Results 1 to 10 of about 393,214 (117)

Lead Reconstruction Using Artificial Neural Networks for Ambulatory ECG Acquisition

open access: yesSensors, 2021
One of the most powerful techniques to diagnose cardiovascular diseases is to analyze the electrocardiogram (ECG). To increase diagnostic sensitivity, the ECG might need to be acquired using an ambulatory system, as symptoms may occur during a patient’s ...
Alejandro Grande-Fidalgo   +4 more
doaj   +1 more source

Linear Quadratic Regulator Optimal Control with Integral Action (LQRIC) for LC-Coupling Hybrid Active Power Filter

open access: yesApplied Sciences, 2022
Renewable energy generation and nonlinear load devices will generate harmonics and reactive power to power grids, resulting in current distortion and low power factors.
Qian-Rong Hong   +4 more
doaj   +1 more source

A digital receiver signal strength detector for multi-standard low-IF receivers [PDF]

open access: yesAdvances in Radio Science, 2018
This paper presents a receiver signal strength detector based on a discrete Fourier transform implementation. The energy detection algorithm has been designed and measured using a custom multi-standard transceiver ASIC with a low-IF receiver at 0.5, 1
T. Saalfeld   +3 more
doaj   +1 more source

Implementation of envelope detection based Wake-Up Receiver for IEEE 802.15.4 WPAN from off-the-shelf components [PDF]

open access: yesAdvances in Radio Science, 2017
Power consumption in wireless networks is crucial. In most scenarios the transmission time is short compared to the idle listening time for data transmission, the most power is consumed by the receiver.
J. Arndt   +4 more
doaj   +1 more source

Line‐transient enhancement techniques for multi‐path hybrid DC–DC converter with <1% output overshoot/undershoot

open access: yesElectronics Letters, 2022
This letter presents two transient enhancement techniques for multi‐path switched‐capacitor‐inductor (MP‐SCI) hybrid DC–DC converters to eliminate the line‐transient‐induced voltage coupling to the converter output.
Huihua Li   +5 more
doaj   +1 more source

A Flexible Rooftop Photovoltaic-Inductive Wireless Power Transfer System for Low-Voltage DC Grid

open access: yesIEEE Access, 2023
A rooftop photovoltaic (PV) system is a significant solution of building-integrated centralized generation in the low-voltage (LV) DC grid. The drilling-free rooftop PV-inductive wireless power transfer (PV-IWPT) system for the LVDC grid can reduce the ...
Io-Wa Iam   +5 more
doaj   +1 more source

Automatic power‐stage partitioning method for reconfigurable SC DC‐DC converters with reduced power‐cell redundancy

open access: yesElectronics Letters, 2022
This letter presents an automatic power‐stage implementation and optimization methodology for fully‐integrated reconfigurable switched‐capacitor (SC) DC‐DC converters with fine‐grained voltage conversion ratios (VCRs). The proposed technique resolves the
Xuchu Mu   +5 more
doaj   +1 more source

An Ultra-Low-Voltage Single-Crystal Oscillator-Timer (XO-Timer) Delivering 16-MHz and 32.258-kHz Clocks for Sub-0.5-V Energy-Harvesting BLE Radios in 28-nm CMOS

open access: yesIEEE Open Journal of Circuits and Systems, 2023
This paper reports an ultra-low-voltage (ULV) single-crystal oscillator-timer (XO-Timer) for sub-0.5 V Bluetooth low-energy (BLE) radios that aims for self-powering by harvesting the ambient energies. Specifically, we tailor an on-chip micropower manager
Liwen Lin   +3 more
doaj   +1 more source

Design and implementation of a flexible node for IoT supporting 6LoWPAN and a sensor shield for home automation application [PDF]

open access: yesAdvances in Radio Science, 2018
The Internet of Things (IoT) and Industry 4.0 is evolving and has a high demand for reliable electronics. This work contributes to the creation of user-friendly and robust applications for the IoT. The topic is the development of a radio communication
J. Arndt   +3 more
doaj   +1 more source

SARS-CoV-2 RNA Detection with Duplex-Specific Nuclease Signal Amplification

open access: yesMicromachines, 2021
The emergence of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a zoonotic pathogen, has led to the outbreak of coronavirus disease 2019 (COVID-19) pandemic and brought serious threats to public health worldwide.
Meiqing Liu   +4 more
doaj   +1 more source

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