Results 51 to 60 of about 7,039,787 (310)

Functional-Spatial-Decoupling Design of a Ring-Shaped Germanium-Doped Fiber for Distributed Acoustic Sensing

open access: yesIEEE Access
Existing Ge-doped and nanoparticle-doped methods typically enhance Rayleigh scattering by increasing material inhomogeneity; however, they simultaneously introduce additional transmission losses, limiting their application in long-distance distributed ...
Jiucai Li   +8 more
doaj   +1 more source

All-Optical Temporal Differentiator Based on the Axis-Aligned SFS Fiber Structure Filter

open access: yesIEEE Access, 2021
In this paper, the axis-aligned single mode- four mode- single mode (SFS) fiber structure filter is proposed to be an all-optical temporal differentiator.
Tingya Yin   +3 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS 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

Wavelet—Artificial Neural Network Receiver for Indoor Optical Wireless Communications [PDF]

open access: yes, 2011
The multipath induced intersymbol interference (ISI) and fluorescent light interference (FLI) are the two most important system impairments that affect the performance of indoor optical wireless communication (OWC) systems.
Ghassemlooy, Zabih   +5 more
core   +1 more source

A Sensitized Plastic Fiber Sensor for Multi-Point Bending Measurement Based on Deep Learning

open access: yesIEEE Photonics Journal, 2021
As we all know, the change of mode interference caused by the curvature change in multi-mode fiber (MMF) can be well represented as a fiber specklegram recorded by CCD (Charge-coupled Device).
Shun Lu   +3 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS 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

End-to-End Real-Time Demonstration of the Slotted, SDN-Controlled NEPHELE Optical Datacenter Network

open access: yes, 2020
The NEPHELE hybrid electro-optical datacenter network (DCN) architecture is proposed as a dynamic network solution to provide high capacity, scalability, and cost efficiency in comparison to the existing DCN infrastructures.
Kyriakos, Angelos   +24 more
core   +1 more source

Deep subwavelength graphene-dielectric hybrid plasmonic waveguide for compact photonic integration

open access: yesResults in Physics, 2021
In this paper, we propose a novel graphene-dielectric hybrid plasmonic waveguide (GDHPW). The fundamental hybrid mode characteristics guided by the GDHPW are numerically investigated.
Xueqing He   +5 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

A network analysis optical frequency-domain reflectometer for distributed vibration sensing

open access: yes, 2023
We demonstrate the use of a network analysis optical frequency domain reflectometer for dynamic and distributed vibration sensing.
Vallifuoco R.   +5 more
core  

Home - About - Disclaimer - Privacy