Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Wright State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1471 - 1500 of 7018

Full-Text Articles in Entire DC Network

Null Values And Null Vectors Of Matrix Pencils And Their Applications In Linear System Theory, Neel Dalwadi Jan 2017

Null Values And Null Vectors Of Matrix Pencils And Their Applications In Linear System Theory, Neel Dalwadi

Browse all Theses and Dissertations

Considerable literature exists in linear algebra to solve the generalized eigenvalue, eigenvector problem (F − [lambda]G)v = 0 where F, G 2 Rs×s, are square matrices. However, a number of applications lend themselves to the case whereF, G 2 Rs×, and s ≠ t. The existing methods cannot be used for such non-square cases. This research explores structural decomposition of a matrix pencil (F − [lambda]G), s 6≠ t to compute finite values of [lambda] for which rank (F − [lambda]G) < min(s, t). Moreover, from the decomposition of the matrix pencil, information about the order of [lambda] at infinity, the Kronecker row and column indices of a matrix pencil can also be extracted. Equally important is the computation of non-zero vectors w 2 R1×s and v 2 Rt×1 corresponding to each finite value of [lambda], such that w(F - [lambda] G) = 0 and (F - [lambda]G)v = 0. Algorithms are developed for the computation of lambda, w, and v using numerically efficient techniques. Proposed algorithms are applied to problems encountered in system theory and illustrated by means of numerical examples.


Portable Motion Lab For Diagnostic And Rehabilitation Processes, Yogesh Laxman Chavan Jan 2017

Portable Motion Lab For Diagnostic And Rehabilitation Processes, Yogesh Laxman Chavan

Browse all Theses and Dissertations

In this thesis research, we have explored the capabilities of a household body-tracking device - Microsoft Xbox Kinect for motion analysis and assessment to assist patient’s rehabilitation after joint replacement and repair surgeries. In particular, we have combined the motion tracking capabilities of Kinect with the 3D modelling of human body for accurate and intuitive movement assessment and feedback. Our prototype system demonstrates the effective and efficient workflow of motion capturing, data processing and analyzing and augmented reality based presentation, resulting in a design which is not only accurate, reliable and robust, but also extremely cost- and space-efficient. Furthermore, we …


Exploring The Role Of Lipin1 In Mitophagy Process Using Lipin1 Deficient-Egfp Tagged Lc3 Transgenic Mice, Abdullah Ali Alshudukhi Jan 2017

Exploring The Role Of Lipin1 In Mitophagy Process Using Lipin1 Deficient-Egfp Tagged Lc3 Transgenic Mice, Abdullah Ali Alshudukhi

Browse all Theses and Dissertations

Lipin1 (phosphatidic acid phosphatase) is a key molecule in the cells with two functions: first, it converts phosphatidic acid into diacylglycerol in the cytosol which in turn makes triglycerides. Second, in nucleus lipin1 acts as a transcriptional factor which regulates the expression of genes involved in the fatty acid oxidation and lipid metabolism. Clinically, Lpin1 gene mutations have been detected in patients with severe rhabdomyolysis accompanied with aggregated and dysfunctional mitochondria in their type II muscle fiber. Previously, we have observed that mice with lipin1 deficiency had aggregated mitochondria and abnormal autophagosomes formations by electron microscopy. The mechanism underlying the …


Detecting Information Leakage In Android Malware Using Static Taint Analysis, Soham P. Kelkar Jan 2017

Detecting Information Leakage In Android Malware Using Static Taint Analysis, Soham P. Kelkar

Browse all Theses and Dissertations

According to Google, Android now runs on 1.4 billion devices. The growing popularity has attracted attackers to use Android as a platform to conduct malicious activities. To achieve these malicious activities some attacker choose to develop malicious Apps to steal information from the Android users. As the modern day smartphones process, a lot of sensitive information, information security, and privacy becoming a potential target for the attacker. The malicious Apps steal information from the infected phone and send this information to the attacker-controlled URLs using various Android sink functions. Therefore, it necessary to protect data as it can prove detrimental …


Configuration And Electronic Properties Of The Interface Between Lead Iodide Hybrid Perovskite And Self-Assembled Monolayers In Solar Cells, Parin Divya Amlani Jan 2017

Configuration And Electronic Properties Of The Interface Between Lead Iodide Hybrid Perovskite And Self-Assembled Monolayers In Solar Cells, Parin Divya Amlani

Browse all Theses and Dissertations

Hybrid perovskite photovoltaic materials are currently the most promising functional materials for solar cell applications with efficiency reaching to those of more conventional materials such as silicon. Using self-assembled monolayers between photovoltaic materials and electrodes is a method for improving the stability and functionality. Recent experiments have shown that using 4-mercaptobenzoic acid and pentafluorobenzenethiol monolayers bridging lead iodide hybrid perovskite photovoltaic materials and electrodes result in improved stability and efficiency. The details of monolayer assembly, molecular adsorption configuration, and resulting modification of electronic properties are important characteristics related to solar cell performance. These characteristics can be obtained through accurate computer …


Turboelectric Distributed Propulsion System For Nasa Next Generation Aircraft, Hashim H. Abada Jan 2017

Turboelectric Distributed Propulsion System For Nasa Next Generation Aircraft, Hashim H. Abada

Browse all Theses and Dissertations

Next generation aircraft, more specifically NASA aircraft concepts, will include new technologies and make many advancements in fuel economy and noise. However, there are some challenges associated with the latest technologies that NASA is planning to use for the next generation aircraft. For example, these aircraft concepts require large amounts of electrical power to generate the required thrust throughout a notional flight profile. One of the new technologies is using advanced propulsion systems, such as the Turboelectric Distributed Propulsion (TeDP) system, which is significantly different from current aerospace high bypass turbofan based propulsion system. The TeDP propulsion system replaces the …


Determination Of The Shape Of A Flattening Filter Free (Fff) Radiation Beam When Modified By A Physical Wedge, Kalel Alsaeed Jan 2017

Determination Of The Shape Of A Flattening Filter Free (Fff) Radiation Beam When Modified By A Physical Wedge, Kalel Alsaeed

Browse all Theses and Dissertations

The determination of a flattening filter free (FFF) beam profile when the collimator is intentionally modified to incorporate a physical wedge. Specifically, radiation beam profiles change shape when a metallic wedge is placed in the path of the beam. Examination of this unknown is necessary to ascertain whether a physical wedge is clinically beneficial for applications involving FFF beams. The aim of this study is to determine if the radiation profile of a flattening filter free beam having a physical wedge is comparable to a beam with a flattening filter, with the same wedge inserted. This research involves measurement of …


Computational Simulations Of Biomechanical Kinematics In Wsu Total Ankle Replacement Systems, Dinesh Gundapaneni Jan 2017

Computational Simulations Of Biomechanical Kinematics In Wsu Total Ankle Replacement Systems, Dinesh Gundapaneni

Browse all Theses and Dissertations

Ankle arthritis constitutes about 10% of all joint arthritis cases, however, the revision rate of ankle replacement devices is three times higher than comparable hip and knee devices. With complicated bone morphology and surrounding ligament structures, the physiological and gait characteristics of the ankle joint presents a challenge to biomechanicians. As a result, there is a lack of fundamental understanding how the ligaments and articular surfaces interact. The objective of this doctoral research is to address the pattern of contact at the joint articulation, the fundamental role of ligaments in joint mobility, and biomechanics of total ankle replacement (TAR) devices. …


Data Mining Techniques And Mathematical Models For The Optimal Scholarship Allocation Problem For A State University, Shuai Wang Jan 2017

Data Mining Techniques And Mathematical Models For The Optimal Scholarship Allocation Problem For A State University, Shuai Wang

Browse all Theses and Dissertations

Enrollment Management and Financial Aid. Enrollment management is the term that is often used to describe the synergistic approaches to influence the enrollment of higher education institutions, and consists of activities such as student college choice, transition to college, retention, and graduation. Of all the factors, financial aid, institution rank, and tuition are the three most important ones that affect students' choice processes and matriculation decisions; as such, with the continuous increase of tuition over the years, financial aid serves as a marketing tool and plays an important role in attracting students. In the United States, in the 2012-2013 academic …


An Automated Controller Design Methodology For Six Degree-Of-Freedom Aircraft Models, Dominic J. Dierker Jan 2017

An Automated Controller Design Methodology For Six Degree-Of-Freedom Aircraft Models, Dominic J. Dierker

Browse all Theses and Dissertations

This thesis presents an automated design methodology for development of six degree-of-freedom aircraft controllers. The essential functions required of the controller design are 1) to provide sufficient inner loop compensation to guarantee dynamic stability and acceptable handling qualities over the full flight envelope, and, 2) to enable automated mission following capabilities through implementation of outer loop trackers. A hierarchical control architecture consisting of nested nonlinear dynamic inversion control loops is proposed as a means of achieving these top level objectives. Gain tuning based on an automated linearization methodology is then suggested. Next, an automated optimal control allocation algorithm is tested …


Electrical Power And Storage For Nasa Next Generation Aircraft, Saif Al-Agele Jan 2017

Electrical Power And Storage For Nasa Next Generation Aircraft, Saif Al-Agele

Browse all Theses and Dissertations

Next generation aircraft will incorporate more electrical power generation and storage for both a distributed electric propulsion system and onboard subsystems. The power generation in this type of aircraft will require orders of magnitude higher than today’s commercial aircrafts, thus producing many challenges. For this reason, a unique, high-powered electric propulsion system primarily powered by a turbo-generator system with electrical storage is being considered. A Simulink/Matlab model has bee created for the electrical power system of the next generation blended wing commercial aircraft proposed by NASA. The components of the electrical system include turbo-generators, generators, battery banks, and electrical distribution …


Effect Of Exposure Of Raw264.7 Macrophages To Salmonella Typhimurium Components On Cell Viability, Cytoskeleton Re-Arrangement And Cytokine Secretion, Khalid Abdullah Alyahya Jan 2017

Effect Of Exposure Of Raw264.7 Macrophages To Salmonella Typhimurium Components On Cell Viability, Cytoskeleton Re-Arrangement And Cytokine Secretion, Khalid Abdullah Alyahya

Browse all Theses and Dissertations

Innate immune system plays an important role in individual's protection against pathogens and in activation of adaptive immune system. Utilizing RAW 264.7 murine macrophages as an innate immune response representative in this study, we analyzed the effect of invasive pathogen's components (e.g. flagellin) on the arrangement of macrophage's cytoskeleton, on viability of immune cells and on secretion of pro-inflammatory and anti-inflammatory cytokines and on fluorescence intensity of cytoskeleton after rearrangement. Additionally, we studied the similarity and differences between bacterial (Salmonella typhimurium) and synthetic TLR4 agonist (synthetic lipid-A) on viability, fluorescence intensity, cytokine secretion, and cytoskeleton rearrangements. Similarly, we studied the …


Calibration Models And System Development For Compressive Sensing With Micromirror Arrays, Rebecca L. Profeta Jan 2017

Calibration Models And System Development For Compressive Sensing With Micromirror Arrays, Rebecca L. Profeta

Browse all Theses and Dissertations

Compressive sensing (CS) is an active research field focused on finding solutions to sparse linear inverse problems, i.e. estimating a signal using fewer linear measurements than there are unknowns. The assumption of signal sparsity makes solutions to this otherwise ill-posed problem possible and has lead to a number of technological innovations such as smaller and less expensive cameras that capture high resolution imagery, low-power radar systems, and accelerated MRI scanners. In this thesis, we present the development of a hardware CS imaging system using a Digital Micromirror Device (DMD) providing spatial light modulation via an array of micromirrors that can …


Harassment Detection On Twitter Using Conversations, Venkatesh Edupuganti Jan 2017

Harassment Detection On Twitter Using Conversations, Venkatesh Edupuganti

Browse all Theses and Dissertations

Social media has brought people closer than ever before, but the use of social media has also brought with it a risk of online harassment. Such harassment can have a serious impact on a person such as causing low self-esteem and depression. The past research on detecting harassment on social media is primarily based on the content of messages exchanged on social media. The lack of context when relying on a single social media post can result in a high degree of false alarms. In this study, I focus on the reliable detection of harassment on Twitter by better understanding …


Semantic Web Foundations For Representing, Reasoning, And Traversing Contextualized Knowledge Graphs, Vinh Thi Kim Nguyen Jan 2017

Semantic Web Foundations For Representing, Reasoning, And Traversing Contextualized Knowledge Graphs, Vinh Thi Kim Nguyen

Browse all Theses and Dissertations

Semantic Web technologies such as RDF and OWL have become World Wide Web Consortium (W3C) standards for knowledge representation and reasoning. RDF triples about triples, or meta triples, form the basis for a contextualized knowledge graph. They represent the contextual information about individual triples such as the source, the occurring time or place, or the certainty. However, an efficient RDF representation for such meta-knowledge of triples remains a major limitation of the RDF data model. The existing reification approach allows such meta-knowledge of RDF triples to be expressed in RDF by using four triples per reified triple. While reification is …


Automated Rendering Of Schema Diagram For Ontologies, Nazifa Karima Jan 2017

Automated Rendering Of Schema Diagram For Ontologies, Nazifa Karima

Browse all Theses and Dissertations

Semantic Web extends the current web, using ontologies, metadata and other technologies to establish links between terms and concepts. This enables machines to automatically integrate information across different platforms utilizing the standard definitions. Furthermore, reasoning agents can infer new knowledge by gathering existing information and these additional connections between them. As a result of being designed and maintained independently, data sources exhibit highly heterogeneous nature. This increases the complexity of data integration and hinders interoperability. However, if we can align the overlapping concepts among different domains of knowledge, the prospect of achieving interoperability and integration without having any intermediate reasoning …


Towards A Prediction Of Landscape Evolution From Chemical Weathering And Soil Production, Eric Alan Jackson Jan 2017

Towards A Prediction Of Landscape Evolution From Chemical Weathering And Soil Production, Eric Alan Jackson

Browse all Theses and Dissertations

The time evolution of a periodic landscape under the influence of chemical weathering and physical erosion is computed. The model used incorporates weathering and soil production as a flux limited reaction controlled by groundwater flow. Scaling of the flow rate is obtained from a percolation theoretic treatment. The erosion of the soil material produced by this process is modeled by the diffusion of elevation, as consistent with downslope soil transport proportional to the tangent of the angle of the topography, and application of the equation of continuity to surface soil transport. Three initial topographies are examined over a periods of …


Adapting The Search Space While Limiting Damage During Learning In A Simulated Flapping Wing Micro Air Vehicle, Monica Sam Jan 2017

Adapting The Search Space While Limiting Damage During Learning In A Simulated Flapping Wing Micro Air Vehicle, Monica Sam

Browse all Theses and Dissertations

Cyber-Physical Systems (CPS) are characterized by closely coupled physical and software components that operate simultaneously on different spatial and temporal scales; exhibit multiple and distinct behavioral modalities; and interact with one another in ways not entirely predictable at the time of design. A commonly appearing type of CPS are systems that contain one or more smart components that adapt locally in response to global measurements of whole system performance. An example of a smart component robotic CPS system is a Flapping Wing Micro Air Vehicle (FW-MAV) that contains wing motion oscillators that control their wing flapping patterns to enable the …


Thermoelectrical Properties Of Covetics, S. M. Sarif Rana Jan 2017

Thermoelectrical Properties Of Covetics, S. M. Sarif Rana

Browse all Theses and Dissertations

Covetics are hybrid materials fabricated by fusing carbon with metals in an induction furnace. There is an indication that covetics have better thermal and electrical proper-ties in comparison with pure metals. The main goal of this research is to study thermal transport in covetics measured by specific absorption rate using calorimetry. In addition, temperature distribution has been measured along the both metal and covetic wires carrying currents of 5 A and 10 A, respectively. The first set of copper covetic (Cu cov) samples with nominal content of 36 at% carbon were prepared by Third Millennium Materials Company (TMMC) in the …


Development Of An Ultra-Portable Non-Contact Wound Measurement System, Anka Babu Billa Jan 2017

Development Of An Ultra-Portable Non-Contact Wound Measurement System, Anka Babu Billa

Browse all Theses and Dissertations

Continuous monitoring of changes in wound size is key to correctly predict whether wounds will heal readily with conventional treatment or require more aggressive treatment strategies. Unfortunately, existing wound measurement solutions don't meet the clinical demand due to their limitations in accuracy, operating complexity and time, acquisition and operation cost, or reproducibility, resulting in unnecessarily lengthy recovery or extra treatment procedures, incurring an excessively high financial cost, and in many cases extended usage of addictive painkillers. In this thesis, we proposed and developed a low cost, a portable non-contact solution that combines multi-spectral imaging and a portfolio of imaging processing …


Antimicrobial Activity Of Fractionated Borohydride-Capped And Electrochemical Colloidal Silver, Marjorie M. Markopoulos Jan 2017

Antimicrobial Activity Of Fractionated Borohydride-Capped And Electrochemical Colloidal Silver, Marjorie M. Markopoulos

Browse all Theses and Dissertations

Silver nanoparticles (AgNPs) and ionic silver (Ag+) are known to be broad-spectrum antimicrobial agents. Recent studies show these agents may be an alternative to the most widely used drinking water disinfectant, chlorine. Chlorine is a toxic industrial chemical with a lethal concentration of 430 ppm after 30 minutes. Additionally, chlorine can react with naturally occurring materials to produce a number of disinfection byproducts such as chloroform and trihalomethanes. Some of these byproducts pose cancer risks in addition to other negative impacts to human health. These would be eliminated with the use of Ag+ or AgNPs. The main goal of this …


A Study On Status And Distribution Of Passeriformes In Bagh District Of Azad Kashmir, Zahid Bhatti Jan 2017

A Study On Status And Distribution Of Passeriformes In Bagh District Of Azad Kashmir, Zahid Bhatti

Journal of Bioresource Management

The Passeriformes is the largest and most diverse commonly recognized clade of birds including more than seventy families. The reed beds are important habitats for several passerine bird species and the abundance of these species seem to be influenced by vegetation structure. Passerines feed mainly on insects, nuts and seeds collected from trees and shrubs in summer. In winter their feeding behavior changes and they feed on berries and fruits (Roberts, 1992). This study was conducted to prepare and compare the new checklist and distribution of Passeriformes in District Bagh in Azad Kashmir with the previous one for getting new …


Rescue And Rehabilitation Of An Indian Rock Python (Python Molurus): First Case Study From Pakistan, Fida Muhammad Khan, Fakhar-I- Abbas, Adila Nazli, Madeeha Manzoor, Zahid Iqbal Khan Jan 2017

Rescue And Rehabilitation Of An Indian Rock Python (Python Molurus): First Case Study From Pakistan, Fida Muhammad Khan, Fakhar-I- Abbas, Adila Nazli, Madeeha Manzoor, Zahid Iqbal Khan

Journal of Bioresource Management

Pythons are facing the threat of extinction due to human annihilation and interference in natural habitats of pythons. Indian rock python (Python molurus) has been stated as Lower Risk/Near Threatened by International Union for the Conservation of Nature (IUCN). Therefore, there is an intense need to change the perception of people and encourage them to coincide with this big snake. Current study involved the rescue and rehabilitation of an Indian rock python (P. molurus) spotted at the shrine of Baba Shah Jeevan, Rawalpindi, Pakistan. Python was grasped by skilled snake catchers and taken to the wildlife …


Admissions Report - Summary Data - December 2016, Office Of Institutional Research & Effectiveness, Wright State University Dec 2016

Admissions Report - Summary Data - December 2016, Office Of Institutional Research & Effectiveness, Wright State University

Admissions Reports

Summary report of applicants to Wright State including data on ethnicity, region, intended college, transfer, and direct admit from high school for Fall Semester 2017.


Admissions Report - Detailed Data - December 2016, Office Of Institutional Research & Effectiveness, Wright State University Dec 2016

Admissions Report - Detailed Data - December 2016, Office Of Institutional Research & Effectiveness, Wright State University

Admissions Reports

Detailed report of applicants to Wright State including data on county of residency, intended major, and ethnicity for Fall Semester 2017.


Wsu Board Of Trustees Meeting Minutes, December 15-16, 2016 Dec 2016

Wsu Board Of Trustees Meeting Minutes, December 15-16, 2016

Board of Trustees Minutes

Minutes from the Wright State University Board of Trustees Meeting held on December 15-16, 2016.


Coursenetworking And Community: Linking Online Discussion Networks And Course Success, Adrienne L. Traxler, Andrew Gavrin, Rebecca Lindell Dec 2016

Coursenetworking And Community: Linking Online Discussion Networks And Course Success, Adrienne L. Traxler, Andrew Gavrin, Rebecca Lindell

Physics Faculty Publications

Large introductory science courses are isolating for many students, and reducing this isolation is an important factor for student retention in college. Active learning courses often build community among students as an explicit goal, but many commuter or non-traditional students have limited on-campus time. Online discussion forums provide one tool for engaging students with each other outside of class time. This study uses social network analysis with forum data from an introductory physics course to examine students' positions in the class discussion network and link it to their final course grades. We find that, contrary to expectations, there is no …


Preliminary Investigation Of Walking Motion Using A Combination Of Image And Signal Processing, Bradley Schneider, Tanvi Banerjee Dec 2016

Preliminary Investigation Of Walking Motion Using A Combination Of Image And Signal Processing, Bradley Schneider, Tanvi Banerjee

Kno.e.sis Publications

We present the results of analyzing gait motion in first-person video taken from a commercially available wearable camera embedded in a pair of glasses. The video is analyzed with three different computer vision methods to extract motion vectors from different gait sequences from four individuals for comparison against a manually annotated ground truth dataset. Using a combination of signal processing and computer vision techniques, gait features are extracted to identify the walking pace of the individual wearing the camera as well as validated using the ground truth dataset. Our preliminary results indicate that the extraction of activity from the video …


Projective-Planar Graphs With No K3,4-Minor. Ii., John Maharry, Dan Slilaty Dec 2016

Projective-Planar Graphs With No K3,4-Minor. Ii., John Maharry, Dan Slilaty

Mathematics and Statistics Faculty Publications

The authors previously published an iterative process to generate a class of projectiveplanar K3,4-free graphs called ‘patch graphs’. They also showed that any simple, almost 4-connected, nonplanar, and projective-planar graph that is K3,4-free is a subgraph of a patch graph. In this paper, we describe a simpler and more natural class of cubic K3,4- free projective-planar graphs which we call M¨obius hyperladders. Furthermore, every simple, almost 4-connected, nonplanar, and projective-planar graph that is K3,4-free is a minor of a M¨obius hyperladder. As applications of these structures we determine the page number of patch graphs and of M¨obius hyperladders.


Admissions Report - Detailed Data - November 2016, Office Of Institutional Research & Effectiveness, Wright State University Nov 2016

Admissions Report - Detailed Data - November 2016, Office Of Institutional Research & Effectiveness, Wright State University

Admissions Reports

Detailed report of applicants to Wright State including data on county of residency, intended major, and ethnicity for Fall Semester 2017.