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High-resolution short-term prediction of the COVID-19 epidemic based on spatial-temporal model modified by historical meteorological data

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Fundamental Research 2024年第3期4卷 527-539页

作者： Bin Chen Ruming Chen Lin Zhao Yuxiang ren Li Zhang yingjie Zhao Xinbo Lian Wei Yan Shuoyuan Gao College of Atmospheric Sciences Lanzhou UniversityLanzhou 730000China Collaborative Innovation Center of Western Ecological Security Lanzhou UniversityLanzhou 730000China

In the global challenge of Coronavirus disease 2019(COVID-19)pandemic,accurate prediction of daily new cases is crucial for epidemic prevention and socioeconomic *** contrast to traditional local,one-dimensional time-series data-based infection models,the study introduces an innovative approach by formulating the short-term prediction problem of new cases in a region as multidimensional,gridded time series for both input and prediction targets.A spatial-temporal depth prediction model for COVID-19(ConvLSTM)is presented,and further ConvLSTM by integrating historical meteorological factors(Meteor-ConvLSTM)is refined,considering the influence of meteorological factors on the propagation of *** correlation between 10 meteorological factors and the dynamic progression of COVID-19 was evaluated,employing spatial analysis techniques(spatial autocorrelation analysis,trend surface analysis,etc.)to describe the spatial and temporal characteristics of the *** the original ConvLSTM,an artificial neural network layer is introduced to learn how meteorological factors impact the infection spread,providing a 5-day forecast at a 0.01°×0.01°pixel *** results using real dataset from the 3.15 outbreak in Shanghai demonstrate the efficacy of Meteor-ConvLSTM,with reduced RMSE of 0.110 and increased R^(2) of 0.125(original ConvLSTM:RMSE=0.702,R^(2)=0.567;Meteor-ConvLSTM:RMSE=0.592,R^(2)=0.692),showcasing its utility for investigating the epidemiological characteristics,transmission dynamics,and epidemic development.

关键词： COVID-19 Prediction ConvLSTM Refined prediction Meteorological factors Spatial-temporal analysis

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Enhancing ^(*)CO coverage on Sm-Cu_(2)O via 4f-3d orbital hybridization for highly efficient electrochemical CO_(2) reduction to C_(2)H_(4)

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Journal of Energy Chemistry 2024年第12期99卷 409-416页

作者： Xiaojun Wang Lanlan Shi Weikun ren Jingxian Li Yuanming Liu Weijie Fu Shiyu Wang Shuyun Yao yingjie Ji Kang Ji Liwen Zhang Zhiyu Yang Jiangzhou Xie Yi-Ming Yan State Key Laboratory of Organic-Inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing100029China School of Mechanical and Manufacturing Engineering University of New South WalesSydney 2052New South WalesAustralia Zolix Instruments Company Limited Beijing 101102China

The electrocatalytic conversion of CO_(2) into valuable chemical feedstocks using renewable electricity offers a compelling strategy for closing the carbon *** copper-based materials are effective in catalyzing CO_(2) to C_(2+)products,the instability of Cu^(+)species,which tend to reduce to Cu~0 at cathodic potentials during CO_(2) reduction,poses a significant ***,we report the development of SmCu_(2)O and investigate the influence of f-d orbital hybridization on the CO_(2) reduction reaction (CO_(2)RR).Supported by density functional theory (DFT) calculations,our experimental results demonstrate that hybridization between Sm^(3+)4f and Cu^(+)3d orbitals not only improves the adsorption of *CO intermediates and increases CO coverage to stabilize Cu^(+) but also facilitates CO_(2) activation and lowers the energy barriers for CAC ***,Sm-Cu_(2)O achieves a Faradaic efficiency for C_(2)H_(4) that is 38%higher than that of undoped Cu_(2)***,it sustains its catalytic activity over an extended operational period exceeding 7 h,compared to merely 2 h for the undoped *** research highlights the potential of fd orbital hybridization in enhancing the efficacy of copper-based catalysts for CO_(2)RR,pointing towards a promising direction for the development of durable,high-performance electrocatalysts for sustainable chemical synthesis.

关键词： Electrochemical CO_(2)reduction F-d orbital hybridization Adsorption of^(*)CO CO coverage C_(2+)products

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Self-selective memristor-enabled in-memory search for highly efficient data mining

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InfoMat 2023年第5期5卷 121-133页

作者： Ling Yang Xiaodi Huang Yi Li Houji Zhou yingjie Yu Han Bao Jiancong Li Shengguang ren Feng Wang Lei Ye Yuhui He Jia Chen Guiyou Pu Xiang Li Xiangshui Miao School of Integrated Circuits Hubei Key Laboratory for Advanced MemoriesHuazhong University of Science and TechnologyWuhanthe People's Republic of China Hubei Yangtze Memory Laboratories Wuhanthe People's Republic of China InnoHK Centers AI Chip Center for Emerging Smart SystemsHong Kongthe People's Republic of China Huawei Technologies Co. Ltd.Shenzhenthe People's Republic of China

Similarity search,that is,finding similar items in massive data,is a fundamental computing problem in many fields such as data mining and information ***,for large-scale and high-dimension data,it suffers from high computational complexity,requiring tremendous computation ***,based on the low-power self-selective memristors,for the first time,we propose an in-memory search(IMS)system with two innovative ***,by exploiting the natural distribution law of the devices resistance,a hardware locality sensitive hashing encoder has been designed to transform the realvalued vectors into more efficient binary ***,a compact memristive ternary content addressable memory is developed to calculate the Hamming distances between the binary codes in *** IMS system demonstrated a 168energy efficiency improvement over all-transistors counterparts in clustering and classification tasks,while achieving a software-comparable accuracy,thus providing a low-complexity and low-power solution for in-memory data mining applications.

关键词： in-memory search self-selective memristor similarity search ternary content addressable memory

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大金推出高性能雨刮器胶条润滑耐磨涂料

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汽车零部件 2015年第3期 13-13页

作者：唐洁任英杰童捷铭徐钢林成挺

汽车雨刮器是汽车上的重要部件,可以保持挡风玻璃外表面的清洁,确保雨雪天气视野清晰和行车安全。因此,它必须具备耐候、耐腐蚀、低摩擦、拨水性强、不损伤挡风玻璃的特点。据了解,目前雨刮器胶条涂层通常以二硫化钼处理为主,其耐磨性... 详细信息

汽车雨刮器是汽车上的重要部件,可以保持挡风玻璃外表面的清洁,确保雨雪天气视野清晰和行车安全。因此,它必须具备耐候、耐腐蚀、低摩擦、拨水性强、不损伤挡风玻璃的特点。据了解,目前雨刮器胶条涂层通常以二硫化钼处理为主,其耐磨性能有限,约15万次,通常用于维修市场。由于氟材料具有优良的耐候、耐腐蚀和润滑性能,因此中高端市场主要采用含氟涂料进行表面处理,耐磨性能约30万-40万次。

关键词：耐磨涂料耐磨性能大金涂层性能氟材料维修市场表面处理中高端市场氟涂料润滑性能

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The Role of KDM2A and H3K36me2 Demethylation in Modulating MAPK Signaling During Neurodevelopment

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Neuroscience Bulletin 2024年第8期40卷 1076-1092页

作者： Zongyao ren Haiyan Tang Wendiao Zhang Minghui Guo Jingjie Cui Hua Wang Bin Xie Jing Yu Yonghao Chen Ming Zhang Cong Han Tianyao Chu Qiuman Liang Shunan Zhao yingjie Huang Xuelian He Kefu Liu Chunyu Liu Chao Chen Center for Medical Genetics&Hunan Key Laboratory of Medical Genetics School of Life Sciencesand Department of PsychiatryThe Second Xiangya HospitalCentral South UniversityChangsha 410028China National Clinical Research Center on Mental Disorders The Second Xiangya HospitalCentral South UniversityChangsha 410028China National Clinical Research Center for Geriatric Disorders Xiangya HospitalCentral South UniversityChangsha 410011China Furong Laboratory Changsha 410000China Department of Psychiatry SUNY Upstate Medical UniversitySyracuseNY 13210USA Precision Medical Center Wuhan Children's Hospital(Wuhan Maternal and Child Healthcare Hospital)Tongji Medical CollegeHuazhong University of Science&TechnologyWuhan 430014China Department of Medical Genetics Hunan Children's HospitalChangsha 410007China

Intellectual disability(ID)is a condition characterized by cognitive impairment and difficulties in adaptive *** our research,we identified two de novo mutations(c.955C>T and c.732C>A)at the KDM2A locus in individuals with varying degrees of *** addition,by using the Gene4Denovo database,we discovered five additional cases of de novo mutations in *** mutations we identified significantly decreased the expression of the KDM2A *** investigate the role of KDM2A in neural development,we used both 2D neural stem cell models and 3D cerebral *** findings demonstrated that the reduced expression of KDM2A impairs the proliferation of neural progenitor cells(NPCs),increases apoptosis,induces premature neuronal differentiation,and affects synapse *** ChIP-Seq analysis,we found that KDM2A exhibited binding to the transcription start site regions of genes involved in *** addition,the knockdown of KDM2A hindered H3K36me2 binding to the downstream regulatory elements of *** integrating ChIP-Seq and RNA-Seq data,we made a significant discovery of the core genes'remarkable enrichment in the MAPK signaling ***,this enrichment was specifically linked to the p38 MAPK ***,disease enrichment analysis linked the differentially-expressed genes identified from RNA-Seq of NPCs and cerebral organoids to neurodevelopmental disorders such as ID,autism spectrum disorder,and ***,our findings suggest that KDM2A plays a crucial role in regulating the H3K36me2 modification of downstream genes,thereby modulating the MAPK signaling pathway and potentially impacting early brain development.

关键词： Intellectual disability KDM2A Neurodevelopmental disorder Cerebral organoids

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2019年—2020年胰腺癌放射治疗新进展

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临床肝胆病杂志 2021年第3期37卷 733-736页

作者：任刚王颖杰空军特色医学中心放射治疗科北京100142

随着放疗设备、影像技术、人工智能等方面的迅速发展,放疗已进入精准时代。放疗是胰腺癌治疗的重要手段之一,近期在相关放疗理念、技术模式方面进展很快。结合目前放疗领域专家所关注的胰腺癌放疗技术新进展、放疗剂量模式改变等热点问... 详细信息

随着放疗设备、影像技术、人工智能等方面的迅速发展,放疗已进入精准时代。放疗是胰腺癌治疗的重要手段之一,近期在相关放疗理念、技术模式方面进展很快。结合目前放疗领域专家所关注的胰腺癌放疗技术新进展、放疗剂量模式改变等热点问题,回顾近期相关文献加以总结分析,归纳提示多模态影像对指导胰腺癌放疗有重要作用,放疗剂量模式向高剂量少分次方向发展,新辅助放疗的作用得到进一步证实,多药联合的强力化疗方案是胰腺癌放疗的主要联合方式。

关键词：胰腺肿瘤放射疗法综合疗法

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翻译与文化:从文化间性到转文化性

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社会科学研究 2022年第6期 181-189页

作者：张潆洁任文北京外国语大学高级翻译学院北京100081 国际大学翻译学院联合会理事会

随着人口流动、科技发展和全球化,一国之内的自有文化与外来文化相互融合,跨越语言与文化边界的叙事及其翻译日益频繁,于是,源语到译语、源语文化到译语文化的二元体系随之面临挑战,而常用的cross-cultural、multicultural、intercultu... 详细信息

随着人口流动、科技发展和全球化,一国之内的自有文化与外来文化相互融合,跨越语言与文化边界的叙事及其翻译日益频繁,于是,源语到译语、源语文化到译语文化的二元体系随之面临挑战,而常用的cross-cultural、multicultural、intercultural等概念都未能克服传统单一文化观的局限,无法有效分析上述叙事及翻译。本文旨在引入更接近现当代文化及其翻译原貌的“转文化性”(transculturality)概念及理论,为上述问题提供可能的解决路径。本文认为,文化间性(interculturality)和转文化性分别指向翻译参与文化交融过程的两个阶段,并基于此对转文化英语叙事及其中文翻译尝试全新分类。理论层面,转文化观尝试超越民族国家边界,不聚焦文化差异,而是关注文化交融过程和文化共通之处,为转文化叙事及其翻译提供一种更为适用的文化观和研究方法。现实层面,转文化观有助于在促进文化互通互鉴,探索并激发潜在的语言和文化活力,与延续文化认同和传承之间,寻求动态的平衡关系。

关键词：转文化性文化间性跨文化文化翻译转文化英语叙事

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Study on the Environmental Remediation Mode of Marine Industries

Study on the Environmental Remediation Mode of Marine Indust...

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2011 International Conference on Information Management and Engineering(ICIME 2011)

作者： Shouzhen ren yingjie Dai Hong Yan Ying Zhang Lilong Yan Xiaohui Wang School of Resources Environment Northeast Agricultural University Key Laboratory of Green Chemical Technology of College of Heilongjiang Province College of Chemistry and Environmental EngineeringHarbin University of Science and Technology

ISBN: (纸本)9781612842387

In this study, the environmental remediation mode of marine industries was investigated by using utilization of sea water in combination with thermal power generation. As an ocean state owning a broad sea frontier, China has a very great potential in development and utilization of marine resources. It is necessary in development of environmental remediation to seek for some modes differing from that of traditional terrestrial economy.

关键词： remediation marine industries environment sewage treatment

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Q235钢扫描激光热丝焊接工艺特性与组织性能研究

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中国激光 2024年第12期51卷 50-58页

作者：于宸乾任刚黄映杰高明华中科技大学武汉光电国家研究中心湖北武汉430074 九江中科激光技术研究院江西九江332005

以Q235低碳钢为材料,研究了光束扫描对激光热丝焊的焊缝成形特性、微观组织和力学性能的影响。结果表明:在扫描激光的作用下,焊缝的成形变得更加均匀,飞溅减少,焊缝熔深减小,熔宽增大,截面熔合区底部变得更加平滑;扫描激光的加入降低了... 详细信息

以Q235低碳钢为材料,研究了光束扫描对激光热丝焊的焊缝成形特性、微观组织和力学性能的影响。结果表明:在扫描激光的作用下,焊缝的成形变得更加均匀,飞溅减少,焊缝熔深减小,熔宽增大,截面熔合区底部变得更加平滑;扫描激光的加入降低了熔池的温度梯度,抑制了粗大柱状晶的生长,改变了铁素体晶粒形态,细化了熔合区组织,提高了焊缝韧性及延伸率;扫描激光促进了焊缝成分的均匀化分布,抑制了偏析,降低了熔合区显微硬度。由于激光作用面积增大等因素,光束扫描增强了激光热丝焊接对间隙的桥接能力。

关键词：激光技术激光热丝焊接光束扫描微观组织力学性能

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A Port Ship Flow Prediction Model Based on the Automatic Identification System and Gated Recurrent Units

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Journal of Marine Science and Application 2021年第3期20卷 572-580页

作者： Xiaofeng Xu Xiang’en Bai yingjie Xiao Jia He Yuan Xu Hongxiang ren College of Merchant Shipping Shanghai Maritime UniversityShanghai 201306China Shanghai Waterway Engineering Design and Consulting Co. Ltd.Shanghai 200120China Naval Architecture and Ocean Engineering College Dalian Maritime UniversityDalian 116026China

Water transportation today has become increasingly busy because of economic *** order to solve the problem of inaccurate port traffic flow prediction,this paper proposes an algorithm based on gated recurrent units(GRUs)and Markov residual correction to pass a fixed *** analyze the traffic flow of ships,the statistical method of ship traffic flow based on the automatic identification system(AIS)is *** a model is put forward for predicting the ship *** to the basic principle of cyclic neural networks,the law of ship traffic flow in the channel is explored in the time *** have been performed using a large number of AIS data in the waters near Xiazhimen in Zhoushan,Ningbo,and the results show that the accuracy of the GRU-Markov algorithm is higher than that of other algorithms,proving the practicability and effectiveness of this method in ship flow prediction.

关键词： Ship flow prediction GRU neural network Markov residual correction AIS data

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