Superconducting electrode capacitor based on double-sided YBCO thin film for wireless power transfer applications

He, Yingda; Wang, Yu; Hu, Yanwen; Chen, Weirong; Yan, Zhongming

doi:10.1088/1361-6668/aaebd8

Cited by 14 publications

(8 citation statements)

References 27 publications

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“…Due to the low loss and large critical current density properties of high-temperature superconducting (HTS) materials, superconducting WPT systems with HTS coils have been found to be more efficient and have been considered as a potential charging tool for electric vehicles [14][15][16]. By introducing high-Q HTS electrode capacitors to form superconducting LC-resonators (consisting of an inductance and a capacitor), those systems can be improved further [17][18][19]. However, the superconducting resonators reported so far have no frequency-tuning functionality because of the fixed capacitance of developed capacitors.…”

Section: Introductionmentioning

confidence: 99%

A tunable superconducting LC-resonator with a variable superconducting electrode capacitor bank for application in wireless power transfer

He¹,

Wang²,

Yan³

2019

Supercond. Sci. Technol.

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The frequency alignment of resonators is essential for wireless power transfer (WPT) systems to achieve strongly coupled magnetic resonances. Here, we present a novel tunable superconducting resonator for WPT applications. The tunable resonator is composed of a high-temperature superconducting (HTS) coil and a variable HTS electrode capacitor bank based on two series YBa2C3O7−x–SrTiO3–YBa2C3O7−x thin films. The HTS coil serves as a wireless transmitting tool for power delivery, while the HTS electrode capacitor bank provides a frequency-tuning element for the resonator. At 77 K, the HTS materials cause low loss and thus achieve a high quality factor, while the incipient ferroelectric SrTiO3 substrate with HTS electrodes has a nonlinear capacitance dependence on the applied electric field with no hysteresis. A voltage supply applies a continuous DC bias to both capacitors synchronously via the coil, adjusting the total capacitance and thus the resonant frequency. Our results indicate that the tunable resonator can achieve a tuning range of 12% from 775 kHz, offering a frequency-tuning functionality to superconducting WPT technology.

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Section: Introductionmentioning

confidence: 99%

A tunable superconducting LC-resonator with a variable superconducting electrode capacitor bank for application in wireless power transfer

He¹,

Wang²,

Yan³

2019

Supercond. Sci. Technol.

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“…Therefore, transcriptomics is the key to investigating gene function in targeted physiological mechanisms qualitatively and quantitatively [ 57 ]. Detecting hormetic stimulation at the transcript level can be achieved by analyzing the differential expression of known genes on small (~20) [ 58 , 59 , 60 ] and very large scales using microarray technology (~50,000) [ 61 ] or by completely sequencing the RNA from a sample as in next-generation and third-generation sequencing [ 62 , 63 , 64 ].…”

Section: Data In Plant Hormesis Researchmentioning

confidence: 99%

Machine Learning for Plant Stress Modeling: A Perspective towards Hormesis Management

Rico-Chávez

Franco²,

Fernandez‐Jaramillo³

et al. 2022

Plants

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Plant stress is one of the most significant factors affecting plant fitness and, consequently, food production. However, plant stress may also be profitable since it behaves hormetically; at low doses, it stimulates positive traits in crops, such as the synthesis of specialized metabolites and additional stress tolerance. The controlled exposure of crops to low doses of stressors is therefore called hormesis management, and it is a promising method to increase crop productivity and quality. Nevertheless, hormesis management has severe limitations derived from the complexity of plant physiological responses to stress. Many technological advances assist plant stress science in overcoming such limitations, which results in extensive datasets originating from the multiple layers of the plant defensive response. For that reason, artificial intelligence tools, particularly Machine Learning (ML) and Deep Learning (DL), have become crucial for processing and interpreting data to accurately model plant stress responses such as genomic variation, gene and protein expression, and metabolite biosynthesis. In this review, we discuss the most recent ML and DL applications in plant stress science, focusing on their potential for improving the development of hormesis management protocols.

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“…al [10] have proposed that SQUIDS based on HTS nanowires can be considered potential candidates as highly sensitive magnetometers for low-field magnetic resonance imaging and magnetoencephalography, for instance. Another interesting phenomenon predicted for superconducting nanowires is the wireless power transfer which occurs in enhanced HTS capacitors based on double-sided Y123 films [11].…”

Section: Introductionmentioning

confidence: 99%

Optimum heat treatment to enhance the weak-linkresponse of Y123 nanowires prepared by SolutionBlow Spinning

Caffer,

Chaves,

Pessoa

et al. 2020

Preprint

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Although the production of YBa 2 Cu 3 O 7−δ (Y123) has been extensively reported, there is still a lack of information on the ideal heat treatment to produce this material in the form of one dimension nanostructures. Thus, by means of the Solution Blow Spinning technique, metals embedded in polymer fibers were prepared. These polymer composite fibers were fired and then investigated by thermogravimetric analysis. The maximum sintering temperatures of heat treatment were chosen in the interval 850 °C-925 °C for one hour under oxygen flux. SEM images allowed us to determine the wire diameter as approximately 350 nm for all samples, as well as to map the evolution of the entangled wire morphology with the sintering temperature. XRD analysis indicated the presence of Y123 and secondary phases in all samples. Ac magnetic susceptibility and dc magnetization measurements demonstrated that the sample sintered at 925 °C/1h is the one with the highest weak-link critical temperature and the largest diamagnetic response.

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Superconducting electrode capacitor based on double-sided YBCO thin film for wireless power transfer applications

Cited by 14 publications

References 27 publications

A tunable superconducting LC-resonator with a variable superconducting electrode capacitor bank for application in wireless power transfer

A tunable superconducting LC-resonator with a variable superconducting electrode capacitor bank for application in wireless power transfer

Machine Learning for Plant Stress Modeling: A Perspective towards Hormesis Management

Optimum heat treatment to enhance the weak-linkresponse of Y123 nanowires prepared by SolutionBlow Spinning

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