Results 41 to 50 of about 63,796 (289)

Rendering volumetric haptic shapes in mid-air using ultrasound:Proceedings of ACM SIGGRAPH Asia 2014 [PDF]

open access: yes, 2014
We present a method for creating three-dimensional haptic shapes in mid-air using focused ultrasound. This approach applies the principles of acoustic radiation force, whereby the non-linear effects of sound produce forces on the skin which are strong ...
Carter, Tom   +3 more
core   +2 more sources

Improved Direct Model Predictive Control for Grid-Connected Power Converters

open access: yesEnergies, 2020
This paper proposes a computationally efficient and robust direct model predictive control (DMPC) technique with enhanced steady-state performance for power converters tied to the electric utility.
Mohamed Abdelrahem   +2 more
doaj   +1 more source

DSVM-Based Model-Free Predictive Current Control of an Induction Motor

open access: yesEnergies, 2023
Classical model-free predictive current control (MFPCC) is a robust control technique for a two-level inverter-fed induction-motor drive, with advantages that consist of a simple concept, rapid response, simple implementation, and excellent performance ...
Md Asif Hussain   +5 more
doaj   +1 more source

Downlink Precoding for Massive MIMO Systems Exploiting Virtual Channel Model Sparsity

open access: yes, 2017
In this paper, the problem of designing a forward link linear precoder for Massive Multiple-Input Multiple-Output (MIMO) systems in conjunction with Quadrature Amplitude Modulation (QAM) is addressed.
Ayanoglu, Ender, Ketseoglou, Thomas
core   +1 more source

Transverse-target-spin asymmetry in exclusive $\omega$-meson electroproduction [PDF]

open access: yes, 2015
Hard exclusive electroproduction of $\omega$ mesons is studied with the HERMES spectrometer at the DESY laboratory by scattering 27.6 GeV positron and electron beams off a transversely polarized hydrogen target.
Airapetian, A.   +95 more
core   +5 more sources

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

A Discrete Space Vector Modulation MPC-Based Artificial Neural Network Controller for PMSM Drives

open access: yesMachines
In addition to the basic voltage vector modulation technique, virtual vectors can be generated through the discrete space vector modulation (DSVM) technique.
Jiawei Guo   +2 more
doaj   +1 more source

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro   +4 more
wiley   +1 more source

Muscle patterns underlying voluntary modulation of co-contraction. [PDF]

open access: yesPLoS ONE, 2018
Manipulative actions involving unstable interactions with the environment require controlling mechanical impedance through muscle co-contraction.
Daniele Borzelli   +4 more
doaj   +1 more source

Three-Phase Motor Inverter and Current Sensing GaN Power IC

open access: yesSensors, 2023
A three-phase GaN-based motor inverter IC with three integrated phase current mirror sensors (sense-FETs or sense-HEMTs, 1200:1 ratio), a temperature sensor, and an amplifier is presented and experimentally operated.
Stefan Mönch   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy