Publications (52)
Direct Visualization of Irreducible Ferrielectricity in Crystals
Kai Du, Lei Guo, Jin Peng +12
In solids, charge polarity can one-to-one correspond to spin polarity phenomenologically, e.g. ferroelectricity/ferromagnetism, antiferroelectricity/antiferromagnetism, and even di…
Application-Driven Synthesis and Characterization of Hexagonal Boron Nitride on Metal and Carbon Nanotube Substrates
Victoria Chen, Yong Cheol Shin, Evgeny Mikheev +6
Hexagonal boron nitride (h-BN) is unique among two-dimensional materials, with a large band gap (~6 eV) and high thermal conductivity (>400 W/m/K), second only to diamond among ele…
AMSnet-q: Unsupervised Circuit Identification and Performance Labeling for AMS Circuits
Ze Zhang, Junzhuo Zhou, Yichen Shi +6
Analog and mixed-signal (AMS) circuit design remains heavily reliant on expert knowledge. While recent AI-driven automation tools can generate candidate topologies, they critically…
Evaluating the electron density model by applying an imaginary modification
Hui Li, Meng He, Ze Zhang
A function has been proposed to evaluate the electron density model constructed by inverse Fourier transform using the observed structure amplitudes and trial phase set. The strate…
Dimensional cross-over of the bandgap transition in quasi-two-dimensional MoS2
Jinhua Hong, Kun Li, Chuanhong Jin +3
The anisotropy of the electronic transition is an important physical property not only determining the materials' optical property, but also revealing the underlying character of t…
An Improved Grey Wolf Optimizer Inspired by Advanced Cooperative Predation for UAV Shortest Path Planning
Zuhao Teng, Qian Dong, Ze Zhang +5
With the widespread application of Unmanned Aerial Vehicles (UAVs) in domains like military reconnaissance, emergency rescue, and logistics delivery, efficiently planning the short…
TextShield: Beyond Successfully Detecting Adversarial Sentences in Text Classification
Lingfeng Shen, Ze Zhang, Haiyun Jiang +1
Adversarial attack serves as a major challenge for neural network models in NLP, which precludes the model's deployment in safety-critical applications. A recent line of work, dete…
Pulsed Laser Ejection of Single-Crystalline III-V Solar Cells From GaAs Substrates
Benjamin A. Reeves, Myles A. Steiner, Thomas E. Carver +3
Like many optoelectronics, the highest quality III-V solar cells start out as thin single-crystalline multilayers on GaAs substrates. Separating these device layers from their grow…
Towards High Fidelity Face Relighting with Realistic Shadows
Andrew Hou, Ze Zhang, Michel Sarkis +3
Existing face relighting methods often struggle with two problems: maintaining the local facial details of the subject and accurately removing and synthesizing shadows in the relit…
Inversion Domain Boundary Induced Stacking and Bandstructure Diversity in Bilayer MoSe2
Jinhua Hong, Cong Wang, Hongjun Liu +9
Interlayer rotation and stacking were recently demonstrated as effective strategies for tuning physical properties of various two-dimensional materials. The latter strategy was mos…
Image definition evaluation functions for X-ray crystallography: a new perspective on the phase problem
Hui Li, Meng He, Ze Zhang
The core theme of X-ray crystallography is reconstructing the electron density distribution of crystals under the constraints of observed diffraction data. Nevertheless, the recons…
Direct identification of monolayer rhenium diselenide by an individual diffraction pattern
Zhen Fei, Ching-Hwa Ho, Fang Lin +3
In the current extensive studies of transition metal dichalcogenides (TMDCs), compared to hexagonal layered materials, like graphene, hBN and MoS2, low symmetry layered 2D crystals…
Measuring the Unique Identifiers of Topological Order Based on Boundary-Bulk Duality and Anyon Condensation
Yong-Ju Hai, Ze Zhang, Hao Zheng +3
A topological order is a new quantum phase that is beyond Landau's symmetry-breaking paradigm. Its defining features include robust degenerate ground states, long-range entanglemen…
Chemical-disorder-caused Medium Range Order in Covalent Glass
Xianqiang Liu, Xianbin Li, Xinyang Wang +5
How atoms in covalent solids rearrange over a medium-range length-scale during amorphization is a long pursued question whose answer could profoundly shape our understanding on amo…
A Novel Strategy to Strengthen Directionally Solidified Superalloy Through Grain Boundary Simplified Design
Yunpeng Fan, Xinbao Zhao, Yu Zhou +4
Conventional strategies for enhancing creep resistance often rely on grain boundary strengthening, yet this approach can inadvertently promote premature grain boundary fracture. Th…
Atomic process of oxidative etching in monolayer molybdenum disulfide
Danhui Lv, Hulian Wang, Dancheng Zhu +5
The microscopic process of oxidative etching of two-dimensional molybdenum disulfide (2D MoS2) at an atomic scale is investigated using a correlative TEM-etching study. MoS2 flakes…
Challenging Dataset and Multi-modal Gated Mixture of Experts Model for Remote Sensing Copy-Move Forgery Understanding
Ze Zhang, Enyuan Zhao, Yi Jiang +2
The Remote Sensing Copy-Move Question Answering (RSCMQA) task focuses on interpreting complex tampering scenarios and inferring the relationships between objects. Currently, public…
Capture the growth kinetics of CVD growth of two-dimensional MoS2
Dancheng Zhu, Haibo Shu, Feng Jiang +6
Understanding the microscopic mechanism of chemical vapor deposition (CVD) growth of two-dimensional molybdenum disulfide (2D MoS2) is a fundamental issue towards the function-orie…
Refined Geometry-guided Head Avatar Reconstruction from Monocular RGB Video
Pilseo Park, Ze Zhang, Michel Sarkis +3
High-fidelity reconstruction of head avatars from monocular videos is highly desirable for virtual human applications, but it remains a challenge in the fields of computer graphics…
AdapSCA-PSO: An Adaptive Localization Algorithm with AI-Based Hybrid SCA-PSO for IoT WSNs
Ze Zhang, Qian Dong, Wenhan Wang
The accurate localization of sensor nodes is a fundamental requirement for the practical application of the Internet of Things (IoT). To enable robust localization across diverse e…
The Tian Pseudo-Atom Method
Hui Li, Meng He, Ze Zhang
In this work, the authors give a new method for phase determination, the Tian pseudo atom method (TPAM) or pseudo atom method (PAM) for short. In this new method, the figure of mer…
Copy-Move Forgery Detection and Question Answering for Remote Sensing Image
Ze Zhang, Enyuan Zhao, Di Niu +3
Driven by practical demands in land resource monitoring and national defense security, this paper introduces the Remote Sensing Copy-Move Question Answering (RSCMQA) task. Unlike t…
In-situ fabrication of Mo6S6 nanowire terminated edges in monolayer molybdenum disulfide
Wei Huang, Xiaowei Wang, Xujing Ji +2
Edge structures are highly relevant to the electronic, magnetic and catalytic properties of two-dimensional (2D) transition metal dichalcogenides (TMDs) and their one dimensional (…
Ni/Ni3C Core-Shell Nanochains and Its Magnetic Properties: One-Step Synthesis at low temperature
Wei Zhou, Lin He, Rongming Wang +5
One-dimensional Ni/Ni3C core-shell nanoball chains with an average diameter by around 30 nm were synthesized by means of a mild chemical solution method using a soft template of tr…
Nanoscale Origins of the Damage Tolerance of the High-Entropy Alloy CrMnFeCoNi
ZiJiao Zhang, MM Mao, Jiangwei Wang +6
Damage-tolerance can be an elusive characteristic of structural materials requiring both high strength and ductility, properties that are often mutually exclusive. High-entropy all…
FedEdge AI-TC: A Semi-supervised Traffic Classification Method based on Trusted Federated Deep Learning for Mobile Edge Computing
Pan Wang, Zeyi Li, Mengyi Fu +3
As a typical entity of MEC (Mobile Edge Computing), 5G CPE (Customer Premise Equipment)/HGU (Home Gateway Unit) has proven to be a promising alternative to traditional Smart Home G…
Optical Pin Beams: Research Progresses and Emerging Applications
Ze Zhang, Hongwei Jiang, Hongyue Xiao +5
Optical pin beams (OPBs) represent a novel class of structured light fields engineered for resilient, long-distance propagation. Their exceptional stability and strong resistance t…
Layer-dependent anisotropic electronic structure of freestanding quasi-two-dimensional MoS
Jinhua Hong, Kun Li, Chuanhong Jin +3
The anisotropy of the electronic transition is a well-known characteristic of low-dimensional transition-metal dichalcogenides, but their layer-thickness dependence has not been pr…
AMSbench: A Comprehensive Benchmark for Evaluating MLLM Capabilities in AMS Circuits
Yichen Shi, Ze Zhang, Hongyang Wang +10
Analog/Mixed-Signal (AMS) circuits play a critical role in the integrated circuit (IC) industry. However, automating Analog/Mixed-Signal (AMS) circuit design has remained a longsta…
Deriving phosphorus atomic chain from few-layer black phosphorus
Zhangru Xiao, Jingsi Qiao, Wanglin Lu +6
Phosphorus atomic chains, the utmost-narrow nanostructures of black phosphorus (BP), are highly relevant to the in-depth development of BP into one-dimensional (1D) regime. In this…
3D Programming of Patterned Heterogeneous Interface for 4D Smart Robotics
Kewei Song, Chunfeng Xiong, Ze Zhang +5
Shape memory structures are playing an important role in many cutting-edge intelligent fields. However, the existing technologies can only realize 4D printing of a single polymer o…
Infrastructure-based Autonomous Mobile Robots for Internal Logistics -- Challenges and Future Perspectives
Erik Brorsson, Kristian Ceder, Ze Zhang +11
The adoption of Autonomous Mobile Robots (AMRs) for internal logistics is accelerating, with most solutions emphasizing decentralized, onboard intelligence. While AMRs in indoor en…
Detecting scrambling via statistical correlations between randomized measurements on an NMR quantum simulator
Xinfang Nie, Ze Zhang, Xiuzhu Zhao +3
Out-of-time-order correlator (OTOC), been suggested as a measure of quantum information scrambling in quantum many-body systems, has received enormous attention recently. The exper…
Proactive Local-Minima-Free Robot Navigation: Blending Motion Prediction with Safe Control
Yifan Xue, Ze Zhang, Knut à kesson +1
This work addresses the challenge of safe and efficient mobile robot navigation in complex dynamic environments with concave moving obstacles. Reactive safe controllers like Contro…
Dynamic Resilient Spatio-Semantic Memory with Hybrid Localization for Mobile Manipulation
Zhijie Yan, Shufei Li, Ze Zhang +3
Reliable mobile manipulation in dynamic indoor environments requires a scene representation that remains geometrically consistent, semantically queryable, and computationally bound…
PHKT:Personalized Dynamic Hypergraph-enhanced KAN-Transformer for Multi-behavior Sequential Recommendation
Ruijie Du, Hao Chen, Xin Zhang +5
In multi-behavior recommendation, auxiliary behaviors such as clicks, add-to-cart, and purchases can provide richer supervisory information for predicting target behaviors. Althoug…
Probing the anisotropic behaviors of black phosphorus by transmission electron microscope, angular-dependent Raman spectra and electronic transports measurements
Wanglin Lu, Xiaomeng Ma, Zhen Fei +4
In this work, we correlated the angular dependence of the Raman response of black phosphorus to its crystallographic orientation by using transmission electron microscopy and Raman…
Future-Oriented Navigation: Dynamic Obstacle Avoidance with One-Shot Energy-Based Multimodal Motion Prediction
Ze Zhang, Georg Hess, Junjie Hu +3
This paper proposes an integrated approach for the safe and efficient control of mobile robots in dynamic and uncertain environments. The approach consists of two key steps: one-sh…
Plasma-assisted fabrication of monolayer phosphorene and its Raman characterization
Wanglin Lu, Haiyan Nan, Jinhua Hong +7
There have been continuous efforts to seek for novel functional two-dimensional semiconductors with high performance for future applications in nanoelectronics and optoelectronics.…
Combining High Level Scheduling and Low Level Control to Manage Fleets of Mobile Robots
Sabino Francesco Roselli, Ze Zhang, Knut à kesson
The deployment of mobile robots for material handling in industrial environments requires scalable coordination of large fleets in dynamic settings. This paper presents a two-layer…
Grain Boundaries in Chemical Vapor Deposited Atomically Thin Hexagonal Boron Nitride
Xibiao Ren, Jichen Dong, Peng Yang +8
Large-area two-dimensional (2D) materials for technical applications can now be produced by chemical vapor deposition (CVD). Unfortunately, grain boundaries (GBs) are ubiquitously…
Non-neglectable entropy effect on sintering of supported nanoparticles
Beien Zhu, Shiyuan Chen, Ying Jiang +13
Sintering refers to particle coalescence by heat, which has been known as a thermal phenomenon involving all aspects of natural science for centuries. It is particularly important…
Engineered optical nonlinearities and enhanced light transmission in soft-matter systems with tunable polarizabilities
Weining Man, Shima Fardad, Ze Zhang +6
In this work, we demonstrate that the nonlinear response of certain soft-matter systems can be tailored at will by appropriately engineering their optical polarizability. In partic…
Topology Partitioning-based Self-Organized Localization in Indoor WSNs with Unknown Obstacles
Ze Zhang, Qian Dong
Accurate indoor node localization is critical for practical Wireless Sensor Network (WSN) applications, as Global Positioning System (GPS) fails to provide reliable Line-of-Sight (…
Hyper-sampling imaging
Ze Zhang, Hemeng Xue, Mingtao Shang +9
In our research, we have developed a novel mechanism that allows for a significant reduction in the smallest sampling unit of digital image sensors (DIS) to as small as 1/16th of a…
Experimental Observation of Equilibrium and Dynamical Quantum Phase Transitions via Out-of-Time-Ordered Correlators
Xinfang Nie, Bo-Bo Wei, Xi Chen +8
The out-of-time-ordered correlators (OTOC) have been established as a fundamental concept for quantifying quantum information scrambling and diagnosing quantum chaotic behavior. Re…
A highly sensitive, self-adhesive, biocompatible DLP 3D printed organohydrogel for flexible sensors and wearable devices
Ze Zhang, Kewei Song, Kayo Hirose +11
With the increasing demand for personalized health monitoring, wearable sensors have gained attention in medical diagnostics and physiological tracking. Hydrogels, known for their…
Photosensitive PEEK Ink Enables Digital Light Processing 3D Printed High-performance Small Architected-Plastics
Ze Zhang, Kewei Song, Rongyi Zhuang +6
Polyetheretherketone (PEEK), as a semi-crystalline high-performance engineering plastic, has demonstrated good application prospects since its introduction. The ability of PEEK to…
RAIL: An Accurate and Fast Angle-inferred Localization Algorithm for UAV-WSN Systems
Ze Zhang, Qian Dong
Location information is a fundamental requirement for unmanned aerial vehicles (UAVs) and other wireless sensor networks (WSNs). However, accurately and efficiently localizing sens…
Group frame neural network of moving object ghost imaging combined with frame merging algorithm
Da Chen, Shan-Guo Feng, Hua-Hua Wang +6
The nature of multiple samples to extract correlation information limits the applications of ghost imaging of moving objects. A novel multi-to-one neural network is proposed and th…
Gradient Field-Based Dynamic Window Approach for Collision Avoidance in Complex Environments
Ze Zhang, Yifan Xue, Nadia Figueroa +1
For safe and flexible navigation in multi-robot systems, this paper presents an enhanced and predictive sampling-based trajectory planning approach in complex environments, the Gra…
Collision-Free Navigation of Mobile Robots via Quadtree-Based Model Predictive Control
Osama Al Sheikh Ali, Sotiris Koutsoftas, Ze Zhang +2
This paper presents an integrated navigation framework for Autonomous Mobile Robots (AMRs) that unifies environment representation, trajectory generation, and Model Predictive Cont…