A5101970806- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Engineering Applied Research
- Biomimetic flight and propulsion mechanisms
- Nuclear Physics and Applications
- Hepatitis B Virus Studies
- Magnetic confinement fusion research
- Hepatitis C virus research
- Aerospace Engineering and Energy Systems
- Micro and Nano Robotics
- Advanced DC-DC Converters
- Sperm and Testicular Function
- Topology Optimization in Engineering
- Pulsed Power Technology Applications
- Viral Infections and Outbreaks Research
- Vacuum and Plasma Arcs
- Modular Robots and Swarm Intelligence
- Robotic Locomotion and Control
- Fish Ecology and Management Studies
- Electrical Fault Detection and Protection
- Plasma Applications and Diagnostics
- Piezoelectric Actuators and Control
- Soft Robotics and Applications
- Fluid Dynamics and Turbulent Flows
Yanshan University
2022-2023
TRIUMF
2020-2023
Henan Agricultural University
2023
Huazhong University of Science and Technology
2015-2018
Soochow University
2017
Beihang University
2009-2013
This paper proposed a new method of designing flexible biomimetic fish propelled by oscillating pectoral fins. The molding soft body is adopted in the robotic fish. Pneumatic artificial muscles are utilized as driving sources and two ribs with distributed flexibility main parts propulsive mechanism. leading edge locomotion profile fin air studied experimentally, flapping water observed too. Finally, effectiveness illustrated experiment. It shows that can realize self-driven, it swim at speed...
Occult hepatitis B virus infection (OBI) is an important risk factor of liver cirrhosis and hepatocellular carcinoma. Type 1 interferon (IFN) signaling-related miRNAs were significantly associated with (HBV) infection. However, the characteristics serum IFN in OBI remain unclear. Therefore, this study aimed to analyze expression levels evaluate their potential values for diagnosis. Twenty samples training test (10 healthy controls 10 patients) 438 validation from controls, asymptomatic HBsAg...
Cownose rays have excellent characteristics as the fish with oscillating pectoral fins. Therefore, in order to construct bionic prototype high efficiency, low noise and stability characteristics, cownose is chosen research. In paper, simplified flapping kinematic model established based on study of characteristic cow rays' The mechanism motion feature Robo-rayI-IV generation robotic mimicking are summarized, shortcomings current design analyzed. Then, optimization ideas heaving pitching...
The conventional Si-based semiconductors suffer from low switching frequency, high conduction loss and efficiency. These shortcomings hinder the improvement of power electronic converter performance. An attractive solution is to replace semiconductor devices with wide-bandgap based on gallium-nitride material. In terms step-down converters which are used for hydrogen energy systems, it difficult traditional buck circuit eliminate output current ripple achieve fault-tolerant operation....
Abstract Compact H - cyclotrons are used all across the globe to produce medical isotopes. Machines with external ion sources have demonstrated average extracted currents on order of a few mA, although reported operational numbers typically around 1 mA or below. To explore possibility extracting even more current from such cyclotrons, it is important understand mechanisms that drive intensity limits and how they scale. In this paper we review some key aspects beam dynamics in central region...
Abstract The linear coupling resonance ν r - z = 1 in a cyclotron is driven by the first harmonic radial gradient of magnetic field. In TRIUMF 500 MeV cyclotron, this encountered multiple times. When circulating beam off-centred radially passing through resonance, betatron oscillation can be converted into vertical oscillation, which cause losses and radio-activation. We investigated with goal to correct it using available correction coils. Moreover, we improved tune measurement trim coils...
Pectoral foil structure and motion discipline of cow-nosed ray as nature prototype is analyzed. A bionic pectoral fin designed according to the analysis results. Propulsion performance at sinusoidal law studied experimentally on a towing platform, oscillating frequency from 0.2 Hz 2 amplitude 2.5° 30°. Well driving ability obtained, maximal average thrust 2.75N achieved by single expressed speed 10 cm/s. biomimetic fish utilizing kind developed, swimming 0.9BL (body length) in maximum can be reached.
This paper aims to build a robotic fish propelled by two oscillating pectoral fins. The prototype is designed dorsoventrally flattened and streamlined body mimicking the shape of Cownose Ray. To realize similar flapping motion nature fish, new bionic foil which combines active passive deformation abilities initially proposed. A spatial parallel mechanism (SPM) actively control near fin root. skeleton with distributed flexibility built obtain deformation. verify feasibility this design...
Passive magnetic channel is a kind of beam focusing elements in cyclotron. It consists several soft iron bars that are magnetized by the main field In this paper, we proposed topology optimization method to design pole shape passive channel, does not require any fixed geometry pattern or initial design. The nonlinear static finite-element analysis model used calculate objective function. Persuade material with variable density describe distribution during iteration. Method Moving Asymptotes...
Hermetically sealed electromagnetic relays or contactors with high DC switching capacity, smaller size and longer lifespan are getting more important nowadays due to rapid developments of renewable energy installations electrical vehicles. However, reports on contact welding resistances, arc durations other related characteristics in DC200-1000VDC load ranges quite few. In this paper, experiments were conducted CuW70 CuMo85 contacts the following conditions: power voltage 200 500V, current...
Beam uniformity of electron irradiation accelerator has a great impact results for industrial radiation process. In this paper, beam detector, based on Faraday cup array, been designed 400KV in Huazhong University Science and Technology. Suitable structure calculated the secondary electrons emission. Cooling system is necessary detector condition highintensity ion beams, it by thermostructural analysis. This now used experiments successfully.
High-voltage electron accelerator is widely used in irradiation processing industry. Beam uniformity of the has very important impact on quality irradiated products. Accurate measurement beam helps to improve product and production efficiency. In this paper, detection device designed based Faraday cup array followed by signal shaping circuit digital system. Finally, computer offers friendly interface help users understand operating state information. This uses DSP technology process optical...