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Control of Fractal Erosion of Safe Basins in a Holmes-Duffing System via Delayed Position Feedback

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Chinese Physics Letters 2011年第1期28卷 36-38页

作者： SHANG hui-lin School of Mechanical and Automation Engineering Shanghai Institute of Technology Shanghai 200235

A linear delayed position feedback control is applied to control the erosion of safe basins in a Holmes-Duffing system. The conditions of fractal erosion of the safe basin of the controlled system on the basis that the range of time delay leading to good control is obtained by the Melnikov method. It is found that the increasing time delay can reduce the basin erosion under a weak and positive feedback g^in. Then the evolutions of safe basins with time delay are presented in detail by the fourth Runge-Kutta and Monte-Carlo methods, which shows that the safe basin of the controlled Holmes Dulling system can be expanded, and its fractal can be reduced by the increasing time delay. These results suggest that delayed position feedbacks can be used as a good approach to control the erosion of safe basins.

关键词： Computational physics Statistical physics and nonlinear systems

Parallel processing architecture of H.264 adaptive deblocking filters

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第8期10卷 1160-1168页

作者： Hu WEI Tao lin Zheng-hui lin Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200240 China

In H.264,computational complexity and memory access of deblocking filters are variable,dependent on video *** paper proposes a VLSI architecture of deblocking filters with adaptive dynamic power,which avoids redundant computations and memory accesses by precluding the blocks that can be *** vertical and horizontal edges are simulta-neously processed in an advanced scan order to speed up the *** a result,dynamic power of the proposed architecture can be reduced adaptively(up to about 89%) for different videos,and the off-chip memory access is improved when compared to previous ***,the processing capability of the proposed architecture is in particular appropriate for real-time deblocking of high-definition television(HDTV,1920×1080 pixels/frame,60 frames/s video signals) video operation at 62 *** the proposed architecture,power can be reduced by up to about 89% and processing time by from 25% to 81% compared with previous designs.

关键词： Deblocking filter Adaptive dynamic power Parallel processing Pipeline H.264

Kernel-based auto-associative P-type iterative learning control strategy

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Journal of Systems Engineering and Electronics 2020年第2期31卷 383-392页

作者： LAN Tianyi lin hui LI Bingqiang School of Automation Northwestern Polytechnical UniversityXi’an 710129China

In order to accelerate the convergence speed of iterative learning control(ILC), taking the P-type learning algorithm as an example, a correction algorithm with kernel-based autoassociative is proposed for the linear system. The learning mechanism of human brain associative memory is introduced to the traditional ILC. The control value of the subsequent time is precorrected with the current time information by association in each iterative learning process. The learning efficiency of the whole system is improved significantly with the proposed algorithm. Through the rigorous analysis, it shows that under this new designed ILC scheme, the uniform convergence of the state tracking error is guaranteed. Numerical simulations illustrate the effectiveness of the proposed associative control scheme and the validity of the conclusion.

关键词： iterative learning control(ILC) associative learning convergence speed tracking convergence

Estimating RNA Loop Entropies Using a New Nucleobase Model and Sequential Monte Carlo Method

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Chinese Physics Letters 2011年第8期28卷 336-339页

作者： lin hui ZHANG Jian School of Business Nanjing UniversityNanjing 210093 National Laboratory of Solid State Microstructure Department of PhysicsNanjing UniversityNanjing 210093

We report a new scheme that is designed to accurately and efficiently compute the entropy of RNA *** scheme is based on a new RNA nucleobase discrete state(RNAnbds)model and a Sequential Monte Carlo(SMC)*** novelty of the RNAnbds model is that it directly represents the conformation of the RNA nucleobases,instead of the RNA *** test the performance of this new scheme,we calculate the entropies for RNA hairpin loops and compare the results with the exact computational values obtained by an enumeration strategy and with the experimental *** is found that the SMC method gives almost indistinguishable results from enumerations for short *** long hairpin loops,it also provides a good estimation that agrees with experiments.

关键词： base scheme backbone

Description of a new species of the genus Rhynchina Guenée, 1854(Lepidoptera, Erebidae, Hypeninae) from Southeastern Tibet,China

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Journal of Forestry Research 2015年第3期26卷 735-738页

作者： Zhao-hui Pan hui-lin Han Institute of Plateau Ecology Agriculture and Animal Husbandry College of Tibet University School of Forestry Northeast Forestry University

A new species of the genus Rhynchina Guenee, 1854, R. tongmaia Pan and Han, sp. n. is described from China. This species is compared with a superciaUy similar congener, R. rivuligera Butler, 1889 with illustrations of... 详细信息

关键词： Erebidae Hypeninae Rhynchina Newspecies China

Complete Proof Systems for Amortised Probabilistic Bisimulations

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Journal of Computer Science & Technology 2016年第2期31卷 300-316页

作者： Li-Li Xu hui-Min lin State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China Ecole P olytechnique P alaiseau 91120 France

The notion of amortisation has been integrated in quantitative bisimulations to make long-term behavioral comparisons between nondeterministic systems. In this paper, we present sound and complete proof systems for amortised strong probabilistic bisimulation and its observational congruence on a process algebra with probability and nondeterminism, and prove their soundness and completeness. Our results make it possible to reason about long-term （observable） probabilistic behaviors by syntactic manipulations.

关键词： axiomatization probabilistic calculus for communication systems (CCS) probabilistic automata amortisedbisimulation

Adaptive adjustment of iterative learning control gain matrix in harsh noise environment

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Journal of Systems Engineering and Electronics 2013年第1期24卷 128-134页

作者： Bingqiang Li hui lin Hualing Xing School of Automation Northwestern Polytechnical University School of Water Resources and Architectural Engineering Northwest A&F University

For the robustness problem of open-loop P-type iterative learning control under the influence of measurement noise which is inevitable in actual systems, an adaptive adjustment algorithm of iterative learning nonlinear gain matrix based on error amplitude is proposed and two nonlinear gain functions are given. Then with the help of Bellman-Gronwall lemma, the robustness proof is derived. At last, an example is simulated and analyzed. The results show that when there exists measurement noise, the proposed learning law adjusts the learning gain matrix on line based on error amplitude, thus can make a compromise between learning convergence rate and convergence accuracy to some extent： the fast convergence rate is achieved with high gain in initial learning stage, the strong robustness and high convergence accuracy are achieved at the same time with small gain in the end learning stage, thus better learning results are obtained.

关键词： iterative learning control open-loop P-type learninglaw nonlinear gain measurement noise robustness.

Endothelial cell metabolism in sepsis

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World Journal of Emergency Medicine 2023年第1期14卷 10-16页

作者： Jue-xian Wei hui-lin Jiang Xiao-hui Chen Emergency Department the Second Affiliated HospitalGuangzhou Medical UniversityGuangzhou 510260China

BACKGROUND:Endothelial dysfunction in sepsis is a pathophysiological feature of septic organ *** cells(ECs)exhibit specific metabolic traits and release metabolites to adapt to the septic state in the blood to maintain vascular ***:Web of Science and PubMed were searched from inception to October 1,*** search was limited to the English language *** reviewers independently identified studies related to EC metabolism in *** exclusion criteria were duplicate articles according to multiple search ***:Sixty articles were included,and most of them were cell and animal *** studies reported the role of glycolysis,oxidative phosphorylation,fatty acid metabolism,and amino acid metabolism in EC *** glycolysis,oxidative phosphorylation,fatty acid metabolism and amino acid ***,dysregulation of EC metabolism can contribute to sepsis ***:There are few clinical studies on EC metabolism in *** research mainly focuses on basic research,but some scientific problems have also been ***,this review may provide an overall comprehension and novel aspects of EC metabolism in sepsis.

关键词： Sepsis Endothelium Metabolism Glycolysis Oxidative phosphorylation Fatty acid metabolism Amino acid metabolism

A Trajectory-Oriented Carriageway-Based Road Network Data Model, Part 1: Background

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Geo-Spatial Information Science 2006年第1期9卷 65-70页

作者： LI Xiang lin hui Laboratory for Geolnformation Science The Chinese University of Hong Kong Shatin N.T. Hong Kong

This is the first of a three-part series of pape rs which introduces a general background of building trajectory-oriented road net work data models, including motivation, related works, and basic concepts. The p urpose of the series is to develop a trajectory-oriented road network data mode l, namely carriageway-based road network data model (CRNM). Part 1 deals with t he modeling background. Part 2 proposes the principle and architecture of the CR NM. Part 3 investigates the implementation of the CRNM in a case study. In the p resent paper, the challenges of managing trajectory data are discussed. Then, de veloping trajectory-oriented road network data models is proposed as a solution and existing road network data models are reviewed. Basic representation approa ches of a road network are introduced as well as its constitution.

关键词： trajectory road network data model carriageway GIS GIS-T