Qingsong Xu

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Adaptive Sliding Mode Control With Perturbation Estimation and PID Sliding Surface for Motion Tracking of a Piezo-Driven Micromanipulator

Yangmin Li, Qingsong Xu
IEEE Transactions on Control Systems Technology
2010

This paper proposes an improved sliding mode control with perturbation estimation (SMCPE) featuring a PID-type sliding surface and adaptive gains for the motion tracking control of a micromanipulator… (More)

Key wavelengths screening using competitive adaptive reweighted sampling method for multivariate calibration.

Hongdong Li, Yizeng Liang, Qingsong Xu, Dongsheng Cao
Analytica chimica acta
2009

By employing the simple but effective principle 'survival of the fittest' on which Darwin's Evolution Theory is based, a novel strategy for selecting an optimal combination of key wavelengths of… (More)

Molecular characterization and expression analysis of nuclear oligomerization domain proteins NOD1 and NOD2 in grass carp Ctenopharyngodon idella.

W. Q. Chen, Qingsong Xu, Ming Xian Chang, Pin Nie, K. M. Peng
Fish & shellfish immunology
2010

Nuclear oligomerization domains (NODs) are cytosolic pattern recognition receptors (PRRs) to detect bacterial component. In this study, the molecular cloning and genomic characterization of grass… (More)

Stiffness analysis for a 3-PUU parallel kinematic machine

Yangmin Li, Qingsong Xu
2007

This paper presents the stiffness characteristics of a three-prismatic-universal–universal (3-PUU) translational parallel kinematic machine (PKM). The stiffness matrix is derived intuitively based… (More)

Molecular characterization and expression analysis of the IFN-gamma related gene (IFN-gammarel) in grass carp Ctenopharyngodon idella.

W. Q. Chen, Qingsong Xu, +4 authors Pin Nie
Veterinary immunology and immunopathology
2010

Interferon gamma (IFN-gamma), the only member of the type II class of interferons, has been identified in teleost fish. In addition to the IFN-gamma gene, fish possess an IFN-gamma related gene… (More)

Design and Robust Repetitive Control of a New Parallel-Kinematic XY Piezostage for Micro/Nanomanipulation

Yangmin Li, Qingsong Xu
IEEE/ASME Transactions on Mechatronics
2012

This paper presents mechanism and controller design procedures of a new piezoactuated flexure XY stage for micro-/nanomanipulation applications. The uniqueness of the proposed stage lies in that it… (More)

Dahl Model-Based Hysteresis Compensation and Precise Positioning Control of an XY Parallel Micromanipulator With Piezoelectric Actuation

Qingsong Xu, Yangmin Li
2010

This paper presents a new control scheme for the hysteresis compensation and precise positioning of a piezoelectrically actuated micromanipulator. The scheme employs an inverse Dahl model-based… (More)

Ig heavy chain genes and their locus in grass carp Ctenopharyngodon idella.

Fei Xiao, Y. P. Wang, +6 authors Pin Nie
Fish & shellfish immunology
2010

The cDNA and genomic sequences of IgD and IgZ were characterized in grass carp Ctenopharyngodon idella in the present study, and with the identification of a BAC clone covering zeta, mu, and delta… (More)

Roles of N-acetylglucosaminyltransferase III in epithelial-to-mesenchymal transition induced by transforming growth factor β1 (TGF-β1) in epithelial cell lines.

Qingsong Xu, Tomoya Isaji, +5 authors Jianguo Gu
The Journal of biological chemistry
2012

The epithelial-to-mesenchymal transition (EMT) plays crucial roles in embryonic development, wound healing, tissue repair, and cancer progression. Results of this study show how transforming growth… (More)

Design and Analysis of a Totally Decoupled Flexure-Based XY Parallel Micromanipulator

Yangmin Li, Qingsong Xu
IEEE Transactions on Robotics
2009

In this paper, a concept of totally decoupling is proposed for the design of a flexure parallel micromanipulator with both input and output decoupling. Based on flexure hinges, the design procedure… (More)

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