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系统科学与数学 2013年第5期33卷 579-584页

作者：郑莲长江师范学院数学与计算机科学学院涪陵408100

拟变分不等式问题是变分不等式问题的一种推广,超平面投影算法是解变分不等式的一种重要方法.通过构造严格分离当前点与拟变分不等式解集的超平面,建立了解拟变分不等式的超平面投影算法.在一定的条件下,证明了该算法的全局收敛性.

关键词：拟变分不等式超平面投影算法 Armijo线性搜寻收敛性

Propagation dynamics of relativistic electromagnetic solitary wave as well as modulational instability in plasmas

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Chinese Physics B 2021年第1期30卷 332-344页

作者： Rong-An Tang Tiao-Fang Liu Xue-Ren Hong Ji-Ming Gao Rui-Jin Cheng You-lian zheng Ju-Kui Xue Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province College of Physics and Electronic EngineeringNorthwest Normal UniversityLanzhou 730070China

By one-dimensional particle-in-cell(PIC) simulations, the propagation and stability of relativistic electromagnetic(EM) solitary waves as well as modulational instability of plane EM waves are studied in uniform cold electron-ion *** investigation not only confirms the solitary wave motion characteristics and modulational instability theory, but more importantly, gives the following findings. For a simulation with the plasma density 10^(23) m^(-3) and the dimensionless vector potential amplitude 0.18, it is found that the EM solitary wave can stably propagate when the carrier wave frequency is smaller than 3.83 times of the plasma frequency. While for the carrier wave frequency larger than that, it can excite a very weak Langmuir oscillation, which is an order of magnitude smaller than the transverse electron momentum and may in turn modulate the EM solitary wave and cause the modulational instability, so that the solitary wave begins to deform after a long enough distance propagation. The stable propagation distance before an obvious observation of instability increases(decreases) with the increase of the carrier wave frequency(vector potential amplitude). The study on the plane EM wave shows that a modulational instability may occur and its wavenumber is approximately equal to the modulational wavenumber by Langmuir oscillation and is independent of the carrier wave frequency and the vector potential *** reveals the role of the Langmuir oscillation excitation in the inducement of modulational instability and also proves the modulational instability of EM solitary wave.

关键词： electromagnetic solitary wave particle-in-cell(PIC)simulation modulational instability Langmuir oscillation

VX-509 attenuates the stemness characteristics of colorectal cancer stem-like cells by regulating the epithelial-mesenchymal transition through Nodal/Smad2/3 signaling

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World Journal of Stem Cells 2024年第2期16卷 207-227页

作者： Yun Yuan Xu-Fan Zhang Yu-Chen Li Hong-Qing Chen Tian Wen Jia-lian zheng Zi-Yi Zhao Qiong-Ying Hu Department of Laboratory Medicine Hospital of Chengdu University of Traditional Chinese MedicineChengdu 610072Sichuan ProvinceChina Department of Nuclear Medicine Hospital of Chengdu University of Traditional Chinese MedicineChengdu 610072Sichuan ProvinceChina College of Medical Technology Chengdu University of Traditional Chinese MedicineChengdu 611137Sichuan ProvinceChina Department of Hepatology Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyang 110032Liaoning ProvinceChina Hospital of Chengdu University of Traditional Chinese Medicine Chengdu 610072Sichuan ProvinceChina Traditional Chinese Medicine Regulating Metabolic Diseases Key Laboratory of Sichuan Province Chengdu 610072Sichuan ProvinceChina

BACKGROUND Colorectal cancer stem cells(CCSCs)are heterogeneous cells that can self-renew and undergo multidirectional differentiation in colorectal cancer(CRC)*** are generally accepted to be important sources of CRC and are responsible for the progression,metastasis,and therapeutic resistance of ***,targeting this specific subpopulation has been recognized as a promising strategy for overcoming *** To investigate the effect of VX-509 on CCSCs and elucidate the underlying *** CCSCs were enriched from CRC cell lines by in conditioned serum-free *** blot,Aldefluor,transwell and tumorigenesis assays were performed to verify the phenotypic characteristics of the *** anticancer efficacy of VX-509 was assessed in HCT116 CCSCs and HT29 CCSCs by performing cell viability analysis,colony formation,sphere formation,flow cytometry,and western blotting assessments in vitro and tumor growth,immunohistochemistry and immunofluorescence assessments in *** Compared with parental cells,sphere cells derived from HCT116 and HT29 cells presented increased expression of stem cell transcription factors and stem cell markers and were more potent at promoting migration and tumori-genesis,demonstrating that the CRC sphere cells displayed CSC ***-509 inhibited the tumor malignant biological behavior of CRC-stem-like cells,as indicated by their proliferation,migration and clonality in vitro,and suppressed the tumor of CCSC-derived xenograft tumors in ***,VX-509 suppressed the CSC character-istics of CRC-stem-like cells and inhibited the progression of epithelial-mesenchymal transition(EMT)signaling in *** was identified as the regulatory factor of VX-509 on CRC stem-like cells through analyses of differen-tially expressed genes and CSC-related database ***-509 markedly downregulated the expression of Nodal and its downstream phosphorylated Smad2/3 to inhibit EMT ***,VX-509 rev

关键词： Colorectal cancer stem cells Stemness VX-509 Epithelial-mesenchymal transition Nodal

Governor Vessel Moxibustion:Ancient Chinese Medical Technology with New Vitality

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Chinese Journal of Integrative Medicine 2017年第5期23卷 396-400页

作者： ZHANG Li QIN Yuan-mei zheng lian-xue ZHANG Min GUO Hui-jun XU Li-ran Li Qiang WANG Dan-ni CHEN Xiu-min Department of Acquired Immune Deficiency Syndrome Treatment and Research Center the First Affiliated Hospital of Henan University of Traditional Chinese Medicine Zhengzhou 450000 China Discipline of Nursing Science the First Affiliated Hospital of Henan University of Traditional Chinese Medicine Zhengzhou 450000 China Department of Cellular Immunology Lab Key Laboraty of Virus Diseases Prevention and Treatment of Traditional Chinese Medicine of Henan Province Zhengzhou 450000 China

Moxibustion is an ancient therapeutic technique used in Chinese medicine. Governor Vessel moxibustion（GVM） was developed from long snake moxibustion, a popular technique used in China＇s Jiangsu and Zhejiang Provinces, and is significantly more effective than general moxibustion. We aimed to review GVM, including its theoretical basis, choices of moxibustion points and materials, operation procedures, clinical applications, and contraindications. This information could increase the appropriate use of GVM and support further in-depth research.

关键词： Governor Vessel moxibustion Chinese medicine moxibustion

A Low-Cost Testbed of Underwater Mobile Sensing Network

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Journal of Shanghai Jiaotong university(Science) 2011年第4期16卷 502-507页

作者：尚桂杨冯正平连琏 School of Naval Architecture Ocean and Civil EngineeringShanghai Jiaotong University

Comprised by a swarm of acoustically linked and cooperative autonomous underwater vehicles(AUVs) with onboard sensors,an underwater mobile sensing network(UMSN) will be a complementary means to fixed observatory networks,*** observatory networks and moored buoy *** has obvious advantages over a single large AUV in higher efficiency due to parallel observation,stronger robustness to vehicle failures and lower *** an UMSN can be viewed as a counterpart of wireless mobile sensing networks for air and terrestrial applications,it is much more challenging due to poor performance of underwater acoustic communication, poor performance of underwater positioning and high degree of uncertainty in vehicle dynamics and underwater *** order to verify key technologies involved in an UMSN,*** of multi-AUVs based on acoustic communication,a low cost testbed has been developed for experimental *** design of both hardware and software is *** the results of a functional test for verification of the effectiveness of the testbed are presented.

关键词： underwater mobile sensing network(UMSN) autonomous underwater vehicle(AUV) testbed coordination and cooperation control

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深圳金融改革创新的演进路径与经验

经济纵横 2019年第4期 103-110页

作者：郑联盛中国社会科学院金融研究所北京100028

深圳是中国改革开放的前沿和成功典范,金融业在深圳改革开放和现代化建设中发挥了重要作用。建市40年来,深圳金融业大致经历了依托优惠政策、快速发展、规范发展和高质量发展四个阶段,外贸金融、金融创新、机构积聚、资本市场发展和区... 详细信息

深圳是中国改革开放的前沿和成功典范,金融业在深圳改革开放和现代化建设中发挥了重要作用。建市40年来,深圳金融业大致经历了依托优惠政策、快速发展、规范发展和高质量发展四个阶段,外贸金融、金融创新、机构积聚、资本市场发展和区域金融合作等是深圳金融发展的重要支撑。深圳金融改革创新的成就在于利用国家的改革开放战略,立足深圳经济金融社会发展的现实,以改革、开放、创新为灵魂,基于金融体系资源配置功能,通过"三个最优"政策创新、多个发展规划引导,金融机构、产品与市场相融合,发挥深港金融要素集聚效应,构建了金融改革创新发展新机制。

关键词：深圳改革开放金融创新市场机制

加快建设金融强国:现实价值、短板约束与重要举措

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改革 2023年第12期 28-40页

作者：郑联盛中国社会科学院金融研究所金融风险与金融监管研究室

加快建设金融强国是党中央作出的重大战略部署,是全面建成社会主义现代化强国的必然要求。中国已是金融大国,但与金融强国目标要求相比仍有较大差距。加快建设金融强国,要加强党中央对金融工作的集中统一领导,完善党领导金融工作的体制... 详细信息

加快建设金融强国是党中央作出的重大战略部署,是全面建成社会主义现代化强国的必然要求。中国已是金融大国,但与金融强国目标要求相比仍有较大差距。加快建设金融强国,要加强党中央对金融工作的集中统一领导,完善党领导金融工作的体制机制;明确发展目标,着重强化服务实体经济、防范化解金融风险和提高金融监管效能;将建设现代金融市场体系作为金融强国建设的首要工作,提升金融市场资源配置功能;推进金融高水平开放,强化内外金融利益关联,大力发展跨境金融基础设施、跨境金融业务和国际金融中心;有效统筹发展和安全,着力实现长期、包容、内外互动的高质量发展,使改革、开放、发展和稳定相互支撑。

关键词：金融强国建设现代金融体系中国式现代化

反向累加生成的特性及GOM(1,1)模型的优化

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系统工程理论与实践 2013年第9期33卷 2306-2312页

作者：练郑伟党耀国王正新南京航空航天大学经济与管理学院南京211106 浙江师范大学经济与管理学院金华321004

针对反向累加序列的生成与建模问题,分析了反向累加生成的准光滑性和准指数规律,进而给出反向累加生成序列的灰建模条件.证明了基于反向累加生成的齐次与非齐次离散指数函数之间的关系,并经过理论推导得到了GOM(1,1)模型的最优背景值.... 详细信息

针对反向累加序列的生成与建模问题,分析了反向累加生成的准光滑性和准指数规律,进而给出反向累加生成序列的灰建模条件.证明了基于反向累加生成的齐次与非齐次离散指数函数之间的关系,并经过理论推导得到了GOM(1,1)模型的最优背景值.结果表明,优化的背景值与GOM(1,1)模型的时间响应函数具有较好的一致性,从而可以在理论上有效提高传统模型的精度.最后通过实例验证了优化模型的实用性与有效性.

关键词： GOM(1,1)模型背景值反向累加生成光滑性

基于经验模式分解与人工神经网络的短期电力负荷预测

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电力系统保护与控制 2009年第23期37卷 66-69,74页

作者：郑连清郑艳秋重庆大学输配电装备及系统安全与新技术国家重点实验室重庆400044

为了有效预测具有一定周期性和随机性的非平稳时间序列的电力负荷,提高预测精度,提出了一种基于经验模式分解(EMD)和人工神经网络(ANN)的电力短期负荷预测方法。该法利用EMD的自适应性,自动地将目标负荷序列分解为若干个独立的内在模式... 详细信息

为了有效预测具有一定周期性和随机性的非平稳时间序列的电力负荷,提高预测精度,提出了一种基于经验模式分解(EMD)和人工神经网络(ANN)的电力短期负荷预测方法。该法利用EMD的自适应性,自动地将目标负荷序列分解为若干个独立的内在模式分量(IMF),对各分量分别进行分析,可准确把握负荷变化特性和环境因素影响。对这些分量采用相匹配ANN模型进行预测,综合得到负荷序列的最终预测结果。仿真试验表明,与传统BP神经网络预测方法相比该方法具有较高的精度和较强的适应能力。

关键词：短期电力负荷经验模式分解内在模式分量人工神经网络

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区间时变时滞线性系统的指数稳定性

东北大学学报（自然科学版） 2014年第9期35卷 1225-1228页

作者：郑连伟宋叔尼东北大学理学院辽宁沈阳110819

基于Lyapunov泛函方法,研究时滞是时变的且属于一个区间的线性时滞系统的指数稳定性.以线性矩阵不等式的形式给出了一个新的指数稳定性判别准则.在估计Lyapunov泛函的导数时,利用凸组合和倒数凸组合方法得到了较小的上界,从而使得到的... 详细信息

基于Lyapunov泛函方法,研究时滞是时变的且属于一个区间的线性时滞系统的指数稳定性.以线性矩阵不等式的形式给出了一个新的指数稳定性判别准则.在估计Lyapunov泛函的导数时,利用凸组合和倒数凸组合方法得到了较小的上界,从而使得到的指数稳定性条件具有较小的保守性.另外,所得状态变量的指数上界只依赖于初始函数本身而不涉及其导数.最后,用数值算例验证了所得方法的有效性.

关键词：时变时滞指数稳定性线性矩阵不等式倒数凸组合 Lyapunov泛函