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Fluctuation-Dissipation Process Without a Time Scale (open access)

Fluctuation-Dissipation Process Without a Time Scale

Article discussing the fluctuation-dissipation process without a time scale.
Date: May 2000
Creator: Annunziato, Mario; Grigolini, Paolo & Riccardi, Juri
Object Type: Article
System: The UNT Digital Library
Transmission of Information Between Complex Systems: 1/ f resonance (open access)

Transmission of Information Between Complex Systems: 1/ f resonance

In this article, the authors study the transport of information between two complex systems with similar properties.
Date: May 31, 2011
Creator: Aquino, Gerardo; Bologna, Mauro; West, Bruce J. & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
Ultrafast dephasing in hydrogen-bonded pyridine–water mixtures (open access)

Ultrafast dephasing in hydrogen-bonded pyridine–water mixtures

Article studying Hydrogen-bonded pyridine–water mixtures by a time-frequency resolved coherent Raman spectroscopic technique.
Date: May 4, 2021
Creator: Ariunbold, Gombojav O.; Semon, Bryan; Nagpal, Supriya & Rostovtsev, Yuri V.
Object Type: Article
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
Object Type: Article
System: The UNT Digital Library
Nucleation of β-FeSi2 nanostructures at pinned step bunches on the Si(111) surface (open access)

Nucleation of β-FeSi2 nanostructures at pinned step bunches on the Si(111) surface

This article discusses nucleation of β-FeSi2 nanostructures at pinned step bunches on the Si(111) surface.
Date: May 24, 2005
Creator: Brady, Ryan P.; Sharma, A. S.; Giblet, R. L.; Cottier, Ryan J.; Golding, Terry D. & Pérez, José M.
Object Type: Article
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
Role of quantum confinement and interlayer coupling in CrI3-graphene magnetic tunnel junctions (open access)

Role of quantum confinement and interlayer coupling in CrI3-graphene magnetic tunnel junctions

Article presents a combination of first principles and quantum ballistic transport calculations to shed important insights from an atomistic viewpoint on the underlying mechanisms governing spin transport in graphene/ CrI₃ junctions.
Date: May 29, 2020
Creator: Buongiorno Nardelli, Marco; Heath, Jonathan J.; Costa, Marcio & Kuroda, Marcelo A.
Object Type: Article
System: The UNT Digital Library
Deep Minima in the Triply Differential Cross Section for Ionization of Atomic Hydrogen by Electron and Positron Impact (open access)

Deep Minima in the Triply Differential Cross Section for Ionization of Atomic Hydrogen by Electron and Positron Impact

Article investigating ionization of atomic hydrogen by electron- and positron-impact. This article belongs to the Special Issue: Interactions of Positrons with Matter and Radiation.
Date: May 29, 2020
Creator: DeMars, C. M.; Ward, S. J.; Colgan, J.; Amami, S. & Madison, D. H.
Object Type: Article
System: The UNT Digital Library
Erratum: First-Principles Theory of Correlated Transport through Nanojunctions [Phys. Rev. Lett. 94, 116802 (2005)] (open access)

Erratum: First-Principles Theory of Correlated Transport through Nanojunctions [Phys. Rev. Lett. 94, 116802 (2005)]

This article provides the correction of an equation that was misprinted in Physical Review Letters 94, 116802 (2005).
Date: May 6, 2005
Creator: Ferretti, A.; Calzolari, Arrigo; Di Felice, Rosa; Manghi, Franca; Caldas, Marilia J.; Buongiorno Nardelli, Marco et al.
Object Type: Article
System: The UNT Digital Library
Coordination corrected ab initio formation enthalpies (open access)

Coordination corrected ab initio formation enthalpies

Article proposes the “coordination corrected enthalpies” method (CCE), based on the number of nearest neighbor cation–anion bonds, and also capable of correcting relative stability of polymorphs.
Date: May 15, 2019
Creator: Friedrich, Rico; Usanmaz, Demet; Oses, Corey; Supka, Andrew; Fornari, Marco; Buongiorno Nardelli, Marco et al.
Object Type: Article
System: The UNT Digital Library
Photoconductivity Investigation of Two-Photon Magneto-Absorption, PACRH, and Deep Levels in n-InSb (open access)

Photoconductivity Investigation of Two-Photon Magneto-Absorption, PACRH, and Deep Levels in n-InSb

A high resolution photoconductivity investigation of two 13 -3 photon magneto-absorption (TPMA) in n-InSb (n - 9 x 10 cm ) has been performed. This is the first time that two-photon absorption in a semiconductor has been studied with cw lasers only. With a stable cw CC>2 laser and a highly sensitive sampling and magnetic field modulation technique, a minimum of 4 2 transitions in the TPMA photoconductivity spectra can be observed. Most of these transitions are a result of the usual spherical approximation TPMA selections rules (An =0, ±2; As = 0 for e ⊥ B and Δn = 0; Δs = 0 for e || B) . However, some transitions, in particular several near the TPMA band edge, are not explained by these rules. The TPMA spectra have been found to depend upon crystallographic orientation. This has not been previously observed. The temperature variation of the fundamental energy gap Eg between 2 and 100° K is also obtained from TPMA experiments.
Date: May 1982
Creator: Goodwin, Mike Watson
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Neural Dynamics: Criticality, Cooperation, Avalanches and Entrainment between Complex Networks (open access)

Neural Dynamics: Criticality, Cooperation, Avalanches and Entrainment between Complex Networks

Book chapter discussing neural dynamics and the criticality, cooperation, avalanches and entrainment between complex networks.
Date: May 22, 2012
Creator: Grigolini, Paolo; Zare, Marzieh; Svenkeson, Adam & West, Bruce J.
Object Type: Book Chapter
System: The UNT Digital Library
Effects of Photonic Band Structure and Unit Super-Cell Size in Graded Photonic Super-Crystal on Broadband Light Absorption in Silicon (open access)

Effects of Photonic Band Structure and Unit Super-Cell Size in Graded Photonic Super-Crystal on Broadband Light Absorption in Silicon

Examines the novel optical properties of a graded photonic super-crystal (GPSC) with a large size of unit cell.
Date: May 9, 2019
Creator: Hassan, Safaa; Alnasser, Khadijah; Lowell, David & Lin, Yuankun
Object Type: Article
System: The UNT Digital Library
The X-Ray Properties of the Most Luminous Quasars From the Sloan Digital Sky Survey (open access)

The X-Ray Properties of the Most Luminous Quasars From the Sloan Digital Sky Survey

This article studies the X-ray properties of a representative sample of 59 of the most optically luminous quasars in the universe spanning a redshift range of z ≈ 1.5-4.5.
Date: May 18, 2007
Creator: Just, Dennis W.; Brandt, William Nielsen; Shemmer, Ohad; Steffen, Aaron; Schneider, Donald P.; Chartas, George et al.
Object Type: Article
System: The UNT Digital Library
Collision-Induced Interaction Cross Sections of 1-7 Mev B₂ Ions Incident on an N₂ Gas Target (open access)

Collision-Induced Interaction Cross Sections of 1-7 Mev B₂ Ions Incident on an N₂ Gas Target

This article describes the measurement of collision-induced interaction cross sections for 1-7 MeV diatomic boron molecular ions incident on a nitrogen gas target by using a differentially pumped gas cell.
Date: May 5, 1995
Creator: Kim, Y. D.; Jin, J. Y.; Matteson, Samuel E.; Weathers, Duncan L.; Anthony, J. M.; Marshall, Paul et al.
Object Type: Article
System: The UNT Digital Library
Fabrication of silicon-based optical components for an ultraclean accelerator mass spectronomy negative ion source (open access)

Fabrication of silicon-based optical components for an ultraclean accelerator mass spectronomy negative ion source

Article discussing the fabrication of silicon-based optical components for an ultraclean accelerator mass spectonomy negative ion source.
Date: May 1994
Creator: Kirchhoff, J. F.; Marble, D. K.; Weathers, Duncan L.; McDaniel, Floyd Del. (Floyd Delbert), 1942-; Matteson, Samuel E.; Anthony, J. M. et al.
Object Type: Article
System: The UNT Digital Library
Formation and characterization of embedded Fe3Si binary structures in Si (open access)

Formation and characterization of embedded Fe3Si binary structures in Si

Article studying chemical and electronic properties of ion beam synthesized Fe-Si binary structures using X-ray photoelectron spectroscopy binding energy analysis.
Date: May 16, 2019
Creator: Lakshantha, Wickramaarachchige J.; McDaniel, Floyd Del. (Floyd Delbert), 1942- & Rout, Bibhudutta
Object Type: Article
System: The UNT Digital Library
Electrostatic equilibria of non-neutral plasmas confined in a Penning trap with axially varying magnetic field (open access)

Electrostatic equilibria of non-neutral plasmas confined in a Penning trap with axially varying magnetic field

This article describes a procedure for computing the electrostatic equilibria of non-neutral plasmas in a Penning trap with a nonuniform magnetic field by solving Poisson's equation using an iterative method. Plasma equilibria in a model Penning trap with high and low field regions are computed. The plasma is assumed to follow the Boltzmann density distribution along magnetic field lines.
Date: May 21, 2019
Creator: Lane, Ryan A. & Ordonez, Carlos A.
Object Type: Article
System: The UNT Digital Library
Star Formation in the Hosts of High-z QSOs: Evidence from Spitzer PAH Detections (open access)

Star Formation in the Hosts of High-z QSOs: Evidence from Spitzer PAH Detections

This article presents Spitzer rest frame mid-infrared spectroscopy of 12z~2 millimeter-bright type 1 QSOs.
Date: May 17, 2008
Creator: Lutz, Dieter; Sturm, Eckhard; Tacconi, Linda; Valiante, Elisabetta; Schweitzer, Mario; Netzer, Hagai et al.
Object Type: Article
System: The UNT Digital Library
Temporal complexity measure of reaction time series: Operational versus event time (open access)

Temporal complexity measure of reaction time series: Operational versus event time

Article describes how detrended fluctuation analysis (DFA) is a well-established method to evaluate scaling indices of time series, which categorize the dynamics of complex systems. The authors propose treating each reaction time as a duration time that changes the representation from operational (trial number) time n to event (temporal) time t, or X(t).
Date: May 23, 2023
Creator: Mahmoodi, Korosh; Kerick, Scott E.; Grigolini, Paolo; Franaszczuk, Pitor J. & West, Bruce J.
Object Type: Article
System: The UNT Digital Library
Can X-Ray Observations Improve Optical-UV-based Accretion-rate Estimates for Quasars? (open access)

Can X-Ray Observations Improve Optical-UV-based Accretion-rate Estimates for Quasars?

Article presents a study utilizing a carefully selected sample of 53 radio-quiet quasars that have Hβ and C iv λ1549 spectroscopy as well as Chandra coverage, to search for a robust accretion-rate indicator for quasars, particularly at the highest-accessible redshifts (z ∼ 6–7).
Date: May 23, 2022
Creator: Marlar, Andrea
Object Type: Article
System: The UNT Digital Library
K-shell x-ray production cross sections of selected elements from Ti to Y for 0.5- to 2.5-MeV alpha-particle bombardment (open access)

K-shell x-ray production cross sections of selected elements from Ti to Y for 0.5- to 2.5-MeV alpha-particle bombardment

This article discusses K-shell x-ray production cross sections of Ti, V, Cr, Fe, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, and Y for 0.5- to 2.5-MeV alpha particles.
Date: May 1975
Creator: McDaniel, Floyd Del. (Floyd Delbert), 1942-; Gray, Tom J. & Gardner, R. K.
Object Type: Article
System: The UNT Digital Library
Power-Law Time Distribution of Large Earthquakes (open access)

Power-Law Time Distribution of Large Earthquakes

Article discussing power-law time distribution of large earthquakes and a study of the statistical properties of time distribution of seismicity in California by means of diffusion entropy.
Date: May 2003
Creator: Mega, Mirko S.; Allegrini, Paolo; Grigolini, Paolo; Latora, Vito; Palatella, Luigi; Rapisarda, Andrea et al.
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