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5
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2
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19
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12
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10
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4
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181
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Aerial Radiometric and Magnetic Reconnaissance Survey of South-Central Colorado Trinidad Quadrangle: Volume 1. Instrumentation and Methods
This report describes the study made to define areas showing surface indications of a generally higher uranium content where detailed exploration for uranium would most likely be successful in the Trinidad quadrangle.
Date:
January 1980
Creator:
Texas Instruments Incorporated
Object Type:
Report
System:
The UNT Digital Library
Aerial Radiometric and Magnetic Reconnaissance Survey of South-Central Colorado Trinidad Quadrangle: Volume 2. [Results]
Second volume of data from a radiometric and magnetic reconnaissance survey of the Trinidad quadrangle in Colorado, including "Results of the interpretation in the form of a preferred anomaly map, along with significance-factor profile maps stacked profiles, histograms, and descriptions of the geology and known uranium occurrences" (vol. 1, p. 1).
Date:
January 1980
Creator:
Texas Instruments Incorporated
Object Type:
Report
System:
The UNT Digital Library
AF50 - Base Input
Contains base input from the Air Reserve Personnel Center, Denver, CO
Date:
January 4, 2006
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
AF50 - Base Visit Report
Contains the Base Visit Report for Air Force Personnel Center Denver, CO
Date:
January 4, 2006
Creator:
United States. Defense Base Closure and Realignment Commission.
Object Type:
Book
System:
The UNT Digital Library
An Air Concentrator for Very Low Grade Colorado Plateau Uranium Ores
Report discussing the use of an air concentrator on uraniferous sandstones for producing concentrates with over ten times the amount of uranium as original sandstone. A description of the concentrator, information regarding its operation, results of the concentration, information on the concentrator's applications, and a general summary are included.
Date:
January 1953
Creator:
Stieff, L. R. & Erickson, E. S., Jr.
Object Type:
Report
System:
The UNT Digital Library
[Aircraft Delivery Order #6]
Orders for several Air Force Pilots and WASP to ferry aircraft from Wichita Kansas to air bases in various U.S. cities.
Date:
January 28, 1944
Creator:
555th Army Air Forces Base Unit - 5th Ferrying Group
Object Type:
Text
System:
The Portal to Texas History
Approximation of continuity of lenticular Mesaverde Group sandstone lenses utilizing close-well correlations, Piceance Basin, NW Colorado. SPE 11610
Mesaverde Group sandstone units in 13 closely-spaced wells in the central and southern Piceance Basin of Colorado were correlated utilizing wireline log response quantitatively and qualitatively. Based on these correlations, the environmental subdivisions of the Mesaverde Group were characterized as follows: (1) paralic (upper mixed-marine) zone, occurring in the uppermost Mesaverde Group, includes thick sandstone units which are interpreted to be regionally continuous, (2) fluvial zone, containing point-bars 20 to 30+ ft thick, is interpreted to be correlatable to a maximum of 6800 ft, and (3) paludal zone has insufficient data to adequately characterize the sand units. However, 63 percent of the units are correlatable across at least 139 ft. An approximation of the dimensional characteristics of Mesaverde sandstone units has potential applications in designing hydraulic fracturing treatments and estimating gas reserves more accurately. 15 figures, 2 tables.
Date:
January 1, 1982
Creator:
Peterson, Richard E. & Kohout, Julie B.
Object Type:
Report
System:
The UNT Digital Library
Characterization of Fly Ash From Coal Combustion
Fly ash derived from coal combustion contains predominantly spherical particles which consist of an insoluble aluminosilicate glass containing several mineral impurities. An outer layer, 50 to 300 A thick, is rich in many potentially toxic trace elements in the form of simple and complex sulfates. This layer, which is soluble in water, contains essentially all of the particulate sulfur present in fly ash in the form of sulfate. The actual mechanism(s) of formation of particulate sulfate salts are ill-defined but probably involve adsorption of condensation of gaseous sulfur species onto fly ash surfaces within the power plant stack system.
Date:
January 1, 1978
Creator:
Natusch, D. F.S.
Object Type:
Article
System:
The UNT Digital Library
Chicago, Burlington & Quincy (CBQ) 2804 & 5115
A photograph print showing Chicago, Burlington & Quincy (CBQ) 2804, 4-6-2, and 5115, 2-8-2, double-heading a mixed freight extra, west of Keenesburg, CO.
Date:
January 18, 1943
Creator:
Schick, Joseph
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Clipping: On the Ski Slopes]
Newspaper clipping showing a photo of Miss Charlyne Creger (second from right) with a group of friends on skis at Winter Park, Colorado.
Date:
January 25, 1966
Creator:
unknown
Object Type:
Clipping
System:
The Portal to Texas History
Colorado & Southern (C&S) 68 & 69
A photograph postcard showing Colorado & Southern (C&S) 68, 2-8-0 (narrow gauge), on mixed freight with 69 on rear, west of Arvada, CO, 10 cars, 15 mph.
Date:
January 30, 1939
Creator:
Kindig, Richard H.
Object Type:
Postcard
System:
The Gateway to Oklahoma History
Colorado & Southern (C&S) 69
A photograph print showing Colorado & Southern (C&S) 69, 2-8-0, narrow gauge, Denver, CO.
Date:
January 30, 1939
Creator:
Kelley, Frank O.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Colorado & Southern (C&S) 906 & CB&Q 6300
A photograph postcard showing Colorado & Southern (C&S) 906 and CB&Q 6300, both 2-10-2, on southbound mixed freight extra, leaving Denver, CO, 52 cars, 35 mph.
Date:
January 26, 1947
Creator:
Kindig, Richard H.
Object Type:
Postcard
System:
The Gateway to Oklahoma History
Colorado & Southern (C&S) Depot
A photograph print showing Colorado & Southern (C&S) passenger & freight depot, Idaho Springs, CO.
Date:
January 30, 1939
Creator:
George, Preston
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Colorado & Southern (C&S) Narrow Gauge Train
A photograph print showing Colorado & Southern (C&S) narrow gauge train with gravel-filled hoppers.
Date:
January 30, 1939
Creator:
Kelley, Frank O.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Colorado & Southern (C&S) Narrow Gauge Train
A photograph print showing Colorado & Southern (C&S) narrow gauge train mixed freight train, second locomotive near rear of train.
Date:
January 30, 1939
Creator:
Kelley, Frank O.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Colorado State University Solar Heated and Cooled House
None
Date:
January 1, 1974
Creator:
Lof, G.O.G.
Object Type:
Article
System:
The UNT Digital Library
The Colorado Statesman (Denver, Colo.), Vol. 6, No. 17, Ed. 1 Saturday, January 27, 1900
Weekly African-American newspaper from Denver, Colorado that includes local, state and national news along with advertising.
Date:
January 27, 1900
Creator:
Hobson, S. H.
Object Type:
Newspaper
System:
The Portal to Texas 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
Comparative Performance of Two Types of Evacuated Tube Solar Collectors in a Residential Heating and Cooling System - The Progress Report
Two types of evacuated tube solar collectors have been operated in space heating, cooling and domestic hot water heating systems in Colorado State University Solar House I. An experimental collector from Corning Glass Works supplied heat to the system from January 1977 through February 1978, and an experimental collector from Philips Research Laboratory, Aachen, which is currently in use, has been operating since August 1978. A flat absorber plate inside a single-walled glass tube is used in the Corning design, whereas heat is conducted through a single glass wall to an external heat exchanger plate in the Philips collector. In comparison with conventional flat-plate collectors, both types show reduced heat losses and improved efficiency. For space heating and hot water supply in winter, the solar delivery efficiency of the Corning collector ranged from 49% to 60% of the incident solar energy. The portion of the space heating and domestic hot water load carried by solar energy through fall and winter ranged from 50% to 74%, with a four-month contribution of 61% of the total requirements. Data on the Philips collector are currently being analyzed.
Date:
January 1, 1979
Creator:
Conway, T. M.; Duff, W. S.; Loef, G. O. G. & Pratt, R. G.
Object Type:
Article
System:
The UNT Digital Library
Comparison of the Response of a Nai Scintillation Crystal With a Pressurized Ionization Chamber as a Function of Altitude, Radiation Level and RA-226 Concentration
The Grand Junction Uranium Mill Tailings Remedial Action-Radiological Survey Activities Group (UMTRA-RASA) program employs a screening method in which external exposure rates are used to determine if a property contaminated with uranium mill tailings is eligible for remedial action. Portable NaI detectors are used by survey technicians to locate contaminated areas and determine exposure rates. The exposure rate is calculated using a regression equation derived from paired measurements made with a pressurized ionization chamber (PIC) and a NaI detector. During July of 1985 extensive measurements were taken using a PIC and a NaI scintillator with both analogue and digital readout for a wide range of exposure rates and at a variety of elevations. The surface soil was sampled at most of these locations and analyzed for /sup 226/Ra. The response of the NaI detectors was shown to be highly correlated to radiation level but not to /sup 226/Ra concentration or elevation.
Date:
January 1, 1986
Creator:
Provencher, R.; Smith, G.; Borak, T.B. & Kearney, P.
Object Type:
Article
System:
The UNT Digital Library
Condition Survey of Wells and Springs in the Rio Blanco Project Area, Rio Blanco County, N.W. Colorado
A report regarding a survey of the condition of wells and springs in the Rio Blanco County, in N.W. Colorado.
Date:
January 10, 1973
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
DA - Base Input
Contains base input from Defense Finance and Accounting Office, CO
Date:
January 4, 2006
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
DA18 - Base Input
Contains base input from Defense Finance and Accounting Office, CO
Date:
January 4, 2006
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library