Results 71 to 80 of about 3,949,769 (293)
All-Optical Photonic Microwave Phase Shifter Requiring Only a Single DC Voltage Control
IEEE Photonics Journal, 2016 An all-optical photonic microwave phase shifter that requires only a single dc voltage control to realize continuous 0° to 360° radio-frequency (RF) signal phase shift over a wide frequency range is presented.
T. Li +4 more
doaj +1 more source
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
Audio Frequency π/2 Phase-shifter [PDF]
A method for the realization of a wideband π/2 phase-shifter for audio frequencies is presented. It is shown that the approximated transfer function of the phase-shifter can be realized in a transversal filter configuration.
ハシグチ, スミヒサ +4 more
core +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
IEEE AccessThis paper presents the self-body-biasing effects of a vector-sum phase shifter(VSPS) in 0.13- $\mu $ m CMOS technology. The self-body-biasing network is simply implemented by connecting the drain and body terminals of a vector-sum MOSFET amplifier ...
Junhan Lim +2 more
doaj +1 more source
A monolithic 44 GHz analog phase shifter [PDF]
, 1989 The design, fabrication and evaluation of an analog, 44 GHz monolithic phase shifter is presented. The phase shifter is a reflection-type phase shifter which utilizes a pair of varactor diodes and a Lange coupler.
Liu, Carol Susan
core
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
IEEE AccessIn this study, a flexible and fully printable four element patch antenna array bent on a cylindrical-shaped surface for main beam steering is proposed.
Muhammad Ayaz +6 more
doaj +1 more source
Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers
FEBS Letters, EarlyView.Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui +4 more
wiley +1 more source