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Articles 1 - 7 of 7
Full-Text Articles in Engineering
An Emg-Based Patient Monitoring System Using Zynq Soc Device, Farhad Fallahlalehzari
An Emg-Based Patient Monitoring System Using Zynq Soc Device, Farhad Fallahlalehzari
UNLV Theses, Dissertations, Professional Papers, and Capstones
This thesis describes the design, development, and testing of an EMG-based patient monitoring system using the Zynq device. Zynq is a system on chip device designed by Xilinx which consists of an ARM dual cortex-A9 processor as well as an FPGA integrated into one chip. This work also analyzes the performance of image-processing algorithms on this system and compares that performance to more traditional PC-based systems. Image processing algorithms, such as Sobel edge detection, dilation and erosion, could be used in conjunction with a camera for the patient monitoring purposes. These algorithms often perform sub-optimally on processors because of their …
Vulnerability Analysis And Security Framework For Zigbee Communication In Iot, Charbel Azzi
Vulnerability Analysis And Security Framework For Zigbee Communication In Iot, Charbel Azzi
UNLV Theses, Dissertations, Professional Papers, and Capstones
Securing IoT (Internet of Things) systems in general, regardless of the communication technology used, has been the concern of many researchers and private companies. As for ZigBee security concerns, much research and many experiments have been conducted to better predict the nature of potential security threats. In this research we are addressing several ZigBee vulnerabilities by performing first hand experiments and attack simulations on ZigBee protocol. This will allow us to better understand the security issues surveyed and find ways to mitigate them. Based on the attack simulations performed and the survey conducted, we have developed a ZigBee IoT framework …
Design And Implementation Of Benes/Clos On-Chip Interconnection Networks, Yikun Jiang
Design And Implementation Of Benes/Clos On-Chip Interconnection Networks, Yikun Jiang
UNLV Theses, Dissertations, Professional Papers, and Capstones
Networks-on-Chip (NoCs) have emerged as the key on-chip communication architecture for multiprocessor systems-on-chip and chip multiprocessors. Single-hop non-blocking networks have the advantage of providing uniform latency and throughput, which is important for cachecoherent NoC systems. Existing work shows that Benes networks have much lower transistor count and smaller circuit area but longer delay than crossbars. To reduce the delay, we propose to design the Clos network built with larger size switches. Using less than half number of stages than the Benes network, the Clos network with 4x4 switches can significantly reduce the delay. This dissertation focuses on designing high performance …
Design, Fabrication And Testing Of Monolithic Low-Power Passive Sigma-Delta Analog-To-Digital Converters, Angsuman Roy
Design, Fabrication And Testing Of Monolithic Low-Power Passive Sigma-Delta Analog-To-Digital Converters, Angsuman Roy
UNLV Theses, Dissertations, Professional Papers, and Capstones
Analog-to-digital converters are critically important in electronic systems. The
difficulty in meeting high performance parameters increases as integrated circuit design
process technologies advance into the deep nanometer region. Sigma-delta analog-todigital
converters are an attractive option to fulfill many data converter requirements.
These data converters offer high performance while relaxing requirements on the precision
of components within an integrated circuit. Despite this, the active integrators found within
sigma-delta analog-to-digital converters present two main challenges. These challenges are
the power consumption of the active amplifier and achieving gain-bandwidth necessary for
sigma-delta data converters in deep nanometer process technologies. Both of these
challenges …
Synthesis And Characterization Of Graphene, Ashok Em Sudhakar
Synthesis And Characterization Of Graphene, Ashok Em Sudhakar
UNLV Theses, Dissertations, Professional Papers, and Capstones
Graphene is an important nanoscale material with unique electronic and optical properties. Due to its many potential applications, grapheme was the subject of a Nobel Prize in physics 2010; Andre Geim and Kostya Novoselov of Manchester University received the Nobel Prize for demonstrating the ability to create single atom thick graphene layers from bulk graphite. Since then, many alternative synthesis techniques and device applications of graphene have been explored. An important and unique property of graphene is its excellent thermal properties. Graphene has a two dimensional structure and the thermal properties are significantly different than three dimensional bulk materials. Using …
Efficient Algorithms For Clustering Polygonal Obstacles, Sabbir Kumar Manandhar
Efficient Algorithms For Clustering Polygonal Obstacles, Sabbir Kumar Manandhar
UNLV Theses, Dissertations, Professional Papers, and Capstones
Clustering a set of points in Euclidean space is a well-known problem having applications in pattern recognition, document image analysis, big-data analytics, and robotics. While there are a lot of research publications for clustering point objects, only a few articles have been reported for clustering a given distribution of obstacles. In this thesis we examine the development of efficient algorithms for clustering a given set of convex obstacles in the 2D plane. One of the methods presented in this work uses a Voronoi diagram to extract obstacle clusters. We also consider the implementation issues of point/obstacle clustering algorithms.
Mcnp6 Computational-Based Sensitivity Propagation Analysis Of Continuous Neutron Cross-Sections Using The Godiva (Hmf-001) And The Godiver (Hmf-004) Benchmark Criticality Study Cases, Lawrence James Lakeotes
Mcnp6 Computational-Based Sensitivity Propagation Analysis Of Continuous Neutron Cross-Sections Using The Godiva (Hmf-001) And The Godiver (Hmf-004) Benchmark Criticality Study Cases, Lawrence James Lakeotes
UNLV Theses, Dissertations, Professional Papers, and Capstones
There has been a reduction in funding for theoretical and applied research for improving the nation's database of continuous neutron cross-sections at BNL-NNDC. From 1940 through the late 1980s, research and applied development produced volumes of reliable neutron continuous cross-sections for many isotopes. Currently, the cross-section work has been mainly computational. The focus of this research is mainly centered on the requirements for improving thermal cross-sections to support reactor operations and fuel storage. The research efforts will also helpfully aid in the fast fission spectrum in order to support fast reactor designs for improving safety analysis and feedback coefficients.
This …