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Review of recent advances in ferrite-based materials:From synthesis techniques to electromagnetic wave absorption performance

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International Journal of Minerals,Metallurgy and Materials 2025年第3期32卷 591-608页

作者： Xingliang Chen Di Lan Luoting Zhou Hailing Liu Xiyu Song Shouyu Wang Zhuanyong Zou Guanglei Wu Shaoxing Key Laboratory of High Performance Fibers&Products Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang ProvinceShaoxing UniversityShaoxing 312000China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China Chinatesta(Zhejiang)Testing Services Co. Ltd.Shaoxing 312000China Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China

With the booming development of electronic information science and 5G communication technology,electromagnetic radi-ation pollution poses a huge threat and damage to *** novel and high-performance electromagnetic wave(EMW)ab-sorbers is an effective method to solve the above issue and has attracted the attention of many *** a typical magnetic material,ferrite plays an important role in the design of high-performance EMW absorbers,and related research focuses on diversified synthesis methods,strong absorption performance,and refined microstructure ***,we focus on the synthesis of ferrites and their composites and introduce recent advances in the high-temperature solid-phase method,sol-gel method,chemical coprecipitation method,and solvent thermal method in the preparation of high-performance EMW *** review aims to help researchers understand the advantages and disadvantages of ferrite-based EMW absorbers fabricated through these *** also provides important guidance and reference for researchers to design high-performance EMW absorption materials based on ferrite.

关键词： ferrite electromagnetic wave absorber sol-gel method magnetic material solvent thermal method

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Evaluating large language models as patient education tools for inflammatory bowel disease:A comparative study

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World Journal of Gastroenterology 2025年第6期31卷 34-43页

作者： Yan Zhang Xiao-Han Wan Qing-Zhou Kong Han Liu Jun Liu Jing Guo Xiao-Yun Yang Xiu-Li Zuo Yan-Qing Li Department of Gastroenterology Qilu Hospital of Shandong UniversityJinan 250012Shandong ProvinceChina Laboratory of Translational Gastroenterology Qilu Hospital of Shandong UniversityJinan 250012Shandong ProvinceChina Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor Qilu Hospital of Shandong UniversityJinan 250012Shandong ProvinceChina Shandong Provincial Clinical Research Center for Digestive Disease Qilu Hospital of Shandong UniversityJinan 250012Shandong ProvinceChina

BACKGROUND Inflammatory bowel disease(IBD)is a global health burden that affects millions of individuals worldwide,necessitating extensive patient *** language models(LLMs)hold promise for addressing patient information ***,LLM use to deliver accurate and comprehensible IBD-related medical information has yet to be thoroughly *** To assess the utility of three LLMs(ChatGPT-4.0,Claude-3-Opus,and Gemini-1.5-Pro)as a reference point for patients with *** In this comparative study,two gastroenterology experts generated 15 IBD-related questions that reflected common patient *** questions were used to evaluate the performance of the three *** answers provided by each model were independently assessed by three IBD-related medical experts using a Likert scale focusing on accuracy,comprehensibility,and ***,three patients were invited to evaluate the comprehensibility of their ***,a readability assessment was *** Overall,each of the LLMs achieved satisfactory levels of accuracy,comprehensibility,and completeness when answering IBD-related questions,although their performance *** of the investigated models demonstrated strengths in providing basic disease information such as IBD definition as well as its common symptoms and diagnostic ***,when dealing with more complex medical advice,such as medication side effects,dietary adjustments,and complication risks,the quality of answers was inconsistent between the ***,Claude-3-Opus generated answers with better readability than the other two *** LLMs have the potential as educational tools for patients with IBD;however,there are discrepancies between the *** optimization and the development of specialized models are necessary to ensure the accuracy and safety of the information provided.

关键词： Inflammatory bowel disease Large language models Patient education Medical information accuracy Readability assessment

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Towards reliable object representation via sparse directional patches and spatial center cues

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Fundamental Research 2025年第1期5卷 354-359页

作者： Muwei Jian Hui Yu School of Computer Science and Technology Shandong University of Finance and EconomicsJinan 250014China School of Creative Technologies University of PortsmouthPortsmouth 200021UK

In the process of image understanding,the human visual system(HVS)performs multiscale analysis on various *** primarily focuses on marginally conspicuous image patches located within or around distinct objects rather than scanning the image pixels point by *** by the HVS mechanism,in this paper,we aimed to describe and exploit multiscale decomposition-based patch detection models for automatic visual feature representation and object localization in *** investigation into mimicking and modeling the HVS to capture conspicuous sparse patches and their spatial distribution clues makes a profound contribution to the automatic comprehension and characterization of images by *** study demonstrates that the sparse patch-based visual representation with spatial center cues is intrinsically tolerant to object positioning and understanding beyond object variations in spatial position,multiresolution,and chrominance,which has significant implications for many vision-based automatic object grabbing and perception applications,such as robotics,human‒machine interaction,and unmanned aerial vehicles(UAVs).

关键词： Multiscale analysis Image patches Visual perception Shearlet transform Object representation

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Distributed Observer for Full-Measured Nonlinear Systems Based on Knowledge of FMCF

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IEEE/CAA Journal of Automatica Sinica 2025年第1期12卷 69-85页

作者： Haotian Xu Shuai Liu Yueyang Li Ke Li the School of Control Science and Engineering Shandong University and also with Key Laboratory of Machine Intelligence and System Control Ministry of Education IEEE the School of Electrical Engineering University of Jinan

Driven by practical applications, the achievement of distributed observers for nonlinear systems has emerged as a crucial advancement in recent years. However, existing theoretical advancements face certain limitations: They either fail to address more complex nonlinear phenomena, rely on hard-to-verify assumptions, or encounter difficulties in solving system ***, this paper aims to address these challenges by investigating distributed observers for nonlinear systems through the full-measured canonical form(FMCF), which is inspired by full-measured system(FMS) theory. To begin with, this study addresses the fact that the FMCF can only be obtained through the observable canonical form(OCF) in existing FMS *** paper demonstrates that a class of nonlinear systems can directly obtain FMCF through state space equations, independent of OCF. Also, a general method for solving FMCF in such systems is provided. Furthermore, based on the FMCF, A distributed observer is developed for nonlinear systems under two scenarios: Lipschitz conditions and open-loop bounded *** paper establishes their asymptotic omniscience and demonstrates that the designed distributed observer in this study has fewer design parameters and is more convenient to construct than existing approaches. Finally, the effectiveness of the proposed methods is validated through simulation results on Van der Pol oscillators and microgrid systems.

关键词： Distributed observer full-actuated system full-measured system (FMS) nonlinear observer sensor networks

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Regulating reversibility of Li-SOCl_(2)batteries by elucidating intrinsic charging conversion strategy

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Science Bulletin 2025年第2期70卷 140-143页

作者： Guodong Chen Xin Liu Haoqi Hou Xiangyu Gao Lei Hu Shanmu Dong Guanglei Cui Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Shandong Energy Institute Qingdao 266101China Qingdao New Energy Shandong Laboratory Qingdao 266101China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Electric vehicles and portable devices have increased their demand for energy storage,resulting in the development of new high energy density batteries,including solid-state lithium-metal batteries,lithium-oxygen(Li-O_(2))batteries and lithium-sulfur(Li-S)batteries,which utilize high-capacity materials and will significantly break through the dilemma faced by the commercially available lithium-ion batteries[1–3].

关键词： lithium utilize batteries

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Phase changes and electromagnetic wave absorption performance of XZnC(X=Fe/Co/Cu)loaded on melamine sponge hollow carbon composites

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International Journal of Minerals,Metallurgy and Materials 2025年第3期32卷 566-577页

作者： Xiubo Xie Ruilin Liu Chen Chen Di Lan Zhelin Chen Wei Du Guanglei Wu School of Environmental and Material Engineering Yantai UniversityYantai 264005China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta Shandong University of AeronauticsBinzhou 256603China Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China

Non-stoichiometric carbides have been proven to be effective electromagnetic wave(EMW)absorbing *** this study,phase and morphology of XZnC(X=Fe/Co/Cu)loaded on a three dimensional(3D)network structure melamine sponge(MS)carbon composites were investigated through vacuum filtration followed by *** FeZnC/CoZnC/CuZnC with carbon nanotubes(CNTs)were uniformly dispersed on the surface of melamine sponge carbon skeleton and Co-containing sample exhibits the highest CNTs *** minimum reflection loss(RL_(min))of the CoZnC/MS composite(m_(composite):m_(paraffin)=1:1,m represents mass)reached-33.60 dB,and the effective absorption bandwidth(EAB)reached 9.60 *** outstanding electromagnetic wave absorption(EMWA)properties of the CoZnC/MS composite can be attributed to its unique hollow structure,which leads to multiple reflections and *** formed conductive network improves dielectric and conductive *** incorporation of Co enhances the magnetic loss capability and optimizes interfacial polarization and dipole *** simultaneously improving dielectric and magnetic losses,ex-cellent impedance matching performance is *** clarification of element replacement in XZnC/MS composites provides an effi-cient design perspective for high-performance non-stoichiometric carbide EMW absorbers.

关键词： electromagnetic wave absorption three dimensional network structure melamine sponge derived carbon non-stoichiometric carbide

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Molecular Structure Tailoring of Organic Spacers for High‑Performance Ruddlesden–Popper Perovskite Solar Cells

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Nano-Micro Letters 2025年第2期17卷 314-357页

作者： Pengyun Liu Xuejin Li Tonghui Cai Wei Xing Naitao Yang Hamidreza Arandiyan Zongping Shao Shaobin Wang Shaomin Liu School of Materials Science and Engineering State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum(East China)Qingdao 266580People’s Republic of China School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo 255049People’s Republic of China Centre for Applied Materials and Industrial Chemistry(CAMIC) School of ScienceRMIT UniversityMelbourneVic 3000Australia WA School of Mines:Minerals Energy and Chemical Engineering(WASM‑MECE)Curtin UniversityPerthWA 6102Australia School of Chemical Engineering The University of AdelaideAdelaideSA 5005Australia School of Engineering Great Bay UniversityDongguan 523000People’s Republic of China

Layer-structured Ruddlesden–Popper(RP)perovskites(RPPs)with decent stability have captured the imagination of the photovoltaic research community and bring hope for boosting the development of perovskite solar cell(PSC)***,two-dimensional(2D)or quasi-2D RP PSCs are encountered with some challenges of the large exciton binding energy,blocked charge transport and poor film quality,which restrict their photovoltaic ***,these issues can be readily resolved by rationally designing spacer cations of *** review mainly focuses on how to design the molecular structures of organic spacers and aims to endow RPPs with outstanding photovoltaic *** firstly elucidated the important roles of organic spacers in impacting crystallization kinetics,charge transporting ability and stability of *** we brought three aspects to attention for designing organic ***,we presented the specific molecular structure design strategies for organic spacers of RPPs aiming to improve photovoltaic performance of RP *** proposed strategies in this review will provide new avenues to develop novel organic spacers for RPPs and advance the development of RPP photovoltaic technology for future applications.

关键词： Ruddlesden-Popper perovskites Low-dimensional perovskite solar cells Organic spacers Molecular structure Design strategies

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No association between SARS-CoV-2 infection and embryo chromosomal abnormalities: a prospective cohort study

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Science China Life Sciences 2025年

作者： Tianxiang Ni Yang Liu Weiran Cui Siying Chen Hongchang Li Yueting Zhu Wenjie Jiang Qian Zhang Wei Zhou Zijiang Chen Yan Li Guangyong Zhang Junhao Yan Shandong Technology Innovation Center for Reproductive Health Shandong Provincial Clinical Research Center for Reproductive Health Shandong Key Laboratory of Reproductive Medicine Shandong Provincial Hospital Affiliated to Shandong First Medical University Research Unit of Gametogenesis and Health of ART-Offspring Chinese Academy of Medical Sciences (No.2021RU001) Department of General Surgery The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital State Key Laboratory of Reproductive Medicine and Offspring Health Center for Reproductive Medicine Institute of Women Children and Reproductive Health Shandong University National Research Center for Assisted Reproductive Technology and Reproductive Genetics Shandong University Key Laboratory of Reproductive Endocrinology (Shandong University) Ministry of Education

Dear Editor,Assisted Reproductive Technology (ART)refers to the use of medical aids to achieve pregnancy in infertile couples, including Artificial Insemination (AI) and In vitro Fertilization-Embryo Transfer (IVF), of which IVF has been a common option for infertility treatment. In early December 2022, the Chinese government issued a Circular on Further Optimizing the Prevention and Control of Epidemics. This shift marked a relaxation of the dynamic clearance policy.

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二维电子材料中的二阶拓扑绝缘体

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物理学进展 2025年第1期45卷 1-31页

作者：冯晓冉牛成旺黄柏标戴瑛山东大学物理学院晶体材料国家重点实验室济南 250100

高阶能带拓扑不仅丰富了我们对拓扑相的理解,还揭示了新奇的低维边界态,这在下一代器件应用中具有巨大潜力.二维材料独特的电子结构和可调控特性使其成为实现二阶拓扑绝缘体(SOTIs)的理想平台.本文概述了二维电子材料领域中 SOTIs 的研... 详细信息

高阶能带拓扑不仅丰富了我们对拓扑相的理解,还揭示了新奇的低维边界态,这在下一代器件应用中具有巨大潜力.二维材料独特的电子结构和可调控特性使其成为实现二阶拓扑绝缘体(SOTIs)的理想平台.本文概述了二维电子材料领域中 SOTIs 的研究进展,重点介绍了高阶拓扑特性的表征以及理论研究中提出的众多候选材料.这些研究不仅增强了我们对高阶拓扑态的理解,还丰富了实验中可行的候选材料.

关键词：二阶拓扑绝缘角态二维电子材料

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Multiple Tin Compounds Modified Carbon Fibers to Construct Heterogeneous Interfaces for Corrosion Prevention and Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第1期17卷 507-527页

作者： Zhiqiang Guo Di Lan Zirui Jia Zhenguo Gao Xuetao Shi Mukun He Hua Guo Guanglei Wu Pengfei Yin College of Science Sichuan Agricultural UniversityYa’an 625014People’s Republic of China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002People’s Republic of China Institute of Materials for Energy and Environment State Key Laboratory of Bio‑Fibers and Eco‑TextilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071People’s Republic of China Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China

Currently,the demand for electromagnetic wave(EMW)absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly ***-component interface engineering is considered an effective means to achieve high-efficiency EMW ***,interface modulation engineering has not been fully discussed and has great potential in the field of EMW *** this study,multi-component tin compound fiber composites based on carbon fiber(CF)substrate were prepared by electrospinning,hydrothermal synthesis,and high-temperature thermal *** utilizing the different properties of different substances,rich heterogeneous interfaces are *** effectively promotes charge transfer and enhances interfacial polarization and conduction *** prepared SnS/SnS_(2)/SnO_(2)/CF composites with abundant heterogeneous interfaces have and exhibit excellent EMW absorption properties at a loading of 50 wt%in epoxy *** minimum reflection loss(RL)is−46.74 dB and the maximum effective absorption bandwidth is 5.28 ***,SnS/SnS_(2)/SnO_(2)/CF epoxy composite coatings exhibited long-term corrosion resistance on Q235 steel ***,this study provides an effective strategy for the design of high-efficiency EMW absorbing materials in complex and harsh environments.

关键词： Electrostatic spinning Component regulation Heterogeneous interfaces Electromagnetic wave absorption Corrosion protection

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