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CP VIOLATION HIGHLIGHTS: CIRCA 2005

Description: Recent highlights in CP violation phenomena, are reviewed. B-factory results imply that, CP-violation phase in the CKM matrix is the dominant contributor to the observed CP violation in K and B-physics. Deviations from the predictions of the CKM-paradigm due to beyond the Standard Model CP-odd phase are likely to be a small perturbation. Therefore, large data sample of clean B's will be needed. Precise determination of the unitarity triangle, along with time dependent CP in penguin dominated ha… more
Date: February 27, 2005
Creator: A., SONI
Partner: UNT Libraries Government Documents Department
open access

THE PHENIX EXPERIMENT AT RHIC.

Description: PHENIX is a large detector at the Relativistic Heavy Ion Collider (RHIC) at BNL. RHIC and PHENIX have recently operated for the first time, producing and detecting collisions of gold ions at beam energies of 30 and 65 GeV per nucleon. The current performance and future plans of PHENIX and of RHIC are presented.
Date: July 27, 2000
Creator: ARONSON,S. FOR THE PHENIX COLLABORATION
Partner: UNT Libraries Government Documents Department
open access

DETERMINING THE RATIO OF THE H+ YIELDS TV TO H+ YIELDS TB DECAY RATES FOR LARGE TAN BETA AT THE LARGE HADRON COLLIDER.

Description: We present results on the determination of the observable ratio R = BR(H{sup +} {yields} {tau}{sup +}{nu}{sup -})/BR(H{sup +} {yields} t{bar b}) of charged Higgs boson decay rates as a discriminant quantity between Supersymmetric and non-Supersymmetric models. Simulation of measurements of this quantity through the analysis of the charged Higgs production process gb {yields} tbH{sup +} and relative backgrounds in the two above decay channels has been performed in the context of ATLAS. A {approx… more
Date: May 27, 2003
Creator: ASSAMAGAN,K. A. GUASCH,J. MORETTI,S. PENARANDA,S.
Partner: UNT Libraries Government Documents Department
open access

Management and Retrieval of Historical Nuclear Waste Previously Prepared and Concreted for Sea Disposal

Description: This paper describes the approach of dealing with an historic legacy of pharmaceutical manufacturing operations, which arose as a result of the temporary cessation of sea disposal in 1983. The result of that cessation was an accumulation of 1,000 reinforced concrete lined steel drums containing intermediate level nuclear waste of mixed chemical and physical form. Included are the steps taken which established a policy, the resulting strategy and the unique and innovative means by which the plan… more
Date: February 27, 2002
Creator: Abbott, H. & Davies, E.
Partner: UNT Libraries Government Documents Department
open access

The Framework for Approximate Queries on Simulation Data

Description: AQSim is a system intended to enable scientists to query and analyze a large volume of scientific simulation data. The system uses the state of the art in approximate query processing techniques to build a novel framework for progressive data analysis. These techniques are used to define a multi-resolution index, where each node contains multiple models of the data. The benefits of these models are two-fold: (1) they are compact representations, reconstructing only the information relevant to t… more
Date: September 27, 2001
Creator: Abdulla, G.; Baldwin, C.; Critchlow, T.; Kamimura, R.; Lee, B.; Musick, R. et al.
Partner: UNT Libraries Government Documents Department
open access

Analysis and optimization of an adsorption air conditioner for electric vehicle applications

Description: This paper shows an analysis of the applicability of an adsorption system for electric vehicle (EV) air conditioning. Adsorption systems are designed and optimized to provide the required cooling for four combinations of vehicle characteristics and driving cycles. The resulting adsorption systems are compared with vapor compression air conditioners that can satisfy the cooling load. The objective function is the overall system weight, which includes the cooling system weight and the weight of t… more
Date: July 27, 1994
Creator: Aceves, S. M.
Partner: UNT Libraries Government Documents Department
open access

Adsorption air conditioner for electric vehicle applications. Revision 1

Description: This paper shows an analysis of the applicability of an adsorption system for electric vehicle (EV) air conditioning. Adsorption systems are designed and optimized to provide the required cooling for four combinations of vehicle characteristics and driving cycles. The resulting adsorption systems are compared with vapor compression air conditioners that can satisfy the cooling load. The objective function is the overall system weight, which includes the cooling system weight and the weight of t… more
Date: July 27, 1994
Creator: Aceves, S.M.
Partner: UNT Libraries Government Documents Department
open access

SYNROC production using a fluid bed calciner

Description: SYNROC is a titanate-based ceramic developed for immobilization of high-level nuclear reactor wastes in solid form. Fluid-bed SYNROC production permits slurry drying, calcining and redox to be carried out in a single unit. We present results of studies from two fluid beds; the Idaho Exxon internally-heated unit and the externally-heated unit constructed at Lawrence Livermore National laboratory. Bed operation over a range of temperature, feed rate, fluidizing rate and redox conditions indicate … more
Date: September 27, 1982
Creator: Ackerman, F. J.; Grens, J. Z.; Ryerson, F. J.; Hoenig, C. L.; Bazan, F. & Campbell, J. H.
Partner: UNT Libraries Government Documents Department
open access

Computational Modeling of K-shell Argon Spectra from Z-pinch Dynamic Hohlraum Experiments

Description: Z-pinch dynamic hohlraum experiments on the Z-Machine at Sandia National Laboratories measured K-shell argon spectra using a focusing spectrometer with spatial resolution. The spectra are modeled using Hullac atomic data input, Cretin nonlocal thermodynamic equilibrium (nlte) atomic kinetics and radiative transfer calculations, and Dakota optimization capabilities. Hullac provides atomic structure and cross section data for Ar XIX, Ar XXVIII (n=1 (illegible) 5), Ar XXVII (n=1 (illegible) 10), a… more
Date: October 27, 2004
Creator: Adams, M L; Sinars, D B; Scott, H A; Brandon, S T; Chung, H K & Lee, R W
Partner: UNT Libraries Government Documents Department
open access

Structure and Electronic Properties of Cerium Orthophosphate: Theory and Experiment

Description: Structural and electronic properties of cerium orthophosphate (CePO{sub 4}) are calculated using density functional theory (DFT) with the local spin-density approximation (LSDA+U), with and without gradient corrections (GGA-(PBE)+U), and compared to X-ray diffraction and photoemission spectroscopy measurements. The density of states is found to change significantly as the Hubbard parameter U, which is applied to the Ce 4f states, is varied from 0 to 5 eV. The calculated structural properties ar… more
Date: July 27, 2010
Creator: Adelstein, Nicole; Mun, B. Simon; Ray, Hannah; Ross Jr, Phillip; Neaton, Jeffrey & De Jonghe, Lutgard
Partner: UNT Libraries Government Documents Department
open access

Scaling behavior in interference lithography

Description: Interference lithography is an emerging, technology that provides a means for achieving high resolution over large exposure areas (approximately 1 m{sup 2}) with virtually unlimited depth of field. One- and two-dimensional arrays of deep submicron structures can be created using near i-line wavelengths and standard resist processing. In this paper, we report on recent advances in the development of this technology, focusing, in particular, on how exposure latitude and resist profile scale with … more
Date: February 27, 1998
Creator: Agayan, R.R.; Banyai, W.C. & Fernandez, A.
Partner: UNT Libraries Government Documents Department
open access

Building Material Characterization Using a Concrete Floor and Wall Contamination Profiling Technology

Description: Certain radioisotopes can penetrate concrete and contaminate the concrete well below the surface. The challenge is to determine the extent and magnitude of the contamination problem in real-time. The concrete profiling technology, TRUPROSM in conjunction with portable radiometric instrumentation produces a profile of radiological or chemical contamination through the material being studied. The data quality, quantity, and representativeness may be used to produce an activity profile from the ho… more
Date: February 27, 2003
Creator: Aggarwal, S.; Charters, G. & Thacker, D.
Partner: UNT Libraries Government Documents Department
open access

A PYY Q62P variant linked to human obesity

Description: Members of the pancreatic polypeptide family and the irreceptors have been implicated in the control of food intake in rodents and humans. To investigate whether nucleotide changes in these candidate genes result in abnormal weight in humans, we sequenced the coding exons and splice sites of seven family members (NPY, PYY, PPY, NPY1R, NPY2R, NPY4R, and NPY5R) in a large cohort of extremely obese (n=379) and lean (n=378) individuals. In total we found eleven rare non-synonymous variants, four of… more
Date: June 27, 2005
Creator: Ahituv, Nadav; Kavaslar, Nihan; Schackwitz, Wendy; Ustaszewska,Anna; Collier, John Michael; Hebert, Sybil et al.
Partner: UNT Libraries Government Documents Department
open access

Commercial Application of Plasma Mass Separation in the Archimedes Filter Plant

Description: This paper describes the commercial application of an innovative plasma mass separator called the Archimedes Filter to a pre-treatment plant that can be integrated into the U.S. Department of Energy (DOE) Hanford and Savannah River Sites to significantly enhance the treatment of radioactive high-level waste. The output of the Archimedes Filter is completely compatible with existing waste immobilization processes such as vitrification and requires no new waste form to be developed. A full-geomet… more
Date: February 27, 2003
Creator: Ahlfeld, C.E.; Gilleland, J.G. & Wagoner, J.D.
Partner: UNT Libraries Government Documents Department
open access

Phase Diagram of Iron, Revised-Core Temperatures

Description: Shock-wave experiments on iron preheated to 1,573 K conducted from 14 to 73 GPa, yield new data for sound velocities of the {gamma}- and liquid-phases. Melting was observed in the highest pressure ({approximately} 71 {+-} 2 GPa) experiments at calculated shock temperatures of 2,775 {+-} 160 K. This single crossing of the {gamma}-liquid boundary measured here agrees closely with the {gamma}-iron melting line determined by Boehler [1993], Saxena et al. [1993], and Jephcoat and Besedin [1997]. Thi… more
Date: January 27, 1999
Creator: Ahrens, T.J.; Chen, G.Q. & Holland, K.G.
Partner: UNT Libraries Government Documents Department
open access

Descriptive Complexity in Cantor Series

Description: Article discusses how a Cantor series expansion for a real number x with respect to a basic sequence Q=(q), where qi≥2, is a generalization of the base b expansion to an infinite sequence of bases. The authors show that for any basic sequence the set of distribution normal numbers is Π03-complete, and if Q is 1-divergent then the sets of normal and ratio normal numbers are Π03-complete.
Date: September 27, 2021
Creator: Airey, Dylan; Jackson, Steve & Mance, Bill
Partner: UNT College of Science
open access

Galaxy Clusters in the Swift/Bat Era Ii: 10 More Clusters Detected Above 15 Kev

Description: We report on the discovery of 10 additional galaxy clusters detected in the ongoing Swift/BAT all-sky survey. Among the newly BAT-discovered clusters there are: Bullet, Abell 85, Norma, and PKS 0745-19. Norma is the only cluster, among those presented here, which is resolved by BAT. For all the clusters we perform a detailed spectral analysis using XMM-Newton and Swift/BAT data to investigate the presence of a hard (non-thermal) X-ray excess. We find that in most cases the clusters emission in … more
Date: October 27, 2010
Creator: Ajello, M.; Rebusco, P.; Cappelluti, N.; Reimer, O.; Boehringer, H.; La Parola, V. et al.
Partner: UNT Libraries Government Documents Department
open access

The regulatory compliance plan for the Minimum Additive Waste Stabilization (MAWS) Program

Description: The Fernald Environmental Management Project (FEMP) has initiated the Minimum Additive Waste Stabilization (MAWS) Program to demonstrate and evaluate integrated treatment of the FEMP site`s Operable Unit 1 contaminated soils and sludges. The demonstration will require on-site operation of an integrated treatment system consisting of soil washing, water treatment by ion exchange, and vitrification of all contaminated solid wastes at a rate of 300 kg per day. Compliance with all relevant environm… more
Date: January 27, 1993
Creator: Akgunduz, N. K.; Gimpel, R. F. & Finger, S. M.
Partner: UNT Libraries Government Documents Department
open access

Z-Pinch Driven Inertial Confinement Fusion Target Physics Research at Sandia National Laboratories

Description: Three hohlraum concepts are being pursued at Sandia National Laboratories (SNL) to investigate the possibility of using pulsed power driven magnetic implosions (z-pinches) to drive high gain targets capable of yields in the range of 200-1000 MJ. This research is being conducted on SNL'S.Z facility that is capable of driving peak currents of 20 MA in z-pinch loads producing implosion velocities as high as 7.5X 107 cm/s, x-ray energies approaching 2 MJ, and x-ray powers exceeding 200 TW. This pap… more
Date: October 27, 1998
Creator: Alberts, T. E.; Asay, J. R.; Baca, P. M.; Baker, K. L.; Breeze, S. P.; Chandler, G. A. et al.
Partner: UNT Libraries Government Documents Department
open access

Binary Microlensing Events from the MACHO Project

Description: This article presents the light curves of 21 gravitational microlensing events from the first six years of the MACHO Project gravitational microlensing survey that are likely examples of lensing by binary systems.
Date: March 27, 2000
Creator: Alcock, C.; Allsman, R. A.; Alves, D.; Axelrod, T. S.; Baines, D.; Becker, A. C. et al.
Partner: UNT College of Arts and Sciences
open access

Adaptive optics high resolution spectroscopy: present status and future direction

Description: High resolution spectroscopy experiments with visible adaptive optics (AO) telescopes at Starfire Optical Range and Mt. Wilson have demonstrated that spectral resolution can be routinely improved by a factor of - 10 over the seeing-limited case with no extra light losses at visible wavelengths. With large CCDs now available, a very wide wavelength range can be covered in a single exposure. In the near future, most large ground-based telescopes will be equipped with powerful A0 systems. Most of … more
Date: July 27, 1999
Creator: Alcock, C.; Angel, R.; Ciarlo, D.; Fugate, R. O.; Ge, J.; Kuzmenko, P. et al.
Partner: UNT Libraries Government Documents Department
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