Results 61 to 70 of about 579,944 (309)

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente   +3 more
wiley   +1 more source

Characteristics and propagation of switching-induced stress waves in SiC MOSFET power modules

open access: yesFrontiers in Energy Research
Switching-induced stress waves (SSW) are recognized as a promising non-invasive technology for real-time monitoring of power module packaging failures, though limited by the lack of a comprehensive understanding of their characteristics and propagation ...
Siqi Huang   +7 more
doaj   +1 more source

A novel inductive electromagnetic energy harvester for condition monitoring sensors [PDF]

open access: yes, 2010
As the operation of electrical power networks becomes increasingly sophisticated, the role of condition monitoring is expanding. The burden of implementing additional condition monitoring will be eased if self-powered, fully autonomous sensors can be ...
Fraser, Leigh   +2 more
core  

Partial discharge pulse propagation in power cable and partial discharge monitoring system [PDF]

open access: yes, 2014
Partial discharge (PD) based condition monitoring has been widely applied to power cables. However, difficulties in interpretation of measurement results (location and criticality) remain to be tackled.
Dong, Xiang   +6 more
core   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

A comprehensive review of foundation designs for fixed offshore wind turbines

open access: yesInternational Journal of Naval Architecture and Ocean Engineering
In the present study, technical challenges and their corresponding solutions for each type of foundation—gravity-based, monopile, jacket, tripod, and suction bucket—used in wind turbines were addressed with consideration to different water depths.
Yun-jae Kim   +3 more
doaj   +1 more source

Analysis of the Temperature Characteristics of Three-Phase Coaxial Superconducting Power Cable according to a Liquid Nitrogen Circulation Method for Real-Grid Application in Korea

open access: yesEnergies, 2019
Large-capacity superconducting power cables are in the spotlight to replace existing underground transmission power cables for energy power transmission.
Seok-Ju Lee   +5 more
doaj   +1 more source

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

open access: yesAdvanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu   +4 more
wiley   +1 more source

Electromagnetic field application to underground power cable detection

open access: yes, 2011
Before commencing excavation or other work where power or other cables may be buried, it is important to determine the location of cables to ensure that they are not damaged.
Goddard, K F   +3 more
core  

The Legal Needs of Local Media Reform Organizations: Report of a National Survey [PDF]

open access: yes, 2006
This report summarizes a nationwide survey of media reform groups to gauge their needs for pro bono legal assistance. Conclusions are that local media democracy groups need legal help on multiple issues, ranging from municipal broadband to cable ...
Neema Trivedi
core  

Home - About - Disclaimer - Privacy