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Frontiers of Mathematics in China 2021年第1期16卷 59-93页

作者： Chunxiao GUO yiju chen Ji SHU Xinguang YANG Department of Mathematics China University of Mining and TechnologyBeijing 100083China Department of Mathematics Sichuan UniversityChengdu 610065China School of Mathematical Science Laurent Mathematics Center and V.C.&:V.R.Key LabSichuan Normal UniversityChengdu 610066China Department of Mathematics and Information Science Henan Normal UniversityXinxiang 453007China

The regularity of random attractors is considered for the non-autonomous fractional stochastic FitzHugh-Nagumo *** prove that the system has a pullback random attractor that is compact in Hs(R^(n))×L^(2)(R^(n))and attracts all tempered random sets of L^(2)(R^(n))×L^(2)(R^(n))in the topology of Hs(R^(n))×L^(2)(R^(n))with s∈(0,1).By the idea of positive and negative truncations,spectral decomposition in bounded domains,and tail estimates,we achieved the desired results.

关键词： Fractional stochastic FitzHugh-Nagumo system random attractor asymptotic compactness

Pullback Random Attractors for Non-Autonomous Stochastic Fractional FitzHugh-Nagumo System

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Journal of Applied Mathematics and Physics 2020年第1期8卷 115-131页

作者： Chunxiao Guo yiju chen Yanfeng Guo Department of Mathematics China University of Mining and Technology Beijing Beijing China School of Mathematics and Physics China University of Geosciences Wuhan China School of Science Guangxi University of Science and Technology Liuzhou China

This paper is concerned with the asymptotic behavior of solutions for a class of non-autonomous fractional FitzHugh-Nagumo equations deriven by additive white noise. We first provide some sufficient conditions for the existence and uniqueness of solutions, and then prove the existence and uniqueness of tempered pullback random attractors for the random dynamical system generated by the solutions of considered equations in an appropriate Hilbert space. The proof is based on the uniform estimates and the decomposition of dynamical system.

关键词： Non-Autonomous Stochastic Fractional FitzHugh-Nagumo System Random Attractor Additive White Noise

Strain heterogeneity,cooccurrence network,taxonomic composition and functional profile of the healthy ocular surface microbiome

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Eye and Vision 2021年第1期8卷 47-58页

作者： Yutong Kang Shudan Lin Xueli Ma Yanlin Che yiju chen Tian Wan Die Zhang Jiao Shao Jie Xu Yi Xu Yongliang Lou Meiqin Zheng Eye Hospital and School of Ophthalmology and Optometry Wenzhou Medical UniversityWenzhouZhejiangChina National Clinical Research Center for Ocular Diseases WenzhouZhejiangChina Wenzhou Key Laboratory of Sanitary Microbiology Key Laboratory of Laboratory MedicineMinistry of EducationSchool of Laboratory Medicine and Life SciencesWenzhou Medical UniversityWenzhouZhejiang 325035China

Background:There is growing evidence indicating that the microbial communities that dwell on the human ocular surface are crucially important for ocular surface health and *** is known about interspecies interactions,functional profiles,and strain heterogeneity across individuals in healthy ocular surface ***:To comprehensively characterize the strain heterogeneity,cooccurrence network,taxonomic composition and functional profile of the healthy ocular surface microbiome,we performed shotgun metagenomics sequencing on ocular surface mucosal membrane swabs of 17 healthy ***:The healthy ocular surface microbiome was classified into 12 phyla,70 genera,and 140 *** number of species in each healthy ocular surface microbiome ranged from 6 to 47,indicating differences in microbial diversity among *** species with high relative abundances and high positivity rates were Streptococcus pyogenes,Staphylococcus epidermidis,Propionibacterium acnes,Corynebacterium accolens,and Enhydrobacter aerosaccus.A correlation network analysis revealed a competitive interaction of Staphylococcus epidermidis with Streptococcus pyogenes in ocular surface microbial *** epidermidis and Streptococcus pyogenes revealed phylogenetic diversity among different *** the functional level,the pathways related to transcription were the most *** also found that there were abundant lipid and amino acid metabolism pathways in the healthy ocular surface ***:This study explored the strain heterogeneity,cooccurrence network,taxonomic composition,and functional profile of the healthy ocular surface *** findings have important significance for the future development of probiotic-based eye therapeutic drugs.

关键词： Healthy ocular surface microbiome Cooccurrence network Functional composition Strain level

空心钉联合续骨活血汤加味治疗中青年股骨颈骨折

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中医药临床杂志 2020年第4期32卷 727-731页

作者：陈奕居辛晓春湖南中医药大学湖南长沙410208 湖南省长沙市中医医院湖南长沙410002

目的:探讨空心钉联合续骨活血汤加味对中青年股骨颈骨折患者的疗效。方法:采用回顾性分析法选取2015年12月~2018年12月期间我院收治的中青年股骨颈骨折患者60例,按照随机数字分组法,是否使用中药,分为对照组与观察组,每组各30例。对照... 详细信息

目的:探讨空心钉联合续骨活血汤加味对中青年股骨颈骨折患者的疗效。方法:采用回顾性分析法选取2015年12月~2018年12月期间我院收治的中青年股骨颈骨折患者60例,按照随机数字分组法,是否使用中药,分为对照组与观察组,每组各30例。对照组采用空心钉固定术的常规治疗方案,观察组在常规治疗的基础上加用续骨活血汤加味。对骨折临床愈合率、2组的骨密度、髋关节Harris评分、术后并发症进行统计。结果:观察组术后3个月、6个月骨密度改变具有统计学意义(P0.05);2组临床愈合比差距具有统计学意义,总有效率(80.00%VS93.33%)(P<0.05)。结论:空心钉联合续骨活血汤加味治疗中青年股骨颈骨折患者,可以促进骨折愈合率,改善髋关节功能,提高临床手术成功率。

关键词：续骨活血汤中青年股骨颈骨折骨折愈合骨密度髋关节功能

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海洋粉质粘土共振柱试验研究

世界地震工程 2010年第S1期26卷 1-5页

作者：吕小飞陈培雄杨义菊陈小玲李冬国家海洋局第二海洋研究所浙江杭州310012

利用DRNEVICH LONG-TOR型共振柱仪研究杭州湾浅层粉质粘土的动力学性质,阐述动模量和阻尼比随应变增加的变化趋势,分析动模量衰减规律。最大动模量主要与围压Pc、土的固结密度、动应变和初始孔隙比等因素有关;杭州湾粉质粘土动模量随应... 详细信息

利用DRNEVICH LONG-TOR型共振柱仪研究杭州湾浅层粉质粘土的动力学性质,阐述动模量和阻尼比随应变增加的变化趋势,分析动模量衰减规律。最大动模量主要与围压Pc、土的固结密度、动应变和初始孔隙比等因素有关;杭州湾粉质粘土动模量随应变的变化规律符合土的非线性、滞后性和变形累积三方面的一般规律;杭州湾粉质粘土与黄河三角洲地区的归一化应力应变曲线相似,而动阻尼比相差较大。

关键词：共振柱试验粉质粘土动弹性模量动剪切模量阻尼比

中药外敷内服治疗急性痛风性关节炎的临床观察

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中国医药科学 2021年第1期11卷 21-24页

作者：刘庭国辛晓春陈奕居湖南中医药大学湖南长沙410000 长沙市中医医院骨伤四病区(南院) 湖南长沙410000

目的观察三黄膏外敷联合当归活血液内服治疗急性痛风性关节炎瘀热阻滞型的临床疗效。方法选取2018年12月至2019年12月在长沙市中医医院门诊治疗的急性痛风性关节炎患者68例,采用随机数字表法分为对照组和治疗组,每组各34例。对照组口服... 详细信息

目的观察三黄膏外敷联合当归活血液内服治疗急性痛风性关节炎瘀热阻滞型的临床疗效。方法选取2018年12月至2019年12月在长沙市中医医院门诊治疗的急性痛风性关节炎患者68例,采用随机数字表法分为对照组和治疗组,每组各34例。对照组口服秋水仙碱和塞来昔布;治疗组外敷三黄膏和内服当归活血液。治疗7 d,观察两组治疗前与治疗1、4、7 d后关节疼痛视觉模拟评分法(VAS)和关节肿胀评分;两组临床疗效;治疗前后尿酸(UA)、红细胞沉降率(ESR)、C反应蛋白(CRP)水平;两组不良反应发生情况。结果治疗7 d后,两组临床疗效比较,差异无统计学意义(P>0.05),但治疗组的总有效率(97.1%)高于对照组的总有效率(88.2%)。治疗1 d后,两组VAS评分与治疗前比较均改善(P0.05);治疗组与治疗前比较关节肿胀好转(P0.05)。治疗4、7 d后,两组关节肿胀和VAS评分与治疗前比较均继续改善(P<0.05);治疗组均优于对照组(P<0.05)。治疗后,两组ESR、CRP、UA均下降,且治疗组低于对照组,差异有统计学意义(P<0.05)。结论三黄膏外敷联合当归活血液内服治疗急性痛风性关节炎起效快,疗效好。

关键词：急性痛风性关节炎三黄膏当归活血液内外合治瘀热阻滞型

On computing minimal H-eigenvalue of sign-structured tensors

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Frontiers of Mathematics in China 2017年第6期12卷 1289-1302页

作者： Haibin chen yiju WANG School of Management Science Qufu Normal University Rizhao 276826 China

Finding the minimal H-eigenvalue of tensors is an important topic in tensor computation and numerical multilinear algebra. This paper is devoted to a sum-of-squares （SOS） algorithm for computing the minimal H-eigenvalues of tensors with some sign structures called extended essentially nonnegative tensors （EEN-tensors）, which includes nonnegative tensors as a subclass. In the even-order symmetric case, we first discuss the positive semi-definiteness of EEN-tensors, and show that a positive semi-definite EEN-tensor is a non- negative tensor or an M-tensor or the sum of a nonnegative tensor and an M-tensor, then we establish a checkable sufficient condition for the SOS decomposition of EEN-tensors. Finally, we present an efficient algorithm to compute the minimal H-eigenvalues of even-order symmetric EEN-tensors based on the SOS decomposition. Numerical experiments are given to show the efficiency of the proposed algorithm.

关键词： Extended essentially nonnegative tensor (EEN-tensor) positive semi-definiteness H-eigenvalue sum-of-squares (SOS) polynomial

Solution structures of tensor complementarity problem

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Frontiers of Mathematics in China 2018年第4期13卷 935-945页

作者： Xueyong WANG Haibin chen yiju WANG School of Management Science Qufu Normal University Rizhao 276800 China

We introduce two new types of tensors called the strictly semimonotone tensor and the range column sufficient tensor and explore their structure properties. Based on the obtained results, we make a characterization to... 详细信息

关键词： Strictly semimonotone tensors column sufficiency tensors productinvariance permutation invariance

High-order sum-of-squares structured tensors:theory and applications

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Frontiers of Mathematics in China 2020年第2期15卷 255-284页

作者： Haibin chen yiju WANG Guanglu ZHOU School of Management Science Qufu Normal UniversityRizhao 276826China Department of Mathematics and Statistics Curtin UniversityPerthWAAustralia

Tensor decomposition is an important research area with numerous applications in data mining and computational *** important class of tensor decomposition is sum-of-squares(SOS)tensor *** tensor decomposition has a close connection with SOS polynomials,and SOS polynomials are very important in polynomial theory and polynomial *** this paper,we give a detailed survey on recent advances of high-order SOS tensors and their *** first shows that several classes of symmetric structured tensors available in the literature have SOS decomposition in the even order symmetric ***,the SOS-rank for tensors with SOS decomposition and the SOS-width for SOS tensor cones are ***,a sharper explicit upper bound of the SOS-rank for tensors with bounded exponent is provided,and the exact SOS-width for the cone consists of all such tensors with SOS decomposition is *** potential research directions in the future are also listed in this paper.

关键词： Sum-of-squares(SOS)tensor positive semi-definite(PSD)tensor H-eigenvalue structured tensor

云南省芒市蠓虫Tibet orbivirus和Manglie virus的分离及其共感染研究

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病毒学报 2023年第3期39卷 764-774页

作者：杨怡铃何于雯杨振兴陈易居朱燕涛殷建忠王静林云南省畜牧兽医科学院云南省热带亚热带动物病毒病重点实验室昆明650224 昆明医科大学昆明650500

西藏环状病毒(Tibet orbivirus,TIBOV)是一种2009年新发现的环状病毒,它对家养动物具有潜在的危害。为了了解云南省西部边境地区芒市蠓虫中TIBOV流行情况,以及在TIBOV和Manglie virus(MaV)共感染情况下,MaV对TIBOV在细胞上增殖的影响。2... 详细信息

西藏环状病毒(Tibet orbivirus,TIBOV)是一种2009年新发现的环状病毒,它对家养动物具有潜在的危害。为了了解云南省西部边境地区芒市蠓虫中TIBOV流行情况,以及在TIBOV和Manglie virus(MaV)共感染情况下,MaV对TIBOV在细胞上增殖的影响。2018年7月我们在云南省德宏州芒市采集蠓虫标本,采用细胞进行病毒分离,获得2株阳性分离物,编号分别为MS18C217-8和MS18C217-9。MS18C217-8株阳性分离物接种C6/36细胞后72h出现细胞病变,细胞病变特点为圆缩、折光性变强和脱落等,而接种BHK-21细胞后168h没有出现明显细胞病变;MS18C217-9株阳性分离物接种BHK-21细胞后72h出现细胞变圆、脱落和破碎等细胞病变,接种C6/36细胞后168h没有出现明显细胞病变。分别采用虫媒病毒特异引物进行RT-PCR,MS18C217-9株阳性分离物TIBOV特异引物扩增阳性,而MS18C217-8株阳性分离物MaV特异引物扩增阳性。测序后,MS18C217-8获得1133个核苷酸序列,MS18C217-9获得1085个核苷酸序列。遗传进化分析结果显示,MS18C217-9株病毒与中国云南、广东、西藏等省、自治区和日本等地区分离的7株TIBOV位于同一进化分支,核苷酸同源性在93.1%~99.2%之间,提示MS18C217-9株病毒是TIBOV;而MS18C217-8株病毒与2011年和2018年云南分离的2株MaV位于同一进化分支,它们之间核苷酸同源性在96.9%~97.3%之间,提示MS18C217-8株病毒为MaV。TIBOV和MaV两种病毒在C6/36细胞上共感染研究结果显示,2种病毒共感染后TIBOV滴度低于TIBOV单独感染病毒滴度,提示MaV可能降低了共感染期间TIBOV复制。本研究首次在蠓虫中分离到MaV,并在同一地点采集的蠓虫中同时分离到了TIBOV和MaV,提示这两种病毒在当地的蠓虫中存在共流行。MaV在媒介中的感染可能会抑制TIBOV复制或传播。该研究结果不仅丰富了我国虫媒病毒种类资源,同时也为阻断动物虫媒病毒病的流行提供新的思路。

关键词：西藏环状病毒昆虫特异性病毒蠓虫分离鉴定共感染