Synopsis The usual definition of electric and magnetic field intensities (E and H) in a noninertial coordinate system is not unique. A system of reference is here newly defined as a continuous, three dimensional distribution of observers, with each of which a frame of reference (orthonormal tetrad) is associated. The fields E and H in such a reference system will always be given by the same phy...

Based on the ray transformation matrix formalism, we propose a simple method for generation of paraxial beams performing anisotropic rotation in the phase space during their propagation through isotropic optical systems. The widely discussed spiral beams are the particular case of these beams. The propagation of these beams through the symmetric fractional Fourier transformer is demonstrated by...

At low pressure, ethylene gas consists of single translating and rotating molecules and behaves as an ideal gas. With decrease of free volume by compression, various rotating supramolecular particles are formed, which require less space for the movement: molecular pairs, bimolecules and oligomolecules. The appearance of a new kind of particles is manifested as a phase transition of the second o...

While job rotation has been well recognized as an effective management strategy for career development, it could have detrimental effects on the success of a healthcare information system. Junior physicians, who often periodically rotate among different hospitals, are unlikely to be proficient in a particular system. Drawing on the situated learning theory, this study explores how job rotation ...

Advanced wastewater treatment using membranes are popular environmental system processes since they allow reuse and recycling. However, fouling is a key limiting factor and so proprietary systems such as Avanti's RPU-185 Flexidisks membrane bioreactor (MBR) use novel rotating membranes to assist in ameliorating it. In earlier research, this rotating process was studied by creating a simulation ...