Solubility of Pioglitazone Hydrochloride in Aqueous Solutions of Ethanol, Propylene Glycol, and N-Methyl-2-Pyrrolidone at 298.2°K (open access)

Solubility of Pioglitazone Hydrochloride in Aqueous Solutions of Ethanol, Propylene Glycol, and N-Methyl-2-Pyrrolidone at 298.2°K

Article on the solubility of pioglitazone hydrochloride in aqueous solutions of ethanol, propylene glycol, and n-methyl-2-pyrrolidone at 298°K.
Date: October 16, 2009
Creator: Soltanpour, Shahla; Acree, William E. (William Eugene) & Jouyban, Abolghasem
System: The UNT Digital Library
Symposium Highlights. (open access)

Symposium Highlights.

Some of the highlights of the 14th International Symposium on Spin Physics are presented with emphasis on recent and planned progress in experimental tools and tools and facilities.
Date: October 16, 2000
Creator: Roser, T.
System: The UNT Digital Library
A systematic profile/feature-based intelligence for spectral sensors. (open access)

A systematic profile/feature-based intelligence for spectral sensors.

Argonne National Laboratory (ANL) has been creating a special-purpose software-engineering tool to support research and development of spectrum-output-type [chemical] sensors. The modular software system is called SAGE, the Sensor Algorithm Generation Environment and includes general-purpose signal conditioning algorithms (GP/SAGE) as well as intelligent classifiers, pattern recognizes, response accelerators, and sensitivity analyzers. GP/SAGE is an implementation of an approach for delivering a level of encapsulated intelligence to a wide range of sensors and instruments. It capitalizes on the genene classification and analysis needed to process most profile-type data. The GP/SAGE native data format is a generalized one-dimensional vector, signature, or spectrum. GP/SAGE modules form a computer-aided software engineering (CASE) workbench where users can experiment with various conditioning, filtering, and pattern recognition stages, then automatically generate final algorithm source code for data acquisition and analysis systems. SAGE was designed to free the [chemical] sensor developer from the signal processing allowing them to focus on understanding and improving the basic sensing mechanisms. The SAGE system's strength is its creative application of advanced neural computing techniques to response-vector and response-surface data, affording new insight and perspectives with regard to phenomena being studied for sensor development.
Date: October 16, 2000
Creator: Vogt, M.C.
System: The UNT Digital Library
Polarized Ion Sources For High Energy Accelerators And Colliders (open access)

Polarized Ion Sources For High Energy Accelerators And Colliders

The recent progress in polarized ion source development is reviewed. In dc operation a 1.0 mA polarized H{sup -} ion current is now available from the Optically-Pumped Polarized Ion Source (OPPIS) . In pulsed operation a 10 mA polarized H{sup -} ion current was demonstrated at the TRIUMF pulsed OPPIS test bench and a 3.5 mA peak current was obtained from an Atomic Beam Source (ABS) at the INR Moscow test bench. The possibilities for future improvements with both techniques are discussed. A new OPPIS for RHIC spin physics is described. The OPPIS reliably delivered polarized beam for the polarized run at RHIC. The results obtained with a new pulsed ABS injector for the IUCF Cooler Ring are also discussed.
Date: October 16, 2000
Creator: Zelenski, A. N.
System: The UNT Digital Library
Monitoring the electrical response of photoinduced organic oxidation on TiO{sub 2} surfaces. (open access)

Monitoring the electrical response of photoinduced organic oxidation on TiO{sub 2} surfaces.

None
Date: October 16, 2000
Creator: Skubal, L. R.; Vogt, M. C. & Meshkov, N. K.
System: The UNT Digital Library
CDF results on diffraction from Run I and plans for Run II (open access)

CDF results on diffraction from Run I and plans for Run II

Results on soft and hard diffraction obtained by the CDF Collaboration in Run I of the Fermilab Tevatron {bar p}p collider are reviewed and compared with results from the DESY ep collider HERA and with theoretical expectations. In addition, the CDF program for diffractive studies in Run II is briefly reviewed with emphasis on the relevant detector upgrades and physics goals.
Date: October 16, 2001
Creator: Goulianos, K.
System: The UNT Digital Library
High-current Y-Ba-Cu-O-coated conductor using metal organic chemical-vapor deposition and ion-beam-assisted deposition. (open access)

High-current Y-Ba-Cu-O-coated conductor using metal organic chemical-vapor deposition and ion-beam-assisted deposition.

None
Date: October 16, 2000
Creator: Selvamanickam, V.; Carota, G.; Funk, M.; Vo, N.; Haldar, P.; Balachandran, U. et al.
System: The UNT Digital Library
Historical Case Analysis of Uranium Plume Attenuation (open access)

Historical Case Analysis of Uranium Plume Attenuation

None
Date: October 16, 2000
Creator: Jove-Colon, Carlos F.; Brady, Patrick V.; Siegel, Malcolm D. & LIndgren, Eric R.
System: The UNT Digital Library
Impact of Drill and Blast Excavation on Repository Performance Assessment (open access)

Impact of Drill and Blast Excavation on Repository Performance Assessment

None
Date: October 16, 2000
Creator: Keller, Roger; Francis Jr., Nicholas D.; Houseworth, Jim & Kramer, Norman
System: The UNT Digital Library
Abstraction of Seepage into Drifts (open access)

Abstraction of Seepage into Drifts

The abstraction model used for seepage into emplacement drifts in recent TSPA simulations has been presented. This model contributes to the calculation of the quantity of water that might contact waste if it is emplaced at Yucca Mountain. Other important components of that calculation not discussed here include models for climate, infiltration, unsaturated-zone flow, and thermohydrology; drip-shield and waste-package degradation; and flow around and through the drip shield and waste package. The seepage abstraction model is stochastic because predictions of seepage are necessarily quite uncertain. The model provides uncertainty distributions for seepage fraction fraction of waste-package locations flow rate as functions of percolation flux. In addition, effects of intermediate-scale flow with seepage and seep channeling are included by means of a flow-focusing factor, which is also represented by an uncertainty distribution.
Date: October 16, 2000
Creator: Wilson, Michael L. & Ho, Clifford K.
System: The UNT Digital Library
Parametric Investigations of Miniaturized Cylindrical and Annular Hall Thrusters (open access)

Parametric Investigations of Miniaturized Cylindrical and Annular Hall Thrusters

A cylindrical geometry Hall thruster may overcome certain physical and technological limitations in scaling down of Hall thrusters to miniature sizes. The absence of the inner wall and use of the cusp magnetic field can potentially reduce heating of the thruster parts and erosion of the channel. A 2.6 cm miniaturized Hall thruster of a flexible design was built and successfully operated in the power range of 50-300 W. Comparison of preliminary results obtained for cylindrical and annular thruster configurations is presented.
Date: October 16, 2001
Creator: Smirnov, A.; Raitses, Y. & Fisch, N. J.
System: The UNT Digital Library
POLARIZED ION SOURCES FOR HIGH ENERGY ACCELERATORS AND COLLIDERS (open access)

POLARIZED ION SOURCES FOR HIGH ENERGY ACCELERATORS AND COLLIDERS

The recent progress in polarized ion source development is reviewed. In dc operation a 1.0 mA polarized H{sup -} ion current is now available from the Optically-Pumped Polarized Ion Source (OPPIS). In pulsed operation a 10 mA polarized H{sup -} ion current was demonstrated at the TRIUMF pulsed OPPIS test bench and a 3.5 mA peak current was obtained from an Atomic Beam Source (ABS) at the INR Moscow test bench. The possibilities for future improvements with both techniques are discussed. A new OPPIS for RHIC spin physics is described. The OPPIS reliably delivered polarized beam for the polarized run at RHIC. The results obtained with a new pulsed ABS injector for the IUCF Cooler Ring are also discussed.
Date: October 16, 2000
Creator: Zelenski, A. N.
System: The UNT Digital Library
Crossing a coupling spin resonance with an RF dipole (open access)

Crossing a coupling spin resonance with an RF dipole

None
Date: October 16, 2000
Creator: Bai, M. & Roser, T.
System: The UNT Digital Library
Neural network-based sensor signal accelerator. (open access)

Neural network-based sensor signal accelerator.

A strategy has been developed to computationally accelerate the response time of a generic electronic sensor. The strategy can be deployed as an algorithm in a control system or as a physical interface (on an embedded microcontroller) between a slower responding external sensor and a higher-speed control system. Optional code implementations are available to adjust algorithm performance when computational capability is limited. In one option, the actual sensor signal can be sampled at the slower rate with adaptive linear neural networks predicting the sensor's future output and interpolating intermediate synthetic output values. In another option, a synchronized collection of predictors sequentially controls the corresponding synthetic output voltage. Error is adaptively corrected in both options. The core strategy has been demonstrated with automotive oxygen sensor data. A prototype interface device is under construction. The response speed increase afforded by this strategy could greatly offset the cost of developing a replacement sensor with a faster physical response time.
Date: October 16, 2000
Creator: Vogt, M. C.
System: The UNT Digital Library
Measurements of Plasma Potential Distribution in Segmented Electrode Hall Thruster (open access)

Measurements of Plasma Potential Distribution in Segmented Electrode Hall Thruster

Use of a segmented electrode placed at the Hall thruster exit can substantially reduce the voltage potential drop in the fringing magnetic field outside the thruster channel. In this paper, we investigate the dependence of this effect on thruster operating conditions and segmented electrode configuration. A fast movable emissive probe is used to measure plasma potential in a 1 kW laboratory Hall thruster with semented electrodes made of a graphite material. Relatively small probe-induced perturbations of the thruster discharge in the vicinity of the thruster exit allow a reasonable comparison of the measured results for different thruster configurations. It is shown that the plasma potential distribution is almost not sensitive to changes of the electrode potential, but depends on the magnetic field distribution and the electrode placement.
Date: October 16, 2001
Creator: Raitses, Y.; Staack, D. & Fisch, N. J.
System: The UNT Digital Library
2001 - 2002 Upper Three Runs Sequence of Earthquakes at the SRS, South Carolina (open access)

2001 - 2002 Upper Three Runs Sequence of Earthquakes at the SRS, South Carolina

On October 08, 2001 a small felt earthquake occurred near Upper Three Runs Creek in the north central area of the Savannah River Site, South Carolina. Seven very small aftershocks followed the main event with the last one occurring March 06, 2002. All activity occurred within a small area. Further analysis of collected data indicates a correlation of this low level seismic activity with a small northwest trending structure observed in detailed gravity and magnetic data. Both single event and composite focal mechanisms were derived using local and regional stations. Results indicated predominantly dip-slip motion along a fault striking NNW at 335 degrees and dipping 41 degrees to the southwest. A 3D plot of the eight hypocenters clearly defines a fault plane nearly analogous to that obtained from the focal solutions. The Upper Three Runs series of events is another example of a separate class of earthquakes that occur within the central Piedmont and upper Coastal Plain of South Carolina. The Upper Three Runs sequence of events demonstrates that shallow intersections of structures interpreted from potential field data can be the foci for localized stress concentrations where microearthquake activity can occur. These earthquakes are attributable to small scale faults associated …
Date: October 16, 2003
Creator: Stevenson, Donald A.
System: The UNT Digital Library
Aspects of Parallel Simulation of High Intensity Beams in Hadron Rings. (open access)

Aspects of Parallel Simulation of High Intensity Beams in Hadron Rings.

None
Date: October 16, 2002
Creator: Luccio, A. U. & D Imperio, N. L.
System: The UNT Digital Library
Beauty and charm physics at CDF Run II (open access)

Beauty and charm physics at CDF Run II

Using the data samples collected with the CDF Run II detector during the year 2002 and early 2003, new measurements of the production cross-sections and the masses, lifetimes and branching fractions of beauty and charm hadrons are presented. New measurements of the {Lambda}{sub b} mass, lifetime, and branching fractions have greatly improved the current knowledge of bottom baryon properties and decay dynamics. the large charm signals made available by the silicon vertex track trigger have enabled the establishment of key measurements using rare charm decays that are sensitive to new physics beyond the Standard Model. The decay signals B{sub s} {yields} D{sub s}{pi} and the two body charmless decays of B{sup 0} and B{sub s} have been established. These decay channels are important milestones towards the measurement of B{sub s} mixing and direct CP violation in the B system.
Date: October 16, 2003
Creator: Bishai, M.
System: The UNT Digital Library
Metal dusting behavior of coatings. (open access)

Metal dusting behavior of coatings.

Surface modification by preoxidation and/or by coatings and alternative materials are being examined at ANL to alleviate the metal dusting problem. Oxide coatings have the advantage that they can minimize carbon-producing reactions (by reducing the availability of catalytic surface) and can also act as a barrier to minimize carbon ingress and pitting of the substrate alloy. We have selected in-situ development of oxide scales, pack diffusion of Al or Cr/Si, and thermal spray of FeAl as avenues for further study. Preliminary tests showed virtually no carbon in pre-oxidized layers of Al-, Cr-, and Si-enriched layers that were subjected to metal dusting environments.
Date: October 16, 2002
Creator: Natesan, K.; Zeng, Z.; Soppet, W. K. & Rink, D. L.
System: The UNT Digital Library
Azimuthal anisotropy of charged and identified high pT hadrons in Au+Au collisions at RHIC (open access)

Azimuthal anisotropy of charged and identified high pT hadrons in Au+Au collisions at RHIC

We report new results on v{sub 2}(p{sub T}) for Au+Au collisions at {radical}(S{sub NN}) = 200 GeV for charged hadrons, pions, kaons,(anti)protons, K{sub s}{sup 0}, and Lambda. The analysis is extended to p{sub T} = 12 GeV/c for charged hadrons and p{sub T} = 4 GeV/c for identified particles. A comparison of the azimuthal anisotropy of charged hadrons measured at sqrt {radical}(s{sub NN}) = 130 and 200 GeV is presented. The p{sub T}-dependence of baryon versus meson elliptic flow is discussed.
Date: October 16, 2002
Creator: Filimonov, K.; Collaboration, STAR & Collaboration, STAR-RICH
System: The UNT Digital Library
Mixed metal films with switchable optical properties (open access)

Mixed metal films with switchable optical properties

Thin, Pd-capped metallic films containing magnesium and first row transition metals (Mn, Fe, Co) switch reversibly from their initial reflecting state to visually transparent states when exposed to gaseous hydrogen or following cathodic polarization in an alkaline electrolyte. Reversion to the reflecting state is achieved by exposure to air or by anodic polarization. The films were prepared by co-sputtering from one magnesium target and one manganese, iron, or cobalt target. Both the dynamic optical switching range and the speed of the transition depend on the magnesium-transition metal ratio. Infrared spectra of films in the transparent, hydrided (deuterided) states support the presence of the intermetallic hydride phases Mg3MnH7, Mg2FeH6, and Mg2CoH5.
Date: October 16, 2001
Creator: Richardson, Thomas J.; Slack, Jonathan L.; Farangis, Baker & Rubin, Michael D.
System: The UNT Digital Library
Sloan Digital Sky Survey photometric telescope automation and observing software (open access)

Sloan Digital Sky Survey photometric telescope automation and observing software

The photometric telescope (PT) provides observations necessary for the photometric calibration of the Sloan Digital Sky Survey (SDSS). Because the attention of the observing staff is occupied by the operation of the 2.5 meter telescope which takes the survey data proper, the PT must reliably take data with little supervision. In this paper we describe the PT's observing program, MOP, which automates most tasks necessary for observing. MOP's automated target selection is closely modeled on the actions a human observer might take, and is built upon a user interface that can be (and has been) used for manual operation. This results in an interface that makes it easy for an observer to track the activities of the automating procedures and intervene with minimum disturbance when necessary. MOP selects targets from the same list of standard star and calibration fields presented to the user, and chooses standard star fields covering ranges of airmass, color, and time necessary to monitor atmospheric extinction and produce a photometric solution. The software determines when additional standard star fields are unnecessary, and selects survey calibration fields according to availability and priority. Other automated features of MOP, such as maintaining the focus and keeping a night log, …
Date: October 16, 2002
Creator: Eric H. Neilsen, Jr. et al.
System: The UNT Digital Library
ASPECTS OF COULOMB DISSOCIATION AND INTERFERENCE IN PERIPHERAL NUCLEUS - NUCLEUS COLLISIONS. (open access)

ASPECTS OF COULOMB DISSOCIATION AND INTERFERENCE IN PERIPHERAL NUCLEUS - NUCLEUS COLLISIONS.

Coherent vector meson production in peripheral nucleus-nucleus collisions is discussed. These interactions may occur for impact parameters much larger than the sum of the nuclear radii. Since the vector meson production is always localized to one of the nuclei, the system acts as a two-source interferometer in the transverse plane. By tagging the outgoing nuclei for Coulomb dissociation it is possible to obtain a measure of the impact parameter and thus the source separation in the interferometer. This is of particular interest since the life-time of the vector mesons are generally much shorter than the impact parameters of the collisions.
Date: October 16, 2002
Creator: Nystrand, J.; Baltz, A. J. & Klein, S. R.
System: The UNT Digital Library
W boson cross section and decay properties at the Tevatron (open access)

W boson cross section and decay properties at the Tevatron

The authors present the first measurements of {sigma}(p{bar p} {yields} W {yields} {ell}{nu}) and {sigma}(p{bar p} {yields} Z {yields} {ell}{ell}) at {radical}s = 1.96 TeV, along with new measurements of W angular-decay distributions in p{bar p} collisions at {radical}s = 1.8 TeV.
Date: October 16, 2002
Creator: Bloom, K.
System: The UNT Digital Library