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Radionuclides in plankton from the South Pacific Basin (open access)

Radionuclides in plankton from the South Pacific Basin

We have initiated an investigation of the utility of marine plankton as bioconcentrating samplers of low-level marine radioactivity in the southern hemisphere. A literature review has shown that both freshwater and marine plankton have trace element and radionuclide concentration factors (relative to water) of up to 10/sup 4/. We participated in Operations Deepfreeze 1981 and 1982, collecting a total of 48 plankton samples from the USCGC Glacier on its Antarctic cruises. Battelle Pacific Northwest Laboratories sampled air, water, rain, and fallout. We were able to measure concentrations in plankton of the naturally-occurring radionuclides /sup 7/Be, /sup 40/K, and the U and Th series, and we believe that we have detected low levels of /sup 144/Ce and /sup 95/Nb in seven samples ranging as far south as 68/sup 0/. Biological identification of the plankton suggests a possible correlation between radionuclide concentration and the protozoa content of the samples. 7 references, 5 figures.
Date: March 23, 1984
Creator: Marsh, K.V. & Buddemeier, R.W.
Object Type: Report
System: The UNT Digital Library
Chemical Technology Division, Unit Operations Section Monthly Progress Report, February 1962 (open access)

Chemical Technology Division, Unit Operations Section Monthly Progress Report, February 1962

In the operation of 6-in.-dia. foam-liquid columns, increase in either the liquid flow or foam flow caused increased channeling with increased HTU. Flooding values for the Immi mixer-settler were obtalned using the amine extraction final cycle Pu flowsheet. Two tests of the addltlon of uranyl nitrate to a thoria sol were made, one of which gave a good product and the other a product which disintegrated during calcination. Material balances for 22 waste calcination runs are summarized. (auth)
Date: August 23, 1962
Creator: Whatley, M. E.; Haas, P. A.; Horton, R. W.; Ryon, A. D.; Suddath, J. C. & Watson, C. D.
Object Type: Report
System: The UNT Digital Library
Chemical Technology Division, Unit Operations Section Monthly Progress Report, June 1961 (open access)

Chemical Technology Division, Unit Operations Section Monthly Progress Report, June 1961

An interfacial viseometer was built for use in an interfacial phenomena study. Installation of a 6-in.-ID foam separation column system was completed. The dispersiondrying-sintering characteristics of six low-nitrate batches of thoria sol material were studied. The average effective porosity of the CuO pellets used for reactor helium purification was determined to be 0.0545 for H/ sub 2/ transport and 0.0526 for CO transport. In continuous Zirflex dissolution studies, no H/sub 2/O/sub 2/ decomposition was observed when 10% H/sub 2/O/sup 2 was fed into boiling dissoivent through a water-cooled nozzle and the oxygen concentration in the scrubbed off-gas could be used to control the H/sub 2/O/sub 2/ concentration in the dissolver. The free fluoride in Zirflex solutions must be maintained above 1 molar in order to prevent uranium precipitation at low concentrations of uranium even though the F/sup -//U ratio exceeds 100. Chopped stainless steel-clad UO/sub 2/ sections were leached in a 4 stage pyrex leacher model using 6, 7, and 8 M nitric acid as the dissolvent. The temperature distribution expected within fuel elements consisting of square arrays of tubes was calculated for shipping conditions assuming heat to be transferred only by radiation. HETS values were calculated for uranium stripping …
Date: January 23, 1962
Creator: Whatley, M. E.; Haas, P. A.; Horton, R. W.; Ryon, A. D.; Suddath, J. C. & Watson, C. D.
Object Type: Report
System: The UNT Digital Library
Heavy mass states (open access)

Heavy mass states

The indirect evidence for the production of a heavy lepton and direct evidence for the product of a new hadronic state or states in proton-proton interactions is considered for the interpretation requiring the existence of two more leptons and two new quarks. It is shown that such a picture is consistent and in good agreement with existing data. The new structure is located at M = 9.54 GeV/c/sup 2/ and is much wider than the experimental resolution. Also it is asymmetric, suggesting the presence of several resonances. 7 references. (JFP)
Date: August 23, 1977
Creator: Paschos, E. A.
Object Type: Article
System: The UNT Digital Library
Synergistic capture mechanisms for alkali and sulfur species from combustion (open access)

Synergistic capture mechanisms for alkali and sulfur species from combustion

This report presents work done on a laboratory combustor in an attempt to identify mechanisms that govern the simultaneous capture of alkali and sulfur species using sorbent injection techniques. The mechanisms of capture fall into two broad categories i.e. Physical transport of alkali species (in vapor or condensed phase) to the sorbent surface and surface reaction between the alkali species and the sorbents. Water solubility, though not specific, has been used to get an indication of relative significance of these two broad mechanisms. It is assumed that the physically adsorbed alkali species on sorbents are predominantly water soluble while the chemically reacted alkali content is predominantly water insoluble. In order to infer possible dominant mechanisms, specific parameters has been varied during experimentation. Such parameters include, speciation, particle time-temperature history, and furnace burning conditions.
Date: April 23, 1992
Creator: Peterson, T.W.; Shadman, F.; Wendt, J.O.L. & Mwabe, P.O.
Object Type: Report
System: The UNT Digital Library
''Figure of merit'' Q/. mu. /sub max//sup 2/3/, for beam transport through periodic focussing systems (open access)

''Figure of merit'' Q/. mu. /sub max//sup 2/3/, for beam transport through periodic focussing systems

A discussion is given of a figure of merit indicative of the stability of high intensity beam transport systems. A table is provided giving this quantity under various conditions, and the limits for solenoidal focusing systems are obtained. (PMA)
Date: November 23, 1977
Creator: Laslett, L.J.
Object Type: Article
System: The UNT Digital Library
A TRANSISTORIZED ALPHA COUNTER FOR AN ALPHA GAUGE (open access)

A TRANSISTORIZED ALPHA COUNTER FOR AN ALPHA GAUGE

A transistorized instrument prototype was designed and constructed to replace a vacuum-tube instrument in an alpha gauge, which measures the thickness density of gases. The instrument amplifies, shapes, discriminates, and counts alpha pulses from a Au-Si surface-barrier detector exposed to an alpha source in a gas-filled chamber. The circuit consists of a charge-sensitive preamplifier, a main amplifier with pulse clipping, a Schmitt trigger, a diode pump, and a count rate meter. Preliminary tests gave results comparable to the vacuum-tube instrument. Accuracy of counting was within 10% for 0.5- to 10-Mev alpha particles emitted at a maximum rate of 10/sup 6 per sec. The instrument was stable at 25 to 55 deg C, is small and portable, and costs less than 0. An infinitely thick, alpha source that will give a high count rate is being constructed for final tests. (auth)
Date: August 23, 1962
Creator: Kopp, M.C.
Object Type: Report
System: The UNT Digital Library
Axicell design for the end plugs of MFTF-B (open access)

Axicell design for the end plugs of MFTF-B

Certain changes in the end-plug design in the Mirror Fusion Test Facility (MFTF-B) are described. The Laboratory (LLNL) proposes to implement these changes as soon as possible in order to construct the machine in an axicell configuration. The present physics and technology goals as well as the project cost and schedule will not be affected by these changes.
Date: April 23, 1982
Creator: Thomassen, K.I. & Karpenko, V.N.
Object Type: Report
System: The UNT Digital Library
Migratory Agricultural Labor: References to Books, Periodicals, and Films, 1959-1969 (open access)

Migratory Agricultural Labor: References to Books, Periodicals, and Films, 1959-1969

This report and bibliography contains references to books, documentaries, and magazine articles that study migrant workers. It also contains information on specific issues that affect migratory agricultural workers, such as the Bracero program, the California grape strike, education, health, housing, and welfare, income, and more.
Date: June 23, 1969
Creator: Warnell, Katherine S.
Object Type: Report
System: The UNT Digital Library
[News Script: Bank robbery] (open access)

[News Script: Bank robbery]

Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a broadcast news story.
Date: December 23, 1968
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
[News Script: CAA] (open access)

[News Script: CAA]

Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date: September 23, 1968
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
[News Script: Law Dean] (open access)

[News Script: Law Dean]

Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date: October 23, 1968
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
[News Script: UTA] (open access)

[News Script: UTA]

Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date: October 23, 1968
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
[Letter from Chad Woolery to Jack Davis and Bill McCarter, November 23, 1993] (open access)

[Letter from Chad Woolery to Jack Davis and Bill McCarter, November 23, 1993]

Photocopy of a letter from Chad Woolery, General Superintendent, Dallas ISD, to Jack Davis and Bill McCarter, co-directors of the North Texas Institute for Educators on the Visual Arts. Woolery starts the letter by stating Dallas ISD's commitment to NTIEVA and that Site Coordinator for DISD, Janice Wiggins will contribute 10% of her time during the 1993-1994 calendar year to activities related to staff development and efforts of discipline-based art education programs. Attached in the letter are a stipend worksheets for the faculty participation of the Institute.
Date: November 23, 1993
Creator: Woolery, Chad
Object Type: Letter
System: The UNT Digital Library
[Letter from Mitch Jericho to Jack Davis, October 23, 1995] (open access)

[Letter from Mitch Jericho to Jack Davis, October 23, 1995]

Photocopy of a letter from Mitch Jericho to Jack Davis, Dean of the School of Visual Arts at the University of North Texas. In regards to the upcoming Young Audiences conference being held from April 24th to the 28th in Dallas. Jericho has mentioned that he asked Jeffrey Patchen to be a speaker on Saturday, the 27th and that Patchen has sent a confirmation of his appearance, however, Jericho writes that his budget is limited and was wondering of Davis is interested in having him come talk to his students and staff. Jericho has also written to Bill McCarter to ask if they are interested in Patchen for the institute.
Date: October 23, 1995
Creator: Jericho, Mitch
Object Type: Letter
System: The UNT Digital Library
[RE: "Beyond The 3 Rs: Transforming Education in the Arts," November 23, 1994] (open access)

[RE: "Beyond The 3 Rs: Transforming Education in the Arts," November 23, 1994]

Photocopy of a letter from Julie Abel to Sheila Brown, Anne Lindsey, Jessie Lovano-Kerr, Nancy MacGregor, Bill McCarter, Susan Rotilie, and Joyce Wright. Cc'd are Jack Davis, Ginni Gembica, Phyllis Johnson, Jeff Patchen, Nancy Roucher, Lori Weisgerber, Margaret DiBlasio, Edith Johnson, Michael Parsons, Vicki J. Rosenberg and Sunu Sukumaran. Providing logistics about "Beyond The 3 Rs: Transforming Education in the Arts" conference to be held January 12-14, 1995 at the Washington Hilton and Towers in Washington D.C. The letter is written to those will be exhibiting at the conference and provides specifications for the exhibit space. An exhibit schedule for the conference is included on the third page.
Date: November 23, 1994
Creator: Abel, Julie
Object Type: Letter
System: The UNT Digital Library

[Drummer's Expo Photograph 9]

Photograph taken at a Drummer's Expo event, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: [2009-09-23..2009-09-25]
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Drummer's Expo Photograph 27]

Photograph taken at a Drummer's Expo event, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: [2009-09-23..2009-09-25]
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Drummer's Expo Photograph 25]

Photograph taken at a Drummer's Expo event, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: [2009-09-23..2009-09-25]
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Drummer's Expo Photograph 5]

Photograph taken at a Drummer's Expo event, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: [2009-09-23..2009-09-25]
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Drummer's Expo Photograph 14]

Photograph taken at a Drummer's Expo event, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: [2009-09-23..2009-09-25]
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Drummer's Expo Photograph 13]

Photograph taken at a Drummer's Expo event, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: [2009-09-23..2009-09-25]
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Drummer's Expo Photograph 4]

Photograph taken at a Drummer's Expo event, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: [2009-09-23..2009-09-25]
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Drummer's Expo Photograph 23]

Photograph taken at a Drummer's Expo event, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: [2009-09-23..2009-09-25]
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library