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  • Chemistry  (15)
  • Biochemistry and Biotechnology  (1)
  • Wiley-Blackwell  (15)
  • 1960-1964  (15)
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Keywords
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  • Wiley-Blackwell  (15)
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Studies on the purification of vaccinia virusIn conducting the research reported herein, the investigators adhered to “Principles of Laboratory Animal Care,” as established by the National Society for Medical Research. (1964)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 6 (1964), S. 321-328 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Various methods for the removal of extraneous matter from vaccinia virus suspensions are described and compared. Of ten procedures tested, differential centrifugation and Freon extraction were the most successful. Both the partially purified suspensions and the dried products prepared from them had high virus titers in embryonated eggs and high infectivity for mice. Although both processes resulted in products with the same titers, the differentially centrifuged product was approximately tenfold more purified as shown by the percentage solids of the suspensions before freeze drying.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260060307
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  • 2
    Electronic Resource
    Electronic Resource
    Heat transfer coefficients for a hot gas oscillating at high amplitudes in a cylindrical chamber (1964)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 10 (1964), S. 580-583 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690100432
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  • 3
    Electronic Resource
    Electronic Resource
    Free energies of formation of fluorocarbons and their radicals. Thermodynamics of formation and depolymerization of polytetrafluoroethylene (1962)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 56 (1962), S. 277-296 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Enthalpies and free energies of formation of a group of aliphatic fluorocarbons and their radicals for 298.15°K. and the ideal gaseous condition are calculated from the available experimental heat and entropy data, extended by means of empirical series treatments. The polymerization of tetrafluoroethylene and the thermal breakdown of the resulting polymer are recognized as thermodynamically equivalent processes, differing only in the sign of the thermal quantities involved. Free energy changes attending various intermediate steps in the free radical-initiated polymerization are calculated. The heat and free energy of polymerization are highly exothermal at 298.15°K., compared with those for other olefinic compounds. At high temperatures reversal of the synthesis steps is to be expected. Initiation of degradation need not occur merely by reversal of the termination process, although this possibility is not excluded.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1962.1205616401
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  • 4
    Electronic Resource
    Electronic Resource
    Polymerization of higher aldehydes. VI. Mechanism of aldehyde polymerizationPart of this paper was presented at the Gordon Conference on Polymers, New London, New Hampshire, July 1962, and at the meeting on Mechanism of Stereospecificity, Moretonhampstead, Devon, England, May 1962. (1964)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 2 (1964), S. 4633-4645 
    Details
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: On the basis of results presented in previous papers possible mechanisms of polymerization of higher aldehydes are considered. The influence of solvents, temperature, initiator, and monomer upon the polymerization is discussed with particular emphasis on the stereoregularity of the resulting polymer. It is proposed that more than one monomer unit is involved in the propagation step. Both the stereoselective addition of monomer to the growing chain and the chain transfer reaction are thought to take place in a concerted manner. Chain transfer results in termination with the formation of hydroxyl, ester and probably ether end groups; growing chains which do not undergo transfer remain as “living” ends after the monomer supply is exhausted. Some thermodynamic values for carbonyl polymerizations are estimated.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1964.100021030
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  • 5
    Electronic Resource
    Electronic Resource
    The effect of plate wetting characteristics on pulse column extraction efficiency (1960)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 6 (1960), S. 619-624 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Liquid-liquid extraction of acetic acid from the methyl isobutyl ketone-water system was studied as a function of plate wetting characteristics and other variables in a pulsed perforated-plate extraction column.Various combinations of stainless steel plates and polyethylene plates were used with different directions of solute transfer at a constant throughput of 82.6 lb. total flow/(min.) (sq. ft. column area) and with other operating variables in the following range:Frequency  -  16 to 117.1 c./min.Amplitude  -  0.492 and 0.973 in.W/K flow ratio  -  0.46 to 2.8 lb. water/lb. ketoneThe plate wetting characteristics were found to affect the column extraction efficiency when the solute transfer was from the continuous ketone phase to water. An all polyethylene plate arrangement provided the best efficiency (H. T. U.oc = 4.1 in.) while an all stainless steel plate arrangement was less efficient (H. T. U.oc = 6.1 in.) under the most favorable operating conditions. A combination of these two arrangements in the column produced efficiencies midway between the all-plastic plate arrangement and the all-stainless steel plate arrangement.Within the column flooding limits the extraction efficiency did not seem to be affected by the plate wetting characteristics when the solute transfer was from water to the continuous ketone phase.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690060423
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  • 6
    Electronic Resource
    Electronic Resource
    Interphase mass transfer for laminar concurrent flow of carbon dioxide and water between parallel plates (1963)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 9 (1963), S. 630-635 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Interphase mass transfer between carbon dioxide gas and water has been investigated. The physical model used was the laminar concurrent flow of gas and liquid in a wide rectangular channel. Because of the high aspect ratio employed, the model was effectively one of parallel plates of infinite width.Three methods of solving the equations of change - the eigensolution method, the boundary layer theory, and penetration theory - were used to compute the diffusion coefficient of carbon dioxide in water from the experimental data. Calculated values of diffusion coefficients from the penetration theory checked well with those from the eigensolution method, but the values computed from the integrated boundary layer equation were about 10% higher.Results from the eigensolution agreed within 5% with the data of other investigators in the temperature range of 20° to 30°C.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690090512
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  • 7
    Electronic Resource
    Electronic Resource
    Measurement and correlation of turbulent friction factors of thoria suspensions at elevated temperatures (1964)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 10 (1964), S. 403-407 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690100324
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  • 8
    Electronic Resource
    Electronic Resource
    Boiling burnout heat flux measurements in a non-Newtonian suspension (1964)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 10 (1964), S. 684-687 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690100521
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  • 9
    Electronic Resource
    Electronic Resource
    Velocity profiles of thoria suspensions in turbulent pipe flow (1964)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 10 (1964), S. 723-727 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Velocity profiles and friction factors of non-Newtonian fluids in turbulent pipe flow can be displayed with the semiempirical forms developed for Newtonian fluids in which the apparent viscosity evaluated at the wall shear stress is used.Friction factors and velocity profiles were obtained for a dilute and a concentration aqueous thoria suspension and compared with the Newtonian correlations and with previous data obtained from widely different non-Newtonian fluids including a viscoelastic fluid. A relationship is shown between the decrease of the friction factor and the change in the velocity distribution towards a more laminar profile.A generalized method of deriving the friction factor-Reynolds number plot from the velocity profile based on the von Kármán relationship for Newtonian fluids is derived and compared with the data.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690100528
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  • 10
    Electronic Resource
    Electronic Resource
    A kinetic study of sulfur dioxide in aqueous solution with radioactive tracers (1964)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 10 (1964), S. 574-580 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A kinetic study was made of the homogeneous reactions in the sulfur dioxide-sodium bisulfite-water system, with a radioactive tracer technique. By operating this system at chemical equilibrium but at isotopic disequilibrium the influence of the diffusion of sulfur dioxide into and out of the aqueous solution could be divorced from the kinetic effects of the chemical reaction. It was then possible to follow the rate of reaction of this system by analyzing the radioactive sulfur-35 in the form of gaseous sulfur dioxide, with the Bernstein-Ballentine technique.Data were collected at temperatures of 0° to 20°C. and at pH ranges from 1.25 to 4.3. Analysis and correlation of the experimental data by different kinetic models demonstrated that the classical reaction SO2 + H2O ⇌ H+ + HSO3- represented the experimental data best from a macroscopic viewpoint. Because of the low pH conditions employed it was not possible to obtain rate data for the reaction SO2 + OH- ⇌ HSO3.Forward and reverse rate constants are reported for the first time for this system.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690100431
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