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Advances in the Development of Gradient Scaffolds Made of Nano‑Micromaterials for Musculoskeletal Tissue Regeneration

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Nano-Micro Letters 2025年第3期17卷 455-500页

作者： Lei Fang Xiaoqi lin Ruian Xu Lu Liu Yu Zhang feng Tian Jiao Jiao Li Jiajia Xue Beijing Laboratory of Biomedical Materials Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China State Key Laboratory of Organic‑Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China School of Biomedical Engineering Faculty of Engineering and ITUniversity of Technology SydneySydneyNSW 2007Australia

The intricate hierarchical structure of musculoskeletal tissues,including bone and interface tissues,necessitates the use of complex scaffold designs and material structures to serve as tissue-engineered *** has led to growing interest in the development of gradient bone scaffolds with hierarchical structures mimicking the extracellular matrix of native tissues to achieve improved therapeutic *** on the anatomical characteristics of bone and interfacial tissues,this review provides a summary of current strategies used to design and fabricate biomimetic gradient scaffolds for repairing musculoskeletal tissues,specifically focusing on methods used to construct compositional and structural gradients within the *** latest applications of gradient scaffolds for the regeneration of bone,osteochondral,and tendon-to-bone interfaces are ***,the current progress of testing gradient scaffolds in physiologically relevant animal models of skeletal repair is discussed,as well as the challenges and prospects of moving these scaffolds into clinical application for treating musculoskeletal injuries.

关键词： Gradient scaffolds Musculoskeletal tissues Advanced manufacturing Biomaterials Tissue regeneration

Mainchain conformation ordering self-assembly tailored room temperature phosphorescence emission

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Science China Chemistry 2025年第1期68卷 329-336页

作者： Yuzhu Li Yumeng Gao feng Tian Yu Wang Yuan Yao Shaoliang lin Xiang Ma Binbin Xu Shanghai Key Laboratory of Advanced Polymeric Materials Key Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre Frontiers Science for Materiobiology and Dynamic ChemistrySchool of Chemistry and Molecular EngineeringEast China University of Science&TechnologyShanghai 200237China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China

Developing organic room-temperature phosphorescence(RTP)materials with a wide range of tunable-emission is significant in expanding the applications of RTP ***,we rationally designed amphiphilic alternating copolymers poly(1,2-bis(4-alkoxyphenyl)ethane-1,2-dione-alt-(ethylene glycol)x)(P(Bz-alt-EGx))that combined the advantage of alternating benzil and EGxskeleton,and tunable mainchain *** a mainchain conformation ordering assembly(COA)process,P(Bz-alt-EGx)self-assembled into well-defined platelets,and such assemblies emitted blue RTP at ca.425 nm due to the ordered folded-chain conformation and confined *** contrast,traditional self-assembly(TA)of P(Bz-alt-EGx)obtained less ordered aggregates,such as asymmetric worms,vesicles,and rod-like *** resultant less ordered aggregates exhibited yellow-green RTP at ca.550 *** wide-tuning RTP emission in solution(between blue and yellow-green,over125 nm)is realized using the P(Bz-alt-EG_(x))alternating copolymers under the treatment of different self-assembly *** study uncovers a new strategy to tailor the RTP emission through different self-assembly pathways and holds great promise for the fabrication of advanced optical materials.

关键词： self-assembly conformation ordering alternating copolymer phosphorescence emission

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内河双壳船极限强度分析

船海工程 2008年第6期37卷 33-35页

作者：邓林峰杨平武汉理工大学交通学院武汉430063

对内河双壳船达到极限状态时剖面上的应力分布情况进行假设,采用直接法对极限强度计算的公式进行推导,并对一条内河双壳实船在完整和破损状态的结构极限承载力进行计算与比较。结果表明,所假设的应力分布对这一类型船舶的极限强度的计... 详细信息

对内河双壳船达到极限状态时剖面上的应力分布情况进行假设,采用直接法对极限强度计算的公式进行推导,并对一条内河双壳实船在完整和破损状态的结构极限承载力进行计算与比较。结果表明,所假设的应力分布对这一类型船舶的极限强度的计算结果具有较高的精度,可以用来估算此系列船舶在完整和破损状态下的极限强度。

关键词：双壳船破损船体极限强度

Propagating subduction initiation of the Caroline Plate at the Mussau Trench

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Science China Earth Sciences 2025年第1期68卷 253-269页

作者： Chun-feng LI Yongkang deng Tao WU Dongdong DONG Guoliang ZHANG Jiazheng ZHANG Yutao LIU Yaqing LI Fugui TANG Lulu ZHANG Department of Marine Sciences Zhejiang UniversityZhoushan316021China Laboratory of Marine Mineral Resources Laoshan LaboratoryQingdao266237China Key Lab of Marine Geology and Environment Institute of OceanologyChinese Academy of SciencesQingdao266071China Key Lab of Ocean and Marginal Sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou510301China Science&Technology on Integrated Information System Lab Institute of SoftwareChinese Academy of SciencesBeijing100190China

New seismic imaging from the Mussau Trench confirms that,under horizontal compression on an oceanic plate boundary,it is within the young and weak oceanic plate that a trench will develop,and it is the young plate,not so long after its birth,that starts to subduct toward the old *** Mesozoic Pacific Plate cannot easily bend,under the joint horizontal compression and vertical gravity pull,even with a pre-existing weak zone in place and with a large age offset across the plate *** bending of the Caroline Plate near the northern end of the Mussau Trench started only after a long-time span of trench migration,and/or after a prolonged transition from initial compression to trench *** contrasting trench deformation and sedimentary accretion between two parallel seismic sections support an evident migration of underthrusting or significant longitudinal heterogeneity along the *** swift transition from underthrusting to non-thrusting can be explained by a counter-clockwise rotation of the Caroline *** miniature accretionary wedges develop even before the subduction initiates imply strong compression and uplifting before the underthrusting can *** of the Caroline Plate have been halted as the Mussau Trench is seismically rather quiet and the Lyra Trough to the east shows relaxational extension.

关键词： Mussau Trench Subduction initiation Seismic reflection Caroline Plate

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Lagrangian Modelling and Motion Stability of Synchronous Generator-based Power Systems

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CSEE Journal of Power and Energy Systems 2025年第1期11卷 13-23页

作者： feng Ji Lu Gao Chang lin State Key Laboratory of Advanced Transmission Technology China Electric Power Research InstituteBeijing102209China

This paper proposes to analyze the motion stability of synchronous generator-based power systems using a Lagrangian model derived in the configuration space of generalized position and speed.A Lagrangian model of synchronous generators is derived based on Lagrangian *** generalized potential energy of inductors and the generalized kinetic energy of capacitors are *** mechanical and electrical dynamics can be modelled in a unified manner by constructing a Lagrangian *** the first benchmark model of sub-synchronous oscillation as an example,a Lagragian model is constructed,and a numerical solution of the model is obtained to validate the accuracy and effectiveness of the *** with the traditional EMTP model in PSCAD,the obtained Lagrangian model is able to accurately describe the electromagnetic transient process of the ***,the Lagrangian model is analytical,which enables the analysis of the motion stability of the system using Lyapunov's motion stability *** Lagrangian model can not only be used for discussing the power angle stability but also for analyzing the stability of node voltages and system *** provides the feasibility for studying the unified stability of power systems.

关键词： Lagrangian mechanics Lyapunov's first method motion stability sub-synchronous resonance

聂耳公园海绵城市建设中质量安全巡检系统的应用

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中国给水排水 2019年第12期35卷 96-99页

作者：邓林峰邓剑朱磊森郑琳琳乔稳超中国建筑第二工程局有限公司

以玉溪市聂耳公园为例,通过与广联达合作,开发出根据聂耳公园现场管理情况所建立的质量安全巡检系统。通过数据挖掘和分析,演绎找出解决方案的能力。将聂耳公园施工现场存在的质量安全问题统一规划,分析、预警、反馈到大数据中,使管理... 详细信息

以玉溪市聂耳公园为例,通过与广联达合作,开发出根据聂耳公园现场管理情况所建立的质量安全巡检系统。通过数据挖掘和分析,演绎找出解决方案的能力。将聂耳公园施工现场存在的质量安全问题统一规划,分析、预警、反馈到大数据中,使管理人员能够及时处理,在保证建筑效率的同时提高了建筑质量,产生了良好的社会效益、人员效益、管理效益。

关键词：质量安全巡检系统大数据动态管理海绵城市

基于KSLPP与RWKNN的旋转机械故障诊断

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振动与冲击 2016年第8期35卷 219-223页

作者：王雪冬赵荣珍邓林峰兰州理工大学机电工程学院兰州730050

针对旋转机械高维故障特征集识别精度低的问题,提出基于核监督局部保留投影(Kernel Supervised Locality Preserving Projection,KSLPP)与Relief F特征加权的K近邻(Relief F Weighted K-Nearest Neighbor,RWKNN)分类器相结合的维数约简故障诊断方法。该方法首先应用KSLPP提取故障特征集中的非线性信息,同时在降维投影过程中充分利用类别信息,使降维后最小化类内散度,最大化类间分离度;随后,将降维后得到的低维敏感特征集输入RWKNN进行模式识别,RWKNN能够突出不同特征对分类的贡献率,强化敏感特征,弱化不相关特征,提升了分类精度和鲁棒性。最后,通过典型转子实验台的故障特征集验证了该方法的有效性。

关键词：故障诊断核监督局部保留投影 Relief F特征选择加权K近邻分类器

Research progress on the environmental risk assessment and remediation technologies of heavy metal pollution in agricultural soil

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Journal of Environmental Sciences 2025年第3期149卷 1-20页

作者： Xurui Mai Jing Tang Juexuan Tang Xinyue Zhu Zhenhao Yang Xi Liu Xiaojie Zhuang Guang feng lin Tang College of Environmental Science and Engineering Hunan UniversityChangsha 410082China Key Laboratory of Environmental Biology and Pollution Control(Hunan University) Ministry of EducationChangsha 410082China Power China Zhongnan Engineering Corporation Limited Changsha 410014China

Controlling heavy metal pollution in agricultural soil has been a significant *** heavy metals seriously threaten the surrounding ecological environment and human *** effective assessment and remediation of heavy metals in agricultural soils are *** two aspects support each other,forming a close and complete decisionmaking ***,this review systematically summarizes the distribution characteristics of soil heavy metal pollution,the correlation between soil and crop heavy metal contents,the presence pattern and migration and transformation mode of heavy metals in the soil-crop *** advantages and disadvantages of the risk evaluation tools and models of heavy metal pollution in farmland are further outlined,which provides important guidance for an in-depth understanding of the characteristics of heavymetal pollution in farmland soils and the assessment of the environmental *** remediation strategies involve multiple physical,chemical,biological and even combined technologies,and this paper compares the potential and effect of the above current remediation technologies in heavy metal polluted farmland ***,the main problems and possible research directions of future heavy metal risk assessment and remediation technologies in agricultural soils are *** review provides new ideas for effective assessment and selection of remediation technologies based on the characterization of soil heavy metals.

关键词： Source Migration transformation Risk assessment Remediation Heavy metals Agricultural soils

Development and application of an intelligent thermal state monitoring system for sintering machine tails based on CNN-LSTM hybrid neural networks

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Journal of Iron and Steel Research International 2025年第1期32卷 52-63页

作者： Da-lin Xiong Xin-yu Zhang Zheng-wei Yu Xue-feng Zhang Hong-ming Long Liang-jun Chen Anhui Province Key Laboratory of Metallurgical Engineering&Resources Recycling Anhui University of TechnologyMa’anshan243002AnhuiChina School of Metallurgical Engineering Anhui University of TechnologyMa’anshan243032AnhuiChina School of Computer Science Anhui University of TechnologyMa’anshan243032AnhuiChina

Real-time prediction and precise control of sinter quality are pivotal for energy saving,cost reduction,quality improvement and efficiency enhancement in the ironmaking *** advance,the accuracy and comprehensiveness of sinter quality prediction,an intelligent flare monitoring system for sintering machine tails that combines hybrid neural networks integrating convolutional neural network with long short-term memory(CNN-LSTM)networks was *** system utilized a high-temperature thermal imager for image acquisition at the sintering machine tail and employed a zone-triggered method to accurately capture dynamic feature images under challenging conditions of high-temperature,high dust,and *** feature images were then segmented through a triple-iteration multi-thresholding approach based on the maximum between-class variance method to minimize detail loss during the segmentation *** the advantages of CNN and LSTM networks in capturing temporal and spatial information,a comprehensive model for sinter quality prediction was constructed,with inputs including the proportion of combustion layer,porosity rate,temperature distribution,and image features obtained from the convolutional neural network,and outputs comprising quality indicators such as underburning index,uniformity index,and FeO content of the *** accuracy is notably increased,achieving a 95.8%hit rate within an error margin of±*** the system is applied,the average qualified rate of FeO content increases from 87.24%to 89.99%,representing an improvement of 2.75%.The average monthly solid fuel consumption is reduced from 49.75 to 46.44 kg/t,leading to a 6.65%reduction and underscoring significant energy saving and cost reduction effects.

关键词： Sinter quality Convolutional neural network Long short-term memory Image segmentation FeO prediction