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17 USC 108(h): The “Last Twenty Years” Exception

Description: This document is part of a series of white papers on various copyright issues. One statute, 17 USC § 108, provides a number of exceptions specifically for libraries. In addition to fair use, there are a variety of other exceptions built into the copyright law that don’t get as much attention.This paper specifically addresses one of 108’s lesser-used provisions and the value it may hold for libraries and archives: 108(h).
Date: December 2017
Creator: Wolfson, Stephen M.
Partner: UNT Libraries
open access

G6f-Like Is an ITAM-Containing Collagen Receptor in Thrombocytes

Description: Article discussing how G6f-like is an ITAM-containing collagen receptor in thrombocytes.
Date: December 2012
Creator: Hughes, Craig E.; Radhakrishnan, Uvaraj P.; Lordkipanidzé, Marie; Egginton, S.; Dijkstra, Johannes M.; Jagadeeswaran, Pudur et al.
Partner: UNT College of Arts and Sciences
open access

Analysis of the Genome of a Korean Isolate of the Pieris rapae Granulovirus Enabled by Its Separation from Total Host Genomic DNA by Pulse-Field Electrophoresis

Description: Article on an analysis of the genome of a Korean isolate of the Pieris rapae granulovirus enabled by its separation from total host genomic DNA by pulse-field electrophoresis.
Date: December 31, 2013
Creator: Jo, Yong Hun; Patnaik, Bharat Bhusan; Kang, Se Won; Chae, Sung-Hwa; Oh, Seunghan; Kim, Dong Hyun et al.
Partner: UNT College of Arts and Sciences
open access

Internet Use in Latin America

Description: This paper explores the development of Internet use in Latin America by exploring the macro- and micro-social expectations and actualities of Internet use.
Date: December 2011
Creator: Salzman, Ryan & Albarran, Alan B.
Partner: UNT College of Visual Arts + Design
open access

Virtualization Based Secure Execution And Testing Framework

Description: Article discussing the use of a virtualization software to build a Virtualization Based Secure Execution and Testing Framework for testing hardware secure architectures.
Date: December 2011
Creator: Kotikela, Srujan Das; Nimgaonkar, Satyajeet & Gomathisankaran, Mahadevan
Partner: UNT College of Engineering
open access

Charmed Hadron Physics at BABAR

Description: We present a study of the D{sup +}{pi}{sup -}, D{sup 0}{pi}{sup +}, and D*{sup +}{pi}{sup -} systems in inclusive e{sup +}e{sup -} {yields} c{bar c} interactions in a search for new excited D meson states. We use a dataset, consisting of {approx}454 fb{sup -1}, collected at center-of-mass energies near 10.58 GeV by the BABAR detector at the SLAC PEP-II asymmetric-energy collider. We observe, for the first time, candidates for the radial excitations of the D{sup 0}, D*{sup 0}, and D*{sup +}, as … more
Date: December 16, 2010
Creator: Benitez, Jose
Partner: UNT Libraries Government Documents Department
open access

Using a two-step matrix solution to reduce the run time in KULL's magnetic diffusion package

Description: Recently a Resistive Magnetohydrodynamics (MHD) package has been added to the KULL code. In order to be compatible with the underlying hydrodynamics algorithm, a new sub-zonal magnetics discretization was developed that supports arbitrary polygonal and polyhedral zones. This flexibility comes at the cost of many more unknowns per zone - approximately ten times more for a hexahedral mesh. We can eliminate some (or all, depending on the dimensionality) of the extra unknowns from the global matrix… more
Date: December 17, 2010
Creator: Brunner, T A & Kolev, T V
Partner: UNT Libraries Government Documents Department
open access

Toward TW-Level, Hard X-Ray Pulses at LCLS

Description: Coherent diffraction imaging of complex molecules such as proteins requires a large number (e.g., {approx} 10{sup 13}/pulse) of hard X-ray photons within a time scale of {approx} 10 fs or less. This corresponds to a peak power of {approx} 1 TW, much larger than that currently generated by LCLS or other proposed X-ray free electron lasers (FELs). We study the feasibility of producing such pulses using a LCLS-like, low charge electron beam, as will be possible in the LCLS-II upgrade project, empl… more
Date: December 13, 2011
Creator: Fawley, W. M.; Frisch, J.; Huang, Z.; Jiao, Y.; Nuhn, H. D.; Pellegrini, C. et al.
Partner: UNT Libraries Government Documents Department
open access

The use of a high-order MEMS deformable mirror in the Gemini Planet Imager

Description: We briefly review the development history of the Gemini Planet Imager's 4K Boston Micromachines MEMS deformable mirror. We discuss essential calibration steps and algorithms to control the MEMS with nanometer precision, including voltage-phase calibration and influence function characterization. We discuss the integration of the MEMS into GPI's Adaptive Optics system at Lawrence Livermore and present experimental results of 1.5 kHz closed-loop control. We detail mitigation strategies in the cor… more
Date: December 17, 2010
Creator: Poyneer, L. A.; Bauman, B.; Cornelissen, S.; Jones, S.; Macintosh, B.; Palmer, D. et al.
Partner: UNT Libraries Government Documents Department
open access

The National Ignition Facility and the Promise of Inertial Fusion Energy

Description: The National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory (LLNL) in Livermore, CA, is now operational. The NIF is the world's most energetic laser system capable of producing 1.8 MJ and 500 TW of ultraviolet light. By concentrating the energy from its 192 extremely energetic laser beams into a mm{sup 3}-sized target, NIF can produce temperatures above 100 million K, densities of 1,000 g/cm{sup 3}, and pressures 100 billion times atmospheric pressure - conditions that ha… more
Date: December 13, 2010
Creator: Moses, E I
Partner: UNT Libraries Government Documents Department
open access

A Hierarchical Control Architecture for a PEBB-Based ILC Marx Modulator

Description: The idea of building power conversion systems around Power Electronic Building Blocks (PEBBs) was initiated by the U.S. Office of Naval Research in the mid 1990s. A PEBB-based design approach is advantageous in terms of power density, modularity, reliability, and serviceability. It is obvious that this approach has much appeal for pulsed power conversion including the International Linear Collider (ILC) klystron modulator application. A hierarchical control architecture has the inherent capabil… more
Date: December 15, 2011
Creator: Macken, K.; Burkhart, C.; Larsen, R.; Nguyen, M. N. & Olsen, J.
Partner: UNT Libraries Government Documents Department
open access

INSTALLATION OF BUBBLERS IN THE SAVANNAH RIVER SITED DEFENSE WASTE PROCESSING FACILITY MELTER

Description: Savannah River Remediation (SRR) LLC assumed the liquid waste contract at the Savannah River Site (SRS) in the summer of 2009. The main contractual agreement was to close 22 High Level Waste (HLW) tanks in eight years. To achieve this aggressive commitment, faster waste processing throughout the SRS liquid waste facilities will be required. Part of the approach to achieve faster waste processing is to increase the canister production rate of the Defense Waste Processing Facility (DWPF) from app… more
Date: December 8, 2010
Creator: Smith, M. & Iverson, D.
Partner: UNT Libraries Government Documents Department
open access

Effects of Changing Atmospheric Conditions on Wind Turbine Performance (Poster)

Description: Multi-megawatt, utility-scale wind turbines operate in turbulent and dynamic winds that impact turbine performance in ways that are gradually becoming better understood. This poster presents a study made using a turbulent flow field simulator (TurbSim) and a Turbine aeroelastic simulator (FAST) of the response of a generic 1.5 MW wind turbine to changing inflow. The turbine power output is found to be most sensitive to wind speed and turbulence intensity, but the relationship depends on the win… more
Date: December 1, 2012
Creator: Clifton, A.
Partner: UNT Libraries Government Documents Department
open access

Search for 14.4-KeV Solar Axions Emitted in the M1-Transition of Fe-57 Nuclei with CAST

Description: We have searched for 14.4 keV solar axions or more general axion-like particles (ALPs), that may be emitted in the M1 nuclear transition of 57Fe, by using the axion-to-photon conversion in the CERN Axion Solar Telescope (CAST) with evacuated magnet bores (Phase I). From the absence of excess of the monoenergetic X-rays when the magnet was pointing to the Sun, we set model-independent constraints on the coupling constants of pseudoscalar particles that couple to two photons and to a nucleon g{su… more
Date: December 2, 2011
Creator: Andriamonje, S.; Aune, S.; Autiero, D.; Barth, K.; Belov, A.; Beltran, B. et al.
Partner: UNT Libraries Government Documents Department
open access

Summary of session 3 on synchrotron radiation and beam dynamics

Description: We summarize presentations, discussions and general conclusions of the Workshop session on 'Beam Dynamics Issues'. Major subjects include effects due to synchrotron radiation (SR), cryogenic loads, electron cloud, impedances, intra-beam scattering (IBS) and beam-beam interactions.
Date: December 1, 2010
Creator: Shiltsev, V. & Metral, E.
Partner: UNT Libraries Government Documents Department
open access

The nature of the lightest scalar meson, its N_c behaviour and semi-local duality

Description: One-loop unitarized Chiral Perturbation Theory (UChPT) calculations, suggest a different N{sub c} behaviour for the {sigma} or f{sub 0}(600) and {rho}(770) mesons: while the {rho} meson becomes narrower with N{sub c}, as expected for a {bar q}q meson, the f{sub 0}(600) contribution to the total cross section below 1 GeV becomes less and less important. Here we review our recent work where we have shown, by means of finite energy sum rules, that a different N{sub c} behavior for these resonances… more
Date: December 1, 2011
Creator: JR Pelaez, MR Pennington, J Ruiz de Elvira, DJ Wilson
Partner: UNT Libraries Government Documents Department
open access

Adjoint-Based Implicit Uncertainty Analysis for Figures of Merit in a Laser Inertial Fusion Engine

Description: A primary purpose of computational models is to inform design decisions and, in order to make those decisions reliably, the confidence in the results of such models must be estimated. Monte Carlo neutron transport models are common tools for reactor designers. These types of models contain several sources of uncertainty that propagate onto the model predictions. Two uncertainties worthy of note are (1) experimental and evaluation uncertainties of nuclear data that inform all neutron transport m… more
Date: December 3, 2010
Creator: Seifried, J. E.; Fratoni, M.; Kramer, K. J.; Latkowski, J. F.; Peterson, P. F.; Powers, J. J. et al.
Partner: UNT Libraries Government Documents Department
open access

Femtosecond X-ray Pulse Temporal Characterization in Free-Electron Lasers Using a Transverse Deflector

Description: We propose a novel method to characterize the temporal duration and shape of femtosecond x-ray pulses in a free-electron laser (FEL) by measuring the time-resolved electron-beam energy loss and energy spread induced by the FEL process, with a transverse radio-frequency deflector located after the undulator. Its merits are simplicity, high resolution, wide diagnostic range, and non-invasive to user operation. When the system is applied to the Linac Coherent Light Source, the first hard x-ray fre… more
Date: December 13, 2011
Creator: Ding, Y.; Behrens, C.; Emma, P.; Frisch, J.; Huang, Z.; Loos, H. et al.
Partner: UNT Libraries Government Documents Department
open access

Search for universal extra dimensions in ppbar collisions

Description: We present a search for Kaluza-Klein (KK) particles predicted by models with universal extra dimensions (UED) using a data set corresponding to an integrated luminosity of 7.3 fb{sup -1}, collected by the D0 detector at a p{bar p} center of mass energy of 1.96 TeV. The decay chain of KK particles can lead to a final state with two muons of the same charge. This signature is used to set a lower limit on the compactification scale of R{sup -1} > 260 GeV in a minimal UED model.
Date: December 1, 2011
Creator: Abazov, Victor Mukhamedovich; /Dubna, JINR; Abbott, Braden Keim; U., /Oklahoma; Acharya, Bannanje Sripath; Inst., /Tata et al.
Partner: UNT Libraries Government Documents Department
open access

Theory of Microwave Instability and Coherent Synchrotron Radiation in Electron Storage Rings

Description: Bursting of coherent synchrotron radiation has been observed and in fact used to generate THz radiation in many electron storage rings. In order to understand and control the bursting, we return to the study of the microwave instability. In this paper, we will report on the theoretical understanding, including recent developments, of the microwave instability in electron storage rings. The historical progress of the theories will be surveyed, starting from the dispersion relation of coasting be… more
Date: December 9, 2011
Creator: Cai, Y.
Partner: UNT Libraries Government Documents Department
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