A5005008408- Piezoelectric Actuators and Control
- Vehicle Dynamics and Control Systems
- Advanced Sensor and Energy Harvesting Materials
- Iterative Learning Control Systems
- Electric and Hybrid Vehicle Technologies
- Force Microscopy Techniques and Applications
- Real-time simulation and control systems
- Advanced MEMS and NEMS Technologies
- Mechanical Engineering and Vibrations Research
- Innovative Energy Harvesting Technologies
- Hydraulic and Pneumatic Systems
- Conducting polymers and applications
- Tactile and Sensory Interactions
- Autonomous Vehicle Technology and Safety
- Advanced Control Systems Optimization
- Soft Robotics and Applications
- Corporate Finance and Governance
- Advanced machining processes and optimization
- Innovation and Knowledge Management
- Energy Harvesting in Wireless Networks
- Vehicle emissions and performance
- Wireless Power Transfer Systems
- Network Traffic and Congestion Control
- Advanced Combustion Engine Technologies
- Adhesion, Friction, and Surface Interactions
Nanjing Medical University
2025
Changchun University of Technology
2016-2025
Sun Yat-sen University
2021-2024
South China University of Technology
2018-2024
The First Affiliated Hospital, Sun Yat-sen University
2021-2024
Tianjin Centers for Disease Control and Prevention
2024
Tianjin University of Science and Technology
2020-2024
Zhejiang University
2015-2023
Union Hospital
2023
Zhejiang Chinese Medical University
2023
A trapezoid-type stick–slip piezoelectric linear actuator using a right circular flexure hinge mechanism was proposed, designed, fabricated, and tested with the aim of accomplishing driving based on motion. The angle adjustment trapezoid beam used for generating lateral motion foot mechanism. method tuning discussed. Based finite-element method, proper obtained. analysis results proved that asymmetrical can increase static friction force in slow extension stage decrease kinetic quick...
Persistently elevated glycolysis in kidney has been demonstrated to promote chronic disease (CKD). However, the underlying mechanism remains largely unclear. Here, we observed that 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3), a key glycolytic enzyme, was remarkably induced proximal tubular cells (PTCs) following ischemia-reperfusion injury (IRI) mice, as well multiple etiologies of patients with CKD. PFKFB3 expression positively correlated severity fibrosis. Moreover, CKD...
Shanghai has become an international shipping center in the world. In this study, multiyear measurements and high resolution air quality model with hourly ship emission inventory were combined to determine influence of emissions on urban Shanghai. The aerosol time-of-flight mass spectrometer (ATOFMS) carried out at site from April 2009 January 2013. During entire sampling time, most half-hourly averaged number fractions primary emitted particles varied between 1.0–10.0%. However, fraction...
Extant research shows that resources are significant to a firm's choice of alliance formation. We focus on an important form intangible resource—firm reputation—and examine how it affects propensity alliances. propose inverted U-shaped relationship between reputation and its likelihood formation, resulting from the opposing mechanisms opportunity need. also this may vary across two contingencies: (1) foreign domestic firms; (2) different levels institutional development. Empirical analyses...
A resonant/off-resonant hybrid excitation of a piezoelectric stick–slip actuator is proposed in this paper. It accomplished by resonant sinusoidal friction regulation wave (RSFR-wave) and an off-resonant saw-tooth (ORST-wave). The RSFR-wave applied to the rapid deformation stage ORST-wave. In stage, first-order longitudinal vibration mode stator can be obtained. By mode, kinetic between slider frictional rod obviously decreased utilizing ultrasonic reduction. backward displacement remarkably...
The smooth impact drive mechanism (SIDM) is a type of piezoelectric actuator that has been developed for several decades. As kind driving method the SIDM, traditional sawtooth (TS) wave always employed. kinetic friction force during rapid contraction stage usually results in generation backward motion. A regulation hybrid (FRH) realized by composite waveform motion restraint SIDM proposed this paper. composed (SD) and sinusoidal (SFR) which applied to deformation SD wave. prototype was...
During the gearshift management process, shift time and shock affect quality (smoothness efficiency) greatly. In this paper, a controller is designed using data-driven predictive control technique to improve of vehicles with dual-clutch transmission (DCT). It directly obtained from input-output data DCT model constructed by commercial software AMESim. order obtain an offset-free for reference input, predictor equation gained incremental input outputs. The conflicting requirements short small...
In the field of piezoelectric actuators, high speed stick-slip actuators have received considerable attention. A linear actuator is proposed in this article, which combines asymmetric flexure hinge with triangular displacement amplification mechanism. The designed can achieve at lower frequency. configuration and driving principle are illustrated by theory simulation. order to study its performance, a prototype fabricated, an experimental system established. results confirm that maximum step...
A piezoelectric stick–slip actuator with the inertial block structure is presented in an attempt to achieve smooth motion. Under asymmetric excitation, produces different inertia, which can dynamically change normal pressure between stator and rotor adjust friction. During slip stage, driving arm a deflection away from rotor, be eliminated, angular impulse of moment friction force on almost reduced zero. To verify feasibility prototype, finite-element method simulation performed. On basis...
The electronic nose system is widely used in tea aroma detecting, and the sensor array plays a fundamental role for obtaining good results. Here, optimization (SAO) method based on correlation coefficient cluster analysis (CA) proposed. First, distinguishing performance value (DPV) are calculated to eliminate redundant sensors. Then, independence obtained through number of sensors confirmed. Finally, optimized constructed. According results proposed method, green (LG), fried (LF) baked (LB)...
The smooth impact drive mechanism (SIDM) actuator is traditionally excited by a saw-tooth wave, but it requires large input voltages for high-speed operation and load capacity. To improve the output characteristic of SIDM operating at low voltage, novel driving method based on ultrasonic friction reduction technology proposed in this paper. A micro-amplitude sinusoidal signal with high frequency applied to rapid deformation stage traditional wave. can be realized composite waveform that...
This paper presents a lever-type stick-slip piezoelectric actuator based on the lever amplification principle. The proposed can achieve large strokes, high velocity, and bidirectional actuation with single stack. finite element simulation of flexible hinge is performed, designed prototype tested. When voltage 100 Vp-p, maximum forward velocity 7.69 mm/s under symmetry 20%. reverse 7.12 80%. displacement deviation within 10 cycles 0.88 μm, load reach 105 g.
High-performance grinding has been converted from traditional manual to robotic over recent years. Accurate material removal is challenging for workpieces with complex profiles. Over years, digital processing of shown its great potential in the optimization manufacturing processes and operational efficiency. Thus, quantification process an inevitable trend. This research establishes a three-dimensional model workstation designs blade back arc trajectory. A prediction depth (MRD) established,...
This paper examines the status of boundaries in organizational theory. Tacitly if not explicitly, most researchers view organizations as bounded, tightly coupled and more or less rational systems. Yet may also be open, loosely coupled, hierarchically nested systems whose are indefinite. In case China, incomplete separation firms from state, integration partial listing assets have left Chinese with indefinite boundaries. While many disadvantaged by boundaries, some managed their...
A symmetrical hybrid driving waveform (SHDW) is proposed in this paper, which includes a saw-tooth and sinusoidal friction regulation waveform, the applied to shrinkage period of waveform. In other words, SHDW can be achieved when symmetry method 50%. The effectively drive designed linear piezoelectric stick-slip actuator, motion direction also easily regulated. excitation principle actuator excited by explained detail. prototype fabricated experimental investigations characteristics are...
This article presented a new type of stick-slip piezoelectric actuator based on an asymmetrical flexure hinge driving mechanism. The key the mechanism was four-bar with different minimum thicknesses right-circle hinges. Combined symmetrical indenter, generated controllable tangential displacement by changing locking force. Therefore, simple structured achieved considerable improvements especially in output speed and efficiency. In order to obtain improved properties, mechanism, normal...