Results 21 to 30 of about 2,070,930 (266)

Unresonant interaction of laser beams with microdroplets [PDF]

Journal of the European Optical Society-Rapid Publications, 2012
The interaction of distilled water droplets (volumes of 3-4 µl) with pulsed laser beams emitted at 532 nm is described. At 532 nm the distilled water absorption is very low and the interaction of a water droplet with the laser radiation is dominated by ...
Pascu M. L., Popescu G. V., Ticos C. M., Andrei I. R.   +3 more
doaj   +1 more source

A fast method for morphological analysis of laser drilling holes [PDF]

, 2010
Version éditeur : http://jla.aip.org/resource/1/jlapen/v22/i4/p127_s1?isAuthorized=noThis paper presents an original method for analyzing laser drilled holes.
SCHNEIDER, Matthieu, L. Berthe, BERTHE, Laurent, MULLER, Maryse, FABBRO, Rémy, R. Fabbro, M. Schneider, M. Muller   +7 more
core   +1 more source

A Feasibility Study on Monitoring Shelf Life of Bottled Natural Fruit Juice Using Laser-Induced Autofluorescence

International Journal of Optics, 2023
Shelf life of bottled natural fruit juice (BNFJ) provides relevant information on quality and authenticity for consumer protection. However, existing techniques for monitoring the shelf life of BNFJ are destructive and time-consuming.
Peter Osei-Wusu Adueming, Jerry Opoku-Ansah, Andrew Atiogbe Huzortey, Charles Lloyd Yeboah Amuah, Kwasi Nyandey, Moses Jojo Eghan, Benjamin Anderson, Samuel Sonko Sackey   +7 more
doaj   +1 more source

Laser adhesion test for thermal sprayed coatings on textured surface by laser [PDF]

, 2016
The laser shock adhesion test (LASAT) is a technique allowing the generation of high tensile stresses in materials. The LASAT consists in focusing a pulsed laser beam on a water-confined target.
BOUSTIE, Michel, S. Costil, COURAPIED, Damien, J. Cormier, BERTHE, Laurent, R. Kromer, CORMIER, Jonathan, KROMER, Robin, MILHET, Xavier, M. Boustie, X. Milhet, L. Berthe, D. Courapied, PEYRE, Patrice, COSTIL, Sophie, P. Peyre   +15 more
core   +1 more source

Experimental investigation of hydrodynamics of melt layer during laser cutting of steel [PDF]

, 2011
In laser cutting process, understanding of hydrodynamics of melt layer is significant, because it is an important factor which controls the final quality. In this work, we observed hydrodynamics of melt layer on kerf front in the case of laser cutting of
Remy Fabbro, Koji Hirano, FABBRO, Rémy, HIRANO, Koji   +3 more
core   +1 more source

Gas investigation for laser drilling [PDF]

, 2007
Version éditeur : http://jla.aip.org/resource/1/jlapen/v19/i3/p165_s1?isAuthorized=noThis article deals with the gas effect on percussion laser drilling in ms pulse duration range.
SCHNEIDER, Matthieu, Laurent Berthe, Maryse Muller, BERTHE, Laurent, NIVARD, Mariette, Mariette Nivard, FABBRO, Rémy, MULLER, Maryse, Matthieu Schneider, Rémy Fabbro   +9 more
core   +1 more source

The influence of position in overlap joints of Mg and Al alloys on microstructure and hardness of laser welds [PDF]

, 2013
Structure and properties of laser beam welding zone of dissimilar materials, AZ31 magnesium alloy and A5754 Aluminum alloy, are investigated. The microstructure and quality of the Mg/Al weld were studied by metallography, microhardness and optical ...
BANNOUR, Sana, MASSE, Jean-Eric, AUTRIC, Michel, K. Abderrazak, ABDERRAZAK, Kamel, J. E. Masse, H. Mhiri, S. Bannour, MATTEI, Simone, S. Mattei, M. Autric, MHIRI, Hatem   +11 more
core   +1 more source

Molecular screening tools to study Arabidopsis transcription factors

Frontiers in Plant Science, 2011
In the model plant Arabidopsis thaliana, more than 2000 genes are estimated to encode transcription factors (TFs), which clearly emphasizes the importance of transcriptional control. Although genomic approaches have generated large TF Open Reading Frame (
Nora eWehner, Christoph eWeiste, Wolfgang eDröge-Laser   +2 more
doaj   +1 more source

Experimental and numerical study of laser-assisted machining of Ti6Al4V titanium alloy [PDF]

, 2014
Laser-assisted machining combines several experimental parameters such as cutting speed, feed rate, depth of cut, laser power and distance between tool rake face and the laser beam axis.
GERMAIN, Guénaël, HAMDI, Hédi, AYED, Yessine, BEN SALEM, Wacef   +3 more
core   +1 more source

Melt Pool and Keyhole Behavior Analysis for Deep Penetration Laser Welding [PDF]

, 2010
One usually defines the main characteristic of the welding performances of a given laser system by its “penetration curve” that corresponds to the welding depth as a function of the welding speed Vw for a given set of operating parameters.
R Fabbro, Fabbro, R, FABBRO, Rémy
core   +1 more source