DSMC study of homogeneous condensation of water in supersonic expansions

2012 ◽  
Author(s):  
Arnaud Borner ◽  
Zheng Li ◽  
Deborah A. Levin
Keyword(s):  
Homogeneous Condensation ◽  
Supersonic Expansions

Modeling the tyrosine–sugar interactions in supersonic expansions: glucopyranose–phenol clusters

2016 ◽  
Vol 18 (18) ◽  
pp. 12457-12465 ◽  
Author(s):  
Imanol Usabiaga ◽  
Jorge González ◽  
Pedro F. Arnáiz ◽  
Iker León ◽  
Emilio J. Cocinero ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Laser Spectroscopy ◽  
Supersonic Expansions

We present here the structure of glucopyranoe–phenol complexes, as revealed by mass-resolved laser spectroscopy and DFT calculations.

MAGNETIC PROPERITES OF IRON CLUSTERS IN A MOLECULAR BEAM

1992 ◽  
Vol 06 (23n24) ◽  
pp. 3733-3745 ◽  
Author(s):  
Walt A. de Heer ◽  
Jörg A. Becker ◽  
Isabelle M.L. Billas ◽  
Paolo Milani ◽  
A. Châtelain
Keyword(s):  
Molecular Beam ◽  
Vibrational Temperature ◽  
Rotational Temperature ◽  
Magnetic Moments ◽  
Larmor Precession ◽  
Iron Clusters ◽  
Resonant Coupling ◽  
Field Temperature ◽  
Supersonic Expansions ◽  
Laser Heated

Magnetic properties of small iron clusters in a molecular beam are investigated by examining their deflections in a Stern-Gerlach magnet. The magnetization is probed as function of magnetic field, temperature and cluster size. The clusters are either heated with light from a pulsed laser which affects the vibrational temperature, or cooled in supersonic expansions which primarily affect the rotational temperature. We find that at temperatures up to 1500 K the magnetic moments of laser heated Fe 120–140 clusters are much larger than predicted either in the Heisenberg model or compared with the bulk values suggesting a stronger exchange interaction. Furthermore, rotationally cold clusters show anomalously magnetization which is non-linear with the applied field. This effect is found to be related to the anisotropy coupling of the total spin with the cluster framework. A model taking this effect into account and assuming a resonant coupling between the rotations and the Larmor precession of the spins gives good qualitative agreement with the observations.

Theoretical and experimental characterization of supersonic expansions from slit sources

1982 ◽  
Vol 87 (6) ◽  
pp. 515-519 ◽  
Author(s):  
Mark Sulkes ◽  
Christophe Jouvet ◽  
Stuart A Rice
Keyword(s):  
Experimental Characterization ◽  
Supersonic Expansions
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