Results 241 to 250 of about 67,464 (300)

Staircase-Enhanced Magneto-Electric Dipole Antenna for Wideband CP 5G Applications with High-Gain Arrays. [PDF]

Sensors (Basel)
Malhat H, Zakaria A, Qaddoumi N.
europepmc   +1 more source

Novel design of a dual-band microstrip antenna array for 6G mmWave applications. [PDF]

Sci Rep
Al Ka'bi A.
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Short- and Mid-term Outcomes of the Extravascular Implantable Cardioverter-defibrillator in Pediatric and Adolescent Patients: A Single-center Experience. [PDF]

J Innov Card Rhythm Manag
Dragisic N, Backes ER, Malloy-Walton L, Bedzra EK, Gibson WJ, Chang PM.   +5 more
europepmc   +1 more source

Distributed Virtual Inertia Control Strategy for Multi-Virtual Synchronous Machine Parallel System Based on Neighbor Communication. [PDF]

Sensors (Basel)
Cao G, Wu H, Liu Y, Ren Q.
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A DFIG impedance reshaping method based on dynamic compensation of rotor current to enhance the stability in the mid-frequency band. [PDF]

Sci Rep
Zhao H, Lyu S, Wang B, Wang R.
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Effects of an Immersive Virtual Reality-Based Exercise Intervention on Psychological and Physiological Outcomes in College Students: Randomized Controlled Trial.

JMIR Serious Games
Liu W, McDonough DJ, Oginni J, Mavoungou J, Gao Z.   +4 more
europepmc   +1 more source

Design and control of a low-cost non-backdrivable end-effector upper limb rehabilitation device. [PDF]

Front Rehabil Sci
Li F, Guo Y, Xu W, Zhang W, Zhao F, Wang B, Du H, Zhang C.   +7 more
europepmc   +1 more source

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Virtual Impedance Method for Mutual Coupling Compensation

IEEE Transactions on Antennas and Propagation, 2021
The radiation pattern of an antenna within an array environment is modified by mutual coupling to neighboring elements, which can create unknown phase and amplitude variation on the order of 10° and 5 dB. This uncertainty in the element patterns results in beamforming errors, which can be particularly problematic for applications requiring precise ...
Carl Pfeiffer, Fikadu Dagefu, Boris Tomasic, Jeffrey N. Twigg, Bae-Ian Wu   +4 more
openaire   +1 more source

Impedance control with virtual compliance

Proceedings of the Third International Workshop on Robot Motion and Control, 2002. RoMoCo '02., 2003
In the paper a new concept of impedance control for a simple 1D dynamical system has been presented. The new approach lies in treating a task of reaching a contact plane and generating desired force on environment as one control problem that can be realized by one coherent control equation.
P. Dutkiewicz, M. Michalek
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Virtual Impedance Shaping for low voltage Microgrids

2020 IEEE Applied Power Electronics Conference and Exposition (APEC), 2020
AC Microgrids, in presence of highly non-linear loads, require a tighter regulation of line voltage to maintain power quality. This article proposes an outer virtual impedance loop to shape the output voltage in such microgrids. In order to achieve this, a virtual impedance extracting and shaping filter is first proposed to extract and weigh selected ...
Sourav Patel, Soham Chakraborty, Subhrajit Roychowdhury, Murti V. Salapaka   +3 more
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