Results 11 to 20 of about 105,061 (260)

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

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

Superior electrochemical performances of highly porous bismuth oxyhalides decorated lemon peel derived activated carbon electrode materials for solid state asymmetric and symmetric supercapattery devices [PDF]

open access: yesRSC Advances
The ever-increasing energy demand and rapid growth of modern industries enforce the scientific community to search for alternative renewable energy resources.
Bhuvaneshwari Ramasamy   +3 more
doaj   +1 more source

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

Design, Fabrication and Temperature Sensitivity Testing of a Miniature Piezoelectric-Based Sensor for Current Measurements

open access: yesActuators, 2014
Grid capacity, reliability, and efficient distribution of power have been major challenges for traditional power grids in the past few years. Reliable and efficient distribution within these power grids will continue to depend on the development of ...
Steven B. Lao   +5 more
doaj   +1 more source

Piezoelectric Energy Harvesting Solutions [PDF]

open access: yesSensors, 2014
This paper reviews the state of the art in piezoelectric energy harvesting. It presents the basics of piezoelectricity and discusses materials choice. The work places emphasis on material operating modes and device configurations, from resonant to non-resonant devices and also to rotational solutions.
Renato Caliò   +6 more
openaire   +4 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

A MOF‐Based Spatial‐Separation Layer to Enable a Uniform Favorable Microenvironment for Electrochemical CO2 Reduction

open access: yesSmall Structures, 2023
Regulating the local microenvironment of active sites to increase their specific CO2 concentration and pH gradient, is a promising approach to optimize the electrochemical CO2 reduction reaction (eCO2RR).
Xu Han   +8 more
doaj   +1 more source

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