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SensFL:Privacy-Preserving Vertical Federated Learning with Sensitive Regularization

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co.puter Modeling in Engineering & Sciences 2025年第1期142卷 385-404页

作者： Chongzhen Zhang Zhichen Liu Xiangrui Xu Fuqiang Hu Jiao Dai Baigen Cai Wei Wang School of Automation and Intelligence Beijing Jiaotong UniversityBeijing100044China Shuohuang Railway Development co. Ltd.National Energy GroupCangzhou062350China Beijing Key Laboratory of Security and Privacy in Intelligent Transportation School of Computer Science and TechnologyBeijing Jiaotong UniversityBeijing100044China

In the realm of Intelligent Railway Transportation Systems,effective multi-party co.laboration is crucial due to co.cerns over privacy and data *** Federated Learning(VFL)has emerged as a promising approach to facilitate such co.laboration,allowing diverse entities to co.lectively enhance machine learning models without the need to share sensitive training ***,existing works have highlighted VFL’s susceptibility to privacy inference attacks,where an honest but curious server co.ld potentially reco.struct a client’s raw data from embeddings uploaded by the *** vulnerability poses a significant threat to VFL-based intelligent railway transportation *** this paper,we introduce SensFL,a novel privacy-enhancing method to against privacy inference attacks in ***,SensFL integrates regularization of the sensitivity of embeddings to the original data into the model training process,effectively limiting the information co.tained in shared *** reducing the sensitivity of embeddings to the original data,SensFL can effectively resist reverse privacy attacks and prevent the reco.struction of the original data from the *** experiments were co.ducted on four distinct datasets and three different models to demonstrate the efficacy of *** results show that SensFL can effectively mitigate privacy inference attacks while maintaining the accuracy of the primary learning *** results undersco.e SensFL’s potential to advance privacy protection technologies within VFL-based intelligent railway systems,addressing critical security co.cerns in co.laborative learning environments.

关键词： Vertical federated learning privacy defenses

Alkali-extracted polysaccharides from mung bean skin possess protective effect on H_(2)O_(2)-induced IEC-6 cells:the role of NF-κB and MAPK signaling pathways

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Food Science and Human Wellness 2025年第1期14卷 101-111页

作者： Shuai Chen Liuming Xie Pingwei Wen Qiang Yu Yi Chen Hanyu Lu Ting Chen Xin Tao Jianhua Xie State Key Laboratory of Food Science and Resources Nanchang UniversityNanchang 330047China International Institute of Food Innovation co. Ltd.Nanchang UniversityNanchang 330200China

Intestinal oxidation-reduction balance is essential to protect host *** on the underlying mechanisms of oxidation homeostasis can provide co.ditions to the treatment or protection of intestinal oxidative ***,the mechanism of polysaccharide(MBP)with alkali-extracted from mung bean skin in alleviating oxidative damage induced by H_(2)O_(2)-induced in intestinal epithelial cells(IEC)-6 cells was *** indicated that MBP effectively mitigated the H_(2)O_(2)-induced decrease in IEC-6 cell viability,restored superoxide dismutase(SOD)activity,lowered malondialdehyde(MDA)co.tent,and decreased reactive oxygen species(ROS)*** blotting showed that MBP may mitigate oxidative damage through NF-κB,MAPK and Nrf2 signaling pathway,and RNA sequencing(RNA-seq)analysis co.firmed that MBP can protect cells by regulating MAPK and NF-κB signaling ***,the results of the inhibitor experiment also support the above *** results verified that MBP has the capacity to mitigate oxidative damage induced by H_(2)O_(2)in IEC-6 cells through MAPK and NF-κB signaling *** study showed that MBP can assist preventing intestinal diseases relating to oxidative stress,which co.ld facilitate the development of functional foods.

关键词： Polysaccharide Alkali-extracted Oxidative stress RNA sequencing Molecular mechanism

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Direct Synthesis of UOS Zeolite Using a Simple and co.mercially Available Organic Structure-directing Agent

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Chemical Research in Chinese Universities 2025年第1期41卷 113-120页

作者： HU Chao FU Wenhua YUAN Zhiqing LIU Chuang WANG Zhendong YANG Weimin School of Chemical Engineering East China University of Science and TechnologyShanghai200237P.R.China State Key Laboratory of Green Chemical Engineering and Industrial Catalysis Sinopec Shanghai Research Institute of Petrochemical Technology Co.Ltd.SinopecShanghai201208P.R.China

The preparation of zeolite utilizing co.mercially available organic co.pounds instead of co.plex and expensive ones is of practical ***,we report the synthesis of germanosilicate zeolite with UOS framework by utilizing a simple and co.mercially available co.pound 3-diethylamino-1-propanol(DEAP)as organic structure-directing agent(OSDA)under fluoride *** synthesis has been optimized by rational modification of the variables,including the Si/Ge molar ratios,the amount of DEAP and F−anions,the co.centration of the synthesis gel and crystallization *** zeolite materials were prepared with Si/Ge ratio in the range of 1–*** physico.hemical properties,including crystallinity,crystal morphology,chemical environment of framework elements,textural properties and acidity were characterized by multiple *** atoms are proved to preferentially occupy the T sites in the double-four-ring(D4Rs)*** to the isostructural IM-16 zeolite,the UOS zeolites prepared herein are of similar textural properties,such as specific surface area and micropore *** simple structure and co.mercial availability of DEAP endow this synthesis with a co.t advantage over the co.ventional preparation of UOS zeolite,where an expensive imidazolium derivative is employed.

关键词： UOS zeolite Organic structure-directing agent Hydrothermal synthesis Physico.hemical property

Impact of Burial Dissolution on the Development of Ultradeep Fault-co.trolled Carbonate Reservoirs:Insights from High-temperature and High-pressure Dissolution Kinetic Simulation

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Acta Geologica Sinica(English Edition) 2025年第1期99卷 228-242页

作者： TAN Xiaolin ZENG Lianbo SHE Min LI Hao MAO Zhe SONG Yichen YAO Yingtao WANG Junpeng LU Yuzhen National Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing 102249China co.lege of Geoscience China University of Petroleum(Beijing)Beijing 102249China PetroChina Hangzhou Institute of Geology Hangzhou 310023China Shenzhen Branch of CNOOC(China)co. Ltd.Shenzhen 518000China

Burial dissolution is a critical diagenetic process influencing ultra-deep carbonate reservoir development and *** carbonate samples with different internal structures were prepared,and high-temperature and highpressure dissolution kinetic simulations were *** results demonstrate that the intensity of burial dissolution is co.trolled by temperature and pressure,while tectonic-fluid activity influences the development pattern of burial dissolution,ultimately determining the direction of its differential *** burial dissolution is likely to occur primarily at relatively shallow depths,significantly influencing reservoir formation,preservation,modification,and *** development of faults facilitates the maintenance of the intensity of burial *** maximum intensity of burial dissolution occurs at the tips and overlap zones of faults and intersections of multiple *** larger the scale of the faults,the more co.ducive it is to the development of burial *** dissolution fosters the formation of fault networks characterized by enhanced reservoir capacity and *** dissolution co.trolled by episodic tectonic-fluid activity is a plausible explanation for forming the Tarim Basin's ultra-deep fault-co.trolled“stringbead-like”reservoirs.

关键词： burial dissolution tectonic-fluid ultra-deep carbonate reservoirs high-temperature and high-pressure dissolution kinetic simulation

Visible light excitation on CuPd/TiN with enhanced chemisorption for catalyzing Heck reaction

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Chinese Chemical Letters 2025年第1期36卷 362-368页

作者： Xuhui Fan Fan Wang Mengjiao Li Faiza Meharban Yaying Li Yuanyuan Cui Xiaopeng Li Jingsan Xu Qi Xiao Wei Luo State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Beijing Key Laboratory of Ionic Liquids Clean Process Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049China National Energy R&D Center for co.l to Liquid Fuels Synfuels China Technology Co.Ltd.Beijing 101407China Shimadzu(China)co. Ltd.Shanghai 200233China School of Chemistry and Physics&Centre for Materials Science Queensland University of TechnologyBrisbaneQLD 4001Australia

In this work,we developed plasmonic photocatalyst co.posed of Cu Pd alloy nanoparticles supported on Ti N,the optimized Cu_(3)Pd_(2)/Ti N catalyst shows excellent co.version(>96%)and selectivity(>99%)for Heck reaction at 50℃ under visible light *** in-situ spectrosco.ic investigations,we find that visible light excitation co.ld achieve stable metallic Cu species on the surface of Cu Pd alloy nanoparticles,thereby eliminating the inevitable surface oxides of Cu based *** in-situ formed metallic Cu species under irradiation take advantage of the strong interactions of Cu with visible light,and manifest in the localized surface plasmon resonances(LSPR)*** light excitation co.ld further promote the charge transfer between catalytic Pd co.ponent and the support Ti N,resulting in electron-rich Pd sites on Cu Pd/Ti ***,light excitation on Cu Pd/Ti N generates strong chemisorption of iodobenzene and styrene,favoring the activation of reactants for Heck *** calculations suggest that electron-rich Cu Pd sites ideally lower the activation energy barrier for the co.pling *** work provides valuable insights for mechanistic understanding of plasmonic photocatalysis.

关键词： Photocatalysis CuPd alloy Chemisorption Photocatalytic mechanism LSPR

Prediction of intrusive gas pores caused by resin burning in sand co.e for iron castings

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China Foundry 2025年第1期22卷 23-32页

作者： Ji-wu Wang Xiao-long Wang Yu-cheng Sun Yu-hang Huang Xiu-ming Chen Xiong-zhi Wu Na Li Jin-wu Kang Tao Jing Tian-you Huang Hai-liang Yu School of Mechanical Electronic and Control EngineeringBeijing Jiaotong UniversityBeijing 100044China Weichai Power co. Ltd.Weifang 261061ShandongChina School of Mechanical Engineering Central South UniversityChangsha 41000China School of Materials Science and Engineering Key Laboratory for Advanced Materials Processing TechnologyTsinghua UniversityBeijing 100084China

In the production of castings,intrusive gas pore represents a kind of co.mon defects which can lead to leakage in high gas-tightness requirement castings,such as cylinder blocks and cylinder heads for *** occurs due to the intrusion of gases generated during the resin burning of the sand co.e into castings during the casting ***,a gas generation and flow co.stitution model was established,in which the gas generation rate is a function of temperature and time,and the flow of gas is co.trolled by the gas release,co.servation,and Darcy's *** heat transfer and gas flow during casting process was numerically *** dangerous point of co.es is firstly identified by a virtual heat transfer method based on the similarity between heat transfer and gas flow in the sand *** gas pores in castings are predicted by the gas pressure,the visco.ity and state of the melt for these dangerous *** distinct sand co.e structures were designed and used for the production of iron castings,and the simulated gas pore results were validated by the obtained castings.

关键词： gas pore numerical simulation iron casting sand co.e resin

co.struction of room-temperature self-healing polyurethane-based phase change co.posites for thermal co.trol and energy supply

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Science China Chemistry 2025年

作者： Yuling Ouyang Xiaofei Xu Yingqian Li Defeng Cao Qingbao Guan Zhengwei You State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Institute of Functional Materials Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society) Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine Donghua University Shandong Inov Polyurethane co. Ltd. Suzhou Xinghua High Tech Materials Technology co. Ltd.

Solar energy is the main cause of overheating in the cabin of cars on summer days, resulting in a large amount of fossil energy being used for temperature co.trol in cars. However, the co.version of solar energy in a low-energy way to realize in-vehicle temperature co.trolling and reduce the co.sumption of fossil fuels remains a significant challenge. Herein, we report a roomtemperature self-healing polyurethane(PU2) with excellent mechanical strength(10.4 MPa) to fabricate an energy co.version and supply co.posite(ST1/PU2) via co.bining with phase change microcapsules(MEPCMs), which efficiently realize invehicle temperature co.trolling. MEPCMs display superior phase transition enthalpy of 160.0 J/g, thermal co.ductivity0.34 W/(m K) and encapsulation performance(71.9%) in ST1/PU2. The resultant ST1/PU2 exhibits outstanding co.ling effect/thermal insulation upon a light intensity of 5.1 W/cm2, where the actual temperature was reduced by 28.5 °C co.pared to ***, the self-healing triboelectric nanogenerator(S-TENG) based on ST1/PU2 provides co.tinuous electrical signals and the healed S-TENG co.ld be 100% reco.ered at 50 °C in 24 h, which shows great potential to significantly prolong the service life of devices. co.sequently, this work will provide a new strategy to reduce the fossil energy co.sumption and promote the sustainability of flexible electronics.

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Graphene Size Dependent Hardness and Strengthening Mechanisms of Cu/Graphene co.posites:A Molecular Dynamics Study

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稀有金属材料与工程 2025年第1期54卷 17-26页

作者： Zhang Shuang Chang Guo Li Liang Li Xiang Peng Haoran Chen Kaiyun Yang Nan Huo Wangtu Advanced Materials Research Center Northwest Institute for Nonferrous Metal ResearchXi'an 710016China United Technology Center Western Metal Materials Co.LtdXi'an 710201China

The extraordinary strength of metal/graphene co.posites is significantly determined by the characteristic size,distribution and morphology of ***,the effect of the graphene size/distribution on the mechanical properties and related strengthening mechanisms has not been fully ***,under the same volume fraction and distribution co.ditions of graphene,molecular dynamics simulations were used to investigate the effect of graphene sheet size on the hardness and deformation behavior of Cu/graphene co.posites under co.plex stress *** models of pure single crystalline Cu and graphene fully co.ered Cu matrix co.posite were co.structed for *** results show that the strengthening effect changes with varying the graphene sheet *** the graphene dislocation blocking effect and the load-bearing effect,the deformation mechanisms change from stacking fault tetrahedron,dislocation bypassing and dislocation cutting to dislocation nucleation in turn with decreasing the graphene sheet *** hardness of Cu/graphene co.posite,with the graphene sheet not co.pletely co.ering the metal matrix,can even be higher than that of the fully co.ered *** extra strengthening mechanisms of dislocation bypassing mechanism and the stacking fault tetrahedra pinning dislocation mechanism co.tribute to the increase in hardness.

关键词： Cu/graphene co.posites graphene size hardness strengthening mechanism molecular dynamics

Data-Driven Method for Predicting Remaining Useful Life of Bearings Based on Multi-Layer Perception Neural Network and Bidirectional Long Short-Term Memory Network

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Structural Durability & Health Monitoring 2025年第2期19卷 365-383页

作者： Yongfeng Tai Xingyu Yan Xiangyi Geng Lin Mu Mingshun Jiang Faye Zhang CRRC Qingdao Sifang co. Ltd.Qingdao266111China School of co.trol Science and Engineering Shandong UniversityJinan250061China Public(Innovation)Experimental Teaching Center Shangdong UniversityQingdao266237China Engineering Training Center Shangdong UniversityJinan250061China

The remaining useful life prediction of rolling bearing is vital in safety and reliability *** engineering scenarios,only a small amount of bearing performance degradation data can be obtained through accelerated life *** the absence of lifetime data,the hidden long-term co.relation between performance degradation data is challenging to mine effectively,which is the main factor that restricts the prediction precision and engineering application of the residual life prediction *** address this problem,a novel method based on the multi-layer perception neural network and bidirectional long short-term memory network is ***,a nonlinear health indicator(HI)calculation method based on kernel principal co.ponent analysis(KPCA)and exponential weighted moving average(EWMA)is ***,using the raw vibration data and HI,a multi-layer perceptron(MLP)neural network is trained to further calculate the HI of the online bearing in real ***,The bidirectional long short-term memory model(BiLSTM)optimized by particle swarm optimization(PSO)is used to mine the time series features of HI and predict the remaining service *** verification experiments and co.parative experiments are carried out on the XJTU-SY bearing open *** research results indicate that this method has an excellent ability to predict future HI and remaining life.

关键词： Remaining useful life prediction rolling bearing health indicator co.struction multilayer perceptron bidirectional long short-term memory network