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Partially-Observed Maximum Principle for Backward Stochastic Differential Delay Equations

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IEEE/CAA Journal of Automatica Sinica 2024年第6期11卷 1524-1526页

作者： Shuang wu Department of Applied Mathematics China University of PetroleumQingdao 266580China

Dear Editor,This letter investigates a partially-observed optimal control problem for backward stochastic differential delay equations(BSDDEs).By utilizing Girsanov’s theory and convex variational method,we obtain a maximum principle on the assumption that the state equation contains time delay and the control domain is *** adjoint processes can be represented as the solutions of certain time-advanced stochastic differential equations in finite-dimensional *** backward stochastic differential equation(BSDE)was first introduced by Bismut in[1],while general BSDE was given by Pardoux and Peng[2].Since then,the theory of BSDEs developed *** corresponding optimal control problems,whose states are driven by BSDEs,have also been widely studied by some authors,see[3]-[5].

关键词： stochastic backward convex

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新质生产力的质态、测度与支撑体系

学术月刊 2024年第7期56卷 42-57页

作者：殷德生吴其珊金培振华东师范大学经济与管理学院上海200062 华东师范大学中国经济研究中心上海200062

发展新质生产力是推动高质量发展的内在要求和重要着力点。新质生产力是符合新发展理念的先进生产力质态,以创新尤其是颠覆性技术和前沿技术创新起主导作用,具有高科技、高效能、高质量特征,表现为前沿技术创新催生的新产业、新模式、... 详细信息

发展新质生产力是推动高质量发展的内在要求和重要着力点。新质生产力是符合新发展理念的先进生产力质态,以创新尤其是颠覆性技术和前沿技术创新起主导作用,具有高科技、高效能、高质量特征,表现为前沿技术创新催生的新产业、新模式、新动能。通过选取集成电路行业、电子与通信设备类行业、计算机及办公设备类行业、医药和医疗仪器类行业,在非参数DEA模型的基础上进行方法创新,同时采用产出导向的SBM模型和投入导向的EBM模型,对中国代表性地区和战略性新兴产业的新质生产力水平进行测度,揭示了其变动特征及趋势。以双向固定效应模型为基准,实证检验了新质生产力变动的决定因素为:产业数字化转型、产业链优化升级、战略性新兴产业研发投入强度。加快发展新质生产力的支撑体系在于推动产业链优化升级、积极培育新兴产业和未来产业,以及深入推进数字经济创新发展。

关键词：新质生产力非参数DEA模型战略性新兴产业产业链现代化

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昆明南站站房钢柱转换节点加工关键技术

施工技术 2015年第14期44卷 54-58页

作者：潘俊吴德胜沈晓飞浙江东南网架股份有限公司浙江杭州311209

随着空间钢结构的发展,单一的钢柱结构形式已经满足不了楼层及屋面造型的需求。通过对昆明南站站房十字-圆管柱转换节点加工技术的研究,确定了十字-圆管柱转换节点从零部件下料、加工或卷制、组装、焊接等整套加工方法,成功解决了其加... 详细信息

随着空间钢结构的发展,单一的钢柱结构形式已经满足不了楼层及屋面造型的需求。通过对昆明南站站房十字-圆管柱转换节点加工技术的研究,确定了十字-圆管柱转换节点从零部件下料、加工或卷制、组装、焊接等整套加工方法,成功解决了其加工难题,并为其他类似工程钢构件的加工提供了很好的借鉴作用。

关键词：火车站钢结构转换节点制作焊接

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统编小学《道德与法治》教材的学术成就

课程．教材．教法 2024年第2期44卷 63-70页

作者：吴松伟高德胜华东师范大学课程与教学研究所上海200062

统编小学《道德与法治》教材取得的成功基于其学术底蕴。教材学术性的标准在于教材编写基于研究、教材体现理论自觉、教材对学术问题有所突破。本套教材以研究为基本编写方式,在伦理观、德育观、教材观和教学观上都有学术理论的指导。... 详细信息

统编小学《道德与法治》教材取得的成功基于其学术底蕴。教材学术性的标准在于教材编写基于研究、教材体现理论自觉、教材对学术问题有所突破。本套教材以研究为基本编写方式,在伦理观、德育观、教材观和教学观上都有学术理论的指导。本套教材探明了儿童经验进教材的路径,厘清了道德教育与法律教育的关系,摸索出了在传统文化教育中体现儿童立场的方法,突破了一些学术难题。“内容至上”的倾向,“应试”化的教学氛围以及对“副科”的轻视,是发扬本套教材学术成就的主要挑战。弘扬教材的学术性,将教材的学术成就转化为实践进步,需要各方面教育主体的共同努力。

关键词：小学《道德与法治》统编三科教材德育

Enhancing performance of low-temperature processed CsPbI2Br all-inorganic perovskite solar cells using polyethylene oxide-modified TiO_(2)

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International Journal of Minerals,Metallurgy and Materials 2024年第4期31卷 786-794页

作者： Xu Zhao Naitao Gao Shengcheng wu Shaozhen Li Sujuan wu School of Electrical and Electronic Engineering Wuhan Polytechnic UniversityWuhan 430023China Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou 510006China

CsPbX_(3)-based(X=I,Br,Cl)inorganic perovskite solar cells(PSCs)prepared by low-temperature process have attracted much attention because of their low cost and excellent thermal ***,the high trap state density and serious charge recombination between low-temperature processed TiO_(2)film and inorganic perovskite layer interface seriously restrict the performance of all-inorganic *** a thin polyethylene oxide(PEO)layer is employed to modify TiO_(2)film to passivate traps and promote carrier *** impacts of PEO layer on microstructure and photoelectric characteristics of TiO_(2)film and related devices are systematically *** results suggest that PEO modification can reduce the surface roughness of TiO_(2)film,decrease its average surface potential,and passivate trap *** optimal conditions,the champion efficiency of CsPbI_(2)Br PSCs with PEO-modified TiO_(2)(PEO-PSCs)has been improved to 11.24%from 9.03%of reference ***,the hysteresis behavior and charge recombination have been suppressed in PEO-PSCs.

关键词： polyethylene oxide-modified TiO_(2) film low-temperature process CsPbI_(2)Br-based all-inorganic perovskite solar cells photo-voltaic performance

Towards adaptive graph neural networks via solving prior-data conflicts

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Frontiers of Information Technology & Electronic Engineering 2024年第3期25卷 369-383页

作者： Xugang wu Huijun wu Ruibo WANG Xu ZHOU Kai LU College of Computer National University of Defense TechnologyChangsha 410073China

Graph neural networks(GNNs)have achieved remarkable performance in a variety of graph-related *** evidence in the GNN community shows that such good performance can be attributed to the homophily prior;i.e.,connected nodes tend to have similar features and ***,in heterophilic settings where the features of connected nodes may vary significantly,GNN models exhibit notable performance *** this work,we formulate this problem as prior-data confict and propose a model called the mixture-prior graph neural network(MPGNN).First,to address the mismatch of homophily prior on heterophilic graphs,we introduce the non-informative prior,which makes no assumptions about the relationship between connected nodes and learns such relationship from the ***,to avoid performance degradation on homophilic graphs,we implement a soft switch to balance the effects of homophily prior and non-informative prior by learnable *** evaluate the performance of MPGNN on both synthetic and real-world *** show that MPGNN can effectively capture the relationship between connected nodes,while the soft switch helps select a suitable prior according to the graph *** these two designs,MPGNN outperforms state-of-the-art methods on heterophilic graphs without sacrificing performance on homophilic graphs.

关键词： Graph neural networks Heterophily Prior-data conflict

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饲料调质器热损失的研究

饲料工业 2010年第11期31卷 4-7页

作者：闫飞吴德胜孙跃飞中国农业机械化科学研究院

文中依据传热学知识,对单双层调质器的热损失进行了详细分析,通过分季节详细分析了其热损失以及由热损失所造成的热煤耗量及经济损失,得出双层调质器较单层调质器在节能方面有着显著的优势,为饲料调质器的开发和应用提供了一定的理论依据。

关键词：饲料调质器热损失

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饲料螺旋挤压膨化机关键部件的设计

农机化研究 2014年第4期36卷 113-116页

作者：朱斌吴德胜冯广林中国农业机械化科学研究院北京100083

螺旋膨化机作为目前使用最广泛的饲料热加工机械,具有连续化、高温、加工时间短等特点,通过不同的配置可以生产出种类繁多的膨化产品。为此,就螺旋的设计进行了探讨,从物料特性与机械结构相结合的角度分析了膨化机的设计过程,主要从含... 详细信息

螺旋膨化机作为目前使用最广泛的饲料热加工机械,具有连续化、高温、加工时间短等特点,通过不同的配置可以生产出种类繁多的膨化产品。为此,就螺旋的设计进行了探讨,从物料特性与机械结构相结合的角度分析了膨化机的设计过程,主要从含水率等物料特性、传动系统、螺旋配置、压缩比、模板与切刀等方面展开阐述。

关键词：饲料膨化机螺旋物料特性

A GNSS Anti-Spoofing Technique Based on the Spatial Distribution Characteristic of the Residual Vectors

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Tsinghua Science and Technology 2024年第2期29卷 457-468页

作者： Qi'an wu Xiaowei Cui Mingquan Lu Pengxiang Yang Peng wu Department of Electronic Enginnering Tsinghua UniversityBeijing 100084China Xi’an Modern Control Technology Research Institute Xi’an 710065China

Anti-spoofing is becoming a crucial technique for applications with high navigation accuracy and reliability ***-spoofing technique based on Receiver Autonomous Integrity Monitoring(RAIM)is a good choice for most Global Navigation Satellite System(GNSS)receivers because it does not require any change to the hardware of the ***,the conventional RAIM method can only detect and mitigate a single spoofing *** improved RAIM methods can deal with more spoofing signals,but the computational complexity increases dramatically when the number of satellites in view increase or need additional *** paper proposes a new RAIM method,called the SRV-RAIM method,which has a very low computation complexity regardless of the number of satellites in view and can deal with any number of spoofing *** key to the new method is the spatial distribution characteristic of the Satellites'Residual Vectors(SRV).In replay or generative spoofing scenarios,the pseudorange measurements of spoofing signals are consistent,the residual vectors of real satellites and those of spoofing satellites have good separation characteristics in spatial *** on this characteristic,the SRV-RAIM method is proposed,and the simulation results show that the method can separate the real signals and the spoofing signals with an average probability of 86.55%in the case of 12 visible satellites,regardless of the number of spoofing *** to the conventional traversal-RAIM method,the performance is only reduced by 3.59%,but the computational cost is reduced by 98.3%,so most of the GNSS receivers can run the SRV-RAIM algorithm in time.

关键词： Global Navigation Satellite System(GNSS) anti-spoofing Receiver Autonomous Integrity Monitoring(RAIM) Satellites'Residual Vectors(SRV)