A hexagonal oxynitride (Li(0.88)□(0.12))Nb(3.0)(O(0.13)N(0.87))(4) was synthesized through ammonia nitridation of LiNb(3)O(8). The structural analysis revealed that this oxynitride consists of alternate stacking of octahedral and prismatic layers with different Li/Nb ratios: significant amounts of Li and Nb atoms (Li/Nb = 43/57) coexist in the octahedral layer, while the prismatic site is prefe...

The effect of prismatic joint inertia on dynamics of planar kinematic chains with friction is investigated. The influence of the prismatic joint inertia on the position of the application point of the joint reaction forces and on the dynamic response of a planar robot arm with feedback control is analyzed. Larger values of the initial condition response characteristics are observed for larger v...

This paper presents a robust and automated approach to generate unstructured hybrid grids comprised of prismatic and tetrahedral elements for viscous flow computations. The hybrid mesh generation starts from a triangulated surface mesh. The prismatic elements are extruded based on the weak solutions of the Eikonal equation to generate anisotropic elements at boundaries, and finally the isotropi...

The problem of vibration based fault detection in a time-varying, extendable, prismatic link structure is addressed. The structure is extended from its fully retracted to its fully expanded position at a constant speed, while it is subject to broadband random force excitation. The faults considered are of various types and occurrence locations, while their detection is based solely on the non-s...

Rotating beams are considerably used in different mechanical and aeronautical installations. In this paper, free vibration of non-prismatic rotating Euler-Bernoulli beams is studied. Dynamic stiffness matrix is evaluated by using differential transform method, a powerful numerical tool in solution of ordinary differential equations, for solving the governing equation of motion. The method is ca...