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2016

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Searching For Dark Matter With The Fermi-Lat And Through New Experimental Ideas, Andrea Massari Dec 2016

Searching For Dark Matter With The Fermi-Lat And Through New Experimental Ideas, Andrea Massari

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

The evidence for dark matter is overwhelming. We know where the dark matter is, how much there is, but we do not know what type of particle it consists of. Experimental efforts, as well as theoretical, have tried to shed light on its identity. On the experimental side, “indirect detection†aims to detect stable leptons, baryons, or photons resulting from the annihilation or decay of dark matter particles in outer space. On the other hand, “direct detection†experiments have the goal to reveal interactions of the dark matter particles with electrons or nuclei in a detector on Earth. To date, …

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New Designs And Characterization Techniques For Thin-Film Solar Cells, Yutong Pang Dec 2016

New Designs And Characterization Techniques For Thin-Film Solar Cells, Yutong Pang

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

This thesis presents a fundamentally new thin-film photovoltaic design and develops several novel characterization techniques that improve the accuracy of thin-film solar cell computational models by improving the accuracy of the input data. We first demonstrate a novel organic photovoltaic (OPV) design, termed a ``Slot OPV", in which the active layer is less than 50 nm; We apply the principles of slot waveguides to confine light within the active layer. According to our calculation, the guided-mode absorption for a 10nm thick active layer equal to the absorption of normal incidence on an OPV with a 100nm thick active layer. These …

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Molecular Strong Field Ionization Viewed With Photoelectron Velocity Map Imaging, Peter Sandor Dec 2016

Molecular Strong Field Ionization Viewed With Photoelectron Velocity Map Imaging, Peter Sandor

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

In this thesis, work is presented on molecular strong-field ionization, during which an electron is removed from polyatomic molecules in the presence of strong laser fields. This is a process which is the basis of a number of experimental techniques to uncover electronic dynamics in atoms and molecules on the femtosecond and attosecond timescale. ’Strong’ refers to an electric field strength which leads to a response from the system which can not be modeled perturbatively. These fields can be easily produced in the focus of femtosecond laser radiation, as is done in this work. With the use of velocity map …

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Studies Of Entanglement Entropy, And Relativistic Fluids For Thermal Field Theories, Michael Spillane Dec 2016

Studies Of Entanglement Entropy, And Relativistic Fluids For Thermal Field Theories, Michael Spillane

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

In this dissertation we consider physical consequences of adding a finite temperature to quantum field theories. At small length scales entanglement is a critically important feature. It is therefore unsurprising that entanglement entropy and Renyi entropy are useful tools in studying quantum phase transition, and quantum information. In this thesis we consider the corrections to entanglement and Renyi entropies due to addition of a finite temperature. n this dissertation we consider physical consequences of adding a finite temperature to quantum field theories. At small length scales entanglement is a critically important feature. It is therefore unsurprising that entanglement entropy and …

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Electron Source Based On Superconducting Rf, Tianmu Xin Dec 2016

Electron Source Based On Superconducting Rf, Tianmu Xin

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

High-bunch-charge photoemission electron-sources operating in a Continuous Wave (CW) mode can provide high peak current as well as the high average current which are required for many advanced applications of accelerators facilities, for example, electron coolers for hadron beams, electron-ion colliders, and Free-Electron Lasers (FELs). Superconducting Radio Frequency (SRF) has many advantages over other electron-injector technologies, especially when it is working in CW mode as it offers higher repetition rate. An 112 MHz SRF electron photo-injector (gun) was developed at Brookhaven National Laboratory (BNL) to produce high-brightness and high-bunch-charge bunches for electron cooling experiments. The gun utilizes a Quarter-Wave Resonator …

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Measurement Of Dielectron Invariant Mass Spectra In $Au+Au$ Collisions At $\Sqrt{S_{Nn}}=200gev$ With Hbd In Phenix, Jiayin Sun Dec 2016

Measurement Of Dielectron Invariant Mass Spectra In $Au+Au$ Collisions At $\Sqrt{S_{Nn}}=200gev$ With Hbd In Phenix, Jiayin Sun

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

Dileptons are emitted throughout the entire space-time evolution of heavy ion collisions. Being colorless, these electromagnetic probes do not participate in the final-state strong interactions during the passage through the hot medium, and retain the information on the conditions of their creation. This characteristic renders them valuable tools for studying the properties of the Quark Gluon Plasma created during ultra-relativistic heavy ion collisions. The invariant mass spectra of dileptons contain a wealth of information on every stage of the evolution of heavy ion collisions. At low mass, dilepton spectra consist mainly of light meson decays. The medium modification of the …

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The Study Of Nonequilibrium Dissipative Quantum Dynamics And Its Applications To Energy Transport And Quantum Information Processes, Zhedong Zhang Dec 2016

The Study Of Nonequilibrium Dissipative Quantum Dynamics And Its Applications To Energy Transport And Quantum Information Processes, Zhedong Zhang

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

Nonequilibrium quantum physics is of fundamental importance and interest. It is still an extremely hard issue even in today's theoretical physics because of the lack of the knowledge on the basic theories, like the nonequilibrium quantum statistical mechanics. The recent advances on theory and experiments reveal the essentiality of nonequilibrium quantum dynamics on explaining as well as understanding many interesting phenomenon, i.e. | the ultrafast energy transfer \& long-survived quantum coherence in organic molecules, quantum phase transition and the novel transport properties of superfluid gas at low temperature. Here we will focus on the nonequilibrium quantum dynamics relaxing towards the …

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Searching For Dark Sectors, Yiming Zhong Dec 2016

Searching For Dark Sectors, Yiming Zhong

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

The existence of Dark Matter suggests the presence of a dark sector, consisting of particles neutral under all Standard Model forces. Various “portals†can connect the dark sector to the Standard Model sector. Two popular examples are the vector portal, which gives rise to a “dark photon†(A′), and the Higgs portal, which gives rise to a “dark Higgs†. Such dark forces appear in many well-motivated extensions of the Standard Model. In some cases, they may resolve discrepancies between experimental data and theoretical predictions, such as the muon anomalous magnetic moment. We show that dark sectors and forces can …

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A Study Of Vector Boson Scattering Process In The Semi-Leptonic Final State And Limits On Anomalous Quartic Gauge Coupling, Aungshuman Zaman Dec 2016

A Study Of Vector Boson Scattering Process In The Semi-Leptonic Final State And Limits On Anomalous Quartic Gauge Coupling, Aungshuman Zaman

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

In this dissertation we look into the vector boson scattering process in the semi-leptonic channel using 20.2 $fb^{−1}$ of 2012 proton-proton collision data at $\sqrt{s}$ = 8 TeV coming from the Large Hadron Collider. The final state considered is WVjj (V=W,Z) where the W decays into a charged lepton (electron or muon) and a neutrino and the other vector boson decays hadronically. The analysis requires one charged lepton, missing transverse energy and four jets, two of which are forward jets with a large invariant mass. Expected limits on the anomalous quartic gauge coupling (aQGC) parameters were estimated using Whizard+Pythia8 Monte …

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"The Cradle Of Things": Origins And Ontogenesis In The Late Landscapes Of Gustave Courbet, Nicole Georgopulos Dec 2016

"The Cradle Of Things": Origins And Ontogenesis In The Late Landscapes Of Gustave Courbet, Nicole Georgopulos

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

In the spring of 1864, Gustave Courbet returned to his home region of Franche-Comté and painted a series of landscapes that took as their subjects various natural points of origin: grottoes, caves, waterfalls, etc. Through his loose and expressive facture, Courbet renders visible in these landscapes the ongoing becoming of the world, investigating the nature of origination and evolution. Courbet’s interest in such subjects comes just two years after the publication of the French translation of Charles Darwin’s On the Origin of Species, which irreversibly unsettled the traditional understanding of humankind’s position within the world. The early years of evolutionary …

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Transverse Movements Of The Components Of The Lipid Bilayer, Jamie Lebarron Dec 2016

Transverse Movements Of The Components Of The Lipid Bilayer, Jamie Lebarron

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

Cell membranes are a complex mixture often composed of approximately equal parts lipid and protein molecules. Lipids are amphipathic, having polar headgroups that prefer to associate with water and hydrophobic tails that self-associate away from water. As a result, the lipids in cell membranes exist in the form of a lipid bilayer, with lipid polar headgroups facing outwards towards water and tails grouped together in the middle. Proteins embedded in this bilayer facilitate the movement of molecules across this barrier. The molecules that form the membrane have an asymmetric distribution, with different lipids being preferentially found on one side of …

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Partisanship, Political Information, And Money, Jeeyoung Park Dec 2016

Partisanship, Political Information, And Money, Jeeyoung Park

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

This dissertation contains three parts - three papers. My dissertation tries to bridge the gap between two perspectives: the socio-psychological model and the rational choice model in voting behavior. The first part investigates how partisans behave in the prediction market. Using an agent-based model, my simulation results show that participants’ initial beliefs about a candidate’s winning probability, confirmation biases in accepting information, and monetary incentives strongly increase changes in participants’ beliefs about the electoral outcome captured by price volatility in the prediction market. The second part explores the microfoundation about individuals’ behavioral motivations in evaluating political candidates. My experimental results …

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The Impact Of Campaign Finance On Roll Call Behavior, Voter Perceptions, And Democratic Responsiveness, David Stack Dec 2016

The Impact Of Campaign Finance On Roll Call Behavior, Voter Perceptions, And Democratic Responsiveness, David Stack

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

Levels of partisanship and polarization within Congress are at high levels. However, this development defies the expectation of Downsian models. My dissertation attributes polarization to the activity of political donors. Using a database of over 13.5 million individual donors, I use advanced time series models to show that donors have been increasingly rewarding Republicans who toe the party line. In the second section of my dissertation, I explore how incumbent politicians may be using these campaign contributions to offset any potential electoral penalties for excessive partisanship. My examination of survey evidence shows that incumbents may be using campaign spending to …

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A Comparison Of Two Theoretical Approaches To Addressing Ageism: Education And Extended Contact, Ashley Elizabeth Lytle Dec 2016

A Comparison Of Two Theoretical Approaches To Addressing Ageism: Education And Extended Contact, Ashley Elizabeth Lytle

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

Ageism continues to be a widespread problem and is of increasing concern given the growing older population worldwide and youth-centered focus of many societies. Despite the need for a better understanding of attitudes towards older adults, ageism is a relatively understudied area of social psychology. This dissertation sought, for the first time, to compare two theoretical approaches to addressing ageism: education about aging (providing accurate information about aging) and extended contact (knowledge of positive intergenerational contact) as well as their potential combined impact (education plus extended contact). Across two studies, participants were randomly assigned to one of the four conditions: …

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Characterization Of Structural Defects In Wide Band-Gap Compound Materials For Semiconductor And Opto-Electronic Applications, Ouloide Yannick Goue Dec 2016

Characterization Of Structural Defects In Wide Band-Gap Compound Materials For Semiconductor And Opto-Electronic Applications, Ouloide Yannick Goue

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

Single crystals of binary and ternary compounds are touted to replace silicon for specialized applications in the semiconductor industry. However, the relative high density of structural defects in those crystals has hampered the performance of devices built on them. In order to enhance the performance of those devices, structurally perfect single crystals must be grown. The aim of this thesis is to investigate the interplay between crystal growth process and crystal quality as well as structural defect types and transport property. To this end, the thesis is divided into two parts. The first part provides a general review of the …

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Evolution Of Immiscibly Blended Functionalized Polymers With Respect To Cure Parameters And Formulation, Nicholas Walter Heller Dec 2016

Evolution Of Immiscibly Blended Functionalized Polymers With Respect To Cure Parameters And Formulation, Nicholas Walter Heller

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

Powder coatings are becoming ubiquitous in the coating marketplace due to the absence of solvents in their formulation, but they have yet to see implementation in low-reflectance outdoor applications. This demand could be met by utilizing polymer blends formulated with low loadings of matting agents and pigments. The goal of this research is a thorough characterization of prototype low-reflectance coatings through several analytical techniques. Prototypical thermoset blends consist of functionalized polyurethanes rendered immiscible by differences in polar and hydrogen bonding characteristics, resulting in a surface roughened by droplet domains. Analysis of both pigmented and control clear films was performed. This …

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Estimation Of Stable Distribution And Its Application To Credit Risk, Hua Mo Dec 2016

Estimation Of Stable Distribution And Its Application To Credit Risk, Hua Mo

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

To capture the heavy tails and the volatility clustering of asset returns is always an important topic in Â…nancial market. We studies two projects related to the Alpha Stable distribution and Classical Tempered Stable(CTS) distribution respectively which both have desired properties to accommodate heavy-tails and capture skewness in Â…nancial series. (1) In the major part of the Â…rst project, we introduce the algorithm of indirect inference method. By using the skewed-t distribution as an auxiliary model which is easier to handle, we can estimate the parameters of the Alpha Stable distribution since these two models have the same numbers of …

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Performance Evaluation Of A Dc Direct-Coupled Pv System In Comparison With A Typical Grid-Connected Ac System For A Commercial Building, Utkarshaa Varshney Dec 2016

Performance Evaluation Of A Dc Direct-Coupled Pv System In Comparison With A Typical Grid-Connected Ac System For A Commercial Building, Utkarshaa Varshney

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

With exponential hike in greenhouse gas emissions and depletion of fossil fuels, advancing renewable energy technology is the best available answer to global demands of clean and green energy. Solar Photovoltaic technology, although implemented worldwide, has a large further scope of improvement to create a fully accepted solar-powered society. One such concept can be a DC based photovoltaic system, which enables the use of DC power directly from solar panels without incorporating inverters. This thesis is based on a system-level PV project, which evaluates a newly installed DC direct-coupled system which uses DC power for office LED lighting, in comparison …

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Fabrication Of A Novel Biosensor For Macromolecules Detection Through Molecular Imprinting Technique, Yingjie Yu Dec 2016

Fabrication Of A Novel Biosensor For Macromolecules Detection Through Molecular Imprinting Technique, Yingjie Yu

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

There is an increasing need for precise molecular detection as a diagnostic tool for early identification of diseases, pathogens, and abnormal protein levels in the body. Typical chemical analytical methods are generally costly, unstable, and time-consuming. Molecular imprinting (MI) technique，based on the “lock and key model†, could be a simple method to overcome those shortcomings. In this study, a self-assembled monolayer (SAM) was employed as a platform to fabricate MI biosensor for detection of macromolecules. I demonstrated that, when the monolayer was formed on a rough surface, this method was in fact templating molecules in three dimensions, and hence …

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A Spatio-Temporal Model Of Hunter-Gatherer Foraging Ecology Across The North American Great Plains Throughout The Paleoindian Period: Development Of Biological Theory And Statistical Methods To Link Human Evolutionary Biology, Ecology, And The Archaeological Record, Erik Roque Otárola-Castillo Dec 2016

A Spatio-Temporal Model Of Hunter-Gatherer Foraging Ecology Across The North American Great Plains Throughout The Paleoindian Period: Development Of Biological Theory And Statistical Methods To Link Human Evolutionary Biology, Ecology, And The Archaeological Record, Erik Roque Otárola-Castillo

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

Hunter-gatherers spread to nearly every corner of the planet in large part due to their flexible ability to forage for high-quality foods in diverse environments. The study of human foraging behavior is therefore crucial to understanding the proximate and ultimate factors that have shaped human evolutionary history. Although not necessarily in an evolutionary context, the foraging behavior of Paleoindian hunter-gatherers in North America has been studied for over a century. Researchers have paid particular attention to Paleoindian foragers’ hunting of big game across the grasslands of the Great Plains, shedding light on “what†prey Paleoindians foraged, “where†foraging occurred on …

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Dilation Behavior Of Thermal Spray Coatings, Miryan Lorena Bejarano Dec 2016

Dilation Behavior Of Thermal Spray Coatings, Miryan Lorena Bejarano

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

Thermal Spray (TS) is a very versatile manufacturing process to deposit thick coatings on a variety of substrates. Coatings are used in protective (i.e. wear, chemical attack, high temperature, etc.) and functional (i.e. sensors) applications. TS coatings have a unique lamellar microstructure as a result of the overlapping of millions of molten and partially-molten particles. During processing, high deformation by impact, high temperature, and rapid solidification lead to a complex hierarchical material system that contains a high amount of microstructural defects. The presence of defects in the microstructure contribute to differences in property values in comparison to bulk materials. Thermal …

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Characterization Of Structural Defects In Wide Band-Gap Compound Materials For Semiconductor And Opto-Electronic Applications, Ouloide Yannick Goue Dec 2016

Characterization Of Structural Defects In Wide Band-Gap Compound Materials For Semiconductor And Opto-Electronic Applications, Ouloide Yannick Goue

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

Single crystals of binary and ternary compounds are touted to replace silicon for specialized applications in the semiconductor industry. However, the relative high density of structural defects in those crystals has hampered the performance of devices built on them. In order to enhance the performance of those devices, structurally perfect single crystals must be grown. The aim of this thesis is to investigate the interplay between crystal growth process and crystal quality as well as structural defect types and transport property. To this end, the thesis is divided into two parts. The first part provides a general review of the …

Go to article

Evolution Of Immiscibly Blended Functionalized Polymers With Respect To Cure Parameters And Formulation, Nicholas Walter Heller Dec 2016

Evolution Of Immiscibly Blended Functionalized Polymers With Respect To Cure Parameters And Formulation, Nicholas Walter Heller

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

Powder coatings are becoming ubiquitous in the coating marketplace due to the absence of solvents in their formulation, but they have yet to see implementation in low-reflectance outdoor applications. This demand could be met by utilizing polymer blends formulated with low loadings of matting agents and pigments. The goal of this research is a thorough characterization of prototype low-reflectance coatings through several analytical techniques. Prototypical thermoset blends consist of functionalized polyurethanes rendered immiscible by differences in polar and hydrogen bonding characteristics, resulting in a surface roughened by droplet domains. Analysis of both pigmented and control clear films was performed. This …

Go to article

Performance Evaluation Of A Dc Direct-Coupled Pv System In Comparison With A Typical Grid-Connected Ac System For A Commercial Building, Utkarshaa Varshney Dec 2016

Performance Evaluation Of A Dc Direct-Coupled Pv System In Comparison With A Typical Grid-Connected Ac System For A Commercial Building, Utkarshaa Varshney

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

With exponential hike in greenhouse gas emissions and depletion of fossil fuels, advancing renewable energy technology is the best available answer to global demands of clean and green energy. Solar Photovoltaic technology, although implemented worldwide, has a large further scope of improvement to create a fully accepted solar-powered society. One such concept can be a DC based photovoltaic system, which enables the use of DC power directly from solar panels without incorporating inverters. This thesis is based on a system-level PV project, which evaluates a newly installed DC direct-coupled system which uses DC power for office LED lighting, in comparison …

Go to article

Fabrication Of A Novel Biosensor For Macromolecules Detection Through Molecular Imprinting Technique, Yingjie Yu Dec 2016

Fabrication Of A Novel Biosensor For Macromolecules Detection Through Molecular Imprinting Technique, Yingjie Yu

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

There is an increasing need for precise molecular detection as a diagnostic tool for early identification of diseases, pathogens, and abnormal protein levels in the body. Typical chemical analytical methods are generally costly, unstable, and time-consuming. Molecular imprinting (MI) technique，based on the “lock and key model†, could be a simple method to overcome those shortcomings. In this study, a self-assembled monolayer (SAM) was employed as a platform to fabricate MI biosensor for detection of macromolecules. I demonstrated that, when the monolayer was formed on a rough surface, this method was in fact templating molecules in three dimensions, and hence …

Go to article

A Spatio-Temporal Model Of Hunter-Gatherer Foraging Ecology Across The North American Great Plains Throughout The Paleoindian Period: Development Of Biological Theory And Statistical Methods To Link Human Evolutionary Biology, Ecology, And The Archaeological Record, Erikroque Otárola-Castillo Dec 2016

A Spatio-Temporal Model Of Hunter-Gatherer Foraging Ecology Across The North American Great Plains Throughout The Paleoindian Period: Development Of Biological Theory And Statistical Methods To Link Human Evolutionary Biology, Ecology, And The Archaeological Record, Erikroque Otárola-Castillo

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

Hunter-gatherers spread to nearly every corner of the planet in large part due to their flexible ability to forage for high-quality foods in diverse environments. The study of human foraging behavior is therefore crucial to understanding the proximate and ultimate factors that have shaped human evolutionary history. Although not necessarily in an evolutionary context, the foraging behavior of Paleoindian hunter-gatherers in North America has been studied for over a century. Researchers have paid particular attention to Paleoindian foragers’ hunting of big game across the grasslands of the Great Plains, shedding light on “what†prey Paleoindians foraged, “where†foraging occurred on …

Go to article

Dilation Behavior Of Thermal Spray Coatings, Miryan Lorena Bejarano Dec 2016

Dilation Behavior Of Thermal Spray Coatings, Miryan Lorena Bejarano

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

Thermal Spray (TS) is a very versatile manufacturing process to deposit thick coatings on a variety of substrates. Coatings are used in protective (i.e. wear, chemical attack, high temperature, etc.) and functional (i.e. sensors) applications. TS coatings have a unique lamellar microstructure as a result of the overlapping of millions of molten and partially-molten particles. During processing, high deformation by impact, high temperature, and rapid solidification lead to a complex hierarchical material system that contains a high amount of microstructural defects. The presence of defects in the microstructure contribute to differences in property values in comparison to bulk materials. Thermal …

Go to article

Evolution Of Immiscibly Blended Functionalized Polymers With Respect To Cure Parameters And Formulation, Nicholas Walter Heller Dec 2016

Evolution Of Immiscibly Blended Functionalized Polymers With Respect To Cure Parameters And Formulation, Nicholas Walter Heller

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

Powder coatings are becoming ubiquitous in the coating marketplace due to the absence of solvents in their formulation, but they have yet to see implementation in low-reflectance outdoor applications. This demand could be met by utilizing polymer blends formulated with low loadings of matting agents and pigments. The goal of this research is a thorough characterization of prototype low-reflectance coatings through several analytical techniques. Prototypical thermoset blends consist of functionalized polyurethanes rendered immiscible by differences in polar and hydrogen bonding characteristics, resulting in a surface roughened by droplet domains. Analysis of both pigmented and control clear films was performed. This …

Go to article

Estimation Of Stable Distribution And Its Application To Credit Risk, Hua Mo Dec 2016

Estimation Of Stable Distribution And Its Application To Credit Risk, Hua Mo

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

To capture the heavy tails and the volatility clustering of asset returns is always an important topic in nancial market. We studies two projects related to the Alpha Stable distribution and Classical Tempered Stable(CTS) distribution respectively which both have desired properties to accommodate heavy-tails and capture skewness in nancial series. (1) In the major part of the rst project, we introduce the algorithm of indirect inference method. By using the skewed-t distribution as an auxiliary model which is easier to handle, we can estimate the parameters of the Alpha Stable distribution since these two models have the same numbers of …

Go to article

Performance Evaluation Of A Dc Direct-Coupled Pv System In Comparison With A Typical Grid-Connected Ac System For A Commercial Building, Utkarshaa Varshney Dec 2016

Performance Evaluation Of A Dc Direct-Coupled Pv System In Comparison With A Typical Grid-Connected Ac System For A Commercial Building, Utkarshaa Varshney

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

With exponential hike in greenhouse gas emissions and depletion of fossil fuels, advancing renewable energy technology is the best available answer to global demands of clean and green energy. Solar Photovoltaic technology, although implemented worldwide, has a large further scope of improvement to create a fully accepted solar-powered society. One such concept can be a DC based photovoltaic system, which enables the use of DC power directly from solar panels without incorporating inverters. This thesis is based on a system-level PV project, which evaluates a newly installed DC direct-coupled system which uses DC power for office LED lighting, in comparison …

Go to article

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