China “will demand from the incoming Trump administration guarantees that no tariff will be imposed on Beijing for a period of X time after Xi’s visit,” Andrew Bishop, global head of policy ...

In the wavelet domain, periodic clustering similarity is proposed to measure ... Frequency correlated kurtosis measures the signal’s frequency domain periodicity. The proposed method is verified by ...

The team developed a novel metasurface antenna capable of simultaneously generating and controlling multiple frequency components through software ... The antenna can simultaneously transmit multiple ...