7,500 research outputs found
Robust adaptive neural backstepping control for a class of nonlinear systems with dynamic uncertainties
No full textThis paper is concerned with adaptive neural control of nonlinear strict-feedback systems with nonlinear uncertainties, unmodeled dynamics, and dynamic disturbances. To overcome the difficulty from the unmodeled dynamics, a dynamic signal is introduced. Radical basis function (RBF) neural networks are employed to model the packaged unknown nonlinearities, and then an adaptive neural control approach is developed by using backstepping technique. The proposed controller guarantees semiglobal boundedness of all the signals in the closed-loop systems. A simulation example is given to show the effectiveness of the presented control scheme. © 2014 Hongyan Yang et al
Supplemental Material, Supplementary_figures - Low-Density Lipoprotein Receptor-Related Protein 6 Is Essential for Trophoblast Survival and Invasion
No full textSupplemental Material, Supplementary_figures for Low-Density Lipoprotein Receptor-Related Protein 6 Is Essential for Trophoblast Survival and Invasion by Lei Li, Jipeng Wan, Jing Xue, Hongyan Li, Shan Wang, Qian Zhou, Yu Zhou, and Xietong Wang in Reproductive Sciences</p
A Case Study: Students’ Perception of a Collaborative Game-Based Virtual Learning Environment
No full textRuthenium(II)-Catalyzed Remote C–H Alkylation of Arenes Using Diverse N-Directing Groups through Aziridine Ring Opening
No full textPrecambrian evolution and cratonization of the Tarim Block, NW China: petrology, geochemistry, Nd-isotopes and U-Pb zircon geochronology from Archaean gabbro-TTG-potassic granite suite and Paleoproterozoic metamorphic belt
No full textAbstract not availableChuan-Lin Zhang, Huai-Kun Li, M. Santosh, Zheng-Xiang Li, Hai-Bo Zou, Hongyan Wang, Haimin Y
Study on the Teaching Path of Integrating Hongyan Spirit into High School Philosophy and Culture Course
No full textHongyan spirit is a characteristic local red culture and an important part of the spiritual pedigree. It has rich ideological and political resources and can inject spiritual motivation into the growth of high school students. Based on the analysis of the connotation and value of Hongyan Spirit and the overview of the content related to Hongyan Spirit in the course of Philosophy and Culture in high school, this paper proposes to develop school-based curriculum, innovate teaching methods, combine online and offline, and experience roles, enhance the cognition of specific paths, enhance students' patriotic feelings, strengthen students' ideals and beliefs, and implement the goal of cultivating virtues and cultivating people. To provide students with mental calcium
Periacma fengxianensis Wang & Zheng 1995
No full textPeriacma fengxianensis Wang & Zheng, 1995 (Figure 12) Periacma fengxianensis Wang & Zheng, 1995: 12. Wing expanse: male 12.0–14.0 mm. Material examined: Holotype: „, Zhouzhi (34 ° 10 9 N, 108 ° 12 9 E), Shaanxi Province, 1750 m, 20 July 1987, coll. Houhun Li. Allotype: ♀, Fengxian (33 ° 55 9 N, 106 ° 31 9 E), Shaanxi Province, 1600 m, 13 July 1988, coll. Houhun Li. Paratypes: 1 „, 2 ♀♀, 16– 20 July 1987, other same data as holotype; 1 „, 14 July 1988, same locality data as allotype. Additional material: 2 „„, Ningshan (33 ° 19 9 N, 108 ° 20 9 E), Shaanxi Province, 3 July 1995, coll. Hongyan Qin. Distribution: China (Shaanxi). Remarks: This species is characterized by the gnathos with the ventral margin straight and the aedeagus with the distal portion dentate at both sides in the male genitalia; and the corpus bursae with two differently shaped signa in the female genitalia.Published as part of Wang, S. X. & Li, H. H., 2006, Review of the genus Periacma Meyrick (Lepidoptera, Oecophoridae) from China, with descriptions of four new species, pp. 2371-2393 in Journal of Natural History 40 (41 - 43) on page 2380, DOI: 10.1080/00222930601088123, http://zenodo.org/record/523174
Adaptive Neural Control of Nonlinear Systems With Unknown Control Directions and Input Dead-Zone
No full textThis paper presents an adaptive neural control approach for nonstrict-feedback nonlinear systems in presence of unmodeled dynamics, unknown control directions and input dead-zone nonlinearity. To handle the difficulty due to uncertain control directions, Nussbaum gain functions are applied. Based on the structural characteristic of radial basis function neural networks, a backstepping-based adaptive neural control algorithm is developed. The main contributions of this paper lie in the fact that a backstepping-based neural control algorithm is developed for nonstrict-feedback nonlinear systems with unmodeled dynamics, unknown control directions and actuator dead-zone, and the total number of adaptive laws is not greater than the order of control system. As a beneficial result, the controller is much easier to be implemented in practice with less computational burden. A simulation example is given to reveal the viability of the presented approach. It is demonstrated by both theoretical analysis and simulation study that the presented control strategy ensures the semiglobally uniform ultimate boundedness of all closed-loop system signals
Supplemental Material - Inhibition of GPR30 sensitized gefitinib to NSCLC cells via regulation of epithelial-mesenchymal transition
No full textSupplemental Material for Inhibition of GPR30 sensitized gefitinib to NSCLC cells via regulation of epithelial-mesenchymal transition by Hongyan Jiang, Xiaomin Yang, Jiang Ning, Shufen Zhang, Ying Cai, Liang Wang, Jinsong Yang, Guodong Xu, Wei Chen, and Jianfei Wang in International Journal of Immunopathology and Pharmacology</p
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