Physical Sciences and Mathematics Commons^™

Global Existence And Growth Of Solutions To Coupled Degeneratly Damped Klein-Gordon Equations, Fatma Ekinci, Erhan Pişkin

Al-Qadisiyah Journal of Pure Science

We study a system of nonlinear Klein-Gordon equations with viscoelastic and degenerate damping in a bounded domain. We prove the global existence and exponential growth of solutions with negative initial energy.

The Cyclic Decomposition Of Cf(Q_4q×C_5)/ R ̅(Q_4q×C_5), Naseer Rasool Albakaa, Habeeb Kareem Al-Bdairi, Neeran Tahir Abd Alameer

Al-Qadisiyah Journal of Pure Science

In this paper, we propose the cyclic decomposition of the factor group , and the group is Z-valued class functions of the direct product group under the operation of addition, and is the subgroup of the generalized characters of the group .Then is an abelian factor group denoted by where is the quaternion group of order and is the cyclic group of order . Also, we find the rational valued characters table of the group when is prime numbers is given as follows

The Numerical Solution For Solving Nth Order Integro-Differential Equations Via Boubaker Scaling Functions, Eman Hassan Ouda

Al-Qadisiyah Journal of Pure Science

In this paper, the continuous Boubaker scaling functions were constructed with the presentation on the interval [0,1], which obtained depending on Boubaker polynomials. In this current study the Boubaker scaling polynomial has been applied for solving the nth order integro–differential equations (IDE’s). The collocation method with the aid of Boubaker scaling functions together were utilized to transform the higher order integro–differential equations into a problem of linear system algebraic equations. Some numerical examples were added to show the simplicity and accuracy of the proposed technique. The results have been compared with the exact solution using Matlab and illustrated by graphs.

Some Properties Of Almost Periodic Points In A Random Dynamical System, Qays Arif Wali, Ihsan Jabbar

Al-Qadisiyah Journal of Pure Science

The aim of this paper is to study of almost periodic points in random dynamical systems. Some of their characteristics were studied and theirs highlighted relationship with someconcepts in random dynamical systems such as periodic points as well as minimalset

Generalized Permuting Tri-Derivations On Lattices, Mazen Omran Karim

Al-Qadisiyah Journal of Pure Science

In this paper , we present the notion of generalized permuting tri – derivations in lattices and looking for some related properties .

On Colc Topologies, Reyadh Delfy Ali, Omlsad Adgheem Ali

Al-Qadisiyah Journal of Pure Science

The purpose of this work is to continue the study of Co topologies and offer new characteristics of CoLC topologies and examine their relationships with other classes of topological spaces.

Sets And Functions In Terms Of Local Function, Shyamapada Modak, Sk Selim, Md Monirul Islam

Al-Qadisiyah Journal of Pure Science

In this paper, a collection of sets are investigated in such a way that the collection splits in the collection of preopen sets and the collection of b-open sets and also splits in the collection of semi-open sets and the collection of b-open sets. Functions in terms of this sets is a part of this paper and it will be considered that these collection remains invariant under homeomorphic image.

Correlation And Comparison Of Some Trace Elements And Their Related Proteins In Type 2 Diabetes Mellitus In Kalars City/ Kurdistan-Iraq., Hero Helal Muhammed Saed, Zeyan Abdullah Ali

Al-Qadisiyah Journal of Pure Science

The serum levels of trace elements alterations have been linked with Type 2 Diabetes mellitus (T2DM) and its complication. The Objectives of this study is to detect the correlation relationbetween serum Chromium (Cr), Magnesium (Mg), Zinc (Zn), Copper (Cu), and Iron (Fe) with Fasting Blood Sugar (FBS) in patients with type two diabetes mellitus, also to study the comparison of Ferroxidase, Transferrin, and Total iron binding capacity in patients with type two diabetes mellitus with control groups. A total of forty subjects were included in this study, they were divided in two groups (control and diabetic patients). Fasting blood samples …

Effect Of Spraying Humic Acid And Salicylic Acid On Potato Leaf Area, Yield And Quality At Two Different Levels Of Field Capacity, Hadia Hassan, Sawsan Suleiman, Maher Ali Dais

Al-Qadisiyah Journal of Pure Science

Abstract: This study was carried out at Al-Hanadi Research Station -Agricultural Scientific Research Center in Lattakia during 2019-2020, to study the effect of foliar spray with different concentrations of humic acid (500, 1000 and 1500 ppm) and salicylic acid (50, 100 and 150 ppm) on Spunta potato plants at two levels of irrigation 40% and 80% of field capacity. The experiment included 14 treatments and 3 replicates for each one. It was designed with a complete randomization system. Results showed a decrease in vegetative surface area and yield kg/m2 at irrigation level 40% of field capacity, while tubers content of …

Physical And Chemical Changes In Water Resulting From Contamination With Heavy Metals, Mohammed Khalif Challab

Al-Qadisiyah Journal of Pure Science

Nanoparticle in each model can be damage to water quality. This study is about nanometal in water that damaged to its quality. Metal divided to layers that electrical shock can lead to dividing of them. In different model in about temperature, Energy and different layer, quality of water be measured. Temperature has reverse relation with water quality. The best temperature to electrical shock in (-20) ̊C. electrical shock has direct effect on quality of water. In total investigation on all layers, electrical shock damaged to all layers and bridging phenomena be occurred in particle that can removed from water. With …

The Refractive Index Of Photonic Crystal Fibers As A Function Of Some Parameters And Temperature, Mohammed Altaie

Al-Qadisiyah Journal of Pure Science

Photonic crystal fibers in the late period occupied a wide range of studies and research because of the ease of dealing with them in terms of design and installation, as there is a group of parameters used in them that can affect the refractive index of the pulse propagation through it, including the diameter of the air holes, the distance between the air holes and their number, as this study showed in addition to the aforementioned parameters The effect of temperature on the refractive index was also studied. It has been observed that with an increase in the diameter of …

A Comparative Study Of Combining Deep Learning And Homomorphic Encryption Techniques, Emad M. Alsaedi, Alaa Kadhim Farhan

Al-Qadisiyah Journal of Pure Science

Deep learning simulation necessitates a considerable amount of internal computational resources and fast training for large amounts of data. The cloud has been delivering software to help with this transition in recent years, posing additional security risks to data breaches. Modern encryption schemes maintain personal secrecy and are the best method for protecting data stored on a server and data sent from an unauthorized third party. However, when data must be stored or analyzed, decryption is needed, and homomorphic encryption was the first symptom of data security issues found with Strong Encryption.It enables an untrustworthy cloud resource to process encrypted …

Secure Communication Scheme Based On A New 3-D Jerk Chaotic System, Zain-Aldeen S.A. Rahman, Basil H. Jasim, Ehsan Alhamdawee

Al-Qadisiyah Journal of Pure Science

Chaos theory plays a significant role in the engineering fields and especially in the security of data transmission in communication systems. In this paper, a new 3-D jerk chaotic system has been suggested. The fundamental dynamical properties, including the fixed points, chaotic attractors, bifurcation diagrams, and Lyapunov exponents are investigated. In communication systems, data security and the implementation of designed transceivers of secure communication scheme can be considered the main challenge for applying such systems. In this work, a 3-D new jerk chaotic scheme has been proposed to be used in data encryption of communication systems. The proposed jerk chaotic …

Environmental And Diagnostic Study Of Some Parasites In Barbus Xanthopterus Fish Of Al-Diwaniyah River, Abtisam Jasim Abbas

Al-Qadisiyah Journal of Pure Science

The current study was concerned with investigating parasitic infections in Barbus Xanthopterus fish in Al-Diwaniyah River, for the period (July 2020-December 2020). (218) fish were collected from three different locations along the Al-Diwaniyah River. The results of the laboratory examination indicated that the fish were infected with the parasite Chilodonella Cyprinid and Eimiria sinenis. The current study recorded changes in the physical and chemical properties of Al-Diwaniyah River water, as the water temperature values, measured turbidity values, pH, electrical conductivity, hardness and TDS recorded a clear variation during the months of the study. The results of the statistical analysis indicated …

Castor (Ricinuscommunis) And Sesame (Sesamumindicum) Biodiesel Optimization By Alkaline Na+/K+ Catalytic Conversion., Aliru Olajide Mustapha, Kamarudeen Seun Akanji, Adebola Christianah Akala, Ebenezer Sola Daramola, Mercy Mobolaji Ajala, Fatimah Yetunde Ajao, Salihu Folorunsho Adisa, Mubarak Bolakale Abdullahi

Al-Qadisiyah Journal of Pure Science

For the optimization of refined castor biodiesel (RCB) and refined sesame biodiesel (RSB), the impacts of specified conditions such as catalyst types (NaOH and KOH), catalyst concentration (0.3–1.5 wt. %), speed (500–750 rpm), and time (20–60 min) were investigated. The physicochemical properties of the RCB and RSB were measured using the American Standard for Testing Materials (ASTM) approved protocols for acid, peroxide, iodine, and saponification; density, kinematic viscosity, and refractive index value. Box–Behnken Design's Response Surface Methodology(RSM) was also used for optimization. The results for four optimization methods were catalyst concentration (0.300–0.435 wt. %), speed (500.000–643.242 rpm), and time (20.000–31.386 …

Diabetic Retinopathy Recognition System Based On Gldm Features And Feed-Forward Neural Network Classifier., Entesar B. Talal, Eman Thabet

Al-Qadisiyah Journal of Pure Science

Detection and recognition of DR at the early phase can prevent the risk of gradual damage in the retina and vision loss. Many works have been introduced for automatic DR recognition and diagnosis in recent years. To date, there are still some issues that are required to work on to improve the quality and the performance of automatic DR recognition systems. Therefore, this paper introduces a machine learning based approach for DR diagnosis and recognition by proposing texture analysis features of GLDM technique and feed-forward neural network classifier. The proposed method has achieved a recognition accuracy of 95% according to …

Ignoring Species Availability Biases Occupancy Estimates In Single-Scale Occupancy Models, Graziella V. Direnzo, David A. W. Miller, Evan H. C. Grant

United States Geological Survey: Staff Publications

1. Most applications of single-scale occupancy models do not differentiate between availability and detectability, even though species availability is rarely equal to one. Species availability can be estimated using multi-scale occupancy models; however, for the practical application of multi-scale occupancy models, it can be unclear what a robust sampling design looks like and what the statistical properties of the multi-scale and single-scale occupancy models are when availability is less than one.
2. Using simulations, we explore the following common questions asked by ecologists during the design phase of a field study: (Q1) what is a robust sampling design for the multi-scale occupancy …

Characterizations Of Certain Classes Of Graphs And Matroids, Jagdeep Singh

LSU Doctoral Dissertations

``If a theorem about graphs can be expressed in terms of edges and cycles only, it probably exemplifies a more general theorem about matroids." Most of my work draws inspiration from this assertion, made by Tutte in 1979.

In 2004, Ehrenfeucht, Harju and Rozenberg proved that all graphs can be constructed from complete graphs via a sequence of the operations of complementation, switching edges and non-edges at a vertex, and local complementation. In Chapter 2, we consider the binary matroid analogue of each of these graph operations. We prove that the analogue of the result of Ehrenfeucht et. al. does …

Developing The Next Generation Of Heterogeneous Catalysts: Metal-Organic Framework Thin Films And Their Derivatives, Hans Christian Anderson

Theses and Dissertations

Metal-Organic Frameworks (MOFs) are an important class of materials that are gaining increasing relevance for many fields including energy storage, CO2 capture, photovoltaics, and catalysis. MOF mediated synthesis (MOFMS) is the decomposition of a MOF to form an amorphous carbon material decorated with metal nanoparticles. MOF thin films are an area where MOFMS has not been thoroughly explored, yet they are likely to be industrially relevant due to their potential application as highly dispersed, sinter resistant supported catalysts. In this work, we have developed a method for the growth of copper- and zinc-based MOF thin films on silicon- and aluminum- …

The Effect Of Fluorinated Substitution Of Meso Phenyl Porphyrins On Porphyrin Basicity, Harsh Chheda, Rushi Patel, Maria Ballester, Victor Castro

Chemistry and Physics Faculty Proceedings, Presentations, Speeches, Lectures

The purpose of this study was to determine the effects of fluorinated substitution of meso phenyl porphyrins on porphyrin basicity. The protonation of meso-Tetra(2,3,4-trifluoromethylphenyl) porphyrin (TF) and meso-Tetra(pentafluorophenyl) porphyrin (PF) will be studied through UV vis spectroscopy. Protonation is achieved by titration of each porphyrin in toluene with trifluoroacetic acid (TFA). The presence of a wavelength shift from the free base Soret to the protonated Soret will indicate the formation of a dication. The data from the UV spectra will be used to calculate the pKa values associated with each porphyrin. Based on the results, the average pKa for TF …

Limited Opportunities And Numerous Barriers To Ocean Science Careers In Under-Resourced Nations, Tashiana Osborne, Charitha Pattiaratchi, Erin L. Meyer-Gutbrod

Faculty Publications

No abstract provided.

Intra-Hour Solar Forecasting Using Cloud Dynamics Features Extracted From Ground-Based Infrared Sky Images, Guillermo Terrén-Serrano

Electrical and Computer Engineering ETDs

Due to the increasing use of photovoltaic systems, power grids are vulnerable to the projection of shadows from moving clouds. An intra-hour solar forecast provides power grids with the capability of automatically controlling the dispatch of energy, reducing the additional cost for a guaranteed, reliable supply of energy (i.e., energy storage). This dissertation introduces a novel sky imager consisting of a long-wave radiometric infrared camera and a visible light camera with a fisheye lens. The imager is mounted on a solar tracker to maintain the Sun in the center of the images throughout the day, reducing the scattering effect produced …

Modeling The Effects Of Surface Roughness On Electron Yield, Trace Taylor, Matthew Robertson, Jr Dennison

Conference Proceedings

Surface conditions—including surface morphology, composition, contamination, and oxidation—can significantly affect electron yields and consequently spacecraft charging. The effects of surface roughness on electron yield are modeled in this study by considering four aspects of electron yield calculations: (i) simple models of rough surface geometry, (ii) the angular distributions of electrons emitted from various points on these surfaces, (iii) the likelihood of these emitted electrons escaping the rough surface, and (iv) the relative fractions of smooth and rough surfaces. Three simple periodic one-dimensional surface profiles were considered—namely rectangular, triangular, and sawtooth features; each surface profile was characterized by an aspect ratio …

Simulation Of The Nonlinear Dynamics Of A Spherical Magnet In The Field Of A Second Stationary Magnet, Luke Price

Student Research Symposium

We developed a 4th order Runge-Kutta program for the problem of two uniformly magnetized spheres, one sphere orbiting a second stationary sphere, by means of their magnetic fields. There are four coupled ordinary differential equations that describe the motion of the orbiting magnet. We graphed the solutions to these equations for a range of initial conditions and determined the chaotic indicator called the Lyapunov exponent (LE) in each case. A graph of the potential energy was also made. We look at the numerical values and graphs of the four equations and see how much they differ for a range of …

The Effect Of Temperature Fluctuation On Magnetometer Readings, Brittany Payne

Student Research Symposium

The SAM-III is a 3-axis, simple aurora magnetometer that can be used to sense and study geomagnetic fluctuations. These fluctuations can provide information about auroras, solar flares, geomagnetic storms, or radio waves, among others. In line with the manufacturer’s goals of expanding a worldwide, amateur magnetometer network, one of these magnetometers is being stationed at Utah State University. This experiment specifically looks at how temperature fluctuations affect the accuracy of the magnetometer’s measurements. These results will help determine to what extent the magnetometer can be used to gather useful data and as well as decide where it should be stationed …

When Should Young Married Couples Have Children?, Morgan Anderton

Student Research Symposium

There are many young married couples who are trying to plan out their lives; one thing they’re deciding is the best time to have children. There are many things to consider when planning for a family, such as, finances, fertility rates, mental preparedness and many others. This research aims to break down these aspects of planning for a family to decide when the best time, for young married couples, is to have children. Research was studied from academic databases, interviews from mothers, therapists, and parenting blogs that provided many points of views on when to start a family. From this …

Giant Earthquakes' Effects On The Ionosphere, Aaron Houston

Student Research Symposium

The ionosphere is a part of the Earth’s atmosphere that stretches from 80 – 600 kilometers. Gases in this area are ionized which creates a range of free electrons that make up the plasma of the ionosphere. Integrating the electron density along a line between two points will give you the Total Electron Content (TEC), which is responsible for signal delays between satellites in orbit and their GPS receivers on the surface. Using this delay, the TEC in a specific region can be calculated which helps in GPS error analysis. During the earthquake in Japan on March 11, 2011, there …

The Death Penalty Is A Viable Punishment, Zane Hirning

Student Research Symposium

The death penalty is a penalty that is worthy of heinous perpetrators. Heinous crimes will be committed, and often, the perpetrator is given a punishment unworthy of the crime committed. This causes a low-risk factor when committing the crime. This can cause issues for many, including the victim’s family. The lack of worthy punishment can affect the victim's family, and it may result in outrage against the public, or a personal attack on the perpetrator or the perpetrator’s family. This creates a violent environment that can lead to other American citizens being hurt because the victim’s family took their own …

State Estimation—The Role Of Reduced Models, Albert Cohen, Wolfgang Dahmen, Ron Devore

Faculty Publications

The exploration of complex physical or technological processes usually requires exploiting available information from different sources: (i) physical laws often represented as a family of parameter dependent partial differential equations and (ii) data provided by measurement devices or sensors. The amount of sensors is typically limited and data acquisition may be expensive and in some cases even harmful. This article reviews some recent developments for this “small-data” scenario where inversion is strongly aggravated by the typically large parametric dimensionality. The proposed concepts may be viewed as exploring alternatives to Bayesian inversion in favor of more deterministic accuracy quantification related …

Desertification Risk Analysis For Wildlife In The Desert Renewable Energy Conversation Plan Area Of California, Serdar Sagdic

USF Tampa Graduate Theses and Dissertations

Desertification is one of the primary threats facing the sustainability of the Earths’s natural resources. Desertification it is an outcome of human impacts to ecosystems and alterations of climate patterns resulting in land degradation and adverse effect on natural resources, vegetation loss, soil infertility, and water scarcity. These changes influence the existence and distribution of wildlife by reducing the availability and quality of habitat that provides food, water, cover, and other life requisites. Therefore, this study aimed at evaluation of potential desertification risks on wildlife species in the Desert Renewable Energy and Conservation Plan (DRECP) area of California.

The DRECP …