Yuejuan Wang

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From the practical engineering point of view, path tracking control for mobile robots has been investigated in this paper. It escapes from planning trajectory with the planned geometric path and enable direct tracking of the geometric path. The kinematic model of mobile robots and the desired path are described in polar coordinate. The influence on control(More)
Surface properties of rare-earth (RE) doped ceria (RE = Sm, Gd, Pr, and Tb) were investigated by UV (325 nm) and visible (514, 633, and 785 nm) Raman spectroscopy, combined with UV-vis diffuse reflectance spectroscopy, high-resolution transmission electron microscopy, and X-ray photoelectron spectra techniques. It was found that the optical absorption(More)
Adiponectin exerts an antidiabetic function through the adiponectin receptors 1 and 2 (AdipoR1 and AdipoR2). The mechanism regulating the expression of adiponectin receptors remains to be elucidated. Bioinformatics analysis demonstrated that microRNA (miR)‑218 targets the 3' untranslated region (3'UTR) of the AdipoR2 mRNA. The present study aimed to(More)
This article proposes a robust adaptive trajectory control scheme for robotic trajectory tracking under uncertainties. The control scheme is globally exponentially convergent without the knowledge of the robotic dynamics and is simple in structure with a small computation. It can make the trajectory error convergent to an arbitrary small region. Lyapunov(More)
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