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SensFL:Privacy-Preserving Vertical Federated Learning with Sensitive Regularization

Computer 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 collaboration is crucial due to concerns over privacy and data *** Federated Learning(VFL)has emerged as a promising approach to facilitate such collaboration,allowing diverse entities to collectively 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 could potentially reconstruct 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 contained in shared *** reducing the sensitivity of embeddings to the original data,SensFL can effectively resist reverse privacy attacks and prevent the reconstruction of the original data from the *** experiments were conducted 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 underscore SensFL’s potential to advance privacy protection technologies within VFL-based intelligent railway systems,addressing critical security concerns in collaborative learning environments.

关键词： Vertical federated learning privacy defenses

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Trophic Niche Shifts in Mountain Feirana Frogs under human-mediated Habitat Transformations

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Asian Herpetological Research 2021年第2期12卷 234-241页

作者： Shengnan YANG Chunlan ZHANG Wenbo liAO na li Junhua hu Chengdu Institute of Biolog y Chinese Academy of SciencesChengdu 610041SichuanChina Guangdong Key Laborator y of Animal Conservation arnd Rescurce Urilization Guangdong Public Labnoratory of Wild Animnal Conservatimand UilizationInstitute of Zoolog yGuangdong Academy of SciencesGuangzhou 510260GuangdongChina Key Laboratory of Southwest China Wilife Resources Conservation(Ministry of Education) China West Normal UniversityNanchong 6370OOSichuanChina CAS Key liberatory of Mountain Ecological Restoration and Bioresource Utilization e Ecological Restoration and Biodiversity Conservation Key liberatory of Sichuan Province Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041SichuanChina

Urbanization can induce environmental changes, disturbing habitat transformation process, and resulting in niche shift of species and local extinctions. Amphibians have experienced worldwide population declines, with ha bitat loss acting as one of the most disruptive causes. How amphibian species response to changing habitats could be reflected in their utilization and assimilation of resources. Using stable isotopes, we explored trophic niche variation between natural and transformed habitats for three closely related frog species in the genus Feirana(F. quadranus, F. taihangnica and F. kangxianensis). Our results indicated that the δ~(13)C value was negatively correlated with body size(snout-vent length) and the δ~(15)N value increased along with the ontogenetic process. The δ~(13)C values were significantly different among habitat types, and the variation of δ~(15)N values was relatively limited in different disturbed gradients. Urban groups displayed broader trophic niche width than both rural and natural groups. When species in sympatry, their resource utilization and trophic niche overlap probability were more similar in rural habitats than their natural counterparts. Our findings would be conducive to understand trophic niche and function variation in amphibians during the urbanization process, allowing for effective predictions of ecological consequences of habitat transformation. This study can also provide insight into conservation strategies for mountain amphibians in the Anthropocene.

关键词： amphibians habitat transformation habitat type stable isotopes trophic niche width urbanization

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Microstructure evolution of eutectic Nb–24Ti–15Si–4Cr–2Al–2Hf alloy processed by directional solidification

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Rare Metals 2017年第6期36卷 472-477页

作者： Zhen li Sai-nan Yuan li-na Jia Bin Kong Zhen Hong hu Zhang School of Materials Science and Engineering Beihang Universtity Beijing 100191 China

In this work, the near-eutectic Nb-24Ti-15Si-4Cr-2Al-2Hf（at%） alloy was directionally solidified at 1900 ℃ with withdrawal rates of 6, 18, 36, 50 mm·min^-1 and then heat-treated at 1450 ℃ for 12 h. The microstructure evolution was investigated. The results show that the microstructure of the directionally solidified（DS） alloy is composed of Nbss＋Nb5Si3 eutectics within the whole withdrawal rate range, while the variation of rates makes a great difference on the solidification routes,the morphology and size of Nb_（ss）＋Nb_5Si_3 eutectic *** the increase in withdrawal rates, the petaloid Nbss＋Nb5Si3 eutectic cells transform into granular morphology. After the heat treatment, a mesh structure Nbssis formed gradually which isolates the Nb5Si3, and the phase boundaries become smoother in order to reduce the interfacial energy. Moreover, two kinds of Nb5Si3 exist in the heat-treated（HT） samples identified by crystal form and element composition, which are supposed as α-Nb5Si3 and γ-Nb5Si3, respectively. This study exhibits significant merits in guiding the optimization of Nb-Si-based alloys＇ mechanical properties.

关键词： Nb-Si-based alloy Directional solidification Heat treatment Microstructure evolution Intermetallic

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纤维增强FRP筋混凝土组合梁结构的抗弯性能研究

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工程建设与设计 2017年第3期 38-41页

作者：彭慈德张丽娜舒婷胡逸杰邱立冬东华理工大学建筑工程学院南昌330013

FRP(纤维增强复合材料)由于其强度高、刚度大、延展性好等优点在工程界广受青睐。论文研究了不同FRP筋钢筋混凝土梁在不同荷载作用下梁的变形以及裂缝宽度。结果表明,与GFRP(玻璃纤维增强复合材料)筋混凝土梁相比,CFRP(碳纤维增强复合材... 详细信息

FRP(纤维增强复合材料)由于其强度高、刚度大、延展性好等优点在工程界广受青睐。论文研究了不同FRP筋钢筋混凝土梁在不同荷载作用下梁的变形以及裂缝宽度。结果表明,与GFRP(玻璃纤维增强复合材料)筋混凝土梁相比,CFRP(碳纤维增强复合材料)筋混凝土梁的抗弯强度增大了,延展性一定程度上提高了,裂缝宽度小于GFRP筋混凝土梁。

关键词： FRP 抗弯强度延展性裂缝宽度

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熔盐罐罐底角焊缝疲劳可靠性评估方法及应用

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西安交通大学学报 2025年第1期59卷 215-224页

作者：俞兵胡海军谢国山李涌泉李秀峰西安交通大学化学工程与技术学院西安710049 中国特种设备检测研究院北京100029 国家市场监督管理总局技术创新中心(炼油与化工装备风险防控) 北京100029

为了准确评估熔盐罐罐底角焊缝服役过程中的疲劳可靠性,将应力影响因素和疲劳模型参数随机化,提出了一种基于应力-强度干涉理论的角焊缝疲劳可靠性评估方法。通过雨流计数法获得典型的熔盐液位变化幅值并统计其出现频率;建立了真实尺寸... 详细信息

为了准确评估熔盐罐罐底角焊缝服役过程中的疲劳可靠性,将应力影响因素和疲劳模型参数随机化,提出了一种基于应力-强度干涉理论的角焊缝疲劳可靠性评估方法。通过雨流计数法获得典型的熔盐液位变化幅值并统计其出现频率;建立了真实尺寸的角焊缝数值模型并获得其应力分布;基于角焊缝尺寸、载荷等应力影响因素的正态分布模型,应用拉丁超立方抽样方法对其抽样统计,从而获得角焊缝焊趾处等效结构应力的分布模型;对ASME BPVC.Ⅷ.2—2023标准中疲劳寿命模型的主应力-寿命曲线参数进行随机化,基于应力-强度干涉理论,建立了角焊缝疲劳可靠性评估模型;对某光热装置低温熔盐罐罐底角焊缝的疲劳可靠性进行实例分析。结果表明:一个季度内熔盐罐液位变化主要有6种典型工况,最大液位波动为1.55~12.39 m;角焊缝最大应力位于其内侧焊趾处,为301.5 MPa;多载荷下角焊缝的疲劳寿命均值为46 a,服役3 a后角焊缝的疲劳失效概率为0.040 6,服役30 a后的失效概率为0.335 9。

关键词：熔盐罐角焊缝应力-强度干涉模型疲劳可靠性

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Is it possible to foot reflexology for infants with sensorineural hearing loss?

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World Journal of Clinical Cases 2025年第2期13卷 1-4页

作者： Min Ai Hang-Hang Zhang Jun-Bang Feng Chuan-Ming li Wen-Jing Wang Meng-Die hu Department of Anesthesiology Nanan District People's Hospital of ChongqingChongqing 400060China Department of Breast and Thyroid Surgery Chongqing Bishan District Maternal and Child Health Care HospitalChongqing 402760China Department of Medical Imaging Chongqing University Central HospitalChongqing 400014China

Foot reflexology is a non-invasive and safe complementary therapy that works by massaging the reflex zones of the feet and exerts systemic or whole-body regulation through meridian nerve *** therapy is commonly used in the treatment of various conditions such as autism and Parkinson's ***,there is limited reporting on the use of foot reflexology therapy for infants with sensorineural hearing loss(SNHL).Currently,there is no definitive conclusion on how foot reflexology therapy can influence *** editorial holds some guiding significance regarding this clinical *** aim is to present physiological evidence of how foot reflexology therapy can impact infants with SNHL,thereby enhancing clinician’s awareness of foot reflexology in treating infants with SNHL.

关键词： Foot reflexology Sensorineural Hearing Loss Future perspectives limitations Neural conduction

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Unraveling brain aging through the lens of oral microbiota

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Neural Regeneration Research 2025年第7期20卷 1930-1943页

作者： Qinchao hu Si Wang Weiqi Zhang Jing Qu Guang-hui liu State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijingChina Hospital of Stomatology Guanghua School of StomatologyGuangdong Provincial Key Laboratory of StomatologySun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Advanced Innovation Center for human Brain Protection and national Clinical Research Center for Geriatric Disorders Xuanwu HospitalCapital Medical UniversityBeijingChina Aging Translational Medicine Center International Center for Aging and CancerBeijing Municipal Geriatric Medical Research CenterXuanwu HospitalCapital Medical UniversityBeijingChina CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijingChina University of Chinese Academy of Sciences BeijingChina Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijingChina Aging Biomarker Consortium BeijingChina State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijingChina Beijing Institute for Stem Cell and Regenerative Medicine BeijingChina

The oral cavity is a complex physiological community encompassing a wide range of *** of oral microbiota can lead to various oral infectious diseases,such as periodontitis and tooth decay,and even affect systemic health,including brain aging and neurodegenerative *** studies have highlighted how oral microbes might be involved in brain aging and neurodegeneration,indicating potential avenues for intervention *** this review,we summarize clinical evidence demonstrating a link between oral microbes/oral infectious diseases and brain aging/neurodegenerative diseases,and dissect potential mechanisms by which oral microbes contribute to brain aging and *** also highlight advances in therapeutic development grounded in the realm of oral microbes,with the goal of advancing brain health and promoting healthy aging.

关键词： Alzheimer's disease brain aging multiple sclerosis neurodegeneration neurodegenerative diseases oral microbiota Parkinson's disease periodontitis bacteria Porphyromonas gingivalis

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Neural and Behavioral Measures of Stress-induced Impairment in Error Awareness and Post-error Adjustment

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Neuroscience Bulletin 2024年第7期40卷 937-951页

作者： na hu Quanshan Long Xiaoxi Wang Quan li Qing li Antao Chen School of Preschool and Special Education Kunming UniversityKunming 650214China Faculty of Education Yunnan Normal UniversityKunming 650214China College of Teacher Education Qujing Normal UniversityQujing 655099China Key Laboratory of Cognition and Personality of Ministry of Education Faculty of PsychologySouthwest UniversityChongqing 400715China School of Psychology Shanghai University of SportShanghai 200438China

Exposure to stress negatively affects error processing,but the impact of stress on error awareness remains to be *** the present study,we examined the temporal dynamics of error awareness and post-error adjustment following acute ***-nine healthy men were randomly assigned to the control(n=26)or stress group(n=23).After stress induction,participants completed the error awareness task,and their brain activity was assessed by *** to the control group,the stress group demonstrated lower error awareness accuracy and smaller Pe(error positivity)and ΔPe amplitudes following aware error responses,which indicated impairment of error awareness following ***,the stress group had lower accuracy in post-aware error responses than in post-unaware error responses and the control group,which indicated poor post-error adjustment following *** results showed a stress effect on sequential stages of error *** induces impaired error identification,which further generates maladaptive post-error performance.

关键词： Acute stress Error awareness Post-error adjustment Error positivity

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Simple Preparation of the Photocatalyst of Sn^(2+)-doped Titania

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Chinese Chemical Letters 2006年第8期17卷 1089-1092页

作者： Dao Rong li ling na SUN Chang Wen hu Department of Chemistry Beijing Institute of Technology Beijing 100081 Department of Chemistry Henan University of Technology Zhengzhou 450052

Preparation method of photocatalyst, using TiCl4 and SnCl2 as raw material and photocatalytic activity of nano-scaled core-shell Sn^2＋ -doped titania photocatalyst was studied in this paper. The as-prepared samples were studied by UV-Vis, XRD, XPS, TEM. The particles of Sn^2＋-doped TiO2 photocatalyst, calcined from 150 to 600 ℃ for 5 h, possesses narrow particle size distribution and the sample was composed of anatase phase. Its photocatalytic efficiency was investigated by UV irradiation.

关键词： Compound semiconductors preparation photocatalysis.

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Height estimation from single aerial imagery using contrastive learning based multi-scale refinement network

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International Journal of Digital Earth 2023年第1期16卷 2322-2340页

作者： Wufan Zhao hu Ding Jiaming na Mengmeng li Dirk Tiede Geomatics Section Department of Civil EngineeringFaculty of Engineering TechnologyKU LeuvenBelgium School of Geography South China Normal UniversityGuangzhouPeople’s Republic of China College of Civil Engineering Nanjing Forestry UniversityNanjingPeople’s Republic of China Academy of Digital China(Fujian) Fuzhou UniversityFuzhouPeople’s Republic of China Department of Geoinformatics(Z_GIS) Faculty of Digital and Analytical SciencesParis Lodron University of SalzburgSalzburgAustria

Height map estimation from a single aerial image plays a crucial role in localization,mapping,and 3D object *** convolutional neural networks have been used to predict height information from single-view remote sensing images,but these methods rely on large volumes of training data and often overlook geometric features present in orthographic *** address these issues,this study proposes a gradient-based self-supervised learning network with momentum contrastive loss to extract geometric information from non-labeled images in the pretraining ***,novel local implicit constraint layers are used at multiple decoding stages in the proposed supervised network to refine high-resolution features in height *** structural-aware loss is also applied to improve the robustness of the network to positional shift and minor structural changes along the boundary *** evaluation on the ISPRS benchmark datasets shows that the proposed method outperforms other baseline networks,with minimum MAE and RMSE of 0.116 and 0.289 for the Vaihingen dataset and 0.077 and 0.481 for the Potsdam dataset,*** proposed method also shows around threefold data efficiency improvements on the Potsdam dataset and domain generalization on the Enschede *** results demonstrate the effectiveness of the proposed method in height map estimation from single-view remote sensing images.

关键词： Height estimation aerial imagery digital surface models contrastive learning local implicit constrain

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