Results 51 to 60 of about 18,179 (199)

Implementing and Evaluating a Wireless Body Sensor System for Automated Physiological Data Acquisition at Home [PDF]

open access: yes, 2010
Advances in embedded devices and wireless sensor networks have resulted in new and inexpensive health care solutions. This paper describes the implementation and the evaluation of a wireless body sensor system that monitors human physiological data at ...
Chen, Chao, Pomalaza-Raez, Carlos
core   +1 more source

Augmenting forearm crutches with wireless sensors for lower limb rehabilitation [PDF]

open access: yes, 2010
Forearm crutches are frequently used in the rehabilitation of an injury to the lower limb. The recovery rate is improved if the patient correctly applies a certain fraction of their body weight (specified by a clinician) through the axis of the crutch ...
  +22 more
core   +1 more source

Three-Phase High Power Underwater Capacitive Wireless Power Transfer System for Autonomous Underwater Vehicles

open access: yesJournal of Marine Science and Engineering
This paper proposes a 1000 W high-frequency three-phase power inversion underwater capacitive wireless power transfer (UCWPT) system for power delivery to autonomous underwater vehicles (AUVs). The multi-phase coupling structure is designed as a columnar
Lei Yang   +6 more
doaj   +1 more source

Exploitation of Transparent Conductive Oxides in the Implementation of a Window-Integrated Wireless Sensor Node

open access: yes, 2018
Exploitation of transparent conductive oxides (TCO) to implement an energy-autonomous sensor node for a wireless sensor network (WSN) is studied and a practical solution presented.
Jaakkola, Kaarle, Tappura, Kirsi
core   +1 more source

Class E Power Amplifier Design and Optimization for the Capacitive Coupled Wireless Power Transfer System in Biomedical Implants

open access: yesEnergies, 2017
The capacitive coupled wireless power transfer (CCWPT) operating at megahertz (MHz) frequency is broadly considered as the promising solution for low power biomedical implants.
Narayanamoorthi R.   +4 more
doaj   +1 more source

Wireless Power Transfer Technologies Applied to Electric Vehicles: A Review

open access: yesEnergies, 2021
The expansion on the use of Electric Vehicles demands new mechanisms to ease the charging process, making it autonomous and with a reduced user intervention. This paper reviews the technologies applied to the wireless charge of Electric Vehicles.
Alicia Triviño   +2 more
doaj   +1 more source

A neural probe with up to 966 electrodes and up to 384 configurable channels in 0.13 μm SOI CMOS [PDF]

open access: yes, 2017
In vivo recording of neural action-potential and local-field-potential signals requires the use of high-resolution penetrating probes. Several international initiatives to better understand the brain are driving technology efforts towards maximizing the ...
Andrei, Alexandru   +13 more
core   +1 more source

Shielded Capacitive Power Transfer (S-CPT) without Secondary Side Inductors

open access: yesEnergies, 2021
In this study, we propose a four-plate structure with two shielding plates to produce shielded capacitive power transfer (S-CPT) at an operating frequency of 6.78 MHz for a 10 W system.
Suziana Ahmad   +4 more
doaj   +1 more source

A fully bidirectional 2.4-GHz Wireless-Over-Fiber system using Photonic Active Integrated Antennas (PhAIAs) [PDF]

open access: yes, 2007
This paper describes a low-cost scheme for implementing in-building distributed antenna systems using the photonic-active-integrated-antenna (PhAIA) concept, whereby photonic devices are integrated directly with planar antennas.
Cryan, MJ, Sittakul, V
core   +2 more sources

Preliminary study of 50 W Class-E GaN FET amplifier for 6.78 MHz capacitive wireless power transfer

open access: yesJournal of Mechatronics, Electrical Power, and Vehicular Technology, 2020
A preliminary study of Class-E radio frequency power amplifier for wireless capacitive power transfer (CPT) system is presented in this paper. Due to a limitation in coupling capacitance value, a high frequency operation of switching power inverter is ...
Aam Muharam   +6 more
doaj   +1 more source

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