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Triple-phase interfaces of graphene-like carbon clusters on antimony trisulfide nanowires enable high-loading and long-lasting liquid Li_(2)S_(6)-based lithium-sulfur batteries 被引量:1
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作者 Chenyang Zha Donghai Wu +1 位作者 Xiuquan Gu Houyang Chen 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2021年第8期599-607,I0013,共10页
High performance of lithium-sulfur batteries have been dragged down by their shuttling behavior which is complicated multiphase transition-based 16-electron redox reactions of the S8/Li2 S.In this article,the triple-p... High performance of lithium-sulfur batteries have been dragged down by their shuttling behavior which is complicated multiphase transition-based 16-electron redox reactions of the S8/Li2 S.In this article,the triple-phase interfaces of graphene-like carbon clusters on antimony trisulfide(C-Sb_(2)S_(3))nanowires are tailored to design a multifunctional polysulfide host which can inhibit migration of polysulfides and accelerate conversion kinetics of redox electrochemical reactions.Benefiting from the triple-interface design of polysulfides/Sb_(2)S_(3)/carbon clusters,the C-Sb_(2)S_(3) electrode not only anchors polysulfide migration by the synergistic effect of Sb,S,and C atoms as interfacial active sites,but also the graphene-like carbon clusters shorten the diffusion paths to further favor redox electron/ion transport through the liquid(electrolyte/polysulfide)and solid(Li2 S/S8,carbon clusters,and Sb_(2)S_(3))-based triple-phases.Therefore,these Li_(2)S_(6)-based C-Sb_(2)S_(3) cells possess high sulfur loading,excellent cycling stability,impressive specific capacity,and great rate capability.This work of interfacial engineering reveals insight for powering reaction kinetics in the complicated multistep catalysis reaction with multiphase evolution-based chargetransfer/non-transfer processes. 展开更多
关键词 triple-phase interfaces Graphene-like carbon Antimony trisulfide High preformance Lithium-sulfur batteries
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Metal-nitrogen-doped hybrid ionic/electronic conduction triple-phase interfaces for high-performance all-solid-state lithium-sulfur batteries 被引量:1
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作者 Hao Li Jiangping Song +3 位作者 Fanglin Wu Rui Wang Dan Liu Haolin Tang 《Nano Research》 SCIE EI CSCD 2023年第8期10956-10965,共10页
The point-to-point contact mechanism in all-solid-state Li-S batteries(ASSLSBs)is not as efficient as a liquid electrolyte which has superior mobility in the electrode,resulting in a slower reaction kinetics and inade... The point-to-point contact mechanism in all-solid-state Li-S batteries(ASSLSBs)is not as efficient as a liquid electrolyte which has superior mobility in the electrode,resulting in a slower reaction kinetics and inadequate ionic/electronic conduction network between the S(or Li_(2)S),conductive carbon,and solid-state electrolytes(SSEs)for achieving a swift(dis)charge reaction.Herein,a series of hybrid ionic/electronic conduction triple-phase interfaces with transition metal and nitrogen co-doping were designed.The graphitic ordered mesoporous carbon frameworks(TM-N-OMCs;TM=Fe,Co,Ni,and Cu)serve as hosts for Li_(2)S and Li_(6)PS_(5)Cl(LPSC)and provide abundant reaction sites on the triple interface.Results from both experimental and computational research display that the combination of Cu-N co-dopants can promote the Li-ion diffusion for rapid transformation of Li_(2)S with adequate ionic(6.73×10^(−4)S·cm^(−1))/electronic conductivities(1.77×10^(−2)S·cm^(−1))at 25℃.The as-acquired Li_(2)S/Cu-N-OMC/LPSC electrode exhibits a high reversible capacity(1147.7 mAh·g^(−1))at 0.1 C,excellent capacity retention(99.5%)after 500 cycles at 0.5 C,and high areal capacity(7.08 mAh·cm^(−2)). 展开更多
关键词 all-solid-state lithium-sulfur batteries triple-phase interfaces ordered mesoporous carbons mixed ion/electron conductivities Li_(6)PS_(5)Cl solid electrolyte
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Robust Interfaces and Advanced Materials:Critical Designs and Challenges for High-Performance Supercapacitors
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作者 Yuzhao Liu Lanlan Feng +5 位作者 Mingfei Li Xiuyang Qian Chuanqi Sun Wenxuan Sun Yunshan Zheng Baohua Li 《Energy & Environmental Materials》 2026年第1期420-442,共23页
With the growing global energy demand and the pressing need for a clean energy transition,supercapacitors(SCs)have demonstrated significant application potential in electric vehicles,wearable electronics,and renewable... With the growing global energy demand and the pressing need for a clean energy transition,supercapacitors(SCs)have demonstrated significant application potential in electric vehicles,wearable electronics,and renewable energy storage systems owing to their rapid charge-discharge capability,exceptional power density,and prolonged cycle life.The improvement of their overall performance fundamentally depends on the synergistic design of electrode materials and electrolyte systems,as well as the precise regulation of the electrode-electrolyte interface.This review focuses on the key components of supercapacitors,systematically reviewing the design strategies of high-performance electrode materials,outlining recent advances in novel electrolyte systems,and comprehensively discussing the critical roles of interfacial reinforcement and optimization in enhancing device energy density,power performance,and cycling stability.Furthermore,interfacial engineering strategies and innovations in device architecture are proposed to address interfacial degradation in flexible SCs under mechanical stress.Finally,key future research directions are highlighted,including the development of high-voltage and wide-temperature-range electrolyte systems and the integrated advancement of multiscale in situ characterization techniques and theoretical modeling.This review aims to provide theoretical guidance and innovative strategies for material design,contributing toward the realization of next-generation supercapacitors with enhanced energy density and reliability. 展开更多
关键词 electrode materials electrolytes interface optimization robust interfaces SUPERCAPACITORS
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Brain-computer interfaces re-shape functional neurosurgery
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作者 Thomas Kinfe Steffen Brenner Nima Etminan 《Neural Regeneration Research》 2026年第3期1122-1123,共2页
Invasive as well as non-invasive neurotechnologies conceptualized to interface the central and peripheral nervous system have been probed for the past decades,which refer to electroencephalography,electrocorticography... Invasive as well as non-invasive neurotechnologies conceptualized to interface the central and peripheral nervous system have been probed for the past decades,which refer to electroencephalography,electrocorticography and microelectrode arrays.The challenges of these mentioned approaches are characterized by the bandwidth of the spatiotemporal resolution,which in turn is essential for large-area neuron recordings(Abiri et al.,2019). 展开更多
关键词 microelectrode arraysthe brain computer interfaces ELECTROENCEPHALOGRAPHY ELECTROCORTICOGRAPHY interface central peripheral nervous system non invasive neurotechnologies functional neurosurgery microelectrode arrays
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Interface management on high speed two:managing multiple complex interfaces in the design and construction of high speed railway infrastructure in the United Kingdom
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作者 Hudson Taivo Hitesh Shantilal Mistry 《Railway Sciences》 2026年第1期1-28,共28页
Purpose-Interface management is the process of managing communications,responsibilities and coordination of project parties,phases or physical entities which are dependent on one another.Interface management is a cruc... Purpose-Interface management is the process of managing communications,responsibilities and coordination of project parties,phases or physical entities which are dependent on one another.Interface management is a crucial part of managing any construction project-but particularly important for high-speed railway projects that often have several contractual parties and stakeholders,very long project timelines and huge upfront cost overlays.This paper discusses how various project interfaces were managed during the design and construction of the civil engineering infrastructure for the High Speed Two(HS2)project in the United Kingdom.Design/methodology/approach-The paper uses the case study methodology.Key interfaces on the HS2 project are grouped into various categories and the paper discusses how they were managed within the Area North Integrated Project Team(IPT)of the HS2 project made up of contractor Balfour Beatty VINCI(BBV),the Mott MacDonald SYSTRA Design Joint Venture(DJV)and client HS2 Ltd.3 different case studies drawn from across the IPT are used,each of them highlighting different interfaces and how these interfaces were managed.Findings-The paper shows how innovative technical designs and modern methods of construction were used to address some of the unique and peculiar challenges of designing a brand-new railway in the United Kingdom.Addressing the contrasting and often competing requirements of different stakeholders,coupled with challenging physical constraints of the very limited land available for the project and the use of a rarely used Act of Parliament in the delivery of the project required different approach to interface management.Collaboration and proactive stakeholder engagement are necessary for successful interface management on megaprojects.The authors posit that adopting an integrated approach to engineering and construction management is an essential ingredient for the successful delivery of high-speed railway projects.Originality/value-With many high-speed railway projects around the world coming up in the next few years,understanding the context and challenges for each country will help engineering and design managers adopt appropriate approaches for their projects.The lessons learned on the HS2 project are also transferable to other mega infrastructure projects with complex project interfaces. 展开更多
关键词 interface management Design management Design constraints Project management
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Stability of base-exposed backfill roof considering interfaces between adjacent drifts in underhand drift-and-fill mining
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作者 Qinghai Ma Guangsheng Liu +2 位作者 Xiaocong Yang Lijie Guo Andy Fourie 《Journal of Rock Mechanics and Geotechnical Engineering》 2026年第1期214-229,共16页
Stability of base-exposed backfill roof in underhand drift-and-fill mining is crucial for the safety of those working beneath.Given the commonly used primary-and-secondary mining sequence,interfaces are formed between... Stability of base-exposed backfill roof in underhand drift-and-fill mining is crucial for the safety of those working beneath.Given the commonly used primary-and-secondary mining sequence,interfaces are formed between adjacent filled drifts,which can weaken the integrity of the backfill roof.These interfaces also lead to two common drift layouts:aligned drifts and staggered drifts.However,less attention has been paid to the interfaces and the two drift layouts were not adequately distinguished in previous studies.In this paper,the interfaces between filled drifts were firstly considered to investigate the stability of backfill roof.Failure modes and strength requirements of backfill roof in aligned and staggered drifts are comprehensively investigated by FLAC3D,with a focus on considerations of varied shear parameters of the interfaces.Results show that failure modes in aligned drifts transition from block sliding to top caving,bottom caving or sloughing as the interface cohesion increases from zero to at least half of the backfill cohesion.Further increases in interface cohesion allow aligned drifts to behave as if there are no interfaces between them.The critical stability conditions of backfill roof in aligned drifts were mostly determined by the interface strength instead of the backfill strength.However,the stability of backfill roof in staggered drifts is barely affected by the interface strength.The outcomes are expected to provide references for mining engineers to optimize drift layouts and perform cost-effective backfill roof strength design at mines using underhand drift-and-fill mining method. 展开更多
关键词 Base-exposed backfill interface Failure mode Strength requirement Underhand drift-and-fill mining
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Bioextrusion of hydrogels with controlled mineral gradients for regenerative engineering of osteochondral interfaces
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作者 Xiao Zhao Weiwei Wang +2 位作者 Xiaojun Yu Dilhan M.Kalyon Cevat Erisken 《Bio-Design and Manufacturing》 2026年第1期122-136,I0019,I0020,共17页
The osteochondral(OC)interface exhibits a mineral gradient,varying in thickness by several hundred micrometers across different species.Disruptions in this interface damage OC tissues,leading to osteoarthritis.The nat... The osteochondral(OC)interface exhibits a mineral gradient,varying in thickness by several hundred micrometers across different species.Disruptions in this interface damage OC tissues,leading to osteoarthritis.The natural architecture and composition of native OC interfaces can be replicated using biomaterial scaffolds via regenerative engineering approaches.A novel one-step bioextrusion process was employed to fabricate a unitary synthetic graft(USG),which mimics the native OC interface’s mineral concentration gradient.This novel USG is composed of an agarose-based cartilage layer and a bone layer,consisting of agarose enriched with 20%(200 g/L)hydroxyapatite.The USG features a gradient interface with mineral concentrations transitioning from 0%to 20%(mass fraction),mimicking the transition between the cartilage and bone.Thermogravimetric analysis revealed that the gradient transition lengths of the graft and native OC tissue harvested from bovine knees were similar((647±21)vs.(633±124)μm).The linear viscoelastic properties of the grafts,which were evaluated using strain sweep and frequency sweep tests with oscillatory shear,indicated a dominant storage modulus over loss modulus similar to that of native OC tissues.The compressive and stress relaxation behaviors of the USGs demonstrated that the graft maintained structural integrity under mechanical stress.Viability assays performed after bioextrusion showed that chondrocytes and human fetal osteoblast cells successfully integrated and survived within their designated regions of the graft.The novel USGs exhibit properties similar to native OC tissue and are promising candidates for regenerating OC defects and restoring knee joint functionality. 展开更多
关键词 Osteochondral(OC)interface Mineral gradient Bioextrusion Hydrogel scaffold Regenerative engineering
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A Bisphosphonic Acid-functionalized Carbazole for Dual Hydrophilic Interfaces toward Efficient and Stable Organic Solar Cells
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作者 Chun-Hui Liu Yu-Chen Lian +3 位作者 Jia-Li Song Xiao-Peng Duan Zhen Wang Yan-Ming Sun 《Chinese Journal of Polymer Science》 2026年第4期950-958,I0009,共10页
Carbazole derivatives with a single phosphonic acid(PA)group are widely used as monolayer interfaces in perovskites and organic solar cells(OSCs).However,their hydrophilic nature renders ITO electrodes hydrophobic,lim... Carbazole derivatives with a single phosphonic acid(PA)group are widely used as monolayer interfaces in perovskites and organic solar cells(OSCs).However,their hydrophilic nature renders ITO electrodes hydrophobic,limiting further applications.In this study,a novel carbazole-based compound functionalized with two PA groups,denoted 2PACz-D1,was designed to create a dual hydrophilic interface.This configuration enables the formation of a bilayer hole-transporting layer(HTL).Specifically,one PA group anchors to the ITO electrode,while the other generates a secondary hydrophilic surface.This allows the subsequent deposition of hydrophilic PEDOT:PSS,forming a protective bilayer HTL that shields ITO from corrosive acidic polymers.The OSCs incorporating this bilayer HTL achieved a power conversion efficiency of 19.44%and exhibited improved thermal stability compared to devices with a single HTL.This work demonstrates the potential of bis-PA carbazole derivatives for tailoring the HTL surface properties,offering promising opportunities for various organic electronic devices. 展开更多
关键词 Organic solar cells Hole-transporting layer Hydrophilic interface Self-assembly monolayer Power conversion efficiency
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Unveiling nanodroplet impact force on material interfaces
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作者 Zhifeng Hu Haojiang Ran +3 位作者 Hanyi Liu Bingqiang Ji Jun Zhang Fuqiang Chu 《Droplet》 2026年第1期97-105,共9页
Nanodroplet impact on nanoscale material interfaces is widely involved in nanoscience and nanotechnology,affecting the technical reliability through complicated liquid‒solid interaction force,that is,the droplet impac... Nanodroplet impact on nanoscale material interfaces is widely involved in nanoscience and nanotechnology,affecting the technical reliability through complicated liquid‒solid interaction force,that is,the droplet impact force.However,our understanding of the nanodroplet impact force is still blank.Herein,we reveal that the nanoscale size(∼10 nm)and high impact velocity(>100 m/s)of nanodroplets lead to unique characteristics of impact force,significantly differing from those ofmacrodroplets(∼1 mm).The nanodroplet impact force profile holds a single-peak feature,which is independent of droplet parameters and material wettability.The significant water-hammer pressure induces the abnormal rising of impact force,yielding unexpectedly high peak values governed by the Mach number(more than 10 orders of magnitude higher than droplet gravity).Our findings of droplet impact force at the nanoscale reveal the potential challenge of the damage of material surfaces by nanodroplet impact,highlighting one crucial factor for advancing nanolithography and nanoprinting. 展开更多
关键词 impact force liquid solid interaction forcethat nanodroplet impact nanoscale material interfaces NANOLITHOGRAPHY material surface damage water hammer pressure impact forcesignificantly
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Heterointerfaces regulating the 3d-orbital electronic structure of FeN_(4) for enhanced oxygen reduction electrocatalysis
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作者 Liqun Liu Yongkang Zhu +1 位作者 Xuebi Rao Shiming Zhang 《Journal of Energy Chemistry》 2026年第3期255-263,共9页
Optimizing the oxygen reduction reaction(ORR)kinetics requires precise control of intermediate adsorption at active sites,which can be achieved through orbital engineering by regulating the electronic structure.This s... Optimizing the oxygen reduction reaction(ORR)kinetics requires precise control of intermediate adsorption at active sites,which can be achieved through orbital engineering by regulating the electronic structure.This study addresses the challenge by exploring how modulation of the 3d-orbital electronic structure of FeN_(4) active sites influences ORR electrocatalysis.To realize this,a catalyst composed of Fe_(3)C nanoparticles and FeN_(4) single atoms anchored on carbon black(Fe_(3)C-FeN_(4)/CB)was synthesized via a synergistic strategy of spatial confinement and atmosphere control.This unique heterostructure creates interfaces between Fe_(3)C and FeN_(4) that modulate the electronic configuration of the FeN_(4) center,transforming its geometry from square-planar to quasi-octahedral.Spectroscopic characterizations and theoretical calculations reveal that this orbital modulation results in a downward shift of the Fe dband center,altering the reaction pathway and lowering the energy barrier for ORR.Consequently,the Fe_(3)C-FeN_(4)/CB catalyst exhibits outstanding ORR activity,four-electron selectivity,excellent methanol tolerance,and remarkable electrochemical stability.When applied in a zinc-air battery,it achieves a peak power density of 178.4 mW cm^(-2)and superior cycling stability compared to commercial Pt/C catalysts.This work provides valuable insights into heterointerface-induced orbital modulation as a promising design principle for high-performance ORR electrocatalysts. 展开更多
关键词 Heterogeneous interface Fe_(3)C nanoparticles FeN_(4)single atoms Electronic structure Oxygen reduction reaction
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Multiple Tin Compounds Modified Carbon Fibers to Construct Heterogeneous Interfaces for Corrosion Prevention and Electromagnetic Wave Absorption 被引量:1
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作者 Zhiqiang Guo Di Lan +6 位作者 Zirui Jia Zhenguo Gao Xuetao Shi Mukun He Hua Guo Guanglei Wu Pengfei Yin 《Nano-Micro Letters》 SCIE EI CAS 2025年第1期507-527,共21页
Currently,the demand for electromagnetic wave(EMW)absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly urgent.Multi-component interface engineering is con... Currently,the demand for electromagnetic wave(EMW)absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly urgent.Multi-component interface engineering is considered an effective means to achieve high-efficiency EMW absorption.However,interface modulation engineering has not been fully discussed and has great potential in the field of EMW absorption.In this study,multi-component tin compound fiber composites based on carbon fiber(CF)substrate were prepared by electrospinning,hydrothermal synthesis,and high-temperature thermal reduction.By utilizing the different properties of different substances,rich heterogeneous interfaces are constructed.This effectively promotes charge transfer and enhances interfacial polarization and conduction loss.The 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 resin.The minimum reflection loss(RL)is−46.74 dB and the maximum effective absorption bandwidth is 5.28 GHz.Moreover,SnS/SnS_(2)/SnO_(2)/CF epoxy composite coatings exhibited long-term corrosion resistance on Q235 steel surfaces.Therefore,this study provides an effective strategy for the design of high-efficiency EMW absorbing materials in complex and harsh environments. 展开更多
关键词 Electrostatic spinning Component regulation Heterogeneous interfaces Electromagnetic wave absorption Corrosion protection
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Multiphase Co/Ni metal nitrides with heterointerfaces for enhanced interfacial polarization loss in electromagnetic wave absorption 被引量:2
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作者 Zhiqiang Guo Junwen Ren +6 位作者 Xianzhen Xu Di Lan Siyuan Zhang Mukun He Zhenguo Gao Zirui Jia Guanglei Wu 《Journal of Materials Science & Technology》 2025年第33期19-27,共9页
Metal nitrides exhibit excellent properties and application potential as electromagnetic wave(EMW)ab-sorbing materials.Their high conductivity and adjustable dielectric properties allow them to effectively attenuate E... Metal nitrides exhibit excellent properties and application potential as electromagnetic wave(EMW)ab-sorbing materials.Their high conductivity and adjustable dielectric properties allow them to effectively attenuate EMW.However,the current research on the synergistic effect of metal nitrides is scarce and has limited applications in the field of EMW absorption.In this work,Co/Ni metal-nitride fiber composites with multiphase structures were constructed by electrostatic spinning and multiphase composite process.The synergistic loss mechanism of multiphase structure and N atomic modulation is explored by modu-lating the components and microstructure of the materials.By constructing the multiphase composites,the controllable tuning of non-homogeneous interfaces and the enhanced interfacial polarization loss ef-fect were achieved.Electrochemical impedance spectroscopy was used to analyze the charge transfer ca-pability at the interface of multiphase Co/Ni metal nitride fiber composites.Through the controllable reg-ulation of the multiphase structure,the Co/Ni bimetallic nitride fiber composite(Co_(5.47)N/Ni_(4)N/CF)exhib-ited the strongest polarization loss capability,achieving a minimum reflection loss(RL_(min))of−43.82 dB and a maximum effective absorption bandwidth(EAB_(max))of 7.04 GHz.This study provides a valuable reference for multiphase composites in the field of EMW absorption by exploring the polarization loss mechanism of Co/Ni metal nitride multiphase materials. 展开更多
关键词 Multiphase composite Heterogeneous interface Polarization loss Electromagnetic wave absorption
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Component modulation strategy to construct multi-heterogeneous interfaces to promote interfacial polarization for efficient electromagnetic wave absorption 被引量:1
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作者 Ailing Feng Liyuan Yu +5 位作者 Di Lan Changpeng Lv Siyuan Zhang Zhenguo Gao Zhiqiang Guo Guanglei Wu 《Journal of Materials Science & Technology》 2025年第25期225-233,共9页
In the face of the increasingly serious electromagnetic wave (EMW) pollution, a component modulation strategy is proposed in this study. By integrating ZIF-67 and FeOOH into MXene nanosheets and performing heat treatm... In the face of the increasingly serious electromagnetic wave (EMW) pollution, a component modulation strategy is proposed in this study. By integrating ZIF-67 and FeOOH into MXene nanosheets and performing heat treatment, a multiphase heterogeneous structure based on the multicomponent synergistic effect was successfully constructed. The synergistic effect of dielectric loss and magnetic loss is realized, and the rich heterogeneous interface and multi-scale structure significantly enhance the interface polarization and multiple scattering. The results show that the EMW absorption performance can be optimized by adjusting the composition of the composites. MXene@CoFe_(2)O_(4) exhibits a minimum reflection loss (RLmin) of -44.98 dB at 2.3 mm thickness and a maximum effective absorption bandwidth (EAB_(max)) of 4.64 GHz at 2.1 mm. MXene@CoFe_(2)O_(4)/CoFe composite has an RLmin of -55.14 dB at a thickness of 2.1 mm and an EAB_(max) of 5.60 GHz at a thickness of 1.9 mm. This work provides important insights into the development of wideband EMW absorbent materials. 展开更多
关键词 Component modulation Heterogeneous interface interfacial polarization Electromagnetic wave absorption
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Propagation characteristics of stress waves induced by underground blasting under the influence of rock-soil interfaces 被引量:1
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作者 Xianzhong Meng Chuanbo Zhou +3 位作者 Nan Jiang Zhen Zhang Yumin Yang Di Wu 《Journal of Rock Mechanics and Geotechnical Engineering》 2025年第7期4139-4159,共21页
The Rock-soil interface is a common geological interface.Due to mechanical differences between soil and rock,the stress waves generated by underground blasting undergo intense polarization when crossing the rock-soil ... The Rock-soil interface is a common geological interface.Due to mechanical differences between soil and rock,the stress waves generated by underground blasting undergo intense polarization when crossing the rock-soil interface,making propagation laws difficult to predict.Currently,the characteristics of the impact of the rock-soil interface on blasting stress waves remain unclear.Therefore,the vibration field caused by cylindrical charge blasting in elastic rock and partial-saturation poro-viscoelastic soil was solved.A forward algorithm for the underground blasting vibration field in rock-soil sites was proposed,considering medium damping and geometric diffusion effects of stress waves.Further investigation into the influence of rock and soil parameters and blasting source parameters revealed the following conclusions:stress waves in soil exhibit dispersion,causing peak particle velocity(PPV)to display a discrete distribution.Soil parameters affect PPV attenuation only within the soil,while blasting source parameters affect PPV attenuation throughout the entire site.Multi-wave coupling effects induced by the rocksoil interface result in zones of enhanced and attenuated PPV within the site.The size of the enhancement zone is inversely correlated with the distance from the blasting source and positively correlated with the blasting source attenuation rate and burial depth,providing guidance for selecting explosives and blasting positions.Additionally,PPV attenuation rate increases with distance from the rock-soil interface,but an amplification effect occurs near the interface,most noticeable at 0.1 m.Thus,a sufficient safety distance from the rock-soil interface is necessary during underground blasting. 展开更多
关键词 Underground blasting Rock-soil interface Blasting stress wave Propagation characteristic Forward algorithm
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Frequency optimization for electrodes in implantable brain-computer interfaces 被引量:1
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作者 CHEN Han LIU Xiangyu +2 位作者 CHENG Jiajun QIN Jiangfan ZHANG Xueli 《Journal of Southeast University(English Edition)》 2025年第3期366-374,共9页
Fully implanted brain-computer interfaces(BCIs)are preferred as they eliminate signal degradation caused by interference and absorption in external tissues,a common issue in non-fully implanted systems.To optimize the... Fully implanted brain-computer interfaces(BCIs)are preferred as they eliminate signal degradation caused by interference and absorption in external tissues,a common issue in non-fully implanted systems.To optimize the design of electroencephalography electrodes in fully implanted BCI systems,this study investigates the penetration and absorption characteristics of microwave signals in human brain tissue at different frequencies.Electromagnetic simulations are used to analyze the power density distribution and specific absorption rate(SAR)of signals at various frequen-cies.The results indicate that lower-frequency signals offer advantages in terms of power density and attenuation coeffi-cients.However,SAR-normalized analysis,which considers both power density and electromagnetic radiation hazards,shows that higher-frequency signals perform better at superficial to intermediate depths.Specifically,at a depth of 2 mm beneath the cortex,the power density of a 6.5 GHz signal is 247.83%higher than that of a 0.4 GHz signal.At a depth of 5 mm,the power density of a 3.5 GHz signal exceeds that of a 0.4 GHz signal by 224.16%.The findings suggest that 6.5 GHz is optimal for electrodes at a depth of 2 mm,3.5 GHz for 5 mm,2.45 GHz for depths of 15-20 mm,and 1.8 GHz for 25 mm. 展开更多
关键词 brain-computer interfaces electromagnetic simulation electroencephalography electrodes power den-sity specific absorption rate
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Research status and prospects of the fractal analysis of metal material surfaces and interfaces
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作者 Qinjin Dai Xuefeng Liu +2 位作者 Xin Ma Shaojie Tian Qinghe Cui 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS 2025年第1期20-38,共19页
As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine properties.Fractal analysis has been used to characterize the shapes of metal... As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine properties.Fractal analysis has been used to characterize the shapes of metal materials at various scales and dimensions.Conventional methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and interfaces.However,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal materials.From the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear surfaces.The relationship between the fractal dimensions and properties of metal material surfaces and interfaces is summarized.Starting from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be developed.It is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future. 展开更多
关键词 metal material surfaces and interfaces fractal analysis fractal dimension HOMOGENEITY
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Constructing graphite-CeO_(2)interfaces to enhance the photothermal activity for solar-driven dry reforming of methane
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作者 LI Ruitao GONG Kun +3 位作者 DAI Yuanyuan NIU Qiang LIN Tiejun ZHONG Liangshu 《燃料化学学报(中英文)》 北大核心 2025年第8期1137-1147,共11页
CeO_(2) based semiconductor are widely used in solar-driven photothermal catalytic dry reforming of methane(DRM)reaction,but still suffer from low activity and low light utilization efficiency.This study developed gra... CeO_(2) based semiconductor are widely used in solar-driven photothermal catalytic dry reforming of methane(DRM)reaction,but still suffer from low activity and low light utilization efficiency.This study developed graphite-CeO_(2) interfaces to enhance solar-driven photothermal catalytic DRM.Compared with carbon nanotubes-modified CeO_(2)(CeO_(2)-CNT),graphite-modified CeO_(2)(CeO_(2)-GRA)constructed graphite-CeO_(2) interfaces with distortion in CeO_(2),leading to the formation abundant oxygen vacancies.These graphite-CeO_(2) interfaces with oxygen vacancies enhanced optical absorption and promoted the generation and separation of photogenerated carriers.The high endothermic capacity of graphite elevated the catalyst surface temperature from 592.1−691.3℃,boosting light-to-thermal conversion.The synergy between photogenerated carriers and localized heat enabled Ni/CeO_(2)-GRA to achieve a CO production rate of 9985.6 mmol/(g·h)(vs 7192.4 mmol/(g·h)for Ni/CeO_(2))and a light-to-fuel efficiency of 21.8%(vs 13.8%for Ni/CeO_(2)).This work provides insights for designing graphite-semiconductor interfaces to advance photothermal catalytic efficiency. 展开更多
关键词 dry reforming of methane photothermal catalysis CeO_(2) GRAPHITE interfaces
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Reducing UI Complexity Using Use Case Analysis in Adaptive Interfaces
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作者 Qing-Xing Qu Le Zhang +1 位作者 Fu Guo Vincent G.Duffy 《Computers, Materials & Continua》 2025年第12期4607-4627,共21页
This study aims to validate the Object-Oriented User Interface Customization(OOUIC)framework by employing Use Case Analysis(UCA)to facilitate the development of adaptive User Interfaces(UIs).The OOUIC framework advoca... This study aims to validate the Object-Oriented User Interface Customization(OOUIC)framework by employing Use Case Analysis(UCA)to facilitate the development of adaptive User Interfaces(UIs).The OOUIC framework advocates for User-Centered Design(UCD)methodologies,including UCA,to systematically identify intricate user requirements and construct adaptive UIs tailored to diverse user needs.To operationalize this approach,thirty users of Product Lifecycle Management(PLM)systems were interviewed across six distinct use cases.Interview transcripts were subjected to deductive content analysis to classify UI objects systematically.Subsequently,adaptive UIs were developed for each use case,and their complexity was quantitatively compared against the original system UIs.The results demonstrated a significant reduction in complexity across all adaptive UIs(Mean Difference,MD=0.11,t(5)=8.26,p<0.001),confirming their superior efficiency.The findings validate the OOUIC framework,demonstrating that UCD effectively captures complex requirements for adaptive UI development,while adaptive UIs mitigate interface complexity through object reduction and optimized layout design.Furthermore,UCA and deductive content analysis serve as robust methodologies for object categorization in adaptive UI design.Beyond eliminating redundant elements and prioritizing object grouping,designers can further reduce complexity by adjusting object dimensions and window sizing.This study underscores the efficacy of UCA in developing adaptive UIs and streamlining complex interfaces.Ultimately,UCD proves instrumental in gathering intricate requirements,while adaptive UIs enhance usability by minimizing object clutter and refining spatial organization. 展开更多
关键词 User interface customization interface complexity user-centered design deductive content analysis complex information system
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State-of-art of in situ observations of inclusion agglomeration at steel/Ar and steel/slag interfaces:a review of recent development on experimental and theoretical studies
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作者 Yi Wang Jian-xun Fu +3 位作者 Deepoo Kumar Qiang Wang Hong-liang Yang Wang-zhong Mu 《Journal of Iron and Steel Research International》 2025年第2期315-333,共19页
Cleanliness control of advanced steels is of vital importance for quality control of the products.In order to understand and control the inclusion removal during refining process in molten steel,its motion behaviors a... Cleanliness control of advanced steels is of vital importance for quality control of the products.In order to understand and control the inclusion removal during refining process in molten steel,its motion behaviors at the multiple steel/gas/slag interfaces have attracted the attention much of metallurgical community.The recent development of the agglomeration of non-metallic inclusions at the steel/Ar and steel/slag interfaces has been summarized,and both the experimental as well as theoretical works have been surveyed.In terms of in situ observation of high-temperature interfacial phenomena in the molten steel,researchers utilized high-temperature confocal laser scanning microscopy to observe the movement of more types of inclusions at the interface,i.e.,the investigated inclusion is no longer limited to Al_(2)O_(3)-based inclusions but moves forward to rare earth oxides,MgO-based oxides,etc.In terms of theoretical models,especially the model of inclusions at the steel/slag interface,the recent development has overcome the limitations of the assumptions of Kralchevsky-Paunov model and verified the possible errors caused by the model assumptions by combining the water model and the physical model.Last but not least,the future work in this topic has been suggested,which could be in combination of thermal physical properties of steels and slag,as well as utilize the artificial intelligence-based methodology to implement a comprehensive inclusion motion behaviors during a comprehensive metallurgical process. 展开更多
关键词 Inclusion movement Steel/Ar interface Steel/slag interface In situ observation
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General Management Method for Mechanical Interfaces of Unit
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作者 ZHOU Xiaolun LI Yanhui +2 位作者 ZHOU Yaohua GUO Jia JI Jingquan 《Aerospace China》 2025年第1期24-30,共7页
The functions,applications,developments and current application mode of IDS3.x system are generally introduced in this paper.Then the development mode of spacecraft based on IDS3.x system is described.The existing pro... The functions,applications,developments and current application mode of IDS3.x system are generally introduced in this paper.Then the development mode of spacecraft based on IDS3.x system is described.The existing problems especially the information redundancy of mechanical interface and their effects are pointed out.A new solution is proposed by developing 3D-IDS system.The central functions of 3D-IDS system are shown in this study.A new application mode of 3D-IDS system is explored and described by showing how to fill in,countersign and apply with 3D-IDS file.The 2D drawing and sketch are removed from 3D-IDS system to avoid information redundancy of mechanical interface.The consistency between 3D model and the parameters of IDS file can be guaranteed by the interface tool.The efficiency of filling in,countersigning and applying,has been improved significantly,which greatly promotes the coordination and total efficiency of spacecraft system design departments and unit design departments. 展开更多
关键词 3D-IDS MANAGEMENT mechanical interfaces
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