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Convergence analysis of an incremental approach to online inverse reinforcement learning

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Journal of Zhejiang University-Science C(Computers and Electronics) 2011年第1期12卷 17-24页

作者： Zhuo-jun JIN Hui QIAN Shen-yi chen Miao-liang ZHU School of Computer Science and Technology Zhejiang University Hangzhou 310027 China

Interest in inverse reinforcement learning (IRL) has recently increased,that is,interest in the problem of recovering the reward function underlying a Markov decision process (MDP) given the dynamics of the system and the behavior of an *** paper deals with an incremental approach to online ***,the convergence property of the incremental method for the IRL problem was investigated,and the bounds of both the mistake number during the learning process and regret were provided by using a detailed *** an online algorithm based on incremental error correcting was derived to deal with the IRL *** key idea is to add an increment to the current reward estimate each time an action mismatch *** leads to an estimate that approaches a target optimal *** proposed method was tested in a driving simulation experiment and found to be able to efficiently recover an adequate reward function.

关键词： Incremental approach Reward recovering Online learning Inverse reinforcement learning Markov decision process

Magneto‑Dielectric Synergy and Multiscale Hierarchical Structure Design Enable Flexible Multipurpose Microwave Absorption and Infrared Stealth Compatibility

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Nano-Micro Letters 2025年第2期17卷 401-416页

作者： chen Li Leilei liang Baoshan Zhang yi Yang Guangbin Ji School of Electronic Science and Engineering Nanjing UniversityNanjing 210093People’s Republic of China College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 210016People’s Republic of China

Developing advanced stealth devices to cope with radar-infrared(IR)fusion detection and diverse application scenarios is increasingly demanded,which faces significant challenges due to conflicting microwave and IR cloaking mechanisms and functional integration ***,we propose a multiscale hierarchical structure design,integrating wrinkled MXene IR shielding layer and flexible Fe_(3)O_(4)@C/PDMS microwave absorption *** top wrinkled MXene layer induces the intensive diffuse reflection effect,shielding IR radiation signals while allowing microwave to pass ***,the permeable microwaves are assimilated into the bottom Fe_(3)O_(4)@C/PDMS layer via strong magneto-electric *** theoretical and experimental optimization,the assembled stealth devices realize a near-perfect stealth capability in both X-band(8–12 GHz)and long-wave infrared(8–14μm)wavelength ***,it delivers a radar cross-section reduction of−20 dB m^(2),a large apparent temperature modulation range(ΔT=70℃),and a low average IR emissivity of ***,the optimal device demonstrates exceptional curved surface conformability,self-cleaning capability(contact angle≈129°),and abrasion resistance(recovery time≈5 s).This design strategy promotes the development of multispectral stealth technology and reinforces its applicability and durability in complex and hostile environments.

关键词： Microwave absorption Radar-infrared compatible stealth Wrinkled MXene Magneto-dielectric synergy Multifunction

Metabolic reprogramming: a new option for the treatment of spinal cord injury

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Neural Regeneration Research 2025年第4期20卷 1042-1057页

作者： Jiangjie chen Jinyang chen Chao Yu Kaishun Xia Biao Yang Ronghao Wang yi Li Kesi Shi Yuang Zhang Haibin Xu Xuesong Zhang Jingkai Wang Qixin chen chengzhen liang Department of Orthopedics The Second Affiliated Hospital of Zhejiang University School of MedicineHangzhouZhejiang ProvinceChina Orthopedics Research Institute of Zhejiang University Zhejiang UniversityHangzhouZhejiang ProvinceChina Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province HangzhouZhejiang ProvinceChina Clinical Research Center of Motor System Disease of Zhejiang Province HangzhouZhejiang ProvinceChina Qiandongnan Prefecture People’s Hospital KailiGuizhou ProvinceChina Department of Orthopedics Fourth Medical CenterChinese PLA General HospitalBeijingChina

Spinal cord injuries impose a notably economic burden on society,mainly because of the severe after-effects they *** the ongoing development of various therapies for spinal cord injuries,their effectiveness remains ***,a deeper understanding of metabolism has opened up a new therapeutic opportunity in the form of metabolic *** this review,we explore the metabolic changes that occur during spinal cord injuries,their consequences,and the therapeutic tools available for metabolic *** spinal cord metabolism is characterized by independent cellular metabolism and intercellular metabolic ***,spinal cord injury results in metabolic disorders that include disturbances in glucose metabolism,lipid metabolism,and mitochondrial *** metabolic disturbances lead to corresponding pathological changes,including the failure of axonal regeneration,the accumulation of scarring,and the activation of *** rescue spinal cord injury at the metabolic level,potential metabolic reprogramming approaches have emerged,including replenishing metabolic substrates,reconstituting metabolic couplings,and targeting mitochondrial therapies to alter cell *** available evidence suggests that metabolic reprogramming holds great promise as a next-generation approach for the treatment of spinal cord *** further advance the metabolic treatment of the spinal cord injury,future efforts should focus on a deeper understanding of neurometabolism,the development of more advanced metabolomics technologies,and the design of highly effective metabolic interventions.

关键词： axons glycolysis metabolic reprogramming metabolism mitochondria neural regeneration neuroprotection oxidative phosphorylation spinal cord injury therapy

A modified tricuspid valve annuloplasty technique for functional tricuspid regurgitation

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Chinese Medical Journal 2013年第18期126卷 3534-3538页

作者： WANG Jun LI Zhi ZHU Quan WU Yan-hu SHAO Yong-feng QIN Jian-wei chen yi-jiang chen liang Department of Thoracic and Cardiovascular Surgery First Affiliated Hospital of Nanjing Medical University Nanjing Jiangsu 210029 China

Background Functional tricuspid regurgitation often occurs in patients with concomitant left sided, valve disease. Several types of tricuspid valve annuloplasty have been described, but there is no consensus on the management of functional tricuspid regurgitation. We report a modified annuloplasty technique and compare its efficacy with the conventional Kay technique. Methods A retrospective review was made of 60 patients who received tricuspid valve annuloplasty （group A, modified method; group B, Kay technique） and the early and midterm outcomes of modified method and Kay technique were compared. Results Three patients underwent ring annuloplasty using a semirigid Carpentier-Edwards ring due to failing suture annuloplasty. All patients were completely cured when they left the hospital. The follow-up time was （32＋7） months in group A and （30＋7） months in group B. After three years, tricuspid regurgitation decreased by more than two grades in 13 patients in group A and 11 in group B. The mean postoperative regurgitation grade in group A was lower than group B at 12, 24 and 36 months but not significantly. Three of 28 patients developed recurrent tricuspid regurgitation in group A and five of 26 patients in group B during the follow-up period （three deaths and three ring annuloplasties excluded）. Freedom from recurrent tricuspid regurgitation in group A was higher than that group B at all follow-up points. Postoperative right atrium diameter, right ventricle endodiastolic dimension and tricuspid regurgitation area decreased obviously in both groups. The right ventricle endodiastolic dimension and tricuspid regurgitation area improved more significantly in group A than group B over three years of follow-up, Conclusions The modified annuloplasty technique achieved the same outcomes as the conventional Kay annuloplasty over the first three years postoperation. As this modified technique is simple and less expensive, it is another option for correction of functional tric

关键词： functional tricuspid regurgitation tricuspid valve annuloplasty Kay annuloplasty

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我国基本医疗保险住院服务受益公平性研究

中国卫生政策研究 2017年第3期10卷 40-46页

作者：姚奕陈仪陈聿良北京大学经济学院北京100871

目的:研究我国三种基本医疗保险制度下住院服务受益公平性问题。方法:利用中国家庭动态跟踪调查(CFPS)2010年基线调查数据,运用两部分模型来探讨不同制度下、不同收入水平的参保人群在医保覆盖的住院服务利用率和住院经济补偿两方面是... 详细信息

目的:研究我国三种基本医疗保险制度下住院服务受益公平性问题。方法:利用中国家庭动态跟踪调查(CFPS)2010年基线调查数据,运用两部分模型来探讨不同制度下、不同收入水平的参保人群在医保覆盖的住院服务利用率和住院经济补偿两方面是否存在差异。结果:各收入组别在住院服务利用率方面差异不大;而在报销住院费用方面,较高收入组和最高收入组的医保报销费用分别比最低收入组高26.3%和36.5%。具体到每一制度,城镇职工医保不同收入组之间的报销费用不存在显著差异;城镇居民医保参保人员报销费用随收入水平的增加而呈现上升趋势;新农合制度只有最高收入组与最低收入组之间存在一定差异。结论:我国基本医疗保险在住院服务利用率方面不存在明显的不公平特征,但在医保报销水平上存在与收入相关的不公平特征。城镇职工医保的公平程度较高,新农合次之,而城镇居民医保受益公平性最差。从制度间的比较而言,新农合参合人员的住院率和医保报销费用均显著偏低。应积极推进基本医疗保险制度整合,加强医疗救助体系建设,完善大病保险制度,以改善制度公平性。

关键词：基本医疗保险制度受益公平性两部分模型住院服务

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多孔介质钝体火焰稳定性

燃烧科学与技术 2012年第2期18卷 111-116页

作者：刘明侯许胜陈靖陈义良中国科学技术大学热科学和能源工程系合肥230027

提出采用多孔介质材料制作钝体火焰稳定器,旨在利用其通透和弥散性能改善钝体后燃空比,从而提高火焰稳定性.通过对实心钝体、平均孔径为1.27,mm和0.32,mm的多孔介质钝体尾迹冷态流场、钝体火焰及其稳定特性对比实验,发现基于来流速度和... 详细信息

提出采用多孔介质材料制作钝体火焰稳定器,旨在利用其通透和弥散性能改善钝体后燃空比,从而提高火焰稳定性.通过对实心钝体、平均孔径为1.27,mm和0.32,mm的多孔介质钝体尾迹冷态流场、钝体火焰及其稳定特性对比实验,发现基于来流速度和钝体特征长度尺度的雷诺数对实心和多孔介质钝体回流区产生特性影响较大.多孔介质钝体回流区出现在x/D=1,其长度为(0.8～1.0)D,回流强度35%;实心钝体产生的回流区紧贴钝体,长度为1.4D、回流强度为82%.当空气伴流速度为6.0,m/s时,实心钝体燃料流速度小于3.1,m/s时熄火,而平均孔径为1.70,mm和0.32,mm的多孔介质则分别在实心钝体燃料流速度小于1.6,m/s和0.9,m/s后才熄火.由于多孔介质渗透和弥散作用,钝体后燃料空气混合更好,可获得更宽的火焰稳定范围.当燃料速度相同时,多孔介质钝体熄火的空气伴流速度更大;当相同燃料和空气伴流条件时,多孔介质火焰刚性更强,燃烧更充分.

关键词：多孔介质火焰稳定器熄火极限火焰稳定性

Construction of prognostic model of cervical cancer based on necroptosis-related lncRNAs

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Medical Data Mining 2022年第3期5卷 23-35页

作者： Jin Cao Bu-Hai Wang yi-chen liang J.Juan Gu Yu-Xiang Huang Medical College Yangzhou UniversityYangzhou 225000China Institute of Oncology Northern Jiangsu People's HospitalYangzhou 225000China Department of Oncology Northern Jiangsu People's HospitalYangzhou 225000China

Background:Long non-coding RNAs(lncRNAs)can influence the necroptosis process,which is essential in malignant *** no studies have looked at the predictive value of necroptosis-related lncRNAs in cervical cancer(CC).Using necroptosis-related lncRNAs,we developed a prediction signature to predict the prognosis of CC ***:We gathered the RNA-seq and related clinical data for patients with CC from the Cancer Genome Atlas(TCGA)*** identify lncRNAs linked to necroptosis,we then conducted univariate and multivariate Cox regression ***-expression network analysis,least absolute shrinkage selection operator(LASSO)regression analysis and multivariate Cox regression analyses were subsequently used to further filter necroptosis-related lncRNAs signature and construct a predictive ***,we examined the medication sensitivity between the two risk *** performed a single-sample gene set enrichment analysis(ssGSEA)to investigate the association between the predictive signature and the tumor immune ***:Six necroptosis-related lncRNAs(AL021807.1,AC026803.2,AC015819.1,AC233728.1,AL158166.1,NKILA)that are independently connected to the overall survival(OS)time of CC patients make up the signature we *** predicting the 1-,3-,and 5-year survival rates,the areas under the receiver operating characteristic(ROC)curve(AUC)were 0.72,0.791,and *** was determined that the risk score model was a separate prognostic *** Kaplan-Meier analysis revealed that the prognosis for CC patients in the high-risk category was ***-risk CC patients had more active immune systems and responded better to PD1/L1 ***:The signature based on necroptosis-related lncRNAs is a reliable biomarker,which is more likely to independently predict the prognosis of patients with CC and offer a foundation for the pathogenesis of necroptosis-related lncRNAs in *** can also be utilized to direct the tailored ther

关键词： cervical cancer necroptosis long noncoding RNAs prognostic signature the cancer genome atlas

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GIS在恰甫其海水电站的应用

水利水电技术 2006年第11期37卷 85-86,103页

作者：王虎陈屹亮新疆伊河建管局

GIS(gas-insulated metal-enclosed switchgear)即气体绝缘金属封闭开关设备.它不采用处于大气压下的空气作为绝缘介质,而是采用绝缘性能和灭弧性能优异的六氟化硫(SF6)气体作为绝缘和灭弧介质,本文所说的GIS指SF6气体绝缘金属封闭组合... 详细信息

GIS(gas-insulated metal-enclosed switchgear)即气体绝缘金属封闭开关设备.它不采用处于大气压下的空气作为绝缘介质,而是采用绝缘性能和灭弧性能优异的六氟化硫(SF6)气体作为绝缘和灭弧介质,本文所说的GIS指SF6气体绝缘金属封闭组合电器.GIS将断路器、隔离开关、接地开关、电压互感器、电流互感器、避雷器、套管和母线等高压电气设备组合密封在充有SF6气体的金属筒中,从而大大减小了高压配电装置的体积,减小了外部环境对高压电器的影响,减少了维护工作量,提高了运行可靠性,更易实现无人值班(少人值守)的运行模式,因此,GIS在国内外电站和变电所已被广泛地应用.在新疆新建的水电站中,恰甫其海水电站和吉林台水电站首次采用了GIS.

关键词： GIS 设计安装恰甫其海水电站

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恰甫其海水利枢纽管理处安全生产保证体系

水利水电技术 2006年第11期37卷 117-121页

作者：王虎陈屹亮新疆伊河建管局新疆乌鲁木齐830000

根据电力行业安全生产的经验,安全生产体系包括了安全生产保证体系和安全生产监督体系,电力生产企业只有建立起这两个体系,才能使安全生产工作有序并有效地进行.为了使恰甫其海枢纽管理处(以下简称'管理处')建立的这两个体系有效可靠,... 详细信息

根据电力行业安全生产的经验,安全生产体系包括了安全生产保证体系和安全生产监督体系,电力生产企业只有建立起这两个体系,才能使安全生产工作有序并有效地进行.为了使恰甫其海枢纽管理处(以下简称'管理处')建立的这两个体系有效可靠,需要对建立这两个体系进行策划.从目前管理处安全生产工作的需要出发,应首先建立起安全生产保证体系.为此,笔者根据安全生产保证体系的知识,并结合管理处的实际,对管理处如何建立安全生产保证体系提出一些探讨性的意见.

关键词：安全生产保证体系工作要点恰甫其海水利枢纽