Compared with the conventional method, in which the valley of the impedance curve fM (fB) is adjusted to the designed value fB (fBO),the proposed method is called "quality factor adjustment method".

A method to calculate the average quality factor value ■ of strata;

Amplifying of the quality factor of AFM microcantilevers in liquid environment;

Definition of the quality factors Q of parallel and serial resonant circuits according to the exchange of energy;

Based on the definition of Q factor,when the loss of inductor should be considered,the tie between the unloaded quality factor QP of LC resonant circuit and the intrinsic quality factor Q0 of inductor coil is:QP=Q20-1(1+1/Q0),QP=Q0,while Q01.

By way of a study on the near-surface seismic wave dual transmission mechanics,the paper discussed the relation between the Q factor and shothole depth,then according to the maximum seismic shot wave energy,maximum signal-to-noise ratio and shothole depth correlation curves of different area,different Q factor,worked out corresponding shot depth.

The microring resonator was fabricated by using CMOS compatible processes with 1 μm wide waveguides and 400 μm in radius,which has a high Q factor up to 20,000 and a Free spectrum range of 0.

Measurement of permeability and Q-factor of ferrite toroids;

Obtained results show that a proper amount of mixed Bi2O3-Nb2O5 addition could promote effectively not only densification,decrease in grain size,and improve uniformity of crystalline grains,but also Q-factor of specimen.

The quality factor (Q-factor) of the resonators is calculated and the affection of the photonic crystal s structure and the defect s geometrical parameters on the resonance characters are analyzed.