed temporal line charts to understand trends in a user???s mobility.

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Schaefer, Samuel. "Colorimetric water quality sensing with mobile smart phones." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46570.

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The goal of this thesis is to develop water quality sensors that are portable, low cost, easy to use, and accurate. Such technology may potentially be beneficial for a significant portion of the world's population who use ground water that is neither tested nor treated. We have developed two versions of a colorimetric water quality sensor using an approach based on integration with mobile smart phones. Mobile smart phones are advanced communication devices with features including a touch-based interface, internet connectivity, and operating systems capable of running application software (apps). Integration of these features with sensor hardware can yield a new class of sensors with augmented usability, data mobility, and general appeal. The first sensor prototype created in this work is based on a sensor attachment that physically connects to an iPhone smart phone, utilizing the flash and camera onboard the iPhone to perform colorimetric measurement of water samples. The second sensor prototype created is based on a colorimetric sensor node that wirelessly communicates with an Android smart phone through Bluetooth connection. Both sensors are capable of measuring pH and the concentrations of chlorine and alkalinity, with accuracy and precision comparable to industry-standard colorimeters. The distinguishing features of our prototypes include high portability, operation without instruction manuals by interaction with a user through a graphical interface, high data mobility by exploiting the internet connectivity of smart phones, and rapid water quality measurements.

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Choe, Alison. "How Mobile Phones Can Spark an Entrepreneurial Revolution." Scholarship @ Claremont, 2017. http://scholarship.claremont.edu/scripps_theses/938.

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In the last decade, there has been an exponential rise in mobile phones in both developed and developed countries. In light of that, this paper investigates whether the expansion of such mobile networks leads to increased entrepreneurial activity. By conducting panel regressions, I find the degree to which various stages of entrepreneurial activity is affected by increased mobile phone subscription rates. I use data from 80 countries from 2007 to 2015 and parse out the different effects between developing and developed countries, and between males and females. I find that larger mobile networks encourage entrepreneurship, particularly in the early stages, with a larger benefit experienced by developed countries compared to developing countries. In addition, more females than males engage in early-stage entrepreneurship due to increased mobile phone subscription rates in developing countries. However, an opposite trend is observed in developed countries. Finally, I also consider potential implications on economic development as a result of such increased business formation.

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Piyasena, Indika Weliwe Gamage. "Evaluating collaborative filtering content recommenders for mobile phones." Master's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/5124.

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Includes bibliographical references (leaves 64-67).
The high adoption of mobile phones coupled with 3G technology can extend Internet access to new communities. Yet such access is currently impractical because mobile phone interfaces are cumbersome to use. In addition, hierarchical menus and search engines pose an interaction barrier to the unfamiliar. A content recommender is proposed to address these issues. Collaborative filtering is a technique developed to make predictions on unobserved items based on the preferences of similar users. User-based collaborative filtering has been identified as a simple, yet reasonably accurate scheme. An evaluation is conducted into how quickly this algorithm can identify preferred content based on user-content interactions.

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Rodrigo, Adela. "Mobile phones as tools for social change. A case study of mobile phone use and access amongst Tanzanian youth." Thesis, Malmö högskola, Fakulteten för kultur och samhälle (KS), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-21138.

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Access, use and ownership of mobile phones is increasing rapidly in Tanzania, as in the rest of Africa. It is estimated that a staggering 97% of the population are able to access a mobile phone, according to a study carried out by the Centre for Economic Policy Research and Vodafone. The growing number of people using mobile phones has led to optimism and speculation regarding its effect on economic and social development. Expectations from mobile phones are high and it has already been coined as Africa’s PC. Expectations are further fuelled by sensationalist headlines in the media such as, Mobile phones join war on African poverty, The mobile revolution sweeps across Africa or Cell phones the latest tool in Africa's fight against HIV and is shaping the discourse on mobile phones for development (M4D). This study was carried out between January and March 2010 in Dar Es Salaam, Tanzania and funded by SPIDER, The Swedish Program for ICT in Developing Regions and commissioned by Femina HIP (Health Information Project) a Tanzanian multimedia civil society initiative that expressed desire for research to be conducted on mobile phones and SMS (Short Messages Service) in Tanzania. This paper contains data from three group interviews and one quantitative survey that was completed by 97 youths. The empirical material gathered is discussed in relation to empowerment and participation, two concepts that have become mainstreamed in development theory and practice and in communication for development. The paper is structured as following. The first chapter provides the aim and purpose of the study as well as its delimitations. The second chapter discusses mobile phones for development while critically looking at the M4D and ICT4D discourse. Also incorporated in this chapter is an example of a mobile phone project that was started in Bangladesh in the late 1990s and is used as an example to represent the empowerment narrative in M4D. A short discussion on this sentiment will conclude the second part. In the third chapter I present my theory. I take a critical look at empowerment and participation, two concepts that have gained, one can say, a moral authority that effectively hides power relations amongst participants, facilitators and donors in development projects. In the fourth chapter I discuss my methodology and how I gathered my material. In the fifth part I present my data and in the last chapter I analyse the empirical material by applying the framework of participation and empowerment. I also discuss what an organisation such as Femina HIP could gain from incorporating mobile phones into their communication strategy.

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Sun, Yong. "A rigorous physical layer investigation of next generation high performance radio LANs." Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390095.

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Samaan, Mireille. "The Effect of Income Inequality on Mobile Phone Penetration." Thesis, Boston College, 2003. http://hdl.handle.net/2345/435.

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Thesis advisor: Timothy Duket
What is the relationship between inequality and the prevalence of mobile phones in a society? It is obvious that being poor is a barrier to owning a mobile phone, but what about simply being poorer than those around you? Stories abound about the benefits mobile phones bring to the poor in developing countries. For example, in Bangladesh's Narshingdi district, mobile phones have made it possible for families who once struggled to survive, to earn more than enough to eat well and live comfortably. These isolated villagers who grow crops or raise livestock can use their village cell phone to speak directly to wholesalers and are able to get better prices for their goods in the marketplace (Ahmed, 2000). In Cote d'Ivoire coffee growers share mobile phones to follow hourly changes in coffee prices in order to sell at the most profitable time (Lopez, 2000). But how likely will these poor people be to access a mobile phone if they are significantly poorer than the “rich” in their countries. In place where there is such a disparity, does unequal income distribution make it less likely that someone will own a cell phone, or does something about the condition make adopting this technology even more widespread? As it turns out, the results of this study indicate that the higher the level of inequality in a country, the more likely someone living there is to own a cell phone. While this result seems counterintuitive, I will discuss in detail a few ways to explain it after giving some background on the subject
Thesis (BA) — Boston College, 2003
Submitted to: Boston College. College of Arts and Sciences
Discipline: Economics
Discipline: College Honors Program

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Chair, Chenai A. "Mobile phones for development: How have women in the informal sector used their mobile phones to enhance themselves and their business?" Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/6833.

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The research looked into how women in the informal sector made use of mobile phones to enhance their wellbeing and their businesses. The study was carried out within the discourse of information technology for development where it is argued that information technologies have the potential to improve on people's lives. This research sought to examine the possibility for development and growth through the conceptual framework of social inclusion and inclusive growth. This was used as a lens to analyse the data on mobile phone use by women in the informal sector. Qualitative research was conducted in three townships in Cape Town, through purposive sampling of five female respondents. Two respondents were in the hairdressing industry, two were in the meat selling industry and one respondent owned a shebeen. The women were running micro enterprises in the informal sector, as they had no other means to provide for themselves and their families. Mobile phones were incorporated into the daily running of business. The functions of the mobile phone mainly used were voice, text and Internet access through social media and instant messaging. Four resources were identified as crucial for the promotion of social inclusion and growth that would enhance the economic and social participation of individuals. These were physical, digital, human and social resources. All of the respondents had the physical resource of mobile phones that varied in functions. Digital resources showed information exchange crucial to the businesses and for the women. Human resources were the skills that that the women had that would allow for utilization of mobile phones. The social resources referred to social capital present that enabled use of mobile phones. Social inclusion and Inclusive growth through use of mobile phones was possible in the social context in which the women were based. Whilst costly mobile phone credit was a limitation directly linked to mobile phone use, women faced structural challenges beyond the functions of the mobile phone. Women in this study harnessed the potential of mobile phones;; together with the resources they already had to improve on their business, impacting on the quality of their lives.

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Allemo, Erik. "Mobile Phones as Technological Companions : Users' Perspectives and Experiences." Thesis, Uppsala University, Department of Information Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-111150.

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The applicability of the term technological companion on mobile phones has been investigated with focus group sessions with mobile phone users in Uppsala, Sweden. A definition of a companion with features like, friendliness, long time proximity, information handling was conceived. With the help of this definition the applicability was then tried with the help of data gathered during the focus group sessions. The study shows that users rarely turn off their phones and that the phones accompany them almost everywhere. The phones are mostly used for communication between people, but also to access information, play music and to take photographs. The users would not want to live their lives without their phones but some of them agree that mobile phones and constantly being within reach can increase the feelings of stress. The users do not agree that they have a relationship to their mobile phones, other than that it is a useful tool for getting things done. Thus it is concluded that the users do not think of their mobile phones in terms of technological companions. Given that mobile phones do share a lot of the features that are thought to be necessary for a companionship it is suggested that mobile phones are likely to be a suitable platform for implementing a technological companion.

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Kubilay, Murat Yasin. "Security On Mobile Phones With Lightweight Cryptographic Message Syntax." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608676/index.pdf.

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Cryptographic Message Syntax (CMS) is a standard for protecting messages cryptographically. Using CMS, messages can be protected in different content types such as signed-data, enveloped-data, digested-data and authenticated-data. CMS is architected around certificate based key management and symmetric cryptography. In this thesis, a lightweight CMS envelope is proposed for the mobile phones which have limited memory and processing power, in order to provide the privacy of the data either stored on them or exchanged by means of multimedia messaging (MMS) and e-mail. A sample prototype is implemented on mobile phone which makes use of the proposed lightweight CMS. The prototype is compared with standard CMS in terms of application size and performance. The application size decreases approximately by 35% and the envelope preparation duration is much shorter with lightweight CMS in comparison to standard CMS.

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Chehimi, Fadi. "Mixed reality advertising and entertainment services for mobile phones." Thesis, Lancaster University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.533105.

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Ilic, Peter. "The impact of mobile phones on collaborative learning activities." Thesis, University of Exeter, 2013. http://hdl.handle.net/10871/15697.

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In light of the ubiquitous nature of mobile communications technology, society is forced to rethink education. When considering the freedom of communication in terms of time and space that this mobile technology provides, educators need to understand how this ever present communications platform can be exploited to enhance collaborative learning. The central theme of this thesis is the role of mobile phones as a support for collaborative learning both in and out of the classroom. The questions asked are: What is the distinctive affordance offered by the mobile phone for collaborative learning? What is the affective relationship between student, mobile phone and homework? Does the intervention affect the relationship between students, their mobile phones and their homework? Does the affordance offered by the technology lead to more awareness of learning? What is the nature of the dialogue with the mobile phone technology? In this thesis, the methodology is designed to explore the area of collaborative learning and the use of mobile phones as a support for collaborative learning through critical reviews of the literature and a year-long exploratory multiple case study integrating both qualitative data analysis and quantitative data analysis. Qualitative exploratory interviews and surveys are combined with extensive quantitative internet log data to provide a detailed image of students’ mobile use during collaborative activities. The results are triangulated, and In light of current research key issues are interpreted and discussed. The findings of the study support four key hypotheses which emerge from the theoretical framework. First, that there are distinctive affordances offered by the mobile phone for collaborative learning that increase learning opportunities. Second, that the affective relationship between students and their mobile phone has a positive influence on attitudes towards homework when the homework involves the use of their mobile phones. Third, that the intervention affected the relationship between students their mobile phone and their homework by reducing barriers between private and public spaces. Fourth, the affordances offered by the technology led to more awareness of content through an increase in opportunities for reflection. In addition, some insights into the nature of the dialogue with the mobile phone technology are explored. These findings have implications for educational theory and practice since they provide evidence to support the incorporation of mobile devices into collaborative educational situations. This research will be of interest to those concerned with the impact of mobile devices on the area of collaborative learning specifically and the field of education in general. The contribution that this research brings to scholarship and to the educational community is an increased understanding of the ways that ubiquitous mobile technology can affect a student’s mobile-based collaborative learning experience. The integration of these findings into the current body of knowledge may lead to improvements in future educational design and highlight areas which require further research.

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Abdullahi, Ali. "Role of mobile phones in agricultural innovation in Nigeria." Thesis, University of Reading, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.625497.

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Innovation is important in agricultural development, particularly in the face of environmental and economic challenges. Therefore, recent thinking has been on agricultural innovation systems, with emphasis on interactions between multiple actors; so communication is central to the systems. Communication landscape has changed radically in rural areas of Nigeria and other countries in Sub-Saharan Africa (SSA) in the past thirteen years through use of mobile technology. This research examines the role of mobile phones in agricultural innovation in Nigeria. Workshops, semi-structured interviews, survey and focus group discussions were used to collect data from 263 respondents from different actors within the agricultural sector in Kano State. The results indicate there are informal innovations in the area in addition to formal innovations introduced to the farmers; they are capable of developing innovations to satisfy their ecological and economic needs. There are variations in the use and adaptation of the innovations (formal and informal) across the localities, which show diversification of agricultural innovations and practices. Agricultural innovation also entails new forms of organisation and new forms of interaction, which fits into the role of mobile phones in changing marketing structure and processes, in addition to changing extension and farmers' ways of facilitating access and use of information. Mobile phones improve grains marketing considerably by increasing contact among farmers and grain traders. Market efficiency is achieved through enhancing exchange of goods and services in addition to increase in income generation and number of customers. There are significant differences in the information exchange between farmers that are beneficiaries of National Agricultural Questions and Answers Services (NAQAS) project and those that are not beneficiaries, mainly due to free services the beneficiaries are enjoying. The project needs to be expanded to cover more farming communities for facilitating information exchange among farmers and other agricultural stakeholders. Promoting grass root innovation is helpful in enabling farmers to meet their environmental and economic needs. In general, various innovation processes ranging from introducing, promoting and adapting formal and informal innovations to changing marketing structure and processes, as well as changing farmers' and extension agents' roles are enhanced through an overwhelming increase in access and use of mobile phones in Kano State, Nigeria.

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Fowler, Jo. "Mobile phones, user behaviour, radiation effects and cognitive performance." Thesis, University of Bristol, 2018. http://hdl.handle.net/1983/12eb2ac0-f43a-4c82-91ed-c4a7b3fe1101.

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Rationale. Mobile phones have rapidly become an essential technology in people’s lives. Despite the many benefits they offer, research shows there have been negative outcomes related to usage behaviour, and health. Background. Dramatic shifts in science change world-views; and most recently in the digital technology revolution. The mobile phone is at the forefront of this. The research question of this thesis is concerned with whether the use of the mobile phone has created a dramatic shift in patterns of human behaviour and communication. It also investigates whether use is a health risk and if radiofrequency electromagnetic fields (RF EMFs) affect cognitive performance of the user. Method. Usage patterns and health concerns in young people are explored through self-report enquiry of questionnaires and interviews. These are followed by experiments to find out if radiation effects from using a mobile phone affect attention and memory. Results and Discussion. Results confirm many benefits of use, particularly for communication, but many detrimental effects, including a range of health concerns. Significant results are found for lateralised and mood effects of RF EMF exposure. A check list is proposed as a contribution towards a standardised protocol for experimental work in this area. Conclusions. Functions that afford communication continue to be the main function of the mobile phone. The way in which users communicate has changed over the two-year period of this study. Two experiments investigating the effect of RF effects showed significant lateralised results in visual tasks. Despite the many benefits users experience with mobile phones, caution is recommended for use. This has relevance for users, mobile phone manufacturers and network providers. Guidance and regulation are essential to encourage and monitor ‘safe’ use of phones.

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Wei, Carolyn Y. "Mobile hybridity : supporting personal and romantic relationships with mobile phones in digitally emergent spaces /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/5820.

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Cooper, Carol. "Going mobile : the domestication of the cell phone by teens in a rural east Texas town." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/21767.

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This thesis explores the use of the cell phone among US teens. The research was conducted in a rural east Texas town, with two student groups, 13-14 year-olds (middle school) and 18-20 year-olds (university), between 2007 and 2008, at a time when 2G cell phones were the norm. The analysis adopts and applies the domestication framework developed by Silverstone and Hirsch (1992) within work on the social shaping of technology (Haddon, 2004; Berker, 2006; Selwyn, 2012), and points to some limitations and areas for further development within this approach. The thesis explores the extent to which teens use of the cell phone serves as a vehicle for self-expression and collective identity. It considers their emotional investment and connection with the cell phone as an extension of the self ; as well as its role as a focus for, and a means of, regulation of young people both by adults and by peers. The analysis suggests that, far from being a matter of free choice and autonomy, teens use of cell phones may be restricted by cost (of texting, calling plan), features (of particular phones), and by parental or institutional rules about how, where and when cell phones may be used. Use may also be regulated by peers in terms of when and with whom to talk or text, enabling peer groups to exclude others. Through the lens of the domestication framework this thesis concludes that teens in this context are not an homogenous group: the ways they incorporate the cell phone into their everyday lives may differ to a degree, not least as a result of parental and institutional regulation. The research does, however, identify broad areas of consensus among teens, partly linked to the geographical and socio-economic context of the participants, which provides a useful comparison with research undertaken on teens elsewhere in the world.

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Standen, Natasha. "The use and meaning of mobile phones in student lives." Thesis, University of Newcastle Upon Tyne, 2003. http://hdl.handle.net/10443/150.

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This thesis demonstrates the popularity of mobile telephony within a population of undergraduate students, and provides explanations regarding the adoption, use and meaning of mobile phones therein. Research has been conducted at the University of Newcastle upon Tyne amongst 1030 18-24 year old, full-time, UK-resident 'traditional entry' students, using social science methods. Due to a lack of existing research on this type of population, the thesis also includes ethnographic data from the everyday lives of the individuals concerned. This data in turn supports the main findings of the research. Although some theorists conceptualise the mobile phone as `impacting' on social life, this research adopts a `social shaping' approach from work in social studies of technology, and is also informed by social anthropology. This theoretical basis helps formulate the argument that changes engendered by the mobile phone must be viewed in association with other recent changes within the University and its population. Correspondingly, the thesis suggests that the mobile phone is now integral to what Haselgrove (1994) terms the 'student experience', precisely because of the nature of this experience for the contemporary undergraduate population. The thesis therefore provides an explanation of the adoption rates, use patterns and meanings associated with mobile phones within the undergraduate population at the University of Newcastle upon Tyne, in conjunction with a study of their behaviours and attitudes. It concludes that the use and meaning of mobile phones in student lives is directly linked to the specific circumstances of the population studied.

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Soriano, Díaz Xavier Andrew. "Mobile tools for community health workers : an application of machine vision for mobile phones." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119710.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2018.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 111-115).
According to a recent report from the World Health Organization (WHO) and the World Bank, as many as half of the world's population lack access to essential health services [1], a factor that contributes to the deaths of more than 5 million children every year. To tackle these problems, countries like India have set in motion a number of initiatives, such as that of Community Health Workers (CHW). However, CHWs feel disempowered as they often lack access to convenient and reliable tools to perform their measurements. In this thesis, we first propose a number of mobile tools that make use of the smartphone camera, combined with machine vision and augmented reality (AR) to extract, collect and analyze data from the image of the child, and provide the CHW with an accurate, faster and automated means of performing Neonatal and Child Health (NCH) measurements, while at the same time, revealing relevant feedback about the health of the patient. The basic measurements include anthropometric information such as Length, Weight and Middle Upper Arm Circumference (MUAC). For initial deployment and field testing of the technology, we partnered with the Public Health Foundation of India (PHFI), which implements much of the training for their accredited social health activists (ASHA). Since the ASHA health worker program is a government program, we obtained approval from the Government of India and conducted a pilot usability study with 13 ASHA workers in the New Delhi slums using our technology, between the months of May and September of 2017. For the study, we created Baby Naapp, an Android application that served as an interface for the ASHA workers to create basic profiles with socio-economic information of their patients, and to perform calls to each of our measurement tools. The findings of this study helped to refine our algorithms and the user experience of our apps. Additionally, we have also explored the use of multi-spectral sensing to capture essential physiological measurements. We have developed an Android mobile application which uses a thermal camera module to automatically measure respiration rate (RR) and respiration rate variability (RRV). This app makes use of machine vision algorithms to detect a human face and then measure the temperature fluctuations in the nostrils to approximate air flow rates and calculate timing parameters. Future research will improve the accuracy of the anthropometric measurement tools by refining the machine vision algorithms and the hardware used to capture the readings, and will also include the thermal respiration app into the NCH kit. The data capturing algorithm will be used to develop a jaundice screening tool, and the data structures created to organize and analyze measurements in the NCH kit can be incorporated into the other verticals of our lab, such as the pulmonary and cardiovascular screening tools.
by Xavier Andrew Soriano Díaz.
M. Eng.

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Sun, Xiaoyin, and 孫曉吟. "Mobile phone survey methodology in China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B41897092.

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Saif, Khalid, and Nazem Alsmadi. "Mobile Phone Antenna Design." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1080.

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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 & 1900MHz), UMTS (2100MHz), Bluetooth & 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.

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