Some people want a flashlight to do more than just emit a forward-facing cone of light. If you're one of those folks, you might like what the multi-functional Endorol has to offer. Currently the ...

Abstract: Analytical expressions are obtained for describing nonparaxial diffraction of vortex beams during their propagation in free space. The studied beams are excited by radially polarized modes ...

Abstract: In order to satisfy stringent performance requirements in a dynamic process, a computer is incorporated as a central element in the feedback loop. The computer performs the dual task of ...

Natural frequencies are important dynamic characteristics of a structure where they are required for the forced vibration analysis and solution of resonant response. Therefore, the exact solution to ...