Results 21 to 30 of about 134,640 (311)

Effect of auxiliary heating process on low power pulsed laser wire feeding deposition

Materials & Design, 2022
Low-power pulsed laser wire-feeding deposition has the advantages of low cost and less accumulation of heat. At the same time, the low laser power leads to the prominent problem of unfused defects in the deposited samples and the appearance of cold crack
Yu-Xin Sang, Mu-Zheng Xiao, Zhi-Jing Zhang, Qing-Yan Fu   +3 more
doaj   +1 more source

Laser acceleration of monoenergetic protons via a double layer emerging from an ultra-thin foil [PDF]

, 2009
We present theoretical and numerical studies of the acceleration of monoenergetic protons in a double layer formed by the laser irradiation of an ultra-thin film.
Shukla, Padma K., Liu, Chuan S.,, Sagdeev, Roald Z.,, Eliasson, Bengt,, Liu, Chuan S., Shao, Xi, Shao, Xi,, Sagdeev, Roald Z., Eliasson, Bengt, Shukla, Padma Kant,   +9 more
core   +1 more source

Laser heating effect on Raman analysis of CO2 co-existing as liquid and vapor in olivine-hosted melt inclusion bubbles

Volcanica, 2023
Raman spectroscopy has become the tool of choice for analyzing fluid inclusions and melt inclusion (MI) vapor bubbles as it allows the density of CO2-rich fluids to be quantified.
Charlotte L. DeVitre, Kyle Dayton, Esteban Gazel, Ayla Pamukçu, Glenn Gaetani, Penny E. Wieser   +5 more
doaj   +1 more source

Laser-Induced Heating in GdVO₄: Yb³⁺/Er³⁺ Nanocrystals for Thermometry [PDF]

, 2022
Photoluminescent temperature sensors based on gadolinium orthovanadate (GdVO4) doped with 10% ytterbium and 2% erbium are developed and dispersed in different media (lubricant fluid, sol–gel glass, and PDMS) to evaluate the best conditions for ...
Matteo Martini (179440), Sylvie Descartes (14127723), Catherine Journet (2357518), Yujiao Zhou (573776), Shaozhou He (14127726), Laurence Bois (1500523), Cédric Desroches (2123611), Didier Fournier (9468), Gilles Ledoux (1546828), David Philippon (5334950)   +9 more
core   +1 more source

Laser-Induced Thermal Treatment of Superficial Human Tumors: An Advanced Heating Strategy and Non-Arrhenius Law for Living Tissues

Frontiers in Thermal Engineering, 2022
The most interesting, but insufficiently known results obtained by the author in modeling laser-induced hyperthermia of human tumors are discussed. It is important that the traditional equation for the local bio-heat transfer does not work in superficial
Leonid A. Dombrovsky, Leonid A. Dombrovsky, Leonid A. Dombrovsky   +2 more
doaj   +1 more source

Laser microsculpting for the generation of robust diffractive security markings on the surface of metals [PDF]

, 2015
We report the development of a laser-based process for the direct writing (‘microsculpting’) of unique security markings (reflective phase holograms) on the surface of metals.
Wlodarczyk, Krystian Lukasz, Hand, Duncan P., Ardron, Marcus, Krystian L. Wlodarczyk, Hand, Duncan Paul; id_orcid, Waddie, Andrew John, Wlodarczyk, Krystian L., Duncan P. Hand, Andrew J. Waddie, Andrew Dunn, Nicholas J. Weston, Matthew D. Kidd, Marcus Ardron, Kidd, Matthew, Waddie, Andrew J., Weston, Nick J., Weston, Nicholas J., Dunn, Andrew, Kidd, Matthew D.   +18 more
core   +1 more source

Mechanical modeling of bending stiffness degradation for soft-honeycomb sandwich structure under CW laser heating

AIP Advances, 2020
Based on the theory of Reissner’s sandwich structure bending, a mechanical model of bending stiffness degradation for a soft-honeycomb sandwich structure under continuous wave (CW) laser heating was established by introducing the equivalent debonding ...
Jiawei Wang, Bin Li, Yongxiang Zhu, Weiping Liu, Lixiong Wu, Yuwei Lv   +5 more
doaj   +1 more source

Detection of cracks in metal sheets using pulsed laser generated ultrasound and EMAT detection [PDF]

, 2011
A pulsed Nd: YAG laser with an approximately Gaussian beam shape is directed onto the surface of an aluminium sheet at an energy density below which damage by laser ablation occurs, generating Lamb waves in the sheet.
Dixon, S., Burrows, S. E. (Susan E.), Dutton, B. (Ben), Fan, Yichao   +3 more
core   +1 more source

Laser-induced breakdown of an optically trapped gold nanoparticle for single cell transfection [PDF]

, 2013
The cell selective introduction of therapeutic agents remains a challenging problem. Here we demonstrate spatially controlled cavitation instigated by laser-induced breakdown of an optically trapped single gold nanoparticle of diameter 100 nm. The energy
Gunn-Moore, Frank J, Arita, Yoshihiko, Antkowiak, Maciej, Ploschner, Martin, Dholakia, Kishan, Yoshihiko Arita, Maciej Antkowiak, Frank Gunn-Moore, Gunn-Moore, Frank, Martin Ploschner, Kishan Dholakia   +10 more
core   +1 more source

Laser transformation hardening effect on hardening zone features and surface hardness of tool steel AISI D2

Mechanics and Advanced Technologies, 2017
The relationship of technological input regimes of the laser transformation hardening on change the hardening depth, hardening width, and hardening angle, as well as surface hardness of the tool steel AISI D2 using multifactor experiment with elements of
D. Lesyk, V. Dzhemelinskyi, S. Martinez, А. Lamikiz, О. Dаnylеikо, V. Hyzhevskyi   +5 more
doaj   +1 more source