Results 81 to 90 of about 2,085 (212)

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, Volume 36, Issue 20, 9 March 2026.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

Design, Fabrication, and Comparative Study of Electronically Tunable Active Filters

open access: yesActive and Passive Electronic Components, 1995
The Kerwin-Huelsman Newcomb (KHN) biquad is the natural choice for use as a ‘universal’ filter building block out of the several existing 3-amplifier biquadratic filter sections based on the two integrator loop or state variable realization of 2nd order ...
Umesh Kumar, P. Bhushan Mital
doaj   +1 more source

Dynamical Properties of Spin-Orbital Chains in a Magnetic Field

open access: yes, 2000
The excitation spectrum of the one-dimensional spin-orbital model in a magnetic field is studied, using a recently developed dynamical density matrix renormalization group technique.
Haas, Stephan, Yu, Weiqiang
core   +2 more sources

Systematic Derivation for Quadrature Oscillators Using CCCCTAs [PDF]

open access: yes, 2015
According to 16 nullor-mirror models of the current-controlled current conveyor transconductance amplifier (CCCCTA) and using nodal admittance matrix (NAM) expansion method, three different classes of the double-mode quadrature oscillators employed ...
Li, Y. A.
core   +2 more sources

Three Input Single Output Voltage-Mode Multifunction Filter with Independent Control of Pole Frequency and Quality Factor

open access: yesAdvances in Electrical and Electronic Engineering, 2013
This paper presents a voltage-mode biquadratic filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, based on single voltage differencing transconductance amplifier (VDTA).
Witthaya Mekhum, Winai Jaikla
doaj   +1 more source

Digitally Programmable Voltage-Mode Universal Biquadratic Filter

open access: yesInternational Journal of Computer Applications, 2012
A single input multi-output voltage mode universal biquadratic filter has been presented. The circuit incorporates digital programmability employing three plus-type differential voltage current conveyors (DVCCs), two grounded capacitors and three resistors.
Mohd. Samar Ansari, Mohd. ZihaibKhan
openaire   +1 more source

On Canonical Structures of ARC Biquadratic Filters with Single Transconductor [PDF]

open access: yes, 2006
The paper deals with simple canonical structures of the second order ARC filters employing only single transconductor (OTA) and passive components R and C. A systematic design procedure of this circuits based on the given autonomous networks is described.
Dostal, T.
core   +1 more source

Large inverse tunneling magnetoresistance in Co$_2$Cr$_{0.6}$Fe$_{0.4}$Al/MgO/CoFe magnetic tunnel junctions

open access: yes, 2006
Magnetic tunnel junctions with the layer sequence Co$_2$Cr$_{0.6}$Fe$_{0.4}$Al/MgO/CoFe were fabricated by magnetron sputtering at room temperature (RT).
Braak, H.   +3 more
core   +1 more source

Synthesis of Cascadable DDCC-Based Universal Filter Using NAM

open access: yesApplied Sciences, 2015
A novel systematic approach for synthesizing DDCC-based voltage-mode biquadratic universal filters is proposed. The DDCCs are described by infinity-variables’ models of nullor-mirror elements which can be used in the nodal admittance matrix expansion ...
Huu-Duy Tran   +3 more
doaj   +1 more source

VDGA-Based Resistorless Mixed-Mode Universal Filter and Dual-Mode Quadrature Oscillator

open access: yesApplied Sciences
This study introduces an electronically tunable resistorless mixed-mode universal filter and dual-mode quadrature oscillator configuration utilizing merely two voltage differencing gain amplifiers and two grounded capacitors.
Orapin Channumsin   +3 more
doaj   +1 more source

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