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2010

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Development Of Novel Backscatter Communication Systems Using A Multi-Hop Framework And Distributed Beamforming, Vikram Reddy Surendra Jan 2010

Development Of Novel Backscatter Communication Systems Using A Multi-Hop Framework And Distributed Beamforming, Vikram Reddy Surendra

Masters Theses

"The goal of this thesis it to develop a wireless networking framework for battery-free devices based on passive, backscatter communication. In contrast to traditional, active communication systems, where the radio signal has to be generated using large amount of energy from batteries, the passive systems reflect the RF signal. The information is encoded by modulating the reflected signal, which consumes significantly less energy than active transmission. The existing passive, backscatter systems have limited communication capabilities. For example, the Radio Frequency Identification (RFID) systems support short-distance, direct communication between active reader and passive tags. The communication range is limited due to …

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Design And Critical Performance Evaluation Of Horizontal Axis Hydrokinetic Turbines, Suchi Subhra Mukherji Jan 2010

Design And Critical Performance Evaluation Of Horizontal Axis Hydrokinetic Turbines, Suchi Subhra Mukherji

Masters Theses

"The current work discusses the hydrodynamic performance of horizontal axis hydrokinetic turbines (HAHkT) under different turbine geometries and flow conditions. Hydrokinetic turbines are a class of zero-head hydropower systems which utilize kinetic energy of flowing water to drive a generator. However, such turbines often suffer from low-efficiency. A detailed computational fluid dynamics study was performed using a low-order k-[omega] SST (Shear Stress Transport) turbulence model to examine the effect of each of tip-speed ratio, solidity, angle of attack and number of blades on the performance of small HAHkTs with a power capacity of 10 kW. The numerical models (both two-dimensional …

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Relationships Between Life Satisfaction, Symptoms Of Adhd, And Associated Outcomes In Middle School Students, Lisa Paige Bateman Jan 2010

Relationships Between Life Satisfaction, Symptoms Of Adhd, And Associated Outcomes In Middle School Students, Lisa Paige Bateman

USF Tampa Graduate Theses and Dissertations

Given increased evidence related to the importance of fostering life satisfaction in the overall population (Diener & Diener, 1996), as well as recent suggestions regarding the importance of increasing positive academic and social outcomes for youth with ADHD (DuPaul, 2007), it is important to gain a clearer understanding of how life satisfaction may be related to ADHD symptoms. Although research has examined the relationship between life satisfaction and externalizing behavior (Suldo & Huebner, 2004a), research on the relationship between life satisfaction and ADHD is currently limited. This study examined if levels of ADHD symptoms predicted reports of life satisfaction in …

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Magnetocaloric Effect In Thin Films And Heterostructures, Christopher Bauer Jan 2010

Magnetocaloric Effect In Thin Films And Heterostructures, Christopher Bauer

USF Tampa Graduate Theses and Dissertations

The goals of this work are the optimization of the magnetocaloric effect in Gadolinium thin film structures. We approach this issue from two directions, that of process optimization and of interface effects. Past results showed Gd2O3 in our Gadolinium thin films, and the presence of such oxide seemed to grow with the temperature at which the film was grown or annealed. Comparison of samples grown without chamber gettering to those that were gettered show differences in their structural and magnetic properties, and we conclude that gettering is an effective step in enhancing the quality of Gd thin …

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Design Of Regular Reversible Quantum Circuits, Dipal Shah Jan 2010

Design Of Regular Reversible Quantum Circuits, Dipal Shah

Dissertations and Theses

The computing power in terms of speed and capacity of today's digital computers has improved tremendously in the last decade. This improvement came mainly due to a revolution in manufacturing technology by developing the ability to manufacture smaller devices and by integrating more devices on a single die. Further development of the current technology will be restricted by physical limits since it won't be possible to shrink devices beyond a certain size. Eventually, classical electrical circuits will encounter the barrier of quantum mechanics. The laws of quantum mechanics can be used for building computing systems that work on the principles …

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Deriving An X-Ray Luminosity Function Of Dwarf Novae Based On Parallax Measurements, K. Byckling, K. Mukai, J. R. Thorstensen, J. P. Osborne Jan 2010

Deriving An X-Ray Luminosity Function Of Dwarf Novae Based On Parallax Measurements, K. Byckling, K. Mukai, J. R. Thorstensen, J. P. Osborne

Dartmouth Scholarship

We have derived an X-ray luminosity function using parallax-based distance measurements of a set of 12 dwarf novae, consisting of Suzaku, XMM-Newton and ASCA observations. The shape of the X-ray luminosity function obtained is the most accurate to date, and the luminosities of our sample are concentrated between ~10^{30}-10^{31} erg s^{-1}, lower than previous measurements of X-ray luminosity functions of dwarf novae. Based on the integrated X-ray luminosity function, the sample becomes more incomplete below ~3 x 10^{30} erg s^{-1} than it is above this luminosity limit, and the sample is dominated by X-ray bright dwarf novae. The total integrated …

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Reading Habits Of Senior Secondary Students At Allahabad City, U.P., India, Devendra Kumar, M. M.A. Ansari Jan 2010

Reading Habits Of Senior Secondary Students At Allahabad City, U.P., India, Devendra Kumar, M. M.A. Ansari

Library Philosophy and Practice (e-journal)

This is a report on a readership survey carried out among the senior secondary students at Allahabad City, U.P. (India). The present study explores the reading habits of senior secondary students in Allahabad City. The present study demonstrates the various aspects of reading habits like the motives of study, reading materials borrowed from library, time spent for the serious reading, use reference materials, languages of newspaper that read daily, sections of newspapers read, place of reading, and to develop some suggestions for solution of the problem. Suggestions have been given to make the service more beneficial in the school libraries.

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Investigating The Presuppositional Realm Of Biblical-Theological Methodology, Part Iv: Critique And Transformation, Oliver Glanz Jan 2010

Investigating The Presuppositional Realm Of Biblical-Theological Methodology, Part Iv: Critique And Transformation, Oliver Glanz

Andrews University Seminary Studies (AUSS)

No abstract provided.

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