A5101547664- Stroke Rehabilitation and Recovery
- Prosthetics and Rehabilitation Robotics
- Muscle activation and electromyography studies
- Advanced Algorithms and Applications
- Power Systems and Renewable Energy
- Advanced Sensor and Control Systems
- Soft Robotics and Applications
- Optical Systems and Laser Technology
- Robotic Mechanisms and Dynamics
- Advanced Fiber Optic Sensors
- Industrial Technology and Control Systems
- Advanced MEMS and NEMS Technologies
- Spinal Cord Injury Research
- Integrated Circuits and Semiconductor Failure Analysis
- Nanofabrication and Lithography Techniques
- Geophysics and Sensor Technology
- Laser-Plasma Interactions and Diagnostics
- Nanoparticles: synthesis and applications
- Vibration and Dynamic Analysis
- Dynamics and Control of Mechanical Systems
- Image and Video Stabilization
- Advancements in Photolithography Techniques
- Thin-Film Transistor Technologies
- Microplastics and Plastic Pollution
- Cavitation Phenomena in Pumps
China Academy of Railway Sciences
2024
Peking University
2024
Shanghai University
2012-2021
Southeast University
2009-2021
Kyoto University
2020
KLA (United States)
2017
Huazhong University of Science and Technology
2015-2016
Tu et al. show that Tff2 + corpus isthmus cells are TA progenitors, and they, not chief cells, the primary source of SPEM following injury. Upon Kras mutation, these progenitors directly progress to dysplasia, bypassing metaplasia, highlighting them as a potential origin gastric cancer. give rise secretory cells. after Kras-mutant metaplasia. Multi-omics analysis reveals distinct trajectories for Pyloric also known spasmolytic polypeptide-expressing metaplasia (SPEM), arises in response...
In order to meet the requirement of high efficiency and low NOx emission combustion coal-fired boiler, two constrained optimization objectives were designed based on practical requirement, one was that maximization boiler under constraint, other minimization a good performance. Considering complexity response characteristics modeling about emission, hybrid particle swarm with invasive weed (IW-PSO) proposed optimize objective functions. IW-PSO, (PSO) (IWO) integrated in parallel form, after...
In this paper, an adaptive fuzzy sliding mode control approach which combines with the control, is applied for tracking of pneumatic muscle actuator (PMA). This widely used in rehabilitation robots while hard to due its strong nonlinearity. The switching-type term law approximated by a system. Based on Lyapunov theory, stability closed-loop PMA system can be guaranteed. Both simulation and experimental studies were carried out verify proposed methods. experiments conducted real system, was...
In trenchless detection of underground pipelines, a method has been introduced which employs Fiber Bragg Grating (FBG) sensors to detect curvatures the pipeline at discrete points and reconstructs spatial trajectory by means newly developed approach. measuring curvature, FBG sensor may be twisted besides sustaining bending deformation. This paper proposes new algorithm for curvature calculation points, considering both overall revolving partial twisting in order enhance curve fitting...
To prevent premature convergence frequently appeared in the particle swarm optimization (PSO) for complex and highly nonlinear relationship between system inputs output(s), an improved was proposed, named with invasive weed (IW-PSO). In IW-PSO, PSO IWO were integrated parallel form based on powerful local search ability of (IWO), after some iterations, more diversiform adaptive weeds introduced improving diversity, worse particles comparing fitness best previous position partly mutated...
Relative internal efficiency is an important economic index which reflects characteristics of flow passage equipments turbine. This paper analyzed the concepts relative and cylinder efficiency, deduced relation-model for them. On one hand, new method was put forward to calculate efficiency. other this model could also represent influence on turbine economy In order certify model, data design-condition were used find law coefficients, real-time experiment-data applied model. Calculation...
As the Extreme Ultraviolet (EUV) lithography ecosystem is being actively mapped out to enable sub-7nm design rule devices, there an immediate and imperative need identify EUV reticle (mask) inspection methodologies [1]. The introduction of additional particle sources due vacuum system potential growth haze defects or other film depositions on reticle, in combination with pellicle uncertainty pose unique challenges when compared 193i reticles. reticles are typically inspected optical...
This paper reports optimization of electrode arrangement piezoelectric disk gyroscope using single crystal lithium niobate (LN). The was fabricated from a 155°-Y cut LN wafer in which the elastic compliance is uniform any in-plane directions to realize mode-matching two wineglass modes for operation. To mitigate anisotropic properties wafer, patterns on both sides were optimized. For 45°-mode operation, eight segmented electrodes designed by considering opposite polarity transverse constants...
In this paper we present a parallel robot with flexure hinges for target alignment system of high power laser facility. The contains mechanism 6 DOF which has nanometer positioning accuracy and is driven by six linear actuators. We design new hinge higher accuracy, strong environmental suitability simple structure compared conventional backlash friction issues. kinematics analysis the also discussed. simulation done ADAMS. proved meeting requirements comparing results theory simulations.
In traditional iatrical method, the patients with hemiplegia were assisted mainly by medical personnel to complete rehabilitation training. To make work easily and improve effect of training, robot was adopted. And control system a four DOF upper limb designed based on impedance assist training after kinematic kinetic analysis finished. Then finished analysis, simulation, experiment monarticular movement multiarticulate analyzing algorithm tested system. The can realize passive which...
Continuous Passive Motion (CPM) has been confirmed as an effective clinical therapy for finger neurological rehabilitation. In this study a rehabilitation training robot is designed based on CPM theory. This paper presents the design and simulation of robot. Based structure movement trajectory analysis, OPTOTRAK CERTUS motion capture system used to acquire parameters normal human movement. Atlas method employed accomplish mechanism dimensional synthesis The feasibility verified using...
In order to improve the effect of smooth motion, impedance control is introduced into system walking rehabilitation training robot. An strategy for active model proposed and analyzed, an adaptive algorithm on that basis. The experimental tests three methods including PD position servo control, adaption are implemented robot prototype. results show can continuously adjust its gait trajectory according human-robot interaction force meet expected characteristics under latter two strategies....
Robot-assisted rehabilitation training on a treadmill is popular research direction in recent years. And it will replace the artificial to become major method for patients with lower limb action impairments. However, existing system, run constant speed. It has change speed manually rather than adjust according patients’ active consciousness. In paper, we proposed adaption control Lower Limb Rehabilitation Robot. A pull pressure sensor used detect human’s movement trends. The data are...
In this paper, we intend to design a force-feedback device that meets the requirements in workspace. First, based on modified Delta mechanism, introduced chain offset angle is defined as alpha. We established positive and inverse kinematics model by vector method. According formula, envelope body equation of single-open-chain subspace was deduced. drew geometric shape under three situations while L1 more than or equal less L2. Then influence alpha whole workspace mechanism size deeply...
This paper introduces a MEMS wet etching process simulation platform based on adaptive octree level set method (LSM). Under the limited memory, mesh technique for can solve problem of with large scale, high aspect ratio and fine structure. The grid is nonuniform, advanced interpolation technology accurately obtain signed distance value neighbor grid. An also proposed to solving this problem. Finally, LSM applied C-plane sapphire process. results indicate that improve calculation accuracy,...
This paper first analyzed the significance and different arithmetic for exhaust enthalpy. Then influences of relative factors on enthalpy were respectively foundation energy balance theory in thermal system. A new calculation strategy was put forward, combined with regularity wet steam region advantage other arithmetic. Initial values gained by curve extrapolation method this strategy, which also applied pressure ratio last stage efficiency groups region. Thermal iterative calculating,...
The focusing Mechanism is an important component of Final Optic Assembly (FOA) in ICF facility. In this paper, mechanism structure and factors that influence its targeting accuracy were discussed. impact the lens pose on when four cylindrical guides distributed 4×90°is studied. And it was compared with situation three isosceles triangle used. geometric model built to analyze target error caused by deformation front rear flat. end, calculated ANSYS. result shows deviation change minimized...
Walking rehabilitation training robot generally divided into exoskeleton and foot board robot. The purpose of this study is to develop a 6-DOF robot, measurement analysis the motion parameters ankle for people walking on treadmill. This paper introduces basic method get data based NDI capture instrument, screening fitting data, after these processes, then can law when results are very helpful design device formulation control strategy.
This article has been retracted by the publisher.
Oil whip, which is one of the typical types steam turbine failure, may lead to large amplitude vibration rotor and even catastrophic accident. In order prevent on-line eliminate oil researches on caused by whip its characteristics have been elaborated from two respects theory experiment. The causes formation mechanism analyzed, in certain conditions, a series experiments for experiment rig made. Illustrating summarizing results these change speed lubricant quantity. These could provide some...
Aiming at the characteristic of continuous calculation in on-line performance monitoring system power units, this paper analyzed dynamic property and inherent mechanism reheat unit load-changing procedure. In order to ensure accuracy calculation, real-time arithmetic models were put forward compared with conventional method study influence on index procedure, including momentum equation arithmetic, Flugel difference arithmetic. Real-time applied one 200MW verify evaluate its rationality...