Zhenwei Wu

ORCID: 0009-0003-1989-0373
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Research Areas
  • Robotic Locomotion and Control
  • Magnetic confinement fusion research
  • Soft Robotics and Applications
  • Soil Mechanics and Vehicle Dynamics
  • Robotics and Automated Systems
  • Superconducting Materials and Applications
  • Ionosphere and magnetosphere dynamics
  • Prosthetics and Rehabilitation Robotics
  • Petroleum Processing and Analysis
  • Control and Dynamics of Mobile Robots
  • Algal biology and biofuel production
  • Advancements in Battery Materials
  • Teleoperation and Haptic Systems
  • Polymer Surface Interaction Studies
  • Adaptive Control of Nonlinear Systems
  • Membrane Separation Technologies
  • Metal-Organic Frameworks: Synthesis and Applications
  • Advanced Surface Polishing Techniques
  • Membrane Separation and Gas Transport
  • Robot Manipulation and Learning
  • Biodiesel Production and Applications
  • Advanced Battery Materials and Technologies
  • Solar and Space Plasma Dynamics
  • Fusion materials and technologies
  • Iterative Learning Control Systems

Zhejiang University
2024

Chongqing Jiaotong University
2023

Shell (United States)
2023

Hunan University of Science and Technology
2023

Beijing Normal University
2022

Harbin Institute of Technology
2016

Peking University
2016

Chinese Academy of Sciences
2001-2014

State Key Laboratory of Robotics
2014

Shenyang Institute of Automation
2005-2014

Utilizing anionic redox activity within layered oxide cathode materials represents a transformational avenue for enabling high-energy-density rechargeable batteries. However, the oxygen reaction is often accompanied with irreversible dynamic evolution, leading to unfavorable structural distortion and thus severe voltage decay rapid capacity fading. Herein, it proposed validated that evolution can be effectively suppressed through synergistic surface CaTiO3 dielectric coating bulk...

10.1002/adma.202209556 article EN Advanced Materials 2022-12-09

Polyelectrolyte multilayer (PEM) capsules are promising candidates for many kinds of cancer detection and treatment but usually intended to deliver cargo specific sites or destroy cells based on photothermal effects from the outside. In this publication we prove that it is possible kill inside phagocytosed PEM capsules. addition show how open bring surface rapid evaporation water. Diffusion-based temperature determinations effect up water presented.

10.1021/acs.langmuir.5b04762 article EN Langmuir 2016-03-29

The instability of rock slope is still a very frequent geological disaster, which seriously affects people's life and production activities. Previous studies have mainly focused on deformation mechanism, prediction, control hard with single lithology, while there are limited the theoretic computational method stability for soft-hard interbedded anti-inclined strata. In this study, geomechanical model toppling failure soft-hard-interbedded established. modes soft strata analyzed, formula...

10.1038/s41598-023-28657-2 article EN cc-by Scientific Reports 2023-01-30

Abstract BACKGROUND Developing new materials for separating Sr 2+ ions from aqueous solutions is significant. Metal–organic frameworks are regarded as excellent adsorption due to their high specific surface area and abundant sites. In this work, a novel UiO‐66‐(COOH) 2 ‐based mixed matrix membrane (MMM) was prepared by combining with polyethersulfone (PES) . RESULTS The MMMs were characterized using scanning electron microscopy, Fourier transform infrared spectroscopy water contact angle...

10.1002/jctb.7335 article EN Journal of Chemical Technology & Biotechnology 2023-02-02

Boronization with carborane (C2B10H12) by ICRF has been applied routinely to the walls of HT-7 super-conducting tokamak for reduction impurity influx, especially carbon and oxygen. Significant suppression metallic impurities radiating power fraction are achieved. The improved confinement both particle energy is observed in full range operation parameters. Energy balance analysis shows that electron heat diffusion coefficient strongly reduced. Measurements Langmuir probes at edge plasma show...

10.1088/1009-0630/4/4/006 article EN Plasma Science and Technology 2002-08-01

This paper proposes an unscented Kalman filter(UKF) based steering controller to force underactuated nonlinear autonomous ships follow a reference path under constant disturbances induced by wave, wind and ocean-current. By using Nomoto ship model with maneuvering characteristics backstepping design methodology, is designed successfully. The UKF used update the estimation of uncertain parameters online avoid parameters' drift due time-varying added mass matrices. MATLAB simulation shows that...

10.1109/ical.2007.4338543 article EN 2007-08-01

Aimed at structure of humanoid robot and requirements for control performance, this paper designs realizes joint controller based on CAN bus, structures an effective credible system by connecting all controllers, force sensors, task management computer upper limbs together; the transmission audio video information wireless LAN; constitutes whole robot. Characteristics are simple structure, high reliability, good real-time, friendly human-machine interface. This includes mainly: overall...

10.1109/robio.2005.246277 article EN 2021 IEEE International Conference on Robotics and Biomimetics (ROBIO) 2005-01-01

Accurate needle insertion into soft, inhomogeneous tissue is a critical aspect of many medical problems, such as the percutaneous diagnosis and therapies. In procedures, flexible tip-steerable with bevel tips can deflect during reach target we set beforehand. 2D motion planning, it's crucial to maintain in desired plane. However, sudden change insertion, well unmeasurable state variables, gives us big problem keep tip desire plane accurately. this paper, order reduce deflection from its path...

10.1109/ccdc.2014.6852996 article EN 2022 34th Chinese Control and Decision Conference (CCDC) 2014-05-01

Wheeled mobile robots have been widely investigated and put into many applications such as planet surface exploration fields other rough terrain situations. Yaw calculation is of importance for to autonomously navigate control. Sensor-based methods calculating robot's yaw found their limits in the situations where sensor data are not sufficiently applicable or badly noised, especially robots. This paper proposed a novel model-based method an all-terrain robot with passively compliant...

10.1109/aim.2008.4601672 article EN IEEE/ASME International Conference on Advanced Intelligent Mechatronics 2008-07-01

Aiming at Humanoid Robot structure and requirement for control performance, this paper designs realizes joint controller based on CAN, structures an effective credible system by connecting controllers, force sensors harmonious level computer together. This includes mainly: overall of the system, design implement hardware software, topology bring forward some imaginations to enhance performance system.

10.1109/robio.2004.1521856 article EN 2005-10-24

The concept of ZMP was introduced. iterative computational method combining the effective Newton-Euler Algorithm with proposed. has clear physical interpretation, lower computation complexity, is easy to program and control. model wheel-based humanoid robot built using method. simplified equation given. Finally dynamic stability criterion degree were defined.

10.1109/ccdc.2009.5192727 article EN Chinese Control and Decision Conference 2009-06-01

Endogenous slippery lubricant-infused porous surfaces with excellent anti-icing properties are fabricated by one-step evaporation-induced phase separation.

10.1039/d3cc05932d article EN Chemical Communications 2024-01-01

The line-integrated optical measurement of impurity radiation profiles for the study light transport is performed in HT-7 tokamak. carbon line emissivity obtained by Abel inversion. radial behaviours impurities at different central averaged electron densities e are investigated ohmic discharges. diffusion coefficient Dk(r), convection velocity Wk(r) and total flux ions Γk decrease with increase e, which shows a reduction particle higher densities.

10.1088/1009-1963/14/12/027 article EN Chinese Physics 2005-11-30

For stable landing motion control of biped robot, a new method using switching is proposed. The robot with Magenetorhelogical damper based soft driving package. Vibration often occurs in the phase swing foot or unexpected contacting arising abruptly. residual vibration from ground reaction force decreases safety walking. Firstly, walking gait analyzed. Then introduced into joint structure to realize suppression by physical mean. And damping for described. Control elasticity and MR discussed....

10.1109/icinfa.2014.6932750 article EN 2014-07-01

Electron heat diffusivity inferred from the electron power balance was studied in ohmically heated plasma on an HT-7 tokamak. The results obtained before and after siliconization were compared it is found that reduced obviously half of outer region (r/a>0.5) siliconization, which reason why energy confinement improved siliconization.

10.1088/0256-307x/18/8/331 article EN Chinese Physics Letters 2001-07-11

The cross-field diffusion coefficient (D⊥) at the edge in HT-7 tokamak is close to Bohm value when line average electron density ranges from 1.5×1019 3.0×1019m−3. energy profile of particles derived directly Hα(Dα) shape; dissociative excitation molecules dominating local temperature above 10eV. By means Monte Carlo method theDα shape also simulated. We find that molecular dissociation contributes 57% neutral atoms and 53% emission intensity front limiter 85% 82% wall. influence atomic...

10.1088/1009-1963/13/9/025 article EN Chinese Physics 2004-09-01

For smooth operation of SCARA robot for wafer transition, a new method using magenetorhelogical damper vibration suppression is proposed. Vibration often occurs when the acceleration decrease or increase abruptly. Especially in end an period, residual decreases safety and extends settling time. Firstly, sources are analyzed. And dynamics model joint considering elasticity established. Magenetorhelogical introduced into structure to realize by physical mean. It could provide reliable...

10.1109/wcica.2014.7053771 article EN 2014-06-01

A vibration suppression method using switching control is proposed for smooth motion of SCARA robot in wafer transition. The composed joints integrated with magenetorhelogical damper. Vibration often occurs when acceleration jump abruptly, especially the end operation period. residual decreases safety and extends settling time. Firstly, sources driving are analyzed. Strategy by And dynamics model joint elasticity element established. Magenetorhelogical damper introduced into design structure...

10.1109/icinfa.2014.6932748 article EN 2014-07-01

The details of the special three-dimensional micro-nano scale ripples with a period hundreds microns on surfaces Zr-based and La-based metallic glass irradiated separately by single laser pulse are investigated. We use small-amplitude capillary wave theory to unveil ripple formation mechanism through considering each molten glasses as an incompressible viscous fluid. A generalized model is presented describe morphology, which fits experimental result well. It also revealed that viscosity...

10.1088/1674-1056/25/6/068104 article EN Chinese Physics B 2016-06-01

The main efforts of HT-7 superconducting tokamak are directed to quasi-steady state discharges and relevant physics. Significant progress has been realized in obtaining high-performance under a HT-7. long pulse have obtained with duration up more than one minute. Wall recycling studied the coefficient R each plasma increases time. uncontrolled density increase is accompanied by hydrogen impurity influx originating mainly from limiter surface parts inner vessel. edge after boronization will...

10.1088/1009-0630/7/4/006 article EN Plasma Science and Technology 2005-08-01

This study aims to produce renewable diesel and biopriviliged chemicals from microalgae that can thrive in wastewater environment. <i>Spirulina</i> (SP) was converted into biocrude oil at 300ºC for a 30-minute reaction time via hydrothermal liquefaction (HTL). Next, fractional distillation used separate SP-derived different distillates. It found 62% of the viscous be separated liquids about 270ºC (steam temperature distillation). Physicochemical characterizations, including...

10.26434/chemrxiv.9630695 preprint EN cc-by-nc-nd 2019-08-15
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