Degree Department

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Mechanism of strain release in carbon nanotubes (open access)

Mechanism of strain release in carbon nanotubes

Article on the mechanism of strain release in carbon nanotubes.
Date: February 15, 1998
Creator: Buongiorno Nardelli, Marco; Yakobson, Boris I. & Bernholc, Jerry
Object Type: Article
System: The UNT Digital Library

[Photograph 2012.201.B0125.0409]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "The ill-fated "space ride" at Frontier City."
Date: May 15, 1998
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0116.0568]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The John Marshall defense couldn't keep Burks from hitting 6 3-point shots."
Date: December 15, 1998
Creator: Hellstern, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History
Pyrite oxidation in saturated and Unsaturated Porous Media Flow: AComparison of alternative mathematical modeling approaches (open access)

Pyrite oxidation in saturated and Unsaturated Porous Media Flow: AComparison of alternative mathematical modeling approaches

Pyrite (FeS{sub 2}) is one of the most common naturally occurring minerals that is present in many subsurface environments. It plays an important role in the genesis of enriched ore deposits through weathering reactions, is the most abundant sulfide mineral in many mine tailings, and is the primary source of acid drainage from mines and waste rock piles. The pyrite oxidation reaction serves as a prototype for oxidative weathering processes with broad significance for geoscientific, engineering, and environmental applications. Mathematical modeling of these processes is extremely challenging because aqueous concentrations of key species vary over an enormous range, oxygen inventory and supply are typically small in comparison to pyrite inventory, and chemical reactions are complex, involving kinetic control and microbial catalysis. We present the mathematical formulation of a general multi-phase advective-diffusive reactive transport model for redox processes. Two alternative implementations were made in the TOUGHREACT and TOUGH2-CHEM simulation codes which use sequential iteration and simultaneous solution, respectively. The simulators are applied to reactive consumption of pyrite in (1) saturated flow of oxidizing water, and (2) saturated-unsaturated flow in which oxygen transport occurs in both aqueous and gas phases. Geochemical evolutions predicted from different process models are compared, and issues of …
Date: February 15, 1998
Creator: Xu, Tianfu; White, Stephen P. & Pruess, Karsten
Object Type: Report
System: The UNT Digital Library
Numerical experiments on the probability of seepage intounderground openings in heterogeneous fractured rock (open access)

Numerical experiments on the probability of seepage intounderground openings in heterogeneous fractured rock

An important issue for the performance of underground nuclear waste repositories is the rate of seepage into the waste emplacement drifts. A prediction of this rate is particularly complicated for the potential repository site at Yucca Mountain, Nevada, because it is located in thick, unsaturated, fractured tuff formations. Underground opening in unsaturated media might act as capillary barriers, diverting water around them. In the present work, they study the potential rate of seepage into drifts as a function of the percolation flux at Yucca Mountain, based on a stochastic model of the fractured rock mass in the drift vicinity. A variety of flow scenarios are considered, assuming present-day and possible future climate conditions. They show that the heterogeneity in the flow domain is a key factor controlling seepage rates, since it causes channelized flow and local ponding in the unsaturated flow field.
Date: April 15, 1998
Creator: Birkholzer, J.; Li, G.; Tsang, C. F. & Tsang, Y.
Object Type: Report
System: The UNT Digital Library
The Canadian Record (Canadian, Tex.), Vol. 108, No. 3, Ed. 1 Thursday, January 15, 1998 (open access)

The Canadian Record (Canadian, Tex.), Vol. 108, No. 3, Ed. 1 Thursday, January 15, 1998

Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date: January 15, 1998
Creator: Ezzell, Nancy & Brown, Laurie Ezzell
Object Type: Newspaper
System: The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 108, No. 42, Ed. 1 Thursday, October 15, 1998 (open access)

The Canadian Record (Canadian, Tex.), Vol. 108, No. 42, Ed. 1 Thursday, October 15, 1998

Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date: October 15, 1998
Creator: Ezzell, Nancy & Brown, Laurie Ezzell
Object Type: Newspaper
System: The Portal to Texas History
[News Clip: AA Crandall] captions transcript

[News Clip: AA Crandall]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: April 15, 1998, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Williams] captions transcript

[News Clip: Williams]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: September 15, 1998, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Jasper Vigil] captions transcript

[News Clip: Jasper Vigil]

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 15, 1998, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
Mannford Eagle (Mannford, Okla.), Vol. 17, No. 7, Ed. 1 Wednesday, April 15, 1998 (open access)

Mannford Eagle (Mannford, Okla.), Vol. 17, No. 7, Ed. 1 Wednesday, April 15, 1998

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date: April 15, 1998
Creator: Retherford, Bill R.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Mannford Eagle (Mannford, Okla.), Vol. 17, No. 20, Ed. 1 Wednesday, July 15, 1998 (open access)

Mannford Eagle (Mannford, Okla.), Vol. 17, No. 20, Ed. 1 Wednesday, July 15, 1998

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date: July 15, 1998
Creator: Retherford, Bill R.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Mannford Star (Mannford, Okla.), Vol. 3, No. 45, Ed. 1 Wednesday, July 15, 1998 (open access)

The Mannford Star (Mannford, Okla.), Vol. 3, No. 45, Ed. 1 Wednesday, July 15, 1998

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date: July 15, 1998
Creator: unknown
Object Type: Newspaper
System: The Gateway to Oklahoma History
Cherokeean/Herald (Rusk, Tex.), Vol. 149, No. 34, Ed. 1 Thursday, October 15, 1998 (open access)

Cherokeean/Herald (Rusk, Tex.), Vol. 149, No. 34, Ed. 1 Thursday, October 15, 1998

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date: October 15, 1998
Creator: Whitehead, Marie
Object Type: Newspaper
System: The Portal to Texas History
Cherokeean/Herald (Rusk, Tex.), Vol. 149, No. 51, Ed. 1 Thursday, January 15, 1998 (open access)

Cherokeean/Herald (Rusk, Tex.), Vol. 149, No. 51, Ed. 1 Thursday, January 15, 1998

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date: January 15, 1998
Creator: Whitehead, Marie
Object Type: Newspaper
System: The Portal to Texas History
Texas Attorney General Opinion: DM-479 (open access)

Texas Attorney General Opinion: DM-479

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification: Whether a corporation that intends to operate as a cooperative may incorporate under the Texas Non-Profit Act or must the corporation incorporated under the Cooperative Association Act (RQ-966)
Date: June 15, 1998
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
LBR deactivation information exchange (open access)

LBR deactivation information exchange

This report contains vugraphs of presentations given at the meeting. The topics covered include the following: FFTF Deactivation Strategy; Sodium Drain and Disposition; Sodium Processing; and Fuel Storage and Disposition.
Date: May 15, 1998
Creator: Guttenberg, S.
Object Type: Article
System: The UNT Digital Library
Effects on Occupants of Enhanced Particle Filtration in a non-problem office environment: A Double-Blind Crossover Intervention Study (open access)

Effects on Occupants of Enhanced Particle Filtration in a non-problem office environment: A Double-Blind Crossover Intervention Study

Workers in indoor environments often complain of symptoms, such as eye and nose irritation, headache, and fatigue, which improve away from work. Exposures causing such complaints, sometimes referred to as sick building syndrome, generally have not been identified. Evidence suggests these worker symptoms are related to chemical, microbiological, physical, and psychosocial exposures not well characterized by current methods. Most research in this area has involved cross-sectional studies, which are limited in their abilities to show causal connections. Experimental studies have also been conducted which, by changing one factor at a time to isolate its effects, can demonstrate benefits of an environmental intervention even before exposures or mechanisms are understood. This study was prompted by evidence that particulate contaminants may be related to acute occupant symptoms and discomfort. The objective was to assess, with a double-blind, double crossover intervention design, whether improved removal of small airborne particles by enhanced central filtration would reduce symptoms and discomfort.
Date: June 15, 1998
Creator: Mendell, M. J.; Fisk, W. J.; Petersen, M.; Hines, C. J.; Faulkner, D.; Deddens, J. A. et al.
Object Type: Article
System: The UNT Digital Library
National Stonewall Democratic Federation (open access)

National Stonewall Democratic Federation

Letter from board officers to "member" on December 15, 1998 thanking them for their support. Included is a letter to Mr. President from Daniel McGlinchey regarding Stonewall's efforts to elect Democrats who support equal rights for gay and lesbian Americans. Also, two line graphs showing the percentage of Democrat Pro-Gay Vote compare to Republican Pro-Gay Vote in the US. House of Representatives and the U.S. Senate.
Date: December 15, 1998
Creator: unknown
Object Type: Letter
System: The UNT Digital Library
The Colony Courier (The Colony, Tex.), Vol. [1], No. [33], Ed. 1 Wednesday, July 15, 1998 (open access)

The Colony Courier (The Colony, Tex.), Vol. [1], No. [33], Ed. 1 Wednesday, July 15, 1998

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: July 15, 1998
Creator: Sorter, Dave
Object Type: Newspaper
System: The Portal to Texas History
The Colony Courier (The Colony, Tex.), Vol. 1, No. 10, Ed. 1 Thursday, January 15, 1998 (open access)

The Colony Courier (The Colony, Tex.), Vol. 1, No. 10, Ed. 1 Thursday, January 15, 1998

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: January 15, 1998
Creator: Sorter, Dave
Object Type: Newspaper
System: The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 122, No. 33, Ed. 1 Thursday, January 15, 1998 (open access)

The Albany News (Albany, Tex.), Vol. 122, No. 33, Ed. 1 Thursday, January 15, 1998

Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date: January 15, 1998
Creator: Lucas, Donnie A.
Object Type: Newspaper
System: The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 123, No. 20, Ed. 1 Thursday, October 15, 1998 (open access)

The Albany News (Albany, Tex.), Vol. 123, No. 20, Ed. 1 Thursday, October 15, 1998

Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date: October 15, 1998
Creator: Lucas, Donnie A.
Object Type: Newspaper
System: The Portal to Texas History
High-Level Waste Feed Data Quality Objectives (open access)

High-Level Waste Feed Data Quality Objectives

There is no discription for this report at this time.
Date: October 15, 1998
Creator: Wiemers, Karyn D.; Miller, Michael C. & Patello, Gertrude K.
Object Type: Report
System: The UNT Digital Library