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2014

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Task Driven Design Of Mechanisms And Robotic Systems Using Kinematic Mapping And Fourier Schemes, Xiangyun Li Dec 2014

Task Driven Design Of Mechanisms And Robotic Systems Using Kinematic Mapping And Fourier Schemes, Xiangyun Li

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

This dissertation deals with the problem of task driven design of mechanisms and robotic systems via Fourier and Kinematic Mapping schemes. Task driven design requires that the synthesis process be initiated from the task motion itself rather than from a specific mechanism or robotic system. In other words, extrinsic or intrinsic characteristics of task path or motion is considered as the driving force to the synthesis of mechanisms and robotics systems. Kinematic Mapping approach is applied in the framework of task driven design to synthesize multi-degrees-of-freedom planar and spatial manipulators in a unified way. We present novel, unified, and simultaneous …

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On The Local-Global Principle For Integral Apollonian, Xin Zhang Dec 2014

On The Local-Global Principle For Integral Apollonian, Xin Zhang

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

Starting with three mutually tangent circles, in each of the two gaps we inscribe three circles, and then we inscribe three new circles into the newly generated circles, so on so forth? We obtain a packing of infinitely many circles, and we give a name Apollonian-3 packings. It turns out there exist packings of this type with curvatures (1 over radius) all integers. I will discuss what we know about the integers arising as curvatures from these packings. I will discuss the reduction theorem, the symmetry group, and a density one theorem towards the local-global conjecture. | 47 pages

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Integrability And Non-Integrability In The Ising Model, Michael Assis Dec 2014

Integrability And Non-Integrability In The Ising Model, Michael Assis

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

The Ising model at magnetic field H=0 is one of the most important exactly solved models in statistical mechanics, solved on the square lattice in 1944 by Onsager, and later by others on the triangular lattice; its magnetic susceptibility at H=0 continues to be an unsolved aspect of the model, however. The susceptibility can either be viewed as a sum over all correlation functions of the integrable model at H=0, or else as a second derivative of the free energy of the non-integrable Ising model in a field. Therefore, its analytic properties, though derived from the non-integrable model, can be …

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The Role Of Beta Activity In Blink Abnormalities In A Rat Model Of Parkinson's Disease, Jaime Kaminer Dec 2014

The Role Of Beta Activity In Blink Abnormalities In A Rat Model Of Parkinson's Disease, Jaime Kaminer

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

Parkinson's disease (PD) is a devastating neurodegenerative disease that causes difficulty initiating voluntary movements among other symptoms. Electrophysiological work highlights the presence of exaggerated synchronized beta band (10-30 Hz) oscillations throughout the cortico-basal ganglia network in PD. Although a causal role of beta oscillations in PD symptoms has not been established, many hypothesize that beta activity is " antikinetic" and the source of Parkinsonian motor symptoms. This relationship remains unclear because the strength of beta oscillations changes dynamically with cues that initiate movement and because the voluntary motor symptoms of PD are often not present in animal models of PD. …

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Performance Analysis Of A Hybrid Raman Optical Parametric Amplifier In The O- And E-Bands For Cwdm Pons, Sasanthi Peiris, Nicolas Madamopoulos, Neophytos A. Antoniades, Dwight Richards, Roger Dorsinville Dec 2014

Performance Analysis Of A Hybrid Raman Optical Parametric Amplifier In The O- And E-Bands For Cwdm Pons, Sasanthi Peiris, Nicolas Madamopoulos, Neophytos A. Antoniades, Dwight Richards, Roger Dorsinville

Publications and Research

We describe a hybrid Raman-optical parametric amplifier (HROPA) operating at the O- and E-bands and designed for coarse wavelength division multiplexed (CWDM) passive optical networks (PONs). We present the mathematical model and simulation results for the optimization of this HROPA design. Our analysis shows that separating the two amplification processes allows for optimization of each one separately, e.g., proper selection of pump optical powers and wavelengths to achieve maximum gain bandwidth and low gain ripple. Furthermore, we show that the proper design of optical filters incorporated in the HROPA architecture can suppress idlers generated during the OPA process, as well …

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The Collegian (2014-12-01), Cleiri Quezada Dec 2014

The Collegian (2014-12-01), Cleiri Quezada

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 67, No. 14

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Comparison Of Upper Tropospheric Carbon Monoxide From Mopitt, Ace-Fts, And Hippo-Qcls, Sara Martínez-Alonzo, Merritt N. Deeter, Helen M. Worden, John C. Gille, Louisa K. Emmons, Laura L. Pan, Mijeong Park, Gloria L. Manney, Peter F. Bernath, Chris D. Boone Dec 2014

Comparison Of Upper Tropospheric Carbon Monoxide From Mopitt, Ace-Fts, And Hippo-Qcls, Sara Martínez-Alonzo, Merritt N. Deeter, Helen M. Worden, John C. Gille, Louisa K. Emmons, Laura L. Pan, Mijeong Park, Gloria L. Manney, Peter F. Bernath, Chris D. Boone

Chemistry & Biochemistry Faculty Publications

Products from the Measurements Of Pollution In The Troposphere (MOPITT) instrument are regularly validated using in situ airborne measurements. However, few of these measurements reach into the upper troposphere, thus hindering MOPITT validation in that region. Here we evaluate upper tropospheric (~500 hPa to the tropopause) MOPITT CO profiles by comparing them to satellite Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) retrievals and to measurements from the High-performance Instrumented Airborne Platform for Environmental Research Pole to Pole Observations (HIPPO) Quantum Cascade Laser Spectrometer (QCLS). Direct comparison of colocated v5 MOPITT thermal infrared-only retrievals, v3.0 ACE-FTS retrievals, and HIPPO-QCLS measurements shows …

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An Approximation Algorithm For The Stable Marriagae Problem With Ties And Incomplete Lists, Rommel Jalasutram Dec 2014

An Approximation Algorithm For The Stable Marriagae Problem With Ties And Incomplete Lists, Rommel Jalasutram

All Dissertations

Consider the bipartite matching problem with two sets of participants: men (L) and women (R). Each person participating has a strict and complete preference list over participants from the other set. The goal is to pair men and women such that no one can improve their partner by breaking away from the centralized matching scheme. Problems that exhibit this flavor are commonly classified as ordinal matchings. Gale and Shapley showed how to obtain such a matching (otherwise known as a “stable” matching). Generalizations of this model have found relevance in several centralized matching schemes such as the National Residency Matching …

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An Integrated Systems Engineering Methodology For Design Of Vehicle Handling Dynamics, Mandar Hazare Dec 2014

An Integrated Systems Engineering Methodology For Design Of Vehicle Handling Dynamics, Mandar Hazare

All Dissertations

The primary objective of this research is to develop an integrated system engineering methodology for the conceptual design of vehicle handling dynamics early on in the product development process. A systems engineering-based simulation framework is developed that connects subjective, customer-relevant handling expectations and manufacturers' brand attributes to higher-level objective vehicle engineering targets and consequently breaks these targets down into subsystem-level requirements and component-level design specifications. Such an integrated systems engineering approach will guide the engineering development process and provide insight into the compromises involved in the vehicle-handling layout, ultimately saving product development time and costs and helping to achieve a …

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Majorana Fermions In Chiral Topological Superconductors, Eugen Florin Dumitrescu Dec 2014

Majorana Fermions In Chiral Topological Superconductors, Eugen Florin Dumitrescu

All Dissertations

Majorana fermions were first proposed in the context of high energy physics by Ettore Majorana in 1937, just before his mysterious disappearance. Now, over 70 years later, signatures of condensed matter ana-logues of Majorana fermions are finally appearing in low-dimensional superconductor-based heterostructures. In low-dimensional systems, these order parameter, defect-bound Majorana quasiparticles obey non-Abelian quantum statistics and can therefore be used as the building blocks of a topological quantum computer. In this thesis we will analyze the signatures associated with, and the robustness of, Majorana bound states in a variety of one-dimensional superconducting platforms. Our main result is the finding that …

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Basic And Computation Of Rebased Gross Domestic Product (Gdp) Nigeria's Experience, Emeka Godwin Ofili Dec 2014

Basic And Computation Of Rebased Gross Domestic Product (Gdp) Nigeria's Experience, Emeka Godwin Ofili

Bullion

The paper looks at the basic concepts in GDP compilation and the computational processes for the rebased GDP. The paper is structured into four sections. The first section deals with the introduction while section two explains some basic concepts and mathematics for GDP compilation. Section three takes a look at the GDP Rebasing while section four deals with the Recent Development from the rebasing exercise.

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Weak Convergence To Stochastic Integrals For Econometric Applications, Hanying Liang, Peter C.B. Phillips, Hanchao Wang, Qiying Wang Dec 2014

Weak Convergence To Stochastic Integrals For Econometric Applications, Hanying Liang, Peter C.B. Phillips, Hanchao Wang, Qiying Wang

Cowles Foundation Discussion Papers

Limit theory involving stochastic integrals is now widespread in time series econometrics and relies on a few key results on function space weak convergence. In establishing weak convergence of sample covariances to stochastic integrals, the literature commonly uses martingale and semimartingale structures. While these structures have wide relevance, many applications in econometrics involve a cointegration framework where endogeneity and nonlinearity play a major role and lead to complications in the limit theory. This paper explores weak convergence limit theory to stochastic integral functionals in such settings. We use a novel decomposition of sample covariances of functions of I(1) and I(0) …

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Information-Theoretic Limits For Density Estimation, James Brofos Dec 2014

Information-Theoretic Limits For Density Estimation, James Brofos

Computer Science Technical Reports

This paper is concerned with the information-theoretical limits of density estimation for Gaussian random variables with data drawn independently and with identical distributions. We apply Fano's inequality to the space of densities and an arbitrary estimator. We derive necessary conditions on the sample size for reliable density recovery and for reliable density estimation. These conditions are true simultaneously for both finitely and infinitely dimensional density spaces.

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A Novel Method For Simulating Insulin Mediated Glut4 Translocation, Andrew Jezewski, Joshua Larson, Beata Wysocki, Paul H. Davis, Tadeusz Wysocki Dec 2014

A Novel Method For Simulating Insulin Mediated Glut4 Translocation, Andrew Jezewski, Joshua Larson, Beata Wysocki, Paul H. Davis, Tadeusz Wysocki

Biology Faculty Publications

Glucose transport in humans is a vital process which is tightly regulated by the endocrine system. Specifically, the insulin hormone triggers a cascade of intracellular signals in target cells mediating the uptake of glucose. Insulin signaling triggers cellular relocalization of the glucose transporter protein GLUT4 to the cell surface, which is primarily responsible for regulated glucose import. Pathology associated with the disruption of this pathway can lead to metabolic disorders, such as type II diabetes mellitus, characterized by the failure of cells to appropriately uptake glucose from the blood. We describe a novel simulation tool of the insulin intracellular response, …

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Study On Teacher Absenteeism In Indonesia 2014, Phillip Mckenzie, Dita Nugroho, Clare Ozolins, Julie Mcmillan, Sudarno Sumarto, Nina Toyamah, Vita Febriany, R Justin Sodo, Luhur Bima, Armand Arief Sim Dec 2014

Study On Teacher Absenteeism In Indonesia 2014, Phillip Mckenzie, Dita Nugroho, Clare Ozolins, Julie Mcmillan, Sudarno Sumarto, Nina Toyamah, Vita Febriany, R Justin Sodo, Luhur Bima, Armand Arief Sim

Shaping educational policy

The Study on Teacher Absenteeism is a large-scale research project for the Republic of Indonesia Education Sector Analytical and Capacity Development Partnership (ACDP).The key objective of the study is to provide reliable, valid, nationally representative, and up-to-date information on the rates and determinants of teacher absenteeism in Indonesian primary and junior secondary schools. In addition, the study examines how schools are dealing with teacher absence and assesses the impact of teacher absenteeism on students. Finally, policies and programs already in place are analysed in order to ascertain the extent they are related to teacher attendance in schools and classrooms and …

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Method Development For The Analysis Of Aluminum, Calcium, Magnesium And Iron In Sedimentary Rocks, Zainab Ali Alhawdar Dec 2014

Method Development For The Analysis Of Aluminum, Calcium, Magnesium And Iron In Sedimentary Rocks, Zainab Ali Alhawdar

Electronic Theses & Dissertations

The focus of this study involved the analysis of sedimentary rocks by using atomic absorption spectroscopy. There are three classifications of sedimentary rocks: organic, formed as a result of vital activity of organisms such as coal; non-organic (chemical), formed in the process of evaporation of concentrated mineral solution such as limestone, dolomite, gypsum, salt and chert; and clastic (fragmental), formed from pre-existing rocks as a result of their fragmentation followed by further hardening and cementing such as conglomerate, breccia, sandstone, siltstone and shale. There are various analytical methods for analyzing sedimentary rocks, all of which require dissolving and digestion of …

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A Taste Of Wittgenstein For Sfbt. 2: Philosophical Investigations, Nick Drury Dec 2014

A Taste Of Wittgenstein For Sfbt. 2: Philosophical Investigations, Nick Drury

Journal of Solution Focused Practices

This second of two papers provides an overview of Wittgenstein's later work and life from the perspective of what is called the 'resolute' or 'elucidatory' reading, for Solution-Focused Brief Therapists. This perspective takes the view that Witt­genstein's work can be seen as a form of therapy that enables us to be more at­ tuned to the world and each other.

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Firm-Level Productivity Spillovers In China’S Chemical Industry: A Spatial Hausman-Taylor Approach, Peter H. Egger, Badi H. Baltagi, Michaela Kesina Dec 2014

Firm-Level Productivity Spillovers In China’S Chemical Industry: A Spatial Hausman-Taylor Approach, Peter H. Egger, Badi H. Baltagi, Michaela Kesina

Center for Policy Research

This paper assesses the role of intra-sectoral spillovers in total factor productivity across Chinese producers in the chemical industry. We use a rich panel data-set of 12,552 firms observed over the period 2004-2006 and model output by the firm as a function of skilled and unskilled labor, capital, materials, and total factor productivity, which is broadly defined. The latter is a composite of observable factors such as export market participation, foreign as well as public ownership, the extent of accumulated intangible assets, and unobservable total factor productivity. Despite the richness of our data-set, it suffers from the lack of time …

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Fresh Bytes - Connected Hydroponics For Small-Scale Growing, Jack Bowen Dec 2014

Fresh Bytes - Connected Hydroponics For Small-Scale Growing, Jack Bowen

Liberal Arts and Engineering Studies

Many users are now transitioning to small-scale hydroponics and aquaponics at home. There can be a barrier to entry with these systems as there is a delicate balance of chemicals, pH, etc. that must be maintained. There are sensors for these various components but they are either aimed at commercial production or are un-automated. Fresh Bytes is a microcomputer with sensors to detect all of these unseen components in a hydroponic system. A prototype of this microcomputer is produced along with CAD plans for more professional versions of it. The sensors are verified and future development is contemplated.

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Efficient Camera Selection For Maximized Target Coverage In Underwater Acoustic Sensor Networks, Abdullah Abdulrahman Albuali Dec 2014

Efficient Camera Selection For Maximized Target Coverage In Underwater Acoustic Sensor Networks, Abdullah Abdulrahman Albuali

Theses

In Underwater Acoustic Sensor Networks (UWASNs), cameras have recently been deployed for enhanced monitoring. However, their use has faced several obstacles. Since video capturing and processing consume significant amounts of camera battery power, they are kept in sleep mode and activated only when ultrasonic sensors detect a target. The present study proposes a camera relocation structure in UWASNs to maximize the coverage of detected targets with the least possible vertical camera movement. This approach determines the coverage of each acoustic sensor in advance by getting the most applicable cameras in terms of orientation and frustum of camera in 3-D that …

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Resource Revenues And Fiscal Sustainability: Lessons Of The Alaska Disconnect, Gunnar Knapp Dec 2014

Resource Revenues And Fiscal Sustainability: Lessons Of The Alaska Disconnect, Gunnar Knapp

ISER Articles

In 1968, the Prudhoe Bay oil field was discovered on Alaska’s North Slope – the largest oil field ever discovered in North America. That discovery led to an economic and fiscal transformation of the young state of Alaska. A 1969 sale of Prudhoe Bay leases brought the state $900 million in one day ($4.9 billion in 2014 dollars) – six times the state’s budget that year of $115 million (Ragsdale, 2008). After the completion of the Trans-Alaska pipeline, oil began flowing from the North Slope – bringing the state very large annual oil revenues. Cumulatively, between 1978 and 2014 the …

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Conservation And Ecological Implications Of The Introgression Between Black Bass Subspecies, Rachel Tessier Dec 2014

Conservation And Ecological Implications Of The Introgression Between Black Bass Subspecies, Rachel Tessier

Honors Capstones

No abstract provided.

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Algebraic Semi-Classical Model For Reaction Dynamics, Tim Glenn Wendler Dec 2014

Algebraic Semi-Classical Model For Reaction Dynamics, Tim Glenn Wendler

Theses and Dissertations

We use an algebraic method to model the molecular collision dynamics of a collinear triatomic system. Beginning with a forced oscillator, we develop a mathematical framework upon which inelastic and reactive collisions are modeled. The model is considered algebraic because it takes advantage of the properties of a Lie algebra in the derivation of a time-evolution operator. The time-evolution operator is shown to generate both phase-space and quantum dynamics of a forced oscillator simultaneously. The model is considered semi-classical because only the molecule's internal degrees-of-freedom are quantized. The relative translation between the colliding atom and molecule in an exchange reaction …

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Metastable Behavior For Conservative Dynamics On A Finite Box With Open Boundary, Taizo Chiyonobu, Yusuke Takagi Dec 2014

Metastable Behavior For Conservative Dynamics On A Finite Box With Open Boundary, Taizo Chiyonobu, Yusuke Takagi

Communications on Stochastic Analysis

No abstract provided.

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An Entropy Approach To Bose-Einstein Condensation, Francesco De Vecchi, Stefania Ugolini Dec 2014

An Entropy Approach To Bose-Einstein Condensation, Francesco De Vecchi, Stefania Ugolini

Communications on Stochastic Analysis

No abstract provided.

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Absence Of Energy Level Crossing For The Ground State Energy Of The Rabi Model, Masao Hirokawa, Fumio Hiroshima Dec 2014

Absence Of Energy Level Crossing For The Ground State Energy Of The Rabi Model, Masao Hirokawa, Fumio Hiroshima

Communications on Stochastic Analysis

No abstract provided.

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Step Selection Techniques Uncover The Environmental Predictors Of Space Use Patterns In Flocks Of Amazonian Birds, Jonathan R. Potts, Karl Mokross, Philip C. Stouffer, Mark A. Lewis Dec 2014

Step Selection Techniques Uncover The Environmental Predictors Of Space Use Patterns In Flocks Of Amazonian Birds, Jonathan R. Potts, Karl Mokross, Philip C. Stouffer, Mark A. Lewis

Faculty Publications

Understanding the behavioral decisions behind animal movement and space use patterns is a key challenge for behavioral ecology. Tools to quantify these patterns from movement and animal-habitat interactions are vital for transforming ecology into a predictive science. This is particularly important in environments undergoing rapid anthropogenic changes, such as the Amazon rainforest, where animals face novel landscapes. Insectivorous bird flocks are key elements of avian biodiversity in the Amazonian ecosystem. Therefore, disentangling and quantifying the drivers behind their movement and space use patterns is of great importance for Amazonian conservation. We use a step selection function (SSF) approach to uncover …

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Linking Individual-Tree And Whole-Stand Models For Forest Growth And Yield Prediction, Quang V. Cao Dec 2014

Linking Individual-Tree And Whole-Stand Models For Forest Growth And Yield Prediction, Quang V. Cao

Faculty Publications

Background: Different types of growth and yield models provide essential information for making informed decisions on how to manage forests. Whole-stand models often provide well-behaved outputs at the stand level, but lack information on stand structures. Detailed information from individual-tree models and size-class models typically suffers from accumulation of errors. The disaggregation method, in assuming that predictions from a whole-stand model are reliable, partitions these outputs to individual trees. On the other hand, the combination method seeks to improve stand-level predictions from both whole-stand and individual-tree models by combining them. Methods: Data from 100 plots randomly selected from the Southwide …

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Eigenfunctions Of Unbounded Support For Embedded Eigenvalues Of Locally Perturbed Periodic Graph Operators, Stephen P. Shipman Dec 2014

Eigenfunctions Of Unbounded Support For Embedded Eigenvalues Of Locally Perturbed Periodic Graph Operators, Stephen P. Shipman

Faculty Publications

It is known that if a locally perturbed periodic self-adjoint operator on a combinatorial or quantum graph admits an eigenvalue embedded in the continuous spectrum, then the associated eigenfunction is compactly supported—that is, if the Fermi surface is irreducible, which occurs generically in dimension two or higher. This article constructs a class of operators whose Fermi surface is reducible for all energies by coupling several periodic systems. The components of the Fermi surface correspond to decoupled spaces of hybrid states, and in certain frequency bands, some components contribute oscillatory hybrid states (corresponding to spectrum) and other components contribute only exponential …

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Sustainability Of A Comprehensive School Reform Model From The Perspectives Of Three Participating Principals, Bethann S. Browning Dec 2014

Sustainability Of A Comprehensive School Reform Model From The Perspectives Of Three Participating Principals, Bethann S. Browning

Masters Theses and Doctoral Dissertations

School reform is a deliberate process that requires a strong commitment at all levels. The school leader plays a crucial role in establishing a vision and nurturing an environment that facilitates reform efforts. School reform efforts have witnessed a change in the role of the elementary principal from manager to instructional leader. The purpose of this qualitative study was to examine the role of the elementary principal in sustaining school reform, in the form of Literacy Collaborative. The study was guided by one research question: how did elementary principals sustain a comprehensive school reform effort in the form of Literacy …

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