Results 1 to 10 of about 1,526,779 (251)
A Positive Feedback Amplifier Circuit That Regulates Interferon (IFN)-Stimulated Gene Expression and Controls Type I and Type II IFN Responses. [PDF]
Front Immunol, 2018 Interferon (IFN)-I and IFN-II both induce IFN-stimulated gene (ISG) expression through Janus kinase (JAK)-dependent phosphorylation of signal transducer and activator of transcription (STAT) 1 and STAT2. STAT1 homodimers, known as γ-activated factor (GAF)
Michalska A +3 more
europepmc +2 more sources
Novel Tunable Pseudoresistor-Based Chopper-Stabilized Capacitively Coupled Amplifier and Its Machine Learning-Based Application [PDF]
MicromachinesThis work presents a high-common-mode-rejection-ratio (CMRR) and high-gain FinFET-based bio-potential amplifier with a novel CMRR reduction technique. In this paper, a feedback buffer is used alongside a capacitively coupled chopper-stabilized circuit to
Mohammad Aleem Farshori +8 more
doaj +2 more sources
C-Band GaN Dual-Feedback Low-Noise Amplifier MMIC with High-Input Power Robustness [PDF]
Journal of Electromagnetic Engineering and Science, 2022 In this paper, using the 0.2 μm ETRI GaN HEMT process, we developed a C-band GaN dual-feedback low-noise amplifier MMIC for an RF receiver module that requires high-input power robustness.
Ha-Wuk Sung +5 more
doaj +1 more source
Highly Sensitive Whole-Cell Biosensor for Cadmium Detection Based on a Negative Feedback Circuit
Frontiers in Bioengineering and Biotechnology, 2021 Although many whole-cell biosensors (WCBs) for the detection of Cd2+ have been developed over the years, most lack sensitivity and specificity. In this paper, we developed a Cd2+ WCB with a negative feedback amplifier in P. putida KT2440.
Guangbao Zhang +4 more
doaj +1 more source
Photonics, 2023 Pulsed ytterbium-doped fiber amplifiers (YDFA) with ns-level signal width are important devices for obtaining high-power pulsed lasers. When some components in the amplifier are ineffective, e.g., the isolator or fiber is damaged, extra feedback light is
Xiaolei Bai +3 more
doaj +1 more source
Advances on CMOS Folded-Cascode Operational Transconductance [PDF]
AUT Journal of Electrical Engineering, 2022 In this paper, a tutorial review on several structural improvements of the CMOS folded-cascode Operational Transconductance Amplifier (OTA) is presented. After a brief discussion on the structure and operation of the conventional Folded-Cascode Amplifier,
Mohammad Yavari
doaj +1 more source
MINIMIZATION OF NOISE FLOOR LEVEL OF FIBER-OPTIC INTERFEROMETRIC SENSOR ARRAY BY ADJUSTMENT OF OPERATIONAL AMPLIFIER CASCADE PARAMETERS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2019 Subject of Research. The paper presents results of the experimental study on the dependence of the noise floor level of a fiber-optic interferometric sensor array on the gain factor of operational amplifiers located on the signal processing board and ...
Matvey V. Bykadorov +3 more
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Applied Sciences, 2023 We present a low-intensity noise single-frequency Yb-doped all-fiber amplifier oriented to space-borne gravitational wave detection. Relative intensity noise (RIN) below −70 dBc/Hz @ 1 mHz~1 Hz was achieved by virtue of feedback-loop-based intensity ...
Zaiyuan Wang +5 more
doaj +1 more source
Sensors, 2023 This paper presents a low-noise amplifier (LNA) with an integrated input and output matching network designed using RF-SOI technology. This LNA was designed with a resistive feedback topology and an inductive peaking technology to provide 600 MHz of ...
Min-Su Kim, Sang-Sun Yoo
doaj +1 more source
Penguat Audio Kelas D dengan Umpan Balik Tipe Butterworth
Jurnal Nasional Teknik Elektro, 2016 A class D amplifier would, in ideal sense, amplify signals without any noises and distortions which yield 100% efficiency and 0% Total Harmonic Distortion (THD). However, class D amplifiers have some drawbacks that lead to nonlinearity and increasing THD.
Gunawan Dewantoro +2 more
doaj +3 more sources