In this paper, three types of EIT metamaterials are presented and numerically investigated. The type I metamaterial consists of the SR and the SRR, which are coupled with each other and assigned as the dark resonator ...
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Antenna lens can obviously eincrease the gain of the antenna by method of gathering. Also, metamaterial lens can achieve the gathering effect with aspheric surface. In this paper, a new type of metamaterial lens is de...
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This paper proposes a method for classification of incomplete data using neural network ensembles. In the method, the incomplete data set is analyzed and projected into a group of complete data subsets that give a ful...
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The importance of incremental learning in changing environments has been acknowledged in recent years. In this paper we present an ensemble learning method for supervised learning with drifting concepts. The method em...
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Cryptographic approaches are vulnerable to impersonation attacks when nodes become compromised. Meanwhile, trust-based judgment and confirmation of cluster heads in WSN imposes higher communication cost. Trust managem...
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Along with the DAC technology evolved, it is possible to implement direct RF synthesis using exclusively digital technologies and it promote the rapid progress of transmitter technology for software defined radio (SDR...
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The design based on avalanche photo diode(APD)is described in this paper to provide a extract the weak signal from the *** amplifying circuit based on negative feedback current input can realize high sensitivity,low n...
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The design based on avalanche photo diode(APD)is described in this paper to provide a extract the weak signal from the *** amplifying circuit based on negative feedback current input can realize high sensitivity,low noise amplifying,and the OPA657 chip is selected as the ***280 active low-pass filter is used to suppress high frequency noise effectively and the output signal to noise ratio(SNR) is improved by 5 *** theory analysis and the experiment results show that the minimum detection power of the circuit is about 1.9nW to the light of980nm.
In order to ensure the stability of temperature of the blackbody radiation source,a high-performance,high-precision temperature control system is *** system is based on the thermo-electric cooler(TEC) which is control...
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In order to ensure the stability of temperature of the blackbody radiation source,a high-performance,high-precision temperature control system is *** system is based on the thermo-electric cooler(TEC) which is controlled by ADN8830 *** temperature of the blackbody radiation source is sensed by the Pt100 thermistor,and then the temperature signal is converted into the voltage signal by the temperature transmitter to *** PID closed feedback loop is adopted for the temperature *** the test of the designed temperature control system,the result shows that the set-up time of this system is about 340 s and the temperature control accuracy is ±0.02 ℃.
In this literature, a novel left-handed circularly polarized voltage-controlled leaky wave antenna is presented with a scanning range of 0° to -37° with a perfect axial ratio at the most time below 2 dB. The...
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In this paper, a novel approach is presented to calculate the lumped parameters of right/left-handed Structures. By this method, the equivalent circuit can be extracted, and the left/right handed features can be certi...
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