Now showing items 51-60 of 75
Viscosity of dilute solutions of linear and branched polyvinyl acetate A preliminary account of this work was presented at the Ann Arbor High Polymer Research Conference, July 25, 1955.
(Interscience Publishers, Inc.Wiley Periodiocals, Inc., 1956-10)
The dilute solution viscosity properties of fractions of two linear and one branched sample of polyvinyl acetate in benzene and of two linear and one branched fraction in several solvents were measured at 35°C. Values of ...
The effect of polymyxin on plant roots
(Elsevier, 1955-10)
Root growth of young seedlings of barley and other species was substantially inhibited when placed in 5-10 p.p.m. solutions of the antibiotic, polymyxin B. The inhibiting effect was suppressed by simultaneous presentation ...
Upward cocurrent annular flow of air and water in smooth tubes
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1955-03)
Two-phase fluid flow is distinguished from single-phase flow in two respects: (1) the cross section for flow of either fluid is not defined by the conduit alone and (2) not only the extent but the manner of frictional ...
Ignition of solid propellants by forced convection
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1956-12)
Experimental data are reported for the ignition of single grains of solid propellant in a stream of gas at high temperature. The investigation encompassed gas temperatures from 578° to 1,070°K., gas velocities corresponding ...
Pressure drop through porous media Parts I through IV of this article appeared in the Transactions of the American Institute of Chemical Engineers and Chemical Engineering Progress (1 to 4).
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1956-03)
Fluid flow data are presnted for beds of uniformly sized spheres consolidated with resin over a porosity range from 36.4 to 12.3%. The data are analyzed in terms of an effective pore volume and equations are given for ...
Variation of contact angle and structure with molecular length and surface density in adsorbed films of fatty acids
(Elsevier, 1956-02)
Films of fatty acids from 12 to 22 carbons were prepared by adsorption on glass microscope slides from cetane solutions. Variations in density were achieved (1) by using a range of concentrations with a fixed short time ...
Effect of superatmospheric pressures on nucleate boiling of organic liquids
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1958-03)
Superatmospheric pressures greatly reduce the temperature differences in nucleate boiling of or ganic liquids. Since nucleate boiling is characterized by bubble formation at the heating surface, it seems logical to investigate ...
The Raman spectra of four isotopic varieties of diborane in the gas phase
(Elsevier, 1958-02)
Raman spectra of the four isotopic species, 11B2H6, 11B2D6, 10B2H6, 10B2D6, in the gas phase have been obtained and interpreted in terms of the D2h bridge model. The results are in agreement with previous interpretations ...
Extraction of sugar from beets
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1958-12)
This paper presents the results of a previous investigation on the continuous counter-current extraction of sugar beets ( 3 ) and its correlations. The relationship between the continuous diffusion and the simple diffusion ...
Heat transfer by radiation through porous insulations
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1959-12)
Radiant transfer through fibrous and foamed insulating materials was investigated theoretically and experimentally. Transmission measurements were made under isothermal conditions with a black-body source varying from 200° ...