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Fixation of Carbon Dioxide by Barley Roots
The uptake of carbon dioxide by plant roots preparations has been demonstrated by various authors. In addition to confirming the fact of fixation, I have investigated the effect of a number of factors involved and the compounds in which the absorbed carbon appears, using carbon-14.
Date:
November 30, 1951
Creator:
Poel, L. W.
System:
The UNT Digital Library
Calculation of Shielding for Mark II Accelerator
The proper roof thickness to correspond with a given side wall thickness has been estimated fro experience with the 184 feet cyclotron, which has indicated that a roof of about 1 1/2 feet should accompany a wall of 5 feet, and a roof of 4 feet should accompany a wall of 15 feet. For the roof area involved, this should bring about the condition that down-scattered neutrons in the working areas are but a small fraction of the neutrons coming through the side walls.
Date:
June 30, 1951
Creator:
Moyer, B. J.
System:
The UNT Digital Library