Franz

H. Hellmann, Einjuhrung in die Quantenchernie, Franz Deutiche, Leipzig, 1937. 

Most of the synthetic work directed toward the higher annulenes was earned out by Franz Sondheimer and his students first at Israel s Weizmann Institute and later at the University of London Sondheimer s research systematically explored the chemistry of these hydrocarbons and provided experimental venfication of Huckel s rule... 

Adequate prediction of the thermal conductivity for pure metals can be made by means of the Wiedeman-Franz law which states that the ratio of the thermal conductivity to the product of the electrical conductivity and the absolute temperature is a constant. This ratio for... 

A familiar type of cyclically operated solenoid electromagnet is the Franz separator, a well-known continuous pe of solenoid separator manufactured by Kriipp-Sol. An enclosed flux return-frame solenoid design for cyclic and continuous use is built by Sala International Inc. 

Franz Isodynamic Electromagnet 10,000 — 2000 Strongly, weakly >0.01 Only for laboratory... 

Solenoid Franz ferro filter Electromagnet 20,000 Steel ribbons, halls 200,000 Strongly, weakly >0.01 Tramp and fine iron, ceramic slurries, industrial minerals, chemical industry... 

As described above, quantum restrictions limit tire contribution of tire free electrons in metals to the heat capacity to a vety small effect. These same electrons dominate the thermal conduction of metals acting as efficient energy transfer media in metallic materials. The contribution of free electrons to thermal transport is very closely related to their role in the transport of electric current tlrrough a metal, and this major effect is described through the Wiedemann-Franz ratio which, in the Lorenz modification, states that... 

---