Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 26 of 26
Full-Text Articles in Engineering
Resonance Frequency Bifurcation Based Passive Wireless Sensor Interface Design For Multi-Parameters And Differentially Monitoring, Xinlei Yang
All ETDs from UAB
Many wireless and passive sensors are developed and used in various fields with the growth of Internet-of-Things, IoT, and biomedical technologies. These sensors can measure physical parameters such as temperature, pressure, displacement, etc. These parameters can be converted into corresponding changes in resistance, capacitance, and inductance, and captured by LC tank-based sensors, wirelessly. The passive LC tank-based sensors can only measure a single parameter. By proposing a new technology, multi-resonance sensing mechanism, for measuring multiple parameters differentially in this work. Based on the proposed technology, two sensing systems have been designed and implemented. 1) Estimating human walking gait speed by …
Framework For Validation Of Different Media Types Using A Model Based On Consensus, Adilahmed Patel
Framework For Validation Of Different Media Types Using A Model Based On Consensus, Adilahmed Patel
All ETDs from UAB
Increasingly people of all ages consume news and entertainment through electronic media and social media [1]. As the internet in general and social media in particular are a recent phenomenon, the laws governing them and the technologies to monitor them are still evolving. There is a general consensus on the ubiquity and power of these media, hence the worry of how to handle these media. In this context, validating the online content becomes of paramount importance. Fighting fake content is not only relevant to news and current affairs but is very useful in other areas like technical content, legal content …
The Efficacy Of Weakly Supervised Learning For Biomedical Imaging, Solomon Lee Hatcher
The Efficacy Of Weakly Supervised Learning For Biomedical Imaging, Solomon Lee Hatcher
All ETDs from UAB
This paper aims to investigate the use of unsupervised saliency proposals in extracting suitable prior information from computed tomography scans of the head using image-level labels. The weak supervision learning method obtains useful information about an object’s location and fuses this result with an unsupervised saliency proposal to propagate labels to all related pixels. However, it is shown that unsupervised saliency guidance fails to supply the synthetic annotations with enough coherence to produce suitable segmentation.
The Real-Time Extractiion Of Neural Spikes For Brain-Machine Interface Application Using Deep Learning Algorithm, Sahaj Anilbhai Patel
The Real-Time Extractiion Of Neural Spikes For Brain-Machine Interface Application Using Deep Learning Algorithm, Sahaj Anilbhai Patel
All ETDs from UAB
The detection of neural spikes in real-time and accurately has become the center of interest for the researchers in the field of brain-machine/computer interface (BMI/BCI). The primary challenge in the Brain-Machine interface is to translate raw neuronal response signals into the control of electrical actuators. Only accurate and rapid classification of neural response can help efficiently and conveniently to disable peoples, particularly those suffering from spinal cord injury, stocks, etc., Recording from neurons and analyzing them with many different methods are not new. However, the primary challenge here is the real-time recording and classifying the spikes with higher accuracy. In …
Low-Cost Smart Adaptation Of Acoustic For Blood Clot Monitoring System, Hanzhi Teng
Low-Cost Smart Adaptation Of Acoustic For Blood Clot Monitoring System, Hanzhi Teng
All ETDs from UAB
The patented vascular access is critical for successful hemodialysis. Patients with renal failure undergoing dialysis have increased the risk of acute arteriovenous fistula (AVF) and graft (AVG) thrombosis, placing them with severe morbidity, mortality, and financial burden. In most cases, dialysis vascular access thrombosis leading to non-functional AVG/AVF occurs in a non-health environment and is usually not detected until the patient is seen at the next dialysis appointment. This leads to the loss of opportunities for early identification and timely intervention. Studies have shown that, the results of treatment are poor in patients who have undergone thrombectomy after coagulation, and …
Design And Development Of An Affordable Telemetry System For Navigation Of Autonomous Vehicle, An Liu
Design And Development Of An Affordable Telemetry System For Navigation Of Autonomous Vehicle, An Liu
All ETDs from UAB
Nearly 1.3 million people die in road crashes each year, which is on average 3,287 deaths a day. An addition to the death toll, another 20-50 million are injured or disabled [1]. These are the huge deal of damage to the human’s body. Therefore, in this thesis, we implement autonomous navigation and find the safe path for travel, in which the vehicle can find the most feasible path and drive along this path independently. In order to gain insight and have an opportunity to investigate further on autonomous vehicles field, we define the aim of this project to design, develop, …
Smart Home Automation Using Face Recognition For Personalization And Micro-Controller For Interfacing With Devices, Mohsine Taarji
Smart Home Automation Using Face Recognition For Personalization And Micro-Controller For Interfacing With Devices, Mohsine Taarji
All ETDs from UAB
Face recognition is the use of technology to recognize specific facial features using camera hardware and detection software. Face recognition has been used in many fields, both industrial and personal for such tasks as security and controlling home appliances. We define a smart home as a living space that can be equipped with wireless control systems and devices, for instance, uses radio frequency or infrared communication, to automate or simplify the operation of devices. In this Thesis, we investigate the development of a system that controls appliances around the house based on particular individuals using face recognition. The system will …
Augmented Framework For Generating Domain-Specific Mobile Applications, Rama Krishna Raju Rudraraju
Augmented Framework For Generating Domain-Specific Mobile Applications, Rama Krishna Raju Rudraraju
All ETDs from UAB
In this research, we developed a new approach called Augmented Framework to mean the integration of existing frameworks with domain-specific knowledge. The resulting framework provides a productive development environment suitable for app-developers to generate customized mobile-applications in the domain chosen by the framework developer. This process requires the application developer to provide specifications about the domain for customizing the generated mobile-applications. With this approach, the entire process of developing a mobile-application becomes simplified since it will only need minimum design and development effort. The approach for developing an Augmented Framework consists of three stages. The first stage consists of the …
A Self-Powered Foot Mapping Trail Using Piezoelectric Effect, Shardul Harish Modi
A Self-Powered Foot Mapping Trail Using Piezoelectric Effect, Shardul Harish Modi
All ETDs from UAB
Piezoelectric sensors are made from piezo crystals. Some of these crystals are natural, some are synthetic. These crystals are made of quartz, topaz, Rochelle salt and lead titanate. Piezoelectric sensors run on an effect named as piezoelectric effect which occurs in sensor. When a piezoelectric material is placed exposed to mechanical stress, a shifting of the positive and negative charge centers in the material takes place, which then results in an external electrical field. The piezoelectric effect is very useful within many applications that involve the production and detection of sound, generation of high voltages, electronic frequency generation. In the …
Object Detection And Path Detection System For Autonomous Terrain Vehicles, Avinash Kumar Singh
Object Detection And Path Detection System For Autonomous Terrain Vehicles, Avinash Kumar Singh
All ETDs from UAB
Every year’s thousands of people died in road accidents worldwide. The autonomous vehicles provide a better solution for this kind of situations. The autonomous vehicles move freely in an outer environment and perform different types of tasks according to the condition. The moving object detection in real time and perform the action are always considering important part in autonomous vehicles. To demonstrate the concept of the autonomous vehicle, we design an autonomous all-terrain vehicle model. In this thesis, we used the two types of distance measurement sensors i.e. Ultrasonic and Sharp Infrared sensors. These sensors are connected to the Arduino …
Constant Pv Output By Using Dual Converters For Dc Application, Abdullah Masoud Alghamdi
Constant Pv Output By Using Dual Converters For Dc Application, Abdullah Masoud Alghamdi
All ETDs from UAB
The energy from solar panels can be improved to extract more power by using DC-DC converters operating in continuous mode. DC-DC converters which generate fixed DC voltage were selected to observe the photovoltaic operation at maximum power point (MPP). In this thesis, a boost converter and a buck converter are cascaded to step-up then step down voltage from a photovoltaic (PV) array with changeable voltage, irradiance, and temperature, to a 24 V DC. The filtering parameters of the converter were computed and the means which is used as a switch is a metal oxide semiconductor field effect transistor (MOSFET) with …
A Framework For Social Network Sentiment Analysis Using Big Data Analytics, Bharat Sri Harsha Karpurapu
A Framework For Social Network Sentiment Analysis Using Big Data Analytics, Bharat Sri Harsha Karpurapu
All ETDs from UAB
The primary research of this thesis focused on the development of a Big Data framework for performing sentiment analysis on social networking sites. Over the last decade, social media has been gaining lots of popularity for sharing thoughts and feelings with a user base of over two billion users. Social networking sites such as Twitter, Facebook, and Instagram are increasingly becoming huge repositories of thoughts and opinions on a wide variety of topics. Several public and private organizations, such as Government and companies are attempting to exploit the expressed preferences, opinions, and attitudes regarding politics, commercial products and other matters …
Fpga Implementation And Study Of Hardware Trojan In A Closed Loop Control System, Ranveer Kumar
Fpga Implementation And Study Of Hardware Trojan In A Closed Loop Control System, Ranveer Kumar
All ETDs from UAB
A closed-loop system is a primary technology used to automate our critical infrastructure and major industries to improve their efficiency. Their dependability is challenged by probable vulnerabilities in the core computing system. These vulnerabilities can appear on both front (software) and back (hardware) ends of the computing system. While the software vulnerabilities are well researched and documented, the hardware ones are normally overlooked. However, with hardware-inclusive technological evolutions like Cyber-Physical Systems and Internet-of-Things, hardware vulnerabilities should be addressed appropriately. In this work, we present a study of one such vulnerability, called hardware Trojan (HT), on a closed-loop control system. Since …
Extrema Based Signal Transforms For Biomedical Signal Analysis, Bhadhan Roy Joy
Extrema Based Signal Transforms For Biomedical Signal Analysis, Bhadhan Roy Joy
All ETDs from UAB
Signal transforms are very important tools to extract useful information from scientific, engineering, or medical raw data. Unfortunately, traditional transform techniques impose unrealistic assumptions on the signal, often producing erroneous interpretation of results. Well-known integral transforms, such as short time Fourier transform, though have fast implementation algorithms (e.g., FFT), are still computationally expensive. They have multiple parameters that should be tuned, and it is not readily clear how to tune them for long-duration nonstationary signals. To solve these problems, one needs a computationally inexpensive transform with no parameters that will highlight important data aspects. We propose a simple transform based …
Automated Processing Of Continuous Glucose Monitor (Cgm) Data To Study Onset Of Diabetes, Aman Khatri
Automated Processing Of Continuous Glucose Monitor (Cgm) Data To Study Onset Of Diabetes, Aman Khatri
All ETDs from UAB
Diabetes is a long term condition that causes high levels of blood glucose, and it is necessary to get a complete picture of glucose levels which can lead to better treatment decision and better glucose control. The advent of Continuous Glucose Monitoring (CGM) is helping researches to track the blood glucose levels continuously and to understand the effects of impaired glucose levels on human body which in turn can lead to better treatment of diabetes. Current CGM systems process enormous amounts of data and have limitations in regards to data accuracy, precision, and reliability of raw glucose data. The inaccuracy …
Design Of Ultra-Wideband Antennas With Signal Rejection Characteristics For Biomedical Applications, Laxmi Ray
Design Of Ultra-Wideband Antennas With Signal Rejection Characteristics For Biomedical Applications, Laxmi Ray
All ETDs from UAB
The allocation of the 3.1-10.6 GHz spectrum by the Federal Communications Commission (FCC) for Ultra Wideband (UWB) radio applications has presented many exciting opportunities and challenges for the researchers in academia and industry for the exploitation of several novel antenna design suitable for UWB communication. The successful transmission and reception of short pulses used for UWB communication that occupies the entire 3.1-10.6 GHz spectrum require an antenna with characteristics like linear phase, low dispersion and VSWR ≤ 2 throughout the entire band. Linear phase and low dispersion are marked by low values of group delay and is imperative for transmitting …
Design Space Decomposition Using Concept Maps, David E. Robbins
Design Space Decomposition Using Concept Maps, David E. Robbins
All ETDs from UAB
Decomposition of engineering design spaces has been performed primarily through statistical and system identification techniques. However, no approach has yet attempted to capture the semantics of a design through decomposition. This thesis presents graphical techniques for capturing the semantics of a design by developing an information architecture through design space decomposition using concept maps. In particular, concept maps are used to begin identifying the top layers of the information architecture of a problem, which has the dual effects of performing an initial decomposition of the design space and refining the parameters that will define more detailed design spaces for further …
Ethernet Controller Design For An Embedded System Using Advanced Fpga Technology, Eddie L. Groom
Ethernet Controller Design For An Embedded System Using Advanced Fpga Technology, Eddie L. Groom
All ETDs from UAB
In this work, an embedded Ethernet controller platform was implemented using reconfigurable hardware technology that incorporates system-level components. The specialized hardware and software work flows necessary to implement an embedded system using highly integrated electronics are not commonly addressed in academic environments. The primary objective of this work was to fill this void by describing and demonstrating the hardware/software co-design processes used to implement the project’s embedded Ethernet controller. Ethernet was selected as the project’s design focus to provide an example of the processes used to integrate common system-level components into an embedded system. To analyze the performance of this …
The Use Of Modeling Tools In The Analysis Of Functional Requirements, Gopi Kamadia
The Use Of Modeling Tools In The Analysis Of Functional Requirements, Gopi Kamadia
All ETDs from UAB
The thesis offers an Object-Oriented analysis methodology to investigate the functional requirements of software systems with modeling technologies, such as Unified Modeling Language (UML) and Systems Modeling Language (SysML). The main focus of the analysis is to discover objects and describe them in the problem domain. The thesis also proposes a validation process for the requirements stage of the development life cycle with an Acclaro Design For Six Sigma (DFSS) approach. A software development experiment is carried out with a case study of a threedimensional graphics game. The game is first implemented without following any sound analysis process and then …
Design Of A Service-Oriented Dashboard, Gayathri Sundar
Design Of A Service-Oriented Dashboard, Gayathri Sundar
All ETDs from UAB
Service-Oriented Enterprises are currently focused on offering enhanced user experiences to customers, employees, and enterprise partners who use the enterprise’s software applications. A better user experience is delivered through the presentation of services and business processes to the user in a composite manner, and by facilitating a better user-application interaction for the user. Our experience with the bioinformatics domain helped us to see that although existing models of enterprise portals offer an integrated environment to present applications and enterprise resources, they are not sufficient to address certain complex user-application interactions. In this thesis, we present a design for a Service-Oriented …
Investigation Of Routing Protocols In A Sensor Network, Ramesh Praveenkumar
Investigation Of Routing Protocols In A Sensor Network, Ramesh Praveenkumar
All ETDs from UAB
The objective of this thesis is to model the communication and computation resources of the sensor netork, develop a framework for lifetime estimation and performance evluation of the network, and explore routing schemes so as to extend the functional lifetime of both the individual nodes and the entire network. The sensor network is severly constrained by limited resources, so, energy efficiency is the most important factor in designing the network. Designing an efficient routing protocol in a sensor network is challenging due to various factors, such as limited resources, concentration of load to a limited portion of the network, and …
Cross Chip Probe Matching Tool: A Tool For Linking Probes From Microarrays Within And Across Species, Ruchi Ghanekar
Cross Chip Probe Matching Tool: A Tool For Linking Probes From Microarrays Within And Across Species, Ruchi Ghanekar
All ETDs from UAB
raditionally, but not exclusively, a microarray experiment is conducted on a single type of microarray. However, different labs often use different chip types, and new versions of chips may be developed. Comparing experiments can be problematic in such cases, as it is not always clear which probe sets correspond to the same gene across experiments. The goal of this research was to develop a tool that allows investigators to identify probe sets that correspond to the gene within and across species. The Cross Chip Probe Matching Tool (CCPMT) makes use of the probe sequences for all features on arrays from …
Multimodality Image Registration, Persis Prasai
Multimodality Image Registration, Persis Prasai
All ETDs from UAB
Image registration has been a major area of research in the last few decades. It is a complex problem that involves handling large data sets. The relation between the real object and the image is very intricate and encompasses the object’s shape, surface properties, position, and illumination. In this thesis, a general solution to this problem was devised that can be applied to multimodality and within-modality image registration. The approach followed here is such that various factors such as illumination do not affect the algorithm. The algorithm considers the intensity of the images as raw data for the registration. The …
A Framework For Improving Tractability In Software Development, Sambit Patnaik
A Framework For Improving Tractability In Software Development, Sambit Patnaik
All ETDs from UAB
Present software development methodologies suffer from a common disadvantage that they do not allow seamlessly mapping the final implementations to the originating requirements. Most of the advances made in this area have been in the form of policy rather than processes and framework which support that kind of tractability. New software environments constituting component-based software promise to change the present picture. Web services and semantic web are upcoming technologies. Their popular use in the software industry is inevitable, dependent only upon how fast they mature into reliable technologies. Web services evolved from component software technology which is based upon the …
Design Of Randomly Placed Microphone Array, Srichandana Jasti
Design Of Randomly Placed Microphone Array, Srichandana Jasti
All ETDs from UAB
Microphone arrays can be employed in noise and vibration analysis to detect and analyze changes in noise sources. One weakness of microphone arrays is the presence of artifacts (ghost sounds not present in the true signal) caused by the array geometry. Previous researchers have attempted to move the microphones around their original array positions (moving over a small amount from the current position) to distinguish the presence of true noise sources from artifacts. While these methods have shown promise, the original authors have hypothesized that the best method would be to randomly move the microphones around their respective positions. This …
Network And Data Security, Chintan Dalwadi
Network And Data Security, Chintan Dalwadi
All ETDs from UAB
With a growing number of users getting connected to the Internet and given their growing reliance on computers, it has become increasingly important to protect the confidential information stored locally or on the Internet. There are people who greatly under estimate the threats posed in the world of information technology and believe that their identities and information are safe, and of those people who are actually concerned about security, most are unaware of the areas where they can be targeted. It is not surprising that there are very few areas in information technology that have not been compromised. It is …