Artificial ant colony optimization for intersection signal timing;

This paper summarizes the current signal timing design flow of intersections.

The optimization of signal timing is an important way to improve intersection level of service.

The impulse function is an ideal signal models and allied frequency scanning signal,it is also a test signal,this viewpoint is helpful for the readers to understand the intention and meaning of introducing impulse function,also helpful to apprehending the exact physical meaning of impulse response and system function exactly in signal and system analysis.

Spaceborne bistatic SAR geometry and signal model;

In this paper,a signal model of ultrasonic testing for large grained materials is developed.

After describing IR-UWB signal model,some open research issues in this field are discussed in detail.

In contrast to most signaling models,this paper assumes that a higher valued firm is distinguished from its lower valued counterpart by having a cash flow distribution with a lower variance,but with the same mean.