Results 71 to 80 of about 878,105 (387)

Experimental demonstration of a W-band gyroklystron amplifier [PDF]

open access: yes, 1997
The experimental demonstration of a four cavity W-band (93 GHz) gyroklystron amplifier is reported. The gyroklystron has produced 67 kW peak output power and 28% efficiency in the TE011 mode using a 55 kV, 4.3 A electron beam.
Blank, M   +4 more
core   +1 more source

A grid amplifier [PDF]

open access: yesIEEE Microwave and Guided Wave Letters, 1991
A 50-MESFET grid amplifier is reported that has a gain of 11 dB at 3.3 GHz. The grid isolates the input from the output by using vertical polarization for the input beam and horizontal polarization for the transmitted output beam. The grid unit cell is a two-MESFET differential amplifier.
Kim, Moonil   +6 more
openaire   +4 more sources

The power of microRNA regulation—insights into immunity and metabolism

open access: yesFEBS Letters, EarlyView.
MicroRNAs are emerging as crucial regulators at the intersection of metabolism and immunity. This review examines how miRNAs coordinate glucose and lipid metabolism while simultaneously modulating T‐cell development and immune responses. Moreover, it highlights how cutting‐edge artificial intelligence applications can identify miRNA biomarkers ...
Stefania Oliveto   +2 more
wiley   +1 more source

Series transistors isolate amplifier from flyback voltage [PDF]

open access: yes, 1967
Circuit enables high sawtooth currents to be passed through a deflection coil and isolate the coil driving amplifier from the flyback voltage. It incorporates a switch consisting of transistors in series with the driving amplifier and deflection coil ...
Banks, W.
core   +1 more source

Amplification of Fluctuations in a Spinor Bose Einstein Condensate

open access: yes, 2008
Dynamical instabilities due to spin-mixing collisions in a $^{87}$Rb F=1 spinor Bose-Einstein condensate are used as an amplifier of quantum spin fluctuations.
Cohen, M. L.   +5 more
core   +1 more source

Identification of novel small molecule inhibitors of ETS transcription factors

open access: yesFEBS Letters, EarlyView.
ETS transcription factors play an essential role in tumourigenesis and are indispensable for sprouting angiogenesis, a hallmark of cancer, which fuels tumour expansion and dissemination. Thus, targeting ETS transcription factor function could represent an effective, multifaceted strategy to block tumour growth. The evolutionarily conserved E‐Twenty‐Six
Shaima Abdalla   +9 more
wiley   +1 more source

Shear modulated fluid amplifier Patent [PDF]

open access: yes, 1970
Shear modulated fluid amplifier of high pressure hydraulic vortex amplifier ...
Goldschmied, F. R.
core   +1 more source

Development and Evaluation of a Tutorial to Improve Students' Understanding of a Lock-in amplifier

open access: yes, 2016
A lock-in amplifier is a versatile instrument frequently used in physics research. However, many students struggle with the basic operating principles of a lock-in amplifier which can lead to a variety of difficulties. To improve students' understanding,
DeVore, Seth   +3 more
core   +2 more sources

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

2.45 GHz Active Isolator based on asymmetric coupler

open access: yesAutomatika, 2021
An active isolator achieving both high isolation and low insertion loss at 2.45 GHz is proposed. The isolator is based on an asymmetric coupler and is designed to leverage the gain and reverse isolation of an amplifier and coupling coefficients between ...
Ui-Gyu Choi   +3 more
doaj   +1 more source

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