Results 71 to 80 of about 5,398 (215)
HYBRID EQUIVALENT CIRCUIT GENERATION [PDF]
Carpathian Journal of Electrical Engineering, 2021 The main objective of this paper is to correctly define the hybrid equivalent circuits. These circuits allow the separation of the linear portions of electronic circuits from the nonlinear ones and in this way the polarization process of electronic ...
Mihaela GRIB +4 more
doaj
Battery Energy, Volume 4, Issue 6, November 2025.To handle nonlinearity and feature coupling, a data‐driven aging model is proposed, employing dual Gaussian Process Regressions and transfer learning to enhance model efficiency and accuracy. Adaptive filtering refines the model by integrating aging features and output capacity, resulting in a closed‐loop data fusion framework for SOH estimation ...
Zhiqiang Lyu +3 more
wiley +1 more source
Frontiers in Energy ResearchThe short-circuit ratio index (SCR) can effectively quantify the voltage support strength in traditional DC grid-connected scenarios, yet it cannot reasonably describe the voltage support strength in diverse device grid connection scenarios.
Pan Lei, Jinquan Zhao
doaj +1 more source
Performance Improvement in Passive Backscatter Based RFID System with Low DCR Modulations [PDF]
, 2014 This paper presents application of the low Duty Cycle Ratio (DCR) modulations: isochronous Digital Pulse Position Modulation (DPPM) and anisochronous Digital Pulse Interval Modulation (DPIM) in backscatter based passive RFID communication system.
Svedek, T., Vinko, D., Zagar, D.
core +1 more source
Amplifier‐Based Programmable Metasurface for Bidirectional Full Polarization Enhancement
Small Structures, Volume 6, Issue 11, November 2025.An amplifier‐based programmable metasurface is proposed to enhance bidirectional propagation of various polarized electromagnetic waves. The metasurface incorporates patch scatterers, reconfigurable phase shifters, and negative resistors to manipulate wave direction and improve wireless communication coverage. The Class‐E reflection amplifier minimizes
Xin Wang +5 more
wiley +1 more source
A High-Efficiency RF Harvester with Maximum Power Point Tracking
Proceedings, 2018 This paper presents the implementation of a high-efficiency radiofrequency (RF) harvester, which consists of a rectenna and a maximum power point tracker (MPPT).
Manel Gasulla +5 more
doaj +1 more source
Acoustic radiation stress measurement [PDF]
, 1987 Ultrasonic radio frequency tone-bursts are launched into a sample of material tested. The amplitude of the tone-bursts and the slope of the resulting static displacement pulses are measured.
Cantrell, John H., Jr., Yost, William T.
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Energy Science &Engineering, Volume 13, Issue 10, Page 4933-4943, October 2025.ABSTRACT The reliability of parameter accuracy in lithium‐ion battery models plays a crucial role in the efficiency of state‐of‐charge (SOC) estimation methods that employ model‐based strategies. To address the limitations of traditional recursive least squares (RLS) algorithms in tracking dynamic battery characteristics, This paper introduces a bi ...
Wei Xia +3 more
wiley +1 more source
Laboratory studies of spacecraft response to transient discharge pulses [PDF]
, 1985 The in-orbit measurement of spacecraft discharge properties was investigated. The experiments include design and fabrication of appropriate sensors and effects of spacecraft electromagnetic responses on the interpretation of the discharge data.
Adamo, R. C., Nanevicz, J. E.
core +1 more source
An Improved Equivalent Circuit for Electric Field Sensors in Geophysical Exploration
Geophysical Prospecting, Volume 73, Issue 8, October 2025.ABSTRACT In electromagnetic measurements, electric field sensors consist of two halves, with remote electrodes of negative and positive polarity coupled through wires and low pass filters to the differential inputs of an analogue‐to‐digital converter; the electrical ground of the analogue‐to‐digital converter is connected to the ground through a ...
Thomas Kalscheuer +4 more
wiley +1 more source