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Relativistic Heavy Ion Collider spin flipper commissioning plan (open access)

Relativistic Heavy Ion Collider spin flipper commissioning plan

The commissioning of the RHIC spin flipper in the RHIC Blue ring during the RHIC polarized proton run in 2009 showed the detrimental effects of global vertical coherent betatron oscillation induced by the 2-AC dipole plus 4-DC dipole configuration. This global orbital coherent oscillation of the RHIC beam in the Blue ring in the presence of collision modulated the beam-beam interaction between the two RHIC beams and affected Yellow beam lifetime. The experimental data at injection with different spin tunes by changing the snake current also demonstrated that it was not possible to induce a single isolated spin resonance with the global vertical coherent betatron oscillation excited by the two AC dipoles. Hence, RHIC spin flipper was re-designed to eliminate the coherent vertical betatron oscillation outside the spin flipper by adding three additional AC dipoles. This paper presents the experimental results as well as the new design.
Date: September 27, 2010
Creator: Bai, M.; Dawson, C.; Makdisi, Y.; Meng, W.; Meot, F.; Oddo, P. et al.
Object Type: Article
System: The UNT Digital Library
Guidance for Human-system Interfaces to Automatic Systems (open access)

Guidance for Human-system Interfaces to Automatic Systems

Automation is ubiquitous in modern complex systems, and commercial nuclear- power plants are no exception. Automation is applied to a wide range of functions, including monitoring and detection, situation assessment, response planning, and response implementation. Automation has become a 'team player' supporting personnel in nearly all aspects of system operation. In light of its increasing use and importance in new- and future-plants, guidance is needed to conduct safety reviews of the operator's interface with automation. The objective of this research was to develop such guidance. We first characterized the important HFE aspects of automation, including six dimensions: Levels, functions, processes, modes, flexibility, and reliability. Next, we reviewed literature on the effects of all of these aspects of automation on human performance, and on the design of human-system interfaces (HSIs). Then, we used this technical basis established from the literature to identify general principles for human-automation interaction and to develop review guidelines. The guidelines consist of the following seven topics: Automation displays, interaction and control, automation modes, automation levels, adaptive automation, error tolerance and failure management, and HSI integration.
Date: September 27, 2010
Creator: O'Hara, J. M.; Higgins, J.; Fleger, Stephen & Barnes, Valerie
Object Type: Article
System: The UNT Digital Library

UNT Digital Library Storage Architectures for Digital Collections

This presentation discusses the University of North Texas (UNT) Digital Library Program and possible solutions for sudden growth in digital content.
Date: September 27, 2010
Creator: Phillips, Mark Edward
Object Type: Presentation
System: The UNT Digital Library
[Letter from Richard J. Smith to Sharron Davis, Oct, 10, 2010] (open access)

[Letter from Richard J. Smith to Sharron Davis, Oct, 10, 2010]

Letter from Richard J. Smith to Sharon Davis discussing his time in the military and pictures he has worked on for the museum.
Date: 2010-09-27/2010-10-10
Creator: Smith, Richard J.
Object Type: Letter
System: The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, September 27, 2010 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Monday, September 27, 2010

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: September 27, 2010
Creator: Wray, Kelly
Object Type: Newspaper
System: The Gateway to Oklahoma History

Graduate Artist Certificate Recital: 2010-09-27 – Reuben Allred, piano

Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Graduate Artist Certificate in Music Performance.
Date: September 27, 2010
Creator: Allred, Reuben
Object Type: Sound
System: The UNT Digital Library
Federal Register, Volume 75, Number 186, September 27, 2010, Pages 59057-59604 (open access)

Federal Register, Volume 75, Number 186, September 27, 2010, Pages 59057-59604

Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date: September 27, 2010
Creator: United States. Office of the Federal Register.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
DART inducted into Hispanic Chamber's Million Dollar Club (open access)

DART inducted into Hispanic Chamber's Million Dollar Club

News release about DART being recognized the United States Hispanic Chamber of Commerce for its commitment to utilizing Hispanic businesses.
Date: September 27, 2010
Creator: Lyons, Morgan & Ball, Mark
Object Type: Text
System: The Portal to Texas History
The Oklahoma Daily (Norman, Okla.), Vol. 96, No. 28, Ed. 1 Monday, September 27, 2010 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 96, No. 28, Ed. 1 Monday, September 27, 2010

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: September 27, 2010
Creator: Moriak, Meredith
Object Type: Newspaper
System: The Gateway to Oklahoma History
Increasing access to area shopping goal of new DART program (open access)

Increasing access to area shopping goal of new DART program

News release about "Shopper Dropper," a DART pilot program program in which disabled and elderly passengers may schedule a paratransit vehicle to pick them up at their home and take them to one of four local shopping centers.
Date: September 27, 2010
Creator: Lyons, Morgan & Ball, Mark
Object Type: Text
System: The Portal to Texas History
New TRE fares start Oct. 1; weekday service changes, Oct. 4 (open access)

New TRE fares start Oct. 1; weekday service changes, Oct. 4

News release about upcoming changes in TRE fares and service schedules.
Date: September 27, 2010
Creator: Lyons, Morgan; Ball, Mark & Hunter, Joan
Object Type: Text
System: The Portal to Texas History