Results 51 to 60 of about 335,848 (315)
Structured beams invariant to coherent diffusion
Optics Express, 2020 Bessel beams are renowned members of a wide family of non-diffracting (propagation-invariant) fields. We report on experiments showing that non-diffracting fields are also immune to diffusion. We map the phase and magnitude of structured laser fields onto the spatial coherence between two internal states of warm atoms undergoing diffusion.
Slava Smartsev +4 more
openaire +3 more sources
FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Nuclear structure - The future with radioactive beams
Journal of Research of the National Institute of Standards and Technology, 2000 Some examples of new phenomena expected at extreme values of neutron and proton number are discussed, including soft dipole modes and neutron-proton pairing. First results on the N = Z nucleus (62)Ga are presented in the context of the competition between T = 0 and 1 states in odd-odd, self-conjugate nuclei.
openaire +2 more sources
Fail-safe optimization of beam structures [PDF]
Journal of Computational Design and Engineering, 2019 Abstract In the current work, a fail-safe optimization of beam structures is carried out. This approach may provide an insight into the robustness of lattice structures. The use of beam elements allows a commonly used engineering approach for obtaining a fail-safe design to be applied. This consists of removing one beam element at a time
Julian Kajo Lüdeker +1 more
openaire +1 more source
, 2023 Experimental modal testing was used to discover a crack in a beam structure in this study. Minor changes in beam geometry can theoretically alter vibration response.
Man, M. H.C. +2 more
core
Effect of terahertz irradiation on DNA damage repair in living cells
FEBS Open Bio, EarlyView.We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno +3 more
wiley +1 more source
Sensitivity Optimization of Surface Acoustic Wave Yarn Tension Sensor Based on Elastic Beam Theory
Sensors, 2022 The measurement of yarn tension has a direct impact on the product quality and production efficiency in the textile manufacturing process, and the surface acoustic wave (SAW) yarn tension sensor is a good option for detecting the yarn tension.
Yong Ding, Lili Gao, Wenke Lu
doaj +1 more source
A novel two‐beam accelerator (twobetron) [PDF]
, 1995 A new configuration is analyzed wherein a low current beam is accelerated to high energies (10’s of amps, 10’s of MeV) by a driver beam of high current and low energy (a few kiloamps,
Lau, Y. Y. +5 more
core +1 more source
Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Simulation of structural and electronic properties of amorphous tungsten oxycarbides
, 2012 Electron beam-induced deposition with tungsten hexacarbonyl W(CO)6 as precursors leads to granular deposits with varying compositions of tungsten, carbon and oxygen. Depending on the deposition conditions, the deposits are insulating or metallic.
Valentí, Roser +2 more
core +1 more source