Results 51 to 60 of about 1,210,902 (300)

Chaos-assisted tunneling with cold atoms [PDF]

Physical Review E, 2001
submitted to Phys. Rev. E ; 16 pages, 13 figures; figures of better quality can be found at http://www.phys.univ-tours.fr/~mouchet/
Mouchet, Amaury, Miniatura, Christian, Kaiser, Robin, Grémaud, Benoît, Delande, Dominique   +4 more
openaire   +3 more sources

Protocol for quantifying miRNA trafficking across the endosomal membrane

FEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh, Kamalika Mukherjee, Suvendra N. Bhattacharyya   +2 more
wiley   +1 more source

An optically guided atomic fountain [PDF]

, 1999
This thesis describes the development of a laser-cooling experiment aimed at efficient transfer of cold atoms over a short distance, for loading into a conservative atom trap.
Davies, Hilary Jane, Davies, H.J.
core  

Fabrication of crystals from single metal atoms [PDF]

, 2014
Metal nanocrystals offer new concepts for the design of nanodevices with a range of potential applications. Currently the formation of metal nanocrystals cannot be controlled at the level of individual atoms. Here we describe a new general method for the
Smith, C.J., Beanland, R., Beanland, Richard, Hands-Portman, I., Nigel Kirby, Smith, Corinne J., Sánchez, Ana M., Dove, Andrew P., Rachel K. O’reilly, Corinne J. Smith, Joan J. Soldevila-barreda, O'Reilly, Rachel K.; id_orcid, Hands-Portman, Ian, Peter J. Sadler, O'Reilly, Rachel K., Ana M. Sanchez, Andrew P. Dove, Sanchez, A.M., O'Reilly, R.K., Richard J. Procter, Pitto-Barry, Anaïs, Kirby, Nigel, Sadler, P. J., Procter, R.J., Ian H, Sadler, P.J., Nicolas P. E. Barry, Soldevila-Barreda, Joan J., Sadler, Peter J., Procter, Richard J., Barry, Nicolas P. E., Richard Beanl, Kirby, N., Barry, Nicolas P.E., Dove, A.P.   +34 more
core   +1 more source

Fluorescence dynamics of an ensemble of cold atoms [PDF]

EPJ Web of Conferences, 2019
We have calculated the fluorescence dynamics of cold atoms excited by pulsed radiation. We have considered both Radon-Nikodym spectral method and multi-stage relaxation model describing collective effects in cold atomic gases.
Bozhokin Sergey, Kuraptsev Alexey
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Excited state spatial distributions in a cold strontium gas [PDF]

, 2012
This thesis describes the development of a new technique for measuring the spatial distribution of Rydberg atoms in a cold strontium gas. Strontium atoms are cooled and trapped in a magneto-optical trap and coherently excited to Rydberg states in a two ...
LOCHEAD, GRAHAM
core  

Novel schemes for the optical manipulation of atoms and molecules [PDF]

, 2009
The range of atoms which can be cooled by lasers is limited to those which have a closed two level structure. Several schemes have been proposed which aim to extend this range by using coherent control of the particle momenta, but none have yet been ...
Bateman, James
core   +1 more source

Cold atom microwave clock based on intracavity cooling in China space station

npj Microgravity
Atomic clocks with higher frequency stability and accuracy than traditional space-borne atomic clocks are the cornerstone of long-term autonomous operation of space-time-frequency systems.
Siminda Deng, Wei Ren, Jingfeng Xiang, Jianbo Zhao, Lin Li, Di Zhang, JinYin Wan, Yanling Meng, XiaoJun Jiang, Tang Li, Liang Liu, Desheng Lü   +11 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source