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Mixing and Evaporation in a Packed Vessel
In connection with an evaluation of the operability of a 36-inch diameter remote evaporator at the Idaho Chemical Processing Plant that was to be packed with a corrosionresistant neutron-poison packing for criticality control, an investigation in a 30-inch diameter vessel proved that air sparging effectively mixes solutions. The data showed that at similar spar;e rates the presence of the packing caused an increase in the time needed for complete mixing. The investigation showed that solutions are readily evaporated in spite of the presence of packing in the tank. (auth)
Date:
September 20, 1961
Creator:
Cederberg, C. K. & Buckham, J. A.
Object Type:
Report
System:
The UNT Digital Library
Tellurium interference in /sup 129/I activation analysis
Measurement of /sup 129/I at low levels is required for effluent control, environmental assessment and tracer studies in the natural environment. Low level /sup 129/I analysis has also been used for measurement of natural-fission-produced /sup 129/I in minerals and ores as well as meteorites. The most sensitive method for /sup 129/I measurements is neutron activation analysis of iodine separated from a suitable sample. Minimum sample processing prior to neutron activation is desirable in order to reduce chances of sample contamination with uranium or /sup 129/I. A potential interference in the activation analysis method is the production of /sup 129/I (/sup 130/I) from Te impurities in the irradiated ampoule. Procedures have been developed and applied to measurement of the magnitude of the potential Te interference. One-tenth of a microgram of Te in the irradiated ampoule is sufficient to produce interference in the analysis. This is detectable by either radiochemical Te measurements or by /sup 131/I detection in the iodine fraction from the irradiated ampoule. This paper discusses the procedures and results of Te interference studies in /sup 129/I activation analysis. The interference was found to be insignificant for most analyses. 5 tables.
Date:
September 20, 1979
Creator:
Kaye, J. H.; Brauer, F. P. & Strebin, Jr., R. S.
Object Type:
Article
System:
The UNT Digital Library
Cross Sections for X-Ray Photoelectron-Induced Desorption of Hydrogen Ions From Metal Surfaces
We have measured the cross sections for x-ray photoelectron-induced desorption of hydrogen ions from beryllium, carbon, aluminum, tantalum, and gold surfaces. This report describes the results of the cross-section measurements, and discusses a time-of-flight technique that allows the determination of ionic-desorption cross sections as small as 10/sup -25/ cm/sup 2/ per photoelectron. 19 refs., 7 figs.
Date:
September 20, 1985
Creator:
Kinney, J. H.; Siekhaus, W. J. & Anderson, R. A.
Object Type:
Report
System:
The UNT Digital Library
Energy Exchange Within Ecosystems Annual Report: 1976
None
Date:
September 20, 1975
Creator:
Gates, David M.
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Eye gouge]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
September 20, 1994, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The MTX (Microwave Tokamak Experiment) data acquisition system
The diagnostic data from the MTX experiment is acquired and processed by an expandable, distributed, multivendor computer network. The system blends a variety of software into a coordinated, unified, and highly flexible design. Using modular software design techniques, we created a system stressing distributed processing, portability, and transparent data access. In our approach to modularity, we standardized communication interfaces between modules and separated generic tasks from machine and application-specific implementations. For flexible distributed processing, we used modular, portable software and LLNL facility that provides an interprocess communication system (IPCS) in the multivendor network. With transparent data access, any program can access data stored anywhere in the network without knowing the specific location. The computer hardware includes a DEC VAX cluster, HP workstations and HP desktop computers. We are using commercial software in addition to packages from MIT, ORNL, and LLNL. 4 refs., 4 figs.
Date:
September 20, 1989
Creator:
Butner, D. N.; Drlik, M.; Brown, M. D.; Casper, T. A.; Meyer, W. H. & Moller, J. M.
Object Type:
Article
System:
The UNT Digital Library
Lid Tank Shielding Facility Measurements Behind the ML-1 Mockup
An experimental evaluation of the shield design for the ML-1 mobile reactor was made at the Lid Tank Shielding Facility. Thermal-neutron fluxes, fast-neutron dose rates, and gamma-ray dose rates were measured behind slab mockups of the basic shield design and a number of possible variations. The designs embodied various combinations of lead, Hevimet, stainless steel, boral, water, and aqueous solutions of ammonium pentaborate at two concentrations. The after-shutdown decay characteristics of the basic design were determined, and data were obtained from a fairly accurate mockup of the stainless steel plenum and gas duct typical of the top and bottom regions of the ML-1 shield. Analysis of results and application to the final shield design are not reported. (auth)
Date:
September 20, 1961
Creator:
MacKellar, A. D.; Jung, L.; Mathews, D. R.; Muckenthaler, F. J.; Miller, J. M. & Sowards, N. K.
Object Type:
Report
System:
The UNT Digital Library
Selective emitter. Task II topical report for radiative-cooling materials
The theoretical basis of the selective emitter is that, if a material emits only in the 8-13 micron interval, it will absorb only in the same interval. After a survey of several candidate materials, the silicon oxynitride system was found to have better optical properties than previously used materials as well as economic feasibility, and efforts to acquire a sample are described. Other promising materials are described: polyvinylidene fluoride (Tedlar), silicon monoxide, silicon dioxide, and silicon nitride. (LEW)
Date:
September 20, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Home alone Pkg]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
September 20, 1994, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The Effect of Chemical Additives on the Synthesis of Ethanol
The objective of this research is to elucidate the role of various chemical additives on ethanol synthesis over Rh- and Ni-based catalysts. Chemical additives used for this study will include S, P, Ag, Cu, Mn, and Na which have different electronegativities. The effect of additives on the surface state of the catalysts, heat of adsorption of reactant molecules, reaction intermediates, reaction pathways, reaction kinetics, and product distributions is/will be investigated by a series of experimental studies of NO adsorption, reaction probing, study state rate measurement, and transient kinetic study. A better understanding of the role of additives on the synthesis reaction may allow us to use chemical additives to manipulate the catalytic properties of Rh- and Ni-based catalysts for producing high yields of ethanol from syngas. 27 refs. 7 figs., 2 tabs.
Date:
September 20, 1991
Creator:
Chuang, S. S. C. & Balakos, M. W.
Object Type:
Report
System:
The UNT Digital Library
Feasibility Study of a New Mass Flow System. Quarterly Report No. 5, June 1, 1961 to August 31, 1961
Activities are reported on development work on a mass flow system capable of measuring externally the properties of homogeneous flow, slurries, highly corrosive fluids, and multi-phase fiuids. In the proposed system, the fluid passes through an S-shaped tube wherein measurements of angular momentum and density yield mass flow directly. (B.O.G.)
Date:
September 20, 1961
Creator:
Haffner, J. W.
Object Type:
Report
System:
The UNT Digital Library
Ecological Sampling and Meteorological Calculation of Fallout on Forests Near Oak Ridge
Spatial patterns of radioactive contuamination on forest foliage were measured by gamma spectrometry and are discussed with respect to local vs. world- wide origin of the fallout and implications for ecology, health physics, and management of nuclear facilities. In September 1959, I/sup 131/ on dogwood leaf samples varied from over 500 mu mu c/g dry wt near Oak Ridge National Laboratory stacks to 1 to 7 mu mu c/g near the margins of the Oak Ridge Reservation. Stack fallout tended to occur closer to the source than was calculated from hourly wind data by an IBM 610 computer program based on Culkowski' s adaptation of the SuttonChamberlain theory of atmospheric diffusion and deposition. Over most of the Reservation levels of Ru/sup 106/ Cs/sup 137/ Zr/sup 9/ >s/sup 5/Nb/sup 95/ and Ce/sup 144/ were similar to levels found elsewhere (2 to 9, 1 to 3, 2 to 9, and 10 to 20 mu mu c/g respectively) and were presumably controlled by weapons fallout. Higher levels were found in small areas and indicate the need for attention to localized contamination, even though indirect estilevels considered hazardous from the standpoint of health physics. (auth)
Date:
September 20, 1961
Creator:
Olson, J.S.
Object Type:
Report
System:
The UNT Digital Library
The Effect of Chemical Additives on the Synthesis of Ethanol
The objective of this research is to elucidate the role of various chemical additives on ethanol synthesis over Rh- and Ni-based catalysts. Chemical additives used for this study will include S, P, Ag, Cu, Mn, and Na which have different electronegativities. The effect of additives on the surface state of the catalysts, heat of adsorption of reactant molecules, reaction intermediates, reaction pathways, reaction kinetics, and product distributions is/will be investigated by a series of experimental studies of NO adsorption, reaction probing, study state rate measurement, and transient kinetic study. A better understanding of the role of additives on the synthesis reaction may allow us to use chemical additives to manipulate the catalytic properties of Rh- and Ni-based catalysts for producing high yields of ethanol from snygas. 27 refs., 2 figs., 2 tabs.
Date:
September 20, 1991
Creator:
Chuang, S. C. & Balakos, M. W.
Object Type:
Report
System:
The UNT Digital Library
The Mangum Star. (Mangum, Okla. Terr.), Vol. 19, No. 12, Ed. 1 Thursday, September 20, 1906
Weekly newspaper from Mangum, Oklahoma that includes local, territorial, and national news along with advertising.
Date:
September 20, 1906
Creator:
Echols, R. C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Leader. (Guthrie, Okla.), Vol. 27, No. 40, Ed. 1 Thursday, September 20, 1917
Weekly newspaper from Guthrie, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 20, 1917
Creator:
Niblack, Leslie G.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star (Mangum, Okla.), Vol. 30, No. 14, Ed. 1 Thursday, September 20, 1917
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 20, 1917
Creator:
Jessee, Elmer V.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Oklahoma State Register (Guthrie, Okla.), Vol. 27, No. 20, Ed. 1 Thursday, September 20, 1917
Weekly newspaper from Guthrie, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 20, 1917
Creator:
Golobie, John
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Taloga Times-Advocate (Taloga, Okla.), Vol. 30, No. 15, Ed. 1 Thursday, September 20, 1923
Weekly newspaper from Taloga, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 20, 1923
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Safeguard. (Guthrie, Okla.), Vol. 13, No. 34, Ed. 1 Thursday, September 20, 1906
Weekly newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
September 20, 1906
Creator:
Buchanan, C. A.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Canadian Enterprise (Canadian, Indian Terr.), Vol. 3, No. 50, Ed. 1 Friday, September 20, 1907
Weekly newspaper from Canadian, Indian Territory that includes local, territorial, and national news along with advertising.
Date:
September 20, 1907
Creator:
Williams, B. W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Cushing Independent (Cushing, Okla.), Vol. 22, No. 5, Ed. 1 Thursday, September 20, 1917
Weekly newspaper from Cushing, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 20, 1917
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Weekly News. (Altus, Okla.), Vol. 19, No. 30, Ed. 1 Thursday, September 20, 1917
Weekly newspaper from Altus, Oklahoma that includes local, county, state, and national news along with advertising.
Date:
September 20, 1917
Creator:
Orr, J. P.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guthrie Daily Star (Guthrie, Okla.), Vol. 9, No. 167, Ed. 1 Friday, September 20, 1912
Daily newspaper from Guthrie, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 20, 1912
Creator:
Hornaday, W. H.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla. Terr.), Vol. 16, No. 26, Ed. 1 Thursday, September 20, 1906
Weekly newspaper from Guymon, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
September 20, 1906
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History