Results 51 to 60 of about 1,267,111 (263)

Dynamic range meter for radiofrequency amplifiers [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2009
The new measurement setup having increased on 20…30 dB the own dynamic range in comparison with the standard circuit of the dynamic range meter is offered and the rated value of an error bringing by setup in the worst case does not exceed ± 2,8 dB.
Drozd S. S.   +2 more
doaj  

Highly linear dual parallel Mach-Zehnder modulator incorporating MMI couplers [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2015
The strict requirements on splitting ratios of optical power and radio-frequency (RF) voltage affect the performance of the Dual Parallel Mach-Zehnder modulator (DPMZM).
Mao B., Yue P., Hou F., Liu Z.
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Astronomical Image Acquisition Using an Improved Track and Accumulate Method

open access: yesIEEE Access, 2017
“Track and Accumulate” (T&A) is an alternative astronomical image capture method where exposures are combined during imaging by aligning on a reference star.
Seng Cheong Loke
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Adaptive High-Dynamic Range Three-Dimensional Shape Measurement Using DMD Camera

open access: yesIEEE Access, 2019
The phase shifting profilometry for the object with high reflectivity variation is an important issue in equipment manufacturing, medical sciences, and entertainment industry.
Shou-Bo Zhao, Li-Yuan Liu, Ming-Yang Ma
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

ENERGY POTENTIAL OF SOLID STATE CW-MICROWAVE TRANCEIVERS

open access: yesНаучный вестник МГТУ ГА, 2016
The main parameters and block diagrams of CW-microwave transceivers are considered. The advisability of leading in conception of energy potential is founded. Qualitative assessment of three ways of CW-microwave transceivers composing is done.
A. G. Gorelik   +4 more
doaj  

Reconstruction of 3d video from 2d real-life sequences

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2013
In this paper, a novel method that permits to generate 3D video sequences using 2D real-life sequences is proposed. Reconstruction of 3D video sequence is realized using depth map computation and anaglyph synthesis. The depth map is formed employing the
Eduardo Ramos Diaz, Volodymyr Ponomaryov
doaj   +1 more source

BID: An Effective Blind Image Deblurring Scheme to Estimate the Blur Kernel for Various Scenarios

open access: yesIEEE Access, 2020
In recent years, image deblurring has been widely investigated. In order to solve this ill-posed problem, a variety of prior models have been proposed successively.
Hong Zhang   +3 more
doaj   +1 more source

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