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Polarization in electrostatics and circuits: Computing and visualizing surface charge distributions (open access)

Polarization in electrostatics and circuits: Computing and visualizing surface charge distributions

Article describing an algorithm or computing the detailed surface charge distributions in equilibrium electrostatic situations and in steady-state DC circuits, and discuss the results of the computations of surface charge distributions for several systems.
Date: December 14, 2018
Creator: Chabay, Ruth & Sherwood, Bruce
Object Type: Article
System: The UNT Digital Library
Dual-Band High Efficiency Terahertz Meta-Devices Based on Reflective Geometric Metasurfaces (open access)

Dual-Band High Efficiency Terahertz Meta-Devices Based on Reflective Geometric Metasurfaces

Article proposing a novel reflective building block (unit cell) to work at two arbitrary terahertz frequency bands with independent phase control at each band.
Date: April 18, 2019
Creator: Lin, Yuankun; Wang, Tailei; Xie, Rensheng; Zhu, Shouzheng; Gao, Jianjun; Xin, Mingbo et al.
Object Type: Article
System: The UNT Digital Library
Entropy Balance in the Expanding Universe: A Novel Perspective (open access)

Entropy Balance in the Expanding Universe: A Novel Perspective

The article describes cosmic expansion as correlated with the standpoints of local observers’ co-moving horizons. In keeping with relational quantum mechanics, which claims that quantum systems are only meaningful in the context of measurements, the authors suggest that information gets ergodically “diluted” in our isotropic and homogeneous expanding Universe, so that an observer detects just a limited amount of the total cosmic bits.
Date: April 17, 2019
Creator: Tozzi, Arturo & Peters, James F.
Object Type: Article
System: The UNT Digital Library
Topology of Black Holes’ Horizons (open access)

Topology of Black Holes’ Horizons

Article exploring the topology of black holes.
Date: April 3, 2019
Creator: Tozzi, Arturo & Peters, James F.
Object Type: Article
System: The UNT Digital Library
The XMM-SERVS survey: new XMM–Newton point-source catalogue for the XMM-LSS field (open access)

The XMM-SERVS survey: new XMM–Newton point-source catalogue for the XMM-LSS field

This article presents an X-ray point-source catalogue from the XMM-Large Scale Structure (XMMLSS) survey region, one of the XMM-Spitzer Extragalactic Representative Volume Survey (XMM-SERVS) fields.
Date: April 25, 2018
Creator: Chen, C. -T. J.; Brandt, William Nielsen; Luo, Bin; Ranalli, P.; Yang, G.; Alexander, David M. et al.
Object Type: Article
System: The UNT Digital Library
Waveguide Coupling via Magnetic Gratings with Effective Strips (open access)

Waveguide Coupling via Magnetic Gratings with Effective Strips

This article provides an overview of an approach convenient for describing intermediate gratings for two types of applications: both metafilms and the coupling of incident waves to waveguide modes or diffraction orders.
Date: April 14, 2018
Creator: Roccapriore, Kevin M.; Lyvers, David P.; Brown, Dean P.; Poutrina, Ekaterina; Urbas, Augustine M.; Germer, Thomas A. et al.
Object Type: Article
System: The UNT Digital Library
Mimicking the collective intelligence of human groups as an optimization tool for complex problems (open access)

Mimicking the collective intelligence of human groups as an optimization tool for complex problems

This article presents a novel optimization algorithm belonging to the class of swarm intelligence optimization methods.
Date: April 4, 2018
Creator: De Vincenzo, Ilario; Massari, Giovanni F.; Giannoccaro, Ilaria; Carbone, Giuseppe & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
Coupling of Surface Plasmon Polariton in Al-Doped ZnO with Fabry-Pérot Resonance for Total Light Absorption (open access)

Coupling of Surface Plasmon Polariton in Al-Doped ZnO with Fabry-Pérot Resonance for Total Light Absorption

This article presents finite-difference time-domain (FDTD) simulations on total light absorption (TLA) resulting from the coupling of a surface plasmon polariton (SPP) with Fabry-Pérot (F-P) resonance in a three-layer structure consisting of an AZO square lattice hole array, a spacer, and a layer of silver.
Date: April 27, 2017
Creator: George, David; Adewole, Murthada; Hassan, Safaa; Lowell, David; Cui, Jingbiao; Zhang, Hualiang et al.
Object Type: Article
System: The UNT Digital Library
Holographic Fabrication of Designed Functional Defect Lines in Photonic Crystal Lattice Using a Spatial Light Modulator (open access)

Holographic Fabrication of Designed Functional Defect Lines in Photonic Crystal Lattice Using a Spatial Light Modulator

This article reports the holographic fabrication of designed defect lines in photonic crystal lattices through phase engineering using a spatial light modulator.
Date: April 1, 2016
Creator: Lutkenhaus, Jeffrey; Lowell, David; George, David; Zhang, Hualiang; Lin, Yuankun & Lin, Yuankun
Object Type: Article
System: The UNT Digital Library
Investigation of Structural and Optical Properties of Ag Nanoclusters Formed in Si(100) After Multiple Implantations of Low Energies Ag Ions and Post-Thermal Annealing at a Temperature Below the Ag-Si Eutectic Point (open access)

Investigation of Structural and Optical Properties of Ag Nanoclusters Formed in Si(100) After Multiple Implantations of Low Energies Ag Ions and Post-Thermal Annealing at a Temperature Below the Ag-Si Eutectic Point

This paper investigates the synthesis of Ag NCs in Si(100) substrate by implanting multiple energies and fluences of Ag ions and subsequent thermal annealing.
Date: April 2, 2014
Creator: Dhoubhadel, Mangal; Rout, Bibhudutta; Lakshantha, Wickramaarachchige J.; Das, Sushanta K.; D'Souza, Francis; Glass, Gary A. et al.
Object Type: Paper
System: The UNT Digital Library
The Mammary Gland Carcinogens: The Role of Metal Compounds and Organic Solvents (open access)

The Mammary Gland Carcinogens: The Role of Metal Compounds and Organic Solvents

This article reviews the role of metal compounds and organic solvents in breast cancer development.
Date: April 24, 2013
Creator: Mulware, Stephen Juma
Object Type: Article
System: The UNT Digital Library
The Mammary Gland Carcinogens: The Role of Metal Compounds and Organic Solvents (open access)

The Mammary Gland Carcinogens: The Role of Metal Compounds and Organic Solvents

Article on mammary gland carcinogens and the role of metal compounds and organic solvents.
Date: April 24, 2013
Creator: Mulware, Stephen Juma
Object Type: Article
System: The UNT Digital Library
Accelerator-based fusion with a low temperature target (open access)

Accelerator-based fusion with a low temperature target

This article reports a study of a cold target with a high Fermi energy in light of recent research that points to a new phase of hydrogen, which is hypothesized to be related to metallic hydrogen. It has been shown that if the energy transfer between injected ions and target electrons is sufficiently small, net energy gain can be achieved. As such, the target is considered to be composed of nuclei and delocalized electrons.
Date: April 19, 2013
Creator: Phillips, R. E. & Ordonez, Carlos A.
Object Type: Article
System: The UNT Digital Library
Classical trajectory Monte Carlo code for simulating ion beam focusing or defocusing with magnetic elements modeled as current loops or current lines (open access)

Classical trajectory Monte Carlo code for simulating ion beam focusing or defocusing with magnetic elements modeled as current loops or current lines

Article describes a computational tool that can be used for designing magnetic focusing or defocusing systems. A fully three-dimensional classical trajectory Monte Carlo simulation has been developed.
Date: April 19, 2013
Creator: Lane, Ryan A. & Ordonez, Carlos A.
Object Type: Article
System: The UNT Digital Library
Dual levitated coils for antihydrogen production (open access)

Dual levitated coils for antihydrogen production

Article on theoretical and experimental efforts to use dual levitated coils to confine relatively large, cold, dense non-drifting recombining antihydrogen plasmas. The theoretical effort includes the development of a classical trajectory Monte Carlo simulation of confinement. The experimental effort includes levitation of a NdFeB permanent ring magnet, which produces a magnetic field that is qualitatively similar to the field that would be produced by the two coaxial superconducting magnetic coils.
Date: April 19, 2013
Creator: Wofford, Joshua D. & Ordonez, Carlos A.
Object Type: Article
System: The UNT Digital Library
Electrostatic storage ring with focusing provided by the space charge of an electron plasma (open access)

Electrostatic storage ring with focusing provided by the space charge of an electron plasma

Article describes an electronic storage ring that employs the space charge of an electron plasma for focusing. An advantage of the present concept is that slow ions, or even a stationary ion plasma, can be confined. The concept employs an artificially structured boundary, which is defined at present as one that produces a spatially periodic static field such that the spatial period and range of the field are much smaller than the dimensions of a plasma or charged-particle beam that is confined by the field.
Date: April 19, 2013
Creator: Pacheco, J. L.; Ordonez, Carlos A. & Weathers, Duncan L.
Object Type: Article
System: The UNT Digital Library
Simulation Of An Antihydrogen Gravity Experiment Utilizing Multiple Apertures (open access)

Simulation Of An Antihydrogen Gravity Experiment Utilizing Multiple Apertures

The article presents an analytical model and a Monte Carlo simulation of an antihydrogen gravity experiment that would employ multiple apertures. The model was developed with the primary goal of reducing the experimental run time necessary to determine the direction of free fall acceleration for antimatter in the gravitational field of the Earth. The experiment would confine cryogenic antihydrogen plasma for producing antihydrogen (e.g., by three-body recombination).
Date: April 19, 2013
Creator: Hedlof, R. M. & Ordonez, Carlos A.
Object Type: Article
System: The UNT Digital Library
From self-organized to extended criticality (open access)

From self-organized to extended criticality

Article discussing the criticality of transition processes in neurophysiology.
Date: April 26, 2012
Creator: Lovecchio, Elisa; Allegrini, Paolo; Geneston, Elvis L.; West, Bruce J. & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library

The Growth and Characterization of Aluminum Nitride (AlN) Nanowires

This paper discusses research on the growth and characterization of aluminum nitride (AlN) nanowires.
Date: April 19, 2012
Creator: Herro, Alicia & Philipose, Usha
Object Type: Paper
System: The UNT Digital Library

The Growth and Characterization of Aluminum Nitride (AlN) Nanowires [Presentation]

Presentation for the 2012 University Scholars Day at the University of North Texas discussing research on the growth and characterization of aluminum nitride (AIN) nanowires.
Date: April 19, 2012
Creator: Herro, Alicia & Philipose, Usha
Object Type: Presentation
System: The UNT Digital Library

Latex Ribbons Properties and Wave Velocities

Presentation for the 2012 University Scholars Day at the University of North Texas discussing research on latex ribbons properties and wave velocities.
Date: April 19, 2012
Creator: Shelton, Brock & Matteson, Samuel E.
Object Type: Presentation
System: The UNT Digital Library

Trace Element Analysis of Mineral Water Samples through XRF and ICP-MS

Poster presentation for the 2012 University Scholars Day at the University of North Texas discussing a trace element analysis of mineral water samples through XRF and ICP-MS.
Date: April 19, 2012
Creator: Dash, Akshar; Thurber, Casey; Kummari, Venkata C.; Verbeck, Guido F.; Duggan, Jerome L. & Rout, Bibhudutta
Object Type: Poster
System: The UNT Digital Library
Spatially Periodic Electromagnetic Force Field For Plasma Confinement and Control (open access)

Spatially Periodic Electromagnetic Force Field For Plasma Confinement and Control

In this article, a theoretical understanding is developed of the single-particle reflection properties of a force field, considering the incident charged particles to have a non-drifting, isotropic velocity distribution. Classical trajectory Monte Carlo simulations and analytical modeling are employed. The initiation of an experimental effort to study force fields is described.
Date: April 17, 2012
Creator: Ordonez, Carlos A.; Pacheco, J. L. & Weathers, Duncan L.
Object Type: Article
System: The UNT Digital Library
The 4Ms Chandra Deep Field-South Number Counts Apportioned By Source Class: Pervasive Active Galactic Nuclei and the Ascent of Normal Galaxies (open access)

The 4Ms Chandra Deep Field-South Number Counts Apportioned By Source Class: Pervasive Active Galactic Nuclei and the Ascent of Normal Galaxies

This article presents cumulative and differential number-count measurements for the recently completed 4 Ms Chandra Deep Field-South survey.
Date: April 9, 2012
Creator: Lehmer, Bret; Xue, Yongquan; Brandt, William Nielsen; Alexander, David M.; Bauer, Franz E.; Brusa, Marcella et al.
Object Type: Article
System: The UNT Digital Library