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Photonics Research 2024年第7期12卷 1395-1409页

作者： XiMiNG Li rui XU XiAOFENG SUN YUAN zHAO zHAO yang GUOHONG DU College of Electronic Engineering Chengdu University of Information TechnologyChengdu 610225China

Programmable metasurfaces have received a great deal of attention due to their ability to dynamically manipulate electromagnetic(EM) waves. Despite the rapid growth, most of the existing metasurfaces require manual control to switch among different functionalities, which poses severe limitations on practical applications. Here, we put forth an intelligent metasurface that has self-adaptive EM functionality switching in broadband without human participation. it is equipped with polarization discrimination antennas(PDAs) and feedback components to automatically adjust functionalities for the different incident polarization information.

关键词： equipped adjust polarization

A Two-Layer Encoding Learning Swarm Optimizer Based on Frequent itemsets for Sparse Large-Scale Multi-Objective Optimization

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iEEE/CAA Journal of Automatica Sinica 2024年第6期11卷 1342-1357页

作者： Sheng Qi rui Wang Tao zhang Xu yang ruiqing Sun Ling Wang College of Systems Engineering National University of Defense TechnologyChangsha 410073China Xiangjiang Laboratory Changsha 410205China College of Computer National University of Defense TechnologyChangsha 410073China Department of Automation Tsinghua UniversityBeijing 100084China iEEE

Traditional large-scale multi-objective optimization algorithms(LSMOEAs)encounter difficulties when dealing with sparse large-scale multi-objective optimization problems(SLM-OPs)where most decision variables are *** a result,many algorithms use a two-layer encoding approach to optimize binary variable Mask and real variable Dec ***,existing optimizers often focus on locating non-zero variable posi-tions to optimize the binary variables ***,approxi-mating the sparse distribution of real Pareto optimal solutions does not necessarily mean that the objective function is *** data mining,it is common to mine frequent itemsets appear-ing together in a dataset to reveal the correlation between *** by this,we propose a novel two-layer encoding learning swarm optimizer based on frequent itemsets(TELSO)to address these *** mined the frequent terms of multiple particles with better target values to find mask combinations that can obtain better objective values for fast ***-mental results on five real-world problems and eight benchmark sets demonstrate that TELSO outperforms existing state-of-the-art sparse large-scale multi-objective evolutionary algorithms(SLMOEAs)in terms of performance and convergence speed.

关键词： Evolutionary algorithms learning swarm optimiza-tion sparse large-scale optimization sparse large-scale multi-objec-tive problems two-layer encoding.

Printable,flexible ceramic fiber paper based on electrospinning

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Rare Metals 2024年第6期43卷 2739-2746页

作者： Yong-Shuai Xie Yuan Cheng yang Lyu rui Li Jie-Cai Han National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150001China State Key Laboratory of intelligent Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhan 430074China

Based on the fact that it is challenging for the polymer flexible circuit substrates to meet the requirements of serving in high-temperature environments,this work proposed the idea of using printable ceramic fiber paper as a high-temperature flexible circuit substrate.A ceramic fiber paper with all ceramic components had been developed via electrospinning,solving the problems of low strength and severe strength drop at high temperatures of traditional ceramic fiber *** tensile strength of the prepared ceramic fiber paper is 2.63 MPa,and the reliable service temperature is 1200℃.its bulk density is about 1.5 times that of traditional ceramic fiber *** can be printed with patterns by commercial inkjet printers like ordinary printing paper and has excellent *** feasibility of ceramic fiber paper as a flexible circuit substrate was verified by constructing a simple *** the fiber paper is significantly bent,the circuit still forms a complete path,which proves that it has a strong application potential for high-temperature flexible circuit substrate and is expected to promote the development of flexible electronic devices serving at extreme high-temperature environments.

关键词： Ceramic fiber paper High temperature inkjet printing Flexible electronic

On the Performances of Estimating Stellar Atmospheric Parameters from CSST Broad-band Photometry

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Research in Astronomy and Astrophysics 2024年第4期24卷 161-173页

作者： rui-Feng Shi yang Huang Xin-Yi Li Hua-Wei zhang School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China South-Western institute for Astronomy Research Yunnan UniversityKunming 650500China CAS Key Lab of Optical Astronomy Key Laboratory of Space Astronomy and TechnologyNational Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China College of Physics and Electronic Engineering Qilu Normal UniversityJinan 250200China Department of Astronomy School of PhysicsPeking UniversityBeijing 100871China Kavli institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China

Deriving atmospheric parameters of a large sample of stars is of vital importance to understand the formation and evolution of the Milky *** surveys,especially those with near-ultraviolet filters,can offer accurate measurements of stellar parameters,with the precision comparable to that from low/medium resolution *** this study,we explore the capability of measuring stellar atmospheric parameters from Chinese Space Station Telescope(CSST)broad-band photometry(particularly in the near-ultraviolet bands),based on synthetic colors derived from model *** find that colors from the optical and near-ultraviolet filter systems adopted by CSST show significant sensitivities to the stellar atmospheric parameters,especially the *** to our mock data tests,the precision of the photometric metallicity is quite high,with typical values of0.17 and 0.20 dex for dwarf and giant stars,*** precision of the effective temperature estimated from broad-band colors are within 50 K.

关键词： methods:data analysis stars:abundances surveys

Structural engineering of Sb-based electrode materials to enhance advanced sodium-ion batteries

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Rare Metals 2024年第10期43卷 4777-4806页

作者： zheng yang Qiao-Ling Kang rui-Wang Li-Jing Yan Xian-He Meng Ting-Li Ma College of Materials and Chemistry Jiliang University

Antimony （Sb） is recognized as a potential electrode material for sodium-ion batteries （SiBs） due to its huge reserves,affordability,and high theoretical capacity(660 mAh·g-1).However,Sb-based materials experience significant volume expansion during cycling,leading to comminution of the active substance and limiting their practical use in ***,the volume expansion issue of Sb-based materials during charging/discharging must be solved to create high-performance *** paper presents a detailed review of structural engineering of Sb-based electrode materials,focusing on the performance effects of different kinds of structures on advanced performance ***,the future development and the challenges of Sb-based materials are *** paper can provide specific perspectives on the structure construction and optimization of Sb-based anode materials so as to promote the rapid development and practical applications of SiBs.

关键词： Sb-based electrode Sodium-ion batteries Structural engineering

Strong and tough chitin hydrogel constructed by dehydration and rehydration strategy

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Nano Research 2024年第9期17卷 8192-8199页

作者： rui-rui Liu Li-Bo Mao Shu-Hong Yu Division of Nanomaterials and Chemistry Hefei National Research Center for Physical Sciences at the MicroscaleDepartment of ChemistryInstitute of Biomimetic Materials and ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsUniversity of Science and Technology of ChinaHefei 230026China institute of innovative Materials Department of Materials Science and EngineeringDepartment of ChemistrySouthern University of Science and TechnologyShenzhen 518055China

As a renewable,biocompatible,biodegradable soft material,chitin hydrogels have better advantages in stability,antibacterial activity,antifouling,cost,immunogenicity,and so on than most polymer ***,compared with other widely used polymer hydrogels with high strength and toughness,the practical applications of chitin-based hydrogels have been limited by their weak mechanical properties,such as cartilage repair and meniscus ***,we present the design and fabrication of chitin hydrogels with excellent mechanical strength and toughness by a dehydration and rehydration *** sequential dehydration and rehydration processes,the crystalline domains in the chitin hydrogels can be properly *** optimized crystallinity,the elastic modulus of the chitin hydrogels exceeds all previously reported values,and the fracture toughness is even comparable to some synthetic polymer hydrogels,while maintaining a high-water-content of about 80 wt.%.At the same water content,the mechanical properties of the chitin hydrogels are positively correlated with the hydrogel crystallinity,which proves that the change of mechanical properties of hydrogels is not simply dependent on weight *** hydrogels can be further strengthened by incorporating other biopolymers that are intrinsically weak,which makes the hydrogels promising for applications in fields such as cartilage repair and meniscus ***,the hydrogels enable loading and release of water-soluble and poorly water-soluble *** highly extendable strengthening and toughening strategy of chitin and chitin-based biopolymer hydrogels paves the way for their widely applications.

关键词： chitin hydrogel crystallinity rehydration chemical transformation strong and tough

High-Efficiency Dynamic Terahertz Deflector Utilizing a Mechanically Tunable Metasurface

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Research 2024年第3期2023卷 585-594页

作者： zhenci Sun Chao Liang Chen Chen Xiayu Wang Enze zhou Xiaomeng Bian Yuanmu yang rui You Xiaoguang zhao Jiahao zhao zheng You Department of Precision instrument Tsinghua UniversityBeijing 100084China State Key Laboratory of Precision Measurement Technology and instruments Tsinghua UniversityBeijing 100084China Beijing Advanced innovation Center for integrated Circuits Beijing 100084China School of instrument Science and Opto-Electronic Engineering Beijing Information Science and Technology UniversityBeijing 100016China.

Terahertz (THz) wave manipulation, especially the beam deflection, plays an essential role in various applications, such as next-generation communication, space exploration, and high-resolution imaging. Current THz optical components and devices are hampered by their large bulk sizes and passive responses, limiting the development of high-performance, miniaturized THz microsystems. Tunable metasurfaces offer a powerful dynamic optical platform for controlling the propagation of electromagnetic waves. in this article, we presented a mechanically tunable metasurface (MTM), which can achieve terahertz beam deflection and vary the intensity of the anomalous reflected terahertz wave by changing the air gap between the metallic resonator (MR) array with phase discontinuities and Au ground plane. The absence of lossy spacer materials substantially enhances deflection efficiency. The device was fabricated by a combination of the surface and bulk-micromachining processes. The THz beam steering capability was characterized using terahertz time domain spectroscopy. When the air gap is 50 μm, the maximum deflection coefficient reaches 0.60 at 0.61 THz with a deflection angle of ~44.5°, consistent with theoretical predictions. We further established an electrically tunable miniaturized THz device for dynamic beam steering by introducing a micro voice coil motor to control the air gap continuously. it is shown that our designed MTM demonstrates a high modulation depth of deflection coefficient (~ 62.5%) in the target steered angle at the operating frequency. Our results showcase the potential of the proposed MTM as a platform for high-efficiency THz beam manipulation.

关键词： tunable Efficiency resonator

identi?cation and Analysis of the intermediates from Photodegradation of 3,3′-diamino-4,4′-azoxyfurazan (DAAF)by SERS and HPLC–MS/MS

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Journal of Analysis and Testing 2024年第3期8卷 351-360页

作者： Qi Wu zhenqi zhang Wenxu zheng Juan Li Nan Ma rui Li Bo yang Weimiao Wang Xiaodong Li Meikun Fan Faculty of Geosciences and Environmental Engineering Southwest Jiaotong University institute of Chemical Materials China Academy of Engineering Physics College of Materials and Energy South China Agricultural University Southwest University of Science and Technology

Understanding the structural changes and degradation mechanisms of organic pollutants is critical in environmental *** this work, a xenon lamp was used as an analog light source to simulate the eff ect of sunlight on 3,3′-diamino-4,4′-azoxyfurazan (DAAF) in aqueous solution. Combining high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC–MS/MS), surface-enhanced Raman spectroscopy (SERS) with density functional theory (DFT), the degradation intermediates and mechanisms of DAAF were investigated. The sequential breakdown of the–NH 2and–O–N=bonds, followed by the removal of atomic O from–N=N(O)–, was emphasized and investigated using two-dimensional correlation spectroscopy (2D-COS) and SERS spectra. Three intermediates with mass-to-charge ratios (m/z) 181, 251 and180 were identifi ed and characterized by integrating experimental SERS data with DFT-calculated Raman spectra based on structures hypothesized from MS spectra. The fi ndings from HPLC–MS and SERS not only corroborate each other but also provide a foundation for a detailed examination of the DAAF degradation process.

关键词： DAAF High-performance liquid chromatography coupled with tandem mass spectrometry (HPLC–MS/MS) Photodegradation products Reaction pathways Surface-enhanced Raman spectroscopy (SERS)

Glycogen metabolism-mediated intercellular communication in the tumor microenvironment influences liver cancer prognosis

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Oncology Research 2024年第3期32卷 563-576页

作者： yang zHANG NANNAN QiN XiJUN WANG rui LiANG QUAN LiU RUOYi GENG TiANXiAO JiANG YUNFEi LiU JiNWEi Li Graduate School Kunming Medical UniversityKunming650000China Depatment of Vascular Surgery Fuwai Yunnan Cardiovascular HospitalAfliated Cardiovascular Hospital of Kunming Medical UniversityKunming650000China Department of Neurosurgery West China HospitalSichuan UniversityChengdu610000China Department of Neurosurgery The Fourth Afiliated Hospital of Guangxi Medical UniversityLiuzhou545000China Depatment of Gynecology Oncology The Fourth Afliated Hospital of Guangxi Medical UniversityLiuzhou545000China School of Basic Medical Sciences Xianning Medical CollegeHubei University of Science and TechnologyXianning437100China College of Bioengineering Chongqing UniversityChongqing400030China Department of General Visceraland Transplant SurgeryLudwig Maximilians University MunichMunich81377Germany

Glycogen metabolism plays a key role in the development of hepatoellular carcinoma(HCC),but the function of glycogen metabolism genes in the tumor microenvironment(TME)is still to be *** cell RNA-seq data were obtained from ten HCC tumor samples totaling 64,545 cells and 65 glycogen metabolism genes were analyzed bya nonnegative matrix factorization(NMF).The prognosis and immune response of new glycogen TME cell dusters were predicted by using HCC and immunotherapy cohorts from public *** single cell analysis was divided into fibroblasts,NT T cells,macrophages,endothelial clls,and B cells,which were separately divided into new cell clusters by glycogen metabolism gene *** temporal trajectory analysis demonstrated the temporal differentiation trajectory of different glycogen subtype cell *** communication analysis revealed extensive interactions between endothelial cells with glycogen metabolizing TME *** subtypes and diferent glycogen subtype cell *** analysis of transcription factors upstream of TME cell clusters with different glycogen *** addition,TME cell dusters of glycogen metabolism were found to be enriched in expression in CAF subtypes,CD8 depleted,M1,and M2 *** seq analysis showed the prognostic signifcance of glycogen *** TME cell dusters in HCC,while a significant immune response was found in the immunotherapy cohort in patients treated with immune checkpoint blockade(iCB),especially for CAFs,T cells,and macrophages in summary,our study reveals for the first time that glycogen metabolism mediates intercellular communication in the hepatocellular carcinoma microenvironment while elucidating the anti-tumor mechanisms and immune prognostic responses of different subtypes of cell dusters.

关键词： Glycogen metabolism Metabolic map Single cell Tumor microenvironment Liver cancer Prognosis immunotherapy

Coupling metal-organic frameworks and wood-based carbon for water remediation

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Nano Research 2024年第6期17卷 5661-5669页

作者： Akhter zia Manish Neupane Aidan McGlone rui He ruikun Xin Yifeng Liu Qiangu Yan Jinwu Wang Ling Li z.iyong Cai Pei Dong Yingchao yang Department of Mechanical Engineering University of MaineOronoME 04469USA Department of Mechanical and Aerospace Engineering University of MissouriColumbiaMO 65211USA Department of Mechanical Engineering George Mason UniversityFairfaxVA 22030USA Department of Civil and Environmental Engineering Rice UniversityHoustonTX 77005USA Department of Materials Science and NanoEngineering Rice UniversityHoustonTX 77005USA Forest Products Laboratory USDAMadisonWI 53726USA School of Forestry Resources University of MaineOronoME 04469USA

Fresh and clean water is highly demanded throughout the *** effectively address the need,nanomaterials enabled nanotechnology has been explored as a means of more efficient,reliable,and environmentally friendly approach towards water treatment *** concern in adopting nanomaterials is how to retrieve them from water body to avoid secondary *** this work,the earth abundant and sustainable wood,e.g.,basswood,was selected and carbonized into porous carbon as host skeleton,and metal-organic frameworks(MOFs),e.g.,MOF-199 with extremely high surface area,were grown throughout all channels in the porous basswood *** the traditional organic pollutant,methyl orange(MO),the combination of MOFs and basswood carbon(MOFs@carbon)demonstrates a remarkable adsorption capacity,which is 243%and 454%higher than basswood carbon and MOF-199,*** an outstanding adsorption performance originates from that the positively charged carbon pulls MO molecules close to carbon surface,leading to a high MO molecule concentration,and then the concentration gradient drives the MO molecules to be stored inside MOFs,functioning like *** findings highlight the potential application of coupled MOFs and biomass carbon in addressing water remediation.

关键词： metal-organic framework(MOF)-199 basswood carbon MOFs@carbon methyl orange