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Articles 1 - 15 of 15
Full-Text Articles in Computer Engineering
Strategies For Sensor Data Aggregation In Support Of Emergency Response, X. Wang, A. Walden, M. Weigle, S. Olariu
Strategies For Sensor Data Aggregation In Support Of Emergency Response, X. Wang, A. Walden, M. Weigle, S. Olariu
Computer Science Presentations
PDF of a powerpoint presentation from the Military Communications Conference (MILCOM), Baltimore, Maryland, October 7, 2014. Also available on Slideshare.
Discretized Agent-Based Model Of Infectious Disease Spread That Uses Contact Probability, Tyrell L. Gardner
Discretized Agent-Based Model Of Infectious Disease Spread That Uses Contact Probability, Tyrell L. Gardner
Computational Modeling & Simulation Engineering Theses & Dissertations
This study uses contact probability in an agent-based model to simulate the spread of an infectious disease. In order to perform the study, the agent-based model must first be discretized into events. Each agent in the model is given its own infectious disease state machine taken from the Susceptible-Exposed-Infected-Recovered (SEIR) model. The agents move between squares in a grid environment where each square represents a group. Groups have a contact probability as an attribute that is used to predict whether an agent comes in close contact with another agent. The transitions between the states in the SEIR model are easily …
Idpal – A Partially-Adiabatic Energy-Efficient Logic Family: Theory And Applications To Secure Computing, Mihail T. Cutitaru
Idpal – A Partially-Adiabatic Energy-Efficient Logic Family: Theory And Applications To Secure Computing, Mihail T. Cutitaru
Electrical & Computer Engineering Theses & Dissertations
Low-power circuits and issues associated with them have gained a significant amount of attention in recent years due to the boom in portable electronic devices. Historically, low-power operation relied heavily on technology scaling and reduced operating voltage, however this trend has been slowing down recently due to the increased power density on chips. This dissertation introduces a new very-low power partially-adiabatic logic family called Input-Decoupled Partially-Adiabatic Logic (IDPAL) with applications in low-power circuits. Experimental results show that IDPAL reduces energy usage by 79% compared to equivalent CMOS implementations and by 25% when compared to the best adiabatic implementation. Experiments ranging …
Empirical Modeling Of Asynchronous Scalp Recorded And Intracranial Eeg Potentials, Komalpreet Kaur
Empirical Modeling Of Asynchronous Scalp Recorded And Intracranial Eeg Potentials, Komalpreet Kaur
Electrical & Computer Engineering Theses & Dissertations
A Brain-Computer Interface (BCI) is a system that allows people with severe neuromuscular disorders to communicate and control devices using their brain signals. BCIs based on scalp-recorded electroencephalography (s-EEG) have recently been demonstrated to provide a practical, long-term communication channel to severely disabled users. These BCIs use time-domain s-EEG features based on the P300 event-related potential to convey the user's intent. The performance of s-EEG-based BCIs has generally stagnated in recent years, and high day-to-day performance variability exists for some disabled users. Recently intracranial EEG (i-EEG), which is recorded from the cortical surface or the hippocampus, has been successfully used …
A Framework For Web Object Self-Preservation, Charles L. Cartledge
A Framework For Web Object Self-Preservation, Charles L. Cartledge
Computer Science Theses & Dissertations
We propose and develop a framework based on emergent behavior principles for the long-term preservation of digital data using the web infrastructure. We present the development of the framework called unsupervised small-world (USW) which is at the nexus of emergent behavior, graph theory, and digital preservation. The USW algorithm creates graph based structures on the Web used for preservation of web objects (WOs). Emergent behavior activities, based on Craig Reynolds’ “boids” concept, are used to preserve WOs without the need for a central archiving authority. Graph theory is extended by developing an algorithm that incrementally creates small-world graphs. Graph theory …
High Dimensional Data Set Analysis Using A Large-Scale Manifold Learning Approach, Loc Tran
High Dimensional Data Set Analysis Using A Large-Scale Manifold Learning Approach, Loc Tran
Electrical & Computer Engineering Theses & Dissertations
Because of technological advances, a trend occurs for data sets increasing in size and dimensionality. Processing these large scale data sets is challenging for conventional computers due to computational limitations. A framework for nonlinear dimensionality reduction on large databases is presented that alleviates the issue of large data sets through sampling, graph construction, manifold learning, and embedding. Neighborhood selection is a key step in this framework and a potential area of improvement. The standard approach to neighborhood selection is setting a fixed neighborhood. This could be a fixed number of neighbors or a fixed neighborhood size. Each of these has …
Transparent Spectrum Co-Access In Cognitive Radio Networks, Jonathan Daniel Backens
Transparent Spectrum Co-Access In Cognitive Radio Networks, Jonathan Daniel Backens
Electrical & Computer Engineering Theses & Dissertations
The licensed wireless spectrum is currently under-utilized by as much as 85%. Cognitive radio networks have been proposed to employ dynamic spectrum access to share this under-utilized spectrum between licensed primary user transmissions and unlicensed secondary user transmissions. Current secondary user opportunistic spectrum access methods, however, remain limited in their ability to provide enough incentive to convince primary users to share the licensed spectrum, and they rely on primary user absence to guarantee secondary user performance. These challenges are addressed by developing a Dynamic Spectrum Co-Access Architecture (DSCA) that allows secondary user transmissions to co-access transparently and concurrently with primary …
Web Archive Services Framework For Tighter Integration Between The Past And Present Web, Ahmed Alsum
Web Archive Services Framework For Tighter Integration Between The Past And Present Web, Ahmed Alsum
Computer Science Theses & Dissertations
Web archives have contained the cultural history of the web for many years, but they still have a limited capability for access. Most of the web archiving research has focused on crawling and preservation activities, with little focus on the delivery methods. The current access methods are tightly coupled with web archive infrastructure, hard to replicate or integrate with other web archives, and do not cover all the users' needs. In this dissertation, we focus on the access methods for archived web data to enable users, third-party developers, researchers, and others to gain knowledge from the web archives. We build …
Improving C2 Effectiveness Based On Robust Connectivity, S. Deller, A. Tolk, G. Rabadi, S. Bowling
Improving C2 Effectiveness Based On Robust Connectivity, S. Deller, A. Tolk, G. Rabadi, S. Bowling
Computational Modeling & Simulation Engineering Faculty Publications
This chapter describes an approach to develop an improved metric for network effectiveness through the use of Cares' (2005) Information Age Combat Model (IACM) as a context for combat (or competition) between networked forces. The IACM highlights the inadequacy of commonly used quantifiable metrics with regards to comparing networks that differ only by the placement of a few links. An agent-based simulation is used to investigate the potential value of the Perron-Frobenius Eigenvalue (λPFE) as an indicator of network effectiveness. The results validate this assumption. Another measurement is proven to be equally important, namely the robustness of a …
Implementing Mechatronics Design Methodology In Mechanical Engineering Technology Senior Design Projects At The Old Dominion University, Vukica M. Jovanovic, Jennifer G. Michaeli, Otilia Popescu, Moustafa R. Moustafa, Mileta Tomovic, Alok K. Verma, Cheng Y. Lin
Implementing Mechatronics Design Methodology In Mechanical Engineering Technology Senior Design Projects At The Old Dominion University, Vukica M. Jovanovic, Jennifer G. Michaeli, Otilia Popescu, Moustafa R. Moustafa, Mileta Tomovic, Alok K. Verma, Cheng Y. Lin
Engineering Technology Faculty Publications
In recent years, the nature of engineering design has changed due to advances in embedded system design and computer technologies. It is rare to engineer a purely mechanical design that does not incorporate electrical and electronic components. Mechanical engineers and mechanical engineering technologists must possess a multi-disciplinary knowledge with the understanding of both mechanical and electrical systems. For this purpose, undergraduate programs in engineering technology have added mechatronics courses to their curriculum. Mechatronics is a design process that is multi-disciplinary in nature and integrates principles of many engineering disciplines including, but not limited to, mechanical engineering, electrical engineering, and controls …
Dissemination Of Microprocessor Courses Through Classroom And Interactive Cyber-Enabled Technologies, Steve C. Hsiung, John M. Ritz, Ece Yaprak, Thomas B. Stout, Richard L. Jones
Dissemination Of Microprocessor Courses Through Classroom And Interactive Cyber-Enabled Technologies, Steve C. Hsiung, John M. Ritz, Ece Yaprak, Thomas B. Stout, Richard L. Jones
Engineering Technology Faculty Publications
The project is in the middle stages of the implementation. There seems to be a positive attitude of learning and using of the training system and curriculum package by all project staffs. Microchip, Inc. and microEngineering Labs, Inc. have donated supplies to support the hardware and software development for this project. The next objectives are team training, recruitment of interested trainees/teachers to participate in training for summers 2014, and assess the effectiveness of the implementations with teachers and students. Photo 2 is the project logo that describes all the concepts of this project.
Delivery Of Hands-On Technical Courses Through Real-Time Distance Learning, Steve C. Hsiung, John M. Ritz, Ece Yaprak, Feng Jao
Delivery Of Hands-On Technical Courses Through Real-Time Distance Learning, Steve C. Hsiung, John M. Ritz, Ece Yaprak, Feng Jao
Engineering Technology Faculty Publications
It is generally believed that it is too challenging to deliver technical laboratory courses using distance learning technologies. The focus of this research was to develop strategies that may be used to address these challenges. A research team composed of faculty from several universities and community colleges explored what might be needed to make these types of technical laboratory course instruction possible using distance learning technologies. The team explored delivering a microcontroller embedded systems design course through audio-visual distance learning technologies. The team's research and development activities are discussed. These include focuses on the technical training equipment that had to …
Hands-On Homework Or Laboratory Development For Distance Learning Students In Programmable Logical Controller (Plc), Cheng Y. Lin, Yuzhong Shen, Mileta Tomovic
Hands-On Homework Or Laboratory Development For Distance Learning Students In Programmable Logical Controller (Plc), Cheng Y. Lin, Yuzhong Shen, Mileta Tomovic
Engineering Technology Faculty Publications
When teaching PLC classes in the distance-education (DE) program, one of the main problems is to provide hands-on experience to students. This is because students can only use design software to complete their homework and lab problems without being able to touch PLCs or wire ladder logic diagrams. In this paper, the authors develop a virtual laboratory to help DE students gain hands-on wiring experience in the automation control classes. The development significantly shortens the gap on the issue of hands-on experience between on-campus students and DE students. To increase the performance of safety and effectiveness, on-campus students can also …
A Collaborated Process With A Wireless Autonomous Vehicle At It's Center, Thomas B. Stout, Steve C. Hsiung
A Collaborated Process With A Wireless Autonomous Vehicle At It's Center, Thomas B. Stout, Steve C. Hsiung
Engineering Technology Faculty Publications
Developing partnerships between high schools, community colleges and universities is critical for the successful transitions to a lifelong STEM careers. How do you develop these partnerships? The sharing of a technology platform such as autonomous vehicles can bridge the gap by using a common core group of materials. Collaborations between teachers and faculty indifferent schools that share common interests in teaching control systems and robotics technology can be an excellent start. The university as catalyst in the process by designing the curriculum, system hardware and software then through the common interest deploying them in the high schools and community college. …
Review Of Development Stages In The Conceptual Design Of An Electro Hydrostatic Actuator For Robotics, Velibor Karanović, Mitar Jocanović, Vukica Jovanović
Review Of Development Stages In The Conceptual Design Of An Electro Hydrostatic Actuator For Robotics, Velibor Karanović, Mitar Jocanović, Vukica Jovanović
Engineering Technology Faculty Publications
The design of modern robotic devices faces numerous requirements and limitations which are related to optimization and robustness. Consequently, these stringent requirements have caused improvements in many engineering areas and lead to development of new optimization methods which better handle new complex products designed for application in industrial robots. One of the newly developed methods used in industrial robotics is the concept of a self-contained power device, an Electro-Hydrostatic Actuator (EHA). EHA devices were designed with a central idea, to avoid the possible drawbacks which were present in other types of actuators that are currently used in robotic systems. This …