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452 Matching Results
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[Anne Hodges, Studying]
Photograph of Anne Hodges studying at the North Texas campus in Denton. She sits at a desk with books and periodicals scattered around her.
Date:
January 3, 1962
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
BIO-ORGANIC CHEMISTRY QUARTERLY REPORT. December 1961, January andFebruary 1962
It has been known for a hundred years that formaldehyde polymerizes to carbohydrate substances in alkaline media. Although the reaction has long attracted much attention, only recently has a detailed qualitative analysis of the products been carried out by chromatographic methods. We have started to re-examine this reaction by combining chromatography with radioactive tracer techniques in the hope of refining the quantitative aspects of the analysis. Our particular interest has been to develop methods for determining the relative proportions of ribose and ribulose in the mixtures of sugars formed in basic media, as well as under other polymerizing conditions. The finding of large amounts of these sugars might help to explain the occurrence of ribose as the only basic sugar in the fundamental replicating molecules--the nucleic acids. Formaldehyde is thought to have been present in the primitive reducing atmosphere which existed before life first appeared. The ribonucleic acids must have appeared in the constitution of reproducing systems at a very early stage in the development of living organisms. In this study, the polymerizations of formaldehyde were carried out in calcium hydroxide suspensions at 40{sup o}. Aliquots of the reaction mixtures were withdrawn at after various time intervals and the alkali …
Date:
April 3, 1962
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Bellaire Texan (Bellaire, Tex.), Vol. 9, No. 32, Ed. 1 Wednesday, October 3, 1962
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
October 3, 1962
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Bellaire Texan (Bellaire, Tex.), Vol. 8, No. 45, Ed. 1 Wednesday, January 3, 1962
Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date:
January 3, 1962
Creator:
Norton, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Dublin Progress (Dublin, Tex.), No. 6, Ed. 1 Thursday, May 3, 1962
Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date:
May 3, 1962
Creator:
Forson, Rance
Object Type:
Newspaper
System:
The Portal to Texas History
The Shamrock Texan (Shamrock, Tex.), Vol. 59, No. 4, Ed. 1 Thursday, May 3, 1962
Weekly newspaper from Shamrock, Texas that includes local, state, and national news along with advertising.
Date:
May 3, 1962
Creator:
Montgomery, Arval
Object Type:
Newspaper
System:
The Portal to Texas History
Honey Grove Signal-Citizen (Honey Grove, Tex.), Vol. 72, No. 30, Ed. 1 Friday, August 3, 1962
Weekly newspaper from Honey Grove, Texas that includes local, state, and national news along with advertising.
Date:
August 3, 1962
Creator:
Morrow, Joe T.
Object Type:
Newspaper
System:
The Portal to Texas History
The Brady Standard and Heart O' Texas News (Brady, Tex.), Vol. 53, No. 42, Ed. 1 Friday, August 3, 1962
Weekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
August 3, 1962
Creator:
Smith, L. B.
Object Type:
Newspaper
System:
The Portal to Texas History
The Brady Herald (Brady, Tex.), Vol. 19, No. 35, Ed. 1 Tuesday, July 3, 1962
Weekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
July 3, 1962
Creator:
Wilson, Bob
Object Type:
Newspaper
System:
The Portal to Texas History
The Brady Herald (Brady, Tex.), Vol. 19, No. 22, Ed. 1 Tuesday, April 3, 1962
Weekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
April 3, 1962
Creator:
Wilson, Bob
Object Type:
Newspaper
System:
The Portal to Texas History
The Winkler County News (Kermit, Tex.), Vol. 26, No. 104, Ed. 1 Thursday, May 3, 1962
Semi-weekly newspaper from Kermit, Texas that includes local, state, and national news along with advertising.
Date:
May 3, 1962
Creator:
Williams, Nev H.
Object Type:
Newspaper
System:
The Portal to Texas History
The Comanche Chief (Comanche, Tex.), Vol. 89, No. 6, Ed. 1 Friday, August 3, 1962
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
August 3, 1962
Creator:
Wilkerson, J. C.
Object Type:
Newspaper
System:
The Portal to Texas History
Panhandle Herald (Panhandle, Tex.), Vol. 75, No. 42, Ed. 1 Thursday, May 3, 1962
Weekly newspaper from Panhandle, Texas that includes local, state, and national news along with extensive advertising.
Date:
May 3, 1962
Creator:
Peoples, Don
Object Type:
Newspaper
System:
The Portal to Texas History
Delayed Failure Hydrogen Embrittlement of Zirconium: Quarterly Report Number 1, September - December 1961
Abstract: "The purpose of this investigation is to determine the extent to which zirconium exhibits delayed failure (static fatigue) as caused by a combination of absorbed hydrogen and applied stress. Both notched and unnotched specimens of unalloyed zirconium and Zircaloy-2 are being initially hydrogenated to 200 ppm by means of a modified Sieverts apparatus, and delayed failure studies are proceeding at room-temperature. Thus far only preliminary data on unnotched, unalloyed zirconium are available; at the 200 ppm hydrogen level, this material appears to be relatively insensitive to delayed failure at room-temperature."
Date:
January 3, 1962
Creator:
Weinstein, Daniel & Holtz, F. C.
Object Type:
Report
System:
The UNT Digital Library
The Clarksville Times (Clarksville, Tex.), Vol. 90, No. 29, Ed. 1 Friday, August 3, 1962
Weekly newspaper from Clarksville, Texas that includes local, state, and national news along with advertising.
Date:
August 3, 1962
Creator:
Pinson, Joe
Object Type:
Newspaper
System:
The Portal to Texas History
SNAP re-entry orbit; comments on the atmospheric entry and discussion of a proposed test
In order to evaluate entry into the atmosphere of an oblate (equatorial bulge) earth a standard atmosphere was used in conjunction with the standard rotating oblate spheroid. The density variation encountered in any one polar orbit around the earth will vary by about a factor of ten, due to oblateness. Therefore, the important effects on the re-entry trajectory are atmospheric density and oblateness of the earth. The SNAP configuration burn up characteristics will differ considerably between the steep (6/sup 0/) entry of the NASA Scout test and the orbital decay trajectory. However, the test can verify heat transfer rates on the actual configuration, and by proper calculation of material response, the actual decay breakup prediction can be improved.
Date:
August 3, 1962
Creator:
Ackermann, W. O.; Arthur, P. D. & Nelson, D. K.
Object Type:
Report
System:
The UNT Digital Library
Electromotive Force of Transfer Systems Containing Membranes
Report describes a few experiments designed to test the analysis of some systems where chemical energy can be converted to electric energy. From Abstract: "If a chemocouple is defined as an isothermal closed circuit, composed of two or more homogeneous ionic aqueous phases separated by two or more barriers of different sets of ionic transport numbers, we find that a spontaneous electric current flows in the closed circuit."
Date:
March 3, 1962
Creator:
Nime, Leslie F. & Kuo, Jean
Object Type:
Report
System:
The UNT Digital Library
Investigations of the Potassium-Argon Method of Age Determination Using Solid Isotopic Dilution and Gas Removal by Crushing
Technical report outlining preliminary work on a new technique of isotopic dilution analysis useful in the measurement of the radiogenic argon content of rocks or mineral samples in age determination.
Date:
April 3, 1962
Creator:
Naughton, John J.
Object Type:
Report
System:
The UNT Digital Library
The Cherokeean. (Rusk, Tex.), Vol. 114, No. 46, Ed. 1 Thursday, May 3, 1962
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
May 3, 1962
Creator:
Whitehead, E. H.
Object Type:
Newspaper
System:
The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 73, No. 18, Ed. 1 Thursday, May 3, 1962
Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date:
May 3, 1962
Creator:
Ezzell, Ben
Object Type:
Newspaper
System:
The Portal to Texas History
Bastrop Advertiser (Bastrop, Tex.), Vol. 110, No. 10, Ed. 1 Thursday, May 3, 1962
Weekly newspaper from Bastrop, Texas that includes local, state and national news along with extensive advertising.
Date:
May 3, 1962
Creator:
Standifer, Amy S.
Object Type:
Newspaper
System:
The Portal to Texas History
The Crosbyton Review (Crosbyton, Tex.), Vol. 54, No. 18, Ed. 1 Thursday, May 3, 1962
Weekly newspaper from Crosbyton, Texas that includes local, state and national news along with advertising.
Date:
May 3, 1962
Creator:
Bennett, Patrick
Object Type:
Newspaper
System:
The Portal to Texas History
Effect of process tube dimensions on tube life
In recent months, several process tubes installed during 1961 have been removed and examined out-of-pile in connection with Tube Corrosion Monitor Studies.1 Most of the tubes were believed to be uniform-wall .080in.-nominal-rib-height tubes. The ex-reactor dimensional measurements obtained near the inlet flange showed,that the tubes did not have uniform walls or .08011 nominal rib heights. Subsequently, dimensional measurements were obtained on approximately 200 new process tubes in an effort to determine the extent of dimensional variations in new process tubes as received from the vendors. The effects of the variations on tube corrosion and tube life are discussed in this report.
Date:
December 3, 1962
Creator:
Hough, C. G.; Fuller, N. E. & Jensen, R. D.
Object Type:
Report
System:
The UNT Digital Library
Proposal for the Irradiation of Cladding Studies Capsules, Series 2
Localized cladding instability or necking has resulted in failures of the Zr-2 cladding of rod cluster and tubular fuel elements and fuel rods in NaK filled capsules. The cause of this non-uniform cladding strain is thought to be a combination of the effects of irradiation and nonuniform cladding thickness. To determine the influence of these two factors and that of temperature on the susceptibility to failure, and to obtain data related to cladding thickness tolerances for the NPR fuel elements an irradiation experiment was designed. This experiment consisted of eighteen capsules each containing three Zr-2 clad uranium rods. Cladding thickness variations of up to 25 percent were introduced in the cladding by machining ``grooves`` longitudinally on the outer surface. The temperatures of the cladding were established by the thickness of the capsule wall. These capsules, charged in DR Reactor in October 1961, were prematurely discharged after five days irradiation because of a rupture. The cause of the rupture was established to be overheating and accelerated corrosion of the Zr-2 capsule body as a result of inadequate coolant to the capsule surface.
Date:
May 3, 1962
Creator:
Weber, J. W.
Object Type:
Report
System:
The UNT Digital Library