A general analysis of magnetic viscosity based on activation energy concepts is given. A particular case is considered of the application of the theory to the phenomenon occurring in materials in which bulk magnetization proceeds by the rotational movement of the vectors of single domains, which process, according to…

Magnetic properties of thin filmsMagnetic Properties and ApplicationsMagnetic Properties of Alloys

Determination of Electronic Structure of Molecules from Nuclear Quadrupole Effects

C. H. Townes、B. P. Dailey1949-09-01OpenAlex

Nuclear quadrupole coupling constants in molecules depend on the nuclear quadrupole moments and the variation in electrostatic field at the nucleus. It is shown that this variation of electric field is usually simply related to the molecular electronic structure, being primarily dependent on the way in which valence e…

Inorganic and Organometallic ChemistrySolid-state spectroscopy and crystallographyMolecular Spectroscopy and Structure

The Dynamics of Cavitation Bubbles

M. S. Plesset1949-09-01OpenAlex

Abstract Three regimes of liquid flow over a body are defined, namely: (a) noncavitating flow; (b) cavitating flow with a relatively small number of cavitation bubbles in the field of flow; and (c) cavitating flow with a single large cavity about the body. The assumption is made that, for the second regime of flow, th…

Ultrasound and Cavitation Phenomena

The dissociation energy of the N-N bond in hydrazine

M. Szwarc1949-08-15Proceedings of the Royal Society of London A Mathematical and Physical Sciences

Abstract The thermal decomposition, of hydrazine was investigated over a temperature range of 630 to 780°C and at pressures of a few mm. Hg. The experiments were carried out in a flow system, toluene being used as a carrier gas. This technique makes it possible to discriminate between the heterogeneous decomposition o…

Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions