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Acute and chronic toxicity of uranium compounds to Ceriodaphnia-Daphnia dubia
A study to determine the acute and chronic toxicity of uranyl nitrate, hydrogen uranyl phosphate, and uranium dioxide to the organism Ceriodaphnia dubia was conducted. The toxicity tests were conducted by two independent environmental consulting laboratories. Part of the emphasis for this determination was based on concerns expressed by SCDHEC, which was concerned that a safety factor of 100 must be applied to the previous 1986 acute toxicity result of 0.22 mg/L for Daphnia pulex, This would have resulted in the LETF release limits being based on an instream concentration of 0.0022 mg/L uranium. The NPDES Permit renewal application to SCDHEC utilized the results of this study and recommended that the LETF release limit for uranium be based an instream concentration of 0.004 mg/L uranium. This is based on the fact that the uranium releases from the M-Area LETF will be in the hydrogen uranyl phosphate form, or a uranyl phosphate complex at the pH (6--10) of the Liquid Effluent Treatment Facility effluent stream, and at the pH of the receiving stream (5.5 to 7.0). Based on the chronic toxicity of hydrogen uranyl phosphate, a lower uranium concentration limit for the Liquid Effluent Treatment Facility outfall vs. the existing NPDES …
Date:
March 31, 1993
Creator:
Pickett, J. B.; Specht, W. L. & Keyes, J. L.
Object Type:
Report
System:
The UNT Digital Library
The Allen American (Allen, Tex.), Vol. 23, No. 129, Ed. 1 Wednesday, March 31, 1993
Semiweekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
Epperson, Wayne
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 93, No. 15, Ed. 1 Wednesday, March 31, 1993
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, March 31, 1993
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 71, No. 130, Ed. 1 Wednesday, March 31, 1993
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 89, No. 16, Ed. 1 Wednesday, March 31, 1993
Weekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
Tuma, David & Priddy, Travis
Object Type:
Newspaper
System:
The Portal to Texas History
Chickasha Daily Express (Chickasha, Okla.), Vol. 102, No. 17, Ed. 1 Wednesday, March 31, 1993
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
Plummer, George
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 98, No. 13, Ed. 1 Wednesday, March 31, 1993
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Collegian (Hurst, Tex.), Vol. 5, No. 21, Ed. 1 Wednesday, March 31, 1993
Weekly student newspaper published in Hurst, Texas serving the Tarrant County Junior College District that includes school news and information along with advertising.
Date:
March 31, 1993
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Colony Leader (The Colony, Tex.), Vol. 11, No. 19, Ed. 1 Wednesday, March 31, 1993
Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
Epperson, Wayne
Object Type:
Newspaper
System:
The Portal to Texas History
The Cuero Record (Cuero, Tex.), Vol. 97, No. 13, Ed. 1 Wednesday, March 31, 1993
Weekly newspaper from Cuero, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Duval County Picture (San Diego, Tex.), Vol. 8, No. 13, Ed. 1 Wednesday, March 31, 1993
Weekly newspaper from San Diego, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
Cardenas, Alfredo E.
Object Type:
Newspaper
System:
The Portal to Texas History
[The Economic Imperative: A Look Into the Future]
Sound recording of Dr. M. Ray Perryman's seminar, "The Economic Imperative: A Look Into the Future," part of the Texas Association of Museums' annual meeting held in Waco from March 31-April 3, 1993.
Date:
[1993-03-31,1993-04-03]
Creator:
Hays, Margaret Parx
Object Type:
Sound
System:
The UNT Digital Library
Equilibrium and volumetric data and model development for coal fluids. [Quarterly report], January 1, 1993-March 31, 1993
During the present reporting period, the solubilities of hydrogen in naphthalene, phenanthrene and pyrene were measured at temperatures from 373.2 to 433.2 K (212.0 to 320.0 {degrees}F) and pressures to 21.7 MPa (3,147 psia). These data are described with root-mean-square (RMS) errors typically less than 0.001 in mole fraction by the Soave-Redlich-Kwong and Peng-Robinson equations of state when a single interaction parameter, C{sub ij}, is used for each isotherm.
Date:
March 31, 1993
Creator:
Robinson, R. L. Jr. & Gasem, K. A. M.
Object Type:
Report
System:
The UNT Digital Library
Financial statistics of major publicly owned electric utilities, 1991
The Financial Statistics of Major Publicly Owned Electric Utilities publication presents summary and detailed financial accounting data on the publicly owned electric utilities. The objective of the publication is to provide Federal and State governments, industry, and the general public with data that can be used for policymaking and decisionmaking purposes relating to publicly owned electric utility issues.
Date:
March 31, 1993
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
A finite element formulation and adaptive solution approach for large-scale thermomechanical problems with complex contact conditions
Traditional thermal stress analysis is based on an uncoupled approach in which the thermal problem is solved on a fixed geometry, and the resulting temperatures are then used to load a mechanical problem. In contrast, a fully coupled thermomechanical analysis solves the thermal problem on the deforming geometry and incorporates thermal loads into the mechanical problem. Thermal contact, in which heat flow paths depend on the mechanical deformations of adjacent surfaces, is a major component of many fully coupled thermomechanical analyses. This paper describes the development of a Lagrangian finite element thermomechanical contact methodology. The paper focuses on the formulation and implementation of thermal contact in two dimensions. The proposed approach accommodates arbitrarily large relative motions of contact surfaces, fully unstructured meshes, pressure-dependent contact resistance, conduction across small gaps, and approximate models for convection and radiation. The proposed thermal contact formulation has been implemented in the Lawrence Livermore National Laboratory public code PALM2D and has been used to solve a diverse set of thermomechanical problems. Examples frustrating the performance of this code on large deformation thermomechanical problems are presented and discussed.
Date:
March 31, 1993
Creator:
Engelmann, B. E.; Whirley, R. G. & Raboin, P. J.
Object Type:
Article
System:
The UNT Digital Library
[Funeral Program for John Joseph Rector, Sr., March 31, 1993
Funeral program for The Reverend Doctor John Joseph Rector, Sr., born February 17, 1931 and died March 25, 1993. The funeral was held Wednesday, March 31, 1993 at Antioch Missionary Baptist Church, officiated by Pastor E. Thurman Walker. Funeral arrangements were made through Lewis Funeral Home and he was buried in Meadowlawn Memorial Park in San Antonio, Texas. Includes newspaper clipping.
Date:
March 31, 1993
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History
[Funeral Program for The Reverend Doctor John Joseph Rector, Sr., March 31, 1993]
Funeral program for The Reverend Doctor John Joseph Rector, Sr., born February 17, 1931 and died March 25, 1993. The funeral was held March 31, 1993 at Antioch Missionary Baptist Church, officiated by Pastor E. Thurman Walker. Funeral arrangements were made through the Lewis Funeral Home and he was buried in Meadowlawn Memorial Park in San Antonio, Texas.
Date:
March 31, 1993
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History
Hydrodynamic instability modeling for ICF
The intent of this paper is to review how instability growth is modeled in ICF targets, and to identify the principal issues. Most of the material has been published previously, but is not familiar to a wide audience. Hydrodynamic instabilities are a key issue in ICF. Along with laser-plasma instabilities, they determine the regime in which ignition is possible. At higher laser energies, the same issues determine the achievable gain. Quantitative predictions are therefore of the utmost importance to planning the ICF program, as well as to understanding current Nova results. The key fact that underlies all this work is the stabilization of short wavelengths.
Date:
March 31, 1993
Creator:
Haan, S. W.
Object Type:
Article
System:
The UNT Digital Library
[Letter from Ricardo Hernandez to D. Jack Davis, March 31, 1993]
A letter from Ricardo Hernandez to D. Jack Davis, a co-director of the NTIEVA program. The letter is about the funding application to the TCA and includes a list of applicants and their information.
Date:
March 31, 1993
Creator:
Hernandez, Ricardo
Object Type:
Letter
System:
The UNT Digital Library
Levelland and Hockley County News-Press (Levelland, Tex.), Vol. 14, No. 101, Ed. 1 Wednesday, March 31, 1993
Semiweekly newspaper from Levelland, Texas that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Mannford Eagle (Mannford, Okla.), Vol. 13, No. 5, Ed. 1 Wednesday, March 31, 1993
Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 31, 1993
Creator:
Jones, Fred R.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Mapping and sequencing the human genome: Science, ethics, and public policy. Final report
Development of Mapping and Sequencing the Human Genome: Science, Ethics, and Public Policy followed the standard process of curriculum development at the Biological Sciences Curriculum Study (BSCS), the process is described. The production of this module was a collaborative effort between BSCS and the American Medical Association (AMA). Appendix A contains a copy of the module. Copies of reports sent to the Department of Energy (DOE) during the development process are contained in Appendix B; all reports should be on file at DOE. Appendix B also contains copies of status reports submitted to the BSCS Board of Directors.
Date:
March 31, 1993
Creator:
McInerney, J. D.
Object Type:
Report
System:
The UNT Digital Library
[Marketing for Tourism and Museums: A Natural Collaboration]
Sound cassette titled "Marketing for Tourism and Museums: A Natural Collaboration."
Date:
1993-03-31/1993-04-03
Creator:
Reliable Communications
Object Type:
Sound
System:
The UNT Digital Library