36 Result(s)

Article

The non-muscle-myosin-II heavy chain Myh9 mediates colitis-induced epithelium injury by restricting Lgr5+ stem cells

Lgr5+ stem cells are crucial to gut epithelium homeostasis, and therapies targeting these cells hold promise for treatment of gastrointestinal diseases. Here we report that the non-muscle-myosin-II (NMII) heav...

Bing Zhao, Zhen Qi, Yehua Li, Chongkai Wang, Wei Fu, Ye-Guang Chen in Nature Communications (2015)

Article

Brightness temperature model of sea foam layer at L-band

Permittivity of a sea foam layer is very important in investigating ocean brightness temperature model. At microwave frequency, the Rayleigh method is developed to estimate the effective permittivity of the se...

Shubo Liu, Yanxia Jia, Zhen Qi, Enbo Wei in Journal of Ocean University of China (2015)

Reference Work Entry In depth

Forward and Inverse Parameter Estimation for Metabolic Models

I-Chun Chou, Zhen Qi, Melissa L. Kemp… in Encyclopedia of Systems Biology (2013)

Article

Analysis of cost functions for retrieving sea surface salinity

Two kinds of Bayesian-based cost functions (i.e., the unconstrained cost function and parameter-constrained cost function) are investigated for retrieving the sea surface salinity (SSS). In low SSS regions, we ha...

Zhen Qi, Enbo Wei in Journal of Ocean University of China (2012)

Chapter

Mathematical Models of Dopamine Metabolism in Parkinson’s Disease

As discussed in Chap. 1 and elsewhere in this volume, a feature of Parkinson’s disease (PD) is a reduction in dopamine concentration in the striatum, caused by progressive loss of dopamine neurons in the subst...

Zhen Qi, Gary W. Miller, Eberhard O. Voit in Systems Biology of Parkinson's Disease (2012)

Chapter

Mathematical Models in Schizophrenia

Schizophrenia is a severe and complex mental disorder that causes an enormous societal and financial burden. Our current understanding of schizophrenia is very fragmented, and the disease is still regarded as ...

Zhen Qi, Gary W. Miller, Eberhard O. Voit in Handbook of Schizophrenia Spectrum Disorde… (2011)

Article

Improved Image Based Visual Servoing with Parallel Robot

The position regulation problem of an eye-in-hand type of parallel robot based pointing systems (PRBPS) is considered in this paper. A fuzzy logic system is first designed to compensate for the uncertainties o...

Zhen Qi, John E. McInroy in Journal of Intelligent and Robotic Systems (2008)

Article

A Novel Pose Estimation Algorithm Based on Points to Regions Correspondence

A novel pose estimation algorithm is put forward in this paper. Given the points on an object and the convex regions in which the correspondent image points lie, the concrete values of position and orientation (

John E. McInroy, Zhen Qi in Journal of Mathematical Imaging and Vision (2008)

Article

Trajectory Tracking with Parallel Robots Using Low Chattering, Fuzzy Sliding Mode Controller

This paper proposes a trajectory tracking scheme which belongs to the sliding mode control (SMC) for the 4-degree-of-freedom (DOF) parallel robots. Two fuzzy logic systems (FLS) are first put forward to replac...

Zhen Qi, John E. McInroy, Farhad Jafari in Journal of Intelligent and Robotic Systems (2007)

Article

Autosomal Similarity Revealed by Eukaryotic Genomic Comparison

To describe eukaryotic autosomes quantitatively and determine differences between them in terms of amino acid sequences of genes, functional classification of proteins, and complete DNA sequences, we applied t...

Zhen Qi, Yan Cui, Weiwu Fang, Lunjiang Ling, Runsheng Chen in Journal of Biological Physics (2004)

Article

The growth of Si1−x−yGexCy alloys with high carbon content by ultra-high vacuum chemical vapor deposition

**gyun Huang, Zhizhen Ye, Zhen Qi, Duanlin Que in Journal of Materials Science Letters (2001)