Resource Type
Partner
Oklahoma Historical Society
140
Sterling Municipal Library
35
Livingston Municipal Library
17
Swisher County Library
16
Sanger Public Library
15
UNT Libraries Government Documents Department
13
UNT Libraries
12
Comanche Public Library
10
The Old Jail Art Center
10
Nellie Pederson Civic Library
9
57 More
Collection
Country
States
Decade
Month
Day
Language
441 Matching Results
Results open in a new window/tab. Unexpected Results? Search the Catalog Instead.
Results:
1 - 24 of
441
next
Design of pulse stretching cell for a sodium guide star optical system
A pulse stretcher has been designed for the LLNL sodium guide star experiment to lower the laser flux and avoid saturation effects. The optical design, mechanical layout and wavefront error analysis are presented.
Date:
November 10, 1992
Creator:
Friedman, H. W.; Horton, J. A.; Kuklo, T. J. & Wong, N. J.
Object Type:
Article
System:
The UNT Digital Library
Californium-252: a remarkable versatile radioisotope
A product of the nuclear age, Californium-252 ({sup 252}Cf) has found many applications in medicine, scientific research, industry, and nuclear science education. Californium-252 is unique as a neutron source in that it provides a highly concentrated flux and extremely reliable neutron spectrum from a very small assembly. During the past 40 years, {sup 252}Cf has been applied with great success to cancer therapy, neutron radiography of objects ranging from flowers to entire aircraft, startup sources for nuclear reactors, fission activation for quality analysis of all commercial nuclear fuel, and many other beneficial uses, some of which are now ready for further growth. Californium-252 is produced in the High Flux Isotope Reactor (HFIR) and processed in the Radiochemical Engineering Development Center (REDC), both of which are located at the Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee. The REDC/HFIR facility is virtually the sole supplier of {sup 252}Cf in the western world and is the major supplier worldwide. Extensive exploitation of this product was made possible through the {sup 252}Cf Market Evaluation Program, sponsored by the United States Department of Energy (DOE) [then the Atomic Energy Commission (AEC) and later the Energy Research and Development Administration (ERDA)]. This program included …
Date:
October 10, 1995
Creator:
Osborne-Lee, I.W. & Alexander, C.W.
Object Type:
Report
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 104, No. 12, Ed. 1 Wednesday, February 10, 1999
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 10, 1999
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 101, No. 54, Ed. 1 Wednesday, July 10, 1996
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
July 10, 1996
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 104, No. 99, Ed. 1 Friday, December 10, 1999
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
December 10, 1999
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 98, No. 181, Ed. 1 Tuesday, September 10, 1991
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 10, 1991
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 104, No. 20, Ed. 1 Wednesday, March 10, 1999
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
March 10, 1999
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 98, No. 44, Ed. 1 Wednesday, November 10, 1993
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
November 10, 1993
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Bosque County Record Tribune (Clifton, Tex.), Vol. 95, No. 19, Ed. 1 Thursday, May 10, 1990
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
May 10, 1990
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Perry Daily Journal (Perry, Okla.), Vol. 102, No. 103, Ed. 1 Saturday, June 10, 1995
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 10, 1995
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 102, No. 282, Ed. 1 Wednesday, January 10, 1996
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 10, 1996
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 99, No. 103, Ed. 1 Wednesday, June 10, 1992
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 10, 1992
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 98, No. 155, Ed. 1 Saturday, August 10, 1991
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 10, 1991
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 99, No. 154, Ed. 1 Monday, August 10, 1992
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 10, 1992
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 101, No. 282, Ed. 1 Tuesday, January 10, 1995
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 10, 1995
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 102, No. 154, Ed. 1 Thursday, August 10, 1995
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 10, 1995
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 103, No. 29, Ed. 1 Friday, April 10, 1998
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
April 10, 1998
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Perry Daily Journal (Perry, Okla.), Vol. 102, No. 309, Ed. 1 Saturday, February 10, 1996
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 10, 1996
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 103, No. 102, Ed. 1 Monday, June 10, 1996
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 10, 1996
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 103, No. 154, Ed. 1 Saturday, August 10, 1996
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 10, 1996
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 103, No. 46, Ed. 1 Wednesday, June 10, 1998
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
June 10, 1998
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Slug flow model for infiltration into fractured porous media
A model for transient infiltration into a periodically fractured porous layer is presented. The fracture is treated as a permeable-walled slot and the moisture distribution is in the form of a slug being an advancing meniscus. The wicking of moisture from the fracture to the unsaturated porous matrix is a nonlinear diffusion process and is approximately by self-similar solutions. The resulting model is a nonlinear Volterra integral equation with a weakly singular kernel. Numerical analysis provides solutions over a wide range of the parameter space and reveals the asymptotic forms of the penetration of this slug in terms of dimensionless variables arising in the model. The numerical solutions corroborate asymptotic results given earlier by Nitao and Buscheck (1991), and by Martinez (1988). Some implications for the transport of liquid in fractured rock are discussed.
Date:
November 10, 1999
Creator:
Martinez, M.J.
Object Type:
Article
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 100, No. 19, Ed. 1 Wednesday, May 10, 1995
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
May 10, 1995
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Sanger Courier (Sanger, Tex.), Vol. 93, No. 29, Ed. 1 Thursday, June 10, 1993
Weekly newspaper from Sanger, Texas that includes local, state, and national news along with extensive advertising.
Date:
June 10, 1993
Creator:
Watson, J. P.
Object Type:
Newspaper
System:
The Portal to Texas History