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An analytical technique for calculating the surface impedance by using an approximate model of the current distribution in a superconducting thin film

Fourth International Kharkov Symposium 'Physics and Engineering of Millimeter and Sub-Millimeter Waves'. Symposium Proceedings (Cat. No.01EX429), 2002
In this paper, an approximate analytical method for calculating the surface impedance of superconducting thin film is presented. This method is based on Maxwell's equations, vector identities, Stoke's theorem, Gauss's theorem, differential operations in various coordinates and Poynting's theorem analysis for an approximate model of the current ...
T.E. Taha, A.M. Gomaa, M.F. El-Kordy
openaire   +1 more source

Semiconductor Electrodes: XLIX . Evidence for Fermi Level Pinning and Surface‐State Distributions from Impedance Measurements in Acetonitrile Solutions with Various Redox Couples

Journal of The Electrochemical Society, 1983
Capacitance‐voltage (C‐V) measurements were made for the single crystal semiconductors ; , , p‐Si,, , and in acetonitrile containing a number of redox couples whose potentials spanned a potential regime much wider than the bandgaps. The flatband potential evaluated from capacitance‐potential (C‐V) measurements (Mott‐Schottky plots) exhibited three ...
G. Nagasubramanian   +2 more
openaire   +1 more source

Enhancing the precision of impedance measurement from 5 kHz to 1 MHz through self-identification of parasitic parameters

Physiological Measurement
Objective. Electrical impedance tomography (EIT) generates cross-sectional images through non-invasive impedance measurements from surface electrodes.

semanticscholar   +1 more source

Electrical Impedance Tomography Based Finger-Shaped Soft Artificial Skin

IEEE Robotics and Automation Letters
Obtaining dense contact information for feedback control is vital for robotic manipulation. However, existing tactile sensing technologies have a large footprint, making seamless integration with current robotic devices difficult.
Yunqi Huang, T. G. Thuruthel
semanticscholar   +1 more source

Multi-Layer Electrical Impedance Tomography Based Soft Tactile Skins

International Conference on Soft Robotics
Distributed high-density tactile sensing is a challenging problem with numerous commercial applications. Soft sensing technologies appear to be a promising approach to address this challenge.
Yuexuan Wang   +3 more
semanticscholar   +1 more source

Oct-HD: A Wearable Distributed Wireless HD-sEMG Synchronous Acquisition System for Long-Term Monitoring

IEEE Internet of Things Journal
High-density surface EMG (HD-sEMG) is gaining attention because of its noninvasive nature and high spatial resolution. However, wearable HD-sEMG measurements with over 128 channels face challenges in system integration and reliable network-free ...
Xin Tan   +6 more
semanticscholar   +1 more source

Comparative Evaluation of Impedance-Matching Techniques for Sustainable Laser-Induced Graphene (LIG) UHF RFID Antennas

IEEE Journal of Radio Frequency Identification
As the demand for RFID-enabled systems grows, sustainability and circularity are becoming key drivers of innovation in tag and antenna design. Laser-Induced Graphene (LIG) offers a low-impact and recyclable alternative to metal conductors, enabling green,
F. Nanni   +2 more
semanticscholar   +1 more source

A Concentric Ring Microneedle Electrode With Low Contact Impedance for Close Sources Laplacian EEG Recording

IEEE Transactions on Biomedical Engineering
Objective: Microneedle electrodes are a promising solution to the long-term collection of high-quality electroencephalography (EEG) signals without skin preparation.
Kunyu Zheng   +6 more
semanticscholar   +1 more source

Beamforming Design and Impedance Optimization of Lossy Holographic Surfaces

Global Communications Conference
We investigate the beamforming performances of holographic surfaces implemented as arrays of densely deployed, lossy, and identical antennas. We first develop a general model to characterize the mutual coupling effect among the antennas arbitrarily ...
Peng Wang, B. M. Popovic, M. N. Khormuji
semanticscholar   +1 more source

Localized and Distributed Beyond Diagonal Reconfigurable Intelligent Surfaces With Lossy Interconnections: Modeling and Optimization

IEEE Transactions on Communications
Reconfigurable intelligent surface (RIS) is a key technology to control the communication environment in future wireless networks. Recently, beyond diagonal RIS (BD-RIS) emerged as a generalization of RIS achieving larger coverage through additional ...
Matteo Nerini   +2 more
semanticscholar   +1 more source

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