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Acetohydroxyacid synthase (AHAS, EC 4.1.3.18) catalyses the first step in branched-chain amino acid biosynthesis and is the target for sulfonylurea and imidazolinone herbicides, which act as potent and specific inhibitors. Mutants of the enzyme have been identified that are resistant to particular herbicides. However, the selectivity of these mutants(More)
CTB-MPR is a fusion protein between the B subunit of cholera toxin (CTB) and the membrane-proximal region of gp41 (MPR), the transmembrane envelope protein of Human immunodeficiency virus 1 (HIV-1), and has previously been shown to induce the production of anti-HIV-1 antibodies with antiviral functions. To further improve the design of this candidate(More)
A new hardware-friendly bi-exponential fluorescence lifetime imaging (FLIM) algorithm has been proposed. Compared to conventional FLIM software, the proposed algorithms are noniterative offering direct calculation of lifetimes and therefore suitable for real-time applications. They are applicable to single-channel or 2D multichannel time-correlated(More)
The application of biological impedance measurement demands for high-accuracy and fast-speed. A novel measurement system for biological impedance measurement based on automatic balancing bridge is proposed. Besides the improvement on accuracy introduced by bridge method, the utilization of the Least Mean Square (LMS) method guarantees the measurement speed.(More)
The definitions of narrowband signals are summarized. The method of modeling wideband signals received by an array antenna based on power spectral density is proposed. The effects of bandwidth on Minimum Description Length (MDL) criteria algorithm are simulated. The simulation shows the efficiency of the proposed modeling method.
RATIONALE Analog-to-digital converter (ADC)-based acquisition systems are widely applied in time-of-flight mass spectrometers (TOFMS) due to their ability to record the signal intensity of all ions within the same pulse. However, the acquisition system raises the requirement for data throughput, along with increasing the conversion rate and resolution of(More)
Estimation of signal parameters via rotational invariance techniques is a classical algorithm widely used in array signal processing for direction-of-arrival estimation of emitters. Inspired by this method, a new signal model and new fluorescence lifetime estimation via rotational invariance techniques (FLERIT) were developed for multiexponential(More)
To satisfy the need of on-board accumulation in time-of-fLight mass spectrometer (TOF-MS) appLications, the paper presents an accumulation algorithm in FPGA based on PipeLine and ping-pong operation. The accumulation algorithm is verified on a signal averager hardware platform which takes XILiNX VIRTEX-5 FPGA as the processing core. The caChe module,(More)
With the fierce increasing of population, prospect for air condition in Beijing is overwhelmingly negative. Transportation takes a great part in the total carbon emissions and the percentage keeps going up. In this paper, a Beijing transportation system model is built using System Dynamics and four sub-systems are considered which are cars, bus, taxies and(More)