Latest content added for UNT Digital Library Searchhttps://digital2.library.unt.edu/search/?t=fulltext&fq=str_day%3A222024-01-27T08:14:00-06:00UNT LibrariesThis is a custom feed for searching UNT Digital Library SearchTexas Register, Volume 48, Number 51, Pages 7667-8062, December 22, 20232024-01-27T08:14:00-06:00https://texashistory.unt.edu/ark:/67531/metapth1637388/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1637388/"><img alt="Texas Register, Volume 48, Number 51, Pages 7667-8062, December 22, 2023" title="Texas Register, Volume 48, Number 51, Pages 7667-8062, December 22, 2023" src="https://texashistory.unt.edu/ark:/67531/metapth1637388/thumbnail/"/></a></p><p>A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.</p>FSA News - Lone Star State Edition: November 20232024-01-18T16:12:53-06:00https://texashistory.unt.edu/ark:/67531/metapth1633617/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1633617/"><img alt="FSA News - Lone Star State Edition: November 2023" title="FSA News - Lone Star State Edition: November 2023" src="https://texashistory.unt.edu/ark:/67531/metapth1633617/thumbnail/"/></a></p><p>Monthly newsletter from the Texas State Office of the USDA Farm Service Agency (FSA) discussing news and activities of the FSA, funding opportunities, and other information related to farming and agriculture in Texas.</p>FSA News - Lone Star State Edition: February 20232024-01-18T16:11:51-06:00https://texashistory.unt.edu/ark:/67531/metapth1633608/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1633608/"><img alt="FSA News - Lone Star State Edition: February 2023" title="FSA News - Lone Star State Edition: February 2023" src="https://texashistory.unt.edu/ark:/67531/metapth1633608/thumbnail/"/></a></p><p>Monthly newsletter from the Texas State Office of the USDA Farm Service Agency (FSA) discussing news and activities of the FSA, funding opportunities, and other information related to farming and agriculture in Texas.</p>FSA News - Lone Star State Edition: July 20222024-01-18T16:10:49-06:00https://texashistory.unt.edu/ark:/67531/metapth1633601/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1633601/"><img alt="FSA News - Lone Star State Edition: July 2022" title="FSA News - Lone Star State Edition: July 2022" src="https://texashistory.unt.edu/ark:/67531/metapth1633601/thumbnail/"/></a></p><p>Monthly newsletter from the Texas State Office of the USDA Farm Service Agency (FSA) discussing news and activities of the FSA, funding opportunities, and other information related to farming and agriculture in Texas.</p>Balanced Dairying: Economics, Volume 21, Number 1, January 20012023-12-09T17:21:59-06:00https://texashistory.unt.edu/ark:/67531/metapth1624335/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1624335/"><img alt="Balanced Dairying: Economics, Volume 21, Number 1, January 2001" title="Balanced Dairying: Economics, Volume 21, Number 1, January 2001" src="https://texashistory.unt.edu/ark:/67531/metapth1624335/thumbnail/"/></a></p><p>Newsletter of the Texas Agricultural Extension Service discussing topics related to economic aspects of raising dairy cows, dairy production, and managing dairy operations.</p>Balanced Dairying: Economics, Volume 15, Number 1, May 19952023-12-09T17:21:38-06:00https://texashistory.unt.edu/ark:/67531/metapth1624330/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1624330/"><img alt="Balanced Dairying: Economics, Volume 15, Number 1, May 1995" title="Balanced Dairying: Economics, Volume 15, Number 1, May 1995" src="https://texashistory.unt.edu/ark:/67531/metapth1624330/thumbnail/"/></a></p><p>Newsletter of the Texas Agricultural Extension Service discussing topics related to economic aspects of raising dairy cows, dairy production, and managing dairy operations.</p>Texas Pecan Pest Management Newsletter, Volume 93, Number 1, February 19932023-12-09T17:21:27-06:00https://texashistory.unt.edu/ark:/67531/metapth1624324/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1624324/"><img alt="Texas Pecan Pest Management Newsletter, Volume 93, Number 1, February 1993" title="Texas Pecan Pest Management Newsletter, Volume 93, Number 1, February 1993" src="https://texashistory.unt.edu/ark:/67531/metapth1624324/thumbnail/"/></a></p><p>Newsletter focusing on pecan disease and pest control in Texas, including prevention, identification, treatment, and educational opportunities.</p>Texas Pecan Pest Management Newsletter, Volume 94, Number 7, July 19942023-12-09T17:20:35-06:00https://texashistory.unt.edu/ark:/67531/metapth1624307/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1624307/"><img alt="Texas Pecan Pest Management Newsletter, Volume 94, Number 7, July 1994" title="Texas Pecan Pest Management Newsletter, Volume 94, Number 7, July 1994" src="https://texashistory.unt.edu/ark:/67531/metapth1624307/thumbnail/"/></a></p><p>Newsletter focusing on pecan disease and pest control in Texas, including prevention, identification, treatment, and educational opportunities.</p>Glasscock County, Texas: Records of wells, drillers' logs, and water analyses, and map showing location of wells2023-12-08T07:44:57-06:00https://texashistory.unt.edu/ark:/67531/metapth1623455/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1623455/"><img alt="Glasscock County, Texas: Records of wells, drillers' logs, and water analyses, and map showing location of wells" title="Glasscock County, Texas: Records of wells, drillers' logs, and water analyses, and map showing location of wells" src="https://texashistory.unt.edu/ark:/67531/metapth1623455/thumbnail/"/></a></p><p>Data complied regarding wells and other water resources, including water quality analysis, measurements, and other relevant information.</p>The Input Admittance of a Ring Circuit2023-11-05T07:39:24-06:00https://digital.library.unt.edu/ark:/67531/metadc1202065/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202065/"><img alt="The Input Admittance of a Ring Circuit" title="The Input Admittance of a Ring Circuit" src="https://digital.library.unt.edu/ark:/67531/metadc1202065/thumbnail/"/></a></p><p>"A ring circuit is a succession or two-port networks and at least one three-port network, each feeding the next at one port and the last feeding the first so that the sequence closes on itself leaving at least one input port. The input admittance is derived in terms ef various matrices describing the circuit for one- and two-input port rings."</p>Texas Register, Volume 48, Number 38, Pages 5197-5582, September 22, 20232023-11-03T12:38:05-05:00https://texashistory.unt.edu/ark:/67531/metapth1616548/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1616548/"><img alt="Texas Register, Volume 48, Number 38, Pages 5197-5582, September 22, 2023" title="Texas Register, Volume 48, Number 38, Pages 5197-5582, September 22, 2023" src="https://texashistory.unt.edu/ark:/67531/metapth1616548/thumbnail/"/></a></p><p>A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.</p>Texas Parks & Wildlife News, May 22, 19802023-08-19T06:22:07-05:00https://texashistory.unt.edu/ark:/67531/metapth1586914/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1586914/"><img alt="Texas Parks & Wildlife News, May 22, 1980" title="Texas Parks & Wildlife News, May 22, 1980" src="https://texashistory.unt.edu/ark:/67531/metapth1586914/thumbnail/"/></a></p><p>Weekly newsletter discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.</p>Internally Cooled Molten-Salt Reactors2023-07-09T17:44:26-05:00https://digital.library.unt.edu/ark:/67531/metadc1241042/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1241042/"><img alt="Internally Cooled Molten-Salt Reactors" title="Internally Cooled Molten-Salt Reactors" src="https://digital.library.unt.edu/ark:/67531/metadc1241042/thumbnail/"/></a></p><p>The initial and long-term nuclear characteristics of two internally cooled heterogeneous, graphite-moderated, two-region, molten-salt reactors have been studied. These reactors have doubling times of 22.5 years and 27.5 years. Methods of decreasing the doubling times by removing the Pa233 from the core and be increasing the specific power of the reactor are described.</p>Hexone Extraction-Coulometric Titration of Uranium2023-07-09T17:44:22-05:00https://digital.library.unt.edu/ark:/67531/metadc1241040/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1241040/"><img alt="Hexone Extraction-Coulometric Titration of Uranium" title="Hexone Extraction-Coulometric Titration of Uranium" src="https://digital.library.unt.edu/ark:/67531/metadc1241040/thumbnail/"/></a></p><p>Samples containing 5 to 10 mg of uranium were extracted with hexone (methyl isobutyl ketone) and titrated coulometrically in sulphate media. Relative standard deviations of 0.45% for samples containing 5 mg and 0.56% for 10 mg were determined by precision studies.</p>Report of Fire in Laboratory Hood, Wing I, Building 45002023-07-09T17:43:18-05:00https://digital.library.unt.edu/ark:/67531/metadc1241020/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1241020/"><img alt="Report of Fire in Laboratory Hood, Wing I, Building 4500" title="Report of Fire in Laboratory Hood, Wing I, Building 4500" src="https://digital.library.unt.edu/ark:/67531/metadc1241020/thumbnail/"/></a></p><p>The fire involved approximately 30 liters of isopropyl alcohol as a result of the ignition of about 16-18 liters of isopropyl alcohol and a slurry of thoria and ammonium nitrate in a 20-liter glass carboy. This material was undergoing a volume reduction by boiling in a floor-type metal hood with Plexiglas sides and 3 sliding door on the front of ordinary glass. The alcohol vapor was vents directly into the hood (Fig1.)</p>Preliminary Report on 2% U235-Enriched UF4-C25H52 Critical Assemblies2023-07-09T17:42:19-05:00https://digital.library.unt.edu/ark:/67531/metadc1241000/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1241000/"><img alt="Preliminary Report on 2% U235-Enriched UF4-C25H52 Critical Assemblies" title="Preliminary Report on 2% U235-Enriched UF4-C25H52 Critical Assemblies" src="https://digital.library.unt.edu/ark:/67531/metadc1241000/thumbnail/"/></a></p><p>A series of critical experiments with blocks of 2% U235-enriched UF4-C25H52 has been initiated at the ORNL Critical Experiments Facility. Thus far assemblies with H:U235 atomic ratios of 195 and 294 have been built in parallelepipedal and simulated cylindrical geometries, both reflected and unreflected. From the results the minimum critical masses for reflected spheres have been determined to be 16.3 and 8.5 kg of U235 for fuel mixtures with H:U235 atomic ratios of 195 and 294, respectively. The minimum critical masses for unreflected spheres of these two fuel mixtures are 24.3 and 12.7 kg of U235, respectively.</p>Newsletter of Texas State Representative Cecil Bell, Jr.: October 22, 20132023-05-04T08:06:12-05:00https://texashistory.unt.edu/ark:/67531/metapth1560245/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1560245/"><img alt="Newsletter of Texas State Representative Cecil Bell, Jr.: October 22, 2013" title="Newsletter of Texas State Representative Cecil Bell, Jr.: October 22, 2013" src="https://texashistory.unt.edu/ark:/67531/metapth1560245/thumbnail/"/></a></p><p>Newsletter of Cecil Bell, Jr. for his constituents in district 3 discussing news, activities, and various updates related to work in the Texas legislature. It focuses on the creation of the State Water Implementation Fund for Texas (SWIFT) and the State Water Implementation Revenue Fund for Texas (SWIRFT).</p>Focus Report, Volume 86, Number 6, December 22, 20202023-03-15T08:16:16-05:00https://texashistory.unt.edu/ark:/67531/metapth1543867/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1543867/"><img alt="Focus Report, Volume 86, Number 6, December 22, 2020" title="Focus Report, Volume 86, Number 6, December 22, 2020" src="https://texashistory.unt.edu/ark:/67531/metapth1543867/thumbnail/"/></a></p><p>Report focusing on regulations regarding the construction boom in Texas, including aggregate operations, air permits, regulation recommendations, and various proposals.</p>Bulletin on Texas State Finance: 1993, Number 12023-03-15T07:58:40-05:00https://texashistory.unt.edu/ark:/67531/metapth1543369/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1543369/"><img alt="Bulletin on Texas State Finance: 1993, Number 1" title="Bulletin on Texas State Finance: 1993, Number 1" src="https://texashistory.unt.edu/ark:/67531/metapth1543369/thumbnail/"/></a></p><p>Periodic bulletin analyzing issues related to Texas legislation. This issue focuses on property values.</p>You are invited to attend a birthday celebration!2023-03-08T07:31:36-06:00https://digital.library.unt.edu/ark:/67531/metadc2061549/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc2061549/"><img alt="You are invited to attend a birthday celebration!" title="You are invited to attend a birthday celebration!" src="https://digital.library.unt.edu/ark:/67531/metadc2061549/thumbnail/"/></a></p><p>An invitation to the NTSU documents department celebration marking 35 years as a federal depository library.</p>[Six Fighter Planes in Flight]2023-03-08T07:31:28-06:00https://digital.library.unt.edu/ark:/67531/metadc2061545/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc2061545/"><img alt="[Six Fighter Planes in Flight]" title="[Six Fighter Planes in Flight]" src="https://digital.library.unt.edu/ark:/67531/metadc2061545/thumbnail/"/></a></p><p>Photograph of six identical fighter planes flying in formation above snow-dusted mountains. The jets have "United States Air Force" written across the main part of the body and they have livery on the tails that includes scalloped red around the front edge and a Thunderbird logo surrounded by stars.</p>Annual Report of the Boy Scouts of America: 19612022-11-06T21:15:47-06:00https://texashistory.unt.edu/ark:/67531/metapth1519635/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1519635/"><img alt="Annual Report of the Boy Scouts of America: 1961" title="Annual Report of the Boy Scouts of America: 1961" src="https://texashistory.unt.edu/ark:/67531/metapth1519635/thumbnail/"/></a></p><p>Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1961, activities, public relations, finance, organizational leadership, and other information about scouting programs.</p>Annual Report of the Boy Scouts of America: 19552022-11-06T21:11:27-06:00https://texashistory.unt.edu/ark:/67531/metapth1519629/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1519629/"><img alt="Annual Report of the Boy Scouts of America: 1955" title="Annual Report of the Boy Scouts of America: 1955" src="https://texashistory.unt.edu/ark:/67531/metapth1519629/thumbnail/"/></a></p><p>Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1955, activities, organizational leadership, and other information about scouting programs.</p>Annual Report of the Boy Scouts of America: 19512022-11-06T21:10:15-06:00https://texashistory.unt.edu/ark:/67531/metapth1519625/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1519625/"><img alt="Annual Report of the Boy Scouts of America: 1951" title="Annual Report of the Boy Scouts of America: 1951" src="https://texashistory.unt.edu/ark:/67531/metapth1519625/thumbnail/"/></a></p><p>Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1951, activities, public relations, programming, finance, organizational leadership, and other information about scouting programs.</p>Annual Report of the Boy Scouts of America: 19482022-11-06T21:09:22-06:00https://texashistory.unt.edu/ark:/67531/metapth1519623/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1519623/"><img alt="Annual Report of the Boy Scouts of America: 1948" title="Annual Report of the Boy Scouts of America: 1948" src="https://texashistory.unt.edu/ark:/67531/metapth1519623/thumbnail/"/></a></p><p>Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1949, activities, organizational leadership, and other information about scouting programs.</p>Annual Report of the Boy Scouts of America: 19472022-11-06T21:09:18-06:00https://texashistory.unt.edu/ark:/67531/metapth1519622/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1519622/"><img alt="Annual Report of the Boy Scouts of America: 1947" title="Annual Report of the Boy Scouts of America: 1947" src="https://texashistory.unt.edu/ark:/67531/metapth1519622/thumbnail/"/></a></p><p>Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1947, activities, honors, finance. public relations, organizational leadership, and other information about scouting programs.</p>Annual Report of the Boy Scouts of America: 19272022-11-06T20:51:44-06:00https://texashistory.unt.edu/ark:/67531/metapth1519603/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1519603/"><img alt="Annual Report of the Boy Scouts of America: 1927" title="Annual Report of the Boy Scouts of America: 1927" src="https://texashistory.unt.edu/ark:/67531/metapth1519603/thumbnail/"/></a></p><p>Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1927, activities, ideals, organizational leadership, and other information about scouting programs.</p>Texas Register, Volume 47, Number 29, Pages 4207-4386, July 22, 20222022-09-12T18:31:30-05:00https://texashistory.unt.edu/ark:/67531/metapth1505771/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1505771/"><img alt="Texas Register, Volume 47, Number 29, Pages 4207-4386, July 22, 2022" title="Texas Register, Volume 47, Number 29, Pages 4207-4386, July 22, 2022" src="https://texashistory.unt.edu/ark:/67531/metapth1505771/thumbnail/"/></a></p><p>A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.</p>Pressure Drop Along a Fuel Cycle Fuel Assembly - Various Orifice Configurations2022-05-24T06:08:43-05:00https://digital.library.unt.edu/ark:/67531/metadc1257960/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1257960/"><img alt="Pressure Drop Along a Fuel Cycle Fuel Assembly - Various Orifice Configurations" title="Pressure Drop Along a Fuel Cycle Fuel Assembly - Various Orifice Configurations" src="https://digital.library.unt.edu/ark:/67531/metadc1257960/thumbnail/"/></a></p><p>The objective is to establish, from test results, the relationship between pressure loss and orifice configuration, mass rate, and steam quality, for a Fuel Cycle fuel assembly.</p>Pilot Plant Tests on Anaconda Ore From the Grants District, Grants, New Mexico2022-05-24T06:04:53-05:00https://digital.library.unt.edu/ark:/67531/metadc1257913/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1257913/"><img alt="Pilot Plant Tests on Anaconda Ore From the Grants District, Grants, New Mexico" title="Pilot Plant Tests on Anaconda Ore From the Grants District, Grants, New Mexico" src="https://digital.library.unt.edu/ark:/67531/metadc1257913/thumbnail/"/></a></p><p>A series of pilot plant runs were made on the Jackpile ore, Jackpile mixed blend, Jackpile-Poison Valley blend, and Jackpile-Arrowhead blend.</p>Recovery of Uranium From High Grade Australian Rum Jungle Uranium Ore2022-05-24T06:03:48-05:00https://digital.library.unt.edu/ark:/67531/metadc1257898/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1257898/"><img alt="Recovery of Uranium From High Grade Australian Rum Jungle Uranium Ore" title="Recovery of Uranium From High Grade Australian Rum Jungle Uranium Ore" src="https://digital.library.unt.edu/ark:/67531/metadc1257898/thumbnail/"/></a></p><p>The leaching behavior, thickening and filtering characteristics and recovery of uranium from high grade uranium ore from Rum Jungle, Northern Territory, Australia are described.</p>Texas Register, Volume 47, Number 16, Pages 2071-2376, April 22, 20222022-04-26T22:13:56-05:00https://texashistory.unt.edu/ark:/67531/metapth1462853/<p><a href="https://texashistory.unt.edu/ark:/67531/metapth1462853/"><img alt="Texas Register, Volume 47, Number 16, Pages 2071-2376, April 22, 2022" title="Texas Register, Volume 47, Number 16, Pages 2071-2376, April 22, 2022" src="https://texashistory.unt.edu/ark:/67531/metapth1462853/thumbnail/"/></a></p><p>A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.</p>Determination of Trivalent Uranium with Methylene Blue2022-02-06T09:35:22-06:00https://digital.library.unt.edu/ark:/67531/metadc1957014/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1957014/"><img alt="Determination of Trivalent Uranium with Methylene Blue" title="Determination of Trivalent Uranium with Methylene Blue" src="https://digital.library.unt.edu/ark:/67531/metadc1957014/thumbnail/"/></a></p><p>A direct titrimetric method for the determination of trivalent uranium in uranium trifluoride and mixtures of fused fluoride salts was developed. The method is based on the stoichiometric oxidation of trivalent uranium to the tetravalent oxidation state with an acidic solution of methylene blue. The sample containing trivalent uranium is dissolved at room temperature in an excess of standard methylene blue solution in a carbon dioxide atmosphere; the excess oxidant is variation of the method is 1.5 per cent for 5 mg quantities of trivalent uranium. The method was applied to various mixtures of fluoride salts containing both trivalent and tetravalent uranium.</p>The Influence of End Mirrors, High Density and Long Tube Length on Radial Diffusion2022-02-06T09:34:42-06:00https://digital.library.unt.edu/ark:/67531/metadc1957008/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1957008/"><img alt="The Influence of End Mirrors, High Density and Long Tube Length on Radial Diffusion" title="The Influence of End Mirrors, High Density and Long Tube Length on Radial Diffusion" src="https://digital.library.unt.edu/ark:/67531/metadc1957008/thumbnail/"/></a></p><p>Diffusion in an arc plasma across a magnetic field is investigated. The geometry is similar to that reported in ORNL-1890 but with the addition of magnetic mirrors on the ends of the arc chamber. It is shown that mirrors do not eliminate the "short circuit" effect. Comparison of the e-folding length, rₒ, of the radial ion density with and without mirrors, affords a direct measurement of ℓ/λ where ℓ is the arc length and λ the mean-free-path. In addition rₒ is independent of gas pressure with mirrors and varies as √p without mirrors. The condition for the elimination of the "short circuit" effect is discussed, as well as the case in which the "short circuit" is still present but the ions diffuse (rather than stream) to the end walls. In this case rₒ is directly proportional to the gas pressure. These effects are compared to some experimental results of Neidigh</p>Acceleration of Polarized Protons to Relativistic Energies2022-02-06T09:20:50-06:00https://digital.library.unt.edu/ark:/67531/metadc1256947/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1256947/"><img alt="Acceleration of Polarized Protons to Relativistic Energies" title="Acceleration of Polarized Protons to Relativistic Energies" src="https://digital.library.unt.edu/ark:/67531/metadc1256947/thumbnail/"/></a></p><p>Maintenance of polarization of polarized protons in a linear accelerator is known to be feasible. Circular accelerators present a different problem, and the investigation of the interaction of orbit dynamics and particle polarization in general is undertaken. The equation of motion of the spin vector of a charged particle in a magnetic field as formulated by Bargmann, Michel, and Telegdi is utilized in the study of depolarization for several accelerators. High values of depolarization are obtained, and means for avoiding such depolarization are suggested. (D.C.W.)</p>Non-destructive Testing Hanford Fuel2022-02-05T19:04:16-06:00https://digital.library.unt.edu/ark:/67531/metadc1255665/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255665/"><img alt="Non-destructive Testing Hanford Fuel" title="Non-destructive Testing Hanford Fuel" src="https://digital.library.unt.edu/ark:/67531/metadc1255665/thumbnail/"/></a></p><p>At present, emphasis is being given the application of nondestructive testing to the inspection of nuclear fuel in conjunction with complete product specifications. The objective is to quantitatively specify fuel quality parameters, and to measure the entire fuel production against these specifications nondestructively. Under this concept the acceptability of a given fuel element becomes a well-defined factor readily determined by appropriate nondestructive tests.</p>Density and Hydrogen Content of Uranium Oxide Cakes and Slurries2022-02-05T19:03:17-06:00https://digital.library.unt.edu/ark:/67531/metadc1255628/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255628/"><img alt="Density and Hydrogen Content of Uranium Oxide Cakes and Slurries" title="Density and Hydrogen Content of Uranium Oxide Cakes and Slurries" src="https://digital.library.unt.edu/ark:/67531/metadc1255628/thumbnail/"/></a></p><p>The work described was undertaken to provide data for nuclear safety studies concerning NPF reprocessing equipment. The original objective was to determine the uranium density and water (hydrogen) content of UO2-H2O mixtures ranging from compact centrifuge cakes to dilute slurries. The scope was later expanded to include mixtures of UO2 with hydrocarbon oil and mixtures of UO3-H2O.</p>Development of a Welding Process for End Closures on NPR and KER Fuel Element2022-02-05T19:02:53-06:00https://digital.library.unt.edu/ark:/67531/metadc1255613/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255613/"><img alt="Development of a Welding Process for End Closures on NPR and KER Fuel Element" title="Development of a Welding Process for End Closures on NPR and KER Fuel Element" src="https://digital.library.unt.edu/ark:/67531/metadc1255613/thumbnail/"/></a></p><p>With the development of the zircaloy-2 clad uranium fuel element, it was necessary to develop a method of closing the end of the element after the extruded tubes were cut to the desired length. Regardless of the ultimate design of the closure, a satisfactory zircaloy-2 fusion welding technique had to be worked out. The first fully successful welding was performed with electron beam welding in a vacuum chamber. To make satisfactory welds, the electron beam welding involved time and equipment, plus undue maintenance on the equipment.</p>The Approximation with Anisotropic Effects for Cylindrical Geometry2022-02-05T18:55:22-06:00https://digital.library.unt.edu/ark:/67531/metadc1255212/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255212/"><img alt="The Approximation with Anisotropic Effects for Cylindrical Geometry" title="The Approximation with Anisotropic Effects for Cylindrical Geometry" src="https://digital.library.unt.edu/ark:/67531/metadc1255212/thumbnail/"/></a></p><p>The method of spherical harmonic tensors developed Mark for solving the Boltzmann transport equation in isotropic media is herein extended to anisotropic media for cylindrical geometry. A formal solution is given for the case of two concentric cylindrical media, A and B, but no numerical work has yet been done. The following treatment differs from a similar one by the H. K. Ferguson Co. in that the external medium B is assumed to be both a neutron absorber and finite in extent rather than a non-absorber and infinite in extent.</p>Protection of Carbon Steel from Atmospheric Corrosion2022-02-05T18:53:57-06:00https://digital.library.unt.edu/ark:/67531/metadc1255159/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255159/"><img alt="Protection of Carbon Steel from Atmospheric Corrosion" title="Protection of Carbon Steel from Atmospheric Corrosion" src="https://digital.library.unt.edu/ark:/67531/metadc1255159/thumbnail/"/></a></p><p>The NPR design calls for carbon steel to be the major constituent in the reactor coolant piping system. The piping and its associated fittings will, in all likelihood, be exposed to atmospheric weather conditions during the period of reactor construction. This type of exposure causes rusting. From experience gained during the startup of KER Loop 1 it is expected that there will be initially high NPR coolant activity levels. The high activity during the startup of KER Loop 1 was partially caused by the activation of rust that was eroded from pipe walls. Prevention of rusting on the carbon steel prior to its introduction into the coolant system would reduce the initial activity levels.</p>Soil Column Studies with Radiostrontium I. Effects of Temperature and of Species of Accompanying Ion2022-02-05T18:53:10-06:00https://digital.library.unt.edu/ark:/67531/metadc1255140/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255140/"><img alt="Soil Column Studies with Radiostrontium I. Effects of Temperature and of Species of Accompanying Ion" title="Soil Column Studies with Radiostrontium I. Effects of Temperature and of Species of Accompanying Ion" src="https://digital.library.unt.edu/ark:/67531/metadc1255140/thumbnail/"/></a></p><p>Soil chemistry studies have been carried on at Hanford for a number of years in support of the disposal of low and intermediate level liquid wastes to the ground. Equilibrium type experiments were carried out to investigate the mechanisms of the reactions of Sr, Cs, and rare earth ions with soils (1, 3, 4, 5). Experiments were also conducted with simulated and actual wastes in soil columns and an empirical method was developed for prediction of radionuclide breakthrough from ground disposal facilities into ground water on the basis of short, laboratory soil columns and equilibrium experiments (6,7). In this method it is assumed that the shape and position of the breakthrough curve is the same under laboratory conditions as in the larger scale field case. It is also assumed that the "column volume" or amount of soil effectively used for fission product sorption is that directly under a disposal facility without considering any spreading of waste solutions. These assumptions are known to be on the conservative side, but the degree of conservativeness is not known.</p>3 Plant Radiation Study Interim Report #5- Part II Data on Gamma Shielding of Special Plutonium Samples2022-02-05T18:52:13-06:00https://digital.library.unt.edu/ark:/67531/metadc1255118/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255118/"><img alt="3 Plant Radiation Study Interim Report #5- Part II Data on Gamma Shielding of Special Plutonium Samples" title="3 Plant Radiation Study Interim Report #5- Part II Data on Gamma Shielding of Special Plutonium Samples" src="https://digital.library.unt.edu/ark:/67531/metadc1255118/thumbnail/"/></a></p><p>The calculation of shielding the thickness for plutonium is complicated by the many different energies represented in the gamma radiation emitted during decay of the plutonium isotopes. Dose rate predictions are also frequently confused by gamma from varying content of fission product impurities in the plutonium, as well as other gamma radiation induced through alpha and neutron particle absorption within the source material or its environment. After assumptions are made for these many factors the radiation data for shielding determination is still frequently inadequate because of wide variations in dose rates resulting from self-absorption. The degree if self-shielding is in turn dependent on nature of the plutonium compound, degree of compactness, weight, and over-all geometrical distribution of the source material. By preparing a variety of plutonium samples representing combinations of these varying factors, actual dose rates and gamma spectra, as obtained from them, can then be extrapolated for application to specific situations.</p>A Microspark Apparatus for the Study of Inclusions in Metals2022-02-05T18:51:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1255094/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255094/"><img alt="A Microspark Apparatus for the Study of Inclusions in Metals" title="A Microspark Apparatus for the Study of Inclusions in Metals" src="https://digital.library.unt.edu/ark:/67531/metadc1255094/thumbnail/"/></a></p><p>A study of metallurgical problems resulting from variation in grain boundaries, bonding layers, and inclusions in metals and alloys has become increasingly important over the past several years. To keep pace with and aid in these studies, several new techniques have been developed in emission and X-ray spectroscopy. In X-ray, areas as smalls as one square micron can be studied by making them targets for a focused electron beam and observing the X-rays emitted (5,2). Such an instrument would be quite helpful at Hanford, but the high original cost is prohibitive.</p>The Effect of Solution and Vessel Thermal Expansion on Volume Measurements in the Chemical Processing Department2022-02-05T18:50:51-06:00https://digital.library.unt.edu/ark:/67531/metadc1255064/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255064/"><img alt="The Effect of Solution and Vessel Thermal Expansion on Volume Measurements in the Chemical Processing Department" title="The Effect of Solution and Vessel Thermal Expansion on Volume Measurements in the Chemical Processing Department" src="https://digital.library.unt.edu/ark:/67531/metadc1255064/thumbnail/"/></a></p><p>The major portion of transfers and inventory in the Chemical Processing Department are dependent on volume measurement. Good volume measurements are therefore essential to good SS material control. Considerable attention has been given to the volume problem especially on primary transfer points. Document HW-57888 discusses the biasing effect pf temperature on manometer oil. HW- 57866 given the procedure for vessel calibration. Other undocumented correspondence has discussed recent calibrations and certain aspects of temperature considerations in the volume determinations. However, there is a need to document for future reference the consideration given temperature and provide at the same time information which covers the temperature angle on all volume methods used in the Chemical Processing Department.</p>Limitations for Existing Storage Tanks for Radioactive Wastes from Separations Plants2022-02-05T18:50:04-06:00https://digital.library.unt.edu/ark:/67531/metadc1255040/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255040/"><img alt="Limitations for Existing Storage Tanks for Radioactive Wastes from Separations Plants" title="Limitations for Existing Storage Tanks for Radioactive Wastes from Separations Plants" src="https://digital.library.unt.edu/ark:/67531/metadc1255040/thumbnail/"/></a></p><p>Continued process improvements in the separation plants provide an incentive for economics in waste storage costs by utilizing existing facilities to their maximum capability consistent with the radiological hazards involved. The major improvements have reduced waste volumes resulting in increased fission product concentration and energy potential. Analyses have been made to determine the effect of this change on the integrity of the existing structures.</p>Composition of Solids from Purex LWW2022-02-05T18:49:12-06:00https://digital.library.unt.edu/ark:/67531/metadc1255003/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255003/"><img alt="Composition of Solids from Purex LWW" title="Composition of Solids from Purex LWW" src="https://digital.library.unt.edu/ark:/67531/metadc1255003/thumbnail/"/></a></p><p>The solids in Purex lww were first observed during flowsheet tests for recovery of fission products from plant wastes. Since the nature of this solid was not apparent from the flowsheet composition of lww, some work was performed to characterize this material. Although this work has been conducted over a period of about one year, it has been subordinate to the main one of testing flowsheets for fission product recovery. The solids have been observed in each of about six samples of plant lww that have been studied, and the centrifuged volume of solids has been about four percent in each case.</p>Beam Separators for Bev Particles2022-02-05T09:56:29-06:00https://digital.library.unt.edu/ark:/67531/metadc1255836/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255836/"><img alt="Beam Separators for Bev Particles" title="Beam Separators for Bev Particles" src="https://digital.library.unt.edu/ark:/67531/metadc1255836/thumbnail/"/></a></p><p>The problem of separation of beams of particles of different masses but of the same momentum at Bev energies is the subject of a great deal of study at several high energy laboratories. In this note we shall describe the problem and tabulate a few of the cogent parameters. Frequently the student of high energy interactions is faced with a beam of miscellaneous particles coming from an accelerator. By standard techniques this beam can be rendered approximately parallel and an inch or so in diameter. By passage through a magnetic field the beam can be analyzed in momentum. Now it frequently happens that the particles in which the experimenter is particularly interested make up only a small fraction of the beam and the exigencies of the proposed experiment may well demand that the background of undesired particles be drastically reduced. The problem is difficult because the velocities of the various particles are almost equal to each other and to the velocity of lights; this makes time-of-flight techniques relatively ineffective. The energies of the particles are almost equal so electrostatic separation also is difficult. Since the beam is already analyzed in momentum, further separation by magnetic means is impossible.</p>Summary of Research Progress Meetings of October2 and October 9, 19522022-02-05T09:51:51-06:00https://digital.library.unt.edu/ark:/67531/metadc1255512/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1255512/"><img alt="Summary of Research Progress Meetings of October2 and October 9, 1952" title="Summary of Research Progress Meetings of October2 and October 9, 1952" src="https://digital.library.unt.edu/ark:/67531/metadc1255512/thumbnail/"/></a></p><p>Summary of research progress meetings of October 2 and October 9, 1952: High speed high vacuum ion pump, High energy ion irradiation, Space charge accelerator for protons, Availability of the [ ] meson beam at the cyclatron, Effect of chemical structure on stopping powers for high energy protons.</p>Nine-Channel Polychromator For Observation Of Time-Dependent Spectral Line Profiles2022-02-05T09:50:29-06:00https://digital.library.unt.edu/ark:/67531/metadc1254683/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1254683/"><img alt="Nine-Channel Polychromator For Observation Of Time-Dependent Spectral Line Profiles" title="Nine-Channel Polychromator For Observation Of Time-Dependent Spectral Line Profiles" src="https://digital.library.unt.edu/ark:/67531/metadc1254683/thumbnail/"/></a></p><p>The instrument (polychromator) described observes time-dependent spectral-line profiles by simultaneous measurement at nine different wavelengths of light intensity as a function of time. A cylindrical lens magnifies the dispersion of a Jarrell-Ash Model S2000 Ebert Monochromator and forms an image on a light-pipe solder. Light pipes transfer light from various sections of the image--i.e., different wavelengths--to photomultiplier tubes, and the responses are displayed on oscilloscopes. The instrument has been used to look at total wavelength spans of 15 A and 20 A.</p>On the Annealing and Aging of Zircaloy-3b2021-12-18T19:09:10-06:00https://digital.library.unt.edu/ark:/67531/metadc1254168/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1254168/"><img alt="On the Annealing and Aging of Zircaloy-3b" title="On the Annealing and Aging of Zircaloy-3b" src="https://digital.library.unt.edu/ark:/67531/metadc1254168/thumbnail/"/></a></p><p>The object of this study was to determine the effects of several annealing treatments and aging treatments on the tensile test behavior of Zircaloy-3b.</p>