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High-pressure low-symmetry phases of cesium halides (open access)

High-pressure low-symmetry phases of cesium halides

In this article, the relative stability of different high-pressure phases of various cesium halides is studied from first principles and analyzed using the Landau theory of phase transitions.
Date: April 1, 1995
Creator: Buongiorno Nardelli, Marco; Baroni, Stefano & Giannozzi, Paolo
System: The UNT Digital Library
Ion exchanger in the brain: Quantitative analysis of perineuronally fixed anionic binding sites suggests diffusion barriers with ion sorting properties (open access)

Ion exchanger in the brain: Quantitative analysis of perineuronally fixed anionic binding sites suggests diffusion barriers with ion sorting properties

This article proposes that fixed charge-densities in the brain are involved in regulating ion mobility, the volume fraction of extracellular space and the viscosity of matrix components.
Date: December 1, 2015
Creator: Morawski, Markus; Reinert, Tilo; Meyer-Klaucke, Wolfram; Wagner, Friedrich E.; Tröger, Wolfgang; Reinert, Anja et al.
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
System: The UNT Digital Library
A New Way to Understand and Address Women’s Health in the Context of Complex Systems: Self-organizing Criticality (open access)

A New Way to Understand and Address Women’s Health in the Context of Complex Systems: Self-organizing Criticality

Article proposes applying concepts from nonlinear science developed and employed by physicists, economists, and meteorologists to women's health issues.
Date: January 1, 2016
Creator: Mancuso, Peggy; Liu, Fuqin; Restrepo, Elizabeth; Hamilton, Patricia; Grigolini, Paolo & Zou, Lin
System: The UNT Digital Library
A New Way to Understand and Address Women's Health in the Context of Complex Systems: Self-organizing Criticality (open access)

A New Way to Understand and Address Women's Health in the Context of Complex Systems: Self-organizing Criticality

This article examines how self-organizing criticality can assist in answering complex questions in health and health care systems.
Date: January 1, 2016
Creator: Mancuso, Peggy; Liu, Fuqin; Restrepo, Elizabeth; Hamilton, Patricia; Grigolini, Paolo & Zou, Lin
System: The UNT Digital Library
The observation of silicon nanocrystals in siloxene (open access)

The observation of silicon nanocrystals in siloxene

This article discusses the observation of silicon nanocrystals in siloxene using high resolution transmission electron microscopy.
Date: May 1, 1994
Creator: Pinizzotto, Russell F.; Yang, H.; Pérez, José M. & Coffer, J. L.
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.
System: The UNT Digital Library
Fullerene Coalescence in Nanopeapods: A Path to Novel Tubular Carbon (open access)

Fullerene Coalescence in Nanopeapods: A Path to Novel Tubular Carbon

Article on fullerene coalescence in nanopeapods, which is responsible for forming stable zeppelinlike carbon molecules.
Date: July 1, 2003
Creator: Hernández, E.; Meunier, Vincent; Smith, B. W.; Rurali, R.; Terrones, Humberto; Buongiorno Nardelli, Marco et al.
System: The UNT Digital Library
K-shell x-ray-production cross sections in 6C, 8O, 9F, 11Na, 12Mg, and 13Al, by 0.75- to 4.5-MeV protons (open access)

K-shell x-ray-production cross sections in 6C, 8O, 9F, 11Na, 12Mg, and 13Al, by 0.75- to 4.5-MeV protons

Article discussing K-shell x-ray-production cross sections in 6C, 8O, 9F, 11Na, 12Mg, and 13AI, by 0.75- to 4.5-MeV protons.
Date: November 1, 1991
Creator: Yu, Y. C.; McNeir, M. R.; Weathers, Duncan L.; Duggan, Jerome L.; McDaniel, Floyd Del. (Floyd Delbert), 1942- & Lapicki, Gregory
System: The UNT Digital Library
Carbon K-shell x-ray and Auger-electron production in hydrocarbons and carbon oxides by 0.6-2.0-MeV protons (open access)

Carbon K-shell x-ray and Auger-electron production in hydrocarbons and carbon oxides by 0.6-2.0-MeV protons

Article discussing research on carbon K-shell x-ray and Auger-electron production in hydrocarbons and carbon oxides by 0.6-2.0-MeV protons.
Date: May 1, 1987
Creator: Bhalla, R. P.; McDaniel, Floyd Del. (Floyd Delbert), 1942- & Lapicki, Gregory
System: The UNT Digital Library
A unified, contemporary approach to teaching energy in introductory physics (open access)

A unified, contemporary approach to teaching energy in introductory physics

Article proposes a more coherent, contemporary approach to the teaching of energy in introductory physics courses that offers students a principled way to avoid confusions.
Date: July 1, 2019
Creator: Chabay, Ruth; Sherwood, Bruce & Titus, Aaron
System: The UNT Digital Library
Ionised outflows in z ~ 2.4 quasar host galaxies (open access)

Ionised outflows in z ~ 2.4 quasar host galaxies

This article presents a kinematical analysis of the [OIII]λ5007 emission line observed in six high-luminosity quasars at z ~ 2.4.
Date: August 1, 2015
Creator: Carniani, Stefano; Marconi, Alessandro; Maiolino, Roberto; Balmaverde, Barbara; Brusa, Marcella; Cano-Díaz, Mariana et al.
System: The UNT Digital Library
Uncoupling system and environment simulation cells for fast-scaling modeling of complex continuum embeddings (open access)

Uncoupling system and environment simulation cells for fast-scaling modeling of complex continuum embeddings

Article describes how continuum solvation models are becoming increasingly relevant in condensed matter simulations, allowing to characterize materials interfaces in the presence of wet electrified environments at a reduced computational cost with respect to all atomistic simulations. However, some challenges with the implementation of these models in plane-wave simulation packages still persists, and to address these challenges, the authors present the implementation of a double-cell formalism, in which the simulation cell used for the continuum environment is uncoupled from the one used for the electronic-structure simulation of the quantum-mechanical system.
Date: August 1, 2023
Creator: Medrano, G.; Bainglass, E. & Andreussi, O.
System: The UNT Digital Library
First Principles Study of the Optical Emission of Cadmium Yellow: Role of Cadmium Vacancies (open access)

First Principles Study of the Optical Emission of Cadmium Yellow: Role of Cadmium Vacancies

This article studies the role of structural defects in the CdS-based cadmium yellow paint to explain the origin of its deep trap states optical emission.
Date: June 1, 2018
Creator: Giacopetti, Laura; Nevin, Austin; Comelli, Daniela; Valentini, Gianluca; Buongiorno Nardelli, Marco & Satta, Alessandra
System: The UNT Digital Library
Bold-Independent Computational Entropy Assesses Functional Donut-Like Structures in Brain fMRI Images (open access)

Bold-Independent Computational Entropy Assesses Functional Donut-Like Structures in Brain fMRI Images

This article introduces a novel technique of fMRI images analysis, called computational proximity method, i.e., nucleus clustering in Voronoï tessellations.
Date: February 1, 2017
Creator: Peters, James F.; Ramanna, Sheela; Tozzi, Arturo & Inan, Ebubekir
System: The UNT Digital Library
Quantum Irreversibility and Chaos (open access)

Quantum Irreversibility and Chaos

This article establishes a relation between quantum irreversibility and the chaotic semi-classical solutions for a spin-boson Hamiltonian system.
Date: February 1, 1997
Creator: West, Bruce J.; Grigolini, Paolo; Bonci, Luca & Roncaglia, Roberto
System: The UNT Digital Library
Site correlation, anomalous diffusion, and enhancement of the localization length (open access)

Site correlation, anomalous diffusion, and enhancement of the localization length

This article discusses site correlation, anomalous diffusion, and enhancement of localization length.
Date: November 1, 1996
Creator: Allegrini, Paolo; Bonci, Luca; Grigolini, Paolo & West, Bruce J.
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.
System: The UNT Digital Library
Direct evidence for the amorphous silicon phase in visible photoluminescent porous silicon (open access)

Direct evidence for the amorphous silicon phase in visible photoluminescent porous silicon

Article on direct evidence for the amorphous silicon phase in visible photoluminescent porous silicon.
Date: June 1, 1992
Creator: Pérez, José M.; Villalobos, J.; McNeill, P.; Prasad, J.; Cheek, R.; Kelber, Jeffry A. et al.
System: The UNT Digital Library
Rapid isothermal anneal of 75As implanted silicon (open access)

Rapid isothermal anneal of 75As implanted silicon

Article discussing a study of the rapid isothermal anneal of 75As implanted silicon.
Date: September 1, 1982
Creator: Wilson, Scott R.; Gregory, R. B.; Paulson, W. M.; Hamdi, A. H. & McDaniel, Floyd Del. (Floyd Delbert), 1942-
System: The UNT Digital Library
Atomic resolution ultrahigh vacuum scanning tunneling microscopy of epitaxial diamond (100) films (open access)

Atomic resolution ultrahigh vacuum scanning tunneling microscopy of epitaxial diamond (100) films

Article discussing research on atomic resolution ultrahigh vacuum scanning tunneling microscopy of epitaxial diamond (100) films.
Date: May 1, 1995
Creator: Stallcup, Richard E.; Aviles, A. F. & Pérez, José M.
System: The UNT Digital Library
Effects of Cs deposition on the field-emission properties of single-walled carbon-nanotube bundles (open access)

Effects of Cs deposition on the field-emission properties of single-walled carbon-nanotube bundles

This article discusses the effects of Cs deposition on the field-emission properties of single-walled carbon-nanotube bundles.
Date: January 1, 2001
Creator: Wadhawan, Atul; Stallcup, Richard E. & Pérez, José M.
System: The UNT Digital Library
Electronic and field emission properties of boron nitride/carbon nanotube superlattices (open access)

Electronic and field emission properties of boron nitride/carbon nanotube superlattices

Article on electronic and field emission properties of boron nitride/carbon nanotube superlattices.
Date: July 1, 2002
Creator: Meunier, Vincent; Roland, Christopher; Bernholc, Jerry & Buongiorno Nardelli, Marco
System: The UNT Digital Library
Compression and Diffusion: A Joint Approach to Detect Complexity (open access)

Compression and Diffusion: A Joint Approach to Detect Complexity

Article discussing a joint approach to detect complexity by combining the Compression Algorithm Sensitive To Regularity (CASToRe) and Complex Analysis of Sequences via Scaling AND Randomness Assessment (CASSANDRA) procedures.
Date: February 1, 2003
Creator: Allegrini, Paolo; Benci, V. (Vieri); Grigolini, Paolo; Hamilton, P.; Ignaccolo, Massimiliano; Menconi, Giulia et al.
System: The UNT Digital Library