Results 101 to 110 of about 1,179,836 (177)

Low-energy helium-neon laser ensures knee cartilage repair: An experimental short-term assay in rabbits

, 2008
Objectives. the purpose of this study was to evaluate the influence of low-power helium-neon laser oil cartilage damage using all experimental short-term assay in rabbits. Material and Methods.
Renno, Ana Claudia Muniz [UNIFESP], Silva, Paulo Ricardo Giusti da [UNIFESP], Ana Claudia Muniz Renno, Ribeiro, Daniel Araki [UNIFESP], Maria Stella Peccin, Daniel Araki Ribeiro, Peccin, Maria Stella [UNIFESP], Paulo Ricardo G da Silva   +7 more
core   +1 more source

Laser microspot welding of copper

A new procedure for laser spot welding of thin copper stripes was developed based on measuring the calibrated reflectivity coaxially to the laser beam and using this signal for in situ control of the laser power. Experiments with a power ramp of r=3.1 MW/
Amorosi, S., Schwob, H. P., Sidler, T., Hertzberg, J., Salathe, R. P.   +4 more
core   +1 more source

Fatigue behavior of laser clad round steel bars

, 2015
Laser cladding is an overlay welding method to manufacture high performance, fusion bonded metal, and metal matrix composite coatings on metallic substrates with low dilution.
Kaplan, Alexander,, Poutala, J.,, Rasehorn, I.,, I. Rasehorn, Vuoristo, P.,, P. Vuoristo, Tuominen, J.,, J. Näkki, J. Poutala, Näkki, J.,, Peltola, T.,, J. Miettinen, Miettinen, J.,, Alam, M. Minhaj,, J. Tuominen, A. F. H. Kaplan, M. M. Alam, T. Peltola   +17 more
core   +1 more source

Finite element modeling of laser forming of aluminum matrix composites

, 2006
Much work has been done on modeling of laser forming over the past decades, but most of the models were developed for monolithic materials. In this article, a microstructure integrated finite element model is developed for the first time to predict the ...
Chan, KC, C. Y. Tang, Liu, FR, K. C. Chan, Tang, CY, F. R. Liu   +5 more
core   +1 more source

Femtosecond laser post-processing of metal parts produced by laser additive manufacturing

, 2013
High-repetition rate femtosecond laser radiation was utilized to improve surface quality of metal parts manufactured by laser additive techniques. Different laser scanning approaches were utilized to increase the ablation efficiency and to improve the ...
Bonhoff, Tobias, Kelbassa, Ingomar, Mingareev, Ilya, Richardson, Martin, Biermann, Tim, Meiners, Wilhelm, El-Sherif, Ashraf   +6 more
core   +1 more source

Evaluación de características físicas y químicas de los rellenos minerales de piedra caliza y polvo de piedra en la formulación de los morteros asfálticos

Infraestructura Vial, 2012
El objetivo de este trabajo es resaltar la importancia del estudio de los materiales denominados rellenos minerales, de diferentes orígenes minerales, empleados en la formulación de mezclas bituminosas, específicamente en los morteros.
Breno Salgado Barra, Leto Momm
doaj  

High-order harmonic generation in laser-aligned molecules.

, 2005
Strong-field interactions with molecules are not as well understood as for atoms. In atoms, both fully quantum-mechanical calculations [1] and semiclassical models [2] reproduce single-electron ionization and related phenomena—high-harmonic generation ...
VELOTTA, RAFFAELE
core  

The role of oxygen pressure in laser cutting mild steels

, 1996
This paper presents the results of an experimental program investigating the effects of using high pressure oxygen as assist gas in combination with a pulsed laser while cutting medium thick mild steel plates.
Ivarson, Anders,, Powell, John,, J. Powell, A. Ivarson, Magnusson, Claes,, C. Magnusson   +5 more
core   +1 more source

Technical and clinical aspects of the histocompatibility crossmatch assay in solid organ transplantation [PDF]

Biomedica, 2022
Arrunátegui AM, Ramón DS, Viola LM, Olsen LG, Jaramillo A.   +4 more
europepmc   +1 more source

Laser cutting stainless steel with dual focus lenses

, 2000
In this article the performance of a new type of lens is compared with traditional meniscus lenses for CO sub 2 laser cutting of medium ( > 5 mm) section stainless steel. Dual Focus lenses produce two focus spots, one above the other.
Powell, John,, J. Powell, H. Engstrom, Tan, W.K.,, D. Rudd, C. Wykes, Maclennan, P,, P. Maclennan, Engström, Hans,, W. K. Tan, Rudd, D.,, Wykes, C.,   +11 more
core   +1 more source