Results 61 to 70 of about 7,907,205 (365)
Adaptive optics for control of the laser welding process
EPJ Web of Conferences, 2013 The laser head with fixed focus optics is commonly used for the deep penetration laser welding. In such case the geometry and position of the beam waist are defined by the focusing lens.
Jedlička Petr +3 more
doaj +1 more source
Driving superfluidity with photoassociation [PDF]
, 2000 We theoretically examine photoassociation of a two-component Fermi degenerate gas. Our focus is on adjusting the atom-atom interaction, and thereby increasing the critical temperature of the BCS transition to the superfluid state.
Cote, Robin +3 more
core +3 more sources
FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
The Design of QUASl-OPTICS for Dual-Channel SIS Receiver [PDF]
Journal of Astronomy and Space Sciences, 1997 We have designed the quasi optics of the dual channel receiver to observe the radio sources with 100GHz-band and 150GHz-band simultaneously. We introduced the general quasi optics and the relation between the Gaussian beam and thin lens approximation. We
J. A. Park +8 more
doaj
Social context prevents heat hormetic effects against mutagens during fish development
FEBS Letters, EarlyView.This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere +5 more
wiley +1 more source
Light ray modulation controls optical system alignment [PDF]
, 1965 Light ray modulator maintains focus in optical system subject to severe thermal gradients, vibration and shock.
core +1 more source
Full-field hard x-ray microscopy with interdigitated silicon lenses [PDF]
, 2015 Full-field x-ray microscopy using x-ray objectives has become a mainstay of the biological and materials sciences. However, the inefficiency of existing objectives at x-ray energies above 15 keV has limited the technique to weakly absorbing or two ...
Detlefs, Carsten +6 more
core +2 more sources
Quantum repeaters based on atomic ensembles and linear optics [PDF]
, 2009 The distribution of quantum states over long distances is limited by photon loss. Straightforward amplification as in classical telecommunications is not an option in quantum communication because of the no-cloning theorem. This problem could be overcome
N. Sangouard +3 more
semanticscholar +1 more source
FEBS Letters, EarlyView.Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke +2 more
wiley +1 more source
Post processing of differential images for direct extrasolar planet detection from the ground [PDF]
, 2006 The direct imaging from the ground of extrasolar planets has become today a major astronomical and biological focus. This kind of imaging requires simultaneously the use of a dedicated high performance Adaptive Optics [AO] system and a differential ...
Fusco, T. +3 more
core +3 more sources