Results 81 to 90 of about 546,731 (283)

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Current-mode Biquadratic Universal Filter Design with Two Terminal Unity Gain Cells [PDF]

, 2012
A grounded parallel lossy active inductor and two current-mode (CM) universal filters are presented in this paper. All the circuits use two voltage followers (VFs) and a current follower (CF).
Alpaslan, H., Yuce, E.
core   +1 more source

Universal filter using unity-gain cells

Electronics Letters, 1995
The authors propose the use of both current and voltage followers for implementation of a universal filter. The aim is to show how, by using only unity-gain cells as active components, a universal filter can be obtained with improved performance over classical filters.
S. Celma, J. Sabadell, P. Martínez
openaire   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

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, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source

A 42.5 nW, 0.5 V Differential Difference Transconductance Amplifier and Its Application in Low-Power Universal Shadow Filter

IEEE Access
This paper presents new low-power universal shadow filters based on an enhanced CMOS structure utilizing multiple-input differential difference current transconductance amplifiers (MI-DDTAs).
Montree Kumngern, Fabian Khateb, Tomasz Kulej, Daniel Arbet   +3 more
doaj   +1 more source

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

Active 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, Aamir Alam Farooqui   +1 more
doaj   +1 more source

Improved Measure of Local Chirality

, 2004
It is popular to probe the structure of the QCD vacuum indirectly by studying individual fermion eigenmodes, because this provides a natural way to filter out UV fluctuations.
Andrei Alexandru, Blum, Cundy, DeGrand, Edwards, Frank Lee, Gattringer, Gattringer, Gattringer, Harry B. Thacker, Hasenfratz, Hip, Horváth, Horváth, Horváth, Horváth, Ivan Horváth, Jianbo Zhang, Narayanan, Neuberger, Nilmani Mathur, Shao-Jing Dong, Sonali Tamhankar, Terrence Draper, Ying Chen   +24 more
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, Manuel J. Carvajal Loaiza, Rahaf Homssi, Vanessa Restrepo   +3 more
wiley   +1 more source

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

Journal 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, Saeed Kermani, Saeed Hosseinnia   +2 more
doaj  

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

Sensors (Basel), 2023
Roongmuanpha N, Likhitkitwoerakul N, Fukuhara M, Tangsrirat W.   +3 more
europepmc   +1 more source