Results 31 to 40 of about 955,560 (346)

Analysis of the Methods for Realization of Low-Power Piezoelectric Energy Harvesting Circuits for Wearable Battery-Free Power Supply Devices

Applied Sciences
This paper presents a comprehensive review of the design and implementation methods of low-power piezoelectric energy harvesting circuits, which in the last few years have gained an extremely large range of applications like the power sources of wearable
Ivaylo Pandiev, Nikolay Tomchev, Nikolay Kurtev, Mariya Aleksandrova   +3 more
doaj   +1 more source

Faults Classification Of Power Electronic Circuits Based On A Support Vector Data Description Method

, 2015
Power electronic circuits (PECs) are prone to various failures, whose classification is of paramount importance. This paper presents a data-driven based fault diagnosis technique, which employs a support vector data description (SVDD) method to perform ...
Jiang Cui
semanticscholar   +1 more source

THREE-LEVEL COMMON-EMITTER CURRENT-SOURCE POWER INVERTER WITH SIMPLIFIED DC CURRENT-SOURCE GENERATION [PDF]

Journal of Engineering Science and Technology, 2018
A diverse circuit of a three-level common-emitter current-source power inverter with simplified DC current source generation circuits was developed and presented in this paper.
SUROSO, DARU TRI NUGROHO, WINASIS
doaj  

MoS2 Transistors Operating at Gigahertz Frequencies [PDF]

, 2014
The presence of a direct band gap and an ultrathin form factor has caused a considerable interest in two-dimensional (2D) semiconductors from the transition metal dichalcogenides (TMD) family with molybdenum disulphide (MoS2) being the most studied ...
Kis, Andras, Krasnozhon, Daria, Leblebici, Yusuf, Lembke, Dominik, Nyffeler, Clemens   +4 more
core   +2 more sources

Integration of control loops in coupled field circuit model to study magnetic devices supplied by power electronic converter and their control [PDF]

, 2002
In this paper, we present a method to take into account the feedback control in software developed from coupled field circuit models. The implementation of control loops is done in a software which is able to simulate electromagnetic devices associated ...
Lefèvre, Yvan, Manot, Gilbert, Piquet, Hubert, Richardeau, Frédéric   +3 more
core   +3 more sources

Shock wave dynamics in nanoporous tungsten and molybdenum via molecular dynamics simulations: Insights into thermodynamic and structural evolution

Journal of Materials Research and Technology
Nanoporous tungsten (NP–W) and molybdenum (NP–Mo) are of great interest in aerospace and nuclear fusion/fission reactor industrial sections. Molecular dynamics (MD) simulations are employed for understanding the influences of shock velocity and relative ...
Yiqun Hu, Zhenhai Li, Xiumin Xu, Yuhang Zhang, Re Xia   +4 more
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

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

Advanced 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, Nelson Pereira, Javier Vicente, Carmen Rial Tubio, Senentxu Lanceros‐Méndez   +4 more
wiley   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Two terminal current limiter [PDF]

, 1970
Two terminal device protects dc electronic circuits and experimental solid state devices, and replaces fuses and circuit breakers directly. The device consists of two transistors and two resistors and draws its necessary supply voltage from power source ...
Doubt, L. S.
core   +1 more source