Qiaoling Tong

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For a sensorless predictive-peak-current-controlled boost converter, the output voltage steady-state error cannot be eliminated by voltage loop PI controller. The basic cause for this is investigated through analysis and theoretical approaches. To eliminate the voltage steady-state error and achieve high-accuracy current estimation, a comprehensive(More)
OBJECTIVE CXC chemokine receptor 4 (CXCR4) was considered to be an important factor in cancer cell metastasis. This study was aimed to examine the expression of CXCR4 in ovarian cancer and determine the functions and the possible mechanisms of CXCR4 in the progression of ovarian cancer. METHODS CXC chemokine receptor 4 messenger RNA expression in normal(More)
In RFID system, one of the key problems is the collision between tags which lowers the throughput of the system. The Dynamic Framed Slotted ALOHA is a widely used algorithm in the anti-collision field of RFID system. In this paper, we propose a Dynamic Framed Slotted ALOHA Algorithm based on Bayesian Estimation. Compared to the conventional algorithms, our(More)
To realize accurate current control for a boost converter, a precise measurement of the inductor current is required to achieve high resolution current regulating. Current sensors are widely used to measure the inductor current. However, the current sensors and their processing circuits significantly contribute extra hardware cost, delay and noise to the(More)
Hardware/software partitioning is a key problem in hardware/software co-design. This paper presents a new hardware/software partitioning methodology based on improved particle swarm optimization algorithm. The model of the embedded system was constructed by directed acyclic graph to obtain the objective function. Then improvement strategies are introduced(More)