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Stabilization of Boolean control networks with state-triggered impulses

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Science China(Information Sciences) 2022年第3期65卷 123-137页

作者： Rongpei ZHOU Yuqian GUO Xinzhi liu Weihua gui School of Automation Central South University Department of Applied Mathematics University of Waterloo

Previously, impulses were used to model abrupt changes in dynamic biological systems. This paper introduces a hybrid-index model that can characterize instantaneity of the impulsive behavior more effectively, compared with the existing impulsive Boolean network models. Using the hybrid-index model,we investigate the set stabilization of Boolean control networks with state-triggered impulses in the hybriddomain and the time-domain. We establish necessary and sufficient conditions for set stabilizability in the hybrid and time domains, using the methods of k-domain and quotient mapping, respectively. Further, we obtain algorithms for constructing all hybrid-optimal and time-optimal set stabilizers by partitioning the state space into layers. The relationships between different set stabilizabilities are summarized. In addition,we have shared two examples to demonstrate the main results.

关键词： Boolean control networks set stabilization state-triggered impulses hybrid-index model semi-tensor product of matrices

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Empirical Likelihood in Generalized Linear Models with Working Covariance Matrix

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Acta Mathematicae Applicatae Sinica 2022年第1期38卷 87-97页

作者： xiu-qing ZHOU Qi-bing GAO Chun-hua ZHU xiu-li DU liu-liu MAO School of Mathematical Science Nanjing Normal UniversityNanjing 210097China School of Statistics and Mathematics Nanjing Audit UniversityNanjing 211815China

Empirical likelihood in generalized linear models with multivariate responses and working covariance matrix is *** the weakest assumption on eigenvalues of Fisher’s information matrix and some other regular conditions,we prove that the non-parametric Wilk’s property still holds,that is,the empirical log-likelihood ratio at the true parameter values converges to the standard chi-square *** simulations are given to verify our theoretical result.

关键词： generalized linear models empirical likelihood multivariate response working covariance matrix

Relative Entropy and Mean Li-Yorke Chaos Along Some Good Sequences

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Acta Mathematica Sinica,English Series 2021年第12期37卷 1947-1954页

作者： Pei WANG Er Cai CHEN xiu xiu liu Xiao Yao ZHOU Basic Teaching Department Nanjing University Jinling CollegeNanjing 210089P.R.China School of Mathematical Sciences and Institute of Mathematics Nanjing Normal UniversityNanjing 210023P.R.China

In this article,we showed that positive relative entropy implies mean Li-Yorke chaos along some good sequences in the *** result extended Li and Qiao’s result in[***.,186(2018),153-173].

关键词： Relative entropy mean Li-Yorke chaos fiber relative Pinskerσ-algebra

Duality Computing in Quantum Computers

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Communications in Theoretical Physics 2008年第12期50卷 1303-1306页

作者： LONG gui-Lu liu Yang Key Laboratory of Atomic and Molecular Nanosciencs and Department of Physics Tsinghua University Beijing 100084China Tsinghua National Laboratory for Information Science and Technology Beijing 100084 China

In this letter,we propose a duality computing mode,which resembles particle-wave duality property whena quantum system such as a quantum computer passes through a *** this mode,computing operations arenot necessarily *** duality mode provides a natural link between classical computing and quantum *** addition,the duality mode provides a new tool for quantum algorithm design.

关键词： duality computer duality quantum computer duality computing mode

Metallographic etching and microstructure characterization of NiCrMoV rotor steels for nuclear power

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International Journal of Minerals,Metallurgy and Materials 2013年第12期20卷 1164-1169页

作者： Peng liu Feng-gui Lu Xia liu Yu-lai Gao School of Materials Science and Engineering Shanghai University School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai Turbine Plant

The grain size of prior austenite has a distinct influence on the microstructure and final mechanical properties of steels. Thus, it is significant to clearly reveal the grain boundaries and therefore to precisely characterize the grain size of prior austenite. For NiCrMoV rotor steels quenched and tempered at high temperature, it is really difficult to display the grain boundaries of prior austenite clearly, which limits a further study on the correlation between the properties and the corresponding microstructure. In this paper, an effective etchant was put forward and further optimized. Experimental results indicated that this agent was effective to show the details of grain boundaries, which help analyze fatigue crack details along the propagation path. The optimized corrosion agent is successful to observe the microstructure characteristics and expected to help analyze the effect of microstructure for a further study on the mechanical properties of NiCrMoV rotor steels used in the field of nuclear power.

关键词： metallography etching austenite grain size and shape etchants nuclear power plants

Multi-color space threshold segmentation and self-learning k-NN algorithm for surge test EUT status identification

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Frontiers of Mechanical Engineering 2016年第3期11卷 311-315页

作者： Jian HUANG gui-xiong liu School of Mechanical & Automotive Engineering South China University of Technology Guangzhou 510641 China

The identification of targets varies in different surge tests. A multi-color space threshold segmentation and self-learning k-nearest neighbor algorithm （k-NN） for equipment under test status identification was proposed after using feature matching to identify equipment status had to train new patterns every time before testing. First, color space （L＊a＊b＊, hue saturation lightness （HSL）, hue saturation value （HSV）） to segment was selected according to the high luminance points ratio and white luminance points ratio of the image. Second, the unknown class sample Sr was classified by the k-NN algorithm with training set T~ according to the feature vector, which was formed from number ofpixels, eccentricity ratio, compact- ness ratio, and Euler＇s numbers. Last, while the classification confidence coefficient equaled k, made Sr as one sample ofpre-training set Tz＇. The training set Tz increased to Tz＋1 by Tz＇ if Tz＇ was saturated. In nine series of illuminant, indicator light, screen, and disturbances samples （a total of 21600 frames）, the algorithm had a 98.65% identification accuracy, also selected five groups of samples to enlarge the training set from To to T5 by itself. Keywords multi-color space, k-nearest neighbor algorithm （k-NN）, self-learning, surge test

关键词： multi-color space k-nearest neighbor algorithm (k-NN) self-learning surge test

C57BL/6新生乳鼠肠神经胶质细胞的提取与培养

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中国组织工程研究 2025年第31期29卷 6656-6660页

作者：赵楠丁勇修航刘鹏飞梁国刚大连医科大学附属第一医院中西医结合临床国家重点学科实验室辽宁省大连市116000 大连医科大学附属第一医院普外三科辽宁省大连市116000

背景:炎症性肠病的发病机制涉及炎症、免疫激活、内脏高敏感、肠道菌群失调等,其中炎症促使免疫细胞释放炎症递质,损伤肠神经系统。肠神经胶质细胞是肠神经系统的重要组成部分,是研究肠道神经炎症的良好细胞。原代肠神经胶质细胞对于探... 详细信息

背景:炎症性肠病的发病机制涉及炎症、免疫激活、内脏高敏感、肠道菌群失调等,其中炎症促使免疫细胞释放炎症递质,损伤肠神经系统。肠神经胶质细胞是肠神经系统的重要组成部分,是研究肠道神经炎症的良好细胞。原代肠神经胶质细胞对于探索肠神经系统疾病的细胞疗法具有至关重要的作用,而目前获得该细胞的方法大多较繁琐,因此找到一种便捷、快速提取该细胞的方法十分关键。目的:建立优化分离培养及鉴定小鼠肠神经胶质细胞的方法。方法:通过过量吸入异氟烷处死0-7 d龄C57BL/6乳鼠,将其浸泡于体积分数75%乙醇消毒后腹正中线开腹取出十二指肠(幽门下1 cm至屈氏韧带上1 cm),用1 mL注射器充满DPBS反复冲洗肠内容物至肠道半透明,剥离肠系膜及血管。将十二指肠剪至1 mm大小,放入含0.25%EDTA胰酶中消化20 min后加入等量DMEM/F12完全培养基终止消化,用100μm细胞滤器过滤后离心,加入1 mL DMEM/F12完全培养基重悬后培养细胞,细胞贴壁生长密度至80%时消化传代。细胞培养至第3代时用标记肠神经胶质细胞的胶质纤维酸性蛋白进行免疫荧光鉴定。结果与结论:分离培养的细胞胶体饱满,突起向外延展,可以传代,胶质纤维酸性蛋白染色阳性。该方法可成功分离培养肠神经胶质细胞,且操作简便,为肠神经系统的病理生理学研究提供稳定的模型。

关键词：肠神经胶质细胞乳鼠细胞培养炎症性肠病肠神经系统胶质纤维酸性蛋白工程化细胞

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List Total Colorings of Planar Graphs without Triangles at Small Distance

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Acta Mathematica Sinica,English Series 2011年第12期27卷 2437-2444页

作者： Bin liu Jian Feng HOU gui Zhen liu Department of Mathematics Ocean University of China Qingdao 266100 P. R. China Center for Discrete Mathematics Fuzhou University Fuzhou 350002 P. R. China School of Mathematics Shandong University Ji＇nan 250100 P. R. China

Suppose that G is a planar graph with maximum degree △. In this paper it is proved that G is total-（△ ＋ 2）-choosable if （1） △ ≥ 7 and G has no adjacent triangles （i.e., no two triangles are incident with a common edge）; or （2） △ ≥6 and G has no intersecting triangles （i.e., no two triangles are incident with a common vertex）; or （3） △ ≥ 5, G has no adjacent triangles and G has no k-cycles for some integer k ∈ {5, 6}.

关键词： List total coloring choosability planar graph

Nicotinic Acetylcholine Receptor Gene Family of the Pea Aphid,Acyrthosiphon pisum

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Journal of Integrative Agriculture 2013年第11期12卷 2083-2091页

作者： liu Yi-peng LIN Ke-jian liu Yang gui Fu-rong WANG gui-rong State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection Chinese Academy of Agricultural Sciences College of Plant Protection Yunnan Agricultural University

The nicotinic acetylcholine receptors （nAchRs） are cholinergic receptors that form ligand-gated ion channels by ifve subunits in insect and vertebrate nervous systems. The insect nAChR is the molecular target of a class of insecticides, neonicotinoids. Here, we identiifed and cloned 11 candidate nAChR subunit genes in Acyrthosiphon pisum using genome-based bioinformatics combined modern molecular techniques. Most A. pisum nAChRs including α1, α2, α3, α4, α6, α8, and β1 show highly sequence identities with the counterparts of other insects examined. Expression proifles analysis showed that all subunit genes were expressed in adult head. At least two subunits have alternative splicing that obviously increase A. pisum nicotinic receptor diversity. This study will be invaluable for exploring the molecular mechanisms of neonicotinoid-like insecticides in sucking pests, and for ultimately establishing the screening platform of novel insecticides.

关键词： Acyrthosiphon pisum nicotinic acetylcholine receptor alternative splicing expression profile