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Optimized nanoporous materials. (open access)

Optimized nanoporous materials.

Nanoporous materials have maximum practical surface areas for electrical charge storage; every point in an electrode is within a few atoms of an interface at which charge can be stored. Metal-electrolyte interfaces make best use of surface area in porous materials. However, ion transport through long, narrow pores is slow. We seek to understand and optimize the tradeoff between capacity and transport. Modeling and measurements of nanoporous gold electrodes has allowed us to determine design principles, including the fact that these materials can deplete salt from the electrolyte, increasing resistance. We have developed fabrication techniques to demonstrate architectures inspired by these principles that may overcome identified obstacles. A key concept is that electrodes should be as close together as possible; this is likely to involve an interpenetrating pore structure. However, this may prove extremely challenging to fabricate at the finest scales; a hierarchically porous structure can be a worthy compromise.
Date: September 1, 2009
Creator: Braun, Paul V. (University of Illinois at Urbana-Champaign, Urbana, IL); Langham, Mary Elizabeth; Jacobs, Benjamin W.; Ong, Markus D.; Narayan, Roger J. (North Carolina State University, Raleigh, NC); Pierson, Bonnie E. (North Carolina State University, Raleigh, NC) et al.
Object Type: Report
System: The UNT Digital Library
NSLS 2009 Activity Report (open access)

NSLS 2009 Activity Report

2009 was an incredibly exciting year for light sources at Brookhaven. The National Synchrotron Light Source (NSLS) hosted more than 2,200 visiting researchers, who, along with the about 50 members of our scientific staff, produced a total of 957 publications - about 20 percent of which appeared in premier journals. Covering topics ranging from Alzheimer's disease detection to ethanol-powered fuel cells, a sampling of these findings can be found in this Activity Report. We've also seen the resurfacing of some of our long-time users hard work. I was very proud to hear that two of the three recipients of the 2009 Nobel Prize in Chemistry have ties to the NSLS. Venki Ramakrishnan, a former employee in Brookhaven's biology department and long-time user of the NSLS, now at Cambridge University, and Thomas A. Steitz of Yale University, also a long-time NSLS user, shared the prize with Ada E. Yonath of the Weizmann Institute of Science for their work on the structure and function of the ribosome. In the late 1990s, Ramakrishnan and Steitz used protein crystallography at the NSLS to gather atomic-level images of two ribosome subunits: 30S (Ramakrishnan) and 50S (Steitz). Both laureates solved the high-resolution structures for these subunits …
Date: May 1, 2009
Creator: K., Nasta & R., Mona
Object Type: Report
System: The UNT Digital Library
National Synchrotron Light Source 2008 Activity Report (open access)

National Synchrotron Light Source 2008 Activity Report

Funded by the U.S. Department of Energy's Office of Basic Energy Sciences, the National Synchrotron Light Source (NSLS) is a national user facility that operates two electron storage rings: X-Ray (2.8 GeV, 300 mA) and Vacuum Ultraviolet (VUV) (800 mev, 1.0A). These two rings provide intense light spanning the electromagnetic spectrum -- from very long infrared rays to ultraviolet light and super-short x-rays -- to analyze very small or highly dilute samples. The properties of this light, and the specially designed experimental stations, called beamlines, allow scientists in many diverse disciplines of research to perform experiments not possible at their own laboratories. Each year, about 2,200 scientists from more than 400 universities and companies use the NSLS for research in such diverse fields as biology, physics, chemistry, geology, medicine, and environmental and materials sciences. For example, researchers have used the NSLS to examine the minute details of computer chips, decipher the structures of viruses, probe the density of bone, determine the chemical composition of moon rocks, and reveal countless other mysteries of science. The facility has 65 operating beamlines, with 51 beamlines on the X-Ray Ring and 14 beamlines on the VUV-Infrared Ring. It runs seven days a week, 24 …
Date: May 1, 2009
Creator: Nasta,K.
Object Type: Report
System: The UNT Digital Library
Archer County News (Archer City, Tex.), No. 47, Ed. 1 Thursday, November 19, 2009 (open access)

Archer County News (Archer City, Tex.), No. 47, Ed. 1 Thursday, November 19, 2009

Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date: November 19, 2009
Creator: Lewis, Shelley
Object Type: Newspaper
System: The Portal to Texas History
Alumni J-TAC, Winter 2009 (open access)

Alumni J-TAC, Winter 2009

Alumni magazine of Tarleton State University providing information on events at the school and news about university students, staff, and alumni.
Date: Winter 2009
Creator: Tarleton State University
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 114, No. 23, Ed. 1 Wednesday, June 10, 2009 (open access)

The Clifton Record (Clifton, Tex.), Vol. 114, No. 23, Ed. 1 Wednesday, June 10, 2009

Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: June 10, 2009
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
Wind Powering America FY08 Activities Summary (Book) (open access)

Wind Powering America FY08 Activities Summary (Book)

The Wind Powering America FY08 Activities Summary reflects the accomplishments of state Wind Working Groups, WPA programs at the National Renewable Energy Laboratory, and partner organizations.
Date: February 1, 2009
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Collin Chronicles, Volume 29, Number 3 & 4, 2008/2009 (open access)

Collin Chronicles, Volume 29, Number 3 & 4, 2008/2009

The society solicits unpublished Collin County related material. Emphasis is placed on source material, such as: Bible records, Church and Lodge records, Cemetery and Funeral Home records, Military records, Newspaper clippings, obituaries, old letters, maps and diaries, school, tax, voter and jury lists.
Date: 2009
Creator: Collin County Genealogical Society
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Use of Dual Frequency Identification Sonar to Determine Adult Chinook Salmon (Oncorhynchus tshawytscha) Escapement in the Secesh River, Idaho ; Annual Report, January 2008 – December 2008. (open access)

Use of Dual Frequency Identification Sonar to Determine Adult Chinook Salmon (Oncorhynchus tshawytscha) Escapement in the Secesh River, Idaho ; Annual Report, January 2008 – December 2008.

Chinook salmon in the Snake River basin were listed as threatened under the Endangered Species Act in 1992 (NMFS 1992). The Secesh River represents the only stream in the Snake River basin where natural origin (wild) salmon escapement monitoring occurs at the population level, absent a supplementation program. As such the Secesh River has been identified as a long term salmon escapement and productivity monitoring site by the Nez Perce Tribe Department of Fisheries Resources Management. Salmon managers will use this data for effective population management and evaluation of the effect of conservation actions on a natural origin salmon population. The Secesh River also acts as a reference stream for supplementation program comparison. Dual frequency identification sonar (DIDSON) was used to determine adult spring and summer Chinook salmon escapement in the Secesh River in 2008. DIDSON technology was selected because it provided a non-invasive method for escapement monitoring that avoided listed species trapping and handling incidental mortality, and fish impedance related concerns. The DIDSON monitoring site was operated continuously from June 13 to September 14. The first salmon passage was observed on July 3. DIDSON site total estimated salmon escapement, natural and hatchery fish, was 888 fish {+-} 65 fish …
Date: June 26, 2009
Creator: Kucera, Paul A.
Object Type: Report
System: The UNT Digital Library
The Mercedes Enterprise (Mercedes, Tex.), Vol. 101, No. 52, Ed. 1 Wednesday, December 30, 2009 (open access)

The Mercedes Enterprise (Mercedes, Tex.), Vol. 101, No. 52, Ed. 1 Wednesday, December 30, 2009

Weekly newspaper from Mercedes, Texas that includes local, state, and national news along with advertising.
Date: December 30, 2009
Creator: Martinez, Clarissa
Object Type: Newspaper
System: The Portal to Texas History
The Wylie News (Wylie, Tex.), Vol. 62, No. 1, Ed. 1 Wednesday, May 20, 2009 (open access)

The Wylie News (Wylie, Tex.), Vol. 62, No. 1, Ed. 1 Wednesday, May 20, 2009

Weekly newspaper from Wylie, Texas that includes local, state and national news along with advertising.
Date: May 20, 2009
Creator: Engbrock, Chad B.
Object Type: Newspaper
System: The Portal to Texas History
Cooper Review (Cooper, Tex.), Vol. 129, No. 30, Ed. 1 Thursday, July 23, 2009 (open access)

Cooper Review (Cooper, Tex.), Vol. 129, No. 30, Ed. 1 Thursday, July 23, 2009

Weekly newspaper from Cooper, Texas that includes local, state, and national news along with advertising.
Date: July 23, 2009
Creator: Palmer, Roger
Object Type: Newspaper
System: The Portal to Texas History
The Oklahoma Daily (Norman, Okla.), Vol. 94, No. 104, Ed. 1 Thursday, February 26, 2009 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 94, No. 104, Ed. 1 Thursday, February 26, 2009

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: February 26, 2009
Creator: Simons, Meredith
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Wynnewood Gazette (Wynnewood, Okla.), Vol. 107, No. 27, Ed. 1 Thursday, October 1, 2009 (open access)

The Wynnewood Gazette (Wynnewood, Okla.), Vol. 107, No. 27, Ed. 1 Thursday, October 1, 2009

Weekly newspaper from Wynnewood, Oklahoma that includes local, state, and national news along with advertising.
Date: October 1, 2009
Creator: unknown
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 111, No. 279, Ed. 1 Tuesday, August 4, 2009 (open access)

The Altus Times (Altus, Okla.), Vol. 111, No. 279, Ed. 1 Tuesday, August 4, 2009

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: August 4, 2009
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
Sweetwater Reporter (Sweetwater, Tex.), Vol. 112, No. 31, Ed. 1 Sunday, December 20, 2009 (open access)

Sweetwater Reporter (Sweetwater, Tex.), Vol. 112, No. 31, Ed. 1 Sunday, December 20, 2009

Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date: December 20, 2009
Creator: Rodriguez, Tatiana
Object Type: Newspaper
System: The Portal to Texas History
South Texas Catholic (Corpus Christi, Tex.), Vol. 44, No. 7, Ed. 1 Friday, April 3, 2009 (open access)

South Texas Catholic (Corpus Christi, Tex.), Vol. 44, No. 7, Ed. 1 Friday, April 3, 2009

Semi-monthly newspaper from Corpus Christi, Texas published by the Diocese of Corpus Christi that includes news of interest to Diocese members along with advertising.
Date: April 3, 2009
Creator: Beaton, Paula J.
Object Type: Newspaper
System: The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 114, No. 41, Ed. 1 Wednesday, October 14, 2009 (open access)

The Clifton Record (Clifton, Tex.), Vol. 114, No. 41, Ed. 1 Wednesday, October 14, 2009

Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: October 14, 2009
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
The Dublin Citizen (Dublin, Tex.), Vol. 19, No. 35, Ed. 1 Thursday, April 30, 2009 (open access)

The Dublin Citizen (Dublin, Tex.), Vol. 19, No. 35, Ed. 1 Thursday, April 30, 2009

Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date: April 30, 2009
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Oklahoma Eagle (Tulsa, Okla.), Vol. 89, No. 48, Ed. 1 Friday, November 27, 2009 (open access)

The Oklahoma Eagle (Tulsa, Okla.), Vol. 89, No. 48, Ed. 1 Friday, November 27, 2009

Weekly newspaper from Tulsa, Oklahoma that includes local, state, and national news along with advertising.
Date: November 27, 2009
Creator: unknown
Object Type: Newspaper
System: The Gateway to Oklahoma History
Interweaving History: The Texas Textile Mill and McKinney, Texas, 1903-1968. (open access)

Interweaving History: The Texas Textile Mill and McKinney, Texas, 1903-1968.

Texas textile mills comprise an untold part of the modern South. The bulk of Texas mills were built between 1890 and 1925, a compressed period of expansion in contrast to the longer developmental pattern of mills in the rest of the United States. This compression meant that Texas mill owners benefited from knowledge gained from mill expansion elsewhere, and owners ran their mills along the same lines as the dominant southeastern model. Owners veered from the established pattern when conditions warranted. This case study focuses on three mills in Texas that operated both independently and as a corporation for a total of sixty years. One mill in McKinney dominated the economy of a small town and serves as the primary focus of this paper. A second mill in Waco served a diversified economy in the center of the state; and the third mill, built in Dallas was concentrated in a major city in a highly competitive job market. All three of these mills will illuminate the single greatest difference between Texas mills and mills elsewhere, the composition of the labor force. Women did not dominate the mill labor force in Texas nor did children, except in limited cases, make-up a …
Date: August 2009
Creator: Kilgore, Deborah Katheryn
Object Type: Thesis or Dissertation
System: The UNT Digital Library

JAC: A Journal of Composition Theory, Volume 29, Numbers 1 & 2, 2009

JAC: A Journal of Composition Theory contains a collection of papers regarding writing and rhetoric: "The JAC is a forum for theory, research and pedagogy regarding (1) those writing courses beyond the freshman courses, excluding technical and creative writing, (2) writing in courses which are not themselves writing courses, particularly in the liberal arts and sciences, and (3) work in theory, research or pedagogy which is advanced or progressive and will shed light on the field as a whole while at the same time providing insights for advanced composition" (volume 1, number 1). This issue includes the keynote articles from the I. Watson Conference.
Date: 2009
Creator: Association of Teachers of Advanced Composition (U.S.)
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
Catalog of the University of North Texas, 2009-2010, Graduate (open access)

Catalog of the University of North Texas, 2009-2010, Graduate

The UNT Graduate Bulletin includes information about class offerings as well as "policies, regulations, procedures and fees in effect at the time [the] publication went to press" (p. 1). Campus maps are on pages 518 and 520; index starts on page 490.
Date: July 2009
Creator: University of North Texas
Object Type: Book
System: The UNT Digital Library
Catalog of the University of North Texas, 2009-2010, Undergraduate (open access)

Catalog of the University of North Texas, 2009-2010, Undergraduate

The UNT Undergraduate Bulletin includes information about class offerings as well as "policies, regulations, procedures and fees in effect at the time [the] publication went to press" (p. 1). Campus maps are on pages 582 and 584; index starts on page 552.
Date: July 2009
Creator: University of North Texas
Object Type: Book
System: The UNT Digital Library