A5015603778- Optical Network Technologies
- Control and Dynamics of Mobile Robots
- Robotic Locomotion and Control
- Advanced Fiber Laser Technologies
- Semiconductor Lasers and Optical Devices
- Photonic and Optical Devices
- MXene and MAX Phase Materials
- Magnetic Properties and Applications
- Electric Motor Design and Analysis
- Force Microscopy Techniques and Applications
- Adhesion, Friction, and Surface Interactions
- Advanced materials and composites
- Advanced ceramic materials synthesis
- Orbital Angular Momentum in Optics
- Metallurgy and Cultural Artifacts
- Robot Manipulation and Learning
- Insect and Arachnid Ecology and Behavior
- Sports Dynamics and Biomechanics
- Iron-based superconductors research
- Bamboo properties and applications
- Tree Root and Stability Studies
- Semiconductor Quantum Structures and Devices
- Smart Grid Security and Resilience
- Prosthetics and Rehabilitation Robotics
- Soft Robotics and Applications
Shandong University of Science and Technology
2022-2025
Beijing Institute of Technology
2022-2025
Jiangsu University
2024
Harbin University of Science and Technology
2021-2023
Qingdao University
2019
Shanghai University
2014
Low-cost direct modulation detection (DM-DD) systems in optical communications are severely limited by transient chirps when adopting higher-order formats to meet the high-capacity transmission. To break through this constraint, a shaping current waveform technique combined with multi-level pulse amplitude (PAM) is proposed suppress chirp of directly modulated distributed feedback (DFB) lasers. This pre-compensation only requires simply changing injected waveform, which combination phase...
Inverse Kinematics of robots is a fundamental problem in robotics that involves calculating the joint angles robot to achieve desired end-effector position and orientation. Analytical solutions are generally used when robots’ configurations consistent. However, practical applications, different manufacturers may have varying base coordinates, end axis rotation directions, which limits generality analytical solutions. This paper introduces general framework for solving inverse solution with...
The stator and rotor can are added to the permanent magnet canned motor (PMCM) prevent core corrosion. losses accounts for about 40% of total losses, therewith temperature problems be brought in this kind motors. Based on this, accurate analytical calculation method magnetic field, PMCM is key rapid design motor. no-load field solved by subdomain method, harmonic density decomposed Fourier. Secondly, formula proposed based law electromagnetic induction. derived separate into each loss. Then,...
Abstract Advances in bionic technology have enabled quadruped robots to be more flexible. Numerous various forms specialize walking and trotting, whereas very few achieve high‐performance obstacle‐overcoming. A standing long jump obstacle‐overcoming robot is presented. By using two synchronous belts energy storage, this capable of jumping. flexible spine for the also presented storage shock absorption during Furthermore, control framework by establishing dynamic models single limb proposed....
The dynamic adhesive systems in nature have served as inspirations for the development of intelligent surfaces. However, mechanisms underlying rapid controllable contact adhesion observed biological never been adequately explained. Here, control principle unfolding footpads (alterable area) honeybees is investigated. can passively unfold, even without neuro-muscular reflexes, response to specific dragging activity (generating shear force) toward their bodies. This passive attributed...
Abstract Inspired by the dynamic wet adhesive systems in nature, various artificial surfaces have been developed but still face different challenges. Crucially, theoretical mechanics of adhesives has never sufficiently revealed. Here, we develop a novel mechanism for governing adhesion and investigate biological models honeybee arolium reproducing natural systems. Micro-nano structures arolium-prints were observed Cryogenic scanning electron microscopy (Cryo-SEM), air pockets found contact...
This paper presents an analytical model for predicting the magnetic field performance of permanent magnet synchronous motor with cutting. In order to satisfy boundary conditions, defective is equivalent a double-layer sector magnet, and size sector-shaped determined, this process obtained by circuit model. Then, divided into four sub-domains: inner sub-domain, outer air gap sub-domain stator slot sub-domain. Under solution harmonic decomposition flux density cogging torque several different...
Abstract The unique advantage of orbital angular momentum (OAM) provides a novel approach to breaking through the limitations high‐capacity and long‐distance transmission in conventional radio‐overfiber passive optical network (RoF‐PON) hybrid access network. Introducing OAM division multiplexing (OAM‐DM) based on Laguerre–Gaussian (LG) beams into RoF‐PON, an innovative multidimensional system architecture is proposed, which integrates with polarization‐division (PDM), wavelength‐division...
TiB2-Ti3AlC2 composite ceramics were fabricated by spark plasma sintering (SPS) technique. The effects of Ti3AlC2 additive on the densification, mechanical properties and resistance to high-temperature aluminum liquid erosion investigated, mechanisms densification highlighted, respectively. At temperature 1800 °C, pressure 40 MPa, holding time 10 min, TiB2 ceramic with wt.% acquired 98.9% 98.2% thermal shock resistance, 13.71 MPa∙m1/2 fracture toughness. in-situ decomposition was clearly...
Abstract The ability of quadruped robots to overcome obstacles is a critical factor that limits their practical application. Here, design concept and control algorithm are presented aim at enhancing the explosive force during jumping by utilizing elastic energy storage components. hind legs robot designed as units. Tension springs utilized components for storing installed in parallel structure on leg. Energy stored compression process robot’s torso released phase. optimal foot calculated...
Photons are captured by rhodopsin in rod outer segments, where they converted into an electrical signal. Modeling the light-sensitive behavior of rods can reveal their biophysical mechanisms. However, most cell models empirically based and lack meanings. In this paper, a model for cells on protein cascade transduction process ion channels is presented. Based biochemical phototransduction segment, describes formation photocurrent simulates response to different light stimuli. addition,...
The recently discovered superconductor UTe$_2$, with a T$_c$ between 1.5~K and 2~K, is attracting much attention due to strong suspicion of spin-triplet topological superconductivity. Its properties under magnetic field are also remarkable, field-reinforced field-induced superconducting phases. Here, we report the first complete thermodynamic determination phase diagram for fields applied along three crystallographic directions. Measurements were performed up 36~T hard magnetisation $b$~axis...
The measurement of microwave signals is great significance because carry important information in electronic warfare. However, conventional systems are not suitable for transient frequency measurements high-speed signals. A technique proposed and demonstrated based on frequency-power mapping. In this scheme, two optical carriers enter the phase modulator (PM) separately modulation. modulated transmitted to a photodetector through single-mode fiber. Besides, can be estimated by measuring...
The output characteristics of distributed feedback (DFB) lasers are greatly affected by different values the parameters in rate equations. However, there is a lack simple and feasible parameter extraction methods to determine these parameters. In this paper, straightforward method for modeling equivalent circuit model DFB laser based on equations presented which mainly combines those intrinsic into new that can be easily extracted from external performance laser. Before extraction,...
The chirp characteristics of directly modulated lasers (DMLs) are the major constraint on performance optical communication systems. However, studies DMLs typically focused binary-level modulation. An analysis is presented for during multilevel pulse amplitude modulation (PAM) to explore similarities and differences in behavior between DML applied two-level Simulation results transient adiabatic four-level, eight-level, sixteen-level PAM signals agree with analytical findings. Increasing...