Results 91 to 100 of about 555 (244)

Design of synchronous switched-mode power supply for automotive [PDF]

, 2018
This bachelor´s thesis deals with the DC/DC convertors and their application in automotive lighting. In first part of thesis, there are mentioned DC/DC convertors, their basic topologies and synchronous rectification.
Sedlák, Jakub
core  

Additive‐Manufactured, Multifunctional Bioreactor Technology for Dynamic Culture of 3D Bioprinted Tissue Models

Advanced Materials Technologies, EarlyView.
We introduce an additively manufactured bioreactor with a perfusion flow system and integrated temperature and pH sensors for skeletal muscle tissue biofabrication. The bioreactor's performance was evaluated by assessing the viability, spreading of the myoblast cells in a printed scaffold, and contraction of the isolated murine musculi interossei ...
Lys Sprenger, Johann Schorzmann, Hsuan‐Heng Lu, Muhammad Osama, Julian Bauer, Michael Haug, Oliver Friedrich, Aldo R. Boccaccini, Frank Döpper, Sahar Salehi   +9 more
wiley   +1 more source

Hybrid islanding detection method using PMU‐ANN approach for inverter‐based distributed generation systems

IET Renewable Power Generation
An essential component of guaranteeing the stability and safety of electricity distribution networks is islanding detection. In this work, a novel method for islanding detection which combined both phasor measurement units (PMU) and artificial neural ...
Mohammad Abu Sarhan, Szymon Barczentewicz, Tomasz Lerch   +2 more
doaj   +1 more source

Triboelectric nanogenerators as wearable power sources and self-powered sensors. [PDF]

Natl Sci Rev, 2023
Pu X, Zhang C, Wang ZL.
europepmc   +1 more source

Linking Device Performance to Nanoscale Photoactivation of Grain Boundaries in 2D Hybrid Halide Perovskites

Advanced Materials Technologies, EarlyView.
The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni, Lorenzo Calcaterra, Andrea Ciavatti, Silvia Milita, Valentina Bonino, Lorenzo Margotti, Sara Cepić, Marisa Di Sabatino, Federico Boscherini, Daniela Cavalcoli, Beatrice Fraboni   +10 more
wiley   +1 more source

Dynamic modeling of DC-DC converters with peak current control in double-stage photovoltaic grid-connected inverters [PDF]

, 2011
In photovoltaic (PV) double-stage grid-connected inverters a high-frequency DC-DC isolation and voltage step-up stage is commonly used between the panel and the grid-connected inverter.
González-Medina, Raúl, Figueres Amorós, Emilio, Emilio Figueres, Gabriel Garcerá, Jesús Sandia, Garcerá, Gabriel, Raúl González-Medina, Sandia Paredes, Jesús   +7 more
core   +1 more source

Recent Advances in Triboelectric Nanogenerators: From Technological Progress to Commercial Applications. [PDF]

ACS Nano, 2023
Choi D, Lee Y, Lin ZH, Cho S, Kim M, Ao CK, Soh S, Sohn C, Jeong CK, Lee J, Lee M, Lee S, Ryu J, Parashar P, Cho Y, Ahn J, Kim ID, Jiang F, Lee PS, Khandelwal G, Kim SJ, Kim HS, Song HC, Kim M, Nah J, Kim W, Menge HG, Park YT, Xu W, Hao J, Park H, Lee JH, Lee DM, Kim SW, Park JY, Zhang H, Zi Y, Guo R, Cheng J, Yang Z, Xie Y, Lee S, Chung J, Oh IK, Kim JS, Cheng T, Gao Q, Cheng G, Gu G, Shim M, Jung J, Yun C, Zhang C, Liu G, Chen Y, Kim S, Chen X, Hu J, Pu X, Guo ZH, Wang X, Chen J, Xiao X, Xie X, Jarin M, Zhang H, Lai YC, He T, Kim H, Park I, Ahn J, Huynh ND, Yang Y, Wang ZL, Baik JM, Choi D.   +75 more
europepmc   +1 more source

Testing and Simulation of Multilayer Polyvinylidene Fluoride‐Based Piezoelectric Energy Harvester Devices

Advanced Materials Technologies, EarlyView.
The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin, Silvia Monchetti, Paolo Emilio Puddu, Luciano Teresi, Antonio DeSimone, Roberto Brighenti   +5 more
wiley   +1 more source

Inference of dominant modes for linear stochastic processes. [PDF]

R Soc Open Sci, 2021
MacKay RS.
europepmc   +1 more source

High‐Performance Piezoelectric Nanogenerators Based on Wurtzite BeO Nanowire Arrays

Advanced Materials Technologies, EarlyView.
This study demonstrates high‐performance piezoelectric nanogenerators based on 1D BeO nanowire arrays. The BeO nanowires exhibit a high piezoelectric coefficient (∼15.8 pm V−1) and deliver an output voltage of ∼26.1 V and power density of ∼0.32 µW cm−2.
Yoonseo Jang, Jihyeon Park, Seoyeah Oh, Jonghyun Bae, Prakash R. Sultane, Christopher W. Bielawski, Jiwon Kim, Jungwoo Oh   +7 more
wiley   +1 more source