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Positively charged air particles are harmful to health. This paper proposes the use of negatively charged UV antenna to neutralize the positively charged pollutants into a DC electricity without any external power supply. The UV antenna is negatively charged by a natural source of negative ions. The output voltage reflects on the density of the atmospheric positive ions. The proposed system generates...
This paper explores the feasibility of wireless energy harvesting by direct voltage multiplication on lateral waves. Whilst free space is undoubtedly a known medium for wireless energy harvesting, space waves are too attenuated to support realistic transmission of wireless energy. A layer of thin stratified dielectric material suspended in mid-air can form a substantially less attenuated pathway,...
This paper presents a novel inverse scattering method for biomedical application using microwaves. The method is established based on an evolutionary algorithm-particle swarm optimization method which can achieve accurate results for high dimensional problems. The use of time domain data allows multiple frequency selectivity. 2D FDTD simulations have shown that the method attains super-resolution...
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