Results 51 to 60 of about 224,725 (310)
Advanced Engineering Materials, EarlyView.Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin +5 more
wiley +1 more source
Reliability of reflectance measures in passive filters [PDF]
, 2014 Measurements of optical reflectance in passive filters impregnated with a reactive chemical solution may be transformed to ozone concentrations via a calibration curve and constitute a low cost alternative for environmental monitoring, mainly to estimate
Andre, Carmen Diva Saldiva +5 more
core +2 more sources
Advanced Engineering Materials, EarlyView.This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar +7 more
wiley +1 more source
Coefficients Calculation in Pascal Approximation for Passive Filter Design
Computation, 2018 The recently modified Pascal function is further exploited in this paper in the design of passive analog filters. The Pascal approximation has non-equiripple magnitude, in contrast of the most well-known approximations, such as the Chebyshev ...
George B. Kasapoglu +3 more
doaj +1 more source
Approach of Passive Filters using NSGA II in industrial installations: Part I [PDF]
, 2018 The optimization of passive filters in industrial systems has been presented by different computational methods. The objective of this paper is to develop a computational algorithm with NSGA II to select the configuration and design parameters of a set ...
Carvajal, T. L. (Tirso) +5 more
core
New trends in active filters for improving power quality [PDF]
, 1995 Since their basic compensation principles were proposed around 1970, active filters have been studied by many researchers and engineers aiming to put them into practical applications.
Akagi, Hirofumi
core +1 more source
Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release
Advanced Engineering Materials, EarlyView.Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro +3 more
wiley +1 more source
Voltage/Current-Mode Multifunction Filters Using Current-Feedback Amplifiers and Grounded Capacitors
Active and Passive Electronic Components, 2010 One configuration for realizing voltage-mode multifunction filters and another configuration for realizing current-mode multifunction filters each using two current-feedback amplifiers (CFAs) are presented.
Jiun Wei Horng +2 more
doaj +1 more source
Hybrid Power Filter Based on a Six-Switch Two-Leg Inverter
Eletrônica de Potência, 2014 Hybrid power filters (HPFs) are considered an attractive solution to overcome the problem of current harmonics generated by nonlinear loads. They mix low power rating active filters with passive filters, but many of these HPF topologies have a great ...
Leonardo R. Limongi +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park +8 more
wiley +1 more source