Digital Commons Network^™

Equipment Maintenance And Replacement Decision Making Processes, Michael W. Gage

Industrial and Manufacturing Engineering

This project contains recommendations for the decision making processes for support and production equipment maintenance and replacement for a large defense contractor. Recent literature has been reviewed to provide perspective on current trends in the field. A complete evaluation of their current processes and systems is included with recommendations on areas for improvement. A decision support system is also proposed to supplement their existing decision making.

Fixture For Carbon Fiber Spar Of Human Powered Helicopter, David John Ikeda, Luis Gonzalez

Industrial and Manufacturing Engineering

The following report describes our contribution to Cal Poly Human Powered Helicopter for the 2012 competition for the Sikorsky Prize offered by the American Helicopter Society. In order to win this prize the team needs to build and fly a human powered helicopter for more than 60 seconds reaching and altitude of 3 meters while staying in a 10 meter square box. Our team was created to support the integration of Carbon Fiber parts, specifically the carbon fiber spars with rotor and landing gears. Precise cutting and accurate drilling was needed and our team was tasked with creating a fixture …

“Big Data” In Workplace Research: Using High Technology To Assess Workplace Collaboration, Jay Brand, Gabor Nagy

Faculty Publications

No abstract provided.

Huntsman Alumni Magazine, Fall 2013, Usu Jon M. Huntsman School Of Business

Huntsman Business Magazine

Alumni magazine for the Jon M. Huntsman School of Business at Utah State University.

Interactive Methods And Collaborative Performance: A New Future For Indirect Infringement, Josh Rychlinski

Michigan Telecommunications & Technology Law Review

An individual is liable for patent infringement if he infringes one or more patented claims either directly under 35 U.S.C. § 271(a) or indirectly under 35 U.S.C. § 271(b) or § 271(c). In 2012, the Federal Circuit clarified its interpretation of § 271(b) and § 271(c) in the case of Akamai v. Limelight. However, the court failed to address issues of “divided” direct infringement, where two or more entities combine and together complete each and every step of a method claim, but no single entity does all of the steps. This Note walks through the history of the judicial interpretation …

Business Outlook, Vol. 29, No. 4, December 2013

Business Outlook for West Michigan

No abstract provided.

The Chinese Equity Risk Factor Model Based On Heavy Tailed Distributions, And Its Application In Risk Management And Portfolio Optimization, Tianyu Lu

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

In financial risk and portfolio management, the heavy tailed distributions of one-dimensional asset returns and complex dependence structure among multi-dimensional asset returns are two widely discussed problems. Various distributions, which share the desired properties, such as heavy tails, skewness and kurtosis, have been introduced and applied into practice. On the other hand, factor modeling as a technique of dimension reduction, has been used in multivariate statistical analysis and econometric model building, especially in high-dimensional world of financial risk management In this dissertation, we study these two popular problems in risk and portfolio management. The findings are empirically examined through their …

Aspects Of Supersymmetric Field Theories And Complex Geometry, Patricio Marcos Crichigno

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

In this dissertation we study various aspects of Supersymmetric Quantum Field Theory and Complex Geometry. We focus on three main aspects. The first is general N=(2,2) gauged linear sigma models involving semichiral fields. We show that integrating out the semichiral vector multiplet leads to the generalized potential for a hyperkahler manifold, providing a formulation of the hyperkahler quotient in a generalized setting. We then discuss a new quotient construction which leads to non-Kahler manifolds. The second problem we study is motivated by recent developments in the study of the Coulomb branch of supersymmetric theories with a hyperkahler moduli space. A …

Low Momentum Direct Photons As A Probe Of Heavy Ion Collisions, Richard Michael Petti

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Relativistic heavy ion collisions have been a major research interest in the field of nuclear physics for the past few decades. Large collider facilities have been constructed to study the exotic matter produced in relativistic heavy ion collisions, one of which is the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory in Upton, NY. Essential to the study of heavy ion collisions are probes that are produced in the collision itself. Photons are a very useful probe of the collisions, since they escape the fireball virtually unmodified and carry with them information about the environment in which it was …

Entanglement In Low Dimensional Systems, Raul Santos

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

In the ground state of gapped systems, the entanglement entropy of a subsystem A scales with the length of the boundary of A. This observation suggests that the entanglement properties of the sub- system can be described in terms of degrees of freedom living in the boundary of A. We will discuss the the connection between en- tanglement properties and effective boundary descriptions in spin systems in one and two dimensions. In one dimension we present analytic results for the spin S = 1, Affleck-Kennedy-Lieb-Tasaki (AKLT) ground state entanglement, characterized by negativity and entanglement spectrum. We also discuss a generalization …

The Dynamical Basis Of The Decanalization Of Gene Expression In Kr Uppel Mutant Embryos, Lena Panok

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Canalization is the ability of an organism's phenotype to remain stable under a perturbation in their genotype or the environment. It has been noted that there is no canalization or canalization is to a much smaller degree in mutants than in wild type. Waddington's idea was to understand canalization through studying gene interactions. We investigate the mechanisms of canalization of gap gene patterns in D.melanogaster through dynamical analysis of the gene circuit. To carry out this investigation we construct a dynamical model of the evolution of the concentration of protein products of the gap genes in time. Our model, which …

Mixture Modeling Of Next Generation Sequencing Data And Its Applications To Genotyping And Estimating Genotype Frequencies, Jayon Lihm

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Estimating the probability that an individual has a base pair nucleodite different from the reference nucleotide is important in next generation sequencing (NGS) research. I present a method for modeling the frequency of single nucleotide polymorphism variants in the exome capturing sequence data of an individual. A mixture distribution was used to model the proportion of alternative alleles at a specified base pair position assuming a biallelic single nucleotide polymorphism model. I measured the proportion of alternative alleles for positions in chromosome 1 exome sequencing data fro two trios taken from the Pilot 3 data in the 1000 Genomes Project. …

The Dynamical Basis Of The Decanalization Of Gene Expression In Kr Uppel Mutant Embryos, Lena Panok

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Canalization is the ability of an organism's phenotype to remain stable under a perturbation in their genotype or the environment. It has been noted that there is no canalization or canalization is to a much smaller degree in mutants than in wild type. Waddington's idea was to understand canalization through studying gene interactions. We investigate the mechanisms of canalization of gap gene patterns in D.melanogaster through dynamical analysis of the gene circuit. To carry out this investigation we construct a dynamical model of the evolution of the concentration of protein products of the gap genes in time. Our model, which …

High-Order Surface Reconstruction And Its Applications To Surface Integrals And Surface Remeshing, Navamita Ray

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

High-order surface reconstruction is a numerical technique to obtain high-order approximations of both geometry and its differential quantities such as normals, curvatures, etc. | over a discrete surface mesh. Its computational framework is based on local polynomial fittings using a weighted least squares approach. In this dissertation, we complete the scope of this framework to compute high-order approximations of surface integrals and demonstrate the application of the complete framework to various mesh-based numerical computations for high-order numerical methods. The computational framework relies on an efficient underlying mesh data structure for various traversal queries. For this purpose, an array-based mesh data …

Approximation Of Long Memory Process By Short Memory Process - With Application To Option Valuation, Pengyuan Shao

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Options on an asset which follow a long memory process are difficult to value by conventional methods, due to the existence of arbitrage opportunities. Here we show how to avoid the problem of arbitrage opportunities and value vanilla European options when underlying asset returns follow a FARIMA(p,d,q) processes with d>0 which is widely used as an model of long memory price processes. We use information distance to prove that stationary ARMA processes are dense in all FARIMA processes in the total variation distance. As a consequence, statistical tests with finite sample size fail to distinguish a FARIMA process from …

The Ricci Flow On Manifolds With Boundary, Panagiotis Gianniotis

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

In this thesis, we investigate issues related to boundary value problems for the Ricci flow. First, we focus on a compact manifold with boundary and show the short-time existence, regularity and uniqueness of the flow. To obtain these results we impose the boundary conditions proposed by Anderson for the Einstein equations, namely the mean curvature and the conformal class of the boundary. We also show that a certain continuation principle holds. Our methods still apply when the manifold is not compact, as long as it has compact boundary and an appropriate control of the geometry at infinity. Secondly, motivated by …

Kähler Potentials On The Moduli Space Of Stable Parabolic Bundles Over The Riemann Sphere | Kã¤Hler Potentials On The Moduli Space Of Stable Parabolic Bundles Over The Riemann Sphere, Claudio Meneses-Torres

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

We start this work by reinterpreting the Moduli problem of stable parabolic bundles from a complex analytic perspective. This allows us to introduce canonical complex coordinates on the Moduli space, analogous to the Bers' coordinates on Teichmüller spaces. Similarly, a suitable analog of uniformization will play a central role. Finally, the identification of the tangent space at a point with a certain space of automorphic forms leads to the introduction of the parabolic Narasimhan-Atiyah-Bott metric on the Moduli space, which is analogous to the Weil-Petersson metric. Secondly, for each stable parabolic bundle, a regularized WZNW action functional is defined on …

The Eventual Gaussian Distribution Of Self-Intersection Numbers On Closed Surfaces, Matthew Murray Wroten

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

ABSTRACT. Oriented loops on an orientable surface are, up to equivalence by free homotopy, in one-to-one correspondence with the conjugacy classes of the surface's fundamental group. These conjugacy classes can be expressed (not uniquely in the case of closed surfaces) as a cyclic word of minimal length in terms of the fundamental group's generators. The self-intersection number of a conjugacy class is the minimal number of transverse self-intersections of representatives of the class. By using Markov chains to encapsulate the exponential mixing of the geodesic flow and achieve sufficient independence, we can use a form of the central limit theorem …

An Oop Based Four-Bar Mechanism Design And Simulation (4mds) Software, Abhijit Toravi

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Despite having been a research topic alive for a long time, various proposed solutions to planar mechanism design for the approximate motion synthesis have been non-linear in nature. In general, the algorithms proposed are computationally expensive and require dealing with the type and dimension synthesis separately. The thesis presents an interactive software tool for unified type and dimension synthesis of planar four bar mechanism and its simulation. It implements an efficient and linear algorithm that naturally extracts the geometric constraints of a motion and leads directly to the type and dimensions of a mechanism for motion generation. The software has …

Application Of Machine Learning To Decision Support Systems, Han Yu

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

This dissertation presents applications of machine learning methods to clinical data sets and development of a decision support system. Our goal is to develop machine learning methods to predict potential healthcare problems before the onset of the actual diseases. Our research involves two examples with high-dimensional data. The independent variables are selected depending on the quality of prediction, and the models will be trained on the subspaces of the training data set. We also employed feature extraction technique to the original feature space such as PCA, FCA, data transformation, etc. This projection of the original feature space to lower the …

Crystal Structure Prediction Of Compounds In The Al-O System: Alo2 And Al4o7, Yue Liu

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

USPEX is the foremost Evolutionary Algorithm which calculates crystal structure through genetic algorithm. And it is using ab initio determination to contribute powerful searching in crystal structure prediction. This method enables crystal structure prediction at arbitrary P-T conditions, given just the chemical composition of the material. USPEX is interfaced with DFT or classic codes, such as VASP, SIESTA, GULP and so on. USPEX can also be used to search for materials with desired physical properties. There are already significant discoveries found by using USPEX. For instance, it has been found the 40-atom cell of MgSiO₃ post-perovskite for this fixed …

Material Properties Of Zooplankton And Nekton From The California Current, Kaylyn Nichole Becker

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

This study measured the material properties of zooplankton, Pacific hake (Merluccius productus), Humboldt squid (Dosidicus gigas), and two species of myctophids (Symbolophorus californiensis and Diaphus theta) collected from the California Current ecosystem. The density contrast (g) was measured for euphausiids, decapods (Sergestes similis), amphipods (Primno macropa, Phronima sp. | and Hyperiid spp.), siphonophore bracts, chaetognaths, larval fish, crab megalopae, larval squid, and medusae. Morphometric data (length, width, and height) were collected for these taxa. Density contrasts varied within and between zooplankton taxa. The mean and standard deviation for euphausiid density contrast were 1.059 ± 0.009. Relationships between zooplankton density contrast …

The Deaf Catholic, Winter 2013

ICDA The Deaf Catholic

A newsletter published for Deaf Catholics in USA

ICDA The Deaf CatholicFinding Aid

The Effects Of Standards-Based Grading On Student Performance In Algebra 2, Rachel Beth Rosales

Dissertations

The use of standards-based grading in American public schools is increasing, offering students, parents, and teachers a new way of measuring and communicating about student achievement and performance. Parents indicate an appreciation for this method of grading, and students at the elementary grades (K-6) have improved standardized test scores in reading and math as a result of its implementation. This study seeks to determine whether standards-based grading has the same effect on students at the high school level (grades 9-12) by comparing end-of-course test scores and posttest scores of Algebra 2 students enrolled in a standards-based graded classroom with to …

Forensic Investigation Of Mysql Database Management System, Andrew C. Lawrence

Computer Science and Computer Engineering Undergraduate Honors Theses

For various reasons, circumstances might arise in which an investigator, enlisting the help of a system administrator, needs access to an instance of MySQL that is password protected by an individual system user. If this password is unknown and the user is uncooperative or unavailable, alternative means must be utilized to gain access to the data stored within the program. Two main approaches will be explored, each with its pros and cons. In one case, the password can be bypassed entirely, granting the investigator unfettered access to the program data. The second method allows a narrower look at only some …

Synthesis And Characterization Of Manganese Pyridazyl Complexes, Sana Shah

Masters Theses & Specialist Projects

Heterocyclic’s and their fused-ring derivatives have been of interest for their use in electronic materials due to their ease of production, synthetic versatility, and low cost compared to traditional inorganic materials like silicon. Pyridazines have been found to be useful in catalysis gas storage, polymeric sensors and biological mimetics. When a transition-metal is fused into a synthesized pyridazine, unique properties such as conductivity and optics are allowed. In this work, synthesized pyridazine complexes will be analyzed by mass spectroscopy, elemental analysis, nuclear magnetic resonance, imaging, x-ray crystallography, and infrared spectroscopy. We are interested in synthesizing organometallic pyridazines and manganese pyridazyl …

Psychometric Differences In Motor Functioning, Ashley Mcwaters

HIM 1990-2015

Clinical experience has shown that patients performing the Grooved Pegboard Test have difficulty maintaining the manualized right-to-left placement strategy with their left hand. This study sought to investigate possible differences in placement time on the Grooved Pegboard task between participants using the standardized left hand approach and a reversed manualized left hand placement strategy (i.e., left-to-right). The participants included 63 male and female undergraduate volunteers between the ages of 18 and 25 years. All participants had no history of neurologic disease/trauma, or conditions that would affect motor functioning of the right and left upper extremities. Data were analyzed using a …

Ole Miss Engineer 2013-2014

Ole Miss Engineer

No abstract provided.

Ansc, Winter 2013, University Of Arkansas, Fayetteville. Department Of Animal Sciences

Animal Science Newsletter

"Dedicated to the Alumni and Friends of the Animal Sciences Department, University of Arkansas."

Disaster Relief Models: Location Of Points Of Distribution, Othman Boudhoum

Industrial Engineering Undergraduate Honors Theses

This project consists of developing a Location Allocation model that focuses on determining the locations of relief supply Points of Distribution (PODs) after a natural disaster and how to assign demand points to them. According to FEMA, PODs are “centralized locations where the public picks up life sustaining commodities following a disaster or emergency” [1]. After each disaster, decisions have to be made to ensure a good delivery of resources in a timely manner. The road infrastructure may be damaged due to the disaster. Some roads might become inoperable, and some bridges are expected to fail. The model studied in …