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Search For Gravitational Waves Associated With Gamma-Ray Bursts During The First Advanced Ligo Observing Run And Implications For The Origin Of Grb 150906b, Benjamin P. Abbott, Marco Cavaglia, For Full List Of Authors, See Publisher's Website. May 2017

Search For Gravitational Waves Associated With Gamma-Ray Bursts During The First Advanced Ligo Observing Run And Implications For The Origin Of Grb 150906b, Benjamin P. Abbott, Marco Cavaglia, For Full List Of Authors, See Publisher's Website.

Physics Faculty Research & Creative Works

We present the results of the search for gravitational waves (GWs) associated with γ-ray bursts detected during the first observing run of the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO). We find no evidence of a GW signal for any of the 41 γ-ray bursts for which LIGO data are available with sufficient duration. For all γ-ray bursts, we place lower bounds on the distance to the source using the optimistic assumption that GWs with an energy of were emitted within the-Hz band, and we find a median 90% confidence limit of 71 Mpc at 150 Hz. For the subset of …

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Enhancement Of Heat Transfer Coefficient Using Fe₂O₃-Water Nanofluids, Nasser Zouli, S. A. M. Mohammed, Muthanna H. Al-Dahhan May 2017

Enhancement Of Heat Transfer Coefficient Using Fe₂O₃-Water Nanofluids, Nasser Zouli, S. A. M. Mohammed, Muthanna H. Al-Dahhan

Chemical and Biochemical Engineering Faculty Research & Creative Works

In this work, we developed a local heat transfer probe that can measure the heat transfer coefficient to study the effect of the nanofluid with various concentrations and size of nanoparticles on the local heat transfer coefficient in a developed separate effect experimental setup.Water with iron (III) oxide (Fe₂O₃) nanoparticles were used as the nanofluids flowing through the test section. The nanoparticle sizes of the Fe₂O₃ were varying between 20 and 40nm. The concentrations for the different nanoparticle sizes were ranged between 0 and 0.09 % in volume fractions. The results show that use of aqueous Fe₂O₃ nanoparticles can significantly …

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The Role Of Urinary Pteridines As Disease Biomarkers, Casey Burton, Yinfa Ma May 2017

The Role Of Urinary Pteridines As Disease Biomarkers, Casey Burton, Yinfa Ma

Chemistry Faculty Research & Creative Works

Pteridines and their derivatives function as intermediates in the metabolism of several vitamins and cofactors, and their relevance to disease has inspired new efforts to study their roles as disease biomarkers. Recent analytical advances, such as the emergence of sensitive mass spectrometry techniques, new workflows for measuring pteridine derivatives in their native oxidation states and increased multiplexing capacities for the simultaneous determination of many pteridine derivatives, have enabled researchers to explore the roles of urinary pteridines as disease biomarkers at much lower levels with greater accuracy than with previous technologies or methods. As a result, urinary pteridines are being increasingly …

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Multi-Objective Dynamic Economic Dispatch With Demand Side Management Of Residential Loads And Electric Vehicles, Mohammad Rasoul Narimani, Fnu Maigha, Jhi-Young Joo, Mariesa Crow May 2017

Multi-Objective Dynamic Economic Dispatch With Demand Side Management Of Residential Loads And Electric Vehicles, Mohammad Rasoul Narimani, Fnu Maigha, Jhi-Young Joo, Mariesa Crow

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, a multi-objective optimization method based on the normal boundary intersection is proposed to solve the dynamic economic dispatch with demand side management of individual residential loads and electric vehicles. The proposed approach specifically addresses consumer comfort through acceptable appliance deferral times and electric vehicle charging requirements. The multi-objectives of minimizing generation costs, emissions, and energy loss in the system are balanced in a Pareto front approach in which a fuzzy decision making method has been implemented to find the best compromise solution based on desired system operating conditions. The normal boundary intersection method is described and validated.

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Infrared Metasurfaces Created With Off-Normal Incidence Microsphere Photolithography, Chuang Qu, Edward C. Kinzel May 2017

Infrared Metasurfaces Created With Off-Normal Incidence Microsphere Photolithography, Chuang Qu, Edward C. Kinzel

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Fabricating metasurfaces over large areas at low costs remains a critical challenge to their practical implementation. This paper reports on the use of microsphere photolithography (MPL) to create infrared metasurfaces by changing the angle-of-incidence of the illumination to steer the photonic jet. The displacement of the photonic jet is shown to scale with the diameter of the microsphere while the exposure dose scales with the square of the microsphere diameter. This process is robust in the presence of local defects in the microsphere lattice. The paper demonstrates patterning split ring resonators and tripole based metasurfaces using MPL, which are fabricated …

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The Covalent Interaction Between Dihydrogen And Gold: A Rotational Spectroscopic Study Of H₂-Aucl, Daniel A. Obenchain, Derek S. Frank, Garry S. Grubbs, Herbert M. Pickett, Stewart E. Novick May 2017

The Covalent Interaction Between Dihydrogen And Gold: A Rotational Spectroscopic Study Of H₂-Aucl, Daniel A. Obenchain, Derek S. Frank, Garry S. Grubbs, Herbert M. Pickett, Stewart E. Novick

Chemistry Faculty Research & Creative Works

The pure rotational transitions of H2-AuCl have been measured using a pulsed-jet cavity Fourier transform microwave spectrometer equipped with a laser ablation source. The structure was found to be T-shaped, with the H-H bond interacting with the gold atom. Both 35Cl and 37Cl isotopologues have been measured for both ortho and para states of H2. Rotational constants, quartic centrifugal distortion constants, and nuclear quadrupole coupling constants for gold and chlorine have been determined. The use of the nuclear spin-nuclear spin interaction terms Daa, Dbb, and Dcc for H2 were required …

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Common Treatments And Procedures Used For Fractures Of The Distal Radius And Scaphoid: A Review, Basel A. Khader, Mark R. Towler May 2017

Common Treatments And Procedures Used For Fractures Of The Distal Radius And Scaphoid: A Review, Basel A. Khader, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

The distal radius and the scaphoid are the most commonly injured carpal bones among both active adults and the osteoporotic elderly. The purpose of surgical treatment is to restore form and function to the wrist. Depending on the nature of the fracture, either topical procedures or invasive surgery can be applied. This article critiques the treatments currently used for fixation of wrist fractures in order to drive the development of new materials to improve patient outcomes.

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Dermal Uptake Of Phthalates From Clothing: Comparison Of Model To Human Participant Results, Glenn Morrison, C. J. Weschler, G. Bekö May 2017

Dermal Uptake Of Phthalates From Clothing: Comparison Of Model To Human Participant Results, Glenn Morrison, C. J. Weschler, G. Bekö

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In this research, we extend a model of transdermal uptake of phthalates to include a layer of clothing. When compared with experimental results, this model better estimates dermal uptake of diethyl phthalate and di-n-butyl phthalate (DnBP) than a previous model. The model predictions are consistent with the observation that previously exposed clothing can increase dermal uptake over that observed in bare-skin participants for the same exposure air concentrations. The model predicts that dermal uptake from clothing of DnBP is a substantial fraction of total uptake from all sources of exposure. For compounds that have high dermal permeability coefficients, dermal uptake …

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The Role Of Ceramic And Glass Science Research In Meeting Societal Challenges: Report From An Nsf-Sponsored Workshop, Katherine T. Faber, Tewodros Asefa, Monika Backhaus-Ricoult, Richard K. Brow, Julie Y. Chan, Shen Dillon, William Fahrenholtz, For Full List Of Authors, See Publisher's Website. May 2017

The Role Of Ceramic And Glass Science Research In Meeting Societal Challenges: Report From An Nsf-Sponsored Workshop, Katherine T. Faber, Tewodros Asefa, Monika Backhaus-Ricoult, Richard K. Brow, Julie Y. Chan, Shen Dillon, William Fahrenholtz, For Full List Of Authors, See Publisher's Website.

Materials Science and Engineering Faculty Research & Creative Works

Under the sponsorship of the U.S. National Science Foundation, a workshop on emerging research opportunities in ceramic and glass science was held in September 2016. Reported here are proceedings of the workshop. The report details eight challenges identified through workshop discussions: Ceramic processing: Programmable design and assembly; The defect genome: Understanding, characterizing, and predicting defects across time and length scales; Functionalizing defects for unprecedented properties; Ceramic flatlands: Defining structure-property relations in free-standing, supported, and confined two-dimensional ceramics; Ceramics in the extreme: Discovery and design strategies; Ceramics in the extreme: Behavior of multimaterial systems; Understanding and exploiting glasses and melts under …

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Autonomous Mobile Sensor Placement In Complex Environments, Novella Bartolini, Tiziana Calamoneri, Stefano Ciavarella, Thomas La Porta, Simone Silvestri May 2017

Autonomous Mobile Sensor Placement In Complex Environments, Novella Bartolini, Tiziana Calamoneri, Stefano Ciavarella, Thomas La Porta, Simone Silvestri

Computer Science Faculty Research & Creative Works

In this article, we address the problem of autonomously deploying mobile sensors in an unknown complex environment. In such a scenario, mobile sensors may encounter obstacles or environmental sources of noise, so that movement and sensing capabilities can be significantly altered and become anisotropic. Any reduction of device capabilities cannot be known prior to their actual deployment, nor can it be predicted. We propose a new algorithm for autonomous sensor movements and positioning, called DOMINO (DeplOyment of Mobile Networks with Obstacles). Unlike traditional approaches, DOMINO explicitly addresses these issues by realizing a grid-based deployment throughout the Area of Interest (AoI) …

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Novel Complementary Metasurfaces For The Orbital Angular Momentum Generation, Menglin L.N. Chen, Li Jun Jiang, Wei E.I. Sha May 2017

Novel Complementary Metasurfaces For The Orbital Angular Momentum Generation, Menglin L.N. Chen, Li Jun Jiang, Wei E.I. Sha

Electrical and Computer Engineering Faculty Research & Creative Works

Besides amplitude, phase and polarization, wavefront is an important property of electromagnetic (EM) waves. EM waves with twisted wavefronts are known to carry orbital angular momentum (OAM). In this paper, a complementary-type metasurface is proposed to generate an OAM beam at microwave regime. Two metasurfaces that can produce OAM of order 2 and 4 are designed. By using our novel design methods, which are based on circuit model and dyadic Green's function, a high conversion efficiency has been achieved with a very low profile.

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Intensity Control Of Individual Dbd Plasma Filament. I. Experiment With A Needle Electrode, M. C. Paliwoda, J. L. Rovey May 2017

Intensity Control Of Individual Dbd Plasma Filament. I. Experiment With A Needle Electrode, M. C. Paliwoda, J. L. Rovey

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Filamentary volume dielectric barrier discharge (DBD) produces patterned plasma structures that are currently being explored for reconfigurable metamaterial applications. In this work, the presence and intensity of a single filament (within an array of filaments) are controlled by biasing a low voltage needle electrode by less than 7% of the driving voltage. The current, voltage, and time-averaged normalized light intensity were measured while varying the needle voltage through self-biasing resistors. For a 7.5 kV, 3.2 kHz DBD in air, the needle-controlled filament intensity varies from 80% to 0% of the light intensity of surrounding filaments. When the biased voltage prevents …

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Intensity Control Of Individual Dbd Plasma Filament. Ii. Fundamental Physical Mechanism, M. C. Paliwoda, J. L. Rovey May 2017

Intensity Control Of Individual Dbd Plasma Filament. Ii. Fundamental Physical Mechanism, M. C. Paliwoda, J. L. Rovey

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Filamentary volume dielectric barrier discharge (DBD) produces patterned plasma structures that are currently being explored for reconfigurable metamaterial applications. Previous work has demonstrated control of the presence and intensity of a single DBD plasma filament (within an array of filaments) by biasing a low voltage needle electrode. The results were attributed to redistributed charge inside the DBD due to the modified electric field created by the needle electrode. In the present work, results from a 3D electrodynamic field simulation bolster this argument. Results show that increasing needle bias voltage causes changes in the transverse electric field structure, resulting in redistribution …

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Investigating Process-Structure Relations Of Zno Nanofiber Via Electrospinning Method, Ehsan Ghafari, Yining Feng, Yao Liu, Ian T. Ferguson, Na Lu May 2017

Investigating Process-Structure Relations Of Zno Nanofiber Via Electrospinning Method, Ehsan Ghafari, Yining Feng, Yao Liu, Ian T. Ferguson, Na Lu

Electrical and Computer Engineering Faculty Research & Creative Works

1D ZnO nanofibers were fabricated in this study using the electrospinning method through sol-gel approach. The effects of fabrication processing parameters on the nanofibers size have been systematically investigated. The higher concentration of the polymer resulted in a broader distribution of the nanofibers diameter due to non-uniform ejection of the fluid jet. The results indicated that an increase in annealing temperature resulted in a lower diameter size and more uniformity of the nanofiber due to decomposition of PVA. The DSC result confirms that an annealing temperature higher than 480 °C is required to remove the PVA and fully decompose the …

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The Missouri Miner, April 27, 2017 Apr 2017

The Missouri Miner, April 27, 2017

The Missouri Miner Newspaper

No abstract provided.

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Surface Waves Extraction And Their Effect On Effective Material Parameters Of Metamaterials, Xiaoyan Y.Z. Xiong, Li (Lijun) Jun Jiang, Wei E.I. Sha Apr 2017

Surface Waves Extraction And Their Effect On Effective Material Parameters Of Metamaterials, Xiaoyan Y.Z. Xiong, Li (Lijun) Jun Jiang, Wei E.I. Sha

Electrical and Computer Engineering Faculty Research & Creative Works

We investigate the influence of the finite width of the metamaterial slabs. The surface waves excited in finite-width slabs are numerically extracted by the rigorous coupled-wave analysis method. The magnitudes and decay rates of surface waves are analyzed for different materials and geometries. A general homogenization method based on the analysis of appropriately defined macroscopic fields in metamaterial cells is proposed to retrieve the effective material parameters as functions of position. The effects of surface waves on effective material parameters are studied.

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Effects Of Yttria Concentration And Microstructure On Electric Breakdown Of Yttria Stabilized Zirconia, Oratai Jongprateep, Vladimir Petrovsky, Fatih Dogan Apr 2017

Effects Of Yttria Concentration And Microstructure On Electric Breakdown Of Yttria Stabilized Zirconia, Oratai Jongprateep, Vladimir Petrovsky, Fatih Dogan

Materials Science and Engineering Faculty Research & Creative Works

Ceramic materials have great potentials for capacitor application. However, low breakdown strength of the materials remains a key challenge for development of high-performance capacitors. In this study, yttria stabilized zirconia (YSZ) were fabricated and tested for breakdown strength. YSZ samples with 3, 8, and 10 mol% yttria were carefully processed to control grain size and porosity level. Experimental results revealed that breakdown strength as high as 2 MV/cm could be achieved. The breakdown strength was not significantly affected by porosity level, but it was by yttria concentration. Relationship among yttria concentration, residual porosity and breakdown strength is discussed in this …

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A Deep Learning Framework For Automated Vesicle Fusion Detection, Haohan Li, Zhaozheng Yin, Yingke Xu Apr 2017

A Deep Learning Framework For Automated Vesicle Fusion Detection, Haohan Li, Zhaozheng Yin, Yingke Xu

Computer Science Faculty Research & Creative Works

Quantitative analysis of vesicle-plasma membrane fusion events in the fluorescence microscopy, has been proven to be important in the vesicle exocytosis study. In this paper, we present a framework to automatically detect fusion events. First, an iterative searching algorithm is developed to extract image patch sequences containing potential events. Then, we propose an event image to integrate the critical image patches of a candidate event into a single-image joint representation as the input to Convolutional Neural Networks (CNNs). According to the duration of candidate events, we design three CNN architectures to automatically learn features for the fusion event classification. Compared …

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Faculty Senate Minutes Apr. 20, 2017, Missouri University Of Science And Technology Faculty Senate Apr 2017

Faculty Senate Minutes Apr. 20, 2017, Missouri University Of Science And Technology Faculty Senate

Minutes & Agendas

No abstract provided.

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The Missouri Miner, April 20, 2017 Apr 2017

The Missouri Miner, April 20, 2017

The Missouri Miner Newspaper

No abstract provided.

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Three Essays On The Efficiency Of Carbon Emission Trading Programs, Yishu Zhou Apr 2017

Three Essays On The Efficiency Of Carbon Emission Trading Programs, Yishu Zhou

Economics Faculty Research & Creative Works

Using individual level data from electricity generators, my dissertation empirically investigates the effectiveness of existing regional environmental policies in the U.S. electricity wholesale markets aiming to reduce CO2 emissions. Big drop of natural gas price and limited magnitude and variation of CO2 allowance prices make the contribution of CO2 cap and trade programs questionable. Given the complexity of the electricity markets, the central of my research is to decompose the co-existing various effects on individual firms' emissions and evaluate the performance of current regional regulations. I particularly study the Regional Greenhouse Gas Initiative (RGGI), which regulates power …

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Nanoselective Area Growth Of Defect-Free Thick Indium-Rich Ingan Nanostructures On Sacrificial Zno Templates, Renaud Puybaret, David J. Rogers, Youssef El Gmili, Suresh Sundaram, Matthew B. Jordan, Xin Li, Gilles Patriarche, Ferechteh H. Teherani, Eric V. Sandana, Philippe Bove, Paul L. Voss, Ryan Mcclintock, Manijeh Razeghi, Ian Ferguson Apr 2017

Nanoselective Area Growth Of Defect-Free Thick Indium-Rich Ingan Nanostructures On Sacrificial Zno Templates, Renaud Puybaret, David J. Rogers, Youssef El Gmili, Suresh Sundaram, Matthew B. Jordan, Xin Li, Gilles Patriarche, Ferechteh H. Teherani, Eric V. Sandana, Philippe Bove, Paul L. Voss, Ryan Mcclintock, Manijeh Razeghi, Ian Ferguson

Electrical and Computer Engineering Faculty Research & Creative Works

Nano selective area growth (NSAG) by metal organic vapor phase epitaxy of high-quality InGaN nanopyramids on GaN-coated ZnO/c-sapphire is reported. Nanopyramids grown on epitaxial low-temperature GaN-on-ZnO are uniform and appear to be single crystalline, as well as free of dislocations and V-pits. They are also indium-rich (with homogeneous 22% indium incorporation) and relatively thick (100 nm). These properties make them comparable to nanostructures grown on GaN and AlN/Si templates, in terms of crystallinity, quality, morphology, chemical composition and thickness. Moreover, the ability to selectively etch away the ZnO allows for the potential lift-off and transfer of the InGaN/GaN nanopyramids onto …

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Sophorolipid Butyl Ester Diacetate Does Not Affect Macrophage Polarization But Enhances Astrocytic Glial Fibrillary Acidic Protein Expression At Micromolar Concentrations In Vitro, Alexis M. Ziemba, Manoj K. Gottipati, Filbert Totsingan, Cheryl M. Hanes, Richard A. Gross, Michelle R. Lennartz, Ryan J. Gilbert Apr 2017

Sophorolipid Butyl Ester Diacetate Does Not Affect Macrophage Polarization But Enhances Astrocytic Glial Fibrillary Acidic Protein Expression At Micromolar Concentrations In Vitro, Alexis M. Ziemba, Manoj K. Gottipati, Filbert Totsingan, Cheryl M. Hanes, Richard A. Gross, Michelle R. Lennartz, Ryan J. Gilbert

Chemical and Biochemical Engineering Faculty Research & Creative Works

Peritoneal macrophages (PMACs) and spinal cord astrocytes were exposed to varying concentrations of soluble sophorolipid butyl ester diacetate (SLBEDA) in vitro. Macrophages and astrocytes demonstrated no decrease in viability in response to SLBEDA. Studying pro- and anti-inflammatory genes, PMACs did not show a shift toward a pro-inflammatory phenotype. However, at higher concentrations (3 and 30 μM), astrocytes showed an increase in their expression of glial acidic fibrillary protein. This novel category of compounds poses low risk to PMAC and astrocyte viability; however, the effect on PMAC polarization and astrocyte reactivity requires more elucidation.

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Mixing Of Spin And Orbital Angular Momenta Via Second-Harmonic Generation In Plasmonic And Dielectric Chiral Nanostructures, Xiaoyan Y.Z. Xiong, Ahmed Al-Jarro, Li (Lijun) Jun Jiang, Nicolae C. Panoiu, Wei E.I. Sha Apr 2017

Mixing Of Spin And Orbital Angular Momenta Via Second-Harmonic Generation In Plasmonic And Dielectric Chiral Nanostructures, Xiaoyan Y.Z. Xiong, Ahmed Al-Jarro, Li (Lijun) Jun Jiang, Nicolae C. Panoiu, Wei E.I. Sha

Electrical and Computer Engineering Faculty Research & Creative Works

We present a theoretical study of the characteristics of the nonlinear spin-orbital angular momentum coupling induced by second-harmonic generation in plasmonic and dielectric nanostructures made of centrosymmetric materials. In particular, the connection between the phase singularities and polarization helicities in the longitudinal components of the fundamental and second-harmonic optical fields and the scatterer symmetry properties are discussed. By in-depth comparison between the interaction of structured optical beams with plasmonic and dielectric nanostructures, we have found that all-dielectric and plasmonic nanostructures that exhibit magnetic and electric resonances have comparable second-harmonic conversion efficiency. In addition, mechanisms for second-harmonic enhancement for single and …

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The Missouri Miner, April 13, 2017 Apr 2017

The Missouri Miner, April 13, 2017

The Missouri Miner Newspaper

No abstract provided.

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Stability And Dynamics Of Dark-Bright Soliton Bound States Away From The Integrable Limit, Garyfallia C. Katsimiga, Jan Stockhofe, Panagiotis G. Kevrekidis, Peter Schmelcher Apr 2017

Stability And Dynamics Of Dark-Bright Soliton Bound States Away From The Integrable Limit, Garyfallia C. Katsimiga, Jan Stockhofe, Panagiotis G. Kevrekidis, Peter Schmelcher

Physics Faculty Research & Creative Works

The existence, stability, and dynamics of bound pairs of symbiotic matter waves in the form of dark-bright soliton pairs in two-component mixtures of atomic Bose-Einstein condensates is investigated. Motivated by the tunability of the atomic interactions in recent experiments, we explore in detail the impact that changes in the interaction strengths have on these bound pairs by considering significant deviations from the integrable limit. It is found that dark-bright soliton pairs exist as stable configurations in a wide parametric window spanning both the miscible and the immiscible regime of interactions. Outside this parameter interval, two unstable regions are identified and …

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13th Annual Undergraduate Research Conference Winners, Missouri University Of Science And Technology Apr 2017

13th Annual Undergraduate Research Conference Winners, Missouri University Of Science And Technology

Undergraduate Research Conference at Missouri S&T

No abstract provided.

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13th Annual Undergraduate Research Conference Abstract Book, Missouri University Of Science And Technology Apr 2017

13th Annual Undergraduate Research Conference Abstract Book, Missouri University Of Science And Technology

Undergraduate Research Conference at Missouri S&T

No abstract provided.

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Early Detection Of Diseases Using Electronic Health Records Data And Covariance-Regularized Linear Discriminant Analysis, Jiang Bian, Laura E. Barnes, Guanling Chen, Haoyi Xiong Apr 2017

Early Detection Of Diseases Using Electronic Health Records Data And Covariance-Regularized Linear Discriminant Analysis, Jiang Bian, Laura E. Barnes, Guanling Chen, Haoyi Xiong

Computer Science Faculty Research & Creative Works

The availability of Electronic Health Records (EHR) in health care settings provides terrific opportunities for early detection of patients' potential diseases. While many data mining tools have been adopted for EHR-based disease early detection, Linear Discriminant Analysis (LDA) is one of the most widely used statistical prediction methods. To improve the performance of LDA for early detection of diseases, we proposed to leverage CRDA - Covariance-Regularized LDA classifiers on top of diagnosis-frequency vector data representation. Specifically, CRDA employs a sparse precision matrix estimator derived based on graphical lasso to boost the accuracy of LDA classifiers. Algorithm analysis demonstrates that the …

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The Missouri Miner, April 6, 2017 Apr 2017

The Missouri Miner, April 6, 2017

The Missouri Miner Newspaper

No abstract provided.

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