A5051907368- Microfluidic and Bio-sensing Technologies
- Micro and Nano Robotics
- Molecular Communication and Nanonetworks
- Energy Harvesting in Wireless Networks
- Orbital Angular Momentum in Optics
- Advanced Power Amplifier Design
- Wireless Power Transfer Systems
- Radio Frequency Integrated Circuit Design
- Vehicle Dynamics and Control Systems
- Microfluidic and Capillary Electrophoresis Applications
- Mechanical Engineering and Vibrations Research
- Electrowetting and Microfluidic Technologies
- Cellular and Composite Structures
- Advanced DC-DC Converters
- Artificial Immune Systems Applications
- Simulation and Modeling Applications
- Advanced Materials and Mechanics
- Structural Response to Dynamic Loads
- Automotive and Human Injury Biomechanics
- Microbial Inactivation Methods
- Thermal Analysis in Power Transmission
- Cancer Cells and Metastasis
- Modular Robots and Swarm Intelligence
- Tunneling and Rock Mechanics
- RFID technology advancements
University of Electronic Science and Technology of China
2017-2024
Xiangtan University
2021-2023
Beihang University
2016-2021
Shijiazhuang University
2018-2019
PLA Army Engineering University
2019
China University of Petroleum, East China
2018
Wuhan University
2017
Ordnance Engineering College
2016
Hunan University of Technology
2015
Shenyang Jianzhu University
2010
In this paper, a broadband continuous-mode Doherty power amplifier (CM-DPA) is realized taking advantage of the noninfinity output impedances peaking stage. Specifically, carrier PA designed DPA operates in continuous class-J mode when OFF-state, where impedance has some influences on PA. When transistor load variation versus presented contribution. The proposed method surmounts back-off drain efficiency deterioration DPAs at two side working bands through elaborately processing impedance....
Field‐controlled micro–nano manipulations and robots have attracted increasing attention in the fields of medicine, environment, engineering, energy due to their outstanding characteristics which include small size, strong controllability, cluster action, penetrability; thus, they gradually become an important research focus manufacturing vivo detection. However, precise control, targeted drug delivery vivo, cellular operation remain challenges. Herein, scientific results produced recent...
The hybrid continuous modes are constituted by a continuum of power amplifier (PA) between class-J and class-F. In this letter, phase shift parameter is introduced in the voltage waveform formula to generate complex fundamental harmonic load impedances, leading further extension on operation bandwidth. Based proposed theory, gallium nitride PA designed fabricated over frequency band 1.2-3.6 GHz. measured results show 60%-72% drain efficiency at saturated 40-42.2 dBm. addition, when driven...
The circular tube is one of the most widely used energy absorbers in structure crashworthiness. To improve absorption performance said tube, a foam-filled tri-tube proposed. Axial quasi-static crushing experiments are conducted to investigate characteristics tri-tube. Other configurations, such as empty single tubes, double tubes and tri-tubes, also tested for comparison with Results show that has better than other tubes. A finite element model developed perform parametric study on effect...
Anticipating tumor metastasis by circulating cells captured acoustic microstreaming.
We demonstrate a controllable bubble-based acoustofluidic device that enables mode-switchable manipulation of micro-objects, including transportation, rotation, and revolution.
The capability to precisely rotate cells and other micrometer-sized biological samples is invaluable in biomedicine, bioengineering, biophysics. We propose herein a novel on-chip cell rotation method using acoustic microstreaming generated by oscillating asymmetrical microstructures. When the vibration applied microchip with our custom-designed microstructures, two different modes of highly localized microvortices are that utilized achieve in-plane out-of-plane rotational manipulation...
Flexible magnetic small‐scale robots (overall dimensions smaller than 1 cm) can use a patterned magnetization profile to noninvasively access confined, enclosed liquid environment and therefore achieve applications in object manipulation or minimally invasive procedures. Existing magnetic‐controlled have shown wide usage for their high mobility higher degrees of freedom rigid counterparts. Herein, an octopus‐like soft robot is proposed potential biomedical engineering fields. First, control...
Non-contact manipulation technology has a wide range of applications in the and fabrication micro/nanomaterials. However, devices are often complex, operated only by professionals, limited single function. Here, we propose simple versatile optoelectronic tweezer (OET) system that can be easily controlled for manipulating microparticles with different sizes. In this work, designed established an system. The OET could used to manipulate particles sizes from 2 μm 150 μm. also micro-objects...
The precise rotational manipulation of cells and other micrometer-sized biological samples is critical to many applications in biology, medicine, agriculture. We describe an acoustic-based, on-chip method that can achieve tunable cell rotation. In acoustic field formed by the vibration a piezoelectric transducer, streaming was generated using specially designed, oscillating asymmetrical sidewall shape. also studied nature generation numerical simulations, our simulation results matched well...
This article proposes a receiver position estimation method suitable for multitransmitter(multi-TX)wireless power transfer systems from new perspective of machine learning. The novel uses the voltage and current transmitter side, is realized through self-learning, which can solve problems complex electromagnetic environment slow response in traditional method. First, switching criterion multi-TX wireless (WPT) system based on established. In addition, determined by comparing accuracy back...
The concept and connotation of the non-pneumatic tires were defined based on safety problems caused by punched bursted tire. types classified representative products introduced developing trends predicted. necessity feasibility with safety, versatility efficiency put forward discussed.
We propose an innovative design of millirobot, which can achieve donor cell suction, delivery, and injection in a mammalian oocyte on microfluidic chip. The millirobot body contains hollow space that produces suction ejection forces for the nuclei using nozzle at tip robot. Specifically, controller changes volume by balancing magnetic elastic membrane along with motion stages XY plane. A glass capillary attached to robot is able absorb inject nuclei. provides three degrees freedom generates...
The parameter fluctuations will lead to the frequency detuning problem of wireless power transfer (WPT) system, thus affecting transmission efficiency and output stability. traditional primary-side tuning method cannot realize full compensation secondary-side resonance parameters, double-side with data communication still exists a coupling problem. Therefore, in this article, we propose decoupling control for <italic xmlns:mml="http://www.w3.org/1998/Math/MathML"...
A dynamic deviation memory polynomial (DDMP) model for digital predistortion is proposed to compensate the non‐linear distortion of power amplifier. It based on and reduction‐based Volterra (DDRV) model. Compared DDRV model, shows better modelling accuracy under same complexity. The effectiveness DDMP has been verified by simulation experiment results.
Magnetically Actuated Millirobots In article number 1900148, Lin Feng and co-workers present an octopus-like soft robot which can move freely in 3D workspace without constraints. A magnetic control system using the minimum of coils, is inspired by regular tetrahedron structure, designed to propel robot.
In order to improve the traditional pneumatic rubber tire performance of puncture-proof, explosion prevention and environment adaptability, a main-auxiliary spring structure wheel was propesed.The new composed base on metal helical mutual woven interwined.By analyzed system structure,combined with radial force main when it contact ground,the mechanical model established its then static loaded.Finite element simulated, different structural parameters influence stiffness analyzed.