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Experimental Study Of Cooperative Communication Using Software Defined Radios, Murali Krishna Marunganti 2010 Cleveland State University

Experimental Study Of Cooperative Communication Using Software Defined Radios, Murali Krishna Marunganti

ETD Archive

The aim of this thesis is to implement and test a real time wireless communication environment. Cooperative Communication is one of the methods by which a reliable communication can be obtained. This is performed using a Software Defined Radio. The received output is compared with the actual signal that is transmitted over the wireless channel. The wireless communications are often hindered by the noisy environments and make the system unreliable. The interference from neighboring nodes also poses a major disadvantage. There is a necessity to improve the performance of the system where the neighbor nodes can work in coordination with ...


Computational Complexity Of Signal Processing Functions In Software Radio, Kushal Y. Shah 2010 Cleveland State University

Computational Complexity Of Signal Processing Functions In Software Radio, Kushal Y. Shah

ETD Archive

The increased usage of mobile communication devices has imposed a challenge of achieving efficient communication with minimum power consumption. Moreover, with the advent of software defined radios (SDR), it is highly possible that signal processing functions would be implemented in software in future mobile devices. Hence, the power consumption of these future devices will be directly related to the power consumed by the processor that executes SDR software. This thesis aims at analyzing the computational complexity of different modulation schemes and signal processing communication functions of IEEE WiFi standard. This analysis provides good insight on how the computational load varies ...


Impacts Of Coal Shrinkage, Permeability And Petrography On Gas Regime In Mines Case Study: Tahmoor Coal Mine, Nsw, Australia, Naj Aziz, Ian Porter, F Sereshki 2010 University of Wollongong

Impacts Of Coal Shrinkage, Permeability And Petrography On Gas Regime In Mines Case Study: Tahmoor Coal Mine, Nsw, Australia, Naj Aziz, Ian Porter, F Sereshki

Faculty of Engineering and Information Sciences - Papers: Part A

The volumetric changes in the coal matrix (Coal Shrinkage), permeability under various gas environment conditions as well as perographical properties were studied in the laboratory. The shrinkage and permeability of coal were examined with respect to changing gas type and confining pressures. The shrinkage tests were carried out in high-pressure bombs while the permeability study was conducted in a specially constructed high-pressure chamber. Methane (CH4), carbon dioxide (CO2), nitrogen, (N2) and a 50%-50% volume mixture of CO2/CH4 gas were used in the study. The tests showed that under different pressure levels gas type affected permeability and shrinkage characteristics ...


Characterizing The Controlled Release Of Glial Cell-Line Derived (Gdnf) Neurotrophic Factor From Encapsulated Schwann Cells, Kristy Broadrick 2010 Wayne State University

Characterizing The Controlled Release Of Glial Cell-Line Derived (Gdnf) Neurotrophic Factor From Encapsulated Schwann Cells, Kristy Broadrick

Wayne State University Theses

ABSTRACT

CHARACTERIZING THE CONTROLLED RELEASE OF GDNF IN SCHWANN CELLS

by

KRISTY BROADRICK

May 2010

Advisor: Dr. Pamela VandeVord

Major: Biomedical Engineering

Degree: Masters of Science

Controlled expression of glial cell line derived neurotrophic factor (GDNF) can be integrated in the development of a system for repair of injured peripheral nerves. This delivery strategy was demonstrated via inducible GDNF from microencapsulated cells in barium alginate. The Schwann cell line RT4-D6P2T was initially modified utilizing an ecdysone-based stable transfection system to produce RT4-GDNF cells. During construct preparation, it was found that C6 cells (where GDNF cDNA was isolated) make three GDNF ...


Digital Human Models Of People With Disabilities, Ron Hamameh 2010 Wayne State University

Digital Human Models Of People With Disabilities, Ron Hamameh

Wayne State University Theses

The current state-of-the-art in Digital Human Modeling (DHM) allows for full simulation and analysis of any task a person is required to perform at home, at work, in the military, in space, in sports, etc. The problem is that the software is missing a very important population: people with physical disabilities. What modifications and enhancements must be made to existing, commercially available DHM software to include this population?


The Acute And Sub-Acute Effects Of Electrosurgical And Ultrasonic Surgical Devices On The Neurophysiologic Changes Of Sciatic Nerve Function, Anuja Gopalkrishna Vedpathak 2010 Wayne State University

The Acute And Sub-Acute Effects Of Electrosurgical And Ultrasonic Surgical Devices On The Neurophysiologic Changes Of Sciatic Nerve Function, Anuja Gopalkrishna Vedpathak

Wayne State University Theses

THE ACUTE AND SUB-ACUTE EFFECTS OF ELECTROSURGICAL AND ULTRASONIC SURGICAL DEVICES ON THE NEUROPHYSIOLOGIC CHANGES OF SCIATIC NERVE FUNCTION

Since the dawn of medicine, blood loss during surgeries has been one of the major concerns for the surgeons. Iatrogenic blood loss can have several harmful effects on the patient condition. With the rapid development in technology, the blood loss can now be significantly minimized by using a variety of vessel sealing devices that use several energy sources to seal the blood vessels or tissue bundles instead of traditional sutures and clips. These devices can be used in several general, colorectal ...


A Novel Image Processing Platform Development For Preprocessing Images With Two-Phase Microstructures Containing Isolated Particles, Yuxiu Zhang 2010 Wayne State University

A Novel Image Processing Platform Development For Preprocessing Images With Two-Phase Microstructures Containing Isolated Particles, Yuxiu Zhang

Wayne State University Theses

A novel image processing platform is developed in this thesis for pre-processing the images of two-phase microstructures containing isolated particles based on Matlab®. The two phases in this work represent martensite particles and ferrite matrix in Dual Phase steels that are developed for lightweight automotive body structures. An automated image processing tool is useful for obtaining statistical microstructure characteristics, important for better understanding material's deformation and fracture behavior. However, a generalized commercial software can not automatically realize the microstructural features of special interest, and a user-specified pre-processing tool is needed.

This platform utilizes the Matlab® GUI technique, Matlab image ...


Comparison Of Thermal Stability In Max211 And 312 Phases, Wei Kong Pang, It-Meng Low, B H. O'Connor, Andrew J. Studer, Vanessa Peterson, Zheng-Ming Sun, J P. Palmquist 2010 Curtin University of Technology

Comparison Of Thermal Stability In Max211 And 312 Phases, Wei Kong Pang, It-Meng Low, B H. O'Connor, Andrew J. Studer, Vanessa Peterson, Zheng-Ming Sun, J P. Palmquist

Faculty of Engineering and Information Sciences - Papers: Part A

The susceptibility of four MAX phases (Ti2AlC, Cr2AlC, Ti3AlC2, and Ti3SiC2) to high-temperature thermal dissociation in vacuum has been investigated using in-situ neutron diffraction.


Bennett Clocking Of Nanomagnetic Logic Using Multiferroic Single-Domain Nanomagnets, Jayasimha Atulasimha, Supriyo Bandyopadhyay 2010 Virginia Commonwealth University

Bennett Clocking Of Nanomagnetic Logic Using Multiferroic Single-Domain Nanomagnets, Jayasimha Atulasimha, Supriyo Bandyopadhyay

Mechanical and Nuclear Engineering Publications

The authors show that it is possible to rotate the magnetization of a multiferroic (strain-coupled two-layer magnetostrictive-piezoelectric)nanomagnet by a large angle with a small electrostatic potential. This can implement Bennett clocking [Int. J. Theor. Phys.21, 905 (1982)] in nanomagnetic logic arrays resulting in unidirectional propagation of logic bits from one stage to another. This method is potentially more energy efficient than using spin-transfer torque for magnetization rotation. For realistic parameters, it is shown that a potential of ∼0.2 V applied to a multiferroicnanomagnet can rotate magnetization by nearly 90° to implement Bennett clocking.


Accelerated Aging Of Mwcnt Filled Electrically Conductive Adhesives, Ashwanth Reddy Vangala 2010 University of Kentucky

Accelerated Aging Of Mwcnt Filled Electrically Conductive Adhesives, Ashwanth Reddy Vangala

University of Kentucky Master's Theses

Electrically conductive adhesives (ECA) are discussed and studied with everincreasing interest as an environmentally friendly alternative to solder interconnection in microelectronics circuit packaging. They are used to attach surface mount devices (SMD), Integrated Circuits (IC) and Flip chips in electronic assembly. The use of ECAs brings some benefits like flexibility, mild processing conditions and process simplicity. Multi walled carbon nanotubes (MWCNT) are used instead of metal fillers because of their novel properties such as light weight, high aspect ratio, corrosion resistant, reduced processing temperature, lead free, good electrical conduction and mechanical strength.

The purpose of the present work is to ...


Hot Water, Dry Streams: A Tale Of Two Trout, Jack R. Tuholske 2010 Vermont Law School

Hot Water, Dry Streams: A Tale Of Two Trout, Jack R. Tuholske

All In-Stream Flows Material

Norman Maclean’s timeless memoir A River Runs Through It begins with the reflection that in his household “there was no clear line between religion and fly fishing.”1 That zeal remains today; nearly 30 million Americans call themselves fishermen.2 Anglers devoted an aggregate of 517 million user-days pursuing their passion in 2006 and spent billions of dollars to support it.3 Fishing in the western United States holds a special place in fishing lore the world over and for good reason. From the great trout waters of Montana, to the salmon-laden rivers of the west coast, to the ...


A Comparative Guide To The Western States' Public Trust Doctrines: Public Values, Private Rights, And The Evolution Toward An Ecological Public Trust, Robin Kundis Craig 2010 The Florida State College of Law

A Comparative Guide To The Western States' Public Trust Doctrines: Public Values, Private Rights, And The Evolution Toward An Ecological Public Trust, Robin Kundis Craig

All In-Stream Flows Material

In the arid West, balancing private needs for fresh water to consume against the public values-recreational, aesthetic, and ecological-served by leaving fresh water in situ has tended to favor the private use side. Evidence of this result is both massive and minor, ranging from California's multi-billion-dollar water transportation system,1 to the routine de-watering of the Colorado River so that little to no water reaches the Sea of Cortez,2 to water-related Endangered Species Act lawsuits in dozens of watersheds. 3


What Is Transportation Engineering, Michael A. Knodler 2010 University of Massachusetts - Amherst

What Is Transportation Engineering, Michael A. Knodler

Science and Engineering Saturday Seminars

"The branch of engineering which applies technology, science, and human factors to the planning, design, operations and management of roads, streets, bikeways, highways, their networks, terminals, and abutting lands” The objective is to provide for the safe, rapid, comfortable, efficient, convenient, and environmentally compatible movement of people, goods, and services.


Aviation History, Southwest Minnesota State University 2010 Minnesota State University, Mankato

Aviation History, Southwest Minnesota State University

Aeronautics

Bibliography and photographs of a display of government documents from Southwest Minnesota State University.


A New Class Of Attacks On Time Series Data Mining, Ye Zhu, Yongjian Fu, Huirong Fu 2010 Cleveland State University

A New Class Of Attacks On Time Series Data Mining, Ye Zhu, Yongjian Fu, Huirong Fu

Electrical Engineering & Computer Science Faculty Publications

Traditional research on preserving privacy in data mining focuses on time-invariant privacy issues. With the emergence of time series data mining, traditional snapshot-based privacy issues need to be extended to be multi-dimensional with the addition of time dimension. We find current techniques to preserve privacy in data mining are not effective in preserving time-domain privacy. We present the data flow separation attack on privacy in time series data mining, which is based on blind source separation techniques from statistical signal processing. Our experiments with real data show that this attack is effective. By combining the data flow separation method and ...


Assuming The Risk: Tort Law, Policy, And Politics On The Slippery Slopes, Eric Feldman, Alison I. Stein 2010 University of Pennsylvania Law School

Assuming The Risk: Tort Law, Policy, And Politics On The Slippery Slopes, Eric Feldman, Alison I. Stein

Faculty Scholarship at Penn Law

Prominent jurists and legal scholars have long been critical of the doctrine of the assumption of risk, arguing that it is logically flawed and has sown confusion in the courts. This article takes a fresh look at the assumption of risk by focusing on legal conflicts over ski accidents in three ski-intensive states—Vermont, Colorado, and California. It argues that the tort doctrine of the assumption of risk remains vital, and highlights the way in which powerful political and economic actors with links to the ski industry have lobbied aggressively for state laws that codify the assumption of risk. The ...


A New Perspective On First Read Rate Of 2d Barcodes In Mobile Applications, Keng Tiong (Alf) Tan, Douglas Chai 2010 Edith Cowan University

A New Perspective On First Read Rate Of 2d Barcodes In Mobile Applications, Keng Tiong (Alf) Tan, Douglas Chai

ECU Publications Pre. 2011

The first read rate (FRR) has been one of the traditional benchmark metric for measuring the performance of barcode systems. In recent studies, it has been noted that the FRR alone is not a complete measure of user experience, especially of barcodes in mobile applications. In this paper, we present a further three factors that would influence the user experience of mobile 2D barcodes. Our investigation is based on a quantitative survey of a controlled study participated by 250 lay users of mobile phones, through reading QRCode and Data Matrix barcodes with a variety of camera mobile phones. Observations from ...


Financial Risk Management In Restructured Wholesale Power Markets: Concepts And Tools, Nanpeng Yu, Abhishek Somani, Leigh Tesfatsion 2010 Iowa State University

Financial Risk Management In Restructured Wholesale Power Markets: Concepts And Tools, Nanpeng Yu, Abhishek Somani, Leigh Tesfatsion

Economics Presentations, Posters and Proceedings

The goal of this tutorial is three-fold: to facilitate cross-disciplinary communication among power engineers and economists by explaining and illustrating basic financial risk management concepts relevant for wholesale power markets (WPMs); to illustrate the complicated and risky strategic decision making required of power traders and risk managers operating in multiple interrelated submarkets comprising modern WPMs; and to briefly discuss the potential of agent-based modeling for the study of this decision making.


Resistivity Recovery In Gd5si2.09ge1.91 By Annealing, Ravi L. Hadimani, David C. Jiles 2010 Cardiff University

Resistivity Recovery In Gd5si2.09ge1.91 By Annealing, Ravi L. Hadimani, David C. Jiles

David C. Jiles

Irreversible change in resistivity occurs in Gd5(SixGe1−x)4 (with 0.41


Effect Of Temperature Variation On The Magnetostrictive Properties Of Coalxfe2−Xo4, Ikenna C. Nlebedim, N. Ranvah, Y. Melikhov, P. I. Williams, J. E. Snyder, A. J. Moses, David C. Jiles 2010 Cardiff University

Effect Of Temperature Variation On The Magnetostrictive Properties Of Coalxfe2−Xo4, Ikenna C. Nlebedim, N. Ranvah, Y. Melikhov, P. I. Williams, J. E. Snyder, A. J. Moses, David C. Jiles

David C. Jiles

The effect of temperature variation on the magnetoelasticproperties of the CoAlxFe2−xO4 system (for x=0.0, 0.2, 05, and 0.7) has been studied. Substitution of Al3+ for Fe3+ was found to lower the Curie temperature of the samples and to change the lattice parameter. The magnitude of peak to peak magnetostriction, strain sensitivity, magnetomechanical hysteresis, and relative contributions of λ111 and λ100 to the resultant magnetostriction were found to vary with temperature. The results show the possibility of tailoring the magnetoelasticproperties of highly magnetostrictive cobalt ferrite at temperatures of interest by cation substitution.


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