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Article
Screening current in ultra-high-field non-insulated superconducting magnets
Screening current is recognized as one of the critical elements limiting the progression of superconducting magnets toward achieving higher magnetic fields. Currently, most non-insulated (NI) superconducting m...
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Article
Achievement of a high-performance 30-tesla metal-as-insulated user superconducting magnet
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Article
Effect of Magnetic Field Configuration on Stray-Crystal Formation with Different Platform Sizes during Directional Solidification of Single-Crystal Superalloy
The magnetic field is an effective means to control the solidification structure and the defects of metal and semiconductor crystals. This work investigates the effects of Cusp magnetic field (CMF) and longitu...
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Article
Open AccessExploring the preparation of YbBa2Cu3O7−y superconductor in flowing oxygen atmosphere
REBCO has been used extensively as coated conductors applied to superconducting magnets due to its exceptional superconducting properties. As a REBCO superconductor, YbBa2Cu3O7−y (Yb123) has a low melting tempera...
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Article
Screening Current Behaviors of an Intra-Layer No-Insulation Magnet in Self Field and Background Field
A 500 MHz high temperature superconducting (HTS) and low temperature superconducting (LTS) hybrid NMR magnets with conduction cooling has been designed in the paper, in which the HTS insert magnet is designed ...
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Article
Study on the Arrangement of REBCO Double-Pancake Coils with Different Critical Currents in 30-T Superconducting Magnets
We have designed a 30-T superconducting magnet for important experimental facilities in condensed matter physics research. The critical current of rare-earth barium copper oxide (REBCO) tapes directly or indir...
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Chapter and Conference Paper
Electromagnetic Design of Bearingless Permanent Magnet Motor for Heart Pumps
To solve the stability problem of bearingless permanent magnet thin film motor rotor suspension for heart pumps, electromagnetic design and related simulation work of bearingless permanent magnet motor for hea...
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Chapter and Conference Paper
An Adaptive Mesh Method for Multi Physical Field Coupling of Electromagnetic Rail Launcher
The finite element calculation of EMRL (electromagnetic rail launcher) in 3D scale occupies a large physical memory. In order to obtain dynamic calculation results more economically, this paper proposes an ada...
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Article
Investigation of the Microstructure and Rolling Texture Evolution of Cu-45 at.% Ni Alloys during the Recovery Process by Quasi-In Situ Electron Backscatter Diffraction
The quasi-in situ electron backscatter diffraction method was used to investigate the microstructure and orientation evolution of Cu-45 at.% Ni alloy during the recovery process. For the first time, the “tripl...
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Article
Research on driving force of capsule endoscope in fluid
The capsule endoscope (CE) is widely used in the inspection of digestive tract diseases. Due to the tortuosity and complexity of the intestinal tract, the CE is difficult to move during the intestinal examinat...
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Article
Open AccessA sliding mode control of the bearingless permanent magnet slice motor for the blood pump based on the GAPSO
In this paper, we proposed a sliding mode control method for the bearingless permanent magnet slice motor for the blood pump based on the genetic particle swarm algorithm, which aims to solve the problems of s...
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Article
Preparation and Properties of NbTi–Nb3Sn–NbTi Superconducting Joints
NbTi–Nb3Sn–NbTi superconducting joints were fabricated by resistive welding. The microstructure and connecting status were estimated using an X-ray 3D microscopic imaging system online without destroying the join...
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Article
A Physiological Control Method Based on SMC and GAPSO for Artificial Heart Pumps to Maintain Pulsatility and Avoid Regurgitation and Suction
Artificial heart pumps are widely used for medical auxiliary blood supply, but the existing technology has some defects. To solve the problems of traditional artificial heart pumps, such as weak pulsation, eas...
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Chapter and Conference Paper
Physiological Control of Artificial Heart Pump Based on the Hierarchical Thought and the Fuzzy Algorithm
A multi-objective physiological control method of artificial heart pump based on hierarchical thinking and variable universe fuzzy algorithm is proposed in this paper. Its innovation lies in that the control s...
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Chapter and Conference Paper
CFD-Based Radial Thrust and Hemocompatibility Study of the Double-Volute Artificial Heart Pump
The third-generation magnetically levitated artificial heart pump uses magnetic force to achieve complete levitation of the rotor. In practice, artificial heart pump often works at the off-design operating con...
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Article
A Novel Pragmatic Magnetic Dam Structure for Ultra-high Field (>27 T) Superconducting Magnet
The magnetic dam (MD) is a promising passive protection method for high-temperature superconducting (HTS) magnets. Urgent problems remain to be resolved in order to put it into practice. This article deals wit...
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Article
A Novel Active Shim Coil Design Scheme for the Effective Imaging Region above the Patient Bed in MRI
In this paper, a novel active shim coil design scheme is proposed. In MRI, active shim coils are typically designed to correct the magnetic field inhomogeneity within the imaging region defined as the diameter...
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Chapter and Conference Paper
The Fabrication Technology and Test Results of the NbTi Superconducting Racetrack Magnets
Superconducting racetrack-shaped magnet was fabricated successfully, and the goal is to apply it to a superconducting undulator. The coil was wound with NbTi superconducting wires by dry winding followed by va...
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Article
Investigation of the polishing mechanism of magnetorheological elastic polishing composites
Computer-controlled ultra-precision polishing technology is widely used for high-quality surface processing. However, its polishing tool has some shortcomings, such as limited adaptability and more surface dam...
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Article
Strong Cube Texture Formation in Heavily Cold-Rolled Ni8W/Ni12W/Ni8W Composite Alloy Substrates Used in YBCO Coated Conductors
Three types of Ni8W/Ni12W/Ni8W composite substrates with strong cube texture, high yield strength, and low magnetization were produced by heavy cold rolling and annealing processes. The three types of composit...
