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Articles 28621 - 28650 of 31412
Full-Text Articles in Entire DC Network
Brain Image Fusion Approach Based On Side Window Filtering, Ahmad Al Smadi, Ahed Abugabah, Atif Mehmood, Shuyuan Yang
Brain Image Fusion Approach Based On Side Window Filtering, Ahmad Al Smadi, Ahed Abugabah, Atif Mehmood, Shuyuan Yang
All Works
Brain medical image fusion plays an important role in framing a contemporary image to enhance the reciprocal and repetitive information for diagnosis purposes. A novel approach using kernel-based image filtering on brain images is presented. Firstly, the Bilateral filter is used to generate a high-frequency component of a source image. Secondly, an intensity component is estimated for the first image. Thirdly, side window filtering is employed on several filters, including the guided filter, gradient guided filter, and weighted guided filter. Thereby minimizing the difference between the intensity component of the first image and the low pass filter of the second …
Smart Application For Every Car (Saec). (Ar Mobile Application), Murad Al-Rajab, Samia Loucif, Ossama Kousi, Mohamad Bassem Irani
Smart Application For Every Car (Saec). (Ar Mobile Application), Murad Al-Rajab, Samia Loucif, Ossama Kousi, Mohamad Bassem Irani
All Works
Technology is continuously evolving at an exponential rate. Fast technological advances are being made, especially in the field of smart phones, that facilitate the conduct of our daily activities in many areas such as driving. The ever-increasing number of vehicles on roads increases the likelihood of traffic accidents, resulting in higher number of deaths and serious injuries to drivers, passengers, and pedestrians. Among the main causes of road accidents are over speeding, unsafe lane jumping, and failure to keep a safe distance between vehicles, to name a few. In an attempt to contribute to the improvement of road traffic safety, …
A Two-Tier Framework Based On Googlenet And Yolov3 Models For Tumor Detection In Mri, Farman Ali, Sadia Khan, Arbab Waseem Abbas, Babar Shah, Tariq Hussain, Dongho Song, Shaker Ei-Sappagh, Jaiteg Singh
A Two-Tier Framework Based On Googlenet And Yolov3 Models For Tumor Detection In Mri, Farman Ali, Sadia Khan, Arbab Waseem Abbas, Babar Shah, Tariq Hussain, Dongho Song, Shaker Ei-Sappagh, Jaiteg Singh
All Works
Medical Image Analysis (MIA) is one of the active research areas in computer vision, where brain tumor detection is the most investigated domain among researchers due to its deadly nature. Brain tumor detection in magnetic resonance imaging (MRI) assists radiologists for better analysis about the exact size and location of the tumor. However, the existing systems may not efficiently classify the human brain tumors with significantly higher accuracies. In addition, smart and easily implementable approaches are unavailable in 2D and 3D medical images, which is the main problem in detecting the tumor. In this paper, we investigate various deep learning …
Crowdsensing Application On Coalition Game Using Gps And Iot Parking In Smart Cities, Hasan Abu Hilal, Narmeen Abu Hilal, Ala’ Abu Hilal, Tariq Abu Hilal
Crowdsensing Application On Coalition Game Using Gps And Iot Parking In Smart Cities, Hasan Abu Hilal, Narmeen Abu Hilal, Ala’ Abu Hilal, Tariq Abu Hilal
All Works
This paper provides an overview of crowdsensing and some of its applications. Crowdsensing is a part of the collecting data situations also; it’s built on a data system on multiple customer interactions. Moreover, writing the general information of the smart cities can be used to boost to received number frequency to send messages. This work mentioned the Crowdsensing layers that describe Mobile crowdsensing. The article focuses on crowdsensing layers, developed an application in Coalition Game using crowdsensing in terms of GPS. In addition, this paper discussed the Mobile crowdsensing system and how important the cloud is in serving the wireless …
On Modelling And Analyzing Composite Resources’ Consumption Cycles Using Time Petri-Nets, Amel Benna, Fatma Masmoudi, Mohamed Sellami, Zakaria Maamar, Rachid Hadjidj
On Modelling And Analyzing Composite Resources’ Consumption Cycles Using Time Petri-Nets, Amel Benna, Fatma Masmoudi, Mohamed Sellami, Zakaria Maamar, Rachid Hadjidj
All Works
ICT community cornerstones (IoT in particular) gain competitive advantage from using physical resources. This paper adopts Time Petri-Nets (TPNs) to model and analyze the consumption cycles of composite resources. These resources consist of primitive, and even other composite, resources that are associated with consumption properties and could be subject to disruptions. These properties are specialized into unlimited, shareable, limited, limited-but-renewable, and non-shareable, and could impact the availability of resources. This impact becomes a concern when disruptions suspend ongoing consumption cycles to make room for the unplanned consumptions. Resuming the suspended consumption cycles depends on the resources’ consumption properties. To ensure …
Environmental Effects On Constructed Wetland Microbial Diversity And Function In The Context Of Wastewater Management, Sandrine Grandmont-Lemire
Environmental Effects On Constructed Wetland Microbial Diversity And Function In The Context Of Wastewater Management, Sandrine Grandmont-Lemire
Cal Poly Humboldt theses and projects
Microbial communities play a crucial role in ecosystems, yet we know little about how microbial diversity influences ecosystem functioning. An important gap in our understanding is how environmental change affects microbial Biodiversity-Ecosystem Function relationships (BEF). These complex interactions between microbial biodiversity and ecosystem function can influence major biogeochemical processes, such as the nitrogen cycle in wetland ecosystems, which play an important role in managing wastewater. To address the effect of biodiversity on function, my study investigates the BEF relationships between microbial diversity and the function in terms of ammonia removal from wastewater at the Arcata Wastewater Treatment Facility (AWTF) both …
Rick Husband's Journey To The American Astronaut Corps, Tyler Peterson
Rick Husband's Journey To The American Astronaut Corps, Tyler Peterson
East Texas Historical Journal
No abstract provided.
Community Development Through Career And Technical Education In The U.S. Education System For A Higher American Standard Of Living, Marty Stuart Asbridge
Community Development Through Career And Technical Education In The U.S. Education System For A Higher American Standard Of Living, Marty Stuart Asbridge
Online Theses and Dissertations
The evolution of the public education system to include more career and life readiness skills should be a central matter of focus to education policymakers across the United States by improving the planning, implementation, and evaluation of Career and Technical Education programs. This is because improving the societal standard of living relies on proper Community Development, through the framework of developing the potential quality of America’s most vital human capital, its students entering the workforce. In its current state Career and Technical Education is an important but underdeveloped program set to accomplish building student skills in work ethics and administrative …
Tholins: A Gas Phase Computational Study Of Methanimine And Related Species, Bradley T. Chem
Tholins: A Gas Phase Computational Study Of Methanimine And Related Species, Bradley T. Chem
Online Theses and Dissertations
Titan has been referred to as the “gem of the Solar System.” This significance comes from its dense atmosphere, which is the only atmosphere in our Solar System other than Earth’s that is dense enough to produce a hydrological cycle (or methanological cycle, in the case of Titan). Scientists in the fields of astrobiology and astrochemistry believe that Titan’s current atmospheric conditions could resemble that of the primordial Earth, and as such is being studied to further our understanding of how life forms. While Titan’s atmosphere contains an abundance of organic molecules, methanimine (MA) and it’s related species the methyl …
Phenotypic Plasticity Of Geographically Central And Peripheral Populations Of Jefferson Salamanders (Ambystoma Jeffersonianum) In Response To Simulated Climate Change, Aaron Devine
Online Theses and Dissertations
Climate change will elicit various species responses as it causes habitats to change. Species with limited dispersal must respond to these changes “in place”, yet some biogeographical hypotheses indicate isolated and less abundant populations experience reduced gene flow and genetic diversity that may limit phenotypic plasticity, contrasting with evidence suggesting more variable habitats select for increased plasticity in peripheral populations. To gain insight into associations between range position and intensity of plasticity, mesocosm experiments were done to assess plasticity in larval growth, size at, and time to, metamorphosis, and survivorship in larval Ambystoma jeffersonianum salamanders from geographically core and peripheral …
How And Why Design Education Instructors Use Place-Based Education In Their Courses, Michael Flynn
How And Why Design Education Instructors Use Place-Based Education In Their Courses, Michael Flynn
Online Theses and Dissertations
Place-based education (PBE) is a pedological approach that takes learning outside of the classroom into the local community. Allowing students to not only explore their physical environments but also the history, people, and culture of a place. The purpose of this qualitative phenomenological study was to investigate the use of PBE by design education instructors in higher education. This focus on PBE in design education is significant because PBE has not been extensively examined in a design context. The results should extend knowledge about ways that local learning environments can create opportunities and experiences for design students that cannot be …
"I Could Not Understand Anything They Said!": Non-Native English Speaking Instructors, Online Learning, And Student Anxiety, Katelyn Lee Mcclure
"I Could Not Understand Anything They Said!": Non-Native English Speaking Instructors, Online Learning, And Student Anxiety, Katelyn Lee Mcclure
Online Theses and Dissertations
Non-native English speaking (NNES) instructors are often rated lower within course evaluations and are typically criticized for their accents (Rubin, 1992; Subtirelu, 2015). Reasonings behind this have not been researched much in terms of online education, though the relevance of this topic is continuing to grow through online learning. The current experiments aim to determine if the presence of an NNES accent causes more learning anxiety compared to an instructor with a standard American accent. Two experiments were conducted to gauge participants’ anxiety level and learning performance. In both experiments, participants were given a set of four videos divided into …
Investigating A State-Funded Disciplinary Literacy Program In Kentucky For Educators Of Adolescent Students, Kevin Presnell
Investigating A State-Funded Disciplinary Literacy Program In Kentucky For Educators Of Adolescent Students, Kevin Presnell
Online Theses and Dissertations
This case study describes a professional learning opportunity for educators of adolescents, namely the Literacy for Adolescent Teachers (LAT), at a regional midsize university in Kentucky. The LAT is a year-long experience that enrollees undertake to grow professionally by gaining specific literacy skills. This study focuses specifically on participant experience with the disciplinary literacy content, strategies, and resources presented at the summer program. This investigation sought to understand if participation in the disciplinary literacy program impacted the participants’ perceptions of literacy and their dispositional attitudes toward integrating literacy into their professional practice. The data revealed that participants in the LAT …
The Road To Justice: Incarcerated Students’ View On Education Behind Bars, Margaret Baker Price
The Road To Justice: Incarcerated Students’ View On Education Behind Bars, Margaret Baker Price
Online Theses and Dissertations
The experience of students that are incarcerated is largely unknown. This qualitative phenomenological research study allowed four college students that are incarcerated to share their experiences. Research shows individuals who are incarcerated are less likely to reoffend this study upon release. This study will show how these individuals view their educational experience during incarceration. Interviews were conducted with each participant and data was coded and organized into themes. By utilizing a phenomenological stance, observations were made of events that led to the placement of participants in the prison system and how education has impacted their time spent incarcerated. Themes discovered …
Chromatographic Studies Of Some Hormone And Metabolic Modulators Used For Doping In Sports, Ruth Marie Speidel
Chromatographic Studies Of Some Hormone And Metabolic Modulators Used For Doping In Sports, Ruth Marie Speidel
Online Theses and Dissertations
The World Anti-Doping Agency (WADA) is an international agency that monitors the use of Performance Enhancing Drugs (PEDs) in sports; their mission is “to lead a collaborative worldwide movement for doping-free sport” (Who We Are, 2022). For this mission, the WADA needs quick, sensitive, reproducible, and accurate methods for analyzing athletes’ biological fluids for possible PEDs. This research focuses on developing and validating simple, sensitive, rapid, and reliable gas chromatography- mass spectrometry (GC-MS) methods for the analysis of two hormone and metabolic modulators, toremifene and trimetazidine. Previously, there has been limited GC-MS methods used to analyze toremifene and trimetazidine. Quantification …
The Impact That The Power Scholars’ Academy Program Has On The Achievement Of Students In Reading And Math, Sharonda Steele
The Impact That The Power Scholars’ Academy Program Has On The Achievement Of Students In Reading And Math, Sharonda Steele
Online Theses and Dissertations
The purpose of the study is to examine the impact of a summer learning loss prevention program that is designed to improve the academic achievement gap. The target population for this research study was participants of the Power Scholars Academy (PSA) program. PSA is a collaboration of BellXcel, local school districts, and community organizations. BellXcel as the creator of the program, provided the curriculum for extended learning opportunities during out of school time. For this study, BellXcel partnered with the school district located in the second largest county in the Commonwealth of Kentucky. The study analyzed 1,567 students who participated …
An Examination Of Print Awareness When Using Electronic And Printed Books With Preschool-Aged Children, Marissa Taylor
An Examination Of Print Awareness When Using Electronic And Printed Books With Preschool-Aged Children, Marissa Taylor
Online Theses and Dissertations
With growing numbers of online and electronic learning formats, it has become increasingly more crucial to consider literacy development and written language exposure in preschool-aged students. Emergent literacy, which includes print awareness, is a key element of future reading success. The following study aimed to examine children’s print awareness skills through dialogic reading using both printed and ebook formats. During this study, five participants were selected from a local, private preschool and participated in a weeklong study in which they were read to dialogically with specific prompts concerning print awareness skills for a one-on-one intervention. During the initial session, a …
Light Trapping Transparent Electrodes, Mengdi Sun
Light Trapping Transparent Electrodes, Mengdi Sun
Electronic Theses and Dissertations, 2020-2023
Transparent electrodes represent a critical component in a wide range of optoelectronic devices such as high-speed photodetectors and solar cells. Fundamentally, the presence of any conductive structures in the optical path leads to dissipation and reflection, which adversely affects device performance. Many different approaches have been attempted to minimize such shadowing losses, including the use of transparent conductive oxides (TCOs), metallic nanowire mesh grids, graphene-based contacts, and high-aspect ratio metallic wire arrays. In this dissertation I discuss a conceptually different approach to achieve transparent electrodes, which involves recapturing photons initially reflected by highly conductive electrode lines. To achieve this, light-redirecting …
Change Point Detection For Streaming Data Using Support Vector Methods, Charles Harrison
Change Point Detection For Streaming Data Using Support Vector Methods, Charles Harrison
Electronic Theses and Dissertations, 2020-2023
Sequential multiple change point detection concerns the identification of multiple points in time where the systematic behavior of a statistical process changes. A special case of this problem, called online anomaly detection, occurs when the goal is to detect the first change and then signal an alert to an analyst for further investigation. This dissertation concerns the use of methods based on kernel functions and support vectors to detect changes. A variety of support vector-based methods are considered, but the primary focus concerns Least Squares Support Vector Data Description (LS-SVDD). LS-SVDD constructs a hypersphere in a kernel space to bound …
Search Space Reduction Techniques For Solution Of Combinatorial Optimization Problems In Power System., Ranadhir Sarkar
Search Space Reduction Techniques For Solution Of Combinatorial Optimization Problems In Power System., Ranadhir Sarkar
Electronic Theses and Dissertations, 2020-2023
Power system is vulnerable to disastrous climate events due to sequential or successive equipment failure. In this dissertation, the problem of identifying the critical k-transmission lines that fail one after another in quick succession, and the distribution system restoration problem using tie-lines/sectionalizing switches formulated as a mixed-integer non-linear programming problem (MINLP) that determines load shed under various k-line removal scenarios are solved. These problems are combinatorial that have huge search space, and solution through enumeration is intractable for large power systems. For reduction of search space, the following mathematical tools are derived, (i) two power flow methods due to k-transmission …
Optimization-Based Approaches To Low-Coherence Optical Diffraction Tomography, Seth Smith-Dryden
Optimization-Based Approaches To Low-Coherence Optical Diffraction Tomography, Seth Smith-Dryden
Electronic Theses and Dissertations, 2020-2023
Quantitative optical phase imaging techniques, such as optical diffraction tomography (ODT), are useful tools for refractive-index profiling. Many of them, however, rely on the weak-scattering assumptions, thus cannot be applied to multiple-scattering objects, or turbid media. In this thesis, I report several approaches for expanding the efficacy of ODT techniques and adapting them to new applications by use of low-coherence broadband illumination. First, I developed a method for ODT reconstruction using regularized convex optimization with a new phase-based fidelity criterion. The new criterion is necessary because objects with very different refractive-index distributions may produce similar diffracted fields (magnitude and principal-phase) …
The Fine Spectral Tuning Of Plasmon Mode And Quantum Emitter Coupling And Itscomparison With The Dark-Hot Resonances, Hira Asif, Rasi̇m Volga Ovali, Ramazan Şahi̇n
The Fine Spectral Tuning Of Plasmon Mode And Quantum Emitter Coupling And Itscomparison With The Dark-Hot Resonances, Hira Asif, Rasi̇m Volga Ovali, Ramazan Şahi̇n
Turkish Journal of Physics
Localization of incident fields into very small volumes (hot-spots) allows strong light-matter interactions at the hot spots. This makes path interference effects, Fano resonances, visible. Fano resonances can appear due to the coupling of a bright plasmon (i) to a longer lifetime dark plasmon mode or (ii) to a quantum object (QO) of a much longer lifetime. The second phenomenon provides a very important utility: the voltage tunability of the linear/nonlinear response. The level-spacing of the QO, such as defect-centers and quantum dots, are voltage-tunable which can make a sharp Fano resonance appear and disappear. Here, we compare the two …
Topical Review: Greybody Factors And Quasinormal Modes For Black Holes Invarious Theories - Fingerprints Of Invisibles, İzzet Sakalli, Sara Kanzi
Topical Review: Greybody Factors And Quasinormal Modes For Black Holes Invarious Theories - Fingerprints Of Invisibles, İzzet Sakalli, Sara Kanzi
Turkish Journal of Physics
We give a pedagogical introduction to black holes (BHs) greybody factors (GFs) and quasinormal modes (QNMs) and share the recent developments on those subjects. To this end, we present some particular analytical and approximation techniques for the computations of the GFs and QNMs. We first review the gravitational GFs and show how they are analytically calculated for static and spherically symmetric higher dimensional BHs, consisting the charged BHs and existence of cosmological constant (i.e. de Sitter (dS)/anti-de Sitter (AdS)AdS BHs). The computations performed involve both the low-energy (having real and small frequencies) and the asymptotic (having extremely high frequency of …
Extinction And Growth On An Inhomogeneous Seascape, Tung Tran, Mehran Kardar
Extinction And Growth On An Inhomogeneous Seascape, Tung Tran, Mehran Kardar
Turkish Journal of Physics
The effects of noise and nonuniformity on dynamics of populations are relevant and timely subjects of investigation. One form of variation is the time dependence of the reproduction rate (fitness), referred to as ?seascape? noise; another is time-independent intrinsic dependencies of fitness on location (in the parlance of statistical physics, corresponding to annealed and quenched disorder, respectively). The former was studied recently and demonstrated to lead to novel universality classes for extinction and growth. To reduce the gap between this theoretical model and reality, we develop a new formalism for seascape noise where growth and migration parameters are inhomogeneous. In …
Critical Dynamics In Biological Boolean Networks Follows From Symmetric Response To Input Genes, Hamza Çoban, Alkan Kabakçioğlu
Critical Dynamics In Biological Boolean Networks Follows From Symmetric Response To Input Genes, Hamza Çoban, Alkan Kabakçioğlu
Turkish Journal of Physics
A recent observation on an extensive collection of biological gene regulatory networks suggests that the regulatory dynamics is tuned to remain close to the order-chaos boundary in the Lyapunov sense [1]. We here investigate, from a mathematical perspective, the structural/functional constraints which give rise to such accumulation around criticality in these systems. While the role of canalizing functions in this respect is well established, we find that critical sensitivity to small input variations also follows from an over-abundance of symmetrical inputs, i.e. regulatory genes invoking identical or complementary responses on their common target. A random network ensemble constructed to have …
Dissolution Of Alumina In Cryolite Melts: A Conceptual Dft Study, Ali̇met Sema Özen, Zehra Akdeni̇z
Dissolution Of Alumina In Cryolite Melts: A Conceptual Dft Study, Ali̇met Sema Özen, Zehra Akdeni̇z
Turkish Journal of Physics
Interactions between alumina and cryolite clusters were investigated using chemical reactivity descriptors based on Conceptual DFT such as global hardness, $\eta$, global softness, $S$, fukui functions, $f$, and local softness, $s$. Hard and Soft Acids and Bases (HSAB) Principle was applied for identifying clusters that are most likely to interact with alumina, Al$_2$O$_3$. Local reactivity descriptors were employed to predict the most probable regions of interaction within the cluster.
Improving The Holographic Recording Characteristics Of A Water-Resistant Photosensitive Sol–Gel For Use In Volume Holographic Optical Elements, Brian Rogers, Tatsiana Mikulchyk, Mohamed Oubaha, Dervil Cody, Suzanne Martin, Izabela Naydenova
Improving The Holographic Recording Characteristics Of A Water-Resistant Photosensitive Sol–Gel For Use In Volume Holographic Optical Elements, Brian Rogers, Tatsiana Mikulchyk, Mohamed Oubaha, Dervil Cody, Suzanne Martin, Izabela Naydenova
Articles
Continual improvements to holographic recording materials make the development of volume holographic optical elements increasingly more attainable for applications where highly efficient, lightweight diffractive optical elements can replace conventional optics. A fast-curing, water resistant photosensitive sol–gel capable of volume holographic recording has recently drawn attention for its extreme environmental and physical robustness, in particular its water/moisture and scratch resistance. However, to date, the refractive index modulation has been limited. While water-resistant properties are invaluable in the face of the weathering which many practical systems for outdoor applications will endure, high refractive index modulation is also important in order to facilitate …
Optimized Parameter Of Dissimilar Joining Between Al6061-T6 And Height-Strength Steel With Friction Stir Spot Welding Process (Fssw), Anusak Silachai, Suriya Prasomthong
Optimized Parameter Of Dissimilar Joining Between Al6061-T6 And Height-Strength Steel With Friction Stir Spot Welding Process (Fssw), Anusak Silachai, Suriya Prasomthong
Journal of Metals, Materials and Minerals
High-strength steel and aluminum alloys are used to manufacture modern vehicles. The objective was to reduce the weight and fuel consumption of the vehicles. In this study the optimum parameters for the friction stir spot welding (FSSW) process between Al6061-T6 aluminum alloy and HSS590 high-strength steel were determined. Response surface methodology based on central composite design (CCD) with three parameters, five levels, and 19 runs was used to conduct experiments and develop mathematical regression models. The three joint parameters were tool speed, welding feed, and dwell time. Analysis of variance was then performed to examine the adequacy of the developed …
Mineralogical Studies And Optimization Of Tabling Parameters Of Low Grade Chromite Ore By Box Behnken Design Of Experiments, Amit Kumar Bhandary, Siddhartha Mukherjee, Rajib Dey, Mahua Ghosh Chaudhuri
Mineralogical Studies And Optimization Of Tabling Parameters Of Low Grade Chromite Ore By Box Behnken Design Of Experiments, Amit Kumar Bhandary, Siddhartha Mukherjee, Rajib Dey, Mahua Ghosh Chaudhuri
Journal of Metals, Materials and Minerals
Chromite ore is geologically associated with gangue materials which have lower density compared to pure chromite (FeO.Cr2O3). Gravity separation techniques are very suitable for beneficiation of low grade chromite ore. In the present study mineralogical analysis of the sample has been carried out by using Wavelength dispersive x-ray fluorescence (WDXRF), X-ray powder diffraction (XRD), Scanning electron microscopy (SEM) and Energy dispersive X-ray (EDX). The beneficiation of low grade (Cr2O3% 26.88) chromite ore has been investigated using wilfley table. Optimization has been carried out using box-behnken statistical design (BBD). The experimental parameters selected are: tilt angle, water flow rate and pre-heat …
Decreased Photosynthetic Efficiency In Response To Site Translocation And Elevated Temperature Is Mitigated With Lps Exposure In Porites Astreoides Symbionts, Tyler E. Harman, Briana Hauff-Salas, Joshua A. Haslun, James M. Cervino, Kevin Strychar
Decreased Photosynthetic Efficiency In Response To Site Translocation And Elevated Temperature Is Mitigated With Lps Exposure In Porites Astreoides Symbionts, Tyler E. Harman, Briana Hauff-Salas, Joshua A. Haslun, James M. Cervino, Kevin Strychar
Open Access Publishing Support Funded Articles
Coral reefs have been detrimentally impacted causing health issues due to elevated ocean temperatures as a result of increased greenhouse gases. Extreme temperatures have also exacerbated coral diseases in tropical reef environments. Numerous studies have outlined the impacts of thermal stress and disease on coral organisms, as well as understanding the influence of site-based characteristics on coral physiology. However, few have discussed the interaction of all three. Laboratory out-planting restoration projects have been of importance throughout impacted areas such as the Caribbean and southern Florida in order to increase coral cover in these areas. This study analyzes photosynthetic efficiency of …