Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2016

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 2761 - 2790 of 41052

Full-Text Articles in Entire DC Network

Urbanization And The Formation Of Modern Nation-States In The Turko-Persian World, Can Ersoy Dec 2016

Urbanization And The Formation Of Modern Nation-States In The Turko-Persian World, Can Ersoy

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

Formation of modern states has been studied by numerous scholars over the last four decades however, the particular role of urbanization in this process have received considerably less attention. The few existing works that do focus on this issue exclusively examine the European experience and explain the interaction between cities and emerging states within that historical framework. This dissertation examines socio-political dynamics of urbanization and urbanism in the Turko-Persian geography during the establishment of modern nation-states in order to identify the ways, in which the dynamics affected the ensuing state-society relations. For this purpose I conducted a comparative historical analysis …

Go to article

Palmitoylation Of The Nmda Receptor And Psd95 Utilizing Phosphopantetheinyl Transferases, Victor Chang Dec 2016

Palmitoylation Of The Nmda Receptor And Psd95 Utilizing Phosphopantetheinyl Transferases, Victor Chang

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

Signal transduction relies on the proper localization of proteins to properly transfer signals throughout the cell. The cell membrane serves as a vital interface for the proper localization of proteins. Posttranslational modifications cause proteins to become targeted to membranes. One such modification is palmitoylation, the addition of a palmitic acid to a cysteine of a protein. Within the neuron, a large protein complex called the postsynaptic density receives upstream signals at the synapse. Many signaling proteins within the postsynaptic density are known to require palmitoylation for proper trafficking and function. Two such examples are the N-methyl-D-Aspartate receptor (NMDAR) and Post …

Go to article

Functional Consequences Of A Putative Mek1 Phosphorylation Site On Rad17 During Meiosis In Saccharomyces Cerevisiae, Madeeha Rahat Dec 2016

Functional Consequences Of A Putative Mek1 Phosphorylation Site On Rad17 During Meiosis In Saccharomyces Cerevisiae, Madeeha Rahat

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

Meiosis is a specialized type of cell division, which produces haploid daughter cells from diploid parental cells. Meiotic recombination is initiated by the introduction of programmed DNA double strand breaks (DSBs), which are catalyzed by an evolutionarily conserved, meiosis-specific endonuclease, Spo11. Meiotic cells monitor the repair of Spo11-induced DSBs via the meiotic recombination checkpoint (MRC), which is activated in response to DSBs made during meiotic prophase. The MRC ensures proper repair of DSBs prior to entry into the first meiotic division. The Mec1 checkpoint kinase is recruited to resected DSBs via the 9-1-1 complex containing Rad17, Mec3 and Ddc1. Mec1 …

Go to article

Phic31 Integrase As A More Efficient Method Of Transgenesis In Zebrafish, Andrew Scortea Dec 2016

Phic31 Integrase As A More Efficient Method Of Transgenesis In Zebrafish, Andrew Scortea

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

Zebrafish transgenesis is conventionally performed via the tol2 transposable element system as it is the most straightforward, providing quick and easy transgenesis. Despite being commonly used in the zebrafish community, tol2 mediated transgenesis has issues that cause workflow slowdowns and delays. The biggest of these issues are the random nonspecific integrations which can occur multiple times within a genome. In order to generate a stable transgenic line with a single insertion, one must perform several generations of outcrosses and subsequent screening. Thus, while tol2 transgenesis is effective at generating founder animals, a considerable amount of time and labor is required …

Go to article

Multiscale Particle-Based Modeling Of Mechanotransduction Process In Flow-Induced Platelet Activation Using Dissipative Particle Dynamics And Coarse Grained Molecular Dynamics, Chao Gao Dec 2016

Multiscale Particle-Based Modeling Of Mechanotransduction Process In Flow-Induced Platelet Activation Using Dissipative Particle Dynamics And Coarse Grained Molecular Dynamics, Chao Gao

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

Thrombosis in cardiovascular diseases and prosthetic cardiovascular devices can be potentiated by pathological flow patterns that enhance hemostatic responses including platelet activation, aggregation, and adhesion. Platelets upon activation react to pathological shear stresses with complex biochemical and morphological changes, aggregate, and adhere to blood vessels or device surfaces to form thrombi. Computational modeling and simulation are extensively employed to study the shear-induced platelet activation. Numerical simulations of this complex process based on Computational Fluid Dynamics (CFD) treat blood as a continuum and solve the Navier-Stokes equations to resolve the process to μm scales level. Due to the limited scales range, …

Go to article

The Investigation Of Enoyl-Coa Hydratases In Cholesterol Metabolism Of Mycobacterium Tuberculosis, Jungwon Jang Dec 2016

The Investigation Of Enoyl-Coa Hydratases In Cholesterol Metabolism Of Mycobacterium Tuberculosis, Jungwon Jang

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

Mycobacterium tuberculosis (Mtb) is the bacterium that causes tuberculosis (TB) in humans. TB is one of the deadliest infectious diseases in the world. Mtb resides in the lipid- enriched environment of the host and metabolizes cholesterol as a carbon source using its own enzymes. Among the total 4000 genes of Mtb, 250 genes correlate to the enzymatic reactions of lipid utilization. The degradation of cholesterol side chain is characterized by three cycles of β-oxidation. Each of the β-oxidation cycles involves hydration of the dehydrogenated cholesterol intermediate substrate. Rv3538 and EchA19 are expected to function as an enoyl-CoA hydratase in the …

Go to article

Meld Application On Refining Dock Results, Cong Liu Dec 2016

Meld Application On Refining Dock Results, Cong Liu

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

In order to bridge the computational gap between DOCK and MD-based methods, a pipeline was designed to combine external information derived from DOCK with replica exchange molecular dynamics using MELD, an algorithm recently developed by our lab. Our goal was to predict the lowest free energy binding pose within the DOCK ensemble, therefore enabling us to refine DOCK results in cases where the correct structure is incorrectly scored. Our method was tested on 8 such ‘scoring failures’ found in the DOCK database SB2012. Three protocols of extracting structural information from DOCK ensembles were designed and tested. Crystal-like poses were correctly …

Go to article

Dynamics Of Alcohol And Ketone Photooxidation Reactions On Tio2(110), Matthew David Kershis Dec 2016

Dynamics Of Alcohol And Ketone Photooxidation Reactions On Tio2(110), Matthew David Kershis

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

Titanium dioxide (TiO$_2$) has attracted significant interest over the years as a photocatalyst for the photooxidation of organic compounds. This type of chemistry finds numerous practical applications in areas such as environmental remediation and self-cleaning coatings. The work described herein employs pump-probe laser techniques to study the photooxidation dynamics of acetone, butanone, ethanol and 2-propanol over a model TiO$_2$(110) photocatalyst. Studies of model catalysts under ideal, ultra-high vacuum (UHV) conditions allow for detailed, mechanistic information to be obtained. A common characteristic of all these photooxidation reactions is that they proceed by ejection of methyl or ethyl (in the case of …

Go to article

Green Synthesis, Characterization, And Application Of Metal-Based Nanomaterials, Crystal Lewis Dec 2016

Green Synthesis, Characterization, And Application Of Metal-Based Nanomaterials, Crystal Lewis

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

Metal-based nanomaterials have attracted significant research interest due to their unique size-dependent optical, magnetic, electronic, thermal, mechanical, and chemical properties as compared with their bulk counterparts. These advantageous and tailorable properties render these materials as ideal candidates for catalysis, photovoltaics, and even biomedical applications. However, nanomaterials are typically synthesized via chemical or physical processes, which are continuing to rise in cost, complexity, and toxicity. As a result, ‘milder’ and more environmentally benign nanoscale synthetic methodologies, particularly U-tube double diffusion, molten salt, and hydrothermal techniques, have been utilized to mitigate for these drawbacks. Moreover, these efficient and facile techniques coupled with …

Go to article

Mechanistic Studies In Heterogeneous Catalysis Via In Situ Ft-Ir Spectroscopy, Joseph William Magee Dec 2016

Mechanistic Studies In Heterogeneous Catalysis Via In Situ Ft-Ir Spectroscopy, Joseph William Magee

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

Dependence on a finite supply of fossil fuel-based energy sources has provided motivation for research in and development of alternative, renewable energy sources. A strong candidate as an alternative fuel is ethanol. Ethanol has a high energy density, low toxicity, and as a liquid, compatibility with the existing fuel delivery infrastructure. When considering the possibility of using ethanol as a fuel, both synthetic methods to produce ethanol and reactions that convert ethanol to energy should be optimized. One method to produce ethanol is through the conversion of synthesis gas, or syngas, (CO + H2). Currently, syngas conversion is used to …

Go to article

Heterolithic Branched Liquid Crystalline Materials Prepared Via The Passerini Three-Component Reaction, Shuang Song Dec 2016

Heterolithic Branched Liquid Crystalline Materials Prepared Via The Passerini Three-Component Reaction, Shuang Song

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

Precisely defined and multifunctional molecular architectures that can form liquid crystalline mesophases are part of a new generation of functional supramolecular materials. Liquid crystalline compounds (mesogens) form phases of matter intermediate between crystalline solids and isotropic liquids (mesophases). The presence of molecular order in a fluid phase has led to the widespread use of conventional liquid crystal mesogens in displays and optoelectronic devices. Combining different types of mesogens or mesogens with other functional components to create heterolithic star-branched or dendritic architectures is of interest as a strategy to engineer liquid crystalline materials with new structural and functional properties. Heterolithic branched …

Go to article

Overcoming Element Quality Dependence Of Finite Element Methods, Rebecca Conley Dec 2016

Overcoming Element Quality Dependence Of Finite Element Methods, Rebecca Conley

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

The finite element methods (FEM) are important techniques in engineering for solving partial differential equations, especially on complex geometries. One limitation of the classical FEM is its heavy dependence on element shape quality for stability and good performance. We introduce the Adaptive Extended Stencil Finite Element Method (AES-FEM) as a means to overcome this dependence on element shape quality. Our method replaces the traditional basis functions with a set of generalized Lagrange polynomial (GLP) basis functions, which we construct using local weighted least-squares approximations. The method preserves the theoretical framework of FEM, and allows imposing essential boundary conditions and integrating …

Go to article

Dermal Uptake Directly From Air Under Transient Conditions: Advances In Modeling And Comparisons With Experimental Results For Human Subjects, G. C. Morrison, C. J. Weschler, G. Bekö Dec 2016

Dermal Uptake Directly From Air Under Transient Conditions: Advances In Modeling And Comparisons With Experimental Results For Human Subjects, G. C. Morrison, C. J. Weschler, G. Bekö

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

To better understand the dermal exposure pathway, we enhance an existing mechanistic model of transdermal uptake by including skin surface lipids (SSL) and consider the impact of clothing. Addition of SSL increases the overall resistance to uptake of SVOCs from air but also allows for rapid transfer of SVOCs to sinks like clothing or clean air. We test the model by simulating di-ethyl phthalate (DEP) and di-n-butyl phthalate (DnBP) exposures of six bare-skinned (Weschler et al. 2015, Environ. Health Perspect., 123, 928) and one clothed participant (Morrison et al. 2016, J. Expo. Sci. Environ. Epidemiol., 26, 113). The model predicts …

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, 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 …

Go to article

Numerical Modeling Of Hydrodynamic Instabilities And Their Impact On Mix In Inertial Confinement Fusion, Jeremy Melvin Dec 2016

Numerical Modeling Of Hydrodynamic Instabilities And Their Impact On Mix In Inertial Confinement Fusion, Jeremy Melvin

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

The simulation campaign to model Inertial Confinement Fusion (ICF) capsules has come a long way since experiments with the potential to achieve net energy gain began in 2010. A remaining area of uncertainty is the modeling of instability growth and mixing of ablator material into the core, degrading the capsules. We explore the instability growth by applying techniques that have led to a proven track record of validation: the addition of a front tracking (FT) algorithm and physical diffusion models. For the first time, we have integrated our FT algorithm through an API into an external Rad-Hydro code FLASH, from …

Go to article

Integrating Mobile Agents And Distributed Sensors In Wireless Sensor Networks, Jiemin Zeng Dec 2016

Integrating Mobile Agents And Distributed Sensors In Wireless Sensor Networks, Jiemin Zeng

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

As computers become more ubiquitous in the prominent phenomenon of the Internet of Things, we encounter many unique challenges in the field of wireless sensor networks. A wireless sensor network is a group of small, low powered sensors with wireless capability to communicate with each other. The goal of these sensors, also called nodes, generally is to collect some information about their environment and report it back to a base station. Depending on the nature of the nodes or the environment, they may be placed in a deterministic pattern, deployed randomly, or mobile (i.e. cars on a highway). Due to …

Go to article

Innovations In High Dimensional Data Exploration, Representation And Generation, Bing Wang Dec 2016

Innovations In High Dimensional Data Exploration, Representation And Generation, Bing Wang

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

Data with many attributes have become commonplace in a wide range of domains. In these data, the most interesting relations are often multivariate and are generally confusing to most people. Efforts have been made to design proper tools to recognize those high dimensional relationships reliably but those tools are often far off from making use of the innate 3D scene understanding capabilities of the human visual system. We present a framework that eases this barrier by design, called the Subspace Voyager. It decomposes a high-dimensional data space into a continuum of generalized 3D subspaces. Analysts can then explore these 3D …

Go to article

Uncertainty Quantification For Physical And Numerical Diffusion Models In Inertial Confinement Fusion Simulations, Verinder S. Rana Dec 2016

Uncertainty Quantification For Physical And Numerical Diffusion Models In Inertial Confinement Fusion Simulations, Verinder S. Rana

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

This thesis concerns simulations of Inertial Confinement Fusion. Inertial confinement is carried out in a large scale facility at National Ignition Facility. The experiments have failed to reproduce design calculations, and so uncertainty quantification of calculations is an important asset. Uncertainties can be classified as aleatoric or epistemic. This thesis is concerned with aleatoric uncertainty quantification. Among the many uncertain aspects that affect the simulations, we have narrowed our study of possible uncertainties. The first source of uncertainty we present is the amount of pre-heating of the fuel done by hot electrons. The second source of uncertainty we consider is …

Go to article

Turbulent Mixing In Richtmyer-Meshkov Instability Using Front-Tracking, Pooja Rao Dec 2016

Turbulent Mixing In Richtmyer-Meshkov Instability Using Front-Tracking, Pooja Rao

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

Turbulent mixing from hydrodynamical instabilities, such as Richtmyer-Meshkov (RMI) and Rayleigh-Taylor (RTI) instabilities, plays a critical role in numerous applications ranging from performance degradation in inertial confinement capsules to supernova explosions. At high Reynolds numbers (Re), for which experimental data is not available, numerical simulations are paramount in studying these instabilities. However, the algorithmic differences due to differences in numerical modeling often give solutions that are converged but not unique, that is, different codes converge to different solutions. Thus, to establish the credibility of the simulation in an objective manner, it is necessary to fulfill three main requirements: (1) verification …

Go to article

Essays On The Medicare Enrollment And Medicare Costs Of Older Americans, Yuanyuan Deng Dec 2016

Essays On The Medicare Enrollment And Medicare Costs Of Older Americans, Yuanyuan Deng

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

This dissertation consists of two chapters. The 1999 to 2010 data from the Medicare Current Beneficiary Survey are used in this dissertation. The first chapter empirically analyze the role of labor supply and Medicare secondary payer on Medicare costs, taking into account the recent evolution of labor supply and the implementation of the 1983 Social Security reform. The labor force participation rate of Americans 65 years and older has sharply increased since the mid-1990s. These increases have been accompanied by an increasing number of Older Americans covered by current employer-provided health insurance plans. For those covered workers, Medicare becomes secondary …

Go to article

Essays On Internal Migration In Developing Countries, Tamara Gurevich Dec 2016

Essays On Internal Migration In Developing Countries, Tamara Gurevich

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

This thesis investigates the determinants and implications of migration decisions made by individuals in households, using Indonesia as a case study. The thesis consists of two chapters. In each chapter I study respectively the effects of local recent flood events on individuals' and households' decision to leave their origin community, and the effects such migration decisions may have on subsequent health of migrant household members. In chapter 2 of this dissertation, I quantify the effect of migration on subsequent health of migrants using a potential outcomes framework design that exploits exogenous impacts of floods on migration to reduce concerns regarding …

Go to article

Essays On The Impact Of Health Information Technology On Patient Outcomes, Ryan Michael Mckenna Dec 2016

Essays On The Impact Of Health Information Technology On Patient Outcomes, Ryan Michael Mckenna

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

This dissertation consists of three chapters surrounding the impacts of health information technology systems (HIT) on hospital inpatient outcomes. In an effort to eliminate inefficiencies in the US health care sector, policymakers have made a concerted effort to encourage hospitals and physicians to adopt health information technology systems. In Chapter 2, I construct a unique dataset on health information technology adoption and health outcomes in New York State to conduct a hospital level analysis identifying the impact of adopting HIT on inpatient outcomes (rates of adverse drug events and severity-adjusted mortality). Unlike previous studies, the patient population is not restricted …

Go to article

Education Dynamics In A Developing Country: Evidence From Indonesia, Elif Deniz Sumengen Dec 2016

Education Dynamics In A Developing Country: Evidence From Indonesia, Elif Deniz Sumengen

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

There is an urgent need for upper secondary-level and above educated people in Indonesia. According to a recent report, Indonesian companies cannot fill 50% of their entry level positions. To increase the educational attainment, government has been implementing various polices, such as school construction program, compulsory education and allocating 20% of its budget to education, but inadequate enrollment at upper secondary and tertiary levels and the quality of education still remain as big problems. To shed a light on these urgent and recent problems, I ask four questions: a) What is the effect of school quality on tertiary attainment? b) …

Go to article

Detecting Fraud In Public Procurement, Yajun Wang Dec 2016

Detecting Fraud In Public Procurement, Yajun Wang

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

Fraud in public procurement is a big problem in public sector all over the world, and is very difficult to detect in empirical studies. Common fraud schemes include corruption, collusive bidding, failure to provide the required quality, and false statements, etc. In this paper, I employed game theory, machine learning, and statistical methods to detect fraud risk in Federal Procurement Contract Data, and studied the relationship of fraud, competition and contract types. In the first section, I studied a procurement game and found that if the firms' types are close enough to each other, their strategies regarding whether or not …

Go to article

On Mirna-Mrna Network Extraction And Ultra-Fast Nucleotide Barcodes Clustering Algorithm, Lu Zhao Dec 2016

On Mirna-Mrna Network Extraction And Ultra-Fast Nucleotide Barcodes Clustering Algorithm, Lu Zhao

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

This thesis consists of two topics: (1) discovery of microRNA/mRNA regulatory networks on essential thrombocytosis (ET), and (2) a novel ultrafast clustering algorithm to count nucleotide barcode and amplicon reads with errors. The objective of the first study is to discover miRNA-mRNA regulatory networks related to ET, a chronic myeloproliferative disorder with an unregulated surplus of platelets. Complications of ET include stroke, heart attack, and formation of blood clots. While the genetic basis of ET has been studied to some extent, no direct diagnostic test is available to date. In this study, we aim to identify novel ET-related miRNA-mRNA regulatory …

Go to article

Log-Linear Model Based Tree And Latent Variable Model For Count Data, Yuan Zhao Dec 2016

Log-Linear Model Based Tree And Latent Variable Model For Count Data, Yuan Zhao

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

Events that occur randomly over time or space result in count data. Poisson models are widely used for analyses. However, simple log-linear forms are often insufficient for complex relationship between variables. Thus we study tree-structured log-linear models and latent variables models for count data. First, we consider extending Poisson regression for independent observations. Decision trees exhibit the advantage of interpretation. Constant fits are too simple to interpret within strata nonetheless. We hence propose to embed log-linear models to decision trees, and use negative binomial distribution for overdispersion. Second, we consider latent variable models for point process observation in neuroscience. Neurons …

Go to article

Classification Of Fetal Heart Rate Signals By Deep Learning, Xuan Chen Dec 2016

Classification Of Fetal Heart Rate Signals By Deep Learning, Xuan Chen

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

In the course of delivery, a fetus may suffer from oxygen deficiency due to the intensive pressure changes. Electronic fetal monitoring (EFM) system has been widely used in obstetrics, to provide continuous information to clinicians for making decisions and in preparing for delivery. There has been many efforts to build automated systems to analyze fetal heart rates (FHRs) and offer clinical supports. In this thesis, our goal is to introduce the most recent and popular machine learning method, deep learning, for FHR classification. We first introduce the preliminaries of FHR classification methods and the database used in our experiments. Then, …

Go to article

Analog Circuit Design Knowledge Mining And Circuit Causal Information Modeling, Fanshu Jiao Dec 2016

Analog Circuit Design Knowledge Mining And Circuit Causal Information Modeling, Fanshu Jiao

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

This thesis proposes novel approaches for analog circuit design knowledge mining and circuit causal information modeling. In particular, knowledge mining discovers and decomposes analog circuit design knowledge into three components: (1) a conceptual hierarchy for a group of circuit topologies, (2) circuits' performance capabilities (including trade-offs and bottlenecks), and (3) circuits' design causal reasoning strategies. Causal reasoning strategies lead to the development of reasoning-based topology synthesis and design verification, thus bring new perspective to existing approaches. Extended from performance capabilities, the thesis proposes circuit causal information modeling, which models relations of parameters deciding circuit performance attributes and coupling with other …

Go to article

Part 1. A Study On Delay Tolerant Network Algorithm For Vanet Part 2. An Efficient Mu-Mimo Precoding Operation With Zf And Mmse, Taek Keun Lyu Dec 2016

Part 1. A Study On Delay Tolerant Network Algorithm For Vanet Part 2. An Efficient Mu-Mimo Precoding Operation With Zf And Mmse, Taek Keun Lyu

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

Part 1. In this paper, we learn how to select the Delay Tolerant Network (DTN) routing protocols according to dynamic network environment in wireless ad hoc network. Basically, providing access to the Internet or other network services with low mobile density is quite difficult for disconnection and long delay. One of the solutions in this problem is using Vehicular Ad-hoc Networks (VANET) with DTN. There are a variety of DTNs, relying on the different network environment. We categorize the DTNs routing protocols. Also, we use simulations to compare that DTN routing protocols lead to reduce end-to-end delay and higher message …

Go to article

Investigating The Tolerance Of Wirelessly Powered Charge-Recycling Logic To Power-Clock Phase Difference Deviations, Sushil Panda Dec 2016

Investigating The Tolerance Of Wirelessly Powered Charge-Recycling Logic To Power-Clock Phase Difference Deviations, Sushil Panda

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

Internet-of-things (IoT) has emerged as an exciting application domain for semiconductor electronics. Recently, a new circuit design framework has been developed where charge-recycling circuits were leveraged to wirelessly power IoT based devices. Most of the existing charge-recycling circuits require multiple AC signals (referred to as power-clock signals) with certain phase difference to operate. The primary objective of this thesis is to investigate the tolerance of wirelessly powered charge-recycling circuits to non-ideal phase differences among power-clock signals. The operation principle of the most common charge-recycling (also referred to as adiabatic) circuits is described. The power consumed by efficient charge recovery logic …

Go to article

First Prev Next Last