Due to the usable frequency becomes more and more crowed,dynamic spectrum access (DSA) is a new hope to solve this problem.However,DSA in China requires a quant
To investigate the influence of expansion pretreatment for materials on carbon structure,activated carbons(Acs)were prepared from corncob with/without expansion
With the development on high-speed integrated circuit,fast high resolution sampling ADC and digital signal processors are replacing analog shaping amplifier cir
In this paper,a time-switched space-time (TSST) coded orthogonal frequency division multiplexing (OFDM) schcme against the time-varying channels is proposed.In
For the complex questions of Chinese question answering system,we propose an answer extraction method with discourse structure feature combination.This method u
The boundary mesh of the casting model was determined by direct calculation on the triangular facets extracted from the STL file of the 3D model.Then the inner
The hydrophobic films of TixOy-CmHn deposited from mixture gases of titanium isopropoxide (TTIP) and oxygen by plasma enhanced chemical vapor deposition (PECVD)
Water-assisted injection molding (WAIM),a newly developed fluid-assisted injection molding technology has drawn more and more attentions for the energy saving,s