21 Matching Results

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Fractional calculus ties the microscopic and macroscopic scales of complex network dynamics (open access)

Fractional calculus ties the microscopic and macroscopic scales of complex network dynamics

Paper discussing fractional calculus tying the microscopic and macroscopic scales of complex network dynamics.
Date: September 10, 2014
Creator: West, Bruce J.; Turalska, Malgorzata & Grigolini, Paolo
Object Type: Paper
System: The UNT Digital Library
Efficient multiband and broadband cross polarization converters based on slotted Lshaped nanoantennas (open access)

Efficient multiband and broadband cross polarization converters based on slotted Lshaped nanoantennas

This article presents highly efficient reflective cross polarization converters based on metamaterials operating in the infrared regime.
Date: November 14, 2014
Creator: Ding, Jun; Arigong, Bayaner; Ren, Han; Zhou, Mi; Shao, Jin; Lin, Yuankun et al.
Object Type: Article
System: The UNT Digital Library
Holographic fabrication of 3D photonic crystals through interference of multi-beams with 4 + 1, 5 + 1 and 6 + 1 configurations (open access)

Holographic fabrication of 3D photonic crystals through interference of multi-beams with 4 + 1, 5 + 1 and 6 + 1 configurations

This article fabricates 3D photonic crystals or quasi-crystals through single beam and single optical element based holographic lithography.
Date: September 9, 2014
Creator: George, David; Lutkenhaus, Jeffrey; Lowell, David; Moazzezi, Mojtaba; Adewole, Murthada; Philipose, Usha et al.
Object Type: Article
System: The UNT Digital Library
Engineering Metal Oxide Nanostructures for the Fiber Optic Sensor Platform (open access)

Engineering Metal Oxide Nanostructures for the Fiber Optic Sensor Platform

This article presents an effective integration scheme of nanostructured SnO₂ with the fiber optic platform for chemical sensing applications based on evanescent optical interactions.
Date: January 30, 2014
Creator: Poole, Zsolt; Ohodnicki, Paul; Chen, Rongzhang; Lin, Yuankun & Chen, Kevin P.
Object Type: Article
System: The UNT Digital Library
Artificially Structured Boundary for a high purity ion trap or ion source (open access)

Artificially Structured Boundary for a high purity ion trap or ion source

This article proposes a plasma enclosed by an Artificially Structured Boundary (ASB) as an alternative to existing ion source assemblies. In accelerator applications, many ion sources can have a limited lifetime or frequent service intervals due to sputtering and eventual degradation of the ion source assembly. Ions are accelerated towards the exit canal of positive ion sources, whereas, due to the biasing scheme, electrons or negative ions are accelerated towards the back of the ion source assembly.
Date: March 27, 2014
Creator: Pacheco, J. L.; Ordonez, Carlos A. & Weathers, Duncan L.
Object Type: Article
System: The UNT Digital Library
Resonant excitation of coupled Rayleigh waves in a short and narrow fluid channel clad between two identical metal plates (open access)

Resonant excitation of coupled Rayleigh waves in a short and narrow fluid channel clad between two identical metal plates

This article studies the transmission of ultrasonic waves through a slit between two water immersed brass plates for sub-wavelength plate thicknesses and slit apertures.
Date: July 14, 2014
Creator: Garcia-Chocano, Victor M.; Lopez-Rios, Tomas; Krokhin, Arkadii A. & Sanchez-Dehesa, Jose
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
A RESTful API for exchanging materials data in the AFLOWLIB.org consortium (open access)

A RESTful API for exchanging materials data in the AFLOWLIB.org consortium

This article discusses the introduction of an Application Program Interface (API) following REST principles for the AFLOWLIB.org materials data repositories consortium.
Date: July 24, 2014
Creator: Taylor, Richard H.; Rose, Frisco; Toher, Cormac; Levy, Ohad; Yang, Kesong; Buongiorno Nardelli, Marco et al.
Object Type: Article
System: The UNT Digital Library
Ion Beam Materials Analysis and Modifications At keV to MeV Energies at the University of North Texas (open access)

Ion Beam Materials Analysis and Modifications At keV to MeV Energies at the University of North Texas

This paper provides an overview of the Ion Beam Modification and Analysis Laboratory facilities and some of the current research projects.
Date: February 25, 2014
Creator: Rout, Bibhudutta; Dhoubhadel, Mangal; Poudel, Prakash R.; Kummari, Venkata C.; Lakshantha, Wickramaarachchige J.; Manuel, J. E. et al.
Object Type: Article
System: The UNT Digital Library
Classical trajectory Monte Carlo simulations of particle confinement using dual levitated coils (open access)

Classical trajectory Monte Carlo simulations of particle confinement using dual levitated coils

This article investigates the particle confinement properties of plasma confinement systems that employ dual levitated magnetic coils using classical trajectory Monte Carlo simulations.
Date: July 14, 2014
Creator: Lane, Ryan A. & Ordonez, Carlos A.
Object Type: Article
System: The UNT Digital Library
Tuneable complementary metamaterial structures based on graphene for single and multiple transparency windows (open access)

Tuneable complementary metamaterial structures based on graphene for single and multiple transparency windows

Article describes a study examining novel graphene-based tunable plasmonic metamaterials featuring single and multiple transparency windows.
Date: August 22, 2014
Creator: Ding, Jun; Arigong, Bayaner; Ren, Han; Zhou, Mi; Shao, Jin; Lu, Meng et al.
Object Type: Article
System: The UNT Digital Library
Magnetobound positronium and protonium (open access)

Magnetobound positronium and protonium

This article investigates the formation of magnetobound positronium and protonium via classical trajectory simulations of binary point charge interactions in an external magnetic field. The results of computer simulations of the fully three-dimensional trajectories of classical and non-relativistic point charges with the same mass, equal charge magnitude, and opposite sign are reported. The simulations show the formation of magnetobound positronium and protonium. The results yield formation cross sections, which are compared to analytical expressions. Additionally, the results reveal that magnetobound states drift across magnetic field lines.
Date: August 27, 2014
Creator: Correa, J. R. & Ordonez, Carlos A.
Object Type: Article
System: The UNT Digital Library
Methods and Devices for Electromagnetically Tuning Acoustic Media (open access)

Methods and Devices for Electromagnetically Tuning Acoustic Media

Patent relating to methods and devices for electromagnetically tuning acoustic media.
Date: May 2, 2012
Creator: Neogi, Arup & Walker, Ezekiel
Object Type: Patent
System: The UNT Digital Library
Effect of noise and detector sensitivity on a dynamical process: Inverse power law and Mittag-Leffler interevent time survival probabilities (open access)

Effect of noise and detector sensitivity on a dynamical process: Inverse power law and Mittag-Leffler interevent time survival probabilities

Article on the effect of noise and detector sensitivity on a dynamical process and the inverse power law and Mittag-Leffler interevent time survival probabilities.
Date: February 10, 2014
Creator: Pramukkul, Pensri; Svenkeson, Adam & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
On The Performance of Quasar Reverberation Mapping in the Era of Time-Domain Photometric Surveys (open access)

On The Performance of Quasar Reverberation Mapping in the Era of Time-Domain Photometric Surveys

This article quantitatively assesses, by means of comprehensive numerical simulations, the ability of broadband photometric surveys to recover the broad emission line region size in quasars under various observing conditions and for a wide range of object properties.
Date: February 2, 2014
Creator: Chelouche, Doron; Shemmer, Ohad; Cotlier, Gabriel I.; Barth, Aaron J. & Rafter, Stephen E.
Object Type: Article
System: The UNT Digital Library
Exploratory X-Ray Monitoring of Luminous Radio-Quiet Quasars at High Redshift: Initial Results (open access)

Exploratory X-Ray Monitoring of Luminous Radio-Quiet Quasars at High Redshift: Initial Results

This article presents initial results from an exploratory X-ray monitoring project of two groups of comparably luminous radio-quiet quasars.
Date: January 17, 2014
Creator: Shemmer, Ohad; Brandt, William Nielsen; Paolillo, Maurizio; Kaspi, Shai; Vignali, Christian; Stein, Matthew S. et al.
Object Type: Article
System: The UNT Digital Library
Tunable Polymer-Based Sonic Structures (open access)

Tunable Polymer-Based Sonic Structures

Patent relating to methods and devices for controlling the propagation of sound and particularly to tunable polymer-based sonic structures.
Date: November 14, 2013
Creator: Walker, Ezekiel; Neogi, Arup & Cai, Tong
Object Type: Patent
System: The UNT Digital Library
Star Formation and Black Hole Growth at z ≃4.8 (open access)

Star Formation and Black Hole Growth at z ≃4.8

This article reports Herschel/SPIRE, Spitzer and Wide-field Infrared Survey Explorer obervations of 44 z ≃ 4.8 optically selected active galactic nuclei.
Date: May 29, 2014
Creator: Netzer, Hagai; Mor, Rivay; Trakhtenbrot, Benny; Shemmer, Ohad & Lira, Paulina
Object Type: Article
System: The UNT Digital Library
Phase space of positron trajectories exiting a charged particle source through a magnetic field point cusp (open access)

Phase space of positron trajectories exiting a charged particle source through a magnetic field point cusp

This article presents a configuration of magnetic fields using properties of cylindrically symmetric permanent magnets as a candidate to produce a high purity charged particle source or trap. Cylindrically symmetric hollow permanent magnets produce magnetic field point cusps on the axis of symmetry. A magnetic field point cusp reflects all particles that lie outside a narrow region of phase space, a region dependent on particle kinetic energies and on the magnetic field intensity.
Date: December 30, 2013
Creator: Kiester, A. S.; Pacheco, J. L.; Ordonez, Carlos A. & Weathers, Duncan L.
Object Type: Article
System: The UNT Digital Library
Frequency up-conversion in Lasing Without Inversion (open access)

Frequency up-conversion in Lasing Without Inversion

This article suggests the possibility of frequency up-conversion in lasing without inversion.
Date: December 11, 2014
Creator: Davuluri, Sankar
Object Type: Article
System: The UNT Digital Library
Pulsed cooperative backward emissions from non-degenerate atomic transitions in sodium (open access)

Pulsed cooperative backward emissions from non-degenerate atomic transitions in sodium

Article describes study which examines backward cooperative emissions from a dense sodium atomic vapor.
Date: October 9, 2014
Creator: Thompson, Jonathan V.; Ballmann, Charles W.; Cai, Han; Yi, Zhenhuan; Rostovtsev, Yuri V.; Sokolov, Alexei V. et al.
Object Type: Article
System: The UNT Digital Library