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Articles 1 - 30 of 455
Full-Text Articles in Physical Sciences and Mathematics
Comparison And Evaluation Of Black Carbon And Elemental Carbon Instrumentation In A Near Roadway Environment, Brandon James Feenstra
Comparison And Evaluation Of Black Carbon And Elemental Carbon Instrumentation In A Near Roadway Environment, Brandon James Feenstra
Theses Digitization Project
This study was conducted at a site adjacent to the I-710 freeway in Long Beach California from March 7 to April 8 of 2012 to evaluate various black carbon and elemental carbon aerosol measurement methods. The measurement of carbonaceous aerosol is a growing field of study because of increasing interest into the climate and health effects of black carbon (BC), and important constituent of atmospheric particular matter (PM). Elemental carbon (EC) and BC are measurements of similar portions of carbon particulate matter, but two measures are operationally defined according to the method used for their detection.
Gradebadge: Development Of A Cloud-Based Reward Application, Erwin Toni Soekianto
Gradebadge: Development Of A Cloud-Based Reward Application, Erwin Toni Soekianto
Theses Digitization Project
The purpose of this project is to investigate the use of cloud-based services to deliver cutting edge applications. For this purpose, a prototype of a reward application using badges, called Gradebadge, was developed to illustrate and explore this emerging paradigm.
Stereotactic Localization And Targeting Accuracy For Experimental Proton Radiosurgery, Yin Chen
Stereotactic Localization And Targeting Accuracy For Experimental Proton Radiosurgery, Yin Chen
Theses Digitization Project
The purpose of this study was to improve an existing experimental proton radiosurgery system at Loma Linda University Medical Center to reach sub-millimeter accuracy before proton radiosurgery with narrow beams can be used in a clinical trial. Protons, different from photons (i.e., x-rays or gamma rays), are charged with particles that slow down in matter and release a burst of energy near the end of their range (maximum depth of penetration), which is called the Bragg peak, named after the physicist William Henry Bragg who discovered it in 1903. Photon beams deliver most doses over a large area near the …
Alternative Hull Detection Techniques For Preprocessing In Proton Computed Tomography Reconstruction, Blake Edward Schultze
Alternative Hull Detection Techniques For Preprocessing In Proton Computed Tomography Reconstruction, Blake Edward Schultze
Theses Digitization Project
The purpose of this study was to develop computationally efficient hull detection techniques appropriate for image reconstruction using sparse matrices. The hull detection techniques investigated were space carving (SC), modified space carving (MSC), and space modeling (SM) and these were compared to the cone-beam version of filtered back projection (FBP) algorithm in terms of their computation time and the quality of the object hull they produced.
Fiducial-Free Alignment Verification Techniques For Intracranial Radiosurgery, Kenneth Matthew Williams
Fiducial-Free Alignment Verification Techniques For Intracranial Radiosurgery, Kenneth Matthew Williams
Theses Digitization Project
This thesis serves as the basis for a method using image registration to automate patient alignment in an effort to eliminate the dependency on the fiducial markers as well as improve the accuracy efficiency of the alignment process. Proton beams are an external beam modality of radiation therapy that can be used effectively for radiosurgical applications due to the dosimetry advantage of the Bragg peak. The Bragg peak is a phenomenon exploited by proton beam therapy to concentrate the effect of the beams on the tumor while minimizing damage to critical structures and other health tissues within the patient.
Plasma Confinement: Mathematical Modeling Of A Fusion Reactor, James Scott Jones
Plasma Confinement: Mathematical Modeling Of A Fusion Reactor, James Scott Jones
Theses Digitization Project
This study will discuss currently used power sources and their drawbacks, leading to covering fusion as an energy source and its potential. Fusion has three significant important advantages: Fuel reserves, safety, and environment. A significant amount of fuel reserves comes from the natural occurrence in ocean water of deuterium at a 1 to 6700 ratio, accounting for the energy supply being on the order of 2 billion years. Fusion does not produce any greenhouse gases and its only 'exhaust' is that of harmless inert helium.
A Study Of Finite Symmetrical Groups, May Majid
A Study Of Finite Symmetrical Groups, May Majid
Theses Digitization Project
This study investigated finite homomorphic images of several progenitors, including 2*⁵ : S₅, 2*⁶ : A₆, and 3*⁵ : C₅ The technique of manual of double coset enumeration is used to construct several groups by hand and computer-based proofs are given for the isomorphism types of the groups that are not constructed.
Developing Focused Auditing Tools: A Practical Framework For Creating Formalized Multi-Level Security Policy Specifications, Barbara Ann Brough
Developing Focused Auditing Tools: A Practical Framework For Creating Formalized Multi-Level Security Policy Specifications, Barbara Ann Brough
Theses Digitization Project
The purpose of this study is that formalized policy specifications and focused penetration testing are needed to effectively audit any information system. Designing and maintaining the security system information is the primary duty of the cyber security professional. In today's world, nearly all government agencies manage some form of financial, defense, national security, and/or privacy information security policies. It is also necessary in this environment that agencies are accountable for auditing the security systems that protect this information.
The Implementation Of A Thin Client In The Department Of Defense Network System, Sung Ju In
The Implementation Of A Thin Client In The Department Of Defense Network System, Sung Ju In
Theses Digitization Project
The purpose of this project is to introduce and analyze a thin client solution that could enhance the overall Department of Defense (DoD) network system as well as its IT security posture, minimize risk from external threats, and ease of network operations.
The Fibonacci Sequence And Hosoya's Triangle, Jeffrey Lee Smith
The Fibonacci Sequence And Hosoya's Triangle, Jeffrey Lee Smith
Theses Digitization Project
The purpose of this thesis is to study the Fibonacci sequence in a context many are unfamiliar with. A triangular array of numbers, similar looking to Pascal's triangle, was constructed a few decades ago and is called Hosoya's triangle. Each element within the triangle is created using Fibonacci numbers.
Asynchronous Cellular Automata, Kelechi Chidi Anuforo
Asynchronous Cellular Automata, Kelechi Chidi Anuforo
Theses Digitization Project
This study will investigate floating-point asynchronous cellular automata models implemented on Field-Programmable Gate Array (FPGA). It includes single grid and random schedules for individual cells. Cellular automata (CA) are basic representations of calculations that show interesting elaborate responses.
3d Face Animation With Opengl Es: An Android Application, Ihab Mohamad Zbib
3d Face Animation With Opengl Es: An Android Application, Ihab Mohamad Zbib
Theses Digitization Project
Mobile applications have become ubiquitious with the increase in the popularity and computational power of mobile devices. They can now support rich multimedia user interactions. This project consists of the design and implementaiton of an Android application that renders and animates a three-dimensional model of a human head. The test is synthesized using an Android Text-to-Speech (TTS) engine. The application successfully implements a novel solution for the animated speech synchronization and opens the door for further work in the field of interactive animation. The project can be extended to become an interface for virtual remote communication or animated text messaging.
Hyperbolicity Equations For Knot Complements, Christopher Martin Jacinto
Hyperbolicity Equations For Knot Complements, Christopher Martin Jacinto
Theses Digitization Project
This study analyzes Carlo Petronio's paper, An Algorithm Producing Hyperbolicity Equations for a Link Complement in S³. Using the figure eight knot as an example, we will explain how Petronio's algorithm was able to decompose the knot complement of an alternating knot into tetrahedra. Then, using the vertex invariants of these tetrahedra, we will explain how Petronio was able to create hyperbolicity equations.
Behavior Of Solutions For Bernoulli Initial-Value Problems, Carlos Marcelo Sardan
Behavior Of Solutions For Bernoulli Initial-Value Problems, Carlos Marcelo Sardan
Theses Digitization Project
The purpose of this project is to investigate blow-up properties of solutions for specific initial-value problems that involve Bernoulli Ordinary Differential Equations (ODE's). The objective is to find conditions on the coefficients and on the initial-values that lead to unbounded growth of solutions in finite time.
Whitney's 2-Isomorphism Theorem For Hypergraphs, Eric Anthony Taylor
Whitney's 2-Isomorphism Theorem For Hypergraphs, Eric Anthony Taylor
Theses Digitization Project
This study will examine a fundamental theorem from graph theory: Whitney's 2-Isomorphism Theorem. Whitney's 2-Isomorphism theorem characterizes when two graphs have isomorphic cycle matroids.
Queuepay.Com: Building A System For Cardholders' Transaction Security, Jose Ramon Gonzalez
Queuepay.Com: Building A System For Cardholders' Transaction Security, Jose Ramon Gonzalez
Theses Digitization Project
The purpose of this project was to apply the skills learned in the MBA program to help develop a solution to a problem that costs billions of dollars every year in fraudulent related losses arising from the use of payment cards such as debit cards, credit cards, charge cards or prepaid cards. The project analyzes the industry of payment cards, the emergence of the problem, and builds a prototype that addresses the problem. Queuepay.com is designed to provide services to its cardholders that will significantly reduce the risk of fraud.
Impact Of Varied Low Resolution Phantoms On Intensity Modulated Proton Therapy Dose Distributions, Aarohi Shyam Padhye
Impact Of Varied Low Resolution Phantoms On Intensity Modulated Proton Therapy Dose Distributions, Aarohi Shyam Padhye
Theses Digitization Project
The primary purpose of this thesis is to discuss the usefulness of image segmentation techniques in creating accurate proton dose distribution plans. The calculation of the proton dose distribution has to take into account the material (tissue, bone, brain) in the treatment area of the patients body.
A Study Of Finite Symmetrical Groups, Patrick Kevin Martinez
A Study Of Finite Symmetrical Groups, Patrick Kevin Martinez
Theses Digitization Project
This study discovered several important groups that involve the classical and sporadic groups. These groups appeared as finite homomorphic images of the progenitors 3*8 : PGL₂(7), 2*¹⁴ : L₃ (2), 5*³ : S₃ and 7*2 : m S₃.
Quantum Cryptography, Razvan Augustin Dinu
Quantum Cryptography, Razvan Augustin Dinu
Theses Digitization Project
This study builds a case for using a quantum computer for solving cryptographic problems. It looks at the quantum turing machine concept, explores why use quantum computers and presents Deutsch's problem which allows one to select from amongst the parallel paths a quantum computer calculates.
Enumeration And Symmetric Presentations Of Groups, With Music Theory Applications, Jesse Graham Train
Enumeration And Symmetric Presentations Of Groups, With Music Theory Applications, Jesse Graham Train
Theses Digitization Project
The purpose of this project is to construct groups as finite homomorphic images of infinite semi-direct products. In particular, we will construct certain classical groups and subgroups of sporadic groups, as well groups with applications to the field of music theory.
Gradeboard: A Cloud-Based Solution For A Student Grading System, Manoj Kulkarni
Gradeboard: A Cloud-Based Solution For A Student Grading System, Manoj Kulkarni
Theses Digitization Project
The purpose of the GradeBoard application is to develop a mobile application as a front end to interact with data stored in a cloud-based system. It leverages cloud computing features such as auto-scaling, load-balancing and NoSQL data stores. The GradeBoard application helps instructors keep track of student activities and gives students an opportunity to know how they are performing by comparing their grades with other students through a game-like leader board interface, thus creating a competitive environment in the class. Contains source code.
Online Examination System, Yuvesh Kumar Singh
Online Examination System, Yuvesh Kumar Singh
Theses Digitization Project
The purpose of this project focused on how to implement a secure environment for online-examination in an academic and business environment without the need of any special network topologies and hardware devices. It will not only reduce the instructor's load, but will also enhance the system flexibility to fit every instructor's needs and from the examinees point of view. Contains source code.
California State University, San Bernardino Managing Cloud Computing Resources With Cloudstack Using Kvm Hypervisor, Ian Buckner Jacobs
California State University, San Bernardino Managing Cloud Computing Resources With Cloudstack Using Kvm Hypervisor, Ian Buckner Jacobs
Theses Digitization Project
The purpose of this project is to present a detailed description of the Enterprise Cloud Computing implementation of CloudStack using KVM. It will explain the purpose and features of the system, the interfaces of the system, what the system will do, and the constraints or limitations implementing CloudStack with the hardware available for this study.
Comparing The Algebraic And Analytical Properties Of P-Adic Numbers With Real Numbers, Joseph Colton Wilson
Comparing The Algebraic And Analytical Properties Of P-Adic Numbers With Real Numbers, Joseph Colton Wilson
Theses Digitization Project
This study will provide a glimpse into the world of p-adic numbers, which encompasses a different way to measure the distance between rational numbers. Simple calculations and surprising results are examined to help familiarize the reader to the new space.
The Banach-Tarski Paradox, Matthew Jacob Norman
The Banach-Tarski Paradox, Matthew Jacob Norman
Theses Digitization Project
The purpose of this thesis is to establish the history and motivation leading up to the Banach-Tarski Paradox, as well as its proof. This study discusses the early history of set theory as it is documented as well as the necessary basics of set theory in order to further understand the contents within. Set theory not only proved to be for the mathematical at heart but also struck interest into the mind of philosophers, theologians, and logicians.
The Complexity Of Linear Algebra, Leann Kay Christensen
The Complexity Of Linear Algebra, Leann Kay Christensen
Theses Digitization Project
This study examines the complexity of linear algebra. Complexity means how much work, or the number of calculations or time it takes to perform a task. As linear algebra is used more and more in different fields, it becomes useful to study ways of reducing the amount of work required to complete basic procedures.
A New Phantom And Gradient Isocenter Estimation For Magnetic Resonance Imaging Distortion Correction, Zongqi Cai
A New Phantom And Gradient Isocenter Estimation For Magnetic Resonance Imaging Distortion Correction, Zongqi Cai
Theses Digitization Project
The purpose of this study was to develop and implement a numerical software based method that can accurately correct the distortion of MR images generated by 3T MRI scanner. To accomplish this, a new phantom has been designed from scratch to capture the distortions inside 3T MRI scanner. An algorithm has been developed, based on the unique geometric feature of the new phantom, to estimate the location of gradient isocenter of the magnetic field inside 3T MRI scanner for the first time.
Biostratigraphy Of The Halgaito Formation, Cutler Group Near Mexican Hat, San Juan County, Utah, Kimberly Marie Scott
Biostratigraphy Of The Halgaito Formation, Cutler Group Near Mexican Hat, San Juan County, Utah, Kimberly Marie Scott
Theses Digitization Project
The purpose of this thesis is to develop a better understanding of the paleontology and biostratigraphy of the Halgaito Formation and the position of the Carboniferous-Permian Boundary (CPB) within the Halgaito Formation which would provide useful data that can be extrapolated to other terrestrial ecosystems of the southwestern United States of America that are of comparable age.
Ticketing And Event Management Web Service, Nikolay Figurin
Ticketing And Event Management Web Service, Nikolay Figurin
Theses Digitization Project
The purpose of this project was creating a web based application that included: user account creation, event creation per user, tiered ticket sales per event, search capabilities, a focus on scalability and data redundancy, a focus on verification of event creator identities and administration features, a focus on account expandability, an ability to easily expand functionality, ease of migration and stability, low and inexpensive maintenance, as well as an optimal framework relying on a platform as a service content delivery network with the option of database abstraction.
Use Of General Purpose Graphical Processing Units In Blowfish Encryption Algorithm, Cankat Duman
Use Of General Purpose Graphical Processing Units In Blowfish Encryption Algorithm, Cankat Duman
Theses Digitization Project
The purpose of this project is to present the findings of the work that has been completed on exploring the possibilities of speedup gained when using General Purpose Graphical Processing Units for the Blowfish encryption algorithm with the use of the CUDA (Computer Unified Device Architecture) programming language and architecture.