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FedFV: A Personalized Federated Learning Framework for Finger Vein Authentication

Machine Intelligence Research 2023年第5期20卷 683-696页

作者： Feng-Zhao Lian jun-duan huang Ji-Xin Liu Guang Chen jun-Hong Zhao Wen-Xiong Kang School of Automation Science and Engineering South China University of TechnologyGuangzhou 510641China GRG Banking Equipment Co.Ltd. Guangzhou 510663China School of Automation Guangdong University of Petrochemical TechnologyMaoming 525000China

Most finger vein authentication systems suffer from the problem of small sample ***,the data augmentation can alleviate this problem to a certain extent but did not fundamentally solve the problem of category *** the researchers resort to pre-training or multi-source data joint training methods,but these methods will lead to the problem of user privacy *** view of the above issues,this paper proposes a federated learning-based finger vein authentication framework(FedFV)to solve the problem of small sample size and category diversity while protecting user *** training under FedFV,each client can share the knowledge learned from its user′s finger vein data with the federated client without causing template *** addition,we further propose an efficient personalized federated aggregation algorithm,named federated weighted proportion reduction(FedWPR),to tackle the problem of non-independent identically distribution caused by client diversity,thus achieving the best performance for each *** thoroughly evaluate the effectiveness of FedFV,comprehensive experiments are conducted on nine publicly available finger vein *** results show that FedFV can improve the performance of the finger vein authentication system without directly using other client *** the best of our knowledge,FedFV is the first personalized federated finger vein authentication framework,which has some reference value for subsequent biometric privacy protection research.

关键词： Finger vein personalized federated learning privacy protection biometric authentication.

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STRUCTURE OF A Cu (Ⅱ) COMPLEX WITH MIXED LIGANDS, DIETHYLENETRIAMINE ETH YLENEDIAMINE COPPER (Ⅱ) DIPERCHLORATE

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Chinese Journal of Structural Chemistry 1993年第1期 5-9页

作者： Xu duan-jun huang Ling-Bo Xu Yuan-Zhi Cheng Chao-RongDepartment of Chemistry , Zhejiang UniversityChen JieShanghai Institute of Biochemistry , Academic Sinica of China

CuC6H21N5O8Cl2, Mr = 425. 5, monoclinic, P21/n, a = 8. 418 (2), b = 14.450(4), c= 12. 940(3)A, β=98. 13(2)% V = 1572. 9A3,Z = 4, Dx= 1. 797g. cm-3,μ(MoKa) = 18. 3cm-1. The crystal structure consists of discrete complex cations and perchlorate anions. The coordination geometry around Cu(Ⅱ) atom is a distorted square pyramid. The complex cations are disordered in the crystal,the ethylenediamine ligand chelates to the Cu(Ⅱ ) atom in δ arid λ conformation in different cells. The average Cu-N distance is 2. 03 A in the equatorial plane while the Cu -N distance is 2. 25 A in the axial direction.

关键词： STRUCTURE OF A Cu COMPLEX WITH MIXED LIGANDS DIETHYLENETRIAMINE ETH YLENEDIAMINE COPPER DIPERCHLORATE IA ETH

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A regularization method for delivering the fourth-order derivative of experimental data and its applications in fluid-structure interactions

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Science China Technological Sciences 2025年第3期68卷 363-380页

作者： Fan duan Jin-jun WANG Fluid Mechanics Key Laboratory of Education Ministry Beijing University of Aeronautics and Astronautics

In the experimental investigation of fluid-structure interactions regarding the undulatory motion like flag flapping or fish swimming, solving the force distribution on the flexible body stands as an indispensable endeavor to gain insights into the underlying dynamic mechanisms. However, the solving process entails high-order numerical derivatives of experimental data, which poses a formidable challenge for experimental studies on fluid-structure interactions, given that the measurement noise inherent in experimental data renders the problem ill-posed. The commonly practiced regularization methods for numerical derivatives are feeble to tackle the fourth-order derivative associated with the bending force; those methods, in particular, require predetermined parameters about the unknown noise. We introduce here an empirical regularization method founded upon the kernel-term modification in the frequency domain, notably capable of determining the fourth derivative of experimental *** leveraging the potentials of the iterative operations, our method enables the reliable estimation of an approximately optimal regularization parameter, all without reliance on any a priori knowledge about the noise characteristics. To demonstrate the reliability, robustness, and accuracy of the method, we perform rigorous numerical assessments using different data models that are infused with noise varying several orders of magnitude. Additionally, practical application of this method is achieved in the experiment on a flexible film flapping in the gusty flow, where the spatiotemporal distribution of the bending force density on the film is calculated by integrating this method with a linear reconstruction.

关键词： high-order numerical derivative regularization film fluid-structure interactions bending force

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“No-donor” liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2025年第1期24卷 23-28页

作者： Yong-Fa huang Zhi-jun Zhu Liver Transplantation Center National Clinical Research Center for Digestive Diseases Beijing Friendship Hospital Capital Medical University Clinical Center for Pediatric Liver Transplantation Capital Medical University

Liver transplantation is hindered by organ shortage. The potential way to relieve this issue is to expand the donor pool via extending the donor criteria and make full use of all available grafts. The concept of “no-donor” liver transplantation allows grafts to be recovered from other liver recipients. This review summarizes the current clinical practice of “no-donor” liver transplantation, focusing on the experiences of Chinese transplant teams. Domino liver transplantation was introduced by Furtado in 1995 and implemented later in 2013 in China, and novel donor indications including some essential-to-treat inherited metabolic liver-based diseases have emerged. The concept of cross-auxiliary domino liver transplantation brings a further expansion of the domino liver graft pool, and the first pair of liver transplantation performed “rigorously without donation” was accomplished in our center in 2018. Our experience with this original transplantation procedure is hereby reviewed. In order to further promote and make successful “no-donor” liver transplantation, close co-operation between researchers, surgeons, physicians, organ procurement organizations, as well as ethical committees is required.

关键词： Domino liver transplantation Cross-auxiliary domino liver transplantation Inherited metabolic liver-based disease

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Dual-phase interface engineering via parallel modulation strategy for highly reversible Zn metal batteries

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Journal of Energy Chemistry 2025年第2期101卷 163-174页

作者： Zhean Bao Yang Wang Kun Zhang Guosheng duan Leilei Sun Sinan Zheng Bin Luo Zhizhen Ye Jingyun huang School of Materials Science and Engineering State Key Laboratory of Silicon and Advanced Semiconductor Materials Zhejiang University Institute of Wenzhou Zhejiang University Institute of Thermal Science and Power Systems Zhejiang University Longmen Laboratory of Luoyang

The reversibility and stability of aqueous Zn metal batteries（AZMBs） are largely limited by Zn dendrites and interfacial parasitic ***,we propose a parallel modulation strategy to boost the reversibility of the Zn anode by introducing N,N,N',N'-tetramethylchloroformamidinium hexafluorophosphate（TCFH） as an additive in the *** is composed of PF6-and TN+with opposite ***6-can spontaneously induce the in-situ generation of ZnF2solid electrolyte interface（SEI） on the anode,which can improve the transport kinetics of Zn2+at the interface,thus promoting the rapid and uniform deposition of Zn as well as inhibiting the growth of *** addition,TN+is enriched at the anode surface during Zn deposition through the anchoring effect,which brings a reconfiguration of the ion/molecule *** anchored-TN+reduces the concentrations of H2O and SO42-,sufficiently restraining the parasitic *** to the dual-phase interface engineering constructed of PF6-and TN+in parallel,the symmetric cell with the proposed electrolyte survives long cycling stability over750 h at 20 mA cm-2,10 mAh *** study offers a distinct viewpoint to the multidimensional optimization of Zn anodes for high-performance AZMBs.

关键词： Anchoring effect Aqueous Zn metal batteries Electrolyte additive Solid electrolyte interface Zn anode

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Encapsulating lipase on the surface of magnetic ZIF-8 nanosphers with mesoporous SiO2 nano-membrane for enhancing catalytic performance

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Chinese Chemical Letters 2025年第2期36卷 279-283页

作者： Guang-Xu duan Queting Chen Rui-Rui Shao Hui-huang Sun Tong Yuan Dong-Hao Zhang College of Pharmaceutical Science Hebei University Affiliated Hospital of Hebei University Key Laboratory of Pharmaceutical Quality Control of Hebei Province College of Pharmaceutical ScienceHebei University Institute of Life Science and Green Development Hebei University

The preparation of immobilized enzyme with excellent performance is one of the difficulties that restrict the application of enzyme catalysis technology. Here, Candida rugosa lipase（CRL） was firstly adsorbed on the surface of magnetic zeolitic imidazolate framework-8（ZIF-8） nanospheres, which was further encapsulated with a mesoporous SiO2nano-membrane formed by tetraethyl orthosilicate（TEOS） polycondensation. Consequently, lipase could be firmly immobilized on carrier surface by physical binding rather than chemical binding, which did not damage the active conformation of enzyme. There were mesopores on the silica nano-membrane, which could improve the accessibility of enzyme and its apparent catalytic activity. Moreover, silica membrane encapsulation could also improve the stability of enzyme, suggesting an effective enzyme immobilization strategy. It showed that TEOS amount and the encapsulation time had significant effects on the thickness of silica membrane and the enzyme activity. The analysis in enzyme activity and protein secondary structure showed that lipase encapsulated in silica membrane retained the active conformation to the greatest extent. Compared with the adsorbed lipase, the encapsulated lipase increased its thermostability by 3 times and resistance to chemical denaturants by 7 times. The relative enzyme activity remained around 80% after 8 repetitions, while the adsorbed lipase only remained at7.3%.

关键词： Encapsulation Enzyme immobilization Lipase activity Mesoporous silica membrane ZIF-8

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Mechanism study of the molluscicide candidate PBQ on Pomacea canaliculata using a viscosity-sensitive fluorescent probe

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Chinese Chemical Letters 2025年第1期36卷 447-452页

作者： Lanyun Zhang Weisi Wang Yu-Qiang Zhao Rui huang Yuxun Lu Ying Chen Liping duan Ying Zhou Yunnan Characteristic Plant Extraction Laboratory College of Chemical Science and TechnologyYunnan UniversityKunming 650091China National Institute of Parasitic Diseases Chinese Center for Disease Control and PreventionChinese Center for Tropical Diseases ResearchWHO Centre for Tropical DiseasesNational Key Laboratory of Inteligent Tracking and Forecasting for Infectious DiseasesKey Laboratory on Parasite and Vector Biology MinistryofHealthShanghai200025China

PBQ[1-(4-chlorophenyl)-3-(pyridin-3-yl)urea],an enormous potent molluscicide,showed excellent Pomacea canaliculata(***)control activity and low toxicity for other aquatic organisms,but its snail-killing mechanisms are still not fully *** employed an optical method to elucidate PBQ action via a novel fluorescent viscosity probe,*** the viscosity in the test solutions increased,compared with that in pure ethanol,a 54-fold fluorescence intensity enhancement of NCV was observed in 310 cP of 90%***,NCV successfully exhibited a selective fluorescence response towards monensin-induced cellular viscosity changes in HepG2 *** liver,stomach,and foot plantar of the tested snails were frozen and sectioned for fluorescent imaging experiments after the treatment with different PBQ concentrations over various times.A significant fluorescent increase in the snail's liver was observed upon exposure to 0.75 mg/L PBQ for 72 h,which highlighted an increase in *** and eosin(HE)staining further supported PBQ-induced liver damage with a viscosity increase in *** study provides a new rapid optical visualization method to study the killing mechanisms of PBQ and may help discover new chemicals that control snail populations.

关键词： Fluorescence sensor Viscosity Pomacea canaliculata Molluscicide mechanisms Bio-imaging

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Advances in CRISPR-based gene editing technology and its application in nucleic acid detection

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BIOCELL 2025年第1期49卷 21-43页

作者： LIUJIE CHEN LILI duan JIA LI jun CHEN duanFANG LIAO NONGYUE HE KAI LI ZHENG HU Translational Medicine Institute the First People’s Hospital of ChenzhouHengyang Medical SchoolUniversity of South ChinaChenzhou423000China The First Clinical College of Xiangnan University The First Affiliated Hospital of Xiangnan UniversityChenzhou423000China National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology Hunan University of Chinese MedicineChangsha410208China State Key Laboratory of Digital Medical Engineering School of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China

Nucleic acid analysis is a key technique that enables accurate detection of various *** nucleic acid testing typically requires access to specialized laboratories,equipment,and trained personnel,which hinders the widespread use of on-site testing for DNA and RNA ***,integrating gene editing technology with traditional nucleic acid detection methods,especially isothermal amplification technology,can help overcome the limitations associated with on-site *** combination can accomplish precise and swift detection of nucleic acid sequences,offering a robust tool for on-site *** Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR-associated proteins(CRISPR/Cas)technology,which comprises the CRISPR system and Cas effector proteins,is a powerful tool that is advancing the field of nucleic acid ***,Cas12,Cas13,and Cas14 proteins have emerged as straightforward,effective,precise,sensitive,and cost-effective methods for in vitro nucleic acid detection because of their“collateral cleavage”*** combined with the“collateral cleavage”ability of Cas protein and isothermal amplification,CRISPR/Cas systems have great potential to advance nucleic acid *** article summarizes the research progress of different CRISPR/Cas systems and their applications in nucleic acid detection and future perspectives.

关键词： CRISPR/Cas Pathogen Clinical application

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Persistent alterations in gray matter in COVID-19 patients experiencing sleep disturbances:a 3-month longitudinal study

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Neural Regeneration Research 2025年第10期20卷 3013-3024页

作者： Kaixuan Zhou Gaoxiong duan Ying Liu Bei Peng Xiaoyan Zhou Lixia Qin Lingyan Liang Yichen Wei Qingping Zhang Xiaocheng Li Haixia Qin Yinqi Lai Yian Lu Yan Zhang Jiazhu huang Jinli huang Yinfei Ouyang Bolin Bin Mingming Zhao jun Liu Jianrong Yang Demao Deng Guangxi Key Laboratory of Special Biomedicine School of MedicineGuangxi UniversityNanningGuangxi Zhuang Autonomous RegionChina Department of Radiology the People’s Hospital of Guangxi Zhuang Autonomous RegionGuangxi Academy of Medical SciencesNanningGuangxi Zhuang Autonomous RegionChina Department of Sleep Medicine the People’s Hospital of Guangxi Zhuang Autonomous RegionNanningGuangxi Zhuang Autonomous RegionChina Department of Radiology The Second Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina Guangxi Clinical Research Center for Sleep Medicine the People’s Hospital of Guangxi Zhuang Autonomous RegionNanningGuangxi Zhuang Autonomous RegionChina

Sleep disturbances are among the most prevalent neuropsychiatric symptoms in individuals who have recovered from severe acute respiratory syndrome coronavirus 2 *** studies have demonstrated abnormal brain structures in patients with sleep disturbances who have recovered from coronavirus disease 2019(COVID-19).However,neuroimaging studies on sleep disturbances caused by COVID-19 are scarce,and existing studies have primarily focused on the long-term effects of the virus,with minimal acute phase *** a result,little is known about the pathophysiology of sleep disturbances in the acute phase of *** address this issue,we designed a longitudinal study to investigate whether alterations in brain structure occur during the acute phase of infection,and verified the results using 3-month follow-up data.A total of 26 COVID-19 patients with sleep disturbances(aged 51.5±13.57 years,8 women and 18 men),27 COVID-19 patients without sleep disturbances(aged 47.33±15.98 years,9 women and 18 men),and 31 age-and gender-matched healthy controls(aged 49.19±17.51 years,9 women and 22 men)were included in this *** COVID-19 patients with sleep disturbances were included in a longitudinal *** found that COVID-19 patients with sleep disturbances exhibited brain structural changes in almost all brain *** cortical thicknesses of the left pars opercularis and left precuneus were significantly negatively correlated with Pittsburgh Sleep Quality Index ***,we observed changes in the volume of the hippocampus and its subfield regions in COVID-19 patients compared with the healthy *** 3-month follow-up data revealed indices of altered cerebral structure(cortical thickness,cortical grey matter volume,and cortical surface area)in the frontal-parietal cortex compared with the baseline in COVID-19 patients with sleep *** findings indicate that the sleep disturbances patients had altered morphology in the cortical an

关键词： brain structure cortical gray matter volume cortical surface area cortical thickness hippocampus magnetic resonance imaging Pittsburgh Sleep Quality Index severe acute respiratory syndrome coronavirus 2 infections sleep disturbances sub-cortical volume

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Graphene oxide wrapped-silica microspheres humidity sensor with fast response/recovery, high sensitivity, and selectivity for pig respiratory rate monitoring

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Science China Technological Sciences 2025年第2期68卷 90-100页

作者： Jing LI Bo LI Ziqi LIAO Yunhui duan Xinglan FU Yuehua huang Guanglin LI College of Engineering and Technology Southwest University Modern Agricultural Equipment Research Institute Xihua University

Respiratory rate monitoring is of great significance in pig healthy breeding for the early detection and timely prevention of respiratory diseases. Humidity sensing is an important noncontact method to monitor pig respiration, which does not cause direct harm to pigs and meets the requirements of animal welfare. This paper proposes a humidity sensor based on graphene oxide wrapped-silica microspheres（GO@SiO2）. First, the sensor shows fast response/recovery performances of0.24/0.73 s. Experiments demonstrate that the wrapped microsphere structure can inhibit water aggregation. It is speculated that the wrapped microsphere structure can inhibit the stacking of GO, and its curved surface can promote the evaporation of water molecules. Second, the sensor shows a high sensitivity of 1.2%/%RH–4.2%/%RH in 11%–95% RH range. This can be attributed to different sensing mechanisms, from hopping transport to increasing ion transport, leading to a significant change in the sensor's resistance. Third, the sensor shows selectivity to water molecules due to the hydrophilic characteristic of GO and the significant increase in conductivity by ion transport. Finally, the sensor is applied to realize the respiratory rate monitoring of adult pigs and piglets.

关键词： pig respiratory monitoring GO@SiO2 humidity sensor fast response/recovery high sensitivity selectivity

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