Results 51 to 60 of about 139,447 (303)

RF transversal filter using an AOTF [PDF]

, 2004
An acoustooptic tunable filter (AOTF) is employed in an optical system to obtain an independently tunable and reconfigurable radio-frequency transversal filter.
Mansoori, S, Mitchell, A
core   +1 more source

The matrix pencil as a tunable filter

Journal of Magnetic Resonance
Despite inherent sensitivity constraints, nuclear magnetic resonance (NMR) plays an indispensable role in probing molecular structures and dynamics across scientific disciplines. Remarkably, while extensive efforts have targeted instrumental and experimental sensitivity improvements, comparatively little focus has been dedicated to sensitivity ...
S N, Fricke, B J, Balcom, D C, Kaseman, M P, Augustine   +3 more
openaire   +2 more sources

Design of tunable microstrip bandstop filter

2016 Asia-Pacific Microwave Conference (APMC), 2016
In this paper, a novel microstrip bandstop filter with tunable center frequency and bandwidth is introduced. A dual-mode square loop resonator and three varactor diodes are used to achieve the tunability operation. The dual-mode square loop resonator is coupled to a straight transmission line that connects input and output ports.
Gorur, A.K., Karpuz, Ceyhun, Gorur, A., Doğan, Engin, Uysal, Barış   +4 more
openaire   +7 more sources

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Dynamic single/dual channel filter with smart temperature set based on electromagnetic tunable FBG

Tongxin xuebao, 2007
A cascaded fiber Bragg gratings filter module was proposed,which can act either as a tunable single channel filter with its central wavelength and/or bandwidth being tunable,or as a double channel filter with its central wavelength being tunable.The ...
ZHANG Duo-ying1, LIU Min1, LI Jian-dong2
doaj   +2 more sources

Design of Reflective Tunable Structural Color Metasurface Based on Guided-Mode Resonance Filter and Sb₂S₃

Photonics, 2023
In recent years, dynamically tunable structural color has attracted great interest. Here, we introduce the guided-mode resonance (GMR) filter and the phase-change material Sb2S3 to design a reflective optical metasurface to produce tunable structural ...
Shishang Luo, Zhenfu Zhang, Xin He, Zhaojian Zhang, Xin Li, Meicheng Fu, Junbo Yang   +6 more
doaj   +1 more source

Frequency response and tunability of grating-assisted directional couplers [PDF]

, 1991
The spectral properties of grating-assisted directional couplers are studied using an improved coupled mode formulation. Key parameters for the design of these structures, such as the grating period, the coupling length, and other structural parameters ...
Griffel, Giora, Yariv, Amnon
core   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

A Reconfigurable Pseudohairpin Filter Based on MEMS Switches

Sensors, 2022
This work presents a bandpass-reconfigurable planar pseudohairpin filter based on RF-MEMS switches. Hairpin-line structures are preferred to design microstrip filters because this class of filters offers a more compact size, and, in general, hairpin ...
Massimo Donelli, Mohammedhusen Manekiya, Girolamo Tagliapietra, Jacopo Iannacci   +3 more
doaj   +1 more source

Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation

Advanced Engineering Materials, EarlyView.
ZnS‐MXene‐TiO2 nanocomposite heterojunction for photocatalytic decomposition of this methylene blue dye (MB) greatly improves light absorption, charge separation, and active site area. Two‐dimensional MXene forms nanocomposites by easily combining them with 0D (quantum dots), 1D (tube and wire), 2D (plane and sheet), and 3D (particle and lamellar ...
Latiful Kabir, Dohyun Kim, Minho Song, Jae Doc Na, Young Jun Joo, Kwang Youn Cho, Karna Wijaya, Won‐Chun Oh   +7 more
wiley   +1 more source