Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Department of Computer Science and Engineering (21)
- Department of Electrical Engineering (19)
- Department of Mechanical and Materials Engineering (17)
- Ph.D. in Engineering (14)
- Biomedical Sciences (11)
-
- Department of Biomedical, Industrial & Human Factors Engineering (10)
- Additive Manufacturing (4)
- Control (3)
- Optical Imaging (3)
- Optimization (3)
- Radar (3)
- Semantic Web (3)
- Ti-6Al-4V (3)
- Biomedical Engineering (2)
- Compact Devices (2)
- Computational Fluid Dynamics (2)
- Computer Science (2)
- Engineering (2)
- Fatigue (2)
- Finite Field Multiplication (2)
- Ischemic Stroke (2)
- Low Complexity (2)
- Machine Learning (2)
- Medical Imaging (2)
- Microstructure (2)
- PIV (2)
- Signal Processing (2)
- Simulation (2)
- Social Media (2)
- Solar Energy (2)
Articles 1 - 30 of 93
Full-Text Articles in Engineering
Retail Facility Design Considering Product Exposure, Corinne H. Mowrey
Retail Facility Design Considering Product Exposure, Corinne H. Mowrey
Browse all Theses and Dissertations
Retail store's layout affects a shopper's visual experience and correspondingly the time spent in the store, navigation through the aisles, and allocation of attention and money across departments and categories. We contend that alternate rack layouts allow for more of a rack's facing to appear in the shopper's visual field. In this work we focus on the following two questions: (i) what impact does a given rack layout have on how much of a rack display is exposed to a shopper? (ii) what rack layouts maximize exposure to a shopper? To address the first question, we introduce a set of …
Knowledge-Driven Implicit Information Extraction, Pathirage Dinindu Perera
Knowledge-Driven Implicit Information Extraction, Pathirage Dinindu Perera
Browse all Theses and Dissertations
Natural language is a powerful tool developed by humans over hundreds of thousands of years. The extensive usage, flexibility of the language, creativity of the human beings, and social, cultural, and economic changes that have taken place in daily life have added new constructs, styles, and features to the language. One such feature of the language is its ability to express ideas, opinions, and facts in an implicit manner. This is a feature that is used extensively in day to day communications in situations such as: 1) expressing sarcasm, 2) when trying to recall forgotten things, 3) when required to …
Modification Reactivity Analysis Of Human Replication Protein A In Biologically Important States, Ryan James Yoakum
Modification Reactivity Analysis Of Human Replication Protein A In Biologically Important States, Ryan James Yoakum
Browse all Theses and Dissertations
Human Replication Protein A (RPA) is a heterotrimeric protein consisting of 70, 32, and 14 kDa subunits. RPA is the predominant single stranded DNA binding protein within the cell. It is involved in all forms of the DNA metabolic pathways, including but not limited to, replication, recombination, damage repair, as well as cell cycle and DNA check point signaling. RPA is phosphorylated (pRPA) during G1-S phase and is dephosphorylated during M phase. Further, RPA is hyperphosphorylated during DNA damage. Through the use of x-ray crystallography and nuclear magnetic resonance, researchers have proposed models and structures based on truncated portions of …
Wikimatcher: Leveraging Wikipedia For Ontology Alignment, Helena Brooke Mccurdy
Wikimatcher: Leveraging Wikipedia For Ontology Alignment, Helena Brooke Mccurdy
Browse all Theses and Dissertations
As the Semantic Web grows, so does the number of ontologies used to structure the data within it. Aligning these ontologies is critical to fully realizing the potential of the web. Previous work in ontology alignment has shown that even alignment systems utilizing basic string similarity metrics can produce useful matches. Researchers speculate that including semantic as well as syntactic information inherent in entity labels can further improve alignment results. This paper examines that hypothesis by exploring the utility of using Wikipedia as a source of semantic information. Various elements of Wikipedia are considered, including article content, page terms, and …
Mixed Modulation For Remote Sensing With Embedded Navigation, Michael J. Nowak
Mixed Modulation For Remote Sensing With Embedded Navigation, Michael J. Nowak
Browse all Theses and Dissertations
As electromagnetic spectrum availability shrinks, there is growing interest in combining multiple functions, such as radar and communications signals, into a single multipurpose waveform. Historically mixed-modulation has used orthogonal separation of different message signals in different dimensions such as time or frequency. This research explores an alternative approach of implementing an in-band, mixed-modulated waveform that combines surveillance radar and navigation functions into a single signal and demonstrates the feasibility of this approach for a limited area navigation solution. The first contribution of this research is the use of reduced phase-angle binary phase shift keying (BPSK) along with overlapped (channelized) spread-spectrum …
Hybrid Particle Image Velocimetry With The Combination Of Cross-Correlation And Optical Flow Method, Mark Bradley Johnson
Hybrid Particle Image Velocimetry With The Combination Of Cross-Correlation And Optical Flow Method, Mark Bradley Johnson
Browse all Theses and Dissertations
Particle Image Velocimetry (PIV) has been of relevant discussions lately as the equipment used to obtain temporally and spatially resolved flow fields have advanced rapidly. Despite these advancements, the accuracy of evaluating these images have yet to exceed expectations. Current techniques typically utilize one method, either correlation based (frequently) or optical flow (non-frequently), and both are vulnerable to specific conditions incorporated in the PIV images. Only through the combination of two methods, cross correlation and optical flow, can a technique benefit from the strengths of each method while concealing the flaws each individual method contains. The Hybrid Particle Image Velocimetry …
Aircraft Thermal Management Using Liquefied Natural Gas, Sean Robert Nuzum
Aircraft Thermal Management Using Liquefied Natural Gas, Sean Robert Nuzum
Browse all Theses and Dissertations
Many technological advances are expected to increase the capabilities of the future aircraft, both civilian and military. These improvements come in many forms such as new wing or fuselage shapes to improve lift or decrease drag. Other improvements are internal. One of these areas is the inclusion of advanced electronic systems for various roles. These changes affect a wide range of aircraft systems including, but not limited to avionics, power generation and thermal management. While these modifications promise to increase aircraft capabilities such as its range, payload or other key performance parameters, there are some significant drawbacks. One drawback is …
Use Of Eeg To Understand Brain Intensity In Engineering Students Using A Stem Educational Mobile Application, Kevin Hatcher
Use Of Eeg To Understand Brain Intensity In Engineering Students Using A Stem Educational Mobile Application, Kevin Hatcher
Browse all Theses and Dissertations
In the first two years of undergraduate work in engineering, students are taught concepts such as physics, electronics, and most importantly calculus. It is especially important for students to get a better grasp on foundational math concepts, such as calculus in the beginning or they will be overwhelmed by the workload to come. The focus of this research was to understand how students learning calculus, could benefit from an augmented-educational mobile application. In the study students were measured with electroencephalography (EEG) measurements utilized by the Emotive EPOC® as they attempted to solve different limit themed problems in order to determine …
Locally Optimized Covariance Kriging For Non-Stationary System Responses, Daniel Lee Clark Jr.
Locally Optimized Covariance Kriging For Non-Stationary System Responses, Daniel Lee Clark Jr.
Browse all Theses and Dissertations
In this thesis, the Locally-Optimized Covariance (LOC) Kriging method is developed. This method represents a flexible surrogate modeling approach for approximating a non-stationary Kriging covariance structures for deterministic responses. The non-stationary covariance structure is approximated by aggregating multiple stationary localities. The aforementioned localities are determined to be statistically significant utilizing the Non-Stationary Identification Test. This methodology is applied to various demonstration problems including simple one and two-dimensional analytical cases, a deterministic fatigue and creep life model, and a five-dimensional fluid-structural interaction problem. The practical significance of LOC-Kriging is discussed in detail and is directly compared to stationary Kriging considering computational …
Analyzing Cognitive Workload Through Eye-Related Measurements: A Meta-Analysis, Melissa Patricia Coral
Analyzing Cognitive Workload Through Eye-Related Measurements: A Meta-Analysis, Melissa Patricia Coral
Browse all Theses and Dissertations
Understanding cognitive workload has become a vital topic for researchers in developing future systems. Existing research has investigated the use of physiological measurements of the eye with cognitive workload, though a quantitative synthesis has yet to be performed. A meta-analysis was conducted to examine the effects of cognitive workload on eye-related measurements. The objective of this meta-analysis is not to determine a difference between the levels of workload, but to identify reliable measurements. Measurements through blinks, saccades, pupils, and fixations were examined. Twenty-two studies, contributing to a total of sixty entries, met the appropriate inclusion criteria for the meta-analysis. Findings …
Knowledge Driven Search Intent Mining, Ashutosh Jadhav
Knowledge Driven Search Intent Mining, Ashutosh Jadhav
Browse all Theses and Dissertations
Understanding users' latent intents behind search queries is essential for satisfying a user's search needs. Search intent mining can help search engines to enhance its ranking of search results, enabling new search features like instant answers, personalization, search result diversification, and the recommendation of more relevant ads. Hence, there has been increasing attention on studying how to effectively mine search intents by analyzing search engine query logs. While state-of-the-art techniques can identify the domain of the queries (e.g. sports, movies, health), identifying domain-specific intent is still an open problem. Among all the topics available on the Internet, health is one …
A Theoretical Framework For Evaluating Mental Workload Resources In Human Systems Design For Manufacturing Operations, Sharon Claxton Bommer
A Theoretical Framework For Evaluating Mental Workload Resources In Human Systems Design For Manufacturing Operations, Sharon Claxton Bommer
Browse all Theses and Dissertations
Manufacturing is a human-driven process that applies energy and manpower to produce consumer goods. In repetitive task processes like manufacturing systems, optimal performance is extremely important for the production employee and the company. In the general fast pace of manufacturing operations, there is the potential for operator errors, which correlates to possible safety issues and loss of revenue. This research explores the influence of cognitive resources on operator performance in manufacturing operations using the Multiple Resource Theory (MRT) and mental workload measures. Computer simulation models and mathematical modeling with Improved Performance Research Integration Tool (IMPRINT) were used to assess mental …
Fpga Realization Of Low Register Systolic All One-Polynomial Multipliers Over Gf (2M) And Their Applications In Trinomial Multipliers, Pingxiuqi Chen
Fpga Realization Of Low Register Systolic All One-Polynomial Multipliers Over Gf (2M) And Their Applications In Trinomial Multipliers, Pingxiuqi Chen
Browse all Theses and Dissertations
All-one-polynomial (AOP)-based systolic multipliers over GF (2m) are usually not con-sidered for practical implementation of cryptosystems such as elliptic curve cryptography (ECC) due to security reasons. Besides that, systolic AOP multipliers usually suer from the problem of high register-complexity, especially in field-programmable gate array (FPGA) platforms where the register resources are not that abundant. In this thesis, however, we have shown that the AOP-based systolic multipliers can easily achieve low register-complexity implementations and the proposed architectures can be employed as computation cores to derive ecient implementations of systolic Montgomery multipli-ers based on trinomials, which are recommended by the National Institute …
Refining A Post-Stroke Pharmacological And Physical Treatment To Reduce Infarct Volume Or Improve Functional Recovery, Using Gene Expression Changes In The Peri-Infarct Region To Examine Potential Mechanisms In Male And Female Rats, Moner A. Ragas
Browse all Theses and Dissertations
Stroke, a life-threatening medical condition, is the fifth-leading cause of death in the United States with an estimated annual cost of treatments above $70 billion. A combination of innovative approaches was used in our lab to optimize the pre-clinical stroke research design by choosing the most appropriate animal model and methodologies to increase the translational capability of the stroke research. The first study, modeled after ongoing clinical trials using fluoxetine, refined the appropriate timing of fluoxetine and ascorbic acid delivery if a rat was on simvastatin for 7 days pre-stroke and throughout the remainder of the study. Administration of fluoxetine …
Mining And Analyzing Subjective Experiences In User Generated Content, Lu Chen
Mining And Analyzing Subjective Experiences In User Generated Content, Lu Chen
Browse all Theses and Dissertations
Web 2.0 and social media enable people to create, share and discover information instantly anywhere, anytime. A great amount of this information is subjective information -- the information about people's subjective experiences, ranging from feelings of what is happening in our daily lives to opinions on a wide variety of topics. Subjective information is useful to individuals, businesses, and government agencies to support decision making in areas such as product purchase, marketing strategy, and policy making. However, much useful subjective information is buried in ever-growing user generated data on social media platforms, it is still difficult to extract high quality …
Rf Cmos Band Pass Filters With Wide Tuning Frequency, Controllable Pass Band And High Stopband Rejection: Using Passive And Active Inductors, Jian Chen
Browse all Theses and Dissertations
With the increasing demand for high performance RF front-end modules, like multimedia handset and base station devices accommodating multiple wireless standards (2G, 2.5G, 3G, WiMAX, and LTE). Multiple IF amplifiers, mixers, RF band pass filters (BPFs), modulators and demodulators are desired to be tunable to meet dynamic standards with different frequency bands. Tunable devices with wide tuning frequency range, tuning speed, high linearity, energy conservative, high pass band gain, high stop band rejection are the paramount components in the reconfigurable RF front-end systems. In this dissertation, first a wide tuning passive inductor band pass filter (BPF) with steep roll-off high …
Tunable C Band Coupled-C Bpf With Resonators Using Active Capacitor And Inductor, Yu Wang
Tunable C Band Coupled-C Bpf With Resonators Using Active Capacitor And Inductor, Yu Wang
Browse all Theses and Dissertations
In this thesis, a classic second-order coupled-capacitor Chebyshev bandpass filter with resonators using active capacitor and inductor is presented. The low cost and small size of CMOS active components makes the band pass filter (BPF) attractive in fully-integrated CMOS applications. The active capacitor is designed to compensate active inductor's resistance for resistive match in the resonator. Meanwhile, adjusting design parameter of the active component provides BPF tunability in center frequency, pass band and pass band gain. Designed in 1.8V 180 nanometer CMOS process, the BPF has a tuning frequency range of 758-864 MHz, a controllable pass band of 7.1-65.9 MHz, …
1-Ghz Cmos Analog Signal Squaring Circuit, Lizhong He
1-Ghz Cmos Analog Signal Squaring Circuit, Lizhong He
Browse all Theses and Dissertations
In analog signal processing the squaring circuit represents the core for implementing an analog signal having a value representing the square of the input signal. For example, calculating the square of input signal is necessary in adaptive processing of an input signal based on its instantaneous root mean square value. In this thesis, a new 1-Ghz analog signal squaring circuit (squarer) designed in 180 nanometer CMOS process is presented. It is implemented by CMOS components including current source, current mirror, differential amplifier, low-pass filter, and voltage output buffer. A gain control amplifier and a 10-bit ADC are set up to …
Detecting Php-Based Cross-Site Scripting Vulnerabilities Using Static Program Analysis, Steven M. Kelbley
Detecting Php-Based Cross-Site Scripting Vulnerabilities Using Static Program Analysis, Steven M. Kelbley
Browse all Theses and Dissertations
With the widespread adoption of dynamic web applications in recent years, a number of threats to the security of these applications have emerged as significant challenges for application developers. The security of developed applications has become a higher priority for both developers and their employers as cyber attacks become increasingly more prevalent and damaging. Some of the most used web application frameworks are written in PHP and have become major targets due to the large number of servers running these applications worldwide. A number of tools exist to evaluate PHP code for issues, however most of these applications are not …
Engineering Healthcare Delivery: A Systems Engineering Approach To Improving Trauma Center Nursing Efficacy, Robert A. Myers
Engineering Healthcare Delivery: A Systems Engineering Approach To Improving Trauma Center Nursing Efficacy, Robert A. Myers
Browse all Theses and Dissertations
The efficacy of nurses is impacted by their availability to their patients and the occurrence of both beneficial and detrimental interruptions. Using system engineering tools, this work addresses open challenges in (i) methods for effective matching of nurse availability to non-stationary stochastic demand, (ii) differentiation of beneficial and detrimental interruptions, and (iii) modeling of nurses’ work with interruptions to provide an objective method of testing interruption interventions. First, we propose both qualitative and quantitative approaches to evaluate and then model the impact of resource scheduling on patient wait time in a Level I trauma center for a highly specialized nurse, …
High-Fidelity Multidisciplinary Sensitivity Analysis For Coupled Fluid-Solid Interaction Design, Koorosh Gobal
High-Fidelity Multidisciplinary Sensitivity Analysis For Coupled Fluid-Solid Interaction Design, Koorosh Gobal
Browse all Theses and Dissertations
In many engineering disciplines such as aerospace, marine, automotive, and biomedical engineering, the consideration of the coupling between the fluid and structural systems is necessary for quality engineering analysis. Therefore, the need for such analysis in the design is continuously increasing. The primary motivation for this work is to develop a sensitivity analysis tool that is capable of calculating accurate sensitivities without significant modification of the source codes for simulations based on non-body conformal grids. The majority of work done on the coupled fluid-solid simulations are based on computational grids that conform to solid boundaries. This becomes a restriction for …
The Design And Experimental Investigation Of Novel Double-Blade Wind Turbine Models Inspired By Houck's Concept, Laura E. Carpenter
The Design And Experimental Investigation Of Novel Double-Blade Wind Turbine Models Inspired By Houck's Concept, Laura E. Carpenter
Browse all Theses and Dissertations
Energy can be captured from wind turbines efficiently today. However there's always room for improvement up to the Betz's limit of 59.3% efficiency. A novel wind turbine blade was designed with double blade rotor inspired by Houck's concept in an attempt to improve the efficiency of the horizontal axis wind turbine. Scaled wind turbine models with a diameter of 150 mm were designed in SolidWorks adjusting the parameters of stagger, gap, and decalage. The general design comprises of two modern blades attached by a curved flow guide at the tip. Fourteen blade models were designed and tested to obtain power, …
A Genetic Algorithm For Asic Floorplanning, Anvesh Kumar Perumalla
A Genetic Algorithm For Asic Floorplanning, Anvesh Kumar Perumalla
Browse all Theses and Dissertations
Semiconductor integrated circuits (ICs) have become key components in almost every aspect of our daily lives. From simple home appliances to extremely sophisticated aerospace systems, we have become increasingly dependent on ICs. System-on-chip (SoC) is an IC methodology that includes multiple design technologies on a single IC chip. SoC was developed to further integrate and manage system complexity. Due to SoC and increasingly dense IC fabrication technologies, design time and thereby system time-to-market are becoming more critical drivers of the IC design cycle. In order to address issues related to design time and time-to-market, highly optimized semiconductor intellectual property (IP) …
Development Of Analytical Equations For Optimum Tilt Of Two-Axis And Single-Axis Rotating Solar Panels For Clear-Atmosphere Condition, Gaurav Subhash Gugale
Development Of Analytical Equations For Optimum Tilt Of Two-Axis And Single-Axis Rotating Solar Panels For Clear-Atmosphere Condition, Gaurav Subhash Gugale
Browse all Theses and Dissertations
Solar Energy is a renewable energy source which is used widely in recent times. Photovoltaic panels collect the sun’s energy and convert it to electricity. Photovoltaic panels are being widely used in both domestic applications, commercial applications, and small-scale power generation applications. Photovoltaic panels are easy to install, they generate most of their power when electrical demands peak, prices of photovoltaic panels are dropping rapidly, photovoltaic panels require low maintenance, their operating costs are minimal, and they are highly suitable for remote applications. The amount of electricity produced by photovoltaic panels depends on the amount of sunlight the panel captures. …
Characterization Of Peripheral Lung Lesions By Statistical Image Processing Of Endobronchial Ultrasound Images, Aaron T. Madaris
Characterization Of Peripheral Lung Lesions By Statistical Image Processing Of Endobronchial Ultrasound Images, Aaron T. Madaris
Browse all Theses and Dissertations
This thesis introduces the concept of implementing greyscale analysis, also known as intensity analysis, on endobronchial ultrasound (EBUS) images for the purposes of diagnosing peripheral lung tumors. The statistical methodology of using greyscale and histogram analysis allows the characterization of lung tissue in EBUS images. Regions of interest (ROI) will be analyzed in MATLAB and a feature vector will be created. A feature vector of first-order, second-order and histogram greyscale analysis will be created and used for the classification of malignant vs benign peripheral lung tumors. The tools that were implemented were MedCalc for the initial statistical analysis of receiver …
Identifying Offensive Videos On Youtube, Rajeshwari Kandakatla
Identifying Offensive Videos On Youtube, Rajeshwari Kandakatla
Browse all Theses and Dissertations
Harassment on social media has become a critical problem and social media content depicting harassment is becoming common place. Video-sharing websites such as YouTube contain content that may be offensive to certain community, insulting to certain religion, race etc., or make fun of disabilities. These videos can also provoke and promote altercations leading to online harassment of individuals and groups. In this thesis, we present a system that identifies offensive videos on YouTube. Our goal is to determine features that can be used to detect offensive videos efficiently and reliably. We conducted experiments using content and metadata available for each …
Early Assessment Of Burn Severity In Human Tissue With Multi-Wavelength Spatial Frequency Domain Imaging, Chien Sing Poon
Early Assessment Of Burn Severity In Human Tissue With Multi-Wavelength Spatial Frequency Domain Imaging, Chien Sing Poon
Browse all Theses and Dissertations
Burn injuries such as thermal burns, which are caused by contact with flames, hot liquids, hot surfaces, and other sources of high heat as well as chemical burns and electrical burns, affects at least 500,000 people in the United States, to which 45,000 of them require medical treatment and 3,500 of them result in death. It has also been reported that in the United States alone, fire results in a death approximately every three hours and an injury every 33 minutes. Early knowledge about burn severity can lead to improved outcome for patients. In this study, the changes in optical …
Extension Of Multivariate Analyses To The Field Of Microbial Ecology, Vijay Shankar
Extension Of Multivariate Analyses To The Field Of Microbial Ecology, Vijay Shankar
Browse all Theses and Dissertations
Ground-breaking advancements in molecular and analytical techniques in the past decade have enabled researchers to accumulate data at an extraordinary rate. Especially in the field of microbial ecology, the introduction of technologies such as high-throughput sequencing, quantitative microarrays, nuclear magnetic resonance and mass spectrometry has led to the interrogation of diverse and previously unexplored microbial communities at unparalleled depth. Analysis and interpretation of patterns within datasets acquired with such high-throughput methods require powerful statistical approaches. A class of such techniques called multivariate statistical analyses is an excellent choice for analysis of complex microbiota-related datasets. This field of statistics is constantly …
Computer Graphics And Visualization Based Analysis And Record System For Hand Surgery And Therapy Practice, Venkatamanikanta Subrahmanyakartheek Gokavarapu
Computer Graphics And Visualization Based Analysis And Record System For Hand Surgery And Therapy Practice, Venkatamanikanta Subrahmanyakartheek Gokavarapu
Browse all Theses and Dissertations
In this thesis, we have designed and developed a computer graphics and visualization based analysis and record system for hand surgery and therapy practice. In particular, we have designed and developed three novel technologies: (i) model-based data compression for hand motion records (ii) model-based surface area estimation of a human hand and (iii) an emulated study of hand wound area estimation. First, we have presented a new data compression technique to better address the needs of electronic health record systems, such as file storage and privacy. In our proposed approach, we will extract the patient's hand motion information and store …
Novel Therapeutic Approach For Regulating The Susceptibility Of Epitheliato Adenovirus Infection, Mahmoud Soliman Salem Alghamri
Novel Therapeutic Approach For Regulating The Susceptibility Of Epitheliato Adenovirus Infection, Mahmoud Soliman Salem Alghamri
Browse all Theses and Dissertations
Human Adenoviruses (AdVs) are etiologic agents for respiratory tract, digestive tract, heart, and eye infections. Although most AdV infections are self-resolving, some infections progress to acute respiratory disease with up to 50% mortality, particularly in immunosuppressed people. Except for vaccines for serotypes, 4 and 7, serotypes that are prevalent in the military, no vaccines or therapeutics that specifically prevent or treat AdV infection exist. On the other hand, AdV remains the most common vector system used in gene therapy clinical trials worldwide and several AdV vectors show promise in phase III clinical trials. The majority of AdVs use the coxsackievirus …