The Path of Carbon in Photosynthesis IV. The Identity and Sequencefo the Intermediates in Sucrose Synthesis (open access)

The Path of Carbon in Photosynthesis IV. The Identity and Sequencefo the Intermediates in Sucrose Synthesis

The synthesis of sucrose from C{sup 14}0{sub 22} by green algae has been investigated and the intermediates separated by the method of paper chromatography. It is shown that sucrose is the first free sugar appearing during photosynthesis. It is apparently formed by condensation of the glucose-I-phosphate and a fructose phosphate. A series of radioautographs of paper chromatograms of extracts from plants which have photosynthesized for different periods of time has been prepared. The results indicate that 2-phosphoglyceric acid is the first product synthesized from C0{sub 2} during photosynthesis.
Date: December 14, 1948
Creator: Calvin, M. & Benson, A.
System: The UNT Digital Library
P Division monthly report, November 1948 (open access)

P Division monthly report, November 1948

This progress report discusses activities at the P Division for the month of November 1948. All piles operated at 275 megawatts (MW) throughout the month except for outages listed under Area Activities in this report and except that F Pile operated at a reduced level during the first half of the month. This operation at reduced level was incident to the leaking process tube reported last month. A total of 81.4 tons of metal was discharged from the piles during the month. The 300 Area canned a total of 150 tons of acceptable slugs during the month to establish a new production record. On November 29 the operating schedule for the Melt Plant was changed from a three-shift to a two-shift, six-day week schedule. The backlog of material largely had been worked off and the new schedule is adequate for processing the current accumulation of scrap.
Date: December 20, 1948
Creator: Lee, Edward P.
System: The UNT Digital Library
Water leak, 100-F Area (open access)

Water leak, 100-F Area

This document serves to record pertinent information regarding detection and repair of a water leak in Process Tube No. 3169-F in the F File and subsequent steps necessary to remove the water from the pile in order to return to normal level.
Date: December 1, 1948
Creator: Baker, J. T.
System: The UNT Digital Library
Neut (open access)

Neut

This letter discusses the construction of Neuts (neutron detectors) and provides operating instructions for these instruments.
Date: December 16, 1948
Creator: Eisenacher, P. L.
System: The UNT Digital Library
Brookhaven National Laboratory Progress Report, July 01, 1948 to December 31, 1948 (open access)

Brookhaven National Laboratory Progress Report, July 01, 1948 to December 31, 1948

This is a progress report from the Brookhaven National Laboratory during the period July 1-December 31, 1948.
Date: December 31, 1948
Creator: Brookhaven National Laboratory
System: The UNT Digital Library
Paramagnetic Susceptibilities and Electronic Structures of Aqueous Cations of Elements 92 to 95 (open access)

Paramagnetic Susceptibilities and Electronic Structures of Aqueous Cations of Elements 92 to 95

None
Date: December 1, 1948
Creator: Howland, J. J. & Calvin, M.
System: The UNT Digital Library
Monsanto Chemical Company, Unit 3 progress report, January 16--31, 1948 (open access)

Monsanto Chemical Company, Unit 3 progress report, January 16--31, 1948

Solubilities -- Orban: The solubility of postum in various concentrations of nitric acid was determined at 25.4{degrees}C. Hydrofluoric and Trifluoroacetic Acids -- Abel and Raiff: Details of this work will be reported in the next Progress Report. Conversion of Nitric Acid Solutions to Hydrofluoric Acid Solutions -- Bell: Conversion of production solutions to hydrofluoric acid solutions was tried by precipitation with ammonium oxalate, aluminum hydroxide, ammonium hydroxide, and sodium carbonate. Silver and Teflon discs were used.
Date: December 31, 1948
Creator: unknown
System: The UNT Digital Library
Physics group process report, April 1--30, 1948 (open access)

Physics group process report, April 1--30, 1948

The high rate neutron scaler has been removed from service for repair. Consequent study has led to the discovery of a double counting effect. The vacuum system of the vacuum balance is being redesigned and rebuilt so as to obtain a higher vacuum. The vapor pressure of postum was measured with a quartz sickle gauge between 0.3 and 90 mm. of mercury pressure at temperatures between 430{degrees} and 745{degrees}C. The least square representation of the data is the following: Log p = {sub T}{und 5377.8} + 7.2345 where p is the pressure in mm. of mercury and T is the absolute temperature. From this least square equation the extrapolated boiling point is 962.1{degrees}1{degrees}C. and the latent heat of vaporization is 24,597 calories per mole. A single crystal study of potassium chloride is being made since it is the crystal which is most nearly like a simple cubic lattice. The Geiger counter X-ray spectrometer belonging to Unit I was set up and a recorder attached so that certain patterns could be obtained more quickly. Continuation of the effusion experiment showed that data obtained were violently Inconsistent. The experimental work Is being dropped. At the end of the Physics Group Progress Report …
Date: December 31, 1948
Creator: Knauss, H.P.
System: The UNT Digital Library
Laboratory instrument design progress report, November 1--30, 1948 (open access)

Laboratory instrument design progress report, November 1--30, 1948

Progress is reported on the following projects: Quartz-fiber microbalance research, quartz-fiber construction and maintenance, design of multiple stirrer plating unit, and design of rotating stage for foil photography.
Date: December 31, 1948
Creator: Olt, R.G.
System: The UNT Digital Library
Electrodeposition research progress report, May 1--31, 1948 (open access)

Electrodeposition research progress report, May 1--31, 1948

Studies on the conversion of production nitric acid solutions to bismuth free postum (Polonium 210) solutions and the plating of postum from the hydrofluoric acid solution.
Date: December 31, 1948
Creator: Orban, E.
System: The UNT Digital Library
200 areas contaminated particle discharge (open access)

200 areas contaminated particle discharge

None
Date: December 15, 1948
Creator: unknown
System: The UNT Digital Library
Electronics progress report, December 1--31, 1948 (open access)

Electronics progress report, December 1--31, 1948

Equipment and supplies are being packed for moving to Mound Laboratory. Work was started on the development of a cathode-follower circuit to match a B-wall tube to its connecting cable. The final report and maintenance manual for the scaler-multiplier are almost finished. The 10 millivolt Speedomax recorder used by Group 3 in the study of electrodeposition potentials has been replaced with a 150 millivolt Speedomax, utilizing two recording points for simultaneous recording of radioactive deposition and the plating cell current. Three two-input B-wall mixers, three scaler-multipliers, one four-input Geiger-Mueller mixer and five Thyratron heater controls were delivered to Group 24. One high-current plating control, EL-173, was delivered to Group 17. The following instruments are complete: portable pulse generator, EL-261, the instruction book and photographs will be submitted for approval at an early date. Portable regulation checker, EL-258. Preliminary tests have been made, instructions are being written and drawings are being made.
Date: December 31, 1948
Creator: Heyd, J. W. & Ohmart, P. E.
System: The UNT Digital Library
Monsanto Chemical Company Unit 3 progress report, January 16--31, 1948 (open access)

Monsanto Chemical Company Unit 3 progress report, January 16--31, 1948

This monthly report provides brief progress descriptions of a number of projects being conducted at Mound Laboratory. Projects include sensitivity of the scaler used for neutron counting, purity of postum (Polonium 210), vapor pressure of postum, resistivity of postum, vapor pressure of selenium,and x-ray diffraction studies to determine the coefficients of expansion for aluminum, copper, lead,and gold.
Date: December 31, 1948
Creator: unknown
System: The UNT Digital Library
Gamma scale chemistry progress report, November 1-30, 1948 (open access)

Gamma scale chemistry progress report, November 1-30, 1948

This report details gamma scale chemistry activities at Mound Laboratory during the month of November1948.
Date: December 1948
Creator: Martin, A. W.
System: The UNT Digital Library
Process Section progress report, April 1--30, 1948 (open access)

Process Section progress report, April 1--30, 1948

The Process group reports that material processing is on schedule and that process laboratories 2 and 3 are being overhauled. The Electrodeposition group reports that they are on schedule but that they are somewhat handicapped due to a lack of coveralls. Administration reports that Site W schedules have been prepared.
Date: December 31, 1948
Creator: Scott, David L.
System: The UNT Digital Library
Neutron source progress report, March 1--31, 1948 (open access)

Neutron source progress report, March 1--31, 1948

This monthly progress report describes efforts to prepare neutron sources with postum (Polonium 210) and either beryllium, boron or lithium by volatilization and by electrochemical deposition.
Date: December 31, 1948
Creator: Richmond, J.
System: The UNT Digital Library
Monthly health information report, August 1--31, 1948 (open access)

Monthly health information report, August 1--31, 1948

This document presents details about health concerns resulting from the activities of the Mound Laboratory during the month of August 1948.
Date: December 31, 1948
Creator: Boozer, A. H.
System: The UNT Digital Library
Gamma scale chemistry progress report, July 1--31, 1948 (open access)

Gamma scale chemistry progress report, July 1--31, 1948

Preparation and analytical chemistry of postum (Polonium 210) dibromide and tetrabromide by bromination of metallic postum are described.
Date: December 31, 1948
Creator: Martin, A.W.
System: The UNT Digital Library
Physics progress report (open access)

Physics progress report

This document is the December 1948 Physics Division Progress Report from the Mound Laboratory. Items covered include: (1) measurement of the vapor pressure of polonium, (2) x-ray diffraction analysis of tantalum, (3) use of the vacuum balance, and (4) updates on efforts to prepare an x-ray target, measurement of the resistivity of polonium, and construction of polonium gamma standards.
Date: December 1, 1948
Creator: Haring, M. M.
System: The UNT Digital Library
Neutron source progress report (open access)

Neutron source progress report

In this report progress is reported on the production of the postum-beryllium neutron sources and the postum-fluoborate neutron sources. A brief discussion is given for each. Results are given of the efficiency of the postum-fluoborate source and its comparison with Std. 9 and Al-1. This source was shipped to Los Alamos on December 16, 1948.
Date: December 1, 1948
Creator: Richmond, J.L.
System: The UNT Digital Library
General chemistry progress report, May 1--31, 1948 (open access)

General chemistry progress report, May 1--31, 1948

Three studies are described: diffusion of postum (Polonium 210), measurement of standard potential of postum, and polarography with the cathode controller.
Date: December 31, 1948
Creator: Power, W. H.
System: The UNT Digital Library
Electrodeposition progress report, September 1--30, 1948 (open access)

Electrodeposition progress report, September 1--30, 1948

Two difficulties which have been encountered in the attempts to prepare hydrofluoric acid solutions by precipitation and resolution are (1) dissolution of postum out of the solid precipitate leaving behind a solid bismuth compound and (2) the plastics used for a reaction vessel. Plastics tried have not held up under the combined effects of hydrofluoric acid, moderate heat, and alpha bombardment and the overall yield of the method is rather low. The plastics problem may be solved by the use of ``Fluorothene`` which is on order from the Atomic Energy Commission and should arrive soon. The problem of leaching the postum from the precipitate may be solved by careful control of pH during precipitation procedure to avoid the precipitation of as much bismuth as possible.
Date: December 31, 1948
Creator: Orban, E.
System: The UNT Digital Library
Health Division research progress report, July 1--31, 1948 (open access)

Health Division research progress report, July 1--31, 1948

This report presents the details of the activities of the Mound Laboratory health sciences group during the month of July 1948.
Date: December 31, 1948
Creator: Jolley, W. P.
System: The UNT Digital Library
Production electrolysis studies V (open access)

Production electrolysis studies V

This study seeks to determine the decomposition of bismuth trioxide by polarography. Results gained confirmed that at decomposition potentials observed that bismuth will not be reduced under normal plating conditions observed during production.
Date: December 31, 1948
Creator: Power, W. H. & Ford, M.
System: The UNT Digital Library