Cunjian Xia

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Iron containing 3-Hydroxyanthranilate oxidase (3HAO) converts 3-hydroxyanthranilate (3HAA) and dioxygen into a precursor which spontaneously converts to quinolinic acid (QA). 3HAO participates in de novo biosynthesis of NAD in mammalian kidney and liver, and it is present in low concentrations in brain where its function is controversial. However, QA(More)
To improve the disturbance rejection property of permanent magnet synchronous motor (PMSM) speed control system, the integral sliding mode control (ISMC) method is introduced in the control design of speed loop. However, the simulation and implementation results show that it is difficult to balance the chattering and the antidisturbance capacity. To this(More)
Quinolinic acid (2,3-pyridine dicarboxylic acid), a biological intermediate in nicotinamide adenine dinucleotide (NAD) biosynthesis in microbes and mammals and a brain excitotoxin, is not fluorescent nor electrochemically active and its detection sensitivity by UV absorption is comparatively low. Quinolinic acid was successfully derivatized in water-based(More)
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