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A Critical Examination of "The Echo": Prison Publication of the Texas Department of Corrections

Description: The problem this investigation deals with is how The Echo functions as a communication vehicle within the TDC. Information was gathered through visits, interviews and a questionnaire. Organization is as follows: Chapter I, introduction, Chapter II, history and development; Chapter III, analysis of questionnaire data; Chapter IV, content; Chapter V, summary and conclusions. The study found that The Echo is often the sole source of TDC information to inmates, frequently aids administrators in pro… more
Date: May 1977
Creator: Hadeler, David A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Preliminary Results of the Echo-Seeding Experiment at SLAC

Description: ECHO-7 is a proof-of-principle echo-enabled harmonic generation FEL experiment in the Next Linear Collider Test Accelerator (NLCTA) at SLAC. The experiment aims to generate coherent radiation at 318 nm and 227 nm, which are the 5th and 7th harmonic of the infrared seed laser. In this paper we present the preliminary results from the commissioning run of the completed experimental setup which started in April 2010.
Date: May 23, 2010
Creator: Xiang, D.; Colby, E.; Ding, Y.; Dunning, M.; Frederico, J.; Gilevich, S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Mobiles

Description: Mobiles is a composition for an ensemble consisting of 12 instruments. The piece, in one movement, incorporates intuition, chance, and twelve tone techniques and reflects the relationship between motion and rest or tension and release. The structure is modeled according to principles of growth and decay, starting off slowly, building, and then dying away. Much of the material is inspired by mental images invoked from modern theories concerning chaos. Mobiles' character stems from the principal… more
Date: August 1997
Creator: Whitworth, Clifford K. (Clifford Kirk)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Evaluation of SAFT/T-SAFT Technology for the Inspection of Hanford's Double Shell Waste Tank Knuckle Regions

Description: Results of the examinations conducted at Pacific Northwest National Laboratory provided a firm engineering basis for establishing the proof-of-principle effectiveness for utilizing a combination of pulse-echo Synthetic Aperture Focusing Technique (SAFT) and tandem-SAFT (T-SAFT) inspection methodologies as applied to the problem of flaw detection, localization, and sizing in Hanford's double shell waste tank knuckle region and beyond.
Date: September 14, 2000
Creator: Pardini, Allan F. & Diaz, Aaron A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Artificial Intelligence at Home: Alexa, Are You Influencing My Family?

Description: The purpose of this research is to measure the social shifts that take place in a home where artificial intelligent (AI) devices like Echo Dot and Google Home are fully integrated into their everyday life. Research is currently limited, being that the widespread use of these devices is roughly seven years old. Three main outcomes of this study were related to how often Alexa is being used in homes to solve everyday problems, the lack of overall privacy and security concerns users had, and the l… more
Date: May 2022
Creator: Ra'oof, Jameelah
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Traditional narrative about a poor old lady and a magician

Description: This is a story of a destitute old lady who had two sons, and she could barely feed them. After some time, an aged man comes to that old lady and asks her to hand over her sons to him to raise them. The old woman agrees to this while saying that she’ll keep one of them when they became adults, whereas he can take the other one. The old man — who was a magician — takes care of them. He educates one, whereas he keeps the other for household chores, who later learns magic from him. The latter is d… more
Date: November 26, 2020
Duration: 5 minutes 56 seconds
Creator: Shaikh, Maaz
Item Type: Refine your search to only Sound
Location: 25.9651000 83.1064000
Partner: UNT College of Information

Traditional narrative about a poor old lady and a magician

Description: This is a story of a destitute old lady who had two sons, and she could barely feed them. After some time, an aged man comes to that old lady and asks her to hand over her sons to him to raise them. The old woman agrees to this while saying that she’ll keep one of them when they became adults, whereas he can take the other one. The old man — who was a magician — takes care of them. He educates one, whereas he keeps the other for household chores, who later learns magic from him. The latter is d… more
Date: November 26, 2020
Duration: 6 minutes 58 seconds
Creator: Shaikh, Maaz
Item Type: Refine your search to only Video
Location: 25.9651000 83.1064000
Partner: UNT College of Information
open access

Experimental Infection of Beagles with Echo Virus Type 6

Description: Report issued by the Atomic Energy Commission over experimental studies conducted on beagles infected with the Echo 6 virus. Detailed step-by-step methods of the studies are presented and discussed. The results are also presented. This report includes tables.
Date: May 1965
Creator: Pindak, Frank Frantisek & Clapper, William Everett
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Story of a couple

Description: This is a story of a husband and wife who once had so little flour left in their house that only three chapatis could be made. The husband says that he will eat two chapatis, and the wife too says the same. A heated exchange took place between them, but they finally agreed that whoever speaks first will eat just one chapati while the other one, two. They lie down and silently stare at each other, and three days pass like this. The villagers, thinking of them being dead, go to their house, wrap … more
Date: January 31, 2020
Duration: 2 minutes
Creator: Shaikh, Maaz
Item Type: Refine your search to only Sound
Location: 25.9038000 83.3203000
Partner: UNT College of Information
open access

Spin Echo and Interference in Synchrotrons

Description: Spin dynamics in crossing a single depolarization resonance is a well-studied subject. One well-known example is that of Froissart and Stora in 1960. More is needed to complete the understanding, particularly of the transient effects, when crossing a single resonance, but question arises what happens if we cross two resonances or cross a single resonance twice. When a resonance is crossed twice, the particle's spin dynamics encounters two additional phenomena. First, the two crossings will inte… more
Date: November 30, 2006
Creator: Chao, Alex
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Spin-echo resolved grazing incidence scattering (ESRGIS) of cold neutrons.

Description: The conceptual design of a new instrument is presented, which makes use of the spin echo technique to analyze the scattering angle of neutrons impinging upon a rough or corrugated surface at grazing incidence. In a grazing incidence geometry the roughness of the surface and of submersed interfaces give rise to a neutron scattering pattern at angles well resolved from that of specular reflection for corrugation lengths up to several microns, but only in the plane of specular reflection. In contr… more
Date: August 12, 2002
Creator: Felcher, G. P.; te Velthuis, S. G. E.; Major, J.; Dosch, H.; Anderson, C.; Habicht, K. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Spin Echo in Synchrotrons

Description: As a polarized beam is accelerated through a depolarization resonance, its polarization is reduced by a well-defined calculable reduction factor. When the beam subsequently crosses a second resonance, the final beam polarization is considered to be reduced by the product of the two reduction factors corresponding to the two crossings, each calculated independently of the other. This is a good approximation when the spread of spin precession frequency {Delta}{nu}{sub spin} of the beam (particula… more
Date: December 1, 2006
Creator: Chao, Alexander W. & Courant, Ernest D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Probing spatial correlations in the inhomogeneous glassy state of the cuprates by Cu NMR.

Description: We discuss the crossover of the form of the Cu NMR spin echo decay at the onset of Cu wipeout in lanthanum cuprates. Experimentally, the echo decay undergoes a crossover from Gaussian to exponential form below the temperature where the Cu NMR intensity drops. The wipeout and the change in behavior both arise because the nuclei experience spatially inhomogeneous spin fluctuations at low temperatures. We argue that regions where the spin fluctuations remain fast are localized on length scales of … more
Date: January 1, 2001
Creator: Curro, N. J. (Nicholas J.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Investigation of Sodium Distribution in Phosphate Glasses Using Spin-Echo {sup 23}Na NMR

Description: The spatial arrangement of sodium cations for a series of sodium phosphate glasses, xNa{sub 2}O(100-x)P{sub 2}O{sub 5} (x<55), were investigated using {sup 23}Na spin-echo NMR spectroscopy. The spin-echo decay rate is a function of the Na-Na homonuclear dipolar coupling and is related to the spatial proximity of neighboring Na nuclei. The spin-echo decay rate in these sodium phosphate glasses increases non-linearly with higher sodium number density, and thus provides a measure of the Na-Na e… more
Date: September 16, 1999
Creator: ALAM, TODD M.; BOYLE, TIMOTHY J.; BROW, RICHARD K.; CLICK, CAROL C.; CONZONE, SAM; McLAUGHLIN, JAY et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Matrix Formalism for Spin Dynamics Near a Single Depolarization Resonance

Description: A matrix formalism is developed to describe the spin dynamics in a synchrotron near a single depolarization resonance as the particle energy (and therefore its spin precession frequency) is varied in a prescribed pattern as a function of time such as during acceleration. This formalism is first applied to the case of crossing the resonance with a constant crossing speed and a finite total step size, and then applied also to other more involved cases when the single resonance is crossed repeated… more
Date: October 26, 2005
Creator: Chao, Alexander W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Charge Separation in Photoredox Reactions. Technical Progress Report, June 15, 1993--June 15, 1996

Description: The structural aspects controlling charge separation in molecular photoionization reactions in organized molecular assemblies involving micelles, reverse micelles and vesicles and in microporous silica gel materials are being studied by optical and electron magnetic resonance techniques including the time domain technique of deuterium electron spin echo modulation (ESEM) and matrix proton electron nuclear double resonance (ENDOR) to measure weak electron-nuclear dipolar interactions. ESEM and m… more
Date: July 1, 1996
Creator: Kevan, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SQUID-Detected In Vivo MRI at Microtesla Magnetic Fields

Description: We use a low transition temperature (T{sub c}) Super-conducting Quantum Interference Device (SQUID) to perform in vivo magnetic resonance imaging (MRI) at magnetic fields around 100 microtesla, corresponding to proton Larmor frequencies of about 5 kHz. In such low fields, broadening of the nuclear magnetic resonance lines due to inhomogeneous magnetic fields and susceptibility variations of the sample are minimized, enabling us to obtain high quality images. To reduce environmental noise the si… more
Date: June 1, 2005
Creator: Moble, Michael; Myers, Whittier R; Lee, SeungKyun; Kelso, Nathan; Hatridge, Michael; Pines, Alexander et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

MQ NMR and SPME analysis of nonlinearity in the degradation of a filled silicone elastomer

Description: Radiation induced degradation of polymeric materials occurs via numerous, simultaneous, competing chemical reactions. Though degradation is typically found to be linear in adsorbed dose, some silicone materials exhibit non-linear dose dependence due to dose dependent dominant degradation pathways. We have characterized the effects of radiative and thermal degradation on a model filled-PDMS system, Sylgard 184 (commonly used as an electronic encapsulant and in biomedical applications), using tra… more
Date: October 10, 2008
Creator: Chinn, S. C.; Alviso, C. T.; Berman, E. S.; Harvey, C. A.; Maxwell, R. S.; Wilson, T. S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department

Story of a prince and his stepmother

Description: This is a story about a prince whose mother died and his stepmother would never like him. The story describes how she troubles him and never gives him good food to eat, but he was lucky enough to have the blessings of a miraculous cow and feed on her milk. Later on, when his stepmother realized this, she ordered that all cows be slaughtered. Still, the prince escapes along with the cow to a different country where he grows up in a healthy environment. After quite a few years, he returns to his … more
Date: February 1, 2020
Duration: 6 minutes 29 seconds
Creator: Shaikh, Maaz
Item Type: Refine your search to only Sound
Location: 25.9651000 83.1064000
Partner: UNT College of Information

Story of Paňkhiā Bādshāh

Description: This is a story in the Eastern (Fatehpur) dialect of Azamgarhi about a king who once asks his seven daughters that from whose fate they eat. Six of them reply, “We eat because you give.” The seventh one refuses to accept this at any cost. Hearing this, the king gets furious and sends her to a jungle where she, fortunately, finds a good hut to live, meets Paňkhiyā Bādshāh (the king who appears on a swing of Punkah or fan). Finally, they both marry and live happily. Realizing this, her other sist… more
Date: February 1, 2020
Duration: 10 minutes 12 seconds
Creator: Shaikh, Maaz
Item Type: Refine your search to only Sound
Location: 26.0777953574565 83.191262681648
Partner: UNT College of Information
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