Results 51 to 60 of about 641,452 (310)

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

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

FET comparator detects analog signal levels without loading analog device [PDF]

open access: yes, 1966
FET comparator circuit detects discrete analog computer output levels without excessively loading the output amplifier of the computer. An FET common source amplifier is coupled by a differential amplifier to a bistable transistor flip-flop. This circuit
Wallace, H. L.
core   +1 more source

Phase conjugate fluorozirconate fibre laser operating at 800nm [PDF]

open access: yes, 1992
We report phase-conjugate feedback into a fluorozirconate optical fiber amplifier at infrared wavelengths. By using a semiconductor laser diode at 807 nm, a grating is established in photorefractive BaTiO3 that, in the ring configuration, provides ...
Carter   +12 more
core   +1 more source

CCT4 promotes tunneling nanotube formation

open access: yesFEBS Letters, EarlyView.
Tunneling nanotubes (TNTs) are membranous tunnel‐like structures that transport molecules and organelles between cells. They vary in thickness, and thick nanotubes often contain microtubules in addition to actin fibers. We found that cells expressing monomeric CCT4 generate many thick TNTs with tubulin.
Miyu Enomoto   +3 more
wiley   +1 more source

Coincidence time resolution of radiation detector based on 6×6 mm2 ToF SiPM detectors with different readout schemes

open access: yesFrontiers in Physics, 2023
Introduction: Nowadays, attention is growing on the Silicon Photomultipliers (SiPMs) detector for many applications, especially in nuclear medicine. In Positron Emission Tomography (PET) scanner, timing performance of a PET detector plays a significant ...
Changyu Li   +4 more
doaj   +1 more source

Induction motor control system with voltage controlled oscillator circuit [PDF]

open access: yes, 1973
A voltage controlled oscillator circuit is reported in which there are employed first and second differential amplifiers. The first differential amplifier, being employed as an integrator, develops equal and opposite slopes proportional to an input ...
Currie, J. R.   +2 more
core   +1 more source

Rad27/FEN1 prevents accumulation of Okazaki fragments and ribosomal DNA copy number changes

open access: yesFEBS Letters, EarlyView.
The budding yeast Rad27 is a structure‐specific endonuclease. Here, the authors reveal that Rad27 is crucial for maintaining the stability of the ribosomal RNA gene (rDNA) region. Rad27 deficiency leads to the accumulation of Okazaki fragments and changes in rDNA copy number.
Tsugumi Yamaji   +3 more
wiley   +1 more source

A Dielectric Resonator Antenna-in-Package Design and its Electromagnetic Interference Investigation on Amplifier

open access: yesIEEE Access, 2018
A highly shielded and easy-integration antenna-in-package (AiP) configuration based on the rectangular hollow dielectric resonator antenna (DRA) is presented.
Sheng-Jie Guo   +3 more
doaj   +1 more source

Design and Simulation of A New Proposed Single-Slope Integrating Analog-to- Digital Converter System Based on Non-Linear Amplifiers [PDF]

open access: yesEngineering and Technology Journal, 2010
In this paper, a unipolar single-slope integrating analog-to-digitalconverter(ADC) is discussed, designed, and simulated, whereas, its conversiontime is less than that of the dual-slope integrating ADC.The proposed systemconsists of logarithmic amplifier,
Azzad B. Saeed
doaj   +1 more source

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