Results 61 to 70 of about 550,631 (287)

0.5 V BD-MIMO DDTA-Based Universal Multimode Biquad Filter

open access: yesIEEE Access
A novel low-voltage universal mixed-mode filter that makes use of a multiple input/output differential difference transconductance amplifier (MIMO-DDTA) is presented in this study.
Chandra Shankar   +3 more
doaj   +1 more source

Design of Compact BPF and Planar Diplexer for UMTS using Embedded-scheme Resonator [PDF]

open access: yes, 2013
A compact planar diplexer utilizing embedded-scheme resonator (ESR) is designed for universal mobile telecommunications system (UMTS). The ESR is formed by embedding interdigital resonators into an open loop resonator.
Wang, G. M.   +3 more
core   +1 more source

Innate Immune Reprogramming Mediated by Endogenous Retroelement Dysregulation Drives Multiple Sclerosis Progression

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
Epigenetic reprogramming in hematopoietic stem and progenitor cells (HSPCs) and downstream myeloid cells, mediated by H3.3 downregulation and endogenous retroelement (ERE) overexpression, contributes to the progression of multiple sclerosis (MS). ABSTRACT Background Skewed myelopoiesis in the bone marrow has been identified as a key driver of multiple ...
Li‐Mei Xiao   +6 more
wiley   +1 more source

1-V Mixed-Mode Universal Filter Using Differential Difference Current Conveyor Transconductance Amplifiers

open access: yesApplied Sciences
This paper presents a mixed-mode universal filter using differential difference current conveyor transconductance amplifiers (DDCCTA). Despite using a minimum number of MOS differential pairs, the proposed DDCCTA is a multiple-input, multiple-output ...
Montree Kumngern   +2 more
doaj   +1 more source

An efficient quantum filter for multiphoton states

open access: yes, 2004
We propose a scheme for implementing a multipartite quantum filter that uses entangled photons as a resource. It is shown that the success probability for the 2-photon parity filter can be as high as 1/2, which is the highest that has so far been ...
Beige, Almut, Lim, Yuan Liang
core   +2 more sources

MOGAD Is the Most Common Cause of Isolated Optic Neuritis in Children

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives The study aimed to characterize the clinical features, etiologies, and outcomes of isolated, first‐time pediatric ON in the post‐MOG‐IgG era. Methods This was a single‐center retrospective cohort study at Texas Children's Hospital of patients diagnosed with first‐time ON between 2018–2024, with follow‐up data collected through 2025.
Chaitanya Aduru   +13 more
wiley   +1 more source

Novel Reconnection-Less Reconfigurable Filter Design Based on Unknown Nodal Voltages Method and Its Fractional-Order Counterpart

open access: yesElektronika ir Elektrotechnika, 2019
A novel solution of reconnection-less electronically reconfigurable filter is introduced in the paper. The filter is designed based on unknown nodal voltages method (MUNV) using operational transconductance amplifiers (OTAs) and variable gain amplifier ...
Lukas Langhammer   +4 more
doaj   +1 more source

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

open access: yes, 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

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Polarization--universal rejection filtering by ambichiral structures made of indefinite dielectric--magnetic materials

open access: yes, 2008
An ambichiral structure comprising sheets of an anisotropic dielectric material rejects normally incident plane waves of one circular polarization (CP) state but not of the other CP state, in its fundamental Bragg regime.
Akhlesh Lakhtakia   +12 more
core   +1 more source

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