Collection
Office of Scientific & Technical Information Technical Reports
316
Congressional Research Service Reports
157
Texas Laws and Resolutions Archive
79
Texas Patents
57
Texas Attorney General Opinions
53
Government Accountability Office Reports
50
Technical Report Archive and Image Library
28
TRAIL Microcard Collection
13
National Advisory Committee for Aeronautics Collection
11
Texas Register
10
8 More
Country
States
777 Matching Results
Results open in a new window/tab.
prev
Results:
769 - 777 of
777
Waste characterization of the 101-SY hydrogen mitigation mixing pump shipping container
The Hydrogen Mitigation Mixing Pump (HMMP) in Tank 241-SY-101 will need to be removed at some point. At that time, the HMMP will be placed in a shipping container and transferred to a designated onsite location depending on waste classification. This report shows how the radioactive material content of shipping container will be determined. Once the radioactive material loading is known, the waste classification of the container may be determined in accordance with established procedures.
Date:
May 19, 1995
Creator:
Gedeon, S.R.
Object Type:
Report
System:
The UNT Digital Library
Waste retrieval sluicing system vapor sampling and analysis plan for evaluation of organic emissions, process test phase III.
This sampling and analysis plan identifies characterization objectives pertaining to sample collection, laboratory analytical evaluation, and reporting requirements for vapor samples obtained to address vapor issues related to the sluicing of tank 241-C-106. Sampling will be performed in accordance with Waste Retrieval Sluicing System Emissions Collection Phase III (Jones 1999) and Process Test Plan Phase III, Waste Retrieval Sluicing System Emissions Collection (Powers 1999). Analytical requirements include those specified in Request for Ecology Concurrence on Draft Strategy/Path Forward to Address Concerns Regarding Organic Emissions from C-106 Sluicing Activities (Peterson 1998). The Waste Retrieval Sluicing System was installed to retrieve and transfer high-heat sludge from tank 241-C-106 to tank 241-AY-102, which is designed for high-heat waste storage. During initial sluicing of tank 241-C-106 in November 1998, operations were halted due to detection of unexpected high volatile organic compounds in emissions that exceeded regulatory permit limits. Several workers also reported smelling sharp odors and throat irritation. Vapor grab samples from the 296-C-006 ventilation system were taken as soon as possible after detection; the analyses indicated that volatile and semi-volatile organic compounds were present. In December 1998, a process test (phase I) was conducted in which the pumps in tanks 241-C-106 and 241-AY-102 …
Date:
May 19, 1999
Creator:
Sasaki, L. M.
Object Type:
Report
System:
The UNT Digital Library
Wave heating models for ion-cyclotron heating in EBT-S
Wave heating of ELMO BUMPY TORUS-SCALE (EBT-S) in the ion-cyclotron range of frequencies will be strongly influenced by the geometry of the plasma. In particular, the short finite length of the mirror sections means that the electron bounce frequency is of comparable magnitude to the ion-cyclotron frequency. Consequently, the bouncing motion of trapped particles impacts the electron absorption of wave energy. Furthermore, the varying magnetic field strength along magnetic field lines influences the ion-cyclotron absorption of waves because the ion-cyclotron resonance conditions are satisfied only at discrete points along the field lines. Expressions are given for trapped and passing electron absorption as well as ion-cyclotron absorption. A numerical example is also discussed.
Date:
May 19, 1980
Creator:
Sperling, J. L.
Object Type:
Report
System:
The UNT Digital Library
Weldability of Hayes Alloy #25
Technical report describing the process to determine the fusion welding characteristics of Haynes Alloy #25 as applied to TLJ-100530, Corrosion Loops. Hayes Stellite Alloy #25 is a cobalt-base alloy for corrosion resistant high temperature applications. This material, when welded by the inert gas shielded tungsten arc method, produces sound ductile joints. Material thicknesses greater than 12 gauge require standard joint preparations, a V joint being preferred up to 1/4 inch and a U joint for greater thicknesses. Welding heat should be kept to a minimum followed by fast cooling. The molten metal is very fluid and may present difficulties when position welding.
Date:
May 19, 1959
Creator:
Rogers, S. L.
Object Type:
Report
System:
The UNT Digital Library
Well-Drilling Machinery
Patent for a well drilling machine. Illustrations included.
Date:
May 19, 1908
Creator:
Decker, Harry R.
Object Type:
Patent
System:
The Portal to Texas History
Western Water Resource Issues
For more than a century, the federal government has constructed water resource projects for a variety of purposes including flood control, navigation, power generation, and irrigation. While most municipal and industrial water supplies have been built by non-federal entities, most of the large, federal water supply projects in the West, including Hoover and Grand Coulee dams, were constructed by the Bureau of Reclamation (Department of the Interior) to provide water for irrigation.
Date:
May 19, 2005
Creator:
Cody, Betsy A. & Sheikh, Pervaze A.
Object Type:
Report
System:
The UNT Digital Library
Wet Oxidation of High-Al-Content III-V Semiconductors: Important Materials Considerations for Device Applications
Wet oxidation of high-Al-content AIGaAs semiconductor layers in vertical cavity surface emitting lasers (VCSELS) has produced devices with record low threshold currents and voltages and with wall-plug efficiencies greater than 50%. Wet oxidation of buried AlGaAs layers has been employed to reduce the problems associated with substrate current leakage in GaAs-on- insulator (GOI) MESFETS. Wet oxidation of high-Al-content AlGaAs semiconductor layers in vertical cavity surface emitting lasers (VCSELS) has produced devices with record low threshold currents and voltages and with wall-plug efficiencies greater than 50%. Wet oxidation of buried AlGaAs layers has been employed to reduce the problems associated with substrate current leakage in GaAs-on- insulator (GOI) MESFETS. Wet oxidation has also been considered as a route to the long-sought goal of a IH-V MIS technology. To continue improving device designs for even higher performance and to establish a truly manufacturable technology based on wet oxidation, the effect of oxidation of a given layer on the properties of the entire device structure must be understood. The oxidation of a given layer can strongly affect the electrical and chemical properties of adjacent layers. Many of these effects are derived from the production of large amounts of elemental As during the oxidation …
Date:
May 19, 1999
Creator:
Ashby, Carol I.H.
Object Type:
Article
System:
The UNT Digital Library
Wind-tunnel investigation at low speed to determine aerodynamic properties of a jettisonable nose section with circular cross section
Report presenting the aerodynamic properties of a model of a jettisonable nose section with a circular cross section as determined at low speed from an investigation in the 20-foot free-spinning tunnel. The results indicated that the aerodynamic characteristics of the nose were greatly affected by proximity to the fuselage. Even for a stabilized nose, it may be necessary to eject the nose forward forcibly in order to prevent high accelerations along the backbone of the pilot.
Date:
May 19, 1950
Creator:
Goodwin, Roscoe H.
Object Type:
Report
System:
The UNT Digital Library
Year 2000 Computing Crisis: Readiness of the Oil and Gas Industries
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO identified the oil and gas power industries' vulnerability to year 2000 problems and the reported status of their year 2000 readiness."
Date:
May 19, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library