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103 Matching Results
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Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses
From Significance and value of Analyses of Coal: "The analyses published in this report cover samples of coal collected in many different parts of the country with unusual care by experiences men, in such manner as to make them representative of extensive beds of coal."
Date:
1913
Creator:
Lord, N. W.
Object Type:
Report
System:
The UNT Digital Library
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples
From Introduction: "This volume contains the descriptions of the samples whose analyses are published in the preceding volume, Part I of this bulletin. The descriptions have been compiled from the notebooks of the persons who collected the samples, have been condensed from accounts given in published reports of the United States Geological Survey, or have furnished by the collection themselves. Inasmuch as the descriptions represent the work of many persons during a period of six years, and inasmuch as they were recorded under widely differing conditions, they necessarily vary in fullness detail."
Date:
1913
Creator:
Lord, N. W.
Object Type:
Report
System:
The UNT Digital Library
[Carolyn Scott in Boulder, Colorado]
Carolyn Street Scott in Boulder, Colorado.
Date:
1959
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
Cattle in a Field
Copy negative of a photograph of cattle grazing in a field. A water tower and houses are in the background.
Date:
unknown
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
[Charles Stasny Photo Sheet-8]
Page from scrapbook showing the travels of Charles Stasny during the war. The front top photo is a woman wearing sunglasses and a sleeveless top. The front bottom photo is a woman in a suit playing with the ears of a dog. The back top left photo is the men's dorms in the University of Colorado Boulder. The back bottom left photo is soldiers stood in a field. The back right photo is a portrait of Hugh M. Riggins, Jr. in his uniform, consisting of a white long-sleeved top, white pants, a black tie, and a sailor's hat. The photographs are mounted on a piece of black scrapbook paper.
Date:
unknown
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
Chemically Assisted in Situ Recovery of Oil Shale
The purpose of the research project was to investigate the feasibility of the chemically assisted in situ retort method for recovering shale oil from Colorado oil shale. The chemically assisted in situ procedure uses hydrogen chloride (HCl), steam (H{sub 2}O), and carbon dioxide (CO{sub 2}) at moderate pressure to recovery shale oil from Colorado oil shale at temperatures substantially lower than those required for the thermal decomposition of kerogen. The process had been previously examined under static, reaction-equilibrium conditions, and had been shown to achieve significant shale oil recoveries from powdered oil shale. The purpose of this research project was to determine if these results were applicable to a dynamic experiment, and achieve penetration into and recovery of shale oil from solid oil shale. Much was learned about how to perform these experiments. Corrosion, chemical stability, and temperature stability problems were discovered and overcome. Engineering and design problems were discovered and overcome. High recovery (90% of estimated Fischer Assay) was observed in one experiment. Significant recovery (30% of estimated Fischer Assay) was also observed in another experiment. Minor amounts of freed organics were observed in two more experiments. Penetration and breakthrough of solid cores was observed in six experiments.
Date:
December 31, 1993
Creator:
Ramierz, W. F.
Object Type:
Report
System:
The UNT Digital Library
Chemically Assisted in Situ Recovery of Oil Shale. [Quarterly Report], April 1, 1990--June 30, 1990
The objective of this work is to investigate, in the laboratory, the parameters associated with a chemically assisted in situ recovery procedure, using hydrogen chloride (HCI), carbon dioxide (CO{sub 2}), and steam (H{sub 2}O), to obtain-data useful to develop a process more economic than existing processes and to report all findings. The technical progress of the project is reported. The progress of the project is that experiment preparations are underway. Reactor design, process design, and experiment design have been completed. The laboratory to be used has required extensive clean-up, and is nearly ready. Safety considerations are underway. Finally, an initial literature search has revealed some important aspects that need to be considered.
Date:
December 31, 1990
Creator:
Ramirez, W. F.
Object Type:
Report
System:
The UNT Digital Library
Chemically Assisted in Situ Recovery of Oil Shale. [Quarterly] Report, April 1, 1993--June 30, 1993
The objective of this work is to investigate, in the laboratory, the parameters associated with a chemically assisted in situ recovery procedure, using hydrogen chloride (HCI), carbon dioxide (CO{sub 2}), and steam (H{sub 2}0), to obtain data useful to develop a process more economic than existing processes and to report all findings. The technical progress of the project is reported. The project status is that the progress is being made towards being able to run meaningful experiments.
Date:
September 1, 1993
Creator:
Ramirez, W. F.
Object Type:
Report
System:
The UNT Digital Library
Chemically Assisted in Situ Recovery of Oil Shale. [Quarterly Report], October 1, 1991--December 31, 1991
The objective of this work is to investigate, in the laboratory, the parameters associated with a chemically assisted in situ recovery procedure, using hydrogen chloride (HCI), carbon dioxide (CO{sub 2}), and steam (H{sub 2}O), to obtain data useful to develop a process more economic than existing processes and to report all findings. The technical progress of the project is reported. The project status is that the solutions to the problems discussed in the third quarter status, were found to function satisfactorily. Future needs have been considered, and appropriate equipment and instrumentation changes have been designed. Only one experiment was performed this quarter, with some improvement over the previous experiments. The increase in shale oil recovery followed directly from the changes discussed last quarter, but the improvement could have been larger with wider-spread implementation of the changes. Equipment was purchased to rectify the need, and will be installed shortly. Further, a minor change in the design was necessary to account for the brittleness of high temperature electrical resistance heating tapes. The focus of the work this quarter has been on the development of computer software to enable the use of on-line parameter identification, the design of the instrumentation necessary to adequately …
Date:
December 31, 1991
Creator:
Ramirez, W. F.
Object Type:
Report
System:
The UNT Digital Library
Chemically Assisted in Situ Recovery of Oil Shale. Technical Progress Report, April 1, 1991--June 30, 1991
The objective of this work is to investigate, in the laboratory, the parameters associated with a chemically assisted in situ recovery procedure, using hydrogen chloride (HCI), carbon dioxide (CO{sub 2}), and steam (H{sub 2}O), to obtain data useful to develop a process more economic than existing processes and to report all findings. Quarter summary: all modifications previously planned where completed and a reaction experiment was run. A couple design flaws were discovered, improvements were designed, and all parts are expected in the first week of July. Experiment {number_sign}6 is expected to run the following Monday. Barring further mishap, experiments will be run one each week thereafter. The project is behind schedule, but the project is well positioned to make significant and considerable progress.
Date:
December 1, 1991
Creator:
Ramirez, W. F.
Object Type:
Report
System:
The UNT Digital Library
Chicago, Burlington & Quincy (CBQ) 5072
A photograph print showing Chicago, Burlington & Quincy (CBQ) 5072, 2-8-2, Longmont, CO.
Date:
October 26, 1939
Creator:
Krambeck, J. Wesley
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Clipping: WASP Memorial Fly-In]
Newspaper clipping giving information about the Patriot's Parade. A list of former WASP with portraits and short biographies is also included.
Date:
May 28, 2005
Creator:
unknown
Object Type:
Clipping
System:
The Portal to Texas History
[Clipping: WASP Memorial Fly-In]
Newspaper clipping giving information about the Patriot's Parade. A list of former WASP with portraits and short biographies is also included.
Date:
May 28, 2005
Creator:
unknown
Object Type:
Clipping
System:
The Portal to Texas History
Colorado and Southern (CS) 60
A photograph postcard showing Colorado and Southern (C & S) 60, 2-8-0, at Idaho Springs, CO, with Fred Jukes and R.H. Kindig.
Date:
September 26, 1959
Creator:
Kindig, Richard H.
Object Type:
Postcard
System:
The Gateway to Oklahoma History
Colorado Central (C&C) 60
A photograph postcard showing Colorado Central (C&C) 10, 2-6-0, narrow gauge, upside down in a creek above Boulder, CO, on the Boulder Canyon branch of the Union Pacific (laterDB&W), wreck caused when flange on tender broke as locomotive was backing down grade. (Car: UP 1322)
Date:
1881
Creator:
Rogers, C. C.
Object Type:
Postcard
System:
The Gateway to Oklahoma History
Colorado Central (C&C) 154
A photograph postcard showing Colorado Central (C&C) 154, 2-6-0, narrow gauge on a 2-car mixed train on the Boulder Canyon branch of the Union Pacific (later DB&W). [Distant view of train]
Date:
1888~
Creator:
Rogers, C. C.
Object Type:
Postcard
System:
The Gateway to Oklahoma History
Colorado Central (C&C) 155
A photograph postcard showing Colorado Central (C&C) 155, 2-6-0, narrow gauge on a 3-car mixed train at Gold Hill, CO (Later Salina). This line was the Boulder Canyon branch of the Union Pacific and later became the DB&W.
Date:
1888~
Creator:
Rogers, C. C.
Object Type:
Postcard
System:
The Gateway to Oklahoma History
Colorado & Southern (CS) 646
A photograph postcard showing Colorado and Southern (C & S) 646 with C.B. & Q. Excursion train near Hygiene, CO, 5 cars, 15 mph.
Date:
August 24, 1958
Creator:
Kindig, Richard H.
Object Type:
Postcard
System:
The Gateway to Oklahoma History
Comment on Macroscopic Analysis of (P,N) Reactions
None
Date:
January 1, 1973
Creator:
Kunz, P. D.; Rickertsen, L. D. & Hoffmann, G. W.
Object Type:
Report
System:
The UNT Digital Library
Cow in a Field
Copy negative of two images, both showing a black and white cow standing in a field. The first image shows another cow in the background.
Date:
unknown
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
[Delta Sigma Theta Awards Gala at the 42nd national convention]
Video footage provided by The Black Academy of Arts and Letters shown during the Delta Sigma Theta Awards Gala. The footage shows an animated slideshow with photo slides of famous members of the sorority along with their names and city. A narrator speaks over the slideshow giving a brief description of the women's accomplishments. The women commonly serve their community in positions of education, politics, civil rights, and public service.
Date:
October 6, 1994
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
Denver & Rio Grande Western (DRGW) 1704 on "Exposition Flyer"
A photograph postcard showing the Denver & Rio Grande Western (DRGW) 1704, 4-8-4, on a passenger train No. 5, "Exposition Flyer", passing through Tunnel #28, just east of Pinecliffe, CO, 25 mph.
Date:
July 12, 1942
Creator:
George, Preston
Object Type:
Postcard
System:
The Gateway to Oklahoma History
Denver & Rio Grande Western (DRGW) 3405
A photograph print showing Denver & Rio Grande Western (DRGW) 3405, 2-8-8-2, on westbound freight extra at Crescent, CO, on the D&SL Ry.
Date:
August 1935
Creator:
Kindig, Richard H.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Denver & Salt Lake (D&SL) 303
A photograph print showing Denver & Salt Lake (D&SL) 303, 4-6-0, on passenger train No. 2, eastbound, above Pinecliffe, CO, 2 cars.
Date:
July 13, 1941
Creator:
George, Preston
Object Type:
Photograph
System:
The Gateway to Oklahoma History