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Palladium Catalyzed Coupling Reactions: Mechanism of Reductive Elimination. Progress Report, October 1, 1979-September 30, 1980. [Ethane Elimination]

Description: The 1,1-reductive elimination of ethane from three cis-bis(phosphine)-dimethylpalladium complexes, L/sub 2/Pd(CH/sub 3/)/sub 2/ (L = PPh/sub 3/, PPh/sub 2/,CH/sub 3/ and L/sub 2/ = Ph/sub 2/PCH/sub 2/CH/sub 2/PPh/sub 2/), and three trans analogs (L = PPh/sub 3/, PPh/sub 2/CH/sub 3/ and L/sub 2/ = 2,11-bis(diphenylphosphinomethyl)benzo(c)phenanthrene (TRANSPHOS)) was carried out. The three cis complexes underwent reductive elimination in the presence of coordinating solvents (DMSO, DMF, and THF)… more
Date: September 1, 1980
Creator: Stille, J. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Planetary-Wave Behavior and Arctic Air Pollution

Description: An attempt was made to relate episodes of air pollution at Barrow, Alaska, containing vanadium, to the behavior of planetary waves in middle and high latitudes. A stationarity index for planetary waves is defined as the ratio between amplitudes computed from monthly mean maps and the mean amplitudes computed on a daily basis and averaged over the same month, irrespective of phase angle. Longitude-time sections of 500-mb height anomalies at various latitudes are related to vanadium pollution epi… more
Date: January 1, 1979
Creator: Reiter, Elmar R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Rio Blanco Massive Hydraulic Fracture: Project Definition

Description: The Piceance Basin in Colorado contains an estimated 600 trillion cu ft of natural gas in place. Both the Rulison and Rio Blanco events have been detonated to determine the feasibility of nuclear fracturing to stimulate natural gas production in this basin. A demonstration program to test the relative effectiveness of massive hydraulic fracturing (MHF) to achieve natural gas production stimulation from the same gas reservoir is presented. Details are included on MHF design parameters, including… more
Date: 1973~
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Colorado: basic data for thermal springs and wells as recorded in GEOTHERM

Description: GEOTHERM sample file contains 225 records for Colorado. Three computer-generated indexes are found in appendices A, B, and C of this report. The indexes give one line summaries of each GEOTHERM record describing the chemistry of geothermal springs and wells in the sample file for Colorado. Each index is sorted by different variables to assist the user in locating geothermal records describing specific sites. Appendix A is sorted by the county name and the name of the source. Also given are lati… more
Date: May 1, 1983
Creator: Bliss, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Steady-State Thermomechanical Finite Element Analysis of Elastoviscoplastic Metal Forming Processes

Description: Extrusion and rolling processes exhibiting large amounts of plastic flow are analyzed using a finite element technique that is based on a modified creeping viscous flow approximation. The technique, called the initial stress-rate method, iteratively corrects creeping viscous flow solutions to generate results that include elastic response. The momentum equations have been coupled with the energy equation to provide the capability to predict thermomechanical response during forming operations.
Date: January 1, 1977
Creator: Dawson, P.R. & Thompson, E.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Novel Concepts in Electrochemical Solar Cells. Third Quarterly Progress Report, November 15, 1979-January 15, 1980. [Molten Salt Electrolytes]

Description: Efforts have been primarily directed toward evaluation of the room temperature molten salt electrolyte in terms of its overall performance for photovoltaic cells. Mass transport processes may prove to be the rate-limiting factor for such electrolytes, unless the concentration of the photo-active redox component can be increased and the solvent viscosity reduced. Acid-base surface chemistry of n-GaAs as occurs in aqueous systems, has been found present and its consequences will be further explor… more
Date: January 1, 1980
Creator: DuBow, J.; Job, R. & Krishnan, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Diosmacycloalkanes as models for the formation of hydrocarbons from surface methylenes

Description: We are making progress on our investigation of the mechanism of olefin exchange with Os{sub 2}(C{sub 2}H{sub 4})(CO){sub 8}. We are probing this system by kinetic study of the reaction of Os{sub 2}(C{sub 2}H{sub 4})(CO){sub 8} with butyl acrylate (BA) under various pressures of ethylene.
Date: May 1, 1992
Creator: Norton, J.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Societal Impacts Program (SIP)

Description: This is the website for the Societal Impacts Program (SIP), located within the National Center for Atmospheric Research (NCAR). The SIP's overarching goal is to help society benefit from current and emerging forecasting capabilities by integrating social science into weather research and applications through cutting-edge research and capacity building. The website includes information about the SIP's research projects and publications.
Date: 2013
Creator: National Center for Atmospheric Research (U.S.)
Item Type: Refine your search to only Website
Partner: UNT Libraries Digital Projects Unit
open access

Candidate Recommendation INT-0013

Description: Public Document - Recommendation to realign Counterintelligence Field Activity in Colorado Springs, CO., to Peterson AFB, CO.
Date: August 2, 2005
Creator: United States. Department of Defense.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department

Life with a Superhero: Raising Michael Who Has Down Syndrome

Description: Over twenty years ago, in a small Israeli town, a desperate mother told a remarkable lie. She told her friends and family that her newborn child had died. That lie became the catalyst for the unfolding truth of the adoption of that same baby—Michael —who is, in fact, very much alive and now twenty-two years old. He also has Down syndrome. When Kathryn Hulings adopted Michael as an infant, she could not have known that he would save her life when she became gravely ill and was left forever physi… more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: July 15, 2013
Creator: Hulings, Kathryn U.
Item Type: Refine your search to only Book
Partner: UNT Press
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