Digital Commons Network^™

H2 Oxidation Over Supported Au Nanoparticle Catalysts: Evidence For Heterolytic H2 Activation At The Metal-Support Interface, Todd N. Whittaker, K. B. Sravan Kumar, Christine Peterson, Meagan N. Pollock, L. C. Grabow, Bert D. Chandler

Chemistry Faculty Research

Water adsorbed at the metal-support interface (MSI) plays an important role in multiple reactions. Due to its importance in CO preferential oxidation (PrOx), we examined H₂ oxidation kinetics in the presence of water over Au/TiO₂ and Au/Al₂O₃ catalysts, reaching the following mechanistic conclusions: (i) O₂ activation follows a similar mechanism to that proposed in CO oxidation catalysis; (ii) weakly adsorbed H₂O is a strong reaction inhibitor; (iii) fast H₂ activation occurs at the MSI, and (iv) H₂ activation kinetics are inconsistent with traditional dissociative H₂ chemisorption on metals. Density …

Honors Oracle, December 2018, Marshall University Honors College

Honors Oracle

Marshall University’s Honors College newsletter

Isscm Newsletter, December 1, 2018, Raj Soin College Of Business, Wright State University

ISSCM Newsletters

A nine page newsletter from the Department of Information Systems and Supply Chain Management in the Raj Soin College of Business at Wright State University.

Iba Newsletter [December 2018], Communications Department, Iba

IBA News

No abstract provided.

Transient Solution Of An M/M/1 Retrial Queue With Reneging From Orbit, A. Azhagappan, E. Veeramani, W. Monica, K. Sonabharathi

Applications and Applied Mathematics: An International Journal (AAM)

In this paper, the transient behavior of an M/M/1 retrial queueing model is analyzed where the customers in the orbit possess the reneging behavior. There is no waiting room in the system for the arrivals. If the server is not free when the occurrence of an arrival, the arriving customer moves to the waiting group, known as orbit and retries for his service. If the server is idle when an arrival occurs (either coming from outside the queueing system or from the waiting group), the arrival immediately gets the service and leaves the system. Each individual customer in the orbit, …

An M^X/G(A,B)/1 Queue With Breakdown And Delay Time To Two Phase Repair Under Multiple Vacation, G. Ayyappan, M. Nirmala

Applications and Applied Mathematics: An International Journal (AAM)

In this paper, we consider an M^x /G(a,b)/1 queue with active breakdown and delay time to two phase repair under multiple vacation policy. A batch of customers arrive according to a compound Poisson process. The server serves the customers according to the “General Bulk Service Rule” (GBSR) and the service time follows a general (arbitrary) distribution. The server is unreliable and it may breakdown at any instance. As the result of breakdown, the service is suspended, the server waits for the repair to start and this waiting time is called as „delay time‟ and is assumed to follow general …

Approximate Analytical Solutions Of Space-Fractional Telegraph Equations By Sumudu Adomian Decomposition Method, Hasib Khan, Cemil Tunç, Rahmat A. Khan, Akhtyar G. Shirzoi, Aziz Khan

Applications and Applied Mathematics: An International Journal (AAM)

The main goal in this work is to establish a new and efficient analytical scheme for space fractional telegraph equation (FTE) by means of fractional Sumudu decomposition method (SDM). The fractional SDM gives us an approximate convergent series solution. The stability of the analytical scheme is also studied. The approximate solutions obtained by SDM show that the approach is easy to implement and computationally very much attractive. Further, some numerical examples are presented to illustrate the accuracy and stability for linear and nonlinear cases.

Thermoelastic Stress Analysis Of A Functionally Graded Transversely Isotropic Hollow Cylinder In Elliptical Coordinates, Tara Dhakate, Vinod Varghese, Lalsingh Khalsa

Applications and Applied Mathematics: An International Journal (AAM)

This paper is concerned with the axisymmetric thermoelastic problem to investigate the influence of nonlinear heat conduction equation, displacement functions and thermal stresses of a functionally graded transversely isotropic hollow cylinder that is presented in the elliptical coordinate system. The method of integral transform technique is used to produce an exact solution of the heat conduction equation in which sources are generated according to a linear function of the temperature. An explicit exact solution of the governing thermoelastic equation is proposed when material properties are power-law functions with the exponential form of the radial coordinate. Numerical calculations are also carried …

Quasi-Linearization Method With Rational Legendre Collocation Method For Solving Mhd Flow Over A Stretching Sheet With Variable Thickness And Slip Velocity Which Embedded In A Porous Medium, M. M. Khader

Applications and Applied Mathematics: An International Journal (AAM)

The quasi-linearization method (QLM) and the rational Legendre functions are introduced here to present the numerical solution for the Newtonian fluid flow past an impermeable stretching sheet which embedded in a porous medium with a power-law surface velocity, variable thickness and slip velocity. Firstly, due to the high nonlinearity which yielded from the ordinary differential equation which describes the proposed physical problem, we construct a sequence of linear ODEs by using the QLM, hence the resulted equations become a system of linear algebraic equations. The comparison with the available results in the literature review proves that the obtained results via …

Η-Ricci Soliton On 3-Dimensional F-Kenmotsu Manifolds, S. K. Hui, S. K. Yadav, S. K. Chaubey

Applications and Applied Mathematics: An International Journal (AAM)

The object of the present paper is to carry out η-Ricci soliton on 3-dimensional regularf-Kenmotsu manifold and we turn up some geometrical results. Furthermore we bring out the curvature conditions for which η-Ricci soliton on such manifolds are shrinking, steady or expanding. We wind up by considering examples of existence of shrinking and expanding η-Ricci soliton on 3-dimensional regularf-Kenmotsu manifolds.

Similarity Analysis Of Three Dimensional Nanofluid Flow By Deductive Group Theoretic Method, Hemangini Shukla, Hema C. Surati, M. G. Timol

Applications and Applied Mathematics: An International Journal (AAM)

The objective of this paper is to obtain similarity solution of three-dimensional nanofluid flow over flat surface stretched continuously in two lateral directions. Two independent variables from governing equations are reduced by applying deductive two parameter group theoretical method. Partial differential equations with boundary conditions are converted into ordinary differential equations with appropriate boundary conditions. Obtained equations are solved for temperature and velocity. The effect of nanoparticles volume fraction on temperature and velocity profile is investigated.

Fractional Order Thermoelastic Thick Circular Plate With Two Temperatures In Frequency Domain, Parveen Lata

Applications and Applied Mathematics: An International Journal (AAM)

The present investigation is concerned with thermomechanical interactions in the fractional theory of thermoelasticity for a homogeneous isotropic thick circular plate in the light of two-temperature thermoelasticity theory in frequency domain. The upper and lower surfaces of the thick plate are traction free and subjected to an axisymmetric heat supply. The solution is found by using Hankel transform technique and a direct approach without the use of potential functions. The analytical expressions of displacement components, stresses, conductive temperature, temperature change and cubic dilatation are computed in transformed domain. Numerical inversion technique has been applied to obtain the results in the …

Analysis Of Batch Arrival Bulk Service Queue With Multiple Vacation Closedown Essential And Optional Repair, G. Ayyappan, T. Deepa

Applications and Applied Mathematics: An International Journal (AAM)

The objective of this paper is to analyze an queueing model with multiple vacation, closedown, essential and optional repair. Whenever the queue size is less than , the server starts closedown and then goes to multiple vacation. This process continues until at least customer is waiting in the queue. Breakdown may occur with probability when the server is busy. After finishing a batch of service, if the server gets breakdown with a probability , the server will be sent for repair. After the completion of the first essential repair, the server is sent to the second optional repair with probability …

Numerical Studies For Mhd Flow And Gradient Heat Transport Past A Stretching Sheet With Radiation And Heat Production Via Dtm, Khadijah M. Abualnaja

Applications and Applied Mathematics: An International Journal (AAM)

This paper presents a numerically study for the effect of the internal heat generation, magnetic field and thermal radiation effects on the flow and gradient heat transfer of a Newtonian fluid over a stretching sheet. By using a similarity transformation, the governing PDEs can be transformed into a coupled non-linear system of ODEs with variable coefficients. Numerical solutions for these equations subject to appropriate boundary conditions are obtained by using the differential transformation method (DTM). The effects of various physical parameters such as viscosity parameter, the suction parameter, the radiation parameter, internal heat generation or absorption parameter and the Prandtl …

Illuminator, Volume 2, Issue 4, Batten College Of Engineering & Technology, Old Dominion University

College of Engineering & Technology Newsletter

December 2018 issue of Illuminator, a monthly publication of ODU's Batten College of Engineering and Technology.

Exploring The Link Between Genetics, Chronic Stress, And Depression, Michael Woller

Undergraduate Research and Creative Opportunities (URCO) Grant Program

Depression is a very debilitating mental illness that affects about 7% of the American Population [1] and up to about 350 million people worldwide [2]. Since the cause for depression and the reason why some individuals are more vulnerable than others are currently unclear, studying paradigms that model depression in animals, such as the learned helplessness paradigm, is useful to explore possible mechanisms and devise new treatments. To explore a possible link between genetics, chronic stress and depression, we have exposed mice vulnerable to stress to an inescapable forced swim paradigm. During the forced swim test, the mice were monitored …

A Content Analysis Of Visuals In Elementary School Textbooks, Daibao Guo, Katherine Landau Wright, Erin M. Mctigue

Literacy, Language and Culture Faculty Publications and Presentations

Although visual complexity is increasing and graphics are essential to support readers’ comprehension of disciplinary texts, visual literacy receives scant attention. Research suggests that effectively instructing students to interpret discipline-specific graphics would yield better comprehension. However, before this line of inquiry can be enacted, we must determine the characteristics of graphics in contemporary content textbooks. Therefore, this content analysis evaluated graphics within third- and fifth-grade science and social studies textbooks. We coded 3,844 graphics by type and function and compared findings between disciplines using chi-square and post hoc comparison tests. Overall, graphics were coded into 9 major types (photographs being …

Timber Talk, Vol. 56, No. 4, December 2018

Timber Talk: Nebraska Forest Industry Newsletter

In This Issue:

Lumber Market Reports

Hardwood Lumber Prices

NOTE FROM EDITOR: Transitioning to Electronic Delivery Only

NDA Expands EAB Quarantine

Forest Products Grants Available

Wildfires and Communities in Nebraska

Forest Industry Spotlight: “Good Neighbor Authority” in Nebraska

Trading Post

Timber Sales

Batch Arrival Bulk Service Queue With Unreliable Server, Second Optional Service, Two Different Vacations And Restricted Admissibility Policy, G. Ayyappan, R. Supraja

Applications and Applied Mathematics: An International Journal (AAM)

This paper is concerned with batch arrival queue with an additional second optional service to a batch of customers with dissimilar service rate where the idea of restricted admissibility of arriving batch of customers is also introduced. The server may take two different vacations (i) Emergency vacation-during service the server may go for vacation to an emergency call and after completion of the vacation, the server continues the remaining service to a batch of customers. (ii) Bernoulli vacation-after completion of first essential or second optional service, the server may take a vacation or may remain in the system to serve …

The Circular Restricted Four-Body Problem With Triaxial Primaries And Variable Infinitesimal Mass, Abdullah A. Ansari

Applications and Applied Mathematics: An International Journal (AAM)

This paper investigates the circular restricted four-body problem in which three primaries are taken as triaxial rigid body which are placed at the vertices of an equilateral triangle and the fourth infinitesimal body is varying its mass with time. We used the Jeans law to determine equations of motion and then evaluated the Jacobi integral. In the next section, we have performed the computational work to draw the graphs of the equilibrium points in different planes, zero velocity curves, surfaces and the Newton-Raphson basins of attraction with the variations of the triaxiality parameters. Finally, we have examined the linear stability …

Learning-Based Analysis On The Exploitability Of Security Vulnerabilities, Adam Bliss

Computer Science and Computer Engineering Undergraduate Honors Theses

The purpose of this thesis is to develop a tool that uses machine learning techniques to make predictions about whether or not a given vulnerability will be exploited. Such a tool could help organizations such as electric utilities to prioritize their security patching operations. Three different models, based on a deep neural network, a random forest, and a support vector machine respectively, are designed and implemented. Training data for these models is compiled from a variety of sources, including the National Vulnerability Database published by NIST and the Exploit Database published by Offensive Security. Extensive experiments are conducted, including testing …

Exploring Photo Privacy Protection On Smartphones, David Darling

Computer Science and Computer Engineering Undergraduate Honors Theses

The proliferation of modern smartphone camera use in the past decade has resulted in unprecedented numbers of personal photos being taken and stored on popular devices. However, it has also caused privacy concerns. These photos sometimes contain potentially harmful information if they were to be leaked such as the personally identifiable information found on ID cards or in legal documents. With current security measures on iOS and Android phones, it is possible for 3rd party apps downloaded from official app stores or other locations to access the photo libraries on these devices without user knowledge or consent. Additionally, the prevalence …

Financial Media And The Politics Of Difference: Argentine Histories Of The Greek Debt Crisis, 2010-2015, Marcos Mendoza Ph.D., Emily Warner

Journal of International and Global Studies

This article examines financial media discourses and representations of the Greek debt crisis from 2010 to 2015. The analysis is based on financial media texts published by six major news outlets in the United States and the United Kingdom. This paper argues that the AngloAmerican media generated a financial discourse of the Greek debt crisis based on an analogical framework to contemporary Argentina. The discussion highlights three aspects of this media discourse: the classification of the unfolding crisis type (liquidity, solvency, or political), the use of Argentine financial histories to understand the crisis type and predict its possible futures, and …

Voting In The Un General Assembly: Will It Affect The Aid From The United States?, Max Ratnikov Ph.D.

Journal of International and Global Studies

The aim of this article is to test the theory that the United States considers the policies of countries in need of international aid when deciding whether to provide economic or military aid to those countries . To test this hypothesis, this study statistically analyzes the votes cast in the UN General Assembly for the period of 2005 to 2014. On the basis of this analysis, some conclusions are drawn regarding the Ukraine’s attempt to receive assistance and probable causes as to why the theory may not hold for short time periods.

Functional Mobility For A Patient With Myelodysplastic Syndrome, Chronic Gvhd, And Corticosteroid Use: A Case Report, Alyssa Deardorff

Case Report Papers

Background: The use of corticosteroids to treat chronic graft-versus-host-disease (cGVHD) is common in oncological treatment. However, the long-term complications of cGVHD and prolonged use of corticosteroids have not been reported in terms of the benefits of physical therapy (PT) interventions. The purpose of this case report was to report the impact of PT interventions for an individual with a cancer diagnosis having received an allogenic-stem cell transplant (allo-SCT) with the long-term complications associated with cGVHD, long-term corticosteroid use, and cancer survivorship. Case Description: The patient was a 73-year-old male diagnosed with Myelodysplastic Syndrome and received an allo-SCT two years prior …

The Educational Convergence Of The U.S. And Mexico: Challenges And Possibilities, Javier C. Tapia Ph.D., Carla Dorn

Journal of International and Global Studies

Globalization and NAFTA led to a greater economic and social integration between the U.S. and Mexico. This integration led to continued Mexican migration to the U.S. contributing to Hispanic growth in the U.S. with resulting shortages in bilingual professionals. Building from public anthropology, we developed exchange projects in education and health between the two countries to meet the needs of the Mexican population and foster greater understanding between the two societies. Notwithstanding current strained political relations between the two countries, we expect NAFTA to survive in a revised form continuing the economic and social interdependency for this region of North …

Graduate News, Graduate School, Old Dominion University

Graduate News

December 2018 issue of Graduate News from the ODU Graduate School.

Pittsburg State University Annual Commencement, Dec 2018, Pittsburg State University

Commencement, 1903-Present

Program of undergraduate and graduate commencement exercises at Pittsburg State University on December of 2018

Decolorization Of Reactive Blue 4 Dye By Fenton Process Using Heterogeneous Fe/Sba-15 Catalyst, John C. Overton

Graduate Theses - Chemical Engineering

Remediation of textile wastewater, particularly concerning dyes, has been a longstanding concern. With the rise of more stringent regulations, the study of advanced methods of waste treatment is becoming necessary. The objective of this study was to synthesize and observe the use of a heterogeneous catalyst in a Fenton reaction by doping an SBA-15 catalyst support with iron. The catalyst was successfully synthesized, was easily filterable, exhibited resistance to acidic environments, and showed thermal stability. When used in a Fenton’s Reagent reaction setup, the single trial use of the catalyst achieved a final dye conversion of 86.8% at the optimal …

Mechanism For Leadership Development And Effectiveness: The Relationship Between Followership, Leadership, And Psychological Capital, Saurabh Gupta

Dissertations

Research supports the strategic role of a leader in improving individual and organizational performance (Day et al., 2009; Kaiser & Curphy, 2013). Developing leadership and enhancing leadership effectiveness remains at the forefront of organizational strategic plans (Day et al., 2009; Kaiser & Curphy, 2013). However, a majority of leadership development efforts fail in their purpose, which causes a leadership crisis in many organizations (Fernández-Aráoz, Roscoe, & Aramaki, 2017; Gurdjian, Halbeisen, & Lane, 2014; Kaiser & Curphy, 2013; Madanchian, Hussein, Noordin, & Taherdoost, 2017; Pfeffer, 2015; Wakefield, Abbatiello, Agarwal, Pastakia, & van Berkel, 2016). Neglecting the role of followership and using …