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On the Pathwise Uniqueness of Solutions of One-dimensional Reflected Stochastic Differential Equations with Jumps

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Acta Mathematicae Applicatae Sinica 2024年第1期40卷 149-163页

作者： hua Zhang School of Statistics and Data Science&Key Laboratory of Data Science in Finance and Economics Jiangxi University of Finance and EconomicsNanchang330013China

In this paper, we are concerned with the problem of the pathwise uniqueness of one-dimensional reflected stochastic differential equations with jumps under the assumption of non-Lipschitz continuous coefficients whose... 详细信息

关键词： reflected diffusion processes with jumps pathwise uniqueness local time Meyer It?'s formula

State Feedback Controller Design of Networked Control Systems with Time Delay in the Plant

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State Feedback Controller Design of Networked Control System...

Goal-Oriented Control Systems(GOCS):From HOW to WHAT

第25届中国控制会议

作者： Wang Shuo, hua changchun,Guan Xinping Institute of Electrical Engineering, Yanshan University,Qinhuangdao, 066004, China.

＜正＞This paper is concerned with the controller design of networked control systems （NCSs） with time delay in the plant. We employ a model of the NCSs with time delay in the plant, taking into consideration both the network-induced delay and the time delay in the plant. On the basis of the given model, a controller design method is proposed by using the delay-dependent approach. An appropriate Lyapunov functional candidate is proposed to lead to the criteria in this paper by combining the free-weighting matrix method. The feedback gain of a memoryless controller can be derived by solving a set of linear matrix inequalities （LMIs）. Moreover, the correlation between the network-induced delay and the time delay in the plant is also investigated. A numerical example is given to illustrate the effectiveness of our method and the reciprocal influences between the network-induced delay and the delay in the plant.

关键词： networked control system (NCS) linear matrix inequality (LMI) Lyapunov functional candidate network -induced delay stability

来源： cnki会议评论

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 816-819页

作者： Wen-hua Chen the Department of Aeronautical and Automotive Engineering Loughborough UniversityLeicestershireLE113TUU.K.

Brief:New control theory is required to underpin safe design and deployment of future highly automated systems to deal with uncertain environments and complicated tasks,enabled by AI and other advanced ***-Oriented Control Systems offer potential to transform the control system design from currently instructing a control system how to perform a task to specifying what is to be achieved.

关键词： automated instru system

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人口“通缩”时代的经济含义

新金融评论 2019年第1期 69-94页

作者：花长春国泰君安证券研究所

本文主要探讨中国人口周期和趋势对经济的影响。当前新生儿人口急剧下降或开启一个人口'通缩'新时代的大序幕。我国人口拐点或将提前两年于2028年到来,考虑到TFR受人口周期影响有进一步下降的可能,实际上可能更早。中国人口周期和趋势... 详细信息

本文主要探讨中国人口周期和趋势对经济的影响。当前新生儿人口急剧下降或开启一个人口'通缩'新时代的大序幕。我国人口拐点或将提前两年于2028年到来,考虑到TFR受人口周期影响有进一步下降的可能,实际上可能更早。中国人口周期和趋势对经济至少有四个方面的影响:第一,人口快速老龄化,人口红利将趋于消失,这将影响我国经济潜在增长率。第二,投资需求有下行压力,尤其是房地产投资需求。第三,人口老龄化将对资金的需求和供给产生负面影响,投资需求的下降要比储蓄率下降更为明显,利率中枢在人口拐点发生后总体处于下降趋势。第四,我国社会养老负担将会明显加剧。

关键词：人口通缩经济影响

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原发性中枢神经系统淋巴瘤39例临床分析

江苏医药 2014年第22期40卷 2703-2705页

作者：陶轶华长春孙涛江苏省肿瘤医院神经外科 210009

目的分析原发性中枢神经系统淋巴瘤的综合治疗方法和预后。方法确诊原发性中枢神经系统淋巴瘤患者39例,根据术后复查头颅CT或MR结果分为手术全切组(15例)和未全切组(24例),术后均给予同步放、化疗。治疗前后均对患者进行卡氏评分(KPS)... 详细信息

目的分析原发性中枢神经系统淋巴瘤的综合治疗方法和预后。方法确诊原发性中枢神经系统淋巴瘤患者39例,根据术后复查头颅CT或MR结果分为手术全切组(15例)和未全切组(24例),术后均给予同步放、化疗。治疗前后均对患者进行卡氏评分(KPS)并随访生存时间。结果全切组与未全切组在疾病的缓解程度上无统计学差异。KPS≥70分者的中位生存时间提高(P<0.05)。结论对原发性中枢神经系统淋巴瘤患者,需采用手术、放疗、化疗为主的综合治疗。手术全切病灶与否对预后无明显影响;KPS是预示患者生存期的一个重要指标。

关键词：原发性中枢神经系统淋巴瘤卡氏评分

Reliability of a Multicomponent Stress-strength Model Based on a Bivariate Kumaraswamy Distribution with Censored Data

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Acta Mathematicae Applicatae Sinica 2024年第2期40卷 478-507页

作者： Cong-hua CHENG School of Mathematics and Statistics Zhaoqing UniversityZhaoqing 526061China

In this paper,we consider a system which has k statistically independent and identically distributed strength components and each component is constructed by a pair of statistically dependent elements with doubly type-II censored *** elements(X1,Y1),(X2,Y2),…,(Xk,Yk)follow a bivariate Kumaraswamy distribution and each element is exposed to a common random stress T which follows a Kumaraswamy *** system is regarded as operating only if at least s out of k(1≤s≤k)strength variables exceed the random *** multicomponent reliability of the system is given by Rs,k=P(at least s of the(Z1,…,Zk)exceed T)where Zi=min(Xi,Yi),i=1,…,*** Bayes estimates of Rs,k have been developed by using the Markov Chain Monte Carlo methods due to the lack of explicit *** uniformly minimum variance unbiased and exact Bayes estimates of Rs,k are obtained analytically when the common second shape parameter is *** asymptotic confidence interval and the highest probability density credible interval are constructed for Rs,*** reliability estimators are compared by using the estimated risks through Monte Carlo simulations.

关键词： stress-strength model bivariate Kumaraswamy distribution multicomponent reliability doubly Type-II censored scheme interval estimation

Cardiovascular computed tomography in cardiovascular disease:An overview of its applications from diagnosis to prediction

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Journal of Geriatric Cardiology 2024年第5期21卷 550-576页

作者： Zhong-hua SUN Discipline of Medical Radiation Science Curtin Medical SchoolCurtin UniversityPerthAustralia Curtin Health Innovation Research Institute(CHIRI) Curtin UniversityPerth 6012Australia

Cardiovascular computed tomography angiography(CTA)is a widely used imaging modality in the diagnosis of cardiovascular *** in CT imaging technology have further advanced its applications from high diagnostic value to minimising radiation exposure to *** addition to the standard application of assessing vascular lumen changes,CTA-derived applications including 3D printed personalised models,3D visualisations such as virtual endoscopy,virtual reality,augmented reality and mixed reality,as well as CT-derived hemodynamic flow analysis and fractional flow reserve(FFRCT)greatly enhance the diagnostic performance of CTA in cardiovascular *** widespread application of artificial intelligence in medicine also significantly contributes to the clinical value of CTA in cardiovascular *** value of CTA has extended from the initial diagnosis to identification of vulnerable lesions,and prediction of disease extent,hence improving patient care and *** this review article,as an active researcher in cardiovascular imaging for more than 20 years,I will provide an overview of cardiovascular CTA in cardiovascular *** is expected that this review will provide readers with an update of CTA applications,from the initial lumen assessment to recent developments utilising latest novel imaging and visualisation *** will serve as a useful resource for researchers and clinicians to judiciously use the cardiovascular CT in clinical practice.

关键词： diagnosis cardiovascular prediction

钕离子(Nd3+)的光谱性质——谱线位移与共价程度

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化学学报 1984年第7期42卷 697-700页

作者：苏锵吕玉华中国科学院长春应用化学研究所

镧系离子的4f轨道在空间上被5s~25p~6轨道所屏蔽,因此不太被配位场所影响,所以以前认为稀土化合物是属离子型化合物.但大量事实表明.屏蔽并不是完全的,配位场的作用仍不可忽略,有一些镧系化合物并不是纯离子型的,而是有一定程度的共价性... 详细信息

镧系离子的4f轨道在空间上被5s~25p~6轨道所屏蔽,因此不太被配位场所影响,所以以前认为稀土化合物是属离子型化合物.但大量事实表明.屏蔽并不是完全的,配位场的作用仍不可忽略,有一些镧系化合物并不是纯离子型的,而是有一定程度的共价性.这可从它们的f-f跃迁的光谱谱线在配位场的作用下发生位移而得到证明.在配位场的作用下,4f轨道仍有一点伸展扩大,与5d轨道混合而参与成键,从而有一定程度的共价性.由于这种电子云的扩大效应(nephelauxetic effect),使电子间的互斥减小,从而减少了多重项之间的间距,使谱线发生向长波的位移(红移).因此,可根据谱线的红移作为镧系离子与配位体之间的共价程度的测量.由于目前对气态的镧系自由离子的吸收光谱还没有做过很多工作,缺乏数据,因此,目前只能相对于镧系的水合离子来测定镧系化合物的相对谱线位移.

关键词：共价共价性谱线位移红移超灵敏跃迁 Nd 程度

Remote sensing image classification based on artificial neural network:A case study of Honghe Wetlands National Nature Reserve

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Remote sensing image classification based on artificial neur...