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A mathematical model for spinning molten polymer and conditions of spinning.
The equation of spinning of molten polymers in the stationary non-isothermal state have been solved by an analytical numerical method so as to obtain temperature and section profiles along the spinning axis . and are thus correlated with the molecular parameters of the molten polymer: viscosity, density, and extrusion temperature, and polymer mass-flow rate. Furthermore, the correlation has been obtained between fiber quality and steady-state solutions. A critical collection rate and the critical extrusion output have been deduced from such correlations. Above such critical values, breakage of the molten polymer takes place
Influenza della distanza tra le file e della fittezza di semina sulla produzione in seme di Lolium multiflorum Lam.,Dactylis glomerata L. e Festuca arundinacea Schreb.
Ein mathematisches Model fur das Verspinnen geschmolzener Polymerer und fur die Spinnbedingungen
ISSN Online 1435-1536
(This is a translated German version of a previous article.
Smooth Lines in Confirmation Theory: Carnap, Hempel, and the Moderns
Carrier M. Smooth Lines in Confirmation Theory: Carnap, Hempel, and the Moderns. In: Parrini P, Salmon WC, Salmon MH, eds. Logical Empiricism: Historical and Contemporary Perspectives. Pittsburgh, Pa.: Univ. of Pittsburgh Press; 2003: 304-324
THE POSSIBLE APPLICATION OF LATTICE-CONSTANTS OF STIBNITE FOR GEOTHERMOMETRY IN ORE-DEPOSITS - A DISCUSSION
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