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Serial/Series Title
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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.
Object Type:
Article
System:
The UNT Digital Library
Trajectory versus probability density entropy
In this article, the authors show that the widely accepted conviction that a connection can be established between the probability density entropy and the Kolmogorov-Sinai (KS) entropy is questionable.
Date:
2001
Creator:
Bologna, Mauro; Grigolini, Paolo; Karagiorgis, Markos & Rosa, Angelo
Object Type:
Article
System:
The UNT Digital Library
Scanning Tunneling Microscopy Studies of Temperature-Dependent Etching of Diamond (100) by Atomic Hydrogen
In this article, the authors present a technique for obtaining atomic resolution ultrahigh vacuum scanning tunneling microscopy images of diamond (100) films by atomic hydrogen.
Date:
April 9, 2001
Creator:
Stallcup, Richard E. & Pérez, José M.
Object Type:
Article
System:
The UNT Digital Library
Multiwavelength monitoring of the narrow-line Seyfert 1 galaxy Arakelian 564. II. Ultraviolet continuum and emission-line variability
This article presents the results of an intensive 2 month campaign of approximately daily spectrophotometric monitoring of the narrow-line Seyfert 1 galaxy Ark 564 with the Hubble Space Telescope.
Date:
July 3, 2001
Creator:
Collier, S.; Crenshaw, D.M.; Peterson, Bradley M.; Brandt, William Nielsen; Clavel, J.; Edelson, R. et al.
Object Type:
Article
System:
The UNT Digital Library
Multiwavelength monitoring of the narrow-line Seyfert 1 galaxy Arakelian 564. III. Optical observations and the optical-UV-X-ray connection
This article presents the results of a 2 year long optical monitoring program of the narrow-line Seyfert 1 galaxy Ark 564.
Date:
July 3, 2001
Creator:
Shemmer, Ohad; Romano, P.; Bertram, Ray; Brinkman, Jon; Collier, S.; Crowley, K.A. et al.
Object Type:
Article
System:
The UNT Digital Library
Quantum Entanglement and Entropy
This article discusses quantum entanglement and entropy.
Date:
August 20, 2001
Creator:
Giraldi, Filippo & Grigolini, Paolo
Object Type:
Article
System:
The UNT Digital Library
Nova Sagittarii 1998 (V4633 Sgr): a permanent superhump system or an asynchronous polar?
This article reports the results of observations of V4633 Sgr (Nova Sagittarii 1998) during 1998-2000.
Date:
August 23, 2001
Creator:
Lipkin, Yaacov; Leibowitz, E. M.; Retter, A. & Shemmer, Ohad
Object Type:
Article
System:
The UNT Digital Library
Effects of O2, Ar, and H2 gases on the field-emission properties of single-walled and multiwalled carbon nanotubes
In this article, the authors compare the effects of O2, Ar, and H2 gases on the field-emission (FE) properties of single-walled carbon nanotubes (SWNTs) and multiwalled carbon nanotubes (MWNTs).
Date:
September 17, 2001
Creator:
Wadhawan, Atul; Stallcup, Richard E.; Stephens, Kenneth F.; Pérez, José M. & Akwani, Ikerionwu A.
Object Type:
Article
System:
The UNT Digital Library
Reddening, Emission-Line, and Intrinsic Absorption Properties in the Narrow-Line Seyfert 1 Galaxy Arakelian 564
This article uses Hubble Space Telescope UV and optical spectra of the narrow-line Seyfert 1 galaxy Ark 564 to investigate its internal reddening and properties of its emission-line and intrinsic UV absorption gas.
Date:
October 12, 2001
Creator:
Crenshaw, D.M.; Kraemer, S.B.; Turner, T.J.; Collier, S.; Peterson, Bradley M.; Brandt, William Nielsen et al.
Object Type:
Article
System:
The UNT Digital Library
Structural and electronic properties of carbon nanotube tapers
Article on structural and electronic properties of carbon nanotube tapers, a set of nanostructures comprised of straight tubular sections with decreasing diameters, joined to each other via conical funnels and terminated with a hemispherical cap.
Date:
October 29, 2001
Creator:
Meunier, Vincent; Buongiorno Nardelli, Marco; Roland, Christopher & Bernholc, Jerry
Object Type:
Article
System:
The UNT Digital Library
O(N) real-space method for ab initio quantum transport calculations: Application to carbon nanotube - metal contacts
Article on O(N) real-space method for ab initio quantum transport calculations and application to carbon nanotube-metal contacts.
Date:
December 10, 2001
Creator:
Buongiorno Nardelli, Marco; Fattebert, Jean-luc & Bernholc, Jerry
Object Type:
Article
System:
The UNT Digital Library
Is There a Metallicity-Luminosity Relationship in Active Galactic Nuclei? The Case of Narrow-Line Seyfert 1 Galaxies
This article discusses the relationship between metallicity and luminosity in active galactic nuclei by introducing new metallicity measurements for a sample of narrow-line Seyfert 1 galaxies.
Date:
February 8, 2002
Creator:
Shemmer, Ohad & Netzer, Hagai
Object Type:
Article
System:
The UNT Digital Library
Diffusion Entropy and Waiting Time Statistics of Hard-X-Ray Solar Flares
Article on diffusion entropy and waiting time statistics of hard-x-ray solar flares.
Date:
March 25, 2002
Creator:
Grigolini, Paolo; Leddon, Deborah & Scafetta, Nicola
Object Type:
Article
System:
The UNT Digital Library
Supernova 2002ap: the first month
This article reports the results of the first month of an intensive photometric and spectroscopic monitoring campaign of Supernova 2002ap.
Date:
March 27, 2002
Creator:
Gal-Yam, Avishay; Ofek, Efran & Shemmer, Ohad
Object Type:
Article
System:
The UNT Digital Library
Ultimate strength of carbon nanotubes: A theoretical study
Article on a theoretical study of the ultimate strength of carbon nanotubes.
Date:
March 27, 2002
Creator:
Zhao, Qingzhong; Buongiorno Nardelli, Marco & Bernholc, Jerry
Object Type:
Article
System:
The UNT Digital Library
Erratum: "Is there a metallicity-luminosity relationship in active galactic nuclei? The case of narrow-line Seyfert 1 galaxies"
This erratum corrects a computational error affecting the calculation of the intrinsic luminosities of several objects in the article "Is there a metallicity-luminosity relationship in active galactic nuclei? The case of narrow-line Seyfert 1 galaxies." This does not affect any of the main results of the article.
Date:
April 10, 2002
Creator:
Shemmer, Ohad & Netzer, Hagai
Object Type:
Article
System:
The UNT Digital Library
Memory Beyond Memory in Heart Beating, a Sign of a Healthy Physiological Condition
In this article, the authors describe two types of memory and illustrate each using artificial and actual heartbeat data sets.
Date:
April 11, 2002
Creator:
Allegrini, Paolo; Grigolini, Paolo; Hamilton, P.; Palatella, Luigi & Raffaelli, G.
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
Scaling Breakdown: A Signature of Aging
In this article, the authors prove that the Lévy walk is characterized by bilinear scaling. This effect mirrors the existence of a form of aging that does not require the adoption of nonstationary conditions.
Date:
July 12, 2002
Creator:
Allegrini, Paolo; Bellazzini, Jacopo; Bramanti, G.; Ignaccolo, Massimiliano; Grigolini, Paolo & Yang, J.
Object Type:
Article
System:
The UNT Digital Library
Real event detection and the treatment of congestive heart failure: an efficient technique to help cardiologists to make crucial decisions
Paper discussing the treatment of congestive heart failure. Abstract: Using a method of entropic analysis of time series we establish the correlation between heartbeat long-range memory and mortality risk in patients with congestive heart failure.
Date:
September 2002
Creator:
Allegrini, Paolo; Balocchi, Rita; Chillemi, Santi; Grigolini, Paolo; Hamilton, P.; Maestri, Roberto et al.
Object Type:
Paper
System:
The UNT Digital Library
Lévy Scaling: The Diffusion Entropy Analysis Applied to DNA Sequences
Article on Lévy scaling and the diffusion entropy analysis applied to DNA sequences. The authors address the problem of the statistical analysis of a time series generated by complex dynamics with the diffusion entropy analysis.
Date:
September 20, 2002
Creator:
Scafetta, Nicola; Latora, Vito & Grigolini, Paolo
Object Type:
Article
System:
The UNT Digital Library
Scaling Detection in Time Series: Diffusion Entropy Analysis
Article discussing a method of statistical analysis based on the Shannon entropy of the diffusion process generated by the time series, called diffusion entropy analysis (DEA).
Date:
September 25, 2002
Creator:
Scafetta, Nicola & Grigolini, Paolo
Object Type:
Article
System:
The UNT Digital Library
Short- and Long-Term Statistical Properties of Heartbeat Time-Series in Healthy and Pathological Subjects
Paper discussing short- and long-term statistical properties of heartbeat time-series in healthy and pathological subjects.
Date:
October 2002
Creator:
Allegrini, Paolo; Balocchi, Rita; Chillemi, Santi; Grigolini, Paolo; Palatella, Luigi & Raffaelli, G.
Object Type:
Paper
System:
The UNT Digital Library
Conflict between trajectories and density description: the statistical source of disagreement
Paper discussing the statistical source of disagreement between trajectories and density description.
Date:
December 2002
Creator:
Allegrini, Paolo; Grigolini, Paolo; Palatella, Luigi & Rosa, Angelo
Object Type:
Paper
System:
The UNT Digital Library