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Localized Topological States in Finite Non-Hermitian Photonic Lattices 认领 引用
1
作者 Xiong Fan Wenchi Zang +2 位作者 Ming Ma Li-Gang Wang Tianxing Ma 《Chinese Physics Letters》 SCIE EI CAS CSCD 2026年第4期142-153,共12页
Edge states hybridize in finite-size topological materials,opening a gap between edge states which weakens the topological protection.Recent studies discover the recovery of zero modes in the finite-size non-Hermitian... Edge states hybridize in finite-size topological materials,opening a gap between edge states which weakens the topological protection.Recent studies discover the recovery of zero modes in the finite-size non-Hermitian Su-Schrieffer-Heeger photonic lattices,which is of significance for fault-tolerant photonic integrations.In this paper,we reveal that the underlying mechanism is level attraction,a phenomenon common in non-Hermitian systems. 展开更多
关键词 level attractiona gap edge states localized topological states non hermitian photonic lattices edge states hybridization edge states hybridize finite size topological materials
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Frequency-Dependent Spatial Regulation of Chiral and Antichiral Edge States in Photonic Crystals under Sublattice Modulation 认领 引用
2
作者 Yousi Chen Shangxian Du +4 位作者 Shiyu Liu Weipeng Li Liwei Shi Enyuan Wang Yuting Yang 《Chinese Physics Letters》 SCIE EI CAS CSCD 2026年第7期40-44,I0021-I0023,共5页
The chiral edge states in the Haldane model and the antichiral edge states in the modified Haldane model have been extensively studied,revealing intriguing transport properties.In this work,the frequency-dependent spa... The chiral edge states in the Haldane model and the antichiral edge states in the modified Haldane model have been extensively studied,revealing intriguing transport properties.In this work,the frequency-dependent spatial regulation of chiral and antichiral edge states is investigated in gyromagnetic photonic crystals through sublattice modulation.The unequal magnetization intensity on two-type sublattices,breaking the inversion symmetry,leads to the shift of the chiral edge state dispersions and the lifting of the degenerate antichiral edge states.Through simulations and experiments,we demonstrate that,under sublattice modulation,the transport efficiency of chiral and antichiral edge states at different edges is actively controlled,breaking through the functional limitations of conventional models.Based on this mechanism,a multi-channel waveguide is proposed,providing a new path for the functional innovation and system integration of topological photonic devices. 展开更多
关键词 transport propertiesin chiral edge states modified haldane model sublattice modulationthe gyromagnetic photonic crystals antichiral edge states haldane model shift chiral edge state dispersions
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Random State Approach to Quantum Computation of Electronic-Structure Properties 认领 引用
3
作者 Yiran Bai Feng Xiong Xueheng Kuang 《Chinese Physics Letters》 SCIE EI CAS CSCD 2026年第1期89-104,共16页
Classical computation of electronic properties in large-scale materials remains challenging.Quantum computation has the potential to offer advantages in memory footprint and computational scaling.However,general and v... Classical computation of electronic properties in large-scale materials remains challenging.Quantum computation has the potential to offer advantages in memory footprint and computational scaling.However,general and viable quantum algorithms for simulating large-scale materials are still limited.We propose and implement random-state quantum algorithms to calculate electronic-structure properties of real materials.Using a random state circuit on a small number of qubits,we employ real-time evolution with first-order Trotter decomposition and Hadamard test to obtain electronic density of states,and we develop a modified quantum phase estimation algorithm to calculate real-space local density of states via direct quantum measurements.Furthermore,we validate these algorithms by numerically computing the density of states and spatial distributions of electronic states in graphene,twisted bilayer graphene quasicrystals,and fractal lattices,covering system sizes from hundreds to thousands of atoms.Our results manifest that the random-state quantum algorithms provide a general and qubit-efficient route to scalable simulations of electronic properties in large-scale periodic and aperiodic materials. 展开更多
关键词 periodic materials random state circuit random state quantum algorithms electronic structure properties density states aperiodic materials quantum algorithms quantum computation
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Higher-order topological states and magnetic field control in elastic metamaterials 认领 引用
4
作者 Yuqi Tang Weijian Zhou +3 位作者 Yangwei Mai Yingjie Chen Zheng Zhong Weiqiu Chen 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2026年第3期138-145,共8页
Recently,the concept of higher-order topological insulators has aroused widespread attention and research interest.However,current studies have predominantly focused on the domain of acoustic waves.Compared to acousti... Recently,the concept of higher-order topological insulators has aroused widespread attention and research interest.However,current studies have predominantly focused on the domain of acoustic waves.Compared to acoustic waves,elastic waves are vector waves,making their study more complex and challenging.Therefore,achieving higher-order topological states in elastic waves holds significant research value.In this paper,we proposed the design of an intelligent topological metamaterial,which is composed of magneto-rheological thin layers and an elastic substrate.First,by adjusting the topological structure,we successfully excited first-order topological states of Lamb waves in numerical simulations.Subsequently,we constructed a two-dimensional topological structure to excite zero-order topological corner states.Given the unique advantages of magnetic fields in regulating material properties and behaviors,we investigated the effects of magnetic fields as an external control mechanism on Lamb waves in magneto-rheological materials.Our analysis focused on the regulation of Lamb wave topological edge states and corner states via magnetic fields.The results demonstrate that by varying the magnetic field strength,we can precisely control the characteristics of the topological states.Magnetic field modulation of the topological states in Lamb waves enables the realization of non-contact,controllable phononic devices,which is of great significance for the development of topological acoustics. 展开更多
关键词 Lamb waves Topological insulators Topological edge states Topological corner states Magnetic field modulation
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Topological waveguide crossing between pseudo-spin-valley-locked domain-wall states 认领 引用
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作者 JIA-YI LIU ZI-XUAN GAO +4 位作者 HAO-CHANG MO XIAO-DONG CHEN JIAN-WEI LIU WEN-JIE CHEN JIAN-WEN DONG 《Photonics Research》 SCIE EI CAS CSCD 2026年第5期1722-1736,共15页
Pseudo-spin and valley are two significant degrees of freedom in topological photonics,which enable the realization of robust boundary states and consequently tremendous fabrication-tolerant photonic devices.As integr... Pseudo-spin and valley are two significant degrees of freedom in topological photonics,which enable the realization of robust boundary states and consequently tremendous fabrication-tolerant photonic devices.As integration density increases in photonic chips,low-crosstalk waveguide crossings become critical for maintaining overall performance.With conventional waveguide crossings susceptible to defect-induced backscattering,topology can provide a viable solution to this issue.Here,we experimentally demonstrate a topological waveguide crossing based on pseudo-spin-valley-locked domain-wall states. 展开更多
关键词 waveguide crossings topological waveguide crossing pseudo spin valley locked domain wall states realization robust boundary states photonic chipslow crosstalk photonic devices integration density topological photonicswhich
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High-precision calculations of highly excited and autoionizing states of the nickel atom 认领 引用
6
作者 Sheng-Bo Niu Jun-Yao Zhang +1 位作者 Rui Jin Yi-Zhi Qu 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第6期469-477,共9页
High-precision atomic data,including highly excited energy levels and their lifetimes,as well as autoionizing states,are essential for astrophysics,materials science,and energy research applications.Despite the increa... High-precision atomic data,including highly excited energy levels and their lifetimes,as well as autoionizing states,are essential for astrophysics,materials science,and energy research applications.Despite the increasing demand for highprecision databases,the availability of data concerning complex transition-metal atoms remains limited.In this work,we present a systematic high-precision theoretical study of highly excited and autoionizing states of the nickel atom for Jπ=4-symmetry,considering the indispensable correlation effects between bound and continuum configurations.Calculations for discrete highly excited states and autoionizing states are conducted under the same theoretical scheme,which employs the relativistic multichannel theory(RMCT),to obtain an eigenchannel scattering matrix that varies smoothly over a wide energy region.The scattering matrix is then used with the multichannel quantum defect theory(MQDT)to semi-analytically obtain highly excited states and autoionizing states.Excellent agreement is achieved between the theoretical results and existing experimental discrete levels with a maximum of 0.02%deviation.An abnormal lifetime variation of the autoionizing states along the same series is observed.The resonance energy,lifetime,and assignment of autoionizing states are systematically presented for the first time,with the objective of contributing to the fields of astrophysics,materials science,and energy research.The datasets presented in this paper,including the energy levels and lifetimes of autoionizing states,are openly available at http://gffzzd3cc09b8251d45dfs00qq50pvbxpf6ffv.ffgz.tsg.suse.edu.cn/10.57760/sciencedb.j00113.00279. 展开更多
关键词 multichannel quantum defect theory highly excited states autoionizing states high precision
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Topological Corner States due to Boundary Defects 认领 引用
7
作者 Yiqi Zhang Yuwei Hu +1 位作者 Yongdong Li Ce Shang 《Chinese Physics Letters》 SCIE EI CAS CSCD 2026年第1期44-48,共5页
In conventional higher-order topological insulators(HOTIs),the emergence of topological states can be explained by using the nonzero bulk polarization index.However,corner states emerge in HOTIs with incomplete bounda... In conventional higher-order topological insulators(HOTIs),the emergence of topological states can be explained by using the nonzero bulk polarization index.However,corner states emerge in HOTIs with incomplete boundary unit cells(i.e.,boundary defects)even though the bulk polarization is zero,which challenges the conventional understanding of HOTIs.Here,based on a Kekul´e-distorted honeycomb lattice with incomplete unit cells,we reveal that incomplete unit cells exhibit fractional charges through the analysis of Wannier centers by developing a compensation method and creating the concept of Wannier center domain(WCD)which is the smallest region that one Wannier center occupies.This method compensates for the missing parts of these boundary incomplete unit cells with additional WCDs to make them complete.The compensated WCDs automatically carry the corresponding charge,and this charge together with that of the incomplete unit cell constitutes the total charge of the complete unit cell after compensation.We conclude that the emergence of corner states is attributed to the filling anomaly,which is a fundamental mechanism.Our results refresh the understanding of HOTIs,especially those with structural discontinuities,and provide a novel design for topological states which have application value in producing optical functional devices. 展开更多
关键词 unit cellswe higher order topological insulators topological corner states boundary unit cells ieboundary incomplete unit cells bulk polarization index fractional charges emergence topological states
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Establishing optical indicators for the state of hydrogen in MgH2 认领 引用 被引量：1
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作者 Yuxuan Liu Tingyan Wang +7 位作者 Man Shu Jianghao Cai Xiaotian Tang Tongao Yao Zhuoran Xu Zhengyang Gao Juan Chen Weijie Yang 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2026年第5期1436-1447,I0039-I0064,共12页
Accurate determination of the state of hydrogen(SOH)in solid-state hydrogen storage materials is essential not only for optimizing hydrogen release kinetics and enhancing storage efficiency but also for ensuring syste... Accurate determination of the state of hydrogen(SOH)in solid-state hydrogen storage materials is essential not only for optimizing hydrogen release kinetics and enhancing storage efficiency but also for ensuring system safety in practical applications.While most existing studies have concentrated on thermodynamics and kinetics,direct monitoring of residual hydrogen content,a parameter of critical engineering relevance,has rarely been reported.This highlights the urgent need to realize online SOH detection through new physical properties.In this study,we propose a non-invasive,real-time SOH monitoring strategy for magnesium hydride(MgH2),based on optical properties and combining density functional theory(DFT)-based optical calculations with experimental validation.Using DFT,the optical properties of MgH2and its dehydrogenated form(Mg)were systematically calculated across the infrared,visible,and ultraviolet spectral ranges.Theoretical results revealed strong linear correlations between SOH and specific optical parameters,such as reflectance at1200 nm and 550 nm and refractive index at 250 nm,with the coefficient of determination exceeding 0.99 and mean absolute errors below 0.05.To validate these predictions,reflectance measurements were conducted at 940 nm,a wavelength identified as highly sensitive to hydrogenation,and a consistent decrease in reflectance with increasing hydrogen uptake was observed.The underlying mechanism was attributed to band structure evolution and electron density redistribution,supported by density of states analysis and Drude model interpretations.This work establishes a robust theoretical and experimental framework for optical SOH diagnostics,emphasizes the importance of residual hydrogen detection for advancing solid-state hydrogen storage from fundamental research toward practical engineering applications,and provides new insights into the design of intelligent,optically responsive hydrogen storage systems,paving the way for the development of spectroscopic SOH sensors in next-generation hydrogen energy technologies. 展开更多
关键词 magnesium hydride state of hydrogen density functional theory optical properties reflectance measurements
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Ce3+-doped CaSrSiO4 blue phosphor prepared via a novel selfreduction strategy for high-CRI solid-state lighting and visible light communication 认领 引用 被引量：1
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作者 Yuqi Cai Chunyu Zuo +6 位作者 Weiling Yang Yifeng Zhu Shuai Yang Yingchao Li Xin Zhao Zhuang Liu Chun Li 《Journal of Rare Earths》 SCIE EI CAS CSCD 2026年第1期56-66,共11页
This study focuses on the synthesis and luminesce nce properties of Ce3+-doped CaSrSiO4 phosphor.Typically,the synthesis of Ce3+luminescent materials requires a reducing atmosphere.In this work,the traditiona... This study focuses on the synthesis and luminesce nce properties of Ce3+-doped CaSrSiO4 phosphor.Typically,the synthesis of Ce3+luminescent materials requires a reducing atmosphere.In this work,the traditional high-temperature solid-phase method was used in air atmosphere with SiC as the reducing material to successfully prepare CaSrSiO4:Ce3+ blue phosphor,and the self-reduction mechanism is discussed.The samples were characterized by X-ray diffraction(XRD),Rietveld refined XRD,scanning electron microscopy(SEM),and X-ray photoelectron spectroscopy(XPS),and the characterization results show that the CaSrSiO4 phase is obtained.The resulting phosphor exhibits exceptional brightness in blue light and remarkable thermal stability,with a ratio of 94% at elevated temperatures(423 K/303 K).The Ca1-xSr1-xSiO4:0.015Ce3+,0.015Li+ phosphors were combined with commercial green and red powders to create a white light-emitting diode(WLED) package with 365 nm chips.This results in a WLED with high performance,featuring a high color rendering index of Ra=95 and a correlated color temperature(CCT) of 5373 K.At the same time,a visible light communication system was produced to test the communication bandwidth.Compared with commercial YAG:Ce3+ phosphor and BAM:Eu2+ phosphor,the bandwidth is increased by 40.9% and 1092.3%,respectively. 展开更多
关键词 CaSrSiO4phosphor Visible light communication Solid state lighting Bandwidth Self-reducing phosphor Rare earths
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Deep Learning-Enhanced Human Sensing with Channel State Information: A Survey 认领 引用 被引量：1
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作者 Binglei Yue Aili Jiang +3 位作者 Chun Yang Junwei Lei Heng Liu Yin Zhang 《Computers, Materials & Continua》 SCIE EI 2026年第1期1-28,共28页
With the growing advancement of wireless communication technologies,WiFi-based human sensing has gained increasing attention as a non-intrusive and device-free solution.Among the available signal types,Channel State I... With the growing advancement of wireless communication technologies,WiFi-based human sensing has gained increasing attention as a non-intrusive and device-free solution.Among the available signal types,Channel State Information(CSI)offers fine-grained temporal,frequency,and spatial insights into multipath propagation,making it a crucial data source for human-centric sensing.Recently,the integration of deep learning has significantly improved the robustness and automation of feature extraction from CSI in complex environments.This paper provides a comprehensive review of deep learning-enhanced human sensing based on CSI.We first outline mainstream CSI acquisition tools and their hardware specifications,then provide a detailed discussion of preprocessing methods such as denoising,time–frequency transformation,data segmentation,and augmentation.Subsequently,we categorize deep learning approaches according to sensing tasks—namely detection,localization,and recognition—and highlight representative models across application scenarios.Finally,we examine key challenges including domain generalization,multi-user interference,and limited data availability,and we propose future research directions involving lightweight model deployment,multimodal data fusion,and semantic-level sensing. 展开更多
关键词 Channel State Information(CSI) human sensing human activity recognition deep learning
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Unified Framework for Ionization Balance and Equation of State in Partially Ionized Plasmas from Structure Factors 认领 引用
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作者 Chengliang Lin Yong Hou +2 位作者 Jianmin Yuan Yong Wu Jianguo Wang 《Chinese Physics Letters》 SCIE EI CAS CSCD 2026年第5期42-48,共7页
The ionization balance and charge state distribution of partially ionized plasmas are fundamental to predicting the key properties like the equation of state and transport properties.However,its determination remains ... The ionization balance and charge state distribution of partially ionized plasmas are fundamental to predicting the key properties like the equation of state and transport properties.However,its determination remains contentious because of the ambiguous partitioning of electronic states into free and bound components.Here,we present a unified framework that rigorously connects the ionization potential depression,the ionization degree,and the equation of state through the structure factors.By incorporating thermal kinetic bottlenecks and pressure ionization via a modified partition function,and treating ionization potential depression through structure factors,the model resolves longstanding discrepancies in predicted ionization degrees.It accurately reproduces path integral Monte Carlo equations of state of hydrogen plasmas across a broad range of densities and temperatures,clarifies the competing roles of thermal and pressure ionization,and provides a clear link between microscopic electronic structure and macroscopic thermodynamics.This work offers a predictive and thermodynamically consistent foundation for modeling partially ionized plasmas in high energy density and astrophysical contexts. 展开更多
关键词 partially ionized plasmas unified framework equation state ionization balance predicting key properties charge state distribution
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Quantum Interference and Optical Tuning of Self-Trapped Exciton State in Double Halide Perovskite 认领 引用
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作者 Kai-Xuan Xu Xin-Bao Liu +9 位作者 Simin Pang Zhe Zhang Yubin Wang Haonan Chang Jiajun Luo Jiang Tang Qihua Xiong Sheng Meng Shiwu Gao Jun Zhang 《Chinese Physics Letters》 SCIE EI CAS CSCD 2026年第3期87-101,共15页
Self-trapped excitons(STEs),known for their unique radiative properties,have been harnessed in diverse photonic devices;however,their comprehensive understanding and manipulation remain elusive.In this study,we presen... Self-trapped excitons(STEs),known for their unique radiative properties,have been harnessed in diverse photonic devices;however,their comprehensive understanding and manipulation remain elusive.In this study,we present novel experimental and theoretical evidence revealing the hybrid nature and optical tunability of STE state in Cs2Ag0.4Na0.6InCl6.The detection of the Fano resonance in laser energy-dependent Raman and photoluminescence spectra indicates the emergence of an exciton-phonon hybrid state,arising from robust quantum interference between the discrete phonon and continuum exciton states.Moreover,we demonstrate continuous tuning of this hybrid state with the energy and intensity of the laser field.These findings lay the foundation for a comprehensive understanding of the nature of STE and their potential for state control. 展开更多
关键词 photonic deviceshowevertheir self trapped exciton state optical tuning exciton phonon hybrid state fano resonance photoluminescence spectra quantum interference double halide perovskite
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Certifying Quantum States with Uniform Measurements 认领 引用
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作者 Liang Mao Yifei Wang +1 位作者 Yingfei Gu Chengshu Li 《Chinese Physics Letters》 SCIE EI CAS CSCD 2026年第7期59-63,I0037-I0040,共5页
Qubit-resolved operations and measurements are required for most current quantum information processing schemes.However,these operations can be experimentally costly due to the need for local addressing,demanding sign... Qubit-resolved operations and measurements are required for most current quantum information processing schemes.However,these operations can be experimentally costly due to the need for local addressing,demanding significant classical control.A more resource-efficient alternative to extract information is uniform measurement,where a site-independent rotation of qubits is performed before mea-suring in the computational basis.This operation can be performed in parallel,or globally,in atom-and ion-based platforms,reducing resource cost and increasing fidelity.In this work,we initiate the exploration of the utility of this operation in quantum information processing.In particular,we demonstrate that uniform measurements can certify certain graph states,a family of highly entangled and broadly useful quantum states.We provide a sample-efficient certification algorithm with a proved performance guarantee,together with an experimental scheme based on analog-mode Rydberg atom arrays.Uniform measurements,therefore,allow direct and efficient char-acterization of quantum states on quantum platforms in a hitherto unexplored manner.More broadly,our work establishes"uniformity"as a meaningful and practically motivated resource rubric for quantum information processing,and offers new insights into the architec-tural design of quantum computing devices. 展开更多
关键词 Resource Efficiency Graph States uniform measurementwhere quantum information processing local addressingdemanding Qubit Resolved Operations Quantum States Uniform Measurements
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Switching the Droplet Rebound Direction on Anisotropic Surfaces by Manipulating the Wetting State 认领 引用 被引量：1
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作者 Shuo-Yan Zhang Jian-Gang Guo 《Acta Mechanica Solida Sinica》 SCIE EI CSCD 2026年第4期552-562,共11页
Droplet rebound is a key topic in interfacial physics and fluid mechanics,with important applications in industry,energy,and biomedicine.Based on the principle of energy conservation,a theoretical model was developed ... Droplet rebound is a key topic in interfacial physics and fluid mechanics,with important applications in industry,energy,and biomedicine.Based on the principle of energy conservation,a theoretical model was developed to describe droplet rebound on anisotropic superhydrophobic surfaces,providing functional relationships between the rebound direction and velocity of the droplet and the structural characteristic parameters.Combined with numerical simulations and experimental characterization,it was found that a stable Cassie state reduces energy dissipation during the droplet spreading and rebound process,facilitating low energy rebound.Moreover,under different parameter conditions,droplets can exhibit completely opposite motion on anisotropic surfaces.With the increase of the proportion of structures in the Wenzel wetting state,the droplet rebound direction gradually shifts from opposite to the structural inclination to the same direction.Furthermore,the droplet spreading and rebound process is primarily influenced by the droplet’s initial state and the surface compressive stability.Through force-material optimized design,the fabricated biomimetic surface enables droplets to maintain a Cassie state with minimal energy dissipation even at We=18,reducing the required Weber number by 35%compared with the rebound distance in the Wenzel state.This study further refines the mechanical model of droplet rebound,addressing challenges such as the precise control of droplet motion. 展开更多
关键词 Droplet rebound Anisotropic surface Wetting state Structural design
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Vision Mamba attention feature fusion UNet:an innovative state space model for accurate polyp segmentation 认领 引用
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作者 Bo YANG Biyuan LI +1 位作者 Gaowei SUN Jinying MA 《Optoelectronics Letters》 EI 2026年第3期187-192,共6页
Colorectal cancer(CRC)is a prevalent disease,with polyps serving as its precursors.Accurate polyp segmentation is crucial for early CRC prevention.However,due to different sizes of the polyps,the boundaries are not cl... Colorectal cancer(CRC)is a prevalent disease,with polyps serving as its precursors.Accurate polyp segmentation is crucial for early CRC prevention.However,due to different sizes of the polyps,the boundaries are not clear.Therefore,accurate segmentation of polyps is a challenging task.This paper proposes vision Mamba attention feature fusion UNet(VMA-UNet),a U-shaped asymmetric codec structure model grounded in the state space model(SSM).The VMA-UNet incorporates attention feature fusion(AFF)in order to enhance the feature representation of small polyps.A new IUD loss function,namely combining intersection over union(IoU)loss function and Dice loss function,is proposed to address both large polyps and small polyps,and to mitigate the issue of data imbalance.When applied to multiple datasets,VMA-UNet demonstrates robust performance,particularly in small polyp segmentation,showcasing its practical value.The network proposed in this paper overcomes the inherent shortcomings of convolutional neural network(CNN)and transformers,not only performing well in remote interaction modeling,but also maintaining linear computational complexity.Our study introduces a new method for polyp segmentation based on SSM and advances the field. 展开更多
关键词 unet state space model vision mamba polyp segmentation vision mamba attention feature fusion state space model ssm colorectal cancer crc attention feature fusion
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Genetic programming-driven damage state prediction for slender rectangular reinforced concrete structural walls 认领 引用
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作者 Nabajit Sarkar Kaustubh Dasgupta 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2026年第2期431-447,共17页
Structures located in high seismic zones often utilize reinforced concrete(RC)frame-wall systems for improved lateral strength and stiffness,whereby the structural walls serve as a critical component of the lateral lo... Structures located in high seismic zones often utilize reinforced concrete(RC)frame-wall systems for improved lateral strength and stiffness,whereby the structural walls serve as a critical component of the lateral load resisting system.To effectively assess the potential vulnerability of structural systems across different levels of seismic demands,it is important to establish clear,quantitative thresholds for specific damage states,especially for the critical structural components within a building system.The currently available damage state definitions for RC structural walls are based on empirical limits and do not provide predictions for damage thresholds based on key design characteristics of a wall.To address this challenge,the present study employs genetic programming(GP),a form of artificial intelligence,to formulate accurate expressions for drift prediction for various damage states,using a dataset of 8,125 analytically studied specimens of RC structural walls.These expressions take into account the effects of various design characteristics,such as wall aspect ratio,axial load ratio,boundary element longitudinal reinforcement ratio,web longitudinal reinforcement ratio,and ratio of boundary element length to wall length in determining deformation limits.The developed prediction models have been evaluated for accuracy and validity using various statistical measures.In addition,the proposed equations have been compared with other available deformation limits in relevant design standards and the available literature to predict experimental results of RC wall components.The findings of these analyses indicate that the developed expressions provide significantly higher accuracy and superior predictions compared to existing empirical damage state definitions. 展开更多
关键词 RC structural wall damage state threshold genetic programming drift level parameterized damage state expression
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Fast Anomaly Detection and Joint State Estimation for Perturbed Nonlinear Systems With Prolonged Output Anomalies 认领 引用
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作者 Guangdeng Chen Xiao-Jie Peng +2 位作者 Yan Lei Chao Huang Hongyi Li 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2026年第6期1301-1313,共13页
State estimation under anomalies such as disturbances and faults remains a fundamental challenge in nonlinear systems,with its difficulty further exacerbated by potential network attacks.This study investigates fast a... State estimation under anomalies such as disturbances and faults remains a fundamental challenge in nonlinear systems,with its difficulty further exacerbated by potential network attacks.This study investigates fast anomaly detection and state estimation for perturbed nonlinear systems where actual outputs may be anomalous over a prolonged period.First,a fixedtime observer is constructed.By leveraging integral-type composite Lyapunov functions and homogeneity theory,the error bounds are proven under varying scenarios involving model disturbances,measurement noise,and nonlinearity.Based on these bounds,a fast anomaly detection mechanism is designed.Next,a cascade predictor is developed based on the fixed-time observer,which uses historical outputs from a previous time window to predict the current system state.Simultaneously,an algorithm is proposed to determine the reference historical output based on anomaly detection results,improving long-term prediction accuracy and mitigating the impact of anomaly detection delays.Finally,the secure state estimation is derived by fusing states from the fixed-time observer and the cascade predictor,depending on the anomaly detection results.The effectiveness of the proposed method is demonstrated through simulations on autonomous vehicles. 展开更多
关键词 Anomaly detection cascade predictor fixed-time observer output anomalies secure state estimation
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Biofabrication and biomedical manufacturing research frontiers in the United States 认领 引用
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作者 Yunxia Chen Kyle R.Phillips +62 位作者 Eben Alsberg Thomas E.Angelini Nasim Annabi Anthony Atala Amit Bandyopadhyay Leon M.Bellan Luiz E.Bertassoni Adriana Blazeski Thomas Boland Susmita Bose Jason A.Burdick Robert C.Chang Christopher S.Chen Roland K.Chen Douglas B.Chrisey Elizabeth Cosgriff-Hernandez Paul D.Dalton David Dean Aixiang Ding Bin Duan Marc Ferrer John P.Fisher Gabor Forgacs Debolina Ghosh Warren L.Grayson Murat Guvendiren MD Ahasan Habib Sarah C.Heilshorn Ashley Hicks Scott J.Hollister Congrui Jin Yifei Jin Roger DKamm Bashir Khoda Robert Langer Cato T.Laurencin Sang Jin Lee Kam W.Leong Ming C.Leu Wei Li Michael Mak Amir K.Miri Roger J.Narayan Liqun Ning Brenda M.Ogle Ibrahim T.Ozbolat Zhijian Pei Peihua Qiu Krishanu Saha Jayant Saksena Vahid Serpooshan Albert Shih Rohan A.Shirwaiker Pranav Soman Ali Tamayol Mark W.Tibitt Changxue Xu Yunzhi Peter Yang Lijie Grace Zhang James J.Yoo Shaochen Chen Yu Shrike Zhang Yong Huang 《Bio-Design and Manufacturing》 SCIE EI CAS CSCD 2026年第4期617-725,I0001,共109页
Biofabrication and biomedical manufacturing are inherently multidisciplinary,integrating living systems with advanced manufacturing to create functional products for applications spanning regenerative engineering and ... Biofabrication and biomedical manufacturing are inherently multidisciplinary,integrating living systems with advanced manufacturing to create functional products for applications spanning regenerative engineering and medicine,in vitro disease modeling,drug discovery,and medical devices.As these technologies develop,they are emerging as core enablers of next generation healthcare and life-science innovation.In the United States(U.S.),rapid progress across fabrication processes,material systems,physics-based modeling,and translation-oriented strategies is expanding the achievable design space and accelerating movement from laboratory demonstrations toward clinical and commercial deployment.We introduce major U.S.research frontiers and highlight representative advances in this field that support applications including organoids and other microphysiological systems for in vitro testing,engineered tissue constructs for in vivo use,and medical devices and biohybrid platforms.We further provide an outlook on advancing robust,ethical biofabrication and biomedical manufacturing in the U.S.research ecosystem. 展开更多
关键词 Biofabrication Biomedical manufacturing United States Biomaterials Physics modeling Biomechanics
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Emerging landscape of photonic bound states in the continuum for next-generation metadevices 认领 引用
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作者 Thi Thu Ha Do Ronghui Lin +5 位作者 Daniil A.Shilkin Zhiyi Yuan Cuong Dang Arseniy I.Kuznetsov Jinghua Teng Son Tung Ha 《Opto-Electronic Advances》 SCIE EI CAS CSCD 2026年第3期8-41,共34页
Bound states in the continuum(BICs) have emerged at the forefront of optics and nanophotonics due to their exceptionally high quality-factors and unique topological characteristics. Advances in design capabilities,nan... Bound states in the continuum(BICs) have emerged at the forefront of optics and nanophotonics due to their exceptionally high quality-factors and unique topological characteristics. Advances in design capabilities,nanofabrication and characterization have enabled precise control of BIC resonances at subwavelength scale, unlocking exciting opportunities for applications in diverse areas such as lasing, optical sensing and nonlinear optics. The integration of phase-change materials and liquid crystals has facilitated dynamic control over light emission and absorption. In this Review, we provide a comprehensive overview of the latest progress in BIC research, covering both foundational concepts and recent advances. We begin with the underlying physics and highlight emerging design strategies, including machine learning and inverse design approaches. We discuss major breakthroughs in super-BICs, chiral BICs, intriguing concepts of flatband BICs and Moiré BICs, along with exotic phenomena, such as strong light-matter interaction, ultrafast dynamics and exceptional points. We further review the recent advancements and key challenges in BIC-enabled applications. Finally, we offer our perspectives on the promising future of BIC in fundamental research emphasizing emerging directions such as multilayer metasurfaces, interfacing BICs with quantum emitters, new capabilities enabled by advanced fabrication and design, and pathways towards scalable integration into photonic BIC metadevices. 展开更多
关键词 bound state in the continuum metasurfaces meta-devices nanophotonics optoelectronics
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Eliminating Schottky Barrier via interface state manipulation on phase-tailored 2D/3D perovskite solar cells 认领 引用
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作者 Junmin Xia Hao Gu +15 位作者 Ziyi Wang Mengting Chen Hui Hong Zhifeng Li Bo Cai Kun Cao Jia Guo Guangbao Wu Ke Guo Shengwen Li Annan Zhu Shi Chen Yongqing Cai Chao Liang Shufen Chen Guichuan Xing 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第1期760-769,I0017,共10页
Surface passivation via two-dimensional(2D)perovskite has emerged as a promising strategy to enhance the performance of perovskite solar cells(PSCs)due to the effective compensation of interfacial states.However,the i... Surface passivation via two-dimensional(2D)perovskite has emerged as a promising strategy to enhance the performance of perovskite solar cells(PSCs)due to the effective compensation of interfacial states.However,the in situ grown 2D perovskite passivation layers typically comprise a mixture of multiple dimensionalities at the interface,where band alignment has only been portrayed qualitatively and empirically.Herein,the interface states for precisely phase-tailored 2D perovskite passivated PSCs are quantitatively investigated.In comparison to traditional passivation molecules,2D perovskite layers based on 4-trifluoromethyl-phenylethylammonium iodide(CF3PEAI)exhibit an increased work function,introducing desirable downward band bending to eliminate the Schottky Barrier.Furthermore,precisely phase-tailored 2D layers could modulate the interface trap density and energetics.The n=1 film delivers optimal performance with a hole extraction efficiency of 95.1%.The optimized n-i-p PSCs in the two-step method significantly improve PCE to 25.40%,along with enhanced photostability and negligible hysteresis.It highlights that tailoring in the composition and phase distribution of the 2D perovskite layer could modulate the interface states at the 2D/3D interface. 展开更多
关键词 Perovskite solar cells Interface states Band alignment Phase tailoring
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