Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 25 for “"Mobile System"”.
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Cross -Layer Energy -Efficient Mobile System Design
Finally, the components of the system architecture are tested using adaptive applications. We have developed an adaptive file transfer application and an adaptive video encoding application. This suite of applications is used to show that greater energy savings can be achieved by using a …
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A mobile system for distributed multimedia applications
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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A personal, mobile system for understanding stress and interruptions
… signals over time. Such applications include systems for tracking heart conditions that have been in use by cardiologists for decades to recent prototypes for monitoring elders in cognitive decline. This thesis focuses on addressing the challenges inherent in an interactive monitoring system - …
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Supporting NGO intermediation with internet systems : comparing mobile and web examples for reaching low income urban youth of Cape Town
… computers (preferred by the NGO), and the mobile Internet accessed through low end feature phones. In the target demographic the mobile Internet is very popular for entertainment, especially because of low cost for communication via instant messaging, but the web is more frequently used for …
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Mobile-Based Interactive Music for Public Spaces
With the emergence of modern mobile devices equipped with various types of built-in sensors, interactive art has become easily accessible to everyone, musicians and non-musicians alike. These efficient computers are able to analyze human activity, location, gesture, etc., and based on this …
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Multimodal speech interfaces for map-based applications
… development of multimodal speech interfaces for mobile and vehicle systems. Multimodal interfaces have been shown to increase input efficiency in comparison with their purely speech or text-based counterparts. To date, much of the existing work has focused on desktop or large tablet-sized …
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Improving Mobile SOC's Performance as an Energy Efficient DSP Platform with Heterogeneous Computing
Mobile system-on-chip (SOC) technology is improving at a staggering rate spurred primarily by the adoption of smartphones and tablets. This rapid innovation has allowed the mobile SOC to be considered in everything from high performance computing to embedded applications. In this work, modern SOC's …
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Mobile Collaborative Virtual Environments: A Paradigm Shift from Desktop to Mobile Online Communities
… this article establishes the importance of mobile collaborative environments that are readily accessible for users on mobile devices. The element of mobile accessibility for collaborative environments renders them ubiquitous—they can be used anywhere and at any time. A working prototype is …
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Non-invasive wearable sensing systems for continuous health monitoring and long-term behavior modeling
… priority over the next decade, as medical care systems worldwide become strained by the aging populations. This thesis presents LiveNet, a distributed mobile system based on low-cost commodity hardware that can be deployed for a variety of healthcare applications. LiveNet embodies a flexible …
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Design of a mobile support and content authoring tool to support deaf adults training in computer literacy skills
… Using Community-based co-design we implement two systems: an authoring tool to support lesson content creation by the teacher and a mobile prototype that uses sign language videos to provide computer literacy instruction. We evaluate the two systems to evaluate if they support multimedia-supported …
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A METHOD FOR DYNAMIC BALANCE
… function of the human biological control system. Humans have learned to walk on uneven terrain, keeping the body posture in the vertical position by sensing the direction of gravity. The adaptation of this skill to operations of a truly unstable autonomous mobile robot would be useful in …
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Ultrasound probe localization by tracking skin features
… presents a highly cost-effective and miniature-mobile system for ultrasound probe localization in six degrees of freedom that is robust to rigid patient motion. In this system, along with each acquisition of an ultrasound image, skin features in the scan region are recorded by a lightweight …
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Persuasive Mobile Systems Design to Help People be Physically Active
… Computing. Broadly speaking, a persuasive system is a system designed to change some habits or behaviors of the users by means of persuasion. My research activity sets out to address fundamental questions related to the application of mobile persuasive technologies to real-life problems, …
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Mitigation of differential movements at railroad bridge transition zones
… environment and track movement and (b) develop a mobile system that focuses on tie behavior by measuring rail and crosstie displacements. Three-dimensional dynamic numerical modeling of bridge transition zones was also performed to investigate how changes in ballast settlement affect the …
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Inter-cell interference mitigation in LTE-advanced heterogeneous mobile networks
… for enhancing the network performance of mobile systems, by deploying small cells within the coverage of the ordinary Macro cells. The goals of deploying such networks are to offload data from the possibly congested Macro cells towards the small cells and to achieve enhancements for …
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An Investigation of Turbulence and Diffusion within Vehicle Wakes and On-Road Measurements using an Instrumented Mobile Car and a Stationary Roadside Monitoring System
… occur behind moving vehicles. The instrumented mobile car however is well–suited for on–road measurements, but has been underutilized for this purpose since limited studies have investigated its accuracy at high vehicle speeds. Thus, this work details two on–road measurement campaigns using an …
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Development and Implementation of Wireless Telecommunication Systems a Collection of Relevant Hardware and Software Patents
Modern telecommunication systems and standards are mainly dependent on the availability of digital signal processing capabilities of appropriate hardware components. Two main categories can be distinguished in the development of digital signal processing units. On the one hand a number of general …
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Efficiency Improvement of RF Energy Transfer by a Modified Voltage Multiplier RF DC Converter
… Current (DC) voltage which is able to supply the mobile system. For this purpose, a novel approach for RF DC conversion is proposed. It consists of a modified voltage multiplier RF DC converter circuit by incorporating an inductor at the input of the circuit, which generates an induced voltage …
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Hybrid Orthogonal Code Sequences for High-Density Synchronous CDMA Systems
One of the primary tasks of the mobile system designers in order to support high density of devices in a CDMA system is to create a code sequence with a capacity for large number of spreading code sequences having low cross-correlation values between them, in order to ensure accommodation of large …
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Image processing for biological experiments on a mobile phone
… of these applications. We first demonstrate a mobile system to identify counterfeit and substandard drug products effectively and inexpensively. Our system costs roughly 250 dollars, which is affordable in developing countries in Africa and Asia, where counterfeit and substandard drug products …
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