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THE PHOTOVOLTAIC EFFECT AND PHOTOCONDUCTIVITY IN LAMINATED ORGANICSYSTEMS (open access)

THE PHOTOVOLTAIC EFFECT AND PHOTOCONDUCTIVITY IN LAMINATED ORGANICSYSTEMS

As a result of a wide variety of studies on photosynthesis in living plants and plant fragments, together with the development of photosensitive, photovoltaic junctions in inorganic crystals and the discovery and exploration of semiconduction in organic molecular substances, a suggestion has been made that the primary quantum conversion process in photosynthetic tissues involves the creation and separation of charge to opposite sides of an asymmetrically-constructed lamina, followed by the trapping of both the electrons and the holes which then lead to their respective chemical processes, namely reduction of carbon dioxide and oxidation of the water to oxygen. This has led us to study model systems as semiconductors with a view to creating an organic photovoltaic junction.
Date: September 1, 1958
Creator: Kearns, David & Calvin, Melvin
System: The UNT Digital Library
Graphite radiation damage as a reactor operational problem (open access)

Graphite radiation damage as a reactor operational problem

Radiation Damage to the graphite moderator has played an important role in the history of reactor operation at Hanford. The operational problems, potential and real, which result from dimensional instability, stored energy, and gasification, as well as the solutions to these problems are discussed. The key to the graphite problems is operating temperature and its control. At present, stack expansion remains in the fringe regions of the original reactors, which coupled with the contraction of the central region gives rise to curvature problems in the top portion of the reactors. Stored energy is not a safety hazard because the release spectrum is such that a spontaneous and self sustained release cannot occur. Oxidation of the graphite moderator is controlled by maintaining operating temperature of the stack such that no significant amount of oxidation occurs.
Date: April 14, 1958
Creator: Curtiss, D. H.
System: The UNT Digital Library
L'Archeveque: The Outlaw (open access)

L'Archeveque: The Outlaw

This brief article by J. Evetts Haley details the interactions between Charles Goodnight and the Mexican outlaw, Sostenes Archeveque.
Date: Autumn 1958
Creator: Haley, J. Evetts
System: The Portal to Texas History
Pyrometallurgical Purification of Plutonium Reactor Fuels (open access)

Pyrometallurgical Purification of Plutonium Reactor Fuels

Pyrometallurgical methods studied are liquation, self-drossing and filtration, slagging by the addition of oxide, carbide, or halide, liquid metal extraction, complete conversion to halide, followed by filtration and selective reduction of the plutonium, and electrorefininng. Experimental techniques and results are presented for each method. (auth)
Date: June 1, 1958
Creator: Leary, J.A.; Benz, R.; Bowersox, D.F.; Bjorklund, C.W.; Johnson, K.W.R.; Maraman, W.J. et al.
System: The UNT Digital Library
Ion exchange properties of hydrous oxides (open access)

Ion exchange properties of hydrous oxides

The large class of amorphous insoluble hydrous oxides has interesting ion exchange properties. These materials have high capacities and suitable exchange rates and may therefore be used in packed columns in typical chromatographic (ion exchange) manner. Hydrous oxides may exhibit either cation exchange or anion exchange properties, or both. The type of adsorption depends on the element on which the oxide is based, on the acidity of the medium and, to some extent, on the ion adsorbed. Though some of the most acidic oxides are soluble (e.g., P/sub 2/O/sub 5/) or easily dispersible (e.g., MoO/sub 3/ WO/sub 3/) their intrinsic cation exchange properties may be utilized by incorporating them in excess into an insoluble matrix, i.e., by preparing certain insoluble acidic salts. Some of the materials with cation exchange properties may be used even with extremely small columns - for the separation of the alkali metals from each other - or of the alkaline earths. The specificity of these compounds for cesium in acidic solutions permits the almost unique isolation of this element from properties all others. Those oxides with anion exchange properties also have unusual selectivities compared with the organic ion exchangers. Oxides based on Bi(III) have high selectivities …
Date: June 1, 1958
Creator: Kraus, K. A.; Phillips, H. O.; Carlson, T. A. & Johnson, J. S.
System: The UNT Digital Library
Aqueous Decontamination of Plutonium From Fission Product Elements (open access)

Aqueous Decontamination of Plutonium From Fission Product Elements

None
Date: June 1, 1958
Creator: Winchester, R. S. & Maraman, W. J.
System: The UNT Digital Library
Responsibility of the Surgeon in Comprehensive Care of the Hospitalized Patient (open access)

Responsibility of the Surgeon in Comprehensive Care of the Hospitalized Patient

Article reprinted from the Texas State Journal of Medicine, addressing the issues of overcrowding and lack of staff in hospitals, as well as nursing practices.
Date: June 1958
Creator: Blocker, T. G., Jr.
System: The Portal to Texas History
Radiochemical Studies of the Fast Neutron Fission of U$sup 235$ and U$sup 238$ (open access)

Radiochemical Studies of the Fast Neutron Fission of U$sup 235$ and U$sup 238$

Radiochemical studies of the fast neutron fission of U/sup 235/ and U/sup 238/ have been made in the mass region beyond mass 143 with two neutron energy distributions. These studies provide measurements of the relative fission yields of several chains in the rare earth group in fission of U/sup 235/ and U/sup 238/ caused by neutrons with an energy distribution very close to unmoderated fission neutrons and by neutrons with an energy distribution peaked at 8 Mev. The increased contribution of very asymmetric modes of fission as the energy of the compound nucleus is increased is clearly shown by the results. In the fission of U/sup 238/ the yield at mass 161 is increased 2.9 times at the higher neutron energy. No previous measurements have been published on radiochemical studies of the fission of U/sup 238/at these neutron energies beyond mass 144 except at mass 156 for the lower neutron energy. (auth)
Date: June 1, 1958
Creator: Bunney, L. R.; Scadden, E. M.; Abriam, J. O. & Ballou, N. E.
System: The UNT Digital Library
TEST OF A DIRECT CYCLE NUCLEAR TURBOJET SYSTEM (open access)

TEST OF A DIRECT CYCLE NUCLEAR TURBOJET SYSTEM

This paper discusses research and development effort on a direct-cycle air-cooled nuclear reactor and propulsion equipment. The reactor experiment was designed, constructed, and tested during the period 1953 to 1956 to prove the feasibility of operating a turbojet engine from the heat produced by an air-cooled reactor. A description is given of the reactor, turbomachinery, shielding, control system, and associated equipment used in the first propulsion system test which was run in 1956. The system consisted of a modified J-47 turbojet engine arranged so that compressed air from the compressor was ducted through a shielded reactor and a chemical combustor in series before passing through the turbine and exhaust nozzle. The experimental reactor was based on a unique design concept in which water moderated at low temperature is contained in an aluminum core structure. The air-cooled metal fuel elements containing enriched uranium were arranged in passages running through the reactor. Thermal insulation was provided to protect the aluminum structure from the high temperature fuel elements and air, and to reduce heat losses to the moderator water. The entire reactor shield and turbojet assembly was mounted on a four-rail flat car for easy transfer by a shielded locomotive from the test …
Date: June 1, 1958
Creator: Shoults, D. R.
System: The UNT Digital Library
Memories of the Indian Territory Mission Field (open access)

Memories of the Indian Territory Mission Field

Article describes the author's personal experiences as a student and teacher in Indian Territory. Lilah Denton Lindsey explores her own experience in the mission field as well as those she worked with. Included is an excerpt of a story told to her by Dr. R. M. Loughridge about early mission work in the area.
Date: Summer 1958
Creator: Lindsey, Lilah Denton
System: The Gateway to Oklahoma History
Pioneer Days in the Cherokee Strip (open access)

Pioneer Days in the Cherokee Strip

Article describes the 1893 opening of the Cherokee Strip as experienced by the author and her family. Clara Williamson Warren Bullard describes her family's settlement of their claim, water scarcity, growth of communities, and the cultivation of land.
Date: Autumn 1958
Creator: Bullard, Clara Williamson Warren
System: The Gateway to Oklahoma History
The Bevatron (open access)

The Bevatron

None
Date: November 8, 1958
Creator: Lofgren, Edward J.
System: The UNT Digital Library
Fast Electronics in High-Energy Physics (open access)

Fast Electronics in High-Energy Physics

A brief review of fast electronics is given, leading up to the present state of the art. Cherenkov counters in high-energy physics are discussed, including an example of a velocity-selecting Cherenkov counter. An electronic device to aid in aligning external beams from high-energy accelerators is described. A scintillation-counter matrix to identify bubble chamber tracks is discussed. Some remarks on the future development of electronics in high-energy physics experiments are included.
Date: August 8, 1958
Creator: Weigand, Clyde
System: The UNT Digital Library
Wyandotte Mission: The Early Years, 1871-1900 (open access)

Wyandotte Mission: The Early Years, 1871-1900

Article discusses the history of the Wyandotte Mission from 1871 to 1900. A. M. Gibson describes the establishment of the mission school, the curriculum offered there, and the communities it served to educate and provide religious services to.
Date: Summer 1958
Creator: Gibson, Arrell M.
System: The Gateway to Oklahoma History
Old Ingalls: The Story of a Town That Will Not Die (open access)

Old Ingalls: The Story of a Town That Will Not Die

Article explores the growth of the town of "Old Ingalls" and accounts of the crime that occurred there during a time when bandit gangs roamed Oklahoma Territory. Leslie McRill includes newspaper accounts as well as excerpts from the diary of a town doctor, Dr. J. H. Pickering.
Date: Winter 1958
Creator: McRill, Leslie A.
System: The Gateway to Oklahoma History
Captain David McNair and His Descendants (open access)

Captain David McNair and His Descendants

Article describes the life and career of Captain David McNair, a prominent figure in the Cherokee Nation and owner of a boat yard on the Conasauga River. Carolyn Thomas Foreman discusses the people he helped throughout his life and includes correspondence from the time to create a clearer portrait of the man.
Date: Autumn 1958
Creator: Foreman, Carolyn Thomas, 1872-1967
System: The Gateway to Oklahoma History
Official Minutes of Quarterly Meeting, the Board of Directors, the Oklahoma Historical Society, Quarter Ending, July 24, 1958 (open access)

Official Minutes of Quarterly Meeting, the Board of Directors, the Oklahoma Historical Society, Quarter Ending, July 24, 1958

This section includes the minutes of quarterly meeting of the Board of Directors of the Oklahoma Historical Society that was held on July 24, 1958.
Date: Autumn 1958
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
Saddle Mountain Mission and Church (open access)

Saddle Mountain Mission and Church

Article discusses the story of Miss Isabel Crawford, a Baptist missionary who took up work ministering to the Kiowas at the Saddle Mountain Mission and Church. Hugh D. Corwin provides context to her journey and includes excepts of Crawford's account of her life there.
Date: Summer 1958
Creator: Corwin, Hugh D.
System: The Gateway to Oklahoma History
Old Osage Customs Die with the Last Pah-hue-skah (open access)

Old Osage Customs Die with the Last Pah-hue-skah

Article discusses the history of the "White Hair" or Pah-hue-skah family lineage of the Osage from the Louisiana Purchase to the period of removal. Frank F. Finney explores the chiefs of this family and the ways they retained Osage traditions throughout history.
Date: Summer 1958
Creator: Finney, Frank F.
System: The Gateway to Oklahoma History
New Officers of the Historical Society (open access)

New Officers of the Historical Society

Article provides biographical information about the new officers of the Oklahoma Historical Society and states their new titles. Colonel George H. Shirk has been elected new President of the OHS, H. Milt Phillips in the first Vice President of the OHS, and Mrs. Edna Bowman is the new Treasurer.
Date: Summer 1958
Creator: Fraker, Elmer L.
System: The Gateway to Oklahoma History
Official Minutes of the Annual and Quarterly Meetings of the Oklahoma Historical Society, April 24, 1958 (open access)

Official Minutes of the Annual and Quarterly Meetings of the Oklahoma Historical Society, April 24, 1958

This includes the minutes of the annual and quarterly meetings of the Board of Directors of the Oklahoma Historical Society that were both held on April 24, 1958.
Date: Summer 1958
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
A Walking Tour in the Indian Territory, 1874 (open access)

A Walking Tour in the Indian Territory, 1874

Article includes an account published in the Cherokee Advocate by Claiborne Addison Young of a walking tour of Indian Territory, which included descriptions of the prairie and the people living there, visits to the Wyandotte Mission, the Cherokee National Female Seminary at Park Hill, and the Cherokee Orphan Asylum.
Date: Summer 1958
Creator: Young, Claiborne Addison
System: The Gateway to Oklahoma History
The Case of the Plagiarized Journal (open access)

The Case of the Plagiarized Journal

Article compares the famous account of the Washita campaign by General George A. Custer with a journal donated to the Oklahoma Historical Society originally belonging to Lieutenant P. N. Hardman of the 7th Cavalry who served in the same campaign. George H. Shirk questions which account came first, if one author plagiarized another, and what amount of information may have been fabricated.
Date: Winter 1958
Creator: Shirk, George H.
System: The Gateway to Oklahoma History
A Military Burial at Lake Altus (open access)

A Military Burial at Lake Altus

Article provides a detailed account of the discovery and excavation of a military burial at Lake Altus. James B. Shaeffer explores the investigation of artifacts and remains that determined the skeleton to belong to a United States army soldier, and how that investigation is ongoning.
Date: Winter 1958
Creator: Shaeffer, James B.
System: The Gateway to Oklahoma History