Results 11 to 20 of about 168,399 (308)

Development of a biomechanical energy harvester [PDF]

open access: yesJournal of NeuroEngineering and Rehabilitation, 2009
Biomechanical energy harvesting-generating electricity from people during daily activities-is a promising alternative to batteries for powering increasingly sophisticated portable devices. We recently developed a wearable knee-mounted energy harvesting device that generated electricity during human walking. In this methods-focused paper, we explain the
Naing, Veronica   +2 more
openaire   +4 more sources

A Novel Capacitance-Based In-Situ Pressure Sensor for Wearable Compression Garments

open access: yesMicromachines, 2019
This paper pertains to the development & evaluation of a dielectric electroactive polymer-based tactile pressure sensor and its circuitry. The evaluations conceived target the sensor’s use case as an in-situ measurement device assessing load ...
Steven Lao   +4 more
doaj   +1 more source

Microactuation of Magnetic Nanofluid Enabled by a Pulsatory Rotating Magnetic Field

open access: yesActuators, 2023
A microactuation process was developed with the help of four coils that generate a pulsatory rotating magnetic field. A small actuator stator, which contains a 46 mm acrylonitrile butadiene styrene (ABS) opened box and four coils with E-type ferrite ...
Lucian Pîslaru-Dănescu   +4 more
doaj   +1 more source

Unraveling the cause of degradation in Cu(In,Ga)Se2 photovoltaics under potential induced degradation

open access: yesNano Select, 2022
Copper indium gallium diselenide (CIGS) based technology is actively competing in the global photovoltaic market with high conversion efficiency. Commercial CIGS modules are anticipated to perform on rated output in the field condition for 20 years ...
Zeel Purohit   +7 more
doaj   +1 more source

Modular Electromagnetic Transducer for Optimized Energy Transfer via Electric and/or Magnetic Fields

open access: yesSensors, 2023
In this paper, a modular electromagnetic transducer that achieves the optimal transfer of energy from the electric and/or magnetic fields is proposed.
George-Claudiu Zărnescu   +2 more
doaj   +1 more source

Energy Cooperation in Energy Harvesting Communications [PDF]

open access: yesIEEE Transactions on Communications, 2013
In energy harvesting communications, users transmit messages using energy harvested from nature during the course of communication. With an optimum transmit policy, the performance of the system depends only on the energy arrival profiles. In this paper, we introduce the concept of energy cooperation, where a user wirelessly transmits a portion of its ...
Berk Gurakan   +3 more
openaire   +2 more sources

Electromagnetic energy harvester for harvesting acoustic energy

open access: yesSādhanā, 2016
This paper reports a suspended coil, electromagnetic acoustic energy harvester (AEH) for extracting acoustical energy. The developed AEH comprises Helmholtz resonator (HR), a wound coil bonded to a flexible membrane and a permanent magnet placed in a magnet holder.
Farid U Khan, null Izhar
openaire   +2 more sources

Nanomaterials for Energy Harvesting

open access: yesNanomaterials, 2023
Energy harvesting is no longer simply an academic issue; it has grown into a problem with real industrial and even social significance [...]
openaire   +3 more sources

Giant piezoelectric voltage coefficient in grain-oriented modified PbTiO3 material

open access: yesNature Communications, 2016
High piezoelectric voltage coefficients drive the sensitivity of piezoelectric sensors. Here, the authors synthesized textured Sm- and Mn-doped PbTiO3ceramics and demonstrate significant enhancement in voltage coefficient.
Yongke Yan   +4 more
doaj   +1 more source

Opportunistic energy trading between co-located energy-harvesting wireless sensor networks [PDF]

open access: yes, 2013
Wireless sensor networks are increasingly using energy harvesting to extend their lifetime and avoid battery replacement. However, ambient energy sources typically exhibit temporal-spatial variation, and complex power management algorithms have been ...
Geoff V. Merrett   +5 more
core   +1 more source

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