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
Accelerator-based neutron source using a cold deuterium target with degenerate electrons (open access)

Accelerator-based neutron source using a cold deuterium target with degenerate electrons

This article discusses recent reports of potential cold deuterium targets.
Date: July 17, 2013
Creator: Phillips, R. E. & Ordonez, Carlos A.
Object Type: Article
System: The UNT Digital Library
Aperture-based antihydrogen gravity experiment: Parallel plate geometry (open access)

Aperture-based antihydrogen gravity experiment: Parallel plate geometry

This article presents an analytical model and a Monte Carlo simulation of an experiment that could be used to determine the direction of the acceleration of antihydrogen due to gravity.
Date: October 24, 2013
Creator: Rocha, J. R.; Hedlof, R. M. & 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
Collective behavior and evolutionary games - An introduction (open access)

Collective behavior and evolutionary games - An introduction

This article is an introduction to a special issue in Chaos, Solitons & Fractals with the goal of attracting submissions that identify unifying principles that describe the essential aspects of collective behavior, and which thus allow for a better interpretation and foster the understanding of the complexity arising in such systems.
Date: June 28, 2013
Creator: Perc, Matjaž & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
Comparative Trace Elemental Analysis in Cancerous and Noncancerous Human Tissues Using PIXE (open access)

Comparative Trace Elemental Analysis in Cancerous and Noncancerous Human Tissues Using PIXE

Article discussing comparative trace elemental analysis in cancerous and noncancerous human tissues using PIXE.
Date: May 16, 2013
Creator: Mulware, Stephen Juma
Object Type: Article
System: The UNT Digital Library
Comparative Trace Elemental Analysis in Cancerous and Noncancerous Human Tissues Using PIXE (open access)

Comparative Trace Elemental Analysis in Cancerous and Noncancerous Human Tissues Using PIXE

This article reviews comparative trace elemental concentrations of cancerous and noncancerous tissues using PIXE.
Date: May 16, 2013
Creator: Mulware, Stephen Juma
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
Energy Conversion During Expansion of a Solid-Particle-Entrained Gas (open access)

Energy Conversion During Expansion of a Solid-Particle-Entrained Gas

This article describes pneumatic energy being converted into solid particle kinetic energy as a solid-particle-entrained gas that flows downward through a vertical nozzle. For the conditions studied, the solid particles serve as a heat exchange medium to enable a gas expansion that is nearly isothermal. Also, the kinetic energy associated with the two-phase fluid is predominantly that associated with subsonic solid-particle motion. The kinetic energy of the solid particles is converted into other forms using a low-speed turbine. A theoretical description of the process is presented, and the initiation of an experimental effort to study the process is described.
Date: January 10, 2013
Creator: Ordonez, Carlos A.; Weathers, Duncan L. & Traum, Matthew J.
Object Type: Article
System: The UNT Digital Library
Hyperbolic metamaterials: new physics behind a classical problem (open access)

Hyperbolic metamaterials: new physics behind a classical problem

This article summarizes earlier theories in the Clemmow's prescription for transformation of the electromagnetic field in hyperbolic media and provides a review of recent developments in this active research area.
Date: June 17, 2013
Creator: Drachev, Vladimir P.; Podolskiy, Viktor A. & Kildishev, Alexander V.
Object Type: Article
System: The UNT Digital Library
Intrinsic electrical transport properties of monolayer silicene and MoSâ‚‚ from first principles (open access)

Intrinsic electrical transport properties of monolayer silicene and MoSâ‚‚ from first principles

Article on intrinsic electrical transport properties of monolayer silicene and MoSâ‚‚ from first principles.
Date: March 15, 2013
Creator: Li, Xiaodong; Mullen, Jeffrey T.; Jin, Zhenghe; Borysenko, Kostyantyn M.; Buongiorno Nardelli, Marco & Kim, Ki Wook
Object Type: Article
System: The UNT Digital Library
Locating Star-Forming Regions in Quasar Host Galaxies (open access)

Locating Star-Forming Regions in Quasar Host Galaxies

This article presents a study of the morphology and intensity of star formation in the host galaxies of eight Palomar-Green quasars using observations with the Hubble Space Telescope.
Date: November 5, 2013
Creator: Young, Jason E.; Eracleous, Michael; Shemmer, Ohad; Netzer, Hagai; Gronwall, Caryl; Lutz, Dieter et al.
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

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
Nanoimprinted plasmonic nanocavity arrays (open access)

Nanoimprinted plasmonic nanocavity arrays

This article demonstrates high resonant absorption of visible light with a plasmonic nanocavity chain structure fabricated through resistless nanoimprinting in metal (RNIM).
Date: June 17, 2013
Creator: Kim, Sangsik; Xuan, Yi; Drachev, Vladimir P.; Varghese, Leo T.; Li, Fan; Qi, Minghao et al.
Object Type: Article
System: The UNT Digital Library
Renewal and memory origin of anomalous diffusion: A discussion of their joint action (open access)

Renewal and memory origin of anomalous diffusion: A discussion of their joint action

Article on the renewal and memory origin of anomalous diffusion and a discussion of their joint action.
Date: December 2, 2013
Creator: Bologna, Mauro; West, Bruce J. & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
Role of committed minorities in times of crisis (open access)

Role of committed minorities in times of crisis

Article discussing the role of committed minorities in time of crisis.
Date: March 4, 2013
Creator: Turalska, Malgorzata; West, Bruce J. & Grigolini, Paolo
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
Statistical analysis of air and sea temperature anomalies (open access)

Statistical analysis of air and sea temperature anomalies

Paper discussing the statistical analysis of air and sea temperature anomalies.
Date: March 11, 2013
Creator: Scafetta, Nicola; Imholt, Timothy; Grigolini, Paolo & Roberts, James A.
Object Type: Paper
System: The UNT Digital Library
A Statistical Relation Between the X-ray Spectral Index and Eddington Ratio of Active Galactic Nuclei in Deep Surveys (open access)

A Statistical Relation Between the X-ray Spectral Index and Eddington Ratio of Active Galactic Nuclei in Deep Surveys

This article presents an investigation into how well the properties of the accretion flow on to a supermassive black hole may be coupled to those of the overlying hot corona.
Date: May 22, 2013
Creator: Brightman, M.; Silverman, John David; Mainieri, Vincenzo; Ueda, Yoshihiro; Schramm, Malte; Matsuoka, Kenta et al.
Object Type: Article
System: The UNT Digital Library