Smart Textiles Based Wireless ECG System

Advances in polymers, soft-electronics, biosensors and mobile communication, have led to a growing interest in wireless Electrocardiogram (ECG) monitors. A wide variety of textile-based wireless ECG sensors and systems have been developed. Typically, such wireless ECG systems rely on miniature ECG sensor/electrode that can be worn as badges, patches, or jewelry to measure and show advance reactions. Smart textile and non-contact electrodes have also been reported recently. The earlier stage of smart clothing usually tether conventional electrode sensors or devices attached to the textile. Such approaches have their limitations such as discomfort and integration with the fabric. The focus of our research is design and the development of non-contact textiles ECG electrode for remote health monitoring applications

VHDL Implementation of High Performance and Dynamically Configured Multi-port Cache Memory

This project presents the implementation of 64x64 multi-port dynamically configured SRAM in VHDL (VHSIC hardware description language). It employs isolation nodes and dynamic memory partitioning algorithm to facilitate simultaneous multi-port accesses without duplicating bit-lines. VHDL test-bench is developed to verify the functionality of the dynamically configured memory. Results demonstrate that critical memory operations such as "read miss", "write miss" and "write bypass" can be performed using newly proposed low power, area efficient dynamically configured memory

Redesigning Teaching Approaches for Undergraduate Engineering Classrooms

Our research focuses on the redesign of an undergraduate engineering course to implement effective pedagogies of engagement. Inquiry-based learning, coupled with hands-on team projects which simulate real-world problem-based scenarios, promotes the transfer of knowledge for practical problem solving in authentic engineering design problems

Parallel Processing Solutions in Bioinformatics and in Human Genome Research

A poster discussing the use of parallel processing techniques (Hadoop, mapreduce, ect.) in processing genome data

Nanostructured Conformal Antenna for Biomedical Applications

Graphene Nanoribbons (GNRs), a 2-D material mono atomic layer of carbon atoms ordered in a honeycomb structure, have emerged as a potential candidate for next generation electronics. GNRs posse band gaps that are tuned by changing the width of nano ribbons, thus transform semiconductor to semimetal as the width of the ribbon changes. Graphene allows the realization of planar structures. Its excellent conductivity and highest carrier mobility at room temperature make it an ideal candidate for fabrication of nano-scale patch antenna and low power device applications. The principal objective of our research is to develop, model and prototype a nano-structured flexible patch antenna and nano-scale spiral antennas for biomedical applications

A Low Power CMOS Comparator Using Logic Shut-down Technique

© ASEE 2009Low power VLSI has become a very hot area due to the rapid increase in energy cost and wide applications of mobile electronics. Various techniques can be used to reduce the power consumption of VLSI circuits. In this paper, a novel low-power 32-bit comparator using pass transistor and logic shut-down technique is proposed. The comparator will first compare the higher bits of the input patterns. Whenever a decision can be made, the comparison logic for the lower bits will be shut down to save power. The lower bits are compared only when a decision cannot be made from the higher bits. In this way, the unnecessary comparisons are avoided and the power savings can be maximized. Pass transistor logic is also utilized in the comparator design to further reduce the transistor count so that the power consumption can be further reduced compared to CMOS logic. Other comparators are also compared. The schematic design for proposed comparator is designed with PSPSICE. The netlists are extracted and fed to PSPICE for power analysis. An auxiliary power measurement circuitry is introduced to measure the power consumption of the circuits in a smart way. Simulation results show that using pass-transistor and logic shut down techniques can significantly reduce the consumption of the transistor and the power, furthermore, the shrinking signal path are introduced for delay improvement

Effect of Curvature of the Conformal Microstrip Antenna

A comprehensive study of the conformal microstrip printed antenna is presented. The main advantages and drawbacks of a microstrip conformal antenna are discussed. The paper discusses both conformal microstrip arrays. The effect of curvature on the conformal microstrip antenna patch on conical and spherical surfaces is studied. New flexible antenna designs are given for different frequencies . Finally, simulation studies are carried out to study the effect of the curvature on the input impedance, return loss, voltage standing wave ratio, and resonance frequency

A New Analytical Performance Model for a Microstrip Printed Antenna

© ASEE 2012Curvature has a great effect on fringing field of a microstrip antenna and consequently fringing field affects effective dielectric constant and then all antenna parameters. A new mathematical model for input impedance, return loss, voltage standing wave ratio and electric and magnetic fields is introduced in this paper. These parameters are given for TM10 mode and TM01 mode Epsilam-10 ceramic-filled Teflon substrate material

Enhancing Hadoop MapReduce Performance for Scientific Data using NoSQL Database

Scientific data sets usually have similar jobs that are frequently applied to the data by different users. In addition, many of these data sets are unstructured, complex, and required fast and simple processing. In order to increase the performance of the existing Hadoop and MapReduce algorithm, it is necessary to develop an algorithm based on the type of data sets and requirements of the jobs. In this poster, we represent a Hadoop MapReduce environment that uses genomic and biological data as an example of unstructured and complex data

Effect of Curvature on the Performance of Cylindrical Microstrip Printed Antenna for TM01 mode

Curvature has a great effect on fringing field of a microstrip antenna and consequently fringing field affects effective dielectric constant and then all antenna parameters. A new mathematical model for input impedance, return loss, voltage standing wave ratio and electric and magnetic fields is introduced in this paper. These parameters are given for TM01mode and using two different substrate materials RT/duroid-5880 PTFE. Experimental results are also introduced to validate the new model