But sometime there are duplicate storage problems because of the impedance mismatch between object model and relational model.

This paper analyzes the process about the integration of the C-Omega language and the query language, points out the merit of using inquiry operator in the integration, and proposes a solution about impedance mismatch on operating the data set based on the C-Omega and query language on basis of this.

The design of impedance matching transformer of ultrasonic motor;

A Practical Impedance Matching Method;

Research of the impedance matching in the RF Power for the CO_2 Lasers;

The design of impedance-match is a key problem in the design of slotted-waveguide array antenna,mainly including the impedance-match of both radiating slot and coupled slot.

This paper gives a method to evaluate the quality of the impedance-matching experiments by the relation between standard and unknown materials shock wave velocities.

Considering the unsymmetrical characteristic of the ABC threephase constructure of the impedance-matching balance transformer and adopting the phase components method, the short-circuit calculation formulae of three-phase and two-phase sidesare deduced in the paper when all kinds of practical short-circuit failure appear at thetraction busbar side.

I have studied the impedance-matching of RF transmission line between the antenna and the GPS module.

Mechanism of broadband transmission line and design of impedance match transformer;

The antenna was optimized in order to wide bandwidth and impedance matching.