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Journal of Animal Science and Biotechnology 2025年第1期16卷 388-407页

作者： Mingming Cao Liyun Bai Haoyun Wei Yantong Guo Guodong sun Haoyang sun Baoming Shi College of Animal Science and Technology Northeast Agricultural UniversityHarbin 150030PR China

Background Progressive oxidative stress easily occurs as a result of a gradual increase in the intensity of maternal metabolism due to rapid foetal development and increased intensity of ***,studies on the effects of processive oxidative stress on nutrient transport in the placenta have received little *** present study was conducted on sows at 85 days of gestation to study the effects of pterostilbene(PTE)on maternal oxidative stress status and placental nutrient *** PTE increased the antioxidant capacity and immunoglobulin content in mothers’blood and milk,reduced the level of inflammatory factors,and improved the nutrient content of *** also reduced sow backfat loss and the number of weak sons,and increased piglet weaning weight and total weaning litter *** subsequently found that PTE enhanced placental glucose and fatty acid transport and further affected glycolipid metabolism by increasing the expression of LAL,PYGM,and Gbe-1,which activated the PI3K phosphorylation ***,PTE addition altered the relative abundance of the Firmicutes,Proteobacteria,Parabacillus,and Bacteroidetes-like RF16 groups in sow *** increased the levels of acetate,propionate,butyrate and isovalerate in the *** These findings reveal that the addition of PTE during pregnancy and lactation mitigates the effects of processive oxidative stress on offspring development by altering maternal microbial and placental nutrient trans-port capacity.

关键词： Nutrient transporters Placenta Progressive oxidative stress Pterostilbene Sows

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Molecular dynamics simulation of quartz deformation under slow earthquake background

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Science China Earth Sciences 2025年第2期68卷 598-610页

作者： Jingxian sun Qianqian GUO Quanlin HOU College of Earth and Planetary Sciences University of Chinese Academy of SciencesKey Laboratory of Computational GeodynamicsCASBeijing 100049China

Slow earthquakes are the primary mechanism of slow energy release,and research on the focal mechanism has been *** have primarily focused on the friction law based on physical mechanisms and have suggested that slow earthquakes are caused by brittle ***,the focal strength and structural characteristics of slow earthquakes in subduction zones provide evidence of plastic *** is the role of plastic deformation in the focal mechanisms of slow earthquakes?Mechanochemical study have shown that mechanical forces can directly affect chemical *** this study,we examine the storage and release of chemical energy during plastic deformation and consider a mechanochemical process in the focal mechanism of slow *** with the Tersoff potential,molecular dynamics simulation on the shear deformation process of twoα-quartz crystals show that the shear modulus ofα-quartz is 18 GPa,and that the crystal model primarily exhibits atoms flowing and changing in the direction of chemical bonds during the steady-state flow *** molecular potential energy and stress vary in an oscillating up-and-down curve during shear,indicating that chemical energy can be stored and released during plastic *** is consistent with the energy variation during slow *** the initial simple-shear loading condition,α-quartz crystals undergo general shear deformation instead of plane strain and the angle between the longest instantaneous stretching axis(ISA_(1))and the shearing direction is approximately 30°,not 45°.Both the deformation type and direction of ISA_(1)are contrary to basic deformation theory,which may provide clues for future *** study reveals the process of quartz elastic-plastic shear deformation on an atomic *** information is useful for understanding focal mechanisms of slow *** study is part of a series of investigations on tectonic stress chemistry.

关键词： Slow earthquake α-quartz Plastic strain energy Tectonic stress chemistry Tersoff potential

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Fractal autoencoder with redundancy regularization for unsupervised feature selection

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Science China(Information Sciences) 2025年第2期68卷 89-102页

作者： Meiting sun Fangyu LI Honggui HAN School of Information Science and Technology Beijing University of Technology Beijing Key Laboratory of Computational Intelligence and Intelligent System Engineering Research Center of Digital Community Ministry of Education Beijing Institute of Artificial Intelligence

Feature selection is a crucial step in data preprocessing because feature selection reduces the dimensionality of data by eliminating irrelevant and redundant features. Since manual labeling is expensive, unsupervised feature selection has received increasing attention in recent years. However, existing unsupervised feature selection methods tend to prioritize selecting highly correlated features over exploring feature diversity. Thus, a regularized fractal autoencoder(RFAE) method is proposed to select informative features in an unsupervised way. Specifically, the fractal autoencoder network extends autoencoders to construct a correspondence neural network and a selection neural network. The correspondence neural network exploits interfeature correlations and the selection neural network selects the informative features. A redundancy regularization strategy consists of a redundancy elimination regularization term based on the dependency between features and a sparse regularization term based on the group lasso. The redundancy regularization strategy eliminates feature subset redundancy and enhances network generalization ability. Extensive experimental results on six publicly available datasets show that the proposed RFAE outperforms the compared methods regarding clustering accuracy and classification accuracy. Moreover, the proposed RFAE achieves acceptable computation efficiency.

关键词： unsupervised feature selection fractal autoencoder correspondence neural network selection neural network redundancy regularization strategy

A Computer Simulation Study on Deposition Patterns of Cyclic Diblock Copolymer Solution Nanodroplets:Influence of Polymer Length and Concentration

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Chemical Research in Chinese Universities 2025年第1期41卷 21-32页

作者： PEI Hanwen ZHANG Jun sun Zhaoyan State Key Laboratory of Polymer Physics and Chemistry&Key Laboratory of Polymer Science and Technology Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022P.R.China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei230026P.R.China

Molecular dynamics simulations are conducted to investigate the deposition patterns of cyclic diblock copolymer solution nanodroplets on solid surfaces(walls).The primary focus is how initial polymer concentration,chain length,and solvent-wall interaction affect these *** patterns are categorized into phase diagrams,mainly composed of multihollow,coffee-ring,and multilayer *** also study the deposition of polymer blocks with different adsorption behavior by adjusting the interaction strength between the polymer block and the wall[ε_(A(B)W)],including weakly adsorbable(ε_(A(B)W)=0.6),moderately adsorbable(ε_(A(B)W)=1.0),and strongly adsorbable(εA(B)W=1.2)polymer *** study identifies the key factors influencing the droplet’s deposition structure and elucidates the mechanisms behind pattern *** findings contribute to the design of deposition patterns for cyclic diblock copolymer solution nanodroplets,enhancing applications related to droplet evaporation.

关键词： Cyclic diblock copolymer Nanodroplet Evaporation Deposition pattern Chain length and concentration

Unraveling the complex interactions between plasmonic Ag nanoparticles and biomolecules for enhancing molecular chirality

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Science China Chemistry 2025年第2期68卷 543-551页

作者： Chen Wang Yunlong Tao Qingqing Cheng Dandan Lu Chuang Liu Guizeng Yang Xuehao sun Lichao sun Qingfeng Zhang College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power SourcesWuhan UniversityWuhan 430072China Suzhou Institute of Wuhan University Suzhou 215123China

Plasmonic nanostructures have been widely employed to enhance the chiral light-matter interactions for chirality sensing owing to their intriguing optical ***,a quantitative understanding of the correlation between enhanced molecular chirality and plasmonic properties in plasmonic nanoparticle-molecule complexes remains a challenge yet to be *** we demonstrate the complex interactions between Ag nanoparticles and biomolecules that generate distinct plasmonic circular dichroism signals ranging from UV to visible *** deliberately changing the surface coverage of chiral molecules,the geometry of Ag nanoparticles,and the aggregation states of the complexes,three distinct underlying mechanisms were found to be intertwined and hybridized for enhancing circular dichroism *** further employed the chiral plasmonic nanoparticle-molecule complexes to quantify the enantiomeric purity of cysteine and explore their possible applications in other chiral *** insights gained from this work shed light on the underlying mechanisms dictating the enhanced circular dichroism signals of chiral plasmonic nanoparticle-molecule complexes.

关键词： chiral plasmonics plasmonic circular dichroism nanoparticle-molecule complexes Ag nanoparticles chirality sensing

MetaCoorNet: an improved generated residual network for grasping pose estimation

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Science China(Information Sciences) 2025年第03期68卷 242-257页

作者： Hejia GAO Chuanfeng HE Junjie ZHAO Changyin sun School of Artificial Intelligence Anhui University Engineering Research Center of Autonomous Unmanned System Technology Ministry of Education Anhui Provincial Key Laboratory of Security Artificial Intelligence Anhui University School of Automation Southeast University

Robotic grasping presents significant challenges due to variations in object properties, environmental complexities,and the demand for real-time operation. This study proposes the MetaCoorNet(MCN), which is a novel deep learning architecture specifically designed to address these challenges in robotic grasping pose estimation. By combining spatial and channel operators, the MetaCoor block is utilized to extract features efficiently. This architecture enhances feature selectivity by embedding location information into channel attention using a positional embedding technique within the coordinate attention mechanism. Consequently, the proposed MCN can focus on pertinent grasp-related regions. Furthermore, convolutional fusion blocks seamlessly integrate spatial and channel features, resulting in enhanced feature resolution and representation *** innovative design enables the proposed MCN to achieve state-of-the-art performance on the Cornell and Jacquard datasets,attaining accuracies of 98% and 91.2%, respectively. The effectiveness and robustness of MCN are further validated through real-world experiments conducted using a seven-degree-of-freedom Kinova manipulator.

关键词： generative ResNet meta light block coordinate attention feature resolution robot grasping

Intelligent interaction system based on multimodal conformal triboelectric nanogenerator patch for disabled sports and life

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Science China(Technological Sciences) 2025年第2期68卷 290-305页

作者： Yuzhang wen Mengqi ZHANG Zhenning XIE Zida AN Bing LIU Fengxin sun Tianming ZHAO Zuojun YU Fei WANG Yupeng MAO Physical Education Department Northeastern UniversityShenyang 110819China Faculty of Robot Science and Engineering Northeastern UniversityShenyang 110819China China Ice Sports College Beijing Sport UniversityBeijing 100084China State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016China Criminal Investigation Police University of China Shenyang 110035China

Intelligent interaction technology based on advanced sensing units has become a research *** this paper,an intelligent interaction system(IIS)based on a multimodal conformal triboelectric nanogenerator patch(MCTP)is reported for sports monitoring and life promotion of the *** IIS consists of a cloud-based smart sports recognition program and a smart life *** porous micro-reinforced structure of polyurethane(PU)Sponge&Ecoflex,and the surface modification of PTFE by coating it with MXene endows the MCTP with excellent electrical *** shows good angle and force sensitivities of 1.1 V/°and 1.61 V/N,respectively,and has an ultra-fast response time of 15 ms,meeting the needs of human motion *** MCTP can also capture the mechanical energy,producing a maximum output power of 139μ*** with the commercial inertial measuring unit(IMU),the MCTP shows better consistency in human joint angle sensing.A precise analysis of wheelchair curling sports monitoring points is achieved by combining the MCTP and the human anatomy *** cloud-based smart sports recognition program utilizes machine learning to achieve visual feedback on the three throwing technologies of draw,takeout and *** addition,the developed smart life application uses a highsensitivity MCTP-sensor array design to achieve a variety of smart home interactions through simple finger ***,the IIS integrates the three major functions of smart sports sensing,energy capture,and smart home control,providing important application prospects in the fields of smart sports and human-computer interaction for the disabled.

关键词： triboelectric nanogenerator machine learning smart sports smart home human-computer interaction

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Role of macrophage polarization in diabetic foot ulcer healing:A bibliometric study

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World Journal of Diabetes 2025年第1期16卷 169-186页

作者： You-wen Zhang Lei sun Yan-Nan Wang Shi-Yu Zhan Department of Peripheral Vascular Disease Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinan 250014Shandong ProvinceChina Department of Surgery The Second Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinan 250001Shandong ProvinceChina Department of Surgery Longkou Traditional Chinese Medicine HospitalYantai 265701Shandong ProvinceChina

BACKGROUND Diabetic foot ulcers(DFUs)are a significant contributor to disability and mortality in diabetic *** polarization and functional regulation are promising areas of research and show therapeutic potential in the field of DFU ***,the complex mechanism,the difficulty in clinical translation,and the large heterogeneity present significant ***,this study was to comprehensively analyze the publication status and trends of studies on macrophage polarization and DFU *** To examine the relevant literature on macrophage polarization in DFU *** A bibliometric analysis was conducted using the Web of Science *** literature was retrieved from the Web of Science Core Collection database between 2013 to 2023 using literature visualization and analysis software(VOSviewer and CiteSpace)and bibliometric online *** obtained literature was then subjected to visualization and analysis of different countries/regions,institutions,journals,authors,and keywords to reveal the research’s major trends and *** The number of publications on the role of macrophage polarization in DFU healing increased rapidly from 2013 to 2023,especially in the latter *** researchers were the most prolific in this field,with 217 publications,while American researchers had been engaged in this field for a longer *** Tan of Nanjing Drum Tower Hospital and Qian Ding of Nanjing University were the first to publish in this *** Jiao Tong University was the institution with the most publications(27).The keywords“bone marrow”,“adjustment,replacement,response,tissue repair”,and“activation,repair,differentiation”appeared more *** study of macrophage polarization in DFU healing focused on the regulatory mechanism,gene expression,and other *** This study through the bibliometric method reveals the research trends and development trends in this field of macrophage polar

关键词： Diabetic foot Wound healing Macrophage polarization Bibliometric analysis Research cooperation Research trend

Output Consensus of Heterogeneous Linear MASs via Adaptive Event-Triggered Feedback Combination Control

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IEEE/CAA Journal of Automatica Sinica 2025年第1期12卷 285-287页

作者： Shuo Yuan Chengpu Yu Jian sun the School of Automation Beijing Institute of Technology the Beijing Institute of Technology Chongqing Innovation Center

Dear Editor,This letter studies output consensus problem of heterogeneous linear multiagent systems over directed graphs. A novel adaptive dynamic event-triggered controller is presented based only on the feedback combination of the agent's own state and neighbors' output,which can achieve exponential output consensus through intermittent communication. The controller is obtained by solving two linear matrix equations, and Zeno behavior is excluded.

关键词： Directed graphs

Improved reference-frame-independent quantum key distribution with intensity fluctuations

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Chinese Physics B 2025年第2期34卷 48-52页

作者： Zi-Qi Chen Hao-Bing sun Ming-Shuo sun Qin Wang Institute of Quantum Information and Technology Nanjing University of Posts and TelecommunicationsNanjing 210003China Broadband Wireless Communication and Sensor Network Technology Key Laboratory of Ministry of EducationNanjing University of Posts and TelecommunicationsNanjing 210003China

Reference-frame-independent quantum key distribution(RFI-QKD) can avoid real-time calibration operation of reference frames and improve the efficiency of the communication process. However, due to imperfections of optical devices,there will inevitably exist intensity fluctuations in the source side of the QKD system, which will affect the final secure key rate. To reduce the influence of intensity fluctuations, an improved 3-intensity RFI-QKD scheme is proposed in this *** considering statistical fluctuations and implementing global parameter optimization, we conduct corresponding simulation analysis. The results show that our present work can present both higher key rate and a farther transmission distance than the standard method.

关键词： quantum key distribution intensity fluctuations decoy-state method