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open access

$D^0 \bar{D}^0$ Mixing at BaBar

Description: This article reviews the recent measurement of D{sup 0}-{bar D}{sup 0} mixing with the D{sup 0} {yields} K{pi} decay channel from the BABAR experiment at the PEP-II B-Factory. Averages from the Heavy Flavor Averaging Group between this result and a previous result from BELLE are also presented.
Date: October 26, 2011
Creator: Coleman, Jonathon
Partner: UNT Libraries Government Documents Department
open access

1:1 iPads in 1st Grade: Two-Year Case Study of a Teacher's Concerns, Use, and Innovation Configuration

Description: This chapter reports the findings of a two-year case study of how one first-grade teacher in a Florida charter school with 1:1 iPads progresses through stages of concerns and levels of use to achieve technological innovation. Findings inform technology integration practices and emphasize the importance of acknowledging change concerns associated with technology acceptance.
Date: 2019
Creator: Eutsler, Lauren
Partner: UNT College of Education

1 & 2 Thessalonians in the Lamkang Language

Description: Lamkang translation of the New Testament books of First and Second Thessalonians from the Bible. Translated into Lamkang by Tholung Daniel along with the other consultants of Lamkang.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: 2014
Creator: Evangel Bible Translators
Partner: UNT College of Information
open access

1.3 GHz superconducting RF cavity program at Fermilab

Description: At Fermilab, 9-cell 1.3 GHz superconducting RF (SRF) cavities are prepared, qualified, and assembled into cryomodules (CMs) for Project X, an International Linear Collider (ILC), or other future projects. The 1.3 GHz SRF cavity program includes targeted R&D on 1-cell 1.3 GHz cavities for cavity performance improvement. Production cavity qualification includes cavity inspection, surface processing, clean assembly, and one or more cryogenic low-power CW qualification tests which typically inc… more
Date: March 1, 2011
Creator: Ginsburg, C. M.; Arkan, T.; Barbanotti, S.; Carter, H.; Champion, M.; Cooley, L. et al.
Partner: UNT Libraries Government Documents Department
open access

1?10 kW Stationary Combined Heat and Power Systems Status and Technical Potential: Independent Review

Description: This independent review examines the status and technical potential of 1-10 kW stationary combined heat and power fuel cell systems and analyzes the achievability of the DOE cost, efficiency, and durability targets for 2012, 2015, and 2020.
Date: November 1, 2010
Creator: Maru, H. C.; Singhal, S. C.; Stone, C. & Wheeler, D.
Partner: UNT Libraries Government Documents Department
open access

1.5D Quasilinear Model for Alpha Particle-TAE Interaction in ARIES ACT-I

Description: We study the TAE interaction with alpha particle fusion products in ARIES ACT-I using the 1.5D quasilinear model. 1.5D uses linear analytic expressions for growth and damping rates of TAE modes evaluated using TRANSP pro les to calculates the relaxation of pressure pro les. NOVA- K simulations are conducted to validate the analytic dependancies of the rates, and to normalize their absolute value. The low dimensionality of the model permits calculating loss diagrams in large parameter spaces.
Date: January 30, 2013
Creator: Ghantous, K.; Gorelenkov, N. N.; Kessel, C. & Poli, F.
Partner: UNT Libraries Government Documents Department
open access

1-D Van der Waals Foams Heated by Ion Beam Energy Deposition

Description: One dimensional simulations of various initial average density aluminum foams (modeled as slabs of solid metal separated by low density regions) heated by volumetric energy deposition are conducted with a Lagrangian hydrodynamics code using a van der Waals equation of state (EOS). The resulting behavior is studied to facilitate the design of future warm dense matter (WDM) experiments at LBNL. In the simulations the energy deposition ranges from 10 to 30 kJ/g and from 0.075 to 4.0 ns total pulse… more
Date: March 19, 2010
Creator: Zylstra, A; Barnard, J J & More, R M
Partner: UNT Libraries Government Documents Department
open access

1 GeV CW nonscaling FFAG for ADS, and magnet parameters

Description: Multi-MW proton driver capability remains a challenging, critical technology for many core HEP programs, particularly the neutrino ones such as the Muon Collider and Neutrino factory, and for high-profile energy applications such as Accelerator Driven Subcritical Reactors (ADS) and Accelerator Transmutation of Waste for nuclear power and waste management. Work is focused almost exclusively on an SRF linac, as, to date, no re-circulating accelerator can attain the 10-20 MW capability necessary f… more
Date: May 20, 2012
Creator: Johnstone, C.; Meot, F.; Snopok, P. & Weng, W.
Partner: UNT Libraries Government Documents Department
open access

1 mil gold bond wire study.

Description: In microcircuit fabrication, the diameter and length of a bond wire have been shown to both affect the current versus fusing time ratio of a bond wire as well as the gap length of the fused wire. This study investigated the impact of current level on the time-to-open and gap length of 1 mil by 60 mil gold bond wires. During the experiments, constant current was provided for a control set of bond wires for 250ms, 410ms and until the wire fused; non-destructively pull-tested wires for 250ms; and … more
Date: May 1, 2013
Creator: Huff, Johnathon; McLean, Michael B.; Jenkins, Mark W. & Rutherford, Brian Milne
Partner: UNT Libraries Government Documents Department

2,490 Feet

Description: The work is a coiled piece of paper that measures 2,490 feet when unwound. Pieces of white string tie sections to hold it in place.
Date: 2011/2012
Creator: Lawrence, Annette
Partner: UNT College of Visual Arts + Design
open access

2 x 2 Polyethylene Reflected and Moderated Highly Enriched Uranium System with Rhenium

Description: The 2 × 2 array HEU-Re experiment was performed on the Planet universal critical assembly machine on November 4th, 2003 at the Los Alamos Critical Experiments Facility (LACEF) at Los Alamos National Laboratory (LANL). For this experiment, there were 10 ½ units, each full unit containing four HEU foils and two rhenium foils. The top unit contained only two HEU foils and two rhenium foils. A total of 42 HEU foils were used for this experiment. Rhenium is a desirable cladding material for space nu… more
Date: September 1, 2010
Creator: Ellis, A. Nichole; Hutchinson, Jesson; Bess, John D.; Polyakov, Dmitry N.; Glushkov, Evgeny S. & Glushkov, Alexey E.
Partner: UNT Libraries Government Documents Department
open access

3,4,3-LI(1,2-HOPO): In Vitro Formation of Highly Stable Lanthanide Complexes Translates into Efficacious In Vivo Europium Decorporation

Description: The spermine-based hydroxypyridonate octadentate chelator 3,4,3-LI(1,2-HOPO) was investigated for its ability to act as an antennae that sensitizes the emission of Sm{sup III}, Eu{sup III}, and Tb{sup III} in the Visible range (Φ{sub tot} = 0.2 - 7%) and the emission of Pr{sup III}, Nd{sup III}, Sm{sup III}, and Yb{sup III} in the Near Infra-Red range, with decay times varying from 1.78 μs to 805 μs at room temperature. The particular luminescence spectroscopic properties of these lanthanide co… more
Date: July 13, 2011
Creator: Sturzbecher-Hoehne, Manuel; Ng Pak Leung, Clara; Daleo, Anthony; Kullgren, Birgitta; Prigent, Anne-Laure; Shuh, David K. et al.
Partner: UNT Libraries Government Documents Department
open access

3-D Mapping Technologies for High Level Waste Tanks

Description: This research investigated four techniques that could be applicable for mapping of solids remaining in radioactive waste tanks at the Savannah River Site: stereo vision, LIDAR, flash LIDAR, and Structure from Motion (SfM). Stereo vision is the least appropriate technique for the solids mapping application. Although the equipment cost is low and repackaging would be fairly simple, the algorithms to create a 3D image from stereo vision would require significant further development and may not eve… more
Date: August 31, 2010
Creator: Marzolf, A. & Folsom, M.
Partner: UNT Libraries Government Documents Department
open access

A 3-dimensional theory of free electron lasers

Description: In this paper, we present an analytical three-dimensional theory of free electron lasers. Under several assumptions, we arrive at an integral equation similar to earlier work carried out by Ching, Kim and Xie, but using a formulation better suited for the initial value problem of Coherent Electron Cooling. We use this model in later papers to obtain analytical results for gain guiding, as well as to develop a complete model of Coherent Electron Cooling.
Date: August 23, 2010
Creator: Webb, S. D.; Wang, G. & Litvinenko, V. N.
Partner: UNT Libraries Government Documents Department

[3 Levels of Interactions presentation at APAEC 2011]

Description: Photograph of a presentation "3 Levels of Interactions" at APAEC 2011, held by UNT Special Collections. The image shows a room filled with people sitting down, a presenter can be seen at the front of the room near the top right. On the top left a projector screen can be seen, with it containing a chart titled "3 Levels of Interactions" with two columns following it. APAEC stands for Asian Pacific American Empowerment Conference, an annual conference that happens every year at UNT.
Date: April 20, 2011
Partner: UNT Libraries Special Collections
open access

A 3% Measurement of the Beam Normal Single Spin Asymmetry in Forward Angle Elastic Electron-Proton Scattering using the Qweak Setup

Description: The beam normal single spin asymmetry generated in the scattering of transversely polarized electrons from unpolarized nucleons is an observable of the imaginary part of the two-photon exchange process. Moreover, it is a potential source of false asymmetry in parity violating electron scattering experiments. The Q{sub weak} experiment uses parity violating electron scattering to make a direct measurement of the weak charge of the proton. The targeted 4% measurement of the weak charge of the pro… more
Date: August 1, 2013
Creator: Waidyawansa, Dinayadura Buddhini
Partner: UNT Libraries Government Documents Department
open access

A 3 TeV Muon Collider Lattice Design

Description: A new lattice for 3 TeV c.o.m. energy with {beta}* = 5mm was developed which follows the basic concept of the earlier 1.5 TeV design but uses quad triplets for the final focus in order to keep the maximum magnet strength and aperture close to those in 1.5 TeV case. Another difference is employment of combined-function magnets with the goal to lower heat deposition in magnet cold mass and to eliminate bending field free regions which produce 'hot spots' of neutrino radiation that can be an issue… more
Date: May 1, 2012
Creator: Alexahin, Y. & Gianfelice-Wendt, E.
Partner: UNT Libraries Government Documents Department

[3 Wild Stallions outside of the second LSRFA pit-stop]

Description: Photograph of three of the Wild Stallions team members at the second LSRFA pit-stop. They are wearing matching red, orange, and yellow jerseys with flames at the bottom and "Wild Stallions" across the chest. They are also wearing red accessories including a feather boa on their helmets, red butterfly masks, and orange zipties on top of their helmets. One has the number 38 on her helmet.
Date: September 24, 2011
Partner: UNT Libraries Special Collections
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