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2012

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Articles 871 - 900 of 6303

Full-Text Articles in Engineering

Ceg 7900-01: Emerging Networks, Bin Wang Oct 2012

Ceg 7900-01: Emerging Networks, Bin Wang

Computer Science & Engineering Syllabi

This is a graduate level course on emerging networking technologies. The course involves various components, including reading/lecture/presentation/discussion, paper review, and a project. It will provide an in-depth study on a number of focused areas: dense wavelength division multiplexing (DWDM) optical networks, ELASTIC optical networks, optical burst/packet switching networks, peer-to-peer networks, Internet of Things, Cloud Networking, Enterprise Networking and wireless mobile networks (including Ad-hoc wireless networks, cognitive radio networks). Various technical and research issues involved will be studied. These areas of emerging networking technologies will play central roles in future communication networks.


Ceg 3310/5310-01: Computer Organization, Michael L. Raymer Oct 2012

Ceg 3310/5310-01: Computer Organization, Michael L. Raymer

Computer Science & Engineering Syllabi

No abstract provided.


Ceg 7380-01: Cloud Computing, Keke Chen Oct 2012

Ceg 7380-01: Cloud Computing, Keke Chen

Computer Science & Engineering Syllabi

This is an introductory course to cloud computing. In this course, we will explore a few aspects of cloud computing: distributed data crunching with MapReduce, cloud and datacenter file systems, virtualization, cloud security and privacy, Amazon Web Services, Google App Engine and interactive web applications. Students are expected to read extra materials including papers and online resources, finish a number of mini projects, and take the final exam. Participation in the class discussion is strongly encouraged. Guest speakers might be invited for some particular topics.


Cs 1010: Introduction To Computers And Office Productivity Software, Terri Bauer Oct 2012

Cs 1010: Introduction To Computers And Office Productivity Software, Terri Bauer

Computer Science & Engineering Syllabi

Focus on learning MS Office software applications including intermediate word processing, spreadsheets, database and presentation graphics using a case study approach where critical thinking and problem solving skills are required. Computer concepts are integrated throughout the course to provide an understanding of the basics of computing, the latest technological advances and how they are used in industry. Ethics and issues encountered in business are discussed to challenge students on societal impact of technology.


Cs 4810: Algorithms For Bioinformatics, Michael L. Raymer Oct 2012

Cs 4810: Algorithms For Bioinformatics, Michael L. Raymer

Computer Science & Engineering Syllabi

No abstract provided.


The Current State Of Wireless Information Technology Among Employers Of Bowling Green State University Construction Management Students, Aaron Seymour Oct 2012

The Current State Of Wireless Information Technology Among Employers Of Bowling Green State University Construction Management Students, Aaron Seymour

Master of Technology Management Plan II Graduate Projects

Successful implementation of wireless technology in the construction industry has the potential to streamline the building process and improve the service that is delivered to the owners of projects. A need exists for improving access and transfer of digital communication and documentation, regardless of the time or location. Recent developing trends in technology promise to introduce efficiencies that were not previously available within the industry. This study seeks to identify the current state of wireless information technology among employers of Bowling Green State University Construction Management students. The research design analyzed quantitative data from a web-based survey that presented results …


Stem Cell Based Tissue Engineering And Regenerative Medicine: A Review Focusing On Adult Stem Cells, Jordan Greenberg, Veronica R. Fortino, Daniel Pelaez, Herman S. Cheung Oct 2012

Stem Cell Based Tissue Engineering And Regenerative Medicine: A Review Focusing On Adult Stem Cells, Jordan Greenberg, Veronica R. Fortino, Daniel Pelaez, Herman S. Cheung

Biology Faculty Articles

Tissue engineering has emerged as a field that attempts to harness the bodies' own developmental and repair features to treat diseases and illnesses. Many of these illnesses are caused by necrosis or loss of functionality of complete organs or specific cell types. Early discoveries in embryonic stem cells fueled a wave of research that led to claims about possibly regenerating nonfunctioning organs. Although we are still far away from being able to grow functional organs in a Petri dish, the field continues to progress forward, and new clinical trials have been approved for using both embryonic and adult stem cell …


The Bridge Newsletter Winter 2012, Missouri University Of Science And Technology Oct 2012

The Bridge Newsletter Winter 2012, Missouri University Of Science And Technology

The Bridge Newsletter

-Creating bridge beams that will last 100 years
-Great school, great price
-Recruiting technical minds
-Combatting obesity, diabetes


Area Query Processing Based On Gray Code In Wireless Sensor Networks, Chunyu Ai, Yueming Duan, Mingyuan Yan, Jing He Oct 2012

Area Query Processing Based On Gray Code In Wireless Sensor Networks, Chunyu Ai, Yueming Duan, Mingyuan Yan, Jing He

Faculty Articles

Area query processing is significant for various applications of wireless sensor networks since it can request information of particular areas in the monitored environment. Existing query processing techniques cannot solve area queries. Intuitively centralized processing on Base Station can accomplish area queries via collecting information from all sensor nodes. However, this method is not suitable for wireless sensor networks with limited energy since a large amount of energy is wasted for reporting useless data. This motivates us to propose an energy-efficient in-network area query processing scheme. In our scheme, the monitored area is partitioned into grids, and a unique gray …


Biomechanical Evaluation Of An Optical System For Quantitative Human Motion Analysis, Jeffrey D. Kertis Oct 2012

Biomechanical Evaluation Of An Optical System For Quantitative Human Motion Analysis, Jeffrey D. Kertis

Master's Theses (2009 -)

An eight-camera Optitrack motion capture system was evaluated by performing static, linear dynamic, and angular dynamic calibrations using marker distances associated with upper and lower extremity gait and wheelchair models. Data were analyzed to determine accuracy and resolution within a defined capture volume using a standard Cartesian reference system. Two additional cameras along with AMASS and Visual3D (C-Motion, Inc., Germantown, MD) biomechanical modeling software were used to determine joint kinematics at the pelvis, hip, knee, and ankle of ten control subjects (mean age 21.5 ± 1.65 years). The same data were processed through Nexus (Vicon Motion Systems, Oxford, England) modeling …


Modeling And Control Of A Doubly-Fed Induction Generator For Wind Turbine-Generator Systems, Xin Jing Oct 2012

Modeling And Control Of A Doubly-Fed Induction Generator For Wind Turbine-Generator Systems, Xin Jing

Master's Theses (2009 -)

Wind energy plays an increasingly important role in the world because it is friendly to the environment. During the last decades, the concept of a variable-speed wind turbine (WT) has been receiving increasing attention due to the fact that it is more controllable and efficient, and has good power quality. As the demand of controllability of variable speed WTs increases, it is therefore important and necessary to investigate the modeling for wind turbine-generator systems (WTGS) that are capable of accurately simulating the behavior of each component in the WTGS. Therefore, this thesis will provide detailed models of a grid-connected wind …


Biomechanical Model Of Pediatric Upper Extremity Dynamics During Wheelchair Mobility, Alyssa J. Paul Oct 2012

Biomechanical Model Of Pediatric Upper Extremity Dynamics During Wheelchair Mobility, Alyssa J. Paul

Master's Theses (2009 -)

Biomechanical analysis has been used by many to evaluate upper extremity (UE) motion during human movement, including during the use of assistive devices such as crutches and walkers. However, few studies have been conducted to examine the upper extremity kinetics during wheelchair mobility, specifically within the pediatric population. In 2000, 90% of wheelchair users (1.5 million people) in the United States were manual wheelchair users, requiring the use of their upper body to maneuver the wheelchair as well as perform other activities of daily living. Among children under the age of 18, the wheelchair was the most used assistive mobility …


Analysis Of The Detection Of Organophosphate Pesticides In Aqueous Solutions Using Polymer-Coated Sh-Saw Sensor Arrays, Tian Newman Oct 2012

Analysis Of The Detection Of Organophosphate Pesticides In Aqueous Solutions Using Polymer-Coated Sh-Saw Sensor Arrays, Tian Newman

Master's Theses (2009 -)

The shear horizontal surface acoustic wave (SH-SAW) device was investigated as a micro-chemical sensor for the direct, rapid and in-situ monitoring of chemical contaminants in groundwater and wastewater. The chemical contaminants of interest are organo-phosphate-based compounds (parathion, parathion-methyl, and paraoxon). The polymers used as partially chemically selective coatings are 2,2’-diallylbisphenol A - 1,1,3,3,5,5-hexamethyltrisiloxane (BPA-HMTS), and 2,2’-diallylbisphenol A- polydimethylsiloxane (BPA-PDMS), polyepichlorohydrin (PECH). The experimental results indicate that the analyte/polymer interaction is a result of mass loading and viscoelastic changes in the polymer. BPA-HMTS, BPA-PDMS, and PECH have the highest to lowest sensitivity towards parathion, parathion-methyl, and paraoxon respectively. The polymers tested …


Repair And Strengthening Of Bridge Substructures, Steven W. Ainge Oct 2012

Repair And Strengthening Of Bridge Substructures, Steven W. Ainge

Master's Theses (2009 -)

Deterioration of bridge substructures has been a serious concern throughout Wisconsin. Concrete, steel and timber members all require distinct repair methods which not only address the true causes of deterioration, but protect the member from future damage. Utilizing repair techniques that merely address the effect of the deterioration has proven costly and unreliable. Understanding the relationship between cost and service life of modern repair methods can help maintenance engineers make informed decisions that will maximize efficacy. A survey was sent to 90 maintenance engineers throughout the United States to determine the efficacy and cost of common repair methods. Unique repair …


Development And Performance Of A Sparsity-Exploiting Algorithm For Few-View Single Photon Emission Computed Tomogrpahy (Spect) Reconstruction, Paul Arthur Wolf Oct 2012

Development And Performance Of A Sparsity-Exploiting Algorithm For Few-View Single Photon Emission Computed Tomogrpahy (Spect) Reconstruction, Paul Arthur Wolf

Master's Theses (2009 -)

Single Photon Emission Computed Tomography (SPECT) provides noninvasive images of the distribution of radiotracer molecules. Dynamic Single Photon Emission Computed Tomography provides information about tracer uptake and washout from a series of time-sequence images. Stationary ring-like multi-camera systems are being developed to provide rapid dynamic acquisitions with high temporal sampling. Reducing the number of cameras reduces the cost of such systems but also reduces the number of views acquired, limiting the angular sampling of the system. Novel few-view image reconstruction methods may be beneficial and are being investigated for the application of dynamic SPECT. A sparsity-exploiting algorithm intended for few-view …


Investigating A Horizontal Helical Antenna For Use In The Phantom Monopole Configuration, Mattison Lemieux Oct 2012

Investigating A Horizontal Helical Antenna For Use In The Phantom Monopole Configuration, Mattison Lemieux

Master's Theses (2009 -)

Recently, the phantom monopole configuration was successfully simulated using wire loop antennas. The wire loop antennas have an undesirable input impedance, making them difficult to match and implement. A new type of antenna that has a more desirable impedance while still maintaining the same near magnetic field and far field radiation pattern is investigated in this work. The research done focuses on a horizontally placed helical antenna. There is little research done on a horizontally placed helical antenna so several different parameters of this antenna were investigated. A normal mode helical antenna was chosen because of its size and impedance. …


Three-Dimensional Biomechanical Model Of Wrist Dynamics During Tasks Of Daily Living, Patrick Roscher Oct 2012

Three-Dimensional Biomechanical Model Of Wrist Dynamics During Tasks Of Daily Living, Patrick Roscher

Master's Theses (2009 -)

An understanding of wrist dynamics during functional movements is required to better diagnose and treat wrist injury and disease. Currently, there is a lack of upper extremity (UE) models that combine both the motions and resulting forces that occur in the wrist during daily activities. The purpose of this study is to create a three-dimensional (3D) model of the upper extremity that describes kinematics and wrist kinetics during functional activities. A model of this type could benefit clinical diagnosis, treatment, and follow-up care of orthopaedic and neurological disorders of the wrist. The created dynamic wrist model was used to test …


Real Time Control Framework Using Android, Aaron Pittenger Oct 2012

Real Time Control Framework Using Android, Aaron Pittenger

Master's Theses (2009 -)

One potential application for a smartphone-type device is a flight management and control computer for an unmanned aerial vehicle (UAV). The hardware employed in most smartphones and tablets has the capabilities necessary to fly an air vehicle without user interaction. The user can pre-program in a flight plan and the smartphone will do the rest. In the past, this real time control application has been done using many separate sensor packages and processors, but never on a single, stand-alone device. Also, capabilities such as the high definition camera present on most smartphones can take photographs and store them on the …


Powered Transtibial Prosthetic Device Control System Design, Implementation And Testing, Jinming Sun Oct 2012

Powered Transtibial Prosthetic Device Control System Design, Implementation And Testing, Jinming Sun

Master's Theses (2009 -)

A powered lower limb prosthesis, which consists of a four bar mechanism, a torsional spring and a brushed DC motor, was previously designed and fabricated. To regulate the motor power input, a two level controller was proposed and built. The control algorithm includes a higher level finite state controller and lower level PID controllers. To implement the control system, a digital signal processor (DSP) control board and MATLAB Simulink were used to realize the higher level control and a DC motor controller was used to realize the lower level PID control. Sensors were selected to provide the required feedback. The …


Hybrid Coupler Implemented As A Phase Shifter, John P. Vitale Oct 2012

Hybrid Coupler Implemented As A Phase Shifter, John P. Vitale

Master's Theses (2009 -)

Phase shifters are two-port microwave devices which take an input signal and output a phase shifted version of the signal. These devices can be used in phased antenna arrays, frequency translators, and IQ modulator/demodulator systems. The goal for this work is to construct a hybrid coupler phase shifter which will provide a 90 degree phase shift to a signal with a center frequency of 1800 MHz over a 5% bandwidth. This work is novel because the hybrid coupler phase shifter has not been extensively studied. Some papers have provided rough guidelines for constructing these shifters, but there is little exploration …


Stress Corrosion Cracking Susceptibility Of Ultrafine Grained Az31, G. R. Argade, W. Yuan, K. Kandasamy, R. S. Mishra Oct 2012

Stress Corrosion Cracking Susceptibility Of Ultrafine Grained Az31, G. R. Argade, W. Yuan, K. Kandasamy, R. S. Mishra

Materials Science and Engineering Faculty Research & Creative Works

In this study, stress corrosion cracking (SCC) behavior of AZ31 magnesium alloy was carried out using slow strain rate testing (SSRT) technique in 3.5 wt.% NaCl solution. the influence of microstructural scale on the stress corrosion behavior was investigated in AZ31 alloy with three different mean grain sizes. Single-pass and two-pass friction stir processing (FSP) was employed to obtain fine grain and ultrafine grain microstructures, respectively. for FSP, SSRT specimens were extracted from the processed region. SSRTs were carried out in air and solution at an initial strain rate of 10 -6/s. a significant decrease in the ultimate tensile strength …


Design And Comparison Of Immersive Interactive Learning And Instructional Techniques For 3d Virtual Laboratories, Shuo Ren Oct 2012

Design And Comparison Of Immersive Interactive Learning And Instructional Techniques For 3d Virtual Laboratories, Shuo Ren

Computational Modeling & Simulation Engineering Theses & Dissertations

Virtual reality (VR) as a learning environment plays an important role m engineering education. Utilizing the VR learning environment as a supplement to engineering-based laboratories is especially beneficial for students to prepare for the physical experiment and to grasp the experiment objectives and procedures. Such a methodology can also play a significant role in distance education.

This work presents the methodology design for the physical-to-virtual transformation of two undergraduate mechanical engineering laboratory experiments, namely the "Jet Impact Force on Vanes (Jet Force Lab)" and the "Elastic Test of a Beam in Pure Bending (Beam Bending Lab)" at Old Dominion University. …


Modification And Application Of A Turbulence Response Analysis Method For Flexible Aircraft Configurations, Christie Jeanne Funk Oct 2012

Modification And Application Of A Turbulence Response Analysis Method For Flexible Aircraft Configurations, Christie Jeanne Funk

Mechanical & Aerospace Engineering Theses & Dissertations

A software program and associated methodology to study gust loading on aircraft exists for a classification of geometrically simplified flexible configurations. This program consists of a simple aircraft response model with two rigid and three flexible symmetric degrees of freedom and allows for the calculation of various airplane responses due to a discrete one-minus-cosine gust as well as continuous turbulence. Simplifications, assumptions, and opportunities for potential improvements pertaining to the existing software program are first identified, then a revised version of the original software tool is developed with improved methodology to include more complex geometries, additional excitation cases, and output …


Modeling Leakage Currents In Metal Insulator Metal Structures With High K Materials, Priyamvada Maleeswaran Oct 2012

Modeling Leakage Currents In Metal Insulator Metal Structures With High K Materials, Priyamvada Maleeswaran

Electrical & Computer Engineering Theses & Dissertations

Various products such as personal computers, cellular phones and mobile devices require high speed and low power consumption. Such improvements have been attained by minimizing physical dimensions of electronic devices, leading to high density integration of transistors and capacitors on integrated chips (]Cs). However, as a consequence of down-scaling device dimensions, tunneling of electrons through thin gate oxides (SiO2) increases, leading to increased static power leakage. This constitutes wastage in power, and for the case of memory applications necessitates faster refresh cycles. In order to overcome such issues, high-k materials (such as HfO2 and ZrO2) …


Configuration Studies Of Electrostatic And Magnetostatic Active Space Radiation Shielding, Trac K. Nguyen Oct 2012

Configuration Studies Of Electrostatic And Magnetostatic Active Space Radiation Shielding, Trac K. Nguyen

Electrical & Computer Engineering Theses & Dissertations

Developing successful and optimal solutions for mitigating the hazards of radiation in deep space is critical for the success of deep-space long duration explorations, including mission to the Moon, Mars and beyond. A recent report (Tripathi et al., 2008) had explored the feasibility of using electrostatic shielding in conjunction with state-of-the-art materials shielding technologies.

In this thesis research, we study the active electrostatic shielding strategy and examine a hybrid configuration that utilizes both electrostatic and magnetostatic fields. The main advantages of this system are shown to be: (i) much lower magnetic fields that could be below the thresholds set for …


Subnanosecond Exposure Systems For Biological Studies, Jongbong Nah Oct 2012

Subnanosecond Exposure Systems For Biological Studies, Jongbong Nah

Electrical & Computer Engineering Theses & Dissertations

The research of bioelectrics has expanded to subnanosecond pulse region and entered a new domain of biophysics of cell interaction with ultra-short and intense electric fields. As subnanosecond pulses may be delivered by antennas to the human body and is very attractive to the medical community, the study of subnanosecond pulse effects calls for exposure systems for both cells and tissues. Two systems were designed in the scope of this thesis, used for cells and tissues respectively. The exposure system designed for cell exposure is a cuvette consisting of two parallel aluminum gaps. This cuvette is placed in a coaxial …


Functional Integration In The Cortical Neuronal Network Of Conscious And Anesthetized Animals, Jeannette A. Vizuete Oct 2012

Functional Integration In The Cortical Neuronal Network Of Conscious And Anesthetized Animals, Jeannette A. Vizuete

Dissertations (1934 -)

General anesthesia consists of amnesia, analgesia, areflexia and unconsciousness. How anesthetics suppress consciousness has been a mystery for more than one and a half centuries.

The overall goal of my research has been to determine the neural correlates of anesthetic-induced loss of consciousness. I hypothesized that anesthetics induce unconsciousness by interfering with the functional connectivity of neuronal networks of the brain and consequently, reducing the brain's capacity for information processing. To test this hypothesis, I performed experiments in which neuronal spiking activity was measured with chronically implanted microelectrode arrays in the visual cortex of freely-moving rats during wakefulness and at …


Lateral-Mode Vibration Of Microcantilever-Based Sensors In Viscous Fluids Using Timoshenko Beam Theory, Joshua Schultz Oct 2012

Lateral-Mode Vibration Of Microcantilever-Based Sensors In Viscous Fluids Using Timoshenko Beam Theory, Joshua Schultz

Dissertations (1934 -)

Dynamic-mode microcantilever-based devices are well suited to biological and chemical sensing applications. However, these applications often necessitate liquid-phase sensing, introducing significant fluid-induced dissipative forces and reducing device quality factors (Q). Recent experimental and analytical research has shown that higher in- fluidQis achieved by exciting microcantilevers in the lateral flexural mode. However, the experimental results show that, for microcantilevers having larger width-to-length (b/L) ratios, the behaviors predicted by current analytical models differ from measurements.

To more accurately model microcantilever resonant behavior in viscous fluids and to improve understanding of lateral-mode sensor performance, a new analytical model is developed, incorporating both viscous …


2011 Summary Of Highway Revenues, Distributions, & Expenses For Indiana Counties, Cities, & Towns, Indiana Ltap Oct 2012

2011 Summary Of Highway Revenues, Distributions, & Expenses For Indiana Counties, Cities, & Towns, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This report provides information on revenues, distributions, and expenses of state and local governments for highway, road, and street work. Since the Motor Vehicle Highway (MVH) and Local Road and Street (LRS) Accounts are the principal source of funds for local road or street construction and maintenance operations, this summary may be used to see the trends in income sources and in the expenses charged to the funds prior to their being distributed to the highway, road, and street agencies.


2012 (Fall) Ensi Informer Magazine, Morehead State University. Engineering Sciences Department Oct 2012

2012 (Fall) Ensi Informer Magazine, Morehead State University. Engineering Sciences Department

ENSI Informer Magazine Archive

The ENSI Informer Magazine published in the fall of 2012.