Results 31 to 40 of about 1,526,878 (350)

Phase noise of oscillators with unsaturated amplifiers [PDF]

open access: yes, 2013
We study the role of amplifier saturation in eliminating feedback noise in self-sustained oscillators. We extend previous works that use a saturated amplifier to quench fluctuations in the feedback magnitude, while simultaneously tuning the oscillator to
Cross, M. C.   +3 more
core   +3 more sources

Amplifier circuit for a silicon-photomultiplier-coupled plastic scintillator detector

open access: yesHe jishu
BackgroundThe silicon photomultiplier (SiPM) is sensitive to environmental noise, its performance is greatly affected by ambient noise.PurposeThis study aims to design a negative-feedback selective amplifier circuit for SiPM coupled plastic scintillator ...
TANG Chenyang   +5 more
doaj   +1 more source

TECHNIQUES FOR VIBRATION RESISTANCE INCREASE OF QUARTZ PENDULUM ACCELEROMETER USING DIGITAL FEEDBACK [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. The paper considers approaches of vibration resistance increasing for quartz pendulum accelerometer with digital feedback amplifier and without further development of measuring element design or application of damping measures ...
Artem Yu. Nikolaenko   +1 more
doaj   +1 more source

The Mammalian MAPK/ERK Pathway Exhibits Properties of a Negative Feedback Amplifier

open access: yesScience Signaling, 2010
Analysis of ERK pathway circuitry suggests appropriate targets for inhibition, providing a guide for drug development. Biological Circuits Inform Drug Development The mitogen-activated protein kinase (MAPK) pathway involves a three-tiered kinase module ...
Oliver E. Sturm   +9 more
semanticscholar   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Active rc filter permits easy trade-off of amplifier gain and sensitivity to gain [PDF]

open access: yes, 1968
Passive RC network was designed with zeros of transmission in the right half of the complex frequency plane in the feedback loop of a simple negative-gain amplifier.
Kerwin, W. J., Shaffer, C. V.
core   +1 more source

Bifurcation analysis of stabilization circuits in an L-band LDMOS 60-W power amplifier [PDF]

open access: yes, 2005
n this letter, the global stability analysis of an L-band push-pull power amplifier is presented. The analysis is carried out for the amplifier operating in different modes, such as Class AB, Class B, and Class E/F, considering variations in the bias ...
Rutledge, David B.   +2 more
core   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Voltage regulator/amplifier is self-regulated [PDF]

open access: yes, 1967
Signal modulated, self-regulating voltage regulator/amplifier controls the output b-plus voltage in modulated regulator systems. It uses self-oscillation with feedback to a control circuit with a discontinuous amplitude action feedback ...
Day, W. E., Phillips, D. E.
core   +1 more source

A hybrid Cartesian loop and envelope modulated PA linear transmitter architecture [PDF]

open access: yes, 2003
A high efficiency and linearity PA solution is presented based on hybrid linearisation schemes that employ complementary techniques to overcome the weakness (or constraints) of either method on its own. In particular, the high linearity of Cartesian loop
Beach, MA, Mann, SI
core   +2 more sources

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