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| 1 | Approximately optimal tracking control for discrete time-delay systems with disturbances显示文摘Optimal tracking control (OTC) for discrete time-delay systems affected by persistent disturbances with quadratic performance index is considered. By introducing a sensitivity parameter,the original OTC problem is transformed into a series of two-point boundary value (TPBV) problems without time-advance or time-delay terms. The obtained OTC law consists of analytic feedforward and feedback terms and a compensation term which is the sum of an infinite series of adjoint vectors. The analytic feedforward and feedback terms can be found by solving a Riccati matrix equation and two Stein matrix equations. The compensation term can be obtained by using an iteration formula of the adjoint vectors. Observers are constructed to make the approximate OTC law physically realizable. A simulation example shows that the approximate approach is effective in tracking the reference input and robust with respect to exogenous persistent disturbances. | Gongyou Tang Huiying Sun Haiping Pang | 2008 | Progress in Natural Science:Materials International2008，18，2： | 5 |
| 2 | Global robust optimal sliding mode control for uncertain affine nonlinear systems显示文摘The problem of robustifying linear quadratic regulators(LQRs) for a class of uncertain affine nonlinear systems is considered.First,the exact linearization technique is used to transform an uncertain nonlinear system into a linear one and an optimal LQR is designed for the corresponding nominal system.Then,based on the integral sliding mode,a design approach to robustifying the optimal regulator is studied.As a result,the system exhibits global robustness to uncertainties and the ideal sliding mode dynamics is the same as that of the optimal LQR for the nominal system.A global robust optimal sliding mode control(GROSMC) is realized.Finally,a numerical simulation is demonstrated to show the effectiveness and superiority of the proposed algorithm compared with the conventional optimal LQR. | Pang Haiping Chen Xia | 2009 | Journal of Systems Engineering and Electronics2009，20，4： | 5 |
| 3 | Pan-genome of Raphanus highlights genetic variation and introgression among domesticated,wild,and weedy radishes显示文摘Post-polyploid diploidization associated with descending dysploidy and interspecific introgression drives plant genome evolution by unclear mechanisms.Raphanus is an economically and ecologically important Brassiceae genus and model system for studying post-polyploidization genome evolution and introgres-sion.Here,we report the de novo sequence assemblies for 11 genomes covering most of the typical sub-species and varieties of domesticated,wild and weedy radishes from East Asia,South Asia,Europe,and America.Divergence among the species,sub-species,and South/East Asian types coincided with Quaternary glaciations.A genus-level pan-genome was constructed with family-based,locus-based,and graph-based methods,and whole-genome comparisons revealed genetic variations ranging from single-nucleotide polymorphisms(SNPs)to inversions and translocations of whole ancestral karyotype(AK)blocks.Extensive gene flow occurred between wild,weedy,and domesticated radishes.High fre-quencies of genome reshuffling,biased retention,and large-fragment translocation have shaped the genomic diversity.Most variety-specific gene-rich blocks showed large structural variations.Extensive translocation and tandem duplication of dispensable genes were revealed in two large rearrangement-rich islands.Disease resistance genes mostly resided on specific and dispensable loci.Variations causing the loss of function of enzymes modulating gibberellin deactivation were identified and could play an important role in phenotype divergence and adaptive evolution.This study provides new insights into the genomic evolution underlying post-polyploid diploidization and lays the foundation for genetic improve-ment of radish crops,biological control of weeds,and protection of wild species'germplasms. | Xiaohui Zhang Tongjin Liu Jinglei Wang Peng Wang Yang Qiu Wei Zhao Shuai Pang Xiaoman Li Haiping Wang Jiangping Song Wenlin Zhang Wenlong Yang Yuyan Sun Xixiang Li | 2021 | Molecular Plant2021，14，12： | 3 |
| 4 | Effects of the polysaccharide from Pholiota nameko on human cytokine network in serum显示文摘 | Haiping Li Xiaojuan Liu Yang Li Yanjun Hua Dexian Zhi Guangchang Pang | 2011 | International Journal of Biological Macromolecules2011，，1： | 1 |
| 5 | Robust Optimal Sliding Mode Control with Application to Electrical Servo Drive 显示文摘 | Pang Haiping Tang Gongyou | 2007 | Proceedings of the 4th International Conference on Impulsive and Hybrid Dynamical Systems2007，，： | 1 |
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