Results 101 to 110 of about 1,652,410 (283)

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

Applied 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, Jetwara Tangjit, Tattaya Pukkalanun, Worapong Tangsrirat   +3 more
doaj   +1 more source

Voltage-Mode Universal Biquadratic Filter Using Two OTAs

Active and Passive Electronic Components, 2004
A four-inputs and two-outputs voltage-mode universal biquadratic filter using only two operational transconductance amplifiers (OTAs) and two capacitors is presented.
Jiun-Wei Horng
doaj   +1 more source

CFOA Based Active Universal Filter Realized With Multiple Feedback Filter, Low- Pass Filter and High Pass Filter

, 2018
In this paper, CFOA based Universal Filters design is presented which is the combination of narrow band pass filter (multiple feedback filter), Low pass filter and High pass filter. The proposed circuit realizes all the standard of frequency responses of
Taruna Kanwar, Vijay Laxmi Kalyani, Sweety Kalwani   +2 more
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Low-Voltage Current-Mode Analog Filter Using Current Differencing Transconductance Amplifier

IEEE Access
This paper presents a new low-voltage, low-power current-mode active filter with three inputs and seven outputs. The design is implemented using three current differencing transconductance amplifiers (CDTAs) and two grounded capacitors.
Montree Kumngern, Fabian Khateb, Tomasz Kulej   +2 more
doaj   +1 more source

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

Advanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo, Mi Jeong Lee, Hyun Wook Kang, Seonhee Byeon, Soo‐Kyoung Choi, Nakwon Choi, Seung‐Woo Cho, Yoonhee Jin   +7 more
wiley   +1 more source

Optimisation of multiplier-less FIR filter design techniques [PDF]

This thesis is concerned with the design of multiplier-less (ML) finite impulse response (FIR) digital filters. The use of multiplier-less digital filters results in simplified filtering structures, better throughput rates and higher speed.
Cemes, Radovan
core   +4 more sources

Programmable Current-Conveyor-Based Voltage-Mode Filter with Single Input and Five Outputs

Active and Passive Electronic Components, 1995
A new universal voltage-mode active-filter with single input and five outputs is presented. The parameters of the proposed filter are programmable and the filter uses grounded capacitors and resistors.
Muhammad Taher Abuelma'atti, Azhar Quddus   +1 more
doaj   +1 more source

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

Advanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee, Yun‐Tae Kim, Hwarang Choi, Sanghwan Park, Seongyeop Lim, Chang Young Lee   +5 more
wiley   +1 more source

CDBA-Based Universal Biquad Filter and Quadrature Oscillator

Active and Passive Electronic Components, 2008
The voltage-mode universal biquadratic filter and sinusoidal quadrature oscillator based on the use of current differencing buffered amplifiers (CDBAs) as active components have been proposed in this paper.
Worapong Tangsrirat, Tattaya Pukkalanun, Wanlop Surakampontorn   +2 more
doaj   +1 more source