79 Matching Results

Search Results

Results: 1 - 24 next
open access

ABSOLUTE ASYMMETRIC SYNTHESIS. I. ON THE MECHANISM OF THEPHOTOCHEMICAL ABSOLUTE ASYMMETRIC SYNTHESIS OF HELICENES WITH CIRCULARLYPOLARIZED LIGHT. . WAVELENGTH DEPENDENCE OF THE OPTICAL YIELD OFOCTAHELICENE.

Description: 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.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

SPECTROSCOPIC INVESTIGATION OF THE INHIBITORY EFFECT OF FATTYACIDS ON PHOTOSYNTHETIC SYSTEMS

Description: Fatty acids have a reversible inhibitory effect on respiration and on photosynthetic action. They investigated the influence of octanoic acid on the photosynthetic bacteria Rhodopseudomonas spheroids R-26. From the spectroscopic data they conclude that a less efficient energy transfer and decoupling of the light harvesting pigment system from the energy converting reaction center is responsible for the inhibitory effect.
Date: May 1, 1971
Creator: Steffea, Hans & Calvin, Melvin.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Waukegan Station plume

Description: In a previous report on effects of thermal discharges from power plants into the Great Lakes, we stressed the need for a statistical analysis of the spatial and temporal pattern of the thermal plume. The plume pattern is recognized as stochastic in nature and requires statistical analysis. A single realization of the Waukegan Station plume is studied with emphasis on its information content. Areas between isotherms at various depths are computed together with volumes of water in given temperatu… more
Date: May 1, 1971
Creator: Abu-Shumays, I.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Waukegan Station plume

Description: In a previous report on effects of thermal discharges from power plants into the Great Lakes, we stressed the need for a statistical analysis of the spatial and temporal pattern of the thermal plume. The plume pattern is recognized as stochastic in nature and requires statistical analysis. A single realization of the Waukegan Station plume is studied with emphasis on its information content. Areas between isotherms at various depths are computed together with volumes of water in given temperatu… more
Date: May 1, 1971
Creator: Abu-Shumays, I. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

NUCLEAR CHEMISTRY ANNUAL REPORT 1970

Description: 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) Instr… more
Date: May 1, 1971
Creator: Authors, Various
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Introduction to SPEAKEASY

Description: 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 f… more
Date: May 1, 1971
Creator: Cohen, S. & Vincent, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Proposal to study pi -p reactions at 60 and 200 GeV/c in the 30 inch hydrogen bubble chamber at NAL

Description: A request is made for 50,000 photographs of 60 GeV/c {pi}{sup -} and 50,000 photographs of 200 GeV/c {pi}{sup -} in the Argonne 30 inch hydrogen bubble chamber at NAL. Reasons are given explaining how good physics can be done with this chamber. This experiment is a natural extension of the work of the group and will be of great usefulness in preparing for experiments with the CERN II accelerator.
Date: May 1, 1971
Creator: Besliu, T.; Bockmann, K.; Campbell, R.; Cocconi, V. T.; Dalpiaz, P. F.; Duinker, P. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary results of the loss-of-coolant heat transfer study for N- Reactor

Description: Driver fuel cladding, process tube and graphite temperatures were experimentally simulated with an electrically heated test assembly to establish the rate of radiation heat transfer from the fuel to the process tube foilowing a loss-of-coolant incident in the N-Reactor. This information is necessary as supporting data and verification for the analytical description of such an incident. The available results of the first three of a total of six experiments are presented. These results are suitab… more
Date: May 1, 1971
Creator: Sutey, A. M.; Fitzsimmons, D. E. & Collingham, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen