721 Matching Results

Results open in a new window/tab.

Tested method to minimize plutonium assay discrepancies between laboratories (open access)

Tested method to minimize plutonium assay discrepancies between laboratories

Plutonium assay differences are frequently observed between laboratories exchanging plutonium dioxide powders. These differences are commonly the result of chemical changes and/or nonhomogeneities in sampled materials. The irregularities are often caused by moisture absorption during sampling, packaging, shipment, and storage of the materials. A method is proposed which eliminates the effects of chemical change in samples, particularly moisture absorption, and minimizes sampling error. A nondestructive thermal watts/gram test on every preweighed sampled and total dissolution of these samples for chemical assay are the primary features which make this method effective. Because this method minimizes the error related to exchange material, it is possible to design an interlaboratory exchange program which demonstrates the assay capabiliies of the participants. In an experiment performed to demonstrate the effectiveness of this method, three PuO/sub 2/ batches of varying isotopic composition were synthesized at Mound to be used in the exchange tess. Powder sample aliquots from each batch were weighed directly into their vials under controlled atmospheric conditions. Calorimetric heat measurements were made on each vial to test homogeneity and verify sample weight. Six vials of each batch were chemically assayed at Mound and six at NBL (New Brunswick Laboratory). Both laboratories chose controlled-potential coulometry …
Date: January 29, 1982
Creator: Seiler, R. J.; Goss, R. L.; Rodenburg, W. W. & Rogers, D. R.
Object Type: Report
System: The UNT Digital Library
Technical evaluation report on the monitoring of electric power to the reactor-protection system for the Pilgrim Nuclear Power Station (open access)

Technical evaluation report on the monitoring of electric power to the reactor-protection system for the Pilgrim Nuclear Power Station

This report documents the technical evaluation of the monitoring of electric power to the reactor protection system (RPS) at the Pilgrim Nuclear Power Station. The evaluation is to determine if the proposed design modification will protect the RPS from abnormal voltage and frequency conditions which could be supplied from the power supplies and will meet certain requirements set forth by the Nuclear Regulatory Commission. The proposed design modifications will protect the RPS from sustained abnormal voltage and frequency conditions from the supplying sources.
Date: April 29, 1982
Creator: Selan, J.C.
Object Type: Report
System: The UNT Digital Library
TMX tandem-mirror experiments and thermal-barrier theoretical studies (open access)

TMX tandem-mirror experiments and thermal-barrier theoretical studies

This paper describes recent analysis of energy confinement in the Tandem Mirror Experiment (TMX). TMX data also indicates that warm plasma limits the amplitude of the anisotropy driven Alfven ion cyclotron (AIC) mode. Theoretical calculations show strong AIC stabilization with off-normal beam injection as planned in TMX-U and MFTF-B. This paper reports results of theoretical analysis of hot electrons in thermal barriers including electron heating calculations by Monte Carlo and Fokker-Planck codes and analysis of hot electron MHD and microinstability. Initial results from the TMX-U experiment are presented which show the presence of sloshing ions.
Date: July 29, 1982
Creator: Simonen, T. C.; Baldwin, D. E. & Allen, S. L.
Object Type: Article
System: The UNT Digital Library
Experimental studies of the beam-breakup mode on ETA: comparison with theory (open access)

Experimental studies of the beam-breakup mode on ETA: comparison with theory

The beam breakup mode has been observed and measured on ETA. Comparison between the measurements and the results of a computer code indicate that the beam breakup instability will be the most important limitation on current transport thru ATA. ETA Experiments that will enable a more accurate determination of the magnitude of the instability on ATA are discussed.
Date: January 29, 1982
Creator: Caporaso, G.J. & Struve, K.W.
Object Type: Report
System: The UNT Digital Library
TMX tandem-mirror experiments and thermal-barrier theoretical studies (open access)

TMX tandem-mirror experiments and thermal-barrier theoretical studies

This paper describes recent analysis of energy confinement in the Tandem Mirror Experiment (TMX). TMX data also indicates that warm plasma limits the amplitude of the anisotropy driven Alfven ion cyclotron (AIC) mode. Theoretical calculations show strong AIC stabilization with off-normal beam injection as planned in TMX-U and MFTF-B. This paper reports results of theoretical analysis of hot electrons in thermal barriers including electron heating calculations by Monte Carlo and Fokker-Planck codes and analysis of hot electron MHD and microinstability. Initial results from the TMX-U experiment are presented which show the presence of sloshing ions.
Date: July 29, 1982
Creator: Simonen, T. C.; Baldwin, D. E. & Allen, S. L.
Object Type: Article
System: The UNT Digital Library

[Photograph 2012.201.B0051.0939]

Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Driver Aided-- Ambulance attendants and fireman offer their aid to the driver of a car that went out of control in the 4800 block of S Villa Monday afternoon, knocking down a fence and striking a house."
Date: November 29, 1982
Creator: Albright, Bob
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0075.0182]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "All eyes are on Star-Spencer's Troy Henderson as he goes high in the air to score a lay up between Mark Duffer (10) and his Ada teammate.."
Date: January 29, 1982
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0089.0039]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Teri Bibb , a senior from Altus, is crowned the first Miss Oklahoma City University Friday night by April Clayton, Miss Oklahoma 1981."
Date: January 29, 1982
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0138.0453]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Mrs. Cody holds Hercules the opossum, who tries to get Kevin Cody's attention."
Date: September 29, 1982
Creator: Argo, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0154.0421]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The West's Jay Davis of Edmond peers around a pillar in the form of the East's Derrick Halcomb of Ada during the All-State basketball game Thursday night."
Date: July 29, 1982
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0171.0166]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Too many cooks don't soil the broth in the case of Putnam City west band director Bob early and band boosters Carol Cain, Pat Grennan and Bernice Johnson."
Date: September 29, 1982
Creator: Southerland, Paul B.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0137.0686]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Members of the Earlsboro Clown Troupe pose in their costumes outside an Earlsboro grocery store."
Date: April 29, 1982
Creator: Burnett, Roberta
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0137.0687]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Funny business goes on inside the J&J Grocery in Earlsboro when members of the Earlsboro Clown Troupe come to town."
Date: April 29, 1982
Creator: Burnett, Roberta
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0149.0506]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Willie Cross spins a bicycle wheel to see that it runs true and doesn't wobble."
Date: March 29, 1982
Creator: Burnett, Roberta
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0147.0429]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Edmond's American Legion coach Mark Craft checks out the pitching of David Schrader."
Date: June 29, 1982
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0134.0784]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "The Air Force Tribute statue along Couch Drive."
Date: June 29, 1982
Creator: Argo, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0148.0363]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Youngsters of Wilmont Place Baptist Church, 245 SE 45, hosted senior adults of the church on a trip through the Oklahoma City Zoo."
Date: July 29, 1982
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0134.0782]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Buffalo Bill at Cowboy Hall of Fame took four years to sculpt."
Date: June 29, 1982
Creator: Argo, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0140.0551]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Del City's Wade Compton makes a head-first slide into third base during an American Legion game with Edmond last week."
Date: June 29, 1982
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0138.0457]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Linda Cody holds up Charlotte the ferret for a pose, Charlotte is only one of the animals Mrs. Cody tends at her Bethany home."
Date: October 29, 1982
Creator: Argo, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0350.0215]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "The fishing is good on the Texas side."
Date: July 29, 1982
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History
System for Analyzing Coal-Liquefaction Products (open access)

System for Analyzing Coal-Liquefaction Products

A system for analyzing constituents of coal-derived materials comprises three adsorption columns and a flow-control arrangement which permits separation of both aromatic and polar hydrocarbons by use of two eluent streams. 4 figures.
Date: October 29, 1982
Creator: Dinsmore, Stanley R. & Mrochek, John E.
Object Type: Text
System: The UNT Digital Library
Bibliography and author index for electrical discharges in vacuum (1897 to 1980) (open access)

Bibliography and author index for electrical discharges in vacuum (1897 to 1980)

This bibliography covers the field of electrical discharges in vacuum, comprising both electrical breakdown in vacuum and vacuum arcs. A brief review section lists some review papers which would be helpful to the novice in this field. The bulk of the paper consists of bibliographic listings, arranged by year of publication and within each year, alphabetically by first author. An author index refers one to all papers authored or coauthored by a particular person. There are 2450 papers listed through December 1980.
Date: January 29, 1982
Creator: Miller, H. C.
Object Type: Report
System: The UNT Digital Library
Exploratory study of coal conversion chemistry. Quarterly report No. 2, August 19, 1981-November 18, 1981. [Hydroxydipnenylmethanes, triphenylmethane, diphenylether] (open access)

Exploratory study of coal conversion chemistry. Quarterly report No. 2, August 19, 1981-November 18, 1981. [Hydroxydipnenylmethanes, triphenylmethane, diphenylether]

This report describes work accomplished under two tasks: Task A, mechanisms of donor-solvent coal liquefaction, and Task B, CO/H/sub 2/O conversion systems. Under Task A, we describe additional evidence relating to the question of the mechanism of the iron oxide catalyzed cleavage of hydroxydiphenylmethanes. o-Hydroxydiphenylmethane is relatively more sensitive to catalysis by Fe/sub 3/O/sub 4/, a possible one electron oxidant, and triphenylmethane is relatively more sensitive to catalyzed cleavage by SiO/sub 2//Al/sub 2/O/sub 3/, a strong Bronsted acid catalyst. This provides further evidence that in the former case the reactions of radical cations are important in the cleavage mechanism. Tests with Cr/sub 2/O/sub 3/ show it to be ineffective under our reaction conditions as a catalyst for hydroxydiphenylmethane cleavage. We have also used the decomposition of diphenylether in tetralin, which we have previously shown to occur by a radical displacement reaction, as an indicator of steady state radical concentration in tetralin. The results of these experiments indicate that radical concentrations in tetralin are not significantly increased by spiking the tetralin with 1,2-dihydronaphthalene. This in turn suggests that rapid disproportionation of 1,2-dihydronaphthalene to tetralin and naphthalene takes place by way of a concerted reaction, in addition to a slower radical disproportionation …
Date: January 29, 1982
Creator: unknown
Object Type: Report
System: The UNT Digital Library