Buscar
Mostrando ítems 1-10 de 2542
Ultrashort laser pulse retrieval using single-shot VAMPIRE
(IEEE, 2014)
Characterizing ultrashort laser pulses is a challenging task. By now several methods are established which can be divided into interferometric methods like SPIDER (spectral phase interferometry for direct electric field ...
Limitations of the strong field approximation in ionization of the hydrogen atom by ultrashort pulses
(Springer, 2009-12)
We present a theoretical study of the ionization of hydrogen atoms as a result of the interaction with an ultrashort external electric field. Doubly-differential momentum distributions and angular momentum distributions ...
Effect of the sequence of nisin and pulsed electric fields treatments and mechanisms involved in the inactivation of Listeria innocua in whey
(Elsevier, 2007-03)
The combination of nisin and pulsed electric fields (PEF) on Listeria innocua in liquid whey protein concentrate (LWPC) were studied with the purpose of enhancing nisin antibacterial action. The efficiency of the combined ...
Fermentation assisted by pulsed electric field and ultrasound: A review
(MDPI, 2018-01)
Various novel techniques are proposed to improve process efficiency, quality, and safety of fermented food products. Ultrasound and pulsed electric field (PEF) are versatile technologies that can be employed in conjunction ...
Application of vacuum pulse and moderate electric field in osmodehydration of apple using concentrated juice.
(2017)
The moderate electric field (MEF) is an emerging technology
in the food industry, which consists of an alternating
electrical current through food; the main purpose is heating
food with the inner energy generated. This ...
Effects of rotation in the laser-pulse photoassociation in a thermal gas of atoms
(Spie-int Soc Optical Engineering, 2013-01-01)
Photoassociation is a possible route for the formation of chemical bonds. In this process, the binding of colliding atoms can be induced by means of a laser field. Photoassociation has been studied in the ultracold regime ...
Frequencies of virulence genes and pulse field gel electrophoresis fingerprints in Escherichia coli isolates from canine pyometra
(Elsevier B.V., 2014-11-01)
Escherichia coli is the most common bacterial agent isolated from canine pyometra. The frequencies of 24 virulence genes and pulsed field gel electrophoresis (PFGE) profiles were determined for 23 E. coli isolates from ...
openPFGE: An open source and low cost pulsed-field gel electrophoresis equipment
(Elsevier, 2020)
DNA electrophoresis is a fundamental technique in molecular biology that allows the separation of DNA molecules up to similar to 50 Kbp. Pulsed-field gel electrophoresis [PFGE] is a variation of the conventional DNA ...
Multiple pulses improve electroporation efficiency in Agrobacterium tumefaciens
(Pontificia Universidad Católica de Valparaíso, 2008)