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A zero index metamaterial lens (ZIML) is proposed in this paper for antenna directivity and gain enhancement. The zero index metamaterial (ZIM) is constructed from both electric metamaterial with near-zero permittivity and magnetic metamaterial-modified split ring resonator (MSRR)-with near-zero permeability. The ZIM unit cell is numerically simulated in CST MWS. The scattering parameters show that...
The population distribution of Particle Swarm Optimization (PSO) directly concerns global convergence and searching efficiency of PSO. The reasonable setting of population distribution and operational parameters is an important problems in the application of PSO to perform optimization calculation. Based on the study on how to set the population distribution, such conclusion can be drawn that the...
Improve performance management and evaluation mechanism is an important condition to improve government efficiency. The establishment of Assessment methods determines scientific validity of assessment in the system of government performance evaluation. This paper creatively proposed combining applies the method of AHP, DEA and EOS to make quantitative assessment of government performance, and then...
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