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A delayed predator-prey system with impulsive diffusion between two patches

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International Journal of Biomathematics 2017年第1期10卷 175-194页

作者： Hong-Li Li Long Zhang zhi-dong teng Yao-Lin Jiang College of Mathematics and System SciencesXinjiang University Urumqi 830046 P. R. China

In most models of population dynamics, diffusion between two patches is assumed to be either continuous or discrete. However, in the real world, it is often the case that diffusion occurs at certain moment every year, impulsive diffusion can provide a more suitable manner to model the actual dispersal （or migration） behaviors for many eco- logical species. In addition, it is generally recognized that some kinds of time delays are inevitable in population interactions. In view of these facts, a delayed predator-prey system with impulsive diffusion between two patches is proposed. By using compari- son theorem of impulsive differential equation and some analysis techniques, criteria on the global attractivity of predator-extinction periodic solution are established, sufficient conditions for the permanence of system are obtained. Finally, numerical simulations are presented to illustrate our theoretical results.

关键词： Predator-prey delay impulsive diffusion global attractivity permanence.

Lotka-Volterra型N-种群竞争系统的持久性和稳定性

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数学学报（中文版） 2002年第5期45卷 905-918页

作者：滕志东新疆大学数学系新疆乌鲁木齐830046

本文研究一类具有无穷时滞的概周期Lotka-Volterra型N-种群竞争系统的持久性和全局渐近稳定性.一些新的充分条件被得到.

关键词： Lotka-Volterra型持久性稳定性 N-种群竞争系统

CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-Peng Wang Guo-Cui Mao Hui-Lin Jiang Bao-Xia dong Yun-Lei teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： Metal hydride Ni catalysts Carbonate Metal-carbonate interface

Permanence in Nonautonomous Predator-prey Lotka-Volterra Systems

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Acta Mathematicae Applicatae Sinica 2002年第3期18卷 411-422页

作者： Wu-jun Sun, zhi-dong teng, Yuan-hong YuDepartment of Applied Mathematics. Shanghai Jiaotong University, Shanghai 200030, ChinaDepartment of Mathematics, Xinjiang University. Urumqi 830046.Institute of Applied Mathematics, Academy of Mathematics and System Sciences, Chinese Academy of Sciences, Beijing 100080, China Department of Applied Mathematics Shanghai Jiaotong University Shanghai China Department of Mathematics Xinjiang University Urumqi China Institute of Applied Mathematics Academy of Mathematics and System Sciences Chinese Academy of Sciences Beijing China

In this paper some easily verifiable sufficient conditions on the permanence of solutions for general nonautonomous two-species predator-prey model are established. These new criteria improve and extend the results gi... 详细信息

关键词： Nonautonomous Lotka-Volterra system predator-prey permanence extinction

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基于级联森林的控制流错误检测优化算法

小型微型计算机系统 2022年第5期43卷 1088-1095页

作者：董志腾顾晶晶南京航空航天大学计算机科学与技术学院南京211106

在单粒子翻转引起的瞬时故障中,控制流错误占很大比例.主流的控制流错误软件检测方法依靠插桩标签来检测控制流错误.但基于标签的检测算法很难在标签插桩的开销和错误检测率之间找到一个平衡.本文提出一种智能的基本块拆分方法,在不用... 详细信息

在单粒子翻转引起的瞬时故障中,控制流错误占很大比例.主流的控制流错误软件检测方法依靠插桩标签来检测控制流错误.但基于标签的检测算法很难在标签插桩的开销和错误检测率之间找到一个平衡.本文提出一种智能的基本块拆分方法,在不用修改原有检测算法的基础上,提升控制流错误的检测率,同时尽可能的减小额外开销.首先,使用GDB调试工具和LLVM Pass文件,对程序进行故障注入实验并提取特征;其次,使用级联森林模型筛选出程序中易发生控制流错误的基本块,并对其进行智能拆分,使基于标签的检测算法能够在拆分点进行标签插桩;最后,在单标签算法CFCSS和双标签算法RCFC上进行验证实验,均取得很好的实验效果.本文提出的方法几乎可以在所有的基于标签的检测算法上使用,并能在提高检错能力的同时,具有较低的时空开销.

关键词：控制流错误检测 LLVM 级联森林单粒子翻转

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变指标中心BMO空间

数学学报（中文版） 2018年第4期61卷 641-650页

作者：王定怀刘宗光周疆滕志东新疆大学数学与系统科学学院乌鲁木齐830046 中国矿业大学数学学院北京100083

本文引进变指标中心有界平均振荡函数空间.作为应用,得到了Hardy算子及其共轭算子的交换子在变指标勒贝格空间上有界性的特征刻画.另外,还考虑了交换子在变指标Herz空间上的向量值不等式.

关键词：中心BMO空间特征刻画交换子 Hardy算子变指标

Non-coding RNAs in acute ischemic stroke:from brain to periphery

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Neural Regeneration Research 2025年第1期20卷 116-129页

作者： Shuo Li Zhaohan Xu Shiyao Zhang Huiling Sun Xiaodan Qin Lin Zhu teng Jiang Junshan Zhou Fuling Yan Qiwen Deng Department of Neurology Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina Department of Neurology Zhongda HospitalSchool of MedicineSoutheast UniversityNanjingJiangsu ProvinceChina General Clinical Research Center Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina

Acute ischemic stroke is a clinical emergency and a condition with high morbidity,mortality,and *** predictive,diagnostic,and prognostic biomarkers and effective therapeutic targets for acute ischemic stroke remain *** innovations in high-throughput gene sequencing analysis,many aberrantly expressed non-coding RNAs(ncRNAs)in the brain and peripheral blood after acute ischemic stroke have been found in clinical samples and experimental *** expressed ncRNAs in the post-stroke brain were demonstrated to play vital roles in pathological processes,leading to neuroprotection or deterioration,thus ncRNAs can serve as therapeutic targets in acute ischemic ***,distinctly expressed ncRNAs in the peripheral blood can be used as biomarkers for acute ischemic stroke prediction,diagnosis,and *** particular,ncRNAs in peripheral immune cells were recently shown to be involved in the peripheral and brain immune response after acute ischemic *** this review,we consolidate the latest progress of research into the roles of ncRNAs(microRNAs,long ncRNAs,and circular RNAs)in the pathological processes of acute ischemic stroke–induced brain damage,as well as the potential of these ncRNAs to act as biomarkers for acute ischemic stroke prediction,diagnosis,and *** from this review will provide novel ideas for the clinical application of ncRNAs in acute ischemic stroke.

关键词： acute ischemic stroke apoptosis blood–brain barrier damage circular RNAs excitatory toxicity long non-coding RNAs microRNAs neuroinflammation non-coding RNAs oxidative stress

Partial extinction, permanence and global attractivity innonautonomous n-species Lotka-Volterra competitivesystems with impulses

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Applied Mathematics(A Journal of Chinese Universities) 2011年第2期26卷 161-176页

作者： HOU Juan teng zhi-dong GAO Shu-jing College of Mathematics and Systems Science Xinjiang UniversityUrumqi 830046P.R.China Department of Applied Mathematics Xinjiang University of Finance and EconomicsUrumqi830012P.R.China College of Mathematics and Computer Science Gannan Normal UniversityGanzhou 341000P.R.China

In this paper, the qualitative properties of general nonautonomous Lotka-Volterran-species competitive systems with impulsive e？ects are studied. Some new criteria on thepermanence, extinction and global attractivity of partial species are established by used themethods of inequalities estimate and Liapunov functions. As applications, nonautonomous twospecies Lotka-Volterra systems with impulses are discussed.

关键词： Nonautonom ous Lotka-Volterra system Impulsive efects Competition Extinction Permanence Global attractivity.

Pharmacological targeting cGAS/STING/NF-κB axis by tryptanthrin induces microglia polarization toward M2 phenotype and promotes functional recovery in a mouse model of spinal cord injury

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Neural Regeneration Research 2025年第11期20卷 3287-3301页

作者： Ziwei Fan Mengxian Jia Jian Zhou Zhoule Zhu Yumin Wu Xiaowu Lin Yiming Qian Jiashu Lian Xin Hua Jianhong dong Zheyu Fang Yuqing Liu Sibing Chen Xiumin Xue Juanqing Yue Minyu Zhu Ying Wang zhihui Huang Honglin teng Department of Orthopedics(Spine Surgery) the First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina School of Pharmacy Hangzhou Normal UniversityHangzhouZhejiang ProvinceChina Department of Neurology The First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina Department of Pathology Affiliated Hangzhou First People’s HospitalSchool of MedicineWestlake UniversityHangzhouZhejiang ProvinceChina Department of Clinical Research Center Affiliated Hangzhou First People’s HospitalSchool of MedicineWestlake UniversityHangzhouZhejiang ProvinceChina

The M1/M2 phenotypic shift of microglia after spinal cord injury plays an important role in the regulation of neuroinflammation during the secondary injury phase of spinal cord *** of shifting microglia polarization from M1(neurotoxic and proinflammatory type)to M2(neuroprotective and anti-inflammatory type)after spinal cord injury appears to be *** possesses an anti-inflammatory biological ***,its roles and the underlying molecular mechanisms in spinal cord injury remain *** this study,we found that tryptanthrin inhibited microglia-derived inflammation by promoting polarization to the M2 phenotype in *** promoted M2 polarization through inactivating the cGAS/STING/NF-κB ***,we found that targeting the cGAS/STING/NF-κB pathway with tryptanthrin shifted microglia from the M1 to M2 phenotype after spinal cord injury,inhibited neuronal loss,and promoted tissue repair and functional recovery in a mouse model of spinal cord ***,using a conditional co-culture system,we found that microglia treated with tryptanthrin suppressed endoplasmic reticulum stress-related neuronal *** together,these results suggest that by targeting the cGAS/STING/NF-κB axis,tryptanthrin attenuates microglia-derived neuroinflammation and promotes functional recovery after spinal cord injury through shifting microglia polarization to the M2 phenotype.

关键词： cGAS/STING functional recovery microglia neuroinflammation neuroprotection nuclear factor-κB polarization spinal cord injury tryptanthrin