Results 41 to 50 of about 62,185 (340)

Compensated Current Injection circuit, theory and applications [PDF]

open access: yes, 2002
This paper presents a detailed description, analysis and example of practical application of a wide frequency band voltage-to-current converter. The converter is characterized by a combination of positive and negative feedback loops.
Giorgio Fontana   +3 more
core   +2 more sources

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

The Nonlinear Distortions in the Oscillatory System of Generator on CFOA

open access: yesActive and Passive Electronic Components, 2012
In recent years, many articles came out where one could find the analysis of oscillatory systems of electric sinusoid signals generators with amplifiers called CFOA—current feedback operational amplifiers.
Yuriy Konstantinovich Rybin
doaj   +1 more source

Integrable power gyrator [PDF]

open access: yes, 1973
Further study of Y-matrix and Z-matrix configuration has led to development of efficient, dependable high-quality gyrators. Efficiency of new gyrators may approach theoretical limit of 78.5% with further improvements.
Hochmair, E. S.
core   +1 more source

Remote atomic clock synchronization via satellites and optical fibers [PDF]

open access: yes, 2011
In the global network of institutions engaged with the realization of International Atomic Time (TAI), atomic clocks and time scales are compared by means of the Global Positioning System (GPS) and by employing telecommunication satellites for two-way ...
A. Filatov A.   +7 more
core   +3 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Chaos in a Non-Autonomous Inductorless Active-RC Circuit

open access: yesActive and Passive Electronic Components, 1995
Chaotic performance of a simple inductorless active-RC non-autonomous electronic circuit is reported. The circuit uses two operational amplifiers, an operational transconductance amplifier, a diode, two resistors, and one capacitor only.
Muhammad Taher Abuelma'atti   +1 more
doaj   +1 more source

INVESTIGATION OF CHARACTERISTICS OF PRECISION AMPLIFIERES

open access: yesТехнічна електродинаміка, 2020
A review of the principles construction of existing high voltage measuring amplifiers (HVMA) was carried out. Their frequency range was investigated. It is proposed to use a circuit of additively connected operational amplifiers with virtual power to ...
Ю.Ф. Тесик   +3 more
doaj   +1 more source

Penguat Jembatan dengan Untai Pembalik Fase

open access: yesElektrika, 2022
The maximum output voltage of the audio amplifier is limited to the magnitude of the power supply voltage of the power transistor or the operational amplifier on the final amplifier. This limits the maximum power of the audio amplifier output. The way to
Budihardja Murtianta, Erlina Sari
doaj   +1 more source

Isosceles detector provides maximum resolution in expanded range [PDF]

open access: yes, 1971
Dynamic range expansion system for radio frequency /RF/ signal detection equipment consists of RF amplifiers, RF amplitude modulated detectors, and operational amplifier.
Watterson, R. F.
core   +1 more source

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