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Elements of Shamanic Mythology in E. T. A. Hoffman's Romantic Conception of Music (open access)

Elements of Shamanic Mythology in E. T. A. Hoffman's Romantic Conception of Music

The musicians in E. T. A. Hoffmann's tales and essays demonstrate traits remarkably similar to those of shamans. Hoffmann uses the same imagery to describe the journey of the composer into the "realm of dreams," where he receives inspiration, as the shaman uses to describe the spirit world to which he journeys via music. Hoffmann was a major force in changing the 18th-century view of music as an "innocent luxury" to the 19th-century idea of music as a higher art. As a German Romantic,author, he subscribed to the idea championed by the Schlegels that true poetry is based on myth. In this thesis, Hoffmann's writings are compared with shamanic mythology to demonstrate a similarity beyond mere coincidence, without drawing conclusions about influence.
Date: December 1993
Creator: Miller, Harry A. W. (Harry Alfred Werner)
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Study of Novel Ion/surface Interactions Using Soft-landing Ion Mobility (open access)

Study of Novel Ion/surface Interactions Using Soft-landing Ion Mobility

Preparative mass spectrometry is a gas-phase ion deposition technique aimed at deposition of monodisperse ion beams on a surface. This is accomplished through the implementation of a soft-landing ion mobility system which allows for high ion flux of conformationally selected ion packets. The soft-landing ion mobility system has been applied to a number of unique chemical problems including the deposition of insulators on graphene, the preparation of reusable surface enhanced Raman spectroscopic substrates, and the deposition of uranium nanoparticles. Soft-landing ion mobility provided a platform for the quick deposition of usable amounts of materials, which is the major objective of preparative mass spectrometry. Soft-landing ion mobility is unique when compared to other preparative mass spectrometric techniques in that the ion packets are conformationally separated, not separated on mass to charge ratio. This provides orthogonal complementary data to traditional mass spectrometric techniques and allows for the study of conformationally monodisperse surfaces. The diversity of problems that have been and continued to be explored with soft-landing ion mobility highlight the utility of the technique as a novel tool for the study of multiple ion/surface interactions.
Date: December 2012
Creator: Hoffmann, William Darryle
Object Type: Thesis or Dissertation
System: The UNT Digital Library
[Letter from G. A. Stirl to I. H. Kempner, December 13, 1955] (open access)

[Letter from G. A. Stirl to I. H. Kempner, December 13, 1955]

Letter from G. A. Stirl to I. H. Kempner discussing Sugarland Industries' account statements.
Date: December 13, 1955
Creator: Stirl, Gus A.
Object Type: Letter
System: The Portal to Texas History
[Letter from G. A. Stirl to I. H. Kempner, December 13, 1955] (open access)

[Letter from G. A. Stirl to I. H. Kempner, December 13, 1955]

Letter from George A. Stirl to I. H. Kempner discussing Sugarland Industries' account statements.
Date: December 13, 1955
Creator: Stirl, Gus A.
Object Type: Letter
System: The Portal to Texas History
Low frequency dynamics of CO/Cu-breakdown of Born-Oppenheimer approximation (open access)

Low frequency dynamics of CO/Cu-breakdown of Born-Oppenheimer approximation

Synchrotron infrared studies of adsorbates on surfaces offer the possibility of probing low frequency vibrational modes and dynamics at high resolution (1 cm{sup {minus}1}, 125 {mu}eV). Extensive experiments have been performed for ordered submonolayers of CO on low index Cu surfaces [({radical}3 {times} {radical}3)R30{degree} CO/Cu(1ll), c(2 {times} 2) CO/Cu(100) and (1 {times} 2) CO/Cu(l10)], in the 100-2500 cm{sup {minus}1} ({approximately}12.5 {minus} 312.5 MeV) range. These are the first IR experiments to directly probe the adsorbate-substrate vibrations for this system. In addition, however, several surprising features are observed including the dipole-forbidden hindered rotation and an unexpected broadband absorption. Two theories have been motivated by this work, and will be compared to our experimental results. The first theory is a cluster calculation by Head-Gordon and Tully, which takes into account the breakdown of the Born-Oppenheimer approximation and predicts lifetimes and frequencies of the vibrational modes for CO/Cu(100). Another Drude-based theory, proposed by Persson, considers the coupling of the conduction electron current to the vibrations of the adsorbates, accounting for the observation of both the broad-band absorption and dipole-forbidden peak.
Date: December 31, 1993
Creator: Hirschmugl, C.; Williams, G. P.; Chabal, Y. J. & Hoffmann, F. M.
Object Type: Article
System: The UNT Digital Library
A study of pitch oscillation and roughness on airfoils used for horizontal axis wind turbines (open access)

A study of pitch oscillation and roughness on airfoils used for horizontal axis wind turbines

Under subcontract XF-1-11009-3 the Ohio State University Aeronautical and Astronautical Research Laboratory (OSU/AARL) with the National Renewable Energy Laboratory (NREL) developed an extensive database of empirical aerodynamic data. These data will assist in the development of analytical models and in the design of new airfoils for wind turbines. To accomplish the main objective, airfoil models were designed, built and wind tunnel tested with and without model leading edge grit roughness (LEGR). LEGR simulates surface irregularities due to the accumulation of insect debris, ice, and/or the aging process. This report is a summary of project project activity for Phase III, which encompasses the time period from September 17, 1 993 to September 6, 1 994.
Date: December 1, 1995
Creator: Gregorek, G. M.; Hoffmann, M. J.; Ramsay, R. R. & Janiszewska, J. M.
Object Type: Report
System: The UNT Digital Library
Effluent testing for the Oak Ridge mixed waste incinerator: Emissions test for August 27, 1990 (open access)

Effluent testing for the Oak Ridge mixed waste incinerator: Emissions test for August 27, 1990

On August 27, 1990, a special emissions test was performed at the K-1435 Toxic Substance Control Act Mixed Waste Incinerator. A sampling and analysis plan was implemented to characterize the incinerator waste streams during a 6 hour burn of actual mixed waste. The results of this characterization are summarized in the present report. Significant among the findings is the observation that less than 3% of the uranium fed to the incinerator kiln was discharged as stack emission. This value is consistent with the estimate of 4% or less derived from long-term mass balance of previous operating experience and with the value assumed in the original Environmental Impact Statement. Approximately 1.4% of the total uranium fed to the incinerator kiln appeared in the aqueous scrubber blowdown; about 85% of the total uranium in the aqueous waste was insoluble (i.e., removable by filtration). The majority of the uranium fed to the incinerator kiln appeared in the ash material, apparently associated with phosphorous as a sparingly-soluble species. Many other metals of potential regulatory concern also appeared to concentrate in the ash as sparingly-soluble species, with minimal partition to the aqueous waste. The aqueous waste was discharged to the Central Neutralization Facility where it …
Date: December 1, 1990
Creator: Bostick, W. D.; Bunch, D. H.; Gibson, L. V.; Hoffmann, D. P. & Shoemaker, J. L.
Object Type: Report
System: The UNT Digital Library
Effluent testing for the Oak Ridge mixed waste incinerator: Emissions test for August 27, 1990 (open access)

Effluent testing for the Oak Ridge mixed waste incinerator: Emissions test for August 27, 1990

On August 27, 1990, a special emissions test was performed at the K-1435 Toxic Substance Control Act Mixed Waste Incinerator. A sampling and analysis plan was implemented to characterize the incinerator waste streams during a 6 hour burn of actual mixed waste. The results of this characterization are summarized in the present report. Significant among the findings is the observation that less than 3% of the uranium fed to the incinerator kiln was discharged as stack emission. This value is consistent with the estimate of 4% or less derived from long-term mass balance of previous operating experience and with the value assumed in the original Environmental Impact Statement. Approximately 1.4% of the total uranium fed to the incinerator kiln appeared in the aqueous scrubber blowdown; about 85% of the total uranium in the aqueous waste was insoluble (i.e., removable by filtration). The majority of the uranium fed to the incinerator kiln appeared in the ash material, apparently associated with phosphorous as a sparingly-soluble species. Many other metals of potential regulatory concern also appeared to concentrate in the ash as sparingly-soluble species, with minimal partition to the aqueous waste. The aqueous waste was discharged to the Central Neutralization Facility where it …
Date: December 1, 1990
Creator: Bostick, W. D.; Bunch, D. H.; Gibson, L. V.; Hoffmann, D. P. & Shoemaker, J. L.
Object Type: Report
System: The UNT Digital Library
The influence of microstructure on the mechanical behavior of silicon nitride ceramics (open access)

The influence of microstructure on the mechanical behavior of silicon nitride ceramics

Elongated Si nitride grains produced during densification in a liquid phase can increase the fracture toughness, but this depends on the activation of intergranular rather than transgranular fracture. Bridging in the crack wake by elongated grains and pullout of some of these grains suggest that the crack wake mechanisms that contribute to toughening of whisker-reinforced ceramics can also operate in Si nitrides containing elongated grains. With diameters of the larger elongated grains approaching 9 {mu}m, strengths > 800 MPa have been achieved along with Weibull moduli, but clustering of these larger elongated grains must be avoided. Fatigue of these toughened Si nitrides is influenced by silicate grain boundary phases. Design of toughened Si nitrides must consider effects of silicate phase composition and content on fatigue and creep. 8 figs, 18 refs.
Date: December 31, 1992
Creator: Becher, P. F.; Lin, H. T.; Hwang, S. L.; Hoffmann, M. J. & Chen, I-Wei
Object Type: Article
System: The UNT Digital Library
Studies in Medium Energy Physics. [Dept. of Physics, Univ. of Texas at Austin, Austin, Texas] (open access)

Studies in Medium Energy Physics. [Dept. of Physics, Univ. of Texas at Austin, Austin, Texas]

Progress is briefly reported in the following areas: p + A precision elastic forward-angle cross sections for 500- to 800-MeV p on [sup 40]Ca; precision measurement of D[sub NN] for [sup 13]C([rvec p], [rvec p]) at 500 MeV; design of a polarized nuclear target; search for very rare K[sub L] decays; search for the H dibaryon; experimental search for quark -- gluon plasma; and theoretical work on proton -- nucleus scattering.
Date: December 1, 1992
Creator: Hoffmann, G. W.; McDonough, J.; Purcell, M. J.; Ray, R. L.; Read, D. M. & Worm, S. D.
Object Type: Report
System: The UNT Digital Library
Studies in Medium Energy Physics. Progress report, April 1, 1992--March 31, 1993 (open access)

Studies in Medium Energy Physics. Progress report, April 1, 1992--March 31, 1993

Progress is briefly reported in the following areas: p + A precision elastic forward-angle cross sections for 500- to 800-MeV p on {sup 40}Ca; precision measurement of D{sub NN} for {sup 13}C({rvec p}, {rvec p}) at 500 MeV; design of a polarized nuclear target; search for very rare K{sub L} decays; search for the H dibaryon; experimental search for quark -- gluon plasma; and theoretical work on proton -- nucleus scattering.
Date: December 1, 1992
Creator: Hoffmann, G. W.; McDonough, J.; Purcell, M. J.; Ray, R. L.; Read, D. M. & Worm, S. D.
Object Type: Report
System: The UNT Digital Library
On the mechanism for plasma hydrogenation of graphene (open access)

On the mechanism for plasma hydrogenation of graphene

This article discusses the mechanism for plasma hydrogenation of graphene.
Date: December 6, 2010
Creator: Jones, Jason D.; Hoffmann, William D.; Jesseph, Aaron V.; Morris, Christopher; Verbeck, Guido F. & Pérez, José M.
Object Type: Article
System: The UNT Digital Library
Application of Empore{trademark} disk technology to environmental radiochemical analysis (open access)

Application of Empore{trademark} disk technology to environmental radiochemical analysis

The costs associated with environmental restoration and waste management at both government and private facilities are burdensome, and continue to grow. The Department of Energy estimates that over one million samples, many containing radioactive components, will be analyzed per annum to support remediation programs at its 4000 sites. The development and implementation of new analytical technologies can significantly reduce the high costs associated with these programs. Disk solid-phase extraction technology has been proven to be highly effective for sample preparation in the analysis of organic compounds, waste waters, and other aqueous samples. Disk technology significantly improves sample throughput, while reducing secondary waste and costs. Moreover, many of the hazardous chemicals associated with traditional procedures are eliminated. This technology may be readily automated and lends itself to field applications. Through a Cooperative Research and Development Agreement, the 3M Company and Argonne National Laboratory are expanding this technology to address sample preparation and recovery of radionuclides from aqueous samples, i.e., surface, ground, and drinking waters. Disks have been developed which demonstrate high selectivity and great affinity for important radionuclides, including {sup 99}Tc, {sup 89/90}Sr, and {sup 226/228}Ra.
Date: December 31, 1995
Creator: Smith, L. L.; Orlandini, K. A.; Alvarado, J. S.; Hoffmann, K. M.; Seely, D. C. & Shannon, R. T.
Object Type: Article
System: The UNT Digital Library
Studies in medium energy physics (open access)

Studies in medium energy physics

This report discusses the following research: p + A precision elastic forward angle cross sections; polarized nuclear target project; and search for very rare K{sup L} decays. (LSP)
Date: December 1, 1991
Creator: Green, A.; Hoffmann, G. W.; McDonough, J.; Purcell, M. J.; Ray, R. L.; Read, D. E. et al.
Object Type: Report
System: The UNT Digital Library
Studies in medium energy physics (open access)

Studies in medium energy physics

This document constitutes the (1991--1992) technical progress report and continuation proposal for the ongoing medium energy nuclear physics research program supported by the US Department of Energy through special Research Grant DE-FG05-88ER40444. The experiments discussed are conducted at the Los Alamos National Laboratory's (LANL) Clinton P. Anderson Meson Physics Facility (LAMPF) and the Alternating Gradient Synchrotron (AGS) facility of the Brookhaven National Laboratory (BNL). The overall motivation for the work discussed in this document is driven by three main objectives: (1) provide hadron-nucleon and hadron-nucleus scattering data which serve to facilitate the study of effective two-body interactions, test (and possibly determine) nuclear structure, and help study reaction mechanisms and dynamics; (2) provide unique, first-of-a-kind exploratory'' hadron-nucleus scattering data in the hope that such data will lead to discovery of new phenomena and new physics; and (3) perform precision tests of fundamental interactions, such as rare decay searches, whose observation would imply fundamental new physics.
Date: December 1, 1991
Creator: Green, A.; Hoffmann, G. W.; McDonough, J.; Purcell, M. J.; Ray, R. L.; Read, D. E. et al.
Object Type: Report
System: The UNT Digital Library
Studies in medium energy physics. Progress report and continuation proposal, April 1, 1991--March 31, 1992: Addendum (open access)

Studies in medium energy physics. Progress report and continuation proposal, April 1, 1991--March 31, 1992: Addendum

This document constitutes the (1991--1992) technical progress report and continuation proposal for the ongoing medium energy nuclear physics research program supported by the US Department of Energy through special Research Grant DE-FG05-88ER40444. The experiments discussed are conducted at the Los Alamos National Laboratory`s (LANL) Clinton P. Anderson Meson Physics Facility (LAMPF) and the Alternating Gradient Synchrotron (AGS) facility of the Brookhaven National Laboratory (BNL). The overall motivation for the work discussed in this document is driven by three main objectives: (1) provide hadron-nucleon and hadron-nucleus scattering data which serve to facilitate the study of effective two-body interactions, test (and possibly determine) nuclear structure, and help study reaction mechanisms and dynamics; (2) provide unique, first-of-a-kind ``exploratory`` hadron-nucleus scattering data in the hope that such data will lead to discovery of new phenomena and new physics; and (3) perform precision tests of fundamental interactions, such as rare decay searches, whose observation would imply fundamental new physics.
Date: December 1, 1991
Creator: Green, A.; Hoffmann, G. W.; McDonough, J.; Purcell, M. J.; Ray, R. L.; Read, D. E. et al.
Object Type: Report
System: The UNT Digital Library
Studies in medium energy physics. Progress report, April 1, 1991--March 31, 1992 (open access)

Studies in medium energy physics. Progress report, April 1, 1991--March 31, 1992

This report discusses the following research: p + A precision elastic forward angle cross sections; polarized nuclear target project; and search for very rare K{sup L} decays. (LSP)
Date: December 1, 1991
Creator: Green, A.; Hoffmann, G. W.; McDonough, J.; Purcell, M. J.; Ray, R. L.; Read, D. E. et al.
Object Type: Report
System: The UNT Digital Library
Fast six-channel pyrometer for warm-dense-matter experiments with intense heavy-ion beams (open access)

Fast six-channel pyrometer for warm-dense-matter experiments with intense heavy-ion beams

This paper describes a fast multi-channel radiation pyrometer that was developed for warmdense-matter experiments with intense heavy ion beams at Gesellschaft fur Schwerionenforschung mbH (GSI). The pyrometer is capable of measuring of brightness temperatures from 2000 K to 50000 K, at 6 wavelengths in visible and near-infrared parts of spectrum, with 5 nanosecond temporal resolution and several micrometers spatial resolution. The pyrometer's spectral discrimination technique is based on interference filters, which act as filters and mirrors to allow for simultaneous spectral discrimination of the same ray at multiple wavelengths.
Date: December 1, 2008
Creator: Ni, P.A.; Kulish, M.I.; Mintsev, V.; Nikolaev, D.N.; Ternovoi, V.Ya.; Hoffmann, D.H.H. et al.
Object Type: Article
System: The UNT Digital Library
Azimuthally sensitive HBT in Au+Au collisions at sqrt(snn) = 200 GeV (open access)

Azimuthally sensitive HBT in Au+Au collisions at sqrt(snn) = 200 GeV

No abstract prepared.
Date: December 8, 2003
Creator: Adams, J.; Adler, C.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D. et al.
Object Type: Article
System: The UNT Digital Library
Rapidity and species dependence of particle production at largetransverse momentum for d+Au collisions at psNN = 200 GeV (open access)

Rapidity and species dependence of particle production at largetransverse momentum for d+Au collisions at psNN = 200 GeV

We determine rapidity asymmetry in the production of charged pions, protons and anti-protons for large transverse momentum (p{sub T}) for d+Au collisions at {radical}s{sub NN} = 200 GeV. The rapidity asymmetry is defined as the ratio of particle yields at backward rapidity (Au beam direction or -ve rapidity) to those at forward rapidity (d beam direction or +ve rapidity). The identified hadrons are measured in the rapidity regions |y| < 0.5 and 0.5 < |y| < 1.0 for the p{sub T} range 2.5 < p{sub T} < 10 GeV/c. We observe significant rapidity asymmetry for charged pion and proton+anti-proton production in both rapidity regions. The asymmetry is larger for 0.5 < |y| < 1.0 than for |y| < 0.5 and is almost independent of particle type. The measurements are compared to various model predictions employing multiple scattering, energy loss, nuclear shadowing, saturation effects, and recombination, and also to a phenomenological parton model. We find that asymmetries are sensitive to model parameters and show model-preference. The rapidity dependence of {pi}{sup -}/{pi}{sup +} and {bar p}/p ratios in peripheral d+Au and forward neutron-tagged events are used to study the contributions of valence quarks and gluons to particle production at high p{sub T}. …
Date: December 19, 2006
Creator: Abelev, B. I.; Adams, J.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D. et al.
Object Type: Report
System: The UNT Digital Library
K(892)* resonance production in Au+Au and p+p collisions at {radical}s{sub NN} = 200 GeV at RHIC (open access)

K(892)* resonance production in Au+Au and p+p collisions at {radical}s{sub NN} = 200 GeV at RHIC

The short-lived K(892)* resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of K* in {radical}s{sub NN} = 200 GeV Au+Au and p+p collisions reconstructed via its hadronic decay channels K(892)*{sup 0} {yields} K{pi} and K(892)*{sup +-} {yields} K{sub S}{sup 0}{pi}{sup +-} using the STAR detector at RHIC. The K*{sup 0} mass has been studied as function of p{sub T} in minimum bias p + p and central Au+Au collisions. The K* p{sub T} spectra for minimum bias p + p interactions and for Au+Au collisions in different centralities are presented. The K*/K ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias p + p collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. The nuclear modification factor of K* at intermediate p{sub T} is similar to that of K{sub S}{sup 0}, but different from {Lambda}. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate p{sub T} (2 < p{sub T} {le} 4 GeV/c). A significant non-zero K*{sup 0} elliptic flow (v{sub 2}) is observed in Au+Au collisions …
Date: December 9, 2004
Creator: Adams, J.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D.; Arkhipkin, D. et al.
Object Type: Article
System: The UNT Digital Library
Recent developments on the STAR detector system at RHIC (open access)

Recent developments on the STAR detector system at RHIC

The STAR detector system is designed to provide tracking, momentum analysis and particle identification for many of the mid-rapidity charged particles produced in collisions at the RHIC collider. A silicon vertex detector (SVT) provides three layers of tracking near the interaction point. This is followed by the main time projection chamber (TPC), which continues tracking out to 200 cm radial distance from the interaction region. The detector design also includes an electromagnetic calorimeter, various trigger detectors, and radial TPCs in the forward region. The entire system is enclosed in a 0.5 T solenoid magnet. A progress report is given for the various components of the STAR detector system. The authors report on the recent developments in the detector proto-typing and construction, with an emphasis on the main TPC, recent TPC cosmic ray testing and shipping to Brookhaven National Laboratory.
Date: December 1997
Creator: Argonne National Laboratory
Object Type: Article
System: The UNT Digital Library
USE OF SONICATION FOR IN-WELL SOFTENING OF SEMIVOLATILE ORGANIC COMPOUNDS (open access)

USE OF SONICATION FOR IN-WELL SOFTENING OF SEMIVOLATILE ORGANIC COMPOUNDS

This project investigates the in-situ degradation of semivolatile organic compounds (SVOCs) and volatile organic compounds (VOCs) using in-well sonication, in-well vapor stripping, and bioremediation. Pretreating groundwaters with sonication techniques in-situ would form VOCs that can be effectively removed by in-well vapor stripping and bioremediation. The mechanistic studies focus on the coupling of megasonics and ultrasonics to ''soften'' (i.e., partially degrade) the SVOCs; oxidative reaction mechanism studies; surface corrosion studies (on the reactor walls/well); enhancement due to addition of oxidants, quantification of the hydroxyl radical formation; identification/quantification of degradation products; volatility/degradability of the treated waters; development of a computer simulation model to describe combined in-well sonication/in-well vapor stripping/bioremediation; systems analysis/economic analysis; large laboratory-scale experiment verification; and field demonstration of the integrated technology. Benefits of this approach include: (1) Remediation is performed in-situ; (2) The treatment systems complement each other; their combination can drastically reduce or remove SVOCs and VOCs; (3) Ability to convert hard-to-degrade organics into more volatile organic compounds; (4) Ability to remove residual VOCs and ''softened'' SVOCs through the combined action of in-well vapor stripping and biodegradation; (5) Does not require handling or disposing of water at the ground surface; and (6) Cost-effective and improved efficiency, resulting in shortened …
Date: December 31, 2000
Creator: Peters, Robert W.
Object Type: Report
System: The UNT Digital Library
A two-dimensional ACAR study of untwinned YBa sub 2 Cu sub 3 O sub 7-x (open access)

A two-dimensional ACAR study of untwinned YBa sub 2 Cu sub 3 O sub 7-x

We have carried out 2D-ACAR measurements on an untwinned single crystal of YBa{sub 2}Cu{sub 3}O{sub 7-x} as a function of temperature, for five temperatures ranging from 30K to 300K. We show that these temperature dependent 2D-ACAR spectra can be described to a good approximation as a superposition of two temperature independent spectra with temperature dependent weighting factors. We show further how the data can be used to correct for the background'' in the experimental spectrum. Such a background corrected'' spectrum is in remarkable accord with the corresponding band theory predictions, and displays in particular clear signatures of the electron ridge Fermi surface.
Date: December 1, 1991
Creator: Smedskjaer, L.C. (Argonne National Lab., IL (United States)) & Bansil, A. (Northwestern Univ., Evanston, IL (United States). Dept. of Physics)
Object Type: Article
System: The UNT Digital Library