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ABSOLUTE ASYMMETRIC SYNTHESIS. I. ON THE MECHANISM OF THEPHOTOCHEMICAL ABSOLUTE ASYMMETRIC SYNTHESIS OF HELICENES WITH CIRCULARLYPOLARIZED LIGHT. . WAVELENGTH DEPENDENCE OF THE OPTICAL YIELD OFOCTAHELICENE.
The synthesis of nonracemic yields of hexa-, hepta-, octa-, and nonhelicene with circular light was observed, and the structural and wavelength dependence of the induced optical yields was examined. The results obtained, together with a detailed consideration of the mechanism of helicene synthesis from the parent diarylolefins, indicate that the induced optical activity is due to selective reaction of enantiomeric conformations of the parent cis diarylolefins by circular light.
Date:
May 1, 1971
Creator:
Bernstein, William J.; Calvin, Melvin & Buchardt, Ole.
Object Type:
Article
System:
The UNT Digital Library
Accounting for Common Stockholders an Electric Decision Making and Motivational Foundation
Essay outlining a behavioral model in regard to accounting for common stockholders.
Date:
May 1971
Creator:
Gonedes, Nicholas J & Blackstock, Graham
Object Type:
Book
System:
The Portal to Texas History
Aft Support Machined From Titanium.
None
Date:
May 1, 1971
Creator:
Robb, J. M.
Object Type:
Report
System:
The UNT Digital Library
The Beggs MMD Test for Determining the Shelf Life of Film Adhesive.
None
Date:
May 1, 1971
Creator:
Camp, C. J. & Beggs, R. L.
Object Type:
Report
System:
The UNT Digital Library
Comparison of the Fluted Valve and Orifice Plate Plugging Meters.
None
Date:
May 1971
Creator:
Meadows, G. E.
Object Type:
Report
System:
The UNT Digital Library
Core Test Reactor Shield Cooling System Analysis
System requirements for cooling the shield within the vacuum vessel for the core test reactor are analyzed. The total heat to be removed by the coolant system is < 22,700 Btu/hr, with an additional 4600 Btu/hr to be removed by the 2-inch thick steel plate below the shield. This latter heat is radiated to the walls of the vacuum chamber where the heat is removed by the cooling coils wrapped around the outside of the chamber. The maximum temperature of the concrete in the shield can be kept below 200°F if the shield plug walls are kept below 160°F. The walls of the two "donut" shaped shield segments, which are cooled by the water from the shield and vessel cooling system, should operate below 95°F. The walls of the center plug, which are cooled with nitrogen, should operate below 100°F.
Date:
May 1, 1971
Creator:
Larson, E.M. & Elliott, R.D.
Object Type:
Report
System:
The UNT Digital Library
The Cross Section, Volume 17, Number 5, May 1971
Monthly newsletter of the High Plains Underground Water Conservation District No. 1, discussing the field of underground water. Topics include profiles of water conservation research, annual pre-plant soil moisture survey data, annual Winter Water Level measurement data, and information about the latest water conservation tips.
Date:
May 1971
Creator:
High Plains Underground Water Conservation District No. 1 (Tex.)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Description of Various Methods of Preparing Polyamic Acids and Polyimides.
None
Date:
May 1, 1971
Creator:
Johnson, E. L.; Daly, J. C. & Ansley, D. R.
Object Type:
Report
System:
The UNT Digital Library
Effects of Manufacturing Variables and the Development of Replaceable Membrane Elements for Brackish Water Tubular Reverse Osmosis Systems
Report describing the development of a reliable means to cast brackish water desalination membranes, the quality control of membrane-support elements, and the development of replaceable membrane elements.
Date:
May 1971
Creator:
Blevitt, R.; Hartupee, R. H. & Marks, M.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of Commercial Polyaryl Polyisocyanates in a Bendix Kansas City Foam System
Determines whether commercially available polyaryl polyisocyanates would be suitable alternates for Upjohn's PAPI.
Date:
May 1, 1971
Creator:
Salary, J.
Object Type:
Report
System:
The UNT Digital Library
Hydrogen embrittlement of irradiated alloys
None
Date:
May 1, 1971
Creator:
Miles, J.K. & Burtnett, R.L.
Object Type:
Report
System:
The UNT Digital Library
Improved body-wave magnitudes of Aleutian earthquakes
None
Date:
May 1, 1971
Creator:
Tarr, A.C.
Object Type:
Report
System:
The UNT Digital Library
Improved Zirconium Decontamination in Purex Process.
None
Date:
May 1, 1971
Creator:
Swanson, J. L.
Object Type:
Report
System:
The UNT Digital Library
Introduction to SPEAKEASY
SPEAKEASY is a computer language designed for scientists. This document is primarily an introduction to that language, but it also serves as a reference manual for the version currently available for IBM-360 series computers. The specific control cards needed to run jobs at the Argonne installation are described. The report contains two major sections. The first is a detailed description of the basic language. The last section of the report is an illustration of the use of the language in the form of an actual computer run.
Date:
May 1, 1971
Creator:
Cohen, S. & Vincent, C. M.
Object Type:
Report
System:
The UNT Digital Library
Inventories of Irrigation in Texas 1958, 1964, and 1969
Report on the inventories of Texas irrigation waters from 1958, 1964, and 1969.
Date:
May 1971
Creator:
Texas Water Development Board
Object Type:
Report
System:
The Portal to Texas History
JOSHUA System. Vol. 5. Basic data processing
None
Date:
May 1, 1971
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Nozzle Assembly Design Status Review
None
Date:
May 1971
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
NUCLEAR CHEMISTRY ANNUAL REPORT 1970
Papers are presented for the following topics: (1) Nuclear Structure and Nuclear Properties - (a) Nuclear Spectroscopy and Radioactivity; (b) Nuclear Reactions and Scattering; (c) Nuclear Theory; and (d) Fission. (2) Chemical and Atomic Physics - (a) Atomic and Molecular Spectroscopy; and (b) Hyperfine Interactions. (3) Physical, Inorganic, and Analytical Chemistry - (a) X-Ray Crystallography; (b) Physical and Inorganic Chemistry; (c) Radiation Chemistry; and (d) Chemical Engineering. (4) Instrumentation and Systems Development.
Date:
May 1, 1971
Creator:
Authors, Various
Object Type:
Report
System:
The UNT Digital Library
Nuclear shuttle system definition study. Phase III. Final report. Volume II. Concept and feasibility analysis. Part A. Class 1 hybrid RNS. Book 1. System analysis and operations
None
Date:
May 1, 1971
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Nuclear shuttle system definition study. Phase III. Final report. Volume II. Concept and feasibility analysis. Part A. Class 1 hybrid RNS. Book 2. System definition
None
Date:
May 1, 1971
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Nuclear shuttle system definition study. Phase III. Final report. Volume II. Concept and feasibility analysis. Part B. Class 3 RNS. Book 1. System analysis and operations
None
Date:
May 1, 1971
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Nuclear shuttle system definition study. Phase III. Final report. Volume II. Concept and feasibility analysis. Part B. Class 3 RNS. Book 2. System definition
None
Date:
May 1, 1971
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Nuclear shuttle system definition study. Phase III. Final report. Volume III. Program support requirements. Part A. Class 1 hybrid RNS
None
Date:
May 1, 1971
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Nuclear shuttle system definition study. Phase III. Final report. Volume III. Program support requirements. Part B. Class 3 RNS
None
Date:
May 1, 1971
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library