The inclusion complexation behavior of 6,6′ trimethylenediseleno bridged bis(β cyclodextrin)(1) and 6,6′ ( o phenylenediseleno) bridged bis( β cyclodextrin)(2) with dye molecules was investigated by means of fluor...The inclusion complexation behavior of 6,6′ trimethylenediseleno bridged bis(β cyclodextrin)(1) and 6,6′ ( o phenylenediseleno) bridged bis( β cyclodextrin)(2) with dye molecules was investigated by means of fluorescence and ultraviolet spectrometric titrations at 25℃ in phosphate buffer solution( pH 7.20 ). The results obtained indicated that bis( β cyclodextrin)s could not only significantly enhance the original binding ability of parent β cyclodextrin, but also be used to recognize the structural difference of guest molecules through the cooperative binding of the closely located two cyclodextrin cavities. This phenomenon was discussed from the viewpoint of size fit concept and multiple recognition mechanism between the host and guest.展开更多
A novel matching method for simultaneous multi-target recognition is proposed by jointly considering target's prior scattering knowledge and the polarization parameters of radar echoes. The matching coefficients a...A novel matching method for simultaneous multi-target recognition is proposed by jointly considering target's prior scattering knowledge and the polarization parameters of radar echoes. The matching coefficients are calculated for the judgment. MATLAB simulations show that several targets can be accurately recognized simultaneously, and a high recognition probability can be achieved in Monte Carlo simulations. The total execution time can be remarkably reduced in the Field Programmable Gate Array (FPGA) implementation of the matching procedure.展开更多
文摘The inclusion complexation behavior of 6,6′ trimethylenediseleno bridged bis(β cyclodextrin)(1) and 6,6′ ( o phenylenediseleno) bridged bis( β cyclodextrin)(2) with dye molecules was investigated by means of fluorescence and ultraviolet spectrometric titrations at 25℃ in phosphate buffer solution( pH 7.20 ). The results obtained indicated that bis( β cyclodextrin)s could not only significantly enhance the original binding ability of parent β cyclodextrin, but also be used to recognize the structural difference of guest molecules through the cooperative binding of the closely located two cyclodextrin cavities. This phenomenon was discussed from the viewpoint of size fit concept and multiple recognition mechanism between the host and guest.
文摘A novel matching method for simultaneous multi-target recognition is proposed by jointly considering target's prior scattering knowledge and the polarization parameters of radar echoes. The matching coefficients are calculated for the judgment. MATLAB simulations show that several targets can be accurately recognized simultaneously, and a high recognition probability can be achieved in Monte Carlo simulations. The total execution time can be remarkably reduced in the Field Programmable Gate Array (FPGA) implementation of the matching procedure.
