Microresonators (MRs) are key components in integrated optics. As a result, the estimation of their energy storage capacity as measured by quality factor (Q) is crucial. However, MRs with high/ultrahigh Q, wall-surface roughness dominates intrinsic Q and generates coupling between counter-propagating modes. This splits usual sharp single resonance makes use classical methods to assess difficult...

Let G be a graph, and denote by Q(G)/2t the hypercube of dimension log2|G|-t. Motivated by the problem of simulating large grids by small hypercubes, we construct maps f:G→Q(G)/2t, t ≥1, when G is any two or three dimensional grid, with a view to minimizing communication delay and optimizing distribution of G-processors in Q(G)/2t. Let dilation(f) = max{dist(f(x),f(y)): xy E(G)}, where "dist"...

In the design of high Quality factor (Q) micro or nano beam resonators, different dissipation mechanisms may have damaging effects on the quality factor. One of the major dissipation mechanisms is the thermoelastic damping (TED) that needs an accurate consideration for prediction. In this paper, thermoelastic damping of the longitudinal vibration of a homogeneous micro beam with both ends clamp...

OBJECTIVE To evaluate the accuracy and diagnostic usefulness of a disposable flowmeter consisting of a plastic funnel with a spout divided into three chambers. MATERIALS AND METHODS Men with lower urinary tract symptoms (LUTS) voided sequentially into a standard flowmeter and the funnel device recording maximum flow rate (Q(max)) and voided volume (V(void)). The device was precalibrated such ...