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Background The Haemophilus influenzae type b (Hib) conjugate vaccine has been widely used in children to prevent invasive Hib disease because of its strong immunogenicity and antibody response induction relative to the capsular polysaccharide (CPS) antigen. The data from vaccine studies suggest that the conjugate vaccine contains carrier proteins that enhance and/or regulate the antigen’s immunogenicity,...
A 600 kJ high-power sparker is presented. Its operating principle and structure are introduced, together with its key technology and its characteristics. The sparker is composed mainly of a high-voltage DC power supply, four banks of the energy storage capacitors, three-electrode spark gap switches, and discharging electrodes. The discharging current each group is about 100 kA at 8 kV. Also, the technical...
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