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Fluoroquinolones (FQNs) are broad-spectrum antibacterial agents widely used in animal husbandry and aquaculture. The residues and antimicrobial resistance of such antibiotics are a major public health concern. To realize multianalyte detection of FQN residues, a genetically modified bacterium, Escherichia coli pK12 harboring plasmid pRecAlux3, was constructed in this study to develop a bioluminescent-bacteria-based...
Positive Temperature Coefficient thermistor (PTC) is a key component of fast switch fault current limiter (FCL). Nickel wire is usually selected as PTC for FCL. The mass of the nickel must be big enough to absorb the energy due to the short circuit current, otherwise the temperature will reach melting point of Nickel. But big mass means high costs and big device. Compared with nickel, the resistivity...
Hexagonal CdS thin films with a strong (002) orientation were successfully prepared by chemical bath deposition (CBD) using the reaction between CdCl2 and CS(NH2)2. A commonly available CBD system was successfully modified using a wetting agent (polyglycol) without agitation. The influence of pH value on the chemical bath deposition process was studied. It was found that pH value of the solution plays...
The hexagonal CdS thin films with a strong (002) orientation is successfully prepared by Chemical Bath Deposition (CBD) technique using the reaction between CdCl2, CS(NH2)2. A commonly available CBD system has been successfully modified with wetting agent (poly-glycol) without agitation. In this paper, Studies have been made to understand the effect of bath temperature on the transient process and...
Nano-SiOx and micro-SiO2 particles were homogeneously dispersed in low-density polyethylene with a method of double-solution mixture. Both kinds of the composites were sputtered with Au and Ag on both surfaces as electrodes, respectively. Space charge in the composites was investigated with pulsed electro-acoustic method (PEA). It is shown that space charge distribution in the sample with different...
Nano-SiOx and micro-SiO2 particles were homogeneously dispersed in low-density polyethylene with double-solution method. The dc breakdown strength of the composite containing various contents of nano-SiOx was experimentally investigated, as well as the composite containing micro-SiO2. The breakdown strength of the nanocomposite is greater than that of pure LDPE. For example, the breakdown strength...
The composite of nano-SiOx and low-density polyethylene is prepared with the double-solution method. Charging currents of the composite at same dc stress, as well as discharging currents, are recorded with Keithley 6517A. It is found that the curves of charging and discharging currents decrease with charging times. Transferring those charging and discharging currents from time domain into frequency...
The dielectric behavior of a composite system of low-density polyethylene filled with nano-Ag is investigated with time-domain method at the room temperature (293 K). It is shown that the charging vs. time of the composite is lower than that of the pure low-density, however, the depolarization of the composite is faster than that of the pure low-density polyethylene. It seems that nano-Ag/LDPE composite...
The composite of nano-SiOx and low-density polyethylene is prepared with the double-solution method. Space charge distribution in the composite with various nano-SiOx contents is carried out by pulsed electro-acoustic method. It is shown that the amount of space charge in the composite increases with the nano-SiOx content. The space charge in the composite under 50 kV/mm dc stress is mainly hetero,...
The composite of nano-SiOx and low-density polyethylene is prepared with the double-solution method. Charging currents of the composite at different dc stress, as well as discharging currents, are recorded with Keithley 6517A. It is found that the curves of charging and discharging currents increase with electrical field. Transferring those charging and discharging currents from time domain into frequency...
Restraining the impurity ions' conductance under high temperature and preventing movement and accumulating of the ions under high field are concerned much in power silicon devices' surface passivation. More attention should be paid to the high temperature conductance characteristic of silicone resin modified polyester (SP), which is used in power silicon device's surface protection. The resistivity-temperature...
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