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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

IEEE standard for rechargeable batteries for cellular telephones

January 2006 (has links)
This standard establishes criteria for design analysis for quality and establishes criteria for reliability of rechargeable Li-Ion and Li-Ion polymer batteries for mobile telephone applications. Also included in the standard are battery pack electrical and mechanical construction, packaging technologies, pack and cell level charge and discharge controls, and overall system considerations. / "IEEE Std 1725-2006." "Approved 30 March 2006, IEEE-SA Standards Board." "Published 18 April 2006."--P. [ii]. "SH95526 ; SS95526"--P. [ii] Includes bibliographical references.
12

System and circuit design techniques for WLAN-enabled multi-standard receiver

Zhang, Ling, January 2005 (has links)
Thesis (Ph. D.)--Ohio State University, 2005. / Title from first page of PDF file. Includes bibliographical references (p. 180-186).
13

Staging the "mobile phone carnival" a political economy of the SMS culture in China /

Gao, Wei. January 2005 (has links) (PDF)
Thesis (M.A.)--Simon Fraser University, 2005. / Chair: Andrew Feenberg. Includes bibliographical references (p. 119-133)
14

Smart antennas for third generation wireless personal communications

Tsoulos, George V. January 1996 (has links)
No description available.
15

Optimizing Secure Function Evaluation on Mobile Devices

Mood, Benjamin, Mood, Benjamin January 2012 (has links)
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.
16

Design considerations of MIMO antennas for mobile phones

Usman, Muhammad, Abd-Alhameed, Raed, Excell, Peter S. January 2008 (has links)
Yes / The paper presents a new modeling and design concept of antennas using polar- ization diversity of 2 £ 2 and 3 £ 3 Multiple Input Multiple Outputs (MIMO) system that is proposed for future mobile handsets. The channel capacity is investigated and discussed over Raleigh fading channel and compared to a linear/planner antenna array MIMO channel. The capacity is also discussed over three types of power azimuth spectrums. The results are compared to the constraints capacity limits in which the maximum capacity observed.
17

The relationship between electronic use, sleeping patterns, and EEG patterns

Watts, Douglas A. 01 January 2002 (has links)
This correlation study examined the relationship among frontal EEG recordings, and self reports of computer and cell phone use and sleeping habits. Participants were 20 females and 5 males between the ages of 18 and 40. Results indicated owning a laptop was positively correlated with relative power of beta2 (21-32 Hz) in both hemispheres. Number of minutes of cell phone use per month was also positively correlated with relative power of beta2 activity in both hemispheres. Cell phone usage was also positively correlated with absolute power of SMR ( 12-15 Hz) in both hemispheres. Using a desktop for work was positively correlated with absolute power of alpha (8-12 Hz) activity in both hemispheres. Other significant relationships were also found.
18

The Effect of Income Inequality on Mobile Phone Penetration

Samaan, Mireille January 2003 (has links)
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.
19

The marketing implications and youth perceptions on mobile phone adult content.

Ncube, Nompumelelo. January 2006 (has links)
Mobile telephony has become one of the most commonly used communication tools in the telecommunications industry. The rapid growth of mobile telephony usage and all technology developments in handsets as well as the mobile networks are generating tremendous changes in telecommunications. The changes range from sending text messages, being able to take pictures using the mobile phone, downloading content and being able to access the Internet using the mobile phone. Mobile phones have become an integral part of life and at the same time have established itself as a distribution channel of adult content. By being a distribution channel of adult content it is opening the possibility of children's exposure to adult content on their mobile phones. The availability and accessibility of adult content by the youth has marketing implications for the mobile network operators which need to be taken into account and it raises issues regarding the marketing of the product as well as the debate relating to the brand reputation, corporate image versus potential revenue generation. / Thesis (MBA)-University of Natal, Durban, 2006.
20

Mobile phone survey methodology in China

Sun, Xiaoyin. January 2009 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2009. / Includes bibliographical references (leaves 99-103) Also available in print.

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