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Blockchain-Enabled Federated Learning with Differential Privacy for Internet of Vehicles

Computers, Materials and Continua 2024年第1期81卷 1581-1593页

作者： cui, chi Du, Haiping Jia, Zhijuan He, Yuchu Wang, Lipeng School of Information Science and Technology Zhengzhou Normal University Zhengzhou 450044 China School of Electrical Computer and Telecommunications Engineering University ofWollongong Wollongong NSW 2500 Australia

The rapid evolution of artificial intelligence (AI) technologies has significantly propelled the advancement of the Internet of Vehicles (IoV). With AI support, represented by machine learning technology, vehicles gain the capability to make intelligent decisions. As a distributed learning paradigm, federated learning (FL) has emerged as a preferred solution in IoV. Compared to traditional centralized machine learning, FL reduces communication overhead and improves privacy *** these benefits, FL still faces some security and privacy concerns, such as poisoning attacks and inference attacks, prompting exploration into blockchain integration to enhance its security posture. This paper introduces a novel blockchain-enabled federated learning (BCFL) scheme with differential privacy (DP) tailored for IoV. In order to meet the performance demanding IoV environment, the proposed methodology integrates a consortium blockchain with Practical Byzantine Fault Tolerance (PBFT) consensus, which offers superior efficiency over the conventional public blockchains. In addition, the proposed approach utilizes the Differentially Private Stochastic Gradient Descent (DP-SGD) algorithm in the local training process of FL for enhanced privacy protection. Experiment results indicate that the integration of blockchain elevates the security level of FL in that the proposed approach effectively safeguards FL against poisoning attacks. On the other hand, the additional overhead associated with blockchain integration is also limited to a moderate level to meet the efficiency criteria of IoV. Furthermore, by incorporating DP, the proposed approach is shown to have the (Ε-δ) privacy guarantee while maintaining an acceptable level of model accuracy. This enhancement effectively mitigates the threat of inference attacks on private information. © 2024 The Authors. Published by Tech Science Press.

关键词： Federated learning

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齐心同力还是坐享其成:儿童合作行为的心理机制--基于公共品博弈理念的实验研究

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少年儿童研究 2024年第6期 41-50页

作者：任天鸣崔驰戴明深圳市宝安中学(集团)海天学校科研处东北师范大学经济与管理学院德国海德堡大学阿尔弗雷德·韦伯经济研究所

以公共品博弈理论为分析框架,运用实验室实验法对182名儿童的合作行为进行测量,发现自发性互惠意愿是儿童形成合作行为的内在动因,互惠条件的变化会增加合作的脆弱性。儿童群体对于公共利益的贡献与回报的价值偏好存在结构性差异,来自... 详细信息

以公共品博弈理论为分析框架,运用实验室实验法对182名儿童的合作行为进行测量,发现自发性互惠意愿是儿童形成合作行为的内在动因,互惠条件的变化会增加合作的脆弱性。儿童群体对于公共利益的贡献与回报的价值偏好存在结构性差异,来自不同社会经济地位家庭的儿童有着显著差异。虽然不公平厌恶仍然主导着儿童决策,但是社会性学习对儿童合作行为具有影响。与成年人相比,10岁左右的儿童在合作策略中出现了典型的矛盾类型。因此,在教育教学中应拓宽儿童看待合作问题的视角,以公共利益最大化为出发点和归宿,使其认识到合作在抵御社会风险中的重要作用,充分发挥不平等厌恶、社会性学习以及互惠型个体的榜样示范作用,避免自私型个体行为对他人的消极影响,促进儿童合作能力的发展。

关键词：儿童合作公共品博弈

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儿童分配公正观发展的测量及对道德教育的启示

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少年儿童研究 2024年第3期 71-77页

作者：任天鸣崔驰戴明深圳市罗湖区翠园实验学校教师发展中心东北师范大学经济与管理学院德国海德堡大学阿尔弗雷德·韦伯经济研究所

以332名儿童为样本,使用修改后的博弈论模型在复杂情境下对儿童分配行为的实验室实验结果显示:儿童在分配行为中具有“均等化”“劳动优先”“泛自由”三种价值取向;不同家庭社会经济地位和性别儿童的分配行为存在差异;随着年龄增长、... 详细信息

以332名儿童为样本,使用修改后的博弈论模型在复杂情境下对儿童分配行为的实验室实验结果显示:儿童在分配行为中具有“均等化”“劳动优先”“泛自由”三种价值取向;不同家庭社会经济地位和性别儿童的分配行为存在差异;随着年龄增长、道德认知发展以及社会实践经验丰富,儿童分配性公正价值序列会发生改变。建议道德教育应以塑造符合中国特色社会主义的价值观和追求善的内在自觉为目标;重视劳动价值观和互惠利他、社会责任等公共精神的培养;根据儿童分配公正观发展的阶段性特征设置德育课程内容;通过角色承担、合作实践、焦点问题讨论等方式促进儿童公正观的发展。

关键词：儿童分配公正观道德教育

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小麦TaPR1基因启动子分析及其调控因子的筛选

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农业生物技术学报 2024年第6期32卷 1227-1235页

作者：申松松王丽珊冯燕崔钟池刘园霞刘大群王海燕河北农业大学植物保护学院/河北省农作物病虫害生物防治技术创新中心

病程相关蛋白1 (pathogenesis-related protein 1, PR1)是植物重要的抗逆防御蛋白，小麦(Triticum aestivum) TaPR1基因受小麦叶锈菌(Puccinia triticina, Pt)诱导表达，参与小麦对叶锈病的防御反应。本课题组前期利用基因克隆方法成功... 详细信息

病程相关蛋白1 (pathogenesis-related protein 1, PR1)是植物重要的抗逆防御蛋白，小麦(Triticum aestivum) TaPR1基因受小麦叶锈菌(Puccinia triticina, Pt)诱导表达，参与小麦对叶锈病的防御反应。本课题组前期利用基因克隆方法成功获得TaPR1启动子序列，命名为p TaPR1，其中900 bp序列(p TaPR1900)具有较强的活性。本研究进一步对p TaPR1的序列组成和可能的调控因子进行分析。根据PLACE和PlantCARE数据库初步分析，p TaPR1序列中包含核心元件TATA-box、CAAT-box及大量光反应元件，还包含脱落酸应答元件和响应低温诱导的MYB结合位点。利用酵母单杂交技术(yeast one-hybrid, Y1H)筛选，共获得12个可能与p TaPR1900结合的转录因子；利用Y1H回复验证，初步证实U-box E3泛素连接酶、花粉蛋白、甘氨酸A3蛋白和重金属伴生异戊二烯基植物蛋白与p TaPR1900互作。本研究为深入探讨TaPR1转录调控机制提供理论参考。

关键词：小麦病程相关蛋白1 (TaPR1) 启动子顺式作用元件酵母单杂交(Y1H) 转录因子

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Advances in Biomedical Applications of Hydrogels from Seaweed-Derived Sulfated Polysaccharides:Carrageenan,Fucoidan,and Ulvan

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Journal of Ocean University of china 2024年第5期23卷 1329-1346页

作者： cui Zhiyong JIANG Fei LI Luxi chi Zhe LIU Chenguang College of Marine Life Sciences Ocean University of ChinaQingdao 266003China

Sulfated polysaccharides extracted from seaweeds,including Carrageenan,Fucoidan and Ulvan,are crucial bioactive compounds known for their diverse beneficial properties,such as anti-inflammatory,antitumor,immunomodulatory,antiviral,and anticoagulant *** polysaccharides form hydrogels hold immense promise in biomedicine,particularly in tissue engineering,drug delivery systems and wound *** review comprehensively explores the sources and structural characteristics of the three important sulfated polysaccharides extracted from different algae *** elucidates the gelation mechanisms of these polysaccharides into ***,the biomedical applications of these three sulfated polysaccharide hydrogels in wound healing,drug delivery,and tissue engineering are discussed,highlighting their potential in the biomedicine.

关键词： seaweed sulfated polysaccharides hydrogels biomaterials in medical applications

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A data-driven approach to RUL prediction of tools

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Advances in Manufacturing 2024年第1期12卷 6-18页

作者： Wei Li Liang-chi Zhang Chu-Han Wu Yan Wang Zhen-Xiang cui Chao Niu Department of Mechanical Engineering University College LondonLondonWC1E 7JEUK Shenzhen Key Laboratory of Cross-Scale Manufacturing Mechanics Southern University of Science and TechnologyShenzhen518055GuangdongPeople’s Republic of China SUSTech Institute for Manufacturing Innovation Southern University of Science and TechnologyShenzhen518055GuangdongPeople’s Republic of China Department of Mechanics and Aerospace Engineering Southern University of Science and TechnologyShenzhen518055GuangdongPeople’s Republic of China School of Mechanical and Manufacturing Engineering The University of New South WalesKensingtonNSW2052Australia Baoshan Iron&Steel Co. Ltd.Shanghai200941People’s Republic of China

An effective and reliable prediction of the remaining useful life(RUL)of a tool is important to a metal forming process because it can significantly reduce unexpected maintenance,avoid machine shutdowns and increase system *** study proposes a new data-driven approach to the RUL prediction for metal forming processes under multiple contact sliding *** data-driven approach took advantage of bidirectional long short-term memory(BLSTM)and convolutional neural networks(CNN).A pre-trained lightweight CNN-based network,WearNet,was re-trained to classify the wear states of workpiece surfaces with a high accuracy,then the classification results were passed into a BLSTM-based regression model as inputs for RUL *** experimental results demonstrated that this approach was able to predict the RUL values with a small error(below 5%)and a low root mean square error(RMSE)(around 1.5),which was more superior and robust than the other state-of-the-art methods.

关键词： Remaining useful life(RUL) Bidirectional long short-term memory(BLSTM) Data-driven approach Metal forming

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A DNA micro-complex containing polyaptamer for exosome separation and wound healing

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chinese Chemical Letters 2024年第9期35卷 257-261页

作者： Jingwen Zhao Jianpu Tang Zhen cui Limin Liu Dayong Yang chi Yao Department of Gastroenterology and Hepatology Tianjin Medical University General HospitalTianjin Institute of Digestive DiseaseTianjin Key Laboratory of Digestive DiseasesTianjin 300052China Frontiers Science Center for Synthetic Biology Key Laboratory of Systems Bioengineering(MOE)School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China

Exosomes(EXOs)have showed great potential in regenerative *** separation of EXOs from complex biological media is essential for the down-stream ***,we report a deoxyribonucleic acid(DNA)-based micro-complex(DMC)containing polyaptamers,which realized the specific separation of EXOs from cell culture media and the significant promotion of wound *** synthesis of DMCs was based on a biomineralization process via rolling circle amplification(RCA)under the catalysis of phi29 DNA *** endow DMCs with the ability to capture EXOs,the DNA template of RCA was integrated with complementary sequence of aptamer that specifically recognized the CD63 proteins on *** obtained DMCs contained polyaptamers that can specifically capture the EXOs in cell culture *** EXOs-capturing DMCs were collected by centrifugation,achieving the separation of *** stem cell(MSC)-derived EXOs(MSC-EXOs)were separated by this DMC-based strategy,and the separated MSC-EXOs significantly enhanced the migration ability of *** particular,the significant therapeutic efficacy of the DMCs with MSC-EXOs was verified in full-thickness wound excision mouse models,in which the wounds completely healed in 10 *** envision that this DMC-based separation strategy can be a promising route to promote the development of EXOs in biomedicine.

关键词： DNA nanotechnology DNA materials Aptamer Exosomes Wound healing

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Accelerating the practical application of MOFs for hydrogen storage——from performance-driven to application-oriented

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Green Energy & Environment 2024年第8期9卷 1193-1198页

作者： Yifan Wang Jinghui Wu Yidi Gao Keqing Li chi Wang Xiaochun cui Mingxin Huo Xianze Wang Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection Northeast Normal University Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast china Ministry of Education School of Environment Northeast Normal University Key Laboratory of Songliao Aquatic Environment Ministry of Education Jilin Jianzhu University

Metal-organic frameworks(MOFs) are highly promising porous materials known for their exceptional porosity, extensive surface area, and customizable pore structures, making them an ideal solution for hydrogen storage. However, most MOFs research remains confined to the laboratory, lacking practical applications. To address this, the author proposes a shift towards practical applications, the creation of a comprehensive MOFs database, alignment of synthesis with practical considerations, and diversification of MOFs applications. These steps are crucial for harnessing the full potential of MOFs in real-world energy challenges.

关键词： Metal–organic frameworks Hydrogen gas storage Molecular simulation Computational chemistry Machine learning

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Controlling the uncertainty in reservoir stochastic simulation

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Petroleum Science 2010年第4期7卷 472-476页

作者： cui Yong chi Bo Chen Guo Ouyang Cheng Xia Bairu china University of Geosciences Beijing 100083 China Research Institute of Daqing Oilfield Company Ltd. Heilongjiang 163712 China Geological Exploration ＆ Development Research Institute PetroChina Chuanqing Drilling Engineering CompanyChengdu Sichuan 610051 China

Unexpected noise in reservoir stochastic simulation realization may be too high to make the realization useful, especially when there is a lack of hard data. Through discussing the uncertainties, we present two ways to control the uncertainty ratio that is brought by the algorithm of stochastic simulation. By reasonably reducing the random value of the stochastic simulation result, the unexpected values introduced by the residual that associates with random series can be controlled. Another way when the data disperse unevenly is to control the stochastic simulation order by grouping the points that need to be simulated to make those points which can be simulated by more neighborhood hard data calculated first. Both methods do not go against the core stochastic simulation algorithm.

关键词： Reservoir stochastic simulation hard data Kriging algorithm residual realization

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The evolution,pathogenicity and transmissibility of quadruple reassortant H1N2 swine influenza virus in china:A potential threat to public health

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Virologica Sinica 2024年第2期39卷 205-217页

作者： Xinxin cui Jinhuan Ma Zifeng Pang Lingzhi chi cuishan Mai Hanlin Liu Ming Liao Hailiang Sun College of Veterinary Medicine South China Agricultural UniversityGuangzhou510642China Key Laboratory of Zoonosis Control and Prevention of Guangdong Province South China Agricultural UniversityGuangzhou510642China National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control South China Agricultural UniversityGuangzhou510642China Shandong Vocational Animal Science and Veterinary College Weifang261061China Institute of Animal Health Guangdong Academy of Agricultural SciencesGuangzhou510640China

Swine are regarded as“intermediate hosts”or“mixing vessels”of influenza viruses,capable of generating strains with pandemic *** 2020 to 2021,we conducted surveillance on swine H1N2 influenza(swH1N2)viruses in swine farms located in Guangdong,Yunnan,and Guizhou provinces in southern china,as well as Henan and Shandong provinces in northern *** systematically analyzed the evolution and pathogenicity of swH1N2 isolates,and characterized their replication and transmission *** isolated viruses are quadruple reassortant H1N2 viruses containing genes from pdm/09 H1N1(PB2,PB1,PA and NP genes),triple-reassortant swine(NS gene),Eurasian Avian-like(HA and M genes),and recent human H3N2(NA gene)*** NA,PB2,and NP of SW/188/20 and SW/198/20 show high gene similarities to A/Guangdong/Yue Fang277/2017(H3N2).The HA gene of swH1N2 exhibits a high evolutionary *** five swH1N2 isolates replicate efficiently in human,canine,and swine cells,as well as in the turbinate,trachea,and lungs of mice.A/swine/Shandong/198/2020 strain efficiently replicates in the respiratory tract of pigs and effectively transmitted among ***,these current swH1N2 viruses possess zoonotic potential,highlighting the need for strengthened surveillance of swH1N2 viruses.

关键词： Swine influenza virus(SIV) H1N2 Evolution Replication Pathogenicity Zoonotic potential

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