Results 91 to 100 of about 550,631 (287)

New Universal Filter Using Two Current-Feedback Amplifiers

open access: yesActive and Passive Electronic Components, 1997
A new universal voltage-mode second-order filter circuit is presented. The circuit has three inputs and one low-impedance output and can realize all the standard filter functions; lowpass, highpass, bandpass, notch, and allpass, without changing the ...
Muhammad Taher Abuelma'atti   +1 more
doaj   +1 more source

Single VDGA-Based Mixed-Mode Electronically Tunable First-Order Universal Filter. [PDF]

open access: yesSensors (Basel), 2023
Roongmuanpha N   +3 more
europepmc   +1 more source

Why we should use high values for the smoothing parameter of the Hodrick-Prescott filter [PDF]

open access: yes, 2012
The HP filter is the most popular filter for extracting the trend and cycle components from an observed time series. Many researchers consider the smoothing parameter lambda = 1600 as something like an universal constant.
Flaig, Gebhard
core  

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

open access: yesAdvanced 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

Designing an Inverter-based Operational Transconductance Amplifier-capacitor Filter with Low Power Consumption for Biomedical Applications

open access: yesJournal of Medical Signals and Sensors, 2018
The operational transconductance amplifier-capacitor (OTA-C) filter is one of the best structures for implementing continuous-time filters. It is particularly important to design a universal OTA-C filter capable of generating the desired filter response ...
Sajad Yousefinezhad   +2 more
doaj  

New Universal One-Input Five-Output Current-Mode Filter Using Current-Conveyors

open access: yesActive and Passive Electronic Components, 1995
A new universal active current-mode filter with single input and five outputs is presented. The proposed filter avoids the use of feedback in any part of the circuit and uses only grounded resistors and grounded capacitors.
Muhammad Taher Abuelma'atti   +1 more
doaj   +1 more source

Universal three input and one output current-mode filter withoutexternal passive elements [PDF]

open access: yes, 1997
A new current-mode universal filter is proposed. The filter uses only operational amplifiers and operational transconductance amplifiers (OTAs) and can realise lowpass, highpass, bandpass, notch and allpass responses without changing circuit topology ...
Abuelma’atti, M.T., Alzaher, H.A.
core   +1 more source

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

open access: yesAdvanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan   +8 more
wiley   +1 more source

SIFO voltage-mode universal filters employing TO-CCIIs

open access: yes2012 35th International Conference on Telecommunications and Signal Processing (TSP), 2012
In this paper, two new single-input five-output (SIFO) voltage-mode (VM) second-order universal filters are presented. The proposed filters employ two triple-output second-generation current conveyors (TO-CCIIs) as active elements, five resistors and two grounded capacitors. The proposed filters provide all of the standard filter responses (i.e.
Shahram Minaei   +3 more
openaire   +5 more sources

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