Access
Partner
Oklahoma Historical Society
193
UT San Antonio Libraries Special Collections
193
UNT Libraries Special Collections
104
UNT Libraries Government Documents Department
89
Sterling Municipal Library
11
Rice University Woodson Research Center
8
Alvin Community College
6
Carl Albert Congressional Research and Studies Center
5
San Antonio Public Library
4
Abilene Christian University Library
3
59 More
Collection
Texas Cultures Online
195
Institute of Texan Cultures Texas Folklife Festival Collection
192
Oklahoma Publishing Company Photography Collection
125
Texas Digital Newspaper Program
97
KXAS-NBC 5 News Collection
85
Office of Scientific & Technical Information Technical Reports
77
Oklahoma Digital Newspaper Program
61
Tocker Foundation Grant
46
Jim Argo Collection
13
Chickasha Newspaper Collection
12
93 More
Degree Department
States
Year
Month
Day
Language
700 Matching Results
Results open in a new window/tab.
Ground penetrating radar coal measurements demonstration at the U.S. Bureau of Mines Research Center, Pittsburgh, Pennsylvania. Final report
In situ and near real-time measurements of coal seam thickness have been identified by industry as a highly desirable component of robotic mining systems. With it, a continuous mining machine can be guided close to the varying boundary of the seam while the cutting operation is underway. This provides the mining operation the ability to leave behind the high-sulfur, high-particulate coal which is concentrated near the seam boundary. The result is near total recovery of high quality coal resources, an increase in mining efficiency, and opportunities for improved safety through reduction in personnel in the most hazardous coal cutting areas. In situ, real-time coal seam measurements using the Special Technologies Laboratory (STL) ground penetrating radar (GPR) technology were shown feasible by a demonstration in a Utah coal mine on April 21, 1994. This report describes the October 18, 1994 in situ GPR measurements of coal seam thickness at the US Bureau of Mines (USBM) robotic mining testing laboratory. In this report, an overview of the measurements at the USBM Laboratory is given. It is followed by a description of the technical aspects of the STL frequency modulated-continuous wave (FM-CW) GPR system. Section 4 provides a detailed description of the USBM …
Date:
January 4, 1994
Creator:
Gardner, D.; Guerrier, J. & Martinez, M.
Object Type:
Report
System:
The UNT Digital Library
The Harper Herald (Harper, Tex.), Vol. 67, No. 98, Ed. 1 Tuesday, January 4, 1994
Weekly newspaper from Harper, Texas that includes local, state, and national news along with advertising.
Date:
January 4, 1994
Creator:
Bishop, Karen
Object Type:
Newspaper
System:
The Portal to Texas History
Low frequency ultrasonic nondestructive inspection of aluminum/adhesive fuselage lap splices
This thesis is a collection of research efforts in ultrasonics, conducted at the Center for Aviation Systems Reliability located at Iowa State University, as part of the Federal Aviation Administration`s ``Aging Aircraft Program.`` The research was directed toward the development of an ultrasonic prototype to inspect the aluminum/adhesive fuselage lap splices found on 1970`s vintage Boeing passenger aircraft. The ultrasonic prototype consists of a normal incidence, low frequency inspection technique, and a scanning adapter that allows focused immersion transducers to be operated in a direct contact manner in any inspection orientation, including upside-down. The inspection technique uses a computer-controlled data acquisition system to produce a C-scan image of a radio frequency (RF) waveform created by a low frequency, broadband, focused beam transducer, driven with a spike voltage pulser. C-scans produced by this technique are color representations of the received signal`s peak-to-peak amplitude (voltage) taken over an (x, y) grid. Low frequency, in this context, refers to a wavelength that is greater than the lap splice`s layer thicknesses. With the low frequency technique, interface echoes of the lap splice are not resolved and gating of the signal is unnecessary; this in itself makes the technique simple to implement and saves considerable …
Date:
January 4, 1994
Creator:
Patton, T.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
[News Clip: AIDS ads]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5 P.M.
Date:
January 4, 1994
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Anderson School]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 4, 1994, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Anderson School]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 4, 1994, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Arlington smoking]
Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date:
January 4, 1994, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Cheerleaders]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 4, 1994, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Cowboy Tickets]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 4, 1994, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Tibetans]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 4, 1994, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Tibetans]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 4, 1994, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Ticket Sales]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 4, 1994, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 100, No. 277, Ed. 1 Tuesday, January 4, 1994
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 4, 1994
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0313B.0038]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Each and every one of you are capable of taking care of yourselves," martial arts expert Ruth Parker Jefferson told the half-dozen women and two men gathered before her at the Grand Center Club Fitness center."
Date:
January 4, 1994
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0313B.0039]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Above, martial arts expert Ruth Parker Jefferson teaches a recent self-defense class called WARS - Women's Awareness Response System."
Date:
January 4, 1994
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0931.0923]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Nichols Hills Elementary."
Date:
January 4, 1994
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0931.0924]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Nichols Hills Elementary."
Date:
January 4, 1994
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1089.0747]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Lindy Ritz - FAA"
Date:
January 4, 1994
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1148.0368]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "By Blanche M. Sawyer, City."
Date:
January 4, 1994
Creator:
Southerland, Paul B.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1160.0565]
Photograph used for a story in the Daily Oklahoman newspaper.
Date:
January 4, 1994
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1162.0837]
Photograph used for a story in the Daily Oklahoman newspaper.
Date:
January 4, 1994
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1355.0116]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Built as a boardinghouse 93 years ago, Noble House was rescued and restored by a corporation of history-minded Watonga citizens."
Date:
January 4, 1994
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 80, No. 97, Ed. 1 Tuesday, January 4, 1994
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 4, 1994
Creator:
Lake, Charles S.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Studies of high temperature ternary phases in mixed-metal-rich early transition metal sulfide and phosphide systems
Investigations of ternary mixed early transition metal-rich sulfide and phosphide systems resulted in the discovery of new structures and new phases. A new series of Zr and Hf - group V transition metal - sulfur K-phases was synthesized and crystallographically characterized. When the group V transition metal was Nb or Ta, the unit cell volume was larger than any previously reported K-phase. The presence of adventitious oxygen was determined in two K-phases through a combination of neutron scattering and X-ray diffraction experiments. A compound Hf{sub 10}Ta{sub 3}S{sub 3} was found to crystallize in a new-structure type similar to the known gamma brasses. This structure is unique in that it is the only reported {open_quotes}stuffed{close_quotes} gamma-brass type structure. The metal components, Hf and Ta, are larger in size and more electropositive than the metals found in normal gamma brasses (e.g. Cu and Zn) and because of the larger metallic radii, sulfur can be incorporated into the structure where it plays an integral role in stabilizing this phase relative to others. X-ray single-crystal, X-ray powder and neutron powder refinements were performed on this structure. A new structure was found in the ternary Nb-Zr-P system which has characteristics in common with many known …
Date:
January 4, 1994
Creator:
Marking, G. A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library