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Structure and inference in Japanese right dislocation

Description: Article exploring the syntactic nature of Japanese Right Dislocation Constructions (RDCs) by illuminating the ellipsis sites in the postverbal domains of the constructions via pragmatic inference. Although the most prevailing bi-clausal analysis of RDCs adopts the perspective that the repetition of the antecedent clause occurs in collocation, this paper shows that the same surface strings are potentially ambiguous since right dislocation is a heterogeneous phenomenon. It proposes additional typ… more
Date: September 18, 2020
Creator: Furuya, Kaori
Partner: UNT College of Liberal Arts & Social Sciences
open access

Coherence Brightened Laser Source for Atmospheric Remote Sensing

Description: This article discusses the coherence brightened laser source for atmospheric remote sensing.
Date: September 18, 2012
Creator: Traverso, Andrew J.; Sanchez-Gonzalez, RodrigoTe; Yuan, Luqi; Wang, Kai; Voronine, Dmitri V.; Zheltikov, Aleksei M. et al.
Partner: UNT College of Arts and Sciences
open access

Interactions of Ionic Liquids with Uranium and its Bioreduction

Description: We investigated the influence of ionic liquids (ILs) 1-butyl-3-methylimidazolium hexafluorophosphate [BMIM]{sup +}[PF{sub 6}]{sup -}, N-ethylpyridinium trifluoroacetate [EtPy]{sup +}[CF{sub 3}COO]{sup -} and N-ethylpyridinium tetrafluoroborate [Et-Py]{sup +}[BF{sub 4}]{sup -} on uranium reduction by Clostridium sp. under anaerobic conditions. Potentiometric titration, UV-vis spectrophotometry, LC-MS and EXAFS analyses showed monodentate complexation between uranyl and BF{sub 4}{sup -} PF{sub 6}… more
Date: September 18, 2012
Creator: Zhang, C. & Francis, A.
Partner: UNT Libraries Government Documents Department
open access

2007 Archaea: Ecology, Metabolism and Molecular Biology

Description: The Archaea are a fascinating and diverse group of prokaryotic organisms with deep roots overlapping those of eukaryotes. The focus of this GRC conference, 'Archaea: Ecology Metabolism & Molecular Biology', expands on a number of emerging topics highlighting the evolution and composition of microbial communities and novel archaeal species, their impact on the environment, archaeal metabolism, and research that stems from sequence analysis of archaeal genomes. The strength of this conference lie… more
Date: September 18, 2008
Creator: Gray, Imke Schroeder Nancy Ryan
Partner: UNT Libraries Government Documents Department
open access

Aerial Neutron Detection of Cosmic-Ray Interactions with the Earth's Surface

Description: We have demonstrated the ability to measure the neutron flux produced by the cosmic-ray interaction with nuclei in the ground surface using aerial neutron detection. High energy cosmic-rays (primarily muons with GeV energies) interact with the nuclei in the ground surface and produce energetic neutrons via spallation. At the air-surface interface, the neutrons produced by spallation will either scatter within the surface material, become thermalized and reabsorbed, or be emitted into the air. T… more
Date: September 18, 2008
Creator: Maurer, Richard
Partner: UNT Libraries Government Documents Department
open access

Benchmarking EUV mask inspection beyond 0.25 NA

Description: The SEMATECH Berkeley Actinic Inspection Tool (AIT) is an EUV-wavelength mask inspection microscope designed for direct aerial image measurements, and pre-commercial EUV mask research. Operating on a synchrotron bending magnet beamline, the AIT uses an off-axis Fresnel zoneplate lens to project a high-magnification EUV image directly onto a CCD camera. We present the results of recent system upgrades that have improved the imaging resolution, illumination uniformity, and partial coherence. Benc… more
Date: September 18, 2008
Creator: Goldberg, Kenneth A.; Mochi, Iacopo; Anderson, Erik H.; Rekawa, Seno B.; Kemp, Charles D.; Huh, S. et al.
Partner: UNT Libraries Government Documents Department
open access

Dalitz Plot Analysis of the Decay B0(B0bar) to K^+/- pi^-/+ pi0

Description: The authors report a Dalitz-plot analysis of the charmless hadronic decays of neutral B mesons to K{sup {+-}}{pi}{sup {-+}}{pi}{sup 0}. With a sample of (231.8 {+-} 2.6) x 10{sup 6}{Upsilon}(4S) {yields} B{bar B} decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, they measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes for B{sup 0} and {bar B}{sup 0} decays and determine the corresponding CP-averaged branching fraction… more
Date: September 18, 2008
Creator: Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prudent, X. et al.
Partner: UNT Libraries Government Documents Department
open access

Fission Detection Using the Associated Particle Technique

Description: A beam of tagged 14 MeV neutrons from the deuterium-tritium (DT) reaction is used to induce fission in a target composed of depleted uranium. The generator yield is 107 neutrons/second radiated into a 4π solid angle. Two 4 in.×4 in. NaI detectors are used for gamma-ray detection. The fission process is known to produce multiple gamma-rays and neutrons. Triple coincidences (α-γ-γ) are measured as a function of neutron flight time up to 90 ns after fission, where the α-particle arises from the DT… more
Date: September 18, 2008
Creator: R.P. Keegan, J.P. Hurley, J.R. Tinsley, R. Trainham, S.C. Wilde
Partner: UNT Libraries Government Documents Department
open access

Hadronic B Decays to Charm and Charmonium With the BaBar Experiment

Description: The BABAR experiment has recorded the decays of more than 465 x 10{sup 6} B{bar B} pairs since 1999, and is reaching an unprecedented precision in the measurement of hadronic B decays. The following results are presented: tests of QCD factorization with the decays B {yields} {chi}{sub c0}K*, B {yields} {chi}{sub c1,2}K{sup (*)}, and {bar B}{sup 0} {yields} D{sup (*)0}h{sup 0}, h{sup 0} = {pi}{sup 0}, {eta}, {omega}, {eta}{prime}, study of the decays to charmonium B {yields} {eta}{sub c}K{sup (*… more
Date: September 18, 2008
Creator: Prudent, Xavier
Partner: UNT Libraries Government Documents Department
open access

Next Generation IGBT Switch Plate Development for the SNS High Voltage Converter Modulator

Description: The RF source High Voltage Converter Modulator (HVCM) systems installed on the Spallation Neutron Source (SNS) have operated well in excess of 200,000 hours, during which time numerous failures have occurred. An improved Insulated Gate Bipolar Transistor (IGBT) switch plate is under development to help mitigate these failures. The new design incorporates two significant improvements. The IGBTs are upgraded to 4500 V, 1200 A, press-pack devices, which increase the voltage margin, facilitate bett… more
Date: September 18, 2008
Creator: Kemp, Mark A.; Burkhart, Craig; Nguyen, Minh N. & Anderson, David E.
Partner: UNT Libraries Government Documents Department
open access

Observation of Coherent Optical Transition Radiation in the LCLS Linac

Description: The beam diagnostics in the linac for the Linac Coherent Light Source (LCLS) X-ray FEL project at SLAC includes optical transition radiation (OTR) screens for measurements of transverse and longitudinal beam properties. We report on observations of coherent light emission from the OTR screens (COTR) at visible wavelengths from the uncompressed and compressed electron beam at various stages in the accelerator.
Date: September 18, 2008
Creator: Loosy, H.; Akre, R.; Brachmann, A.; Decker, F. J.; Ding, Y.; Dowell, D. et al.
Partner: UNT Libraries Government Documents Department
open access

Optical Comb Generation for Streak Camera Calibration for Inertial Confinement Fusion Experiments

Description: The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL) is coming on-line to support physics experimentation for the U.S. Department of Energy (DOE) programs in Inertial Confinement Fusion (ICF) and Stockpile Stewardship (SS). Optical streak cameras are an integral part of the experimental diagnostics instrumentation at NIF. To accurately reduce streak camera data a highly accurate temporal calibration is required. This article describes a technique for simultaneou… more
Date: September 18, 2008
Creator: Ronald Justin, Terence Davies, Frans Janson, Bruce Marshall, Perry Bell, Daniel Kalantar, Joseph Kimbrough, Stephen Vernon, Oliver Sweningsen
Partner: UNT Libraries Government Documents Department
open access

Quantifying and Mapping the Digital Divide from an Internet Point of View

Description: Quantitative knowledge of the magnitude, extent and trends of the Digital Divide are critical to understand and identify the regions most in need of help, to make rational decisions on how to address the problems and to make cases for executives, funding agencies and politicians. We report on a project (PingER) to measure the Digital Divide from the point of view of Internet performance. The PingER project has been measuring Internet performance since 1995 and with the increased emphasis on mea… more
Date: September 18, 2008
Creator: Cottrell, R.Les; Khan, Shahryar; Williams, Jerrod; Mehdi, Akbar; Kalim, Umar & Ali, Arshad
Partner: UNT Libraries Government Documents Department
open access

The Simplest Double Slit: Interference and Entanglement in Double Photoionization of H2

Description: The wave nature of particles is rarely seen in nature. One reason is their very short de Broglie wavelengths in most situations. However, even with wavelengths close to the size of their surroundings, they couple to their environment, e.g. by gravity, Coulomb interaction, or thermal radiation. These couplings shift the phase of the waves, often in an uncontrolled way, hence yielding varying amounts of decoherence i.e. loss of phase integrity. Decoherence is thought to be a main cause of the tra… more
Date: September 18, 2007
Creator: Akoury , D.; Kreidi, K.; Jahnke , T.; Weber, Th.; Staudte , A.; Schoffler, M. et al.
Partner: UNT Libraries Government Documents Department
open access

Hunting the Scalar Glueball: Prospects for BES III

Description: The search for the ground state scalar glueball $G_0$ isreviewed. Spin zero glueballs will have unique dynamical properties ifthe $<G_0|\overline qq>$ amplitude is suppressed by chiralsymmetry, as it is to all orders in perturbation theory: for instance,mixing of $G_0$ with $\overline qq$ mesons would be suppressed, radiative$\jp$ decay would be a filter for new physics in the spin zero channel,and the decay $G_0 \rightarrow \overline KK$ could be enhanced relativeto $G_0 \rightarrow \pi \pi$. … more
Date: September 18, 2006
Creator: Chanowitz, Michael S.
Partner: UNT Libraries Government Documents Department
open access

Measurements of the Field Quality in Superconducting Dipoles at High Ramp Rates.

Description: Several recent applications of superconducting magnets require the magnets to be operated at high ramp rates and at frequencies of several Hertz. Brookhaven National Laboratory (BNL) has recently designed and built prototypes of superconducting dipole magnets that can be ramped at a fairly high rate (1 T/s or more). For accelerator applications, it is also crucial that the magnets maintain good field quality even at high ramp rates. In order to characterize the field quality of magnets at high … more
Date: September 18, 2006
Creator: Jain, A.; Escallier, J.; Ganetis, G.; Louie, W.; Marone, A.; Thomas, R. et al.
Partner: UNT Libraries Government Documents Department
open access

On the Nature of Ultraluminous X-Ray Sources, Or What a Black Hole Should Look Like

Description: We derive the luminosity-temperature relation for the accreting black holes (BHs). At the accretion rates below the critical Eddington, the BHs are described by the standard Shakura-Sunyaev model resulting in the L {infinity} T{sup 4} {infinity} M relation. At super-Eddington rates, {dot m} = {dot M}/{dot M}{sub Edd} &gt;&gt; 1, a strong outflow forms within the spherization radius R{sub sp} {infinity} {dot M}. If the angular momentum of the outflowing matter is conserved and typical outflow ve… more
Date: September 18, 2006
Creator: Poutanen, Juri; /Oulu U. /KIPAC, Menlo Park; Fabrika, Sergei; /Stavropol, Astrophys. Observ.; Butkevich, Alexey G.; /Oulu U. /Pulkovo Observ., St. Petersburg et al.
Partner: UNT Libraries Government Documents Department
open access

Studies of Actinides Reduction on Iron Surfaces by Means ofResonant Inelastic X-ray Scattering

Description: The interaction of actinides with corroded iron surfaces was studied using resonant inelastic x-ray scattering (RIXS) spectroscopy at actinide 5d edges. RIXS profiles, corresponding to the f-f excitations are found to be very sensitive to the chemical states of actinides in different systems. Our results clearly indicate that U(VI) (as soluble uranyl ion) was reduced to U(IV) in the form of relatively insoluble uranium species, indicating that the iron presence significantly affects the mobilit… more
Date: September 18, 2006
Creator: Kvashnina, K.O.; Butorin, S.M.; Shuh, D.K.; Ollila, K.; Soroka,I.; Guo, J.-H. et al.
Partner: UNT Libraries Government Documents Department
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