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SSRN 2025年

作者： Ning, Jiayi Li, Yuan Cao, Penghui Li, Shanshan Chen, Yuejiao Zhou, Shuang Zhu, Huali Yang, Juan Li, Chuanchang Liu, Xiongjun Lu, Zhaoping Key Laboratory of Renewable Energy Electric-Technology of Hunan Province School of Energy and Power Engineering Changsha University of Science and Technology Changsha410114 China State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing China State Key Laboratory of Disaster Prevention & Reduction for Power Grid Changsha University of Science & Technology China Central South University Hunan Changsha410083 China Beijing Advanced Innovation Center for Materials Genome Engineering China

The industrialization of aqueous Zn-ion batteries faces critical challenges from Zn powder anodes, particularly dendrite proliferation and parasitic reactions exacerbated by incompatible interfaces in conventional electrolyte systems. While electrolyte engineering can mitigate these issues, fragile inorganic/organic protective layers typically demonstrate poor substrate adhesion and mechanical stability during high-rate cycling. Addressing this fundamental limitation, we propose a biomimetic "dragon-scale-wall" interface through sodium tripolyphosphate (STPP)-mediated electrolyte regulation. advanced spectroscopic characterization reveals that STPP coordinates Zn2+ to reconstruct the solvation sheath, enabling in situ formation of a chemically-grafted phosphate-rich layer that conformally encapsulates flake Zn powder. This dragon-scale architecture exhibits unprecedented electrode compatibility through optimized charge redistribution and ion-transport channels, achieving remarkable durability with 900 h stable cycling at 8.8 mA cm-2 (0.88 mAh cm-2) in symmetric cells. Additionally, full-battery *** exhibit a discharge capacity of 60.8 mAh g-1 after 4000 cycles at the current density of 10 A g-1, demonstrating the excellent rate capability among phosphate-modified Zn batteries. The interfacial chemistry paradigm established here provides a scalable pathway toward practical high-power zinc metal batteries through molecular-level compatibility engineering. © 2025, The Authors. All rights reserved.

关键词： Electrolytes

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Transmission-reflection phase modulation for antenna gain enhancement and RCS reduction based on polarization-selective metamaterials

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Optics Express 2025年第10期33卷 21761-21775页

作者： Xin Yao Haiyan Chen Fang Chen Tingyan Pan Zhichao Xue Fengxia Li Difei Liang Jianliang Xie National Engineering Research Center of Electromagnetic Radiation Control Materials Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of Education State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China Chengdu 611731 China School of Physics Xidian University Xi’an 710071 China

The manipulation of electromagnetic waves using metamaterials (MMs) has been extensively studied, yet research on simultaneously controlling both radiated and scattered electromagnetic waves within the same wideband remains limited. Building on previous work, this paper introduces transmission and reflection phase units based on polarization-selective metamaterials to regulate the radiation performance of a single-polarized source and the platform's scattering characteristics in a broadband range. The polarization-selective metamaterial consists of polarization-conversion transmission structures and polarization-selective reflection structures. Through phase design of these components, polarization-selective wavefront converter and chessboard metasurfaces were developed and fabricated. When integrated with the antenna platform, simulations and experimental results demonstrate an average radiation gain improvement of 7.3 dBi in the 8-12 GHz frequency range. Simultaneously, the monostatic radar cross section (RCS) reduction exceeds 10 dB on average within the same frequency range, and the bistatic RCS reduction averages over 10 dB for incident angles between 0° and 50°. In summary, this study presents an approach for the simultaneous control of both radiation and scattering performance over a broad frequency range.

关键词： Diffuse scattering electromagnetic scattering Information processing Material properties Phase compensation Phase modulation

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Machine learning strategies for small sample size in materials science

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Science China Materials 2025年第2期68卷 387-405页

作者： Qiuling Tao JinXin Yu Xiangyu Mu Xue Jia Rongpei Shi Zhifu Yao Cuiping Wang Haijun Zhang Xingjun Liu School of Materials Science and Engineering and Institute of Materials Genome&Big DataHarbin Institute of TechnologyShenzhenShenzhen 518055China School of Computer Science&Technology Harbin Institute of TechnologyShenzhenShenzhen 518055China Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai 980-8577Japan Department of Materials Science and Engineering College of MaterialsXiamen UniversityXiamen 361005China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyShenzhenShenzhen 518055China

Machine learning (ML) has been widely used todesign and develop new materials owing to its low computational cost and powerful predictive capabilities. In recentyears, the shortcomings of ML in materials science have gradually emerged, with a primary concern being the scarcity ofdata. It is challenging to build reliable and accurate ML modelsusing limited data. Moreover, the small sample size problemwill remain long-standing in materials science because of theslow accumulation of material data. Therefore, it is importantto review and categorize strategies for small-sample learningfor the development of ML in materials science. This reviewsystematically sorts the research progress of small-samplelearning strategies in materials science, including ensemblelearning, unsupervised learning, active learning, and transferlearning. The directions for future research are proposed, including few-shot learning, and virtual sample *** importantly, we emphasize the significance of embedding material domain knowledge into ML and elaborate on thebasic idea for implementing this strategy.

关键词： material design machine learning small sample size few-shot learning material domain knowledge

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Large-scale high uniform optoelectronic synapses array for artificial visual neural network

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Microsystems & Nanoengineering 2025年第1期11卷 247-256页

作者： Fanqing Zhang Chunyang Li Zhicheng Chen Haiqiu Tan Zhongyi Li Chengzhai Lv Shuai Xiao Lining Wu Jing Zhao State Key Laboratory of Explosion Science and Safety Protection Beijing Institute of TechnologyMinistry of Education100081 BeijingChina School of Mechatronical Engineering Beijing Institute of Technology100081 BeijingChina Beijing Advanced Innovation Center for Intelligent Robots and Systems Beijing Institute of Technology100081 BeijingChina Laser Micro/Nano Fabrication Laboratory School of Mechanical EngineeringBeijing Institute of Technology100081 BeijingChina School of Mechanical Engineering Beijing Institute of Technology100081 BeijingChina

Recently,the biologically inspired intelligent artificial visual neural system has aroused enormous ***,there are still significant obstacles in pursuing large-scale parallel and efficient visual memory and *** this study,we demonstrate a 28×28 synaptic devices array for the artificial visual neuromorphic system,within the size of 0.7×0.7 cm 2,which integrates sensing,memory,and processing *** highly uniform floating-gate synaptic transistors array were constructed by the wafer-scale grown monolayer molybdenum disulfide with Au nanoparticles(NPs)acting as the electrons capture *** synaptic plasticity behaviors have been achieved owing to the switchable electronic storage *** excellent optical/electrical coordination capabilities were implemented by paralleled processing both the optical and electrical signals the synaptic array of 784 devices,enabling to realize the badges and letters writing and erasing ***,the established artificial visual convolutional neural network(CNN)through optical/electrical signal modulation can reach the high digit recognition accuracy of 96.5%.Therefore,our results provide a feasible route for future large-scale integrated artificial visual neuromorphic system.

关键词： optoelectronic synapses monolayer molybdenum disulfide artificial visual neural system convolutional neural network artificial visual neuromorphic systemwithin artificial visual neural network floating gate transistors synaptic plasticity

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A method of optimising the filter bandwidth of a spatially modulated full-polarisation imaging system

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Optik 2025年 330卷

作者： Dong, Zhixu Yang, Shu Sun, Mengnan Si, Jiashun Yi, Hao School of Mechanical Engineering Shenyang University of Technology Shenyang110870 China School of Mechanical Engineering Beijing Institute of Technology Beijing100081 China State Key Laboratory of Mechanical Transmission for Advanced Equipment Chongqing University Chongqing400044 China

In this study, a method of calculating the optimal filter bandwidth based on the watermark fringes of simulation interference was proposed to maintain the optimal performance of a spatially modulated full-polarisation imaging system in different target scenes, offering some theoretical guidance for the type selection of the imaging lens for the system. The two-dimensional sine function of the watermark fringes of simulation interference was superimposed on the intensity image, and a full-polarisation image was obtained by demodulating the simulation interferogram using the fast Fourier transform and the frequency-domain low-pass-filtering algorithm. Then, the polarisation image with the highest structural similarity to the intensity image was solved, and a method of calculating the optimal filter bandwidth based on the improved elitist clonal selection algorithm (ECSA) was presented. Next, the optimal focal length of the imaging lens was calculated in combination with the image resolutions, incident light wavelengths, and Savart polariser single-beam offsets selected in different target scenes, to complete the theoretical type selection. The experimental results showed that the spatially modulated full-polarisation imaging system constructed based on the optimal filter bandwidth had a good performance;and that, compared with empirical type selection, the proposed type selection based on the optimal filter bandwidth increased the spectral inversion area by 4.2 times and the image structural similarity by 71 %, significantly improving the polarisation imaging quality of the system. © 2025 Elsevier GmbH

关键词： Low pass filters

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Soot emission reduction via magnetic field coupling with carbon dioxide in diffusion flames

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Energy 2025年 328卷

作者： Yang, Kaixuan Ying, Yaoyao Qi, Dandan Yu, Runtian Chen, Chen Chen, Mingxiao Yan, Weijie Yan, Jianhua Liu, Dong MIIT Key Laboratory of Thermal Control of Electronic Equipment School of Energy and Power Engineering Nanjing University of Science and Technology Nanjing210094 China Advanced Combustion Laboratory School of Energy and Power Engineering Nanjing University of Science and Technology Nanjing210094 China State Key Laboratory of Clean Energy Utilization College of Energy Engineering Zhejiang University Hangzhou310027 China

Considering that soot particles emitted from industrial combustion equipment were substantial contributors to global warming and human health issue, the reduction of soot emission via magnetic field coupled with carbon dioxide (CO2) was explored in this study. As high as an 85 % reduction in soot mass emissions from exhaust gas of inverse diffusion flames could be achieved by introducing a 2T magnetic field and substituting nitrogen (N2) with CO2 as the dilution gas, indicating that magnetic fields could effectively synergize with CO2 to reduce soot emission. Furthermore, to gain insight into the principles of soot reduction, the soot nanostructure and graphitization degree was investigated using the high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. It was discovered that the nanostructure of soot particles became more disordered and exhibited a lower graphitic degree in the presence of magnetic field and CO2, leading to higher oxidation activity. This finding suggested that magnetic fields and CO2 addition inhibited soot formation primarily through suppressing the polycyclic aromatic hydrocarbon (PAHs) nucleation and soot surface growth. Given its excellent performance in reducing soot emissions, magnetic field synergistic CO2 was a promising strategy for developing cleaner combustion devices. © 2025 Elsevier Ltd

关键词： Magnetic levitation

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Effect of pre-deoxygenation treatment on the properties of BNi-7 brazing filler metals and its brazed joints

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Materials Science and engineering: A 2025年 939卷

作者： Lili, Cao Cunjiabei, Feng Guangya, Li Yuanyuan, Zheng Zhuo, Liu Bangweng, Zhu Weimin, Long School of Mechanical & Energy Engineering Zhejiang University of Science & Technology Hangzhou310023 China State Key Laboratory of Advanced Brazing Filler Metals & Technology Zhengzhou Research Institute of Mechanical Engineering Co.LTD Zhengzhou450001 China

The oxidation that occurs during the production and storage of brazing filler metals serves as the primary cause of metallurgical defects in the brazed joints. To investigate the role of oxygen concentration in the coupling relationship between the microstructure and mechanical properties of both the filler metal and the brazed joint, this study implemented a TiH2 precursor pre-deoxygenation process on gas-atomized BNi-7 brazing alloy. The oxygen concentration exhibited a characteristic parabolic variation with increasing pre-deoxygenation temperature, reaching a minimum value of 0.060 wt % at 500 °C and 23.08 % reduction compared to the original powder. At the optimized oxygen content of 0.060 wt %, the liquidus temperature of the brazing alloy significantly decreased to 890 °C, with a narrowed melting range of 6.2 °C. The microstructure of the brazed joints displayed typical eutectic morphology characteristics, which consist of a continuously distributed Cr/Fe-enriched Ni solid solution matrix;a Cr-segregated Ni3P-Ni(Cr) intermetallic compound in the central region and discretely distributed Ni(Cr, Fe)-P metastable phases. Under optimal oxygen conditions (0.06 wt %), the maximum shear strength reached 57 MPa, reflecting a 15 % strength improvement over the baseline group. The results indicate that oxygen reduction effectively suppresses heterogeneous nucleation processes and enhances metallurgical homogenization. © 2025 Elsevier B.V.

关键词： Brazing filler metals

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Preparation and properties of zirconia-toughened alumina doped with B2O3-Al2O3-SiO2-ZrO2 glass

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Ceramics International 2025年

作者： Yan, Junwei Li, Enzhu Zhong, Chaowei Qin, Tianying Wang, Mingxia National Engineering Research Center of Electromagnetic Radiation Control Materials University of Electronic Science and Technology of China Chengdu610054 China State Key Laboratory of Electronic Thin Films and Integrated Devices School of Electronic Science and Engineering University of Electronic Science and Technology of China Chengdu610054 China

Zirconia-toughened alumina (ZTA) composites with 0 wt% to 6 wt% of B2O3-Al2O3-SiO2-ZrO2 (BASZ) glass were synthesized. This study systematically investigates the impact of BASZ glass content on the microstructural characteristics, mechanical properties, and dielectric properties of the ZTA composites. The results reveal that the judicious incorporation of BASZ glass effectively mitigates porosity and voids within the ZTA matrix, resulting in refined grain sizes and subsequent enhancements in both mechanical and dielectric performances. Notably, the ZTA composite fortified with 0.9 wt% BASZ glass demonstrates superior overall properties, featuring a bulk density of 4.2967 g/cm3, a relative density of 98.4 %, a flexural strength of 596.6 ± 23.6 MPa, a dielectric constant of 15.9, and a dielectric loss (tanδ) of 0.00028, highlighting its promising potential for advanced applications. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Bending strength

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Inhibition of the cGAS‑STING Pathway Reduces Cisplatin‑Induced Inner Ear Hair Cell Damage

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Neuroscience Bulletin 2025年第3期41卷 359-373页

作者： Ying Sun Shengyu Zou Xiaoxiang Xu Shan Xu Haiying Sun Mingliang Tang Weijia Kong Xiong Chen Zuhong He Department of Otorhinolaryngology-Head and Neck Surgery Zhongnan Hospital of Wuhan UniversityWuhan 430071China State Key Laboratory of Digital Medical Engineering Department of Otolaryngology Head and Neck SurgeryZhongda HospitalSchool of Life Sciences and TechnologyAdvanced Institute for Life and HealthJiangsu Province High-Tech Key Laboratory for Bio-Medical ResearchSoutheast UniversityNanjing 210096China Department of Otolaryngology The First Hospital of China Medical UniversityShenyang 110001China Department of Otorhinolaryngology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital Suzhou Medical College of Soochow UniversitySoochow UniversitySuzhou 215000China

Although cisplatin is a widely used chemotherapeutic agent,it is severely toxic and causes irreversible hearing loss,restricting its application in clinical *** study aimed to determine the molecular mechanism underlying cisplatin-induced ***,we established in vitro and in vivo ototoxicity models of cisplatininduced hair cell loss,and our results showed that reducing STING levels decreased inflammatory factor expression and hair cell *** addition,we found that cisplatin-induced mitochondrial dysfunction was accompanied by cytosolic DNA,which may act as a critical linker between the cyclic GMP-AMP synthesis−stimulator of interferon genes(cGASSTING)pathway and the pathogenesis of cisplatin-induced hearing loss.H-151,a specific inhibitor of STING,reduced hair cell damage and ameliorated the hearing loss caused by cisplatin in *** study underscores the role of cGASSTING in cisplatin ototoxicity and presents H-151 as a promising therapeutic for hearing loss.

关键词： Ototoxicity Hearing loss cGAS-STING Hair cell Mitochondrial dysfunction

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Influence of colloidal silica properties on chemical mechanical polishing of zirconia ceramics

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Ceramics International 2025年

作者： Lin, Wenkun Qi, Yongchi Zhang, Xueju Gu, Yunyun Wang, Yue Qian, Hongwei Luo, Hui Chen, Jiapeng Research Center for Advanced Micro-/Nano- Fabrication Materials School of Chemistry and Chemical Engineering Shanghai University of Engineering Science Shanghai201620 China School of Electro-Mechanical Engineering Zhongyuan Institute of Science and Technology Xuchang461000 China Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology National Key Laboratory of Science and Technology on Helicopter Transmission College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and Astronautics Nanjing210016 China State Key Laboratory of Silicon and Advanced Semiconductor Materials Zhejiang University Hangzhou310027 China State Key Laboratory for High Performance Tools Zhengzhou Research Institute for Abrasives & Grinding Co. Ltd Henan 450001 China

Zirconia ceramics (ZrO2) have a wide range of applications in many fields due to their many advantages such as high hardness, corrosion resistance, high dielectric constant, no signal shielding, and excellent biocompatibility. Currently, colloidal silica (SiO2) is widely employed in the chemical mechanical polishing (CMP) of ZrO2 wafers in industrial applications. While extensive research has been conducted on the effects of colloidal silica's mechanical properties on ZrO2 polishing, relatively little attention has been given to the adsorption properties of the SiO2 surface. Furthermore, the influence of the acidity (Si-OH groups) and surface adsorption characteristics of ZrO2 on the CMP removal mechanism remains underexplored. Therefore, in this paper, three alkaline molecular probes are introduced to investigate the acidity and surface adsorption properties of colloidal silica, and the interfacial reaction and material removal mechanism of colloidal silica on ZrO2 polishing are characterized and analyzed by contact angle test, X-ray photoelectron spectroscopy (XPS) and low-field nuclear magnetic resonance (LF-NMR). The results show that there are two reaction mechanisms for chemical mechanical polishing material removal rate (MRR) of ZrO2. Under acidic polishing conditions, there is no significant correlation between MRR and the acidity of Si-OH groups on the surface of the colloidal silica, and MRR is closely related to the erosion of Zr-OH on the surface of ZrO2 by Si-OH groups, which undergoes a dehydration condensation reaction. However, under alkaline polishing conditions, deprotonated Si-O-groups play a dominant role in the polishing activity and are accompanied by the generation and removal of reaction products (zirconium silicates). The optimal polishing efficiency in an acidic polishing environment, particularly when zirconia reaches its isoelectric point at pH = 6, may be attributed to the enhanced chemical reactivity between the ZrO2 and SiO2 surfaces a

关键词： Corrosion resistance

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