Experimental investigation of the initial-state alignment dependence in the energy pooling process:Ca(4s4p3P1)+Ca(4s4p3P1)→Ca(4s4p1P1)+Ca(4s2)

1998 ◽  
Vol 58 (3) ◽  
pp. 2136-2147 ◽  
Author(s):  
Harold V. Parks ◽  
Eileen M. Spain ◽  
John E. Smedley ◽  
Stephen R. Leone
Keyword(s):  
Experimental Investigation ◽  
Initial State ◽  
Energy Pooling

Two-dimensional vortex-dipole interactions in a stratified fluid

1992 ◽  
Vol 236 ◽  
pp. 665-689 ◽  
Author(s):  
S. I. Voropayev ◽  
Ya. D. Afanasyev
Keyword(s):  
Experimental Investigation ◽  
Vertical Wall ◽  
Stratified Fluid ◽  
Two Dimensional ◽  
Initial State ◽  
Vorticity Distribution ◽  
Vortex Dipoles ◽  
Dipole Interactions ◽  
Vortex Dipole ◽  
State Of Rest

Planar motion produced when a viscous fluid is forced from an initial state of rest is studied. We consider a vortex dipole produced by the action of a point force (Cantwell 1986), and a vortex quadrupole produced by the action of two equal forces of opposite direction. We also present results from an experimental investigation into the dynamics of the interactions between vortex dipoles as well as between vortex dipoles and a vertical wall in a stratified fluid. Theoretical consideration reveals that the dynamics of two-dimensional vortex-dipole interactions are determined by two main governing parameters: the dipolar intensity of the vorticity distribution (momentum) and the quadrupolar intensity of the vorticity distribution of the flow. We document details of different basic types of interactions and present a physical interpretation of the results obtained in terms of vortex multipoles: dipoles, quadrupoles and their combinations.

Ratchet Effect in a Triple Delta-Kicked Model

2014 ◽  
Vol 687-691 ◽  
pp. 692-695
Author(s):  
Lei Chen ◽  
Chao Xiong ◽  
Jin Xiao ◽  
Hong Chun Yuan
Keyword(s):  
Experimental Investigation ◽  
Quantum Transport ◽  
Cold Atoms ◽  
Previous Model ◽  
Ratchet Effect ◽  
Initial State ◽  
Quantum Resonances ◽  
Zero Momentum

We investigate the quantum ratchet effect in a triple delta-kicked model. Three symmetric flashing potentials alternately act on a particle with a symmetric and homogeneous initial state of zero momentum. Ratchet currents emerge when quantum resonances are excited. Ratchet currents in the triple model may be stronger than those in the previous model. Our work expands upon the quantum delta-kicked model and may contribute to experimental investigation of the quantum transport of cold atoms.

Rosonant laser excitation of potassium vapour: Experimental investigation of energy-pooling collisions and plasma production

1982 ◽  
Vol 1 (1) ◽  
pp. 49-69 ◽  
Author(s):  
M. Allegrini ◽  
S. Gozzini ◽  
I. Longo ◽  
P. Savino ◽  
P. Bicchi
Keyword(s):  
Experimental Investigation ◽  
Laser Excitation ◽  
Plasma Production ◽  
Energy Pooling

Tensile Failure of 55-Nitinol Wire

1975 ◽  
Vol 33 ◽  
pp. 46-47
Author(s):  
F. I. Grace
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Stoichiometric Composition ◽  
Tensile Failure ◽  
Initial State ◽  
Initial Shape ◽  
Nitinol Wire ◽  
Cscl Type ◽  
Shear Transformation

An interest in NiTi alloys with near stoichiometric composition (55 NiTi) has intensified since they were found to exhibit a unique mechanical shape memory effect at the Naval Ordnance Laboratory some twelve years ago (thus refered to as NITINOL alloys). Since then, the microstructural mechanisms associated with the shape memory effect have been investigated and several interesting engineering applications have appeared.The shape memory effect implies that the alloy deformed from an initial shape will spontaneously return to that initial state upon heating. This behavior is reported to be related to a diffusionless shear transformation which takes place between similar but slightly different CsCl type structures.

Do moods and expectancies have unique or interactive effects?: An experimental investigation

2014 ◽  
Author(s):  
Shane Close ◽  
Victoria Adkins ◽  
Kandice Perry ◽  
Katheryn Eckles ◽  
Jill Brown ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Interactive Effects

Visually-induced motion sickness: An experimental investigation

2004 ◽  
Author(s):  
Mustapha Mouloua ◽  
Janan Smither ◽  
Robert C. Kennedy ◽  
Robert S. Kenned ◽  
Dan Compton ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Motion Sickness ◽  
Visually Induced Motion Sickness ◽  
Induced Motion

No Strings Attached: An Experimental Investigation of Attachment and Hooking-Up

2013 ◽  
Author(s):  
Sarah Edwards ◽  
Lindsey Brinker ◽  
Kathryn A. Bradshaw ◽  
Jennifer A. Munch ◽  
Rachel E. Brenner
Keyword(s):  
Experimental Investigation ◽  
Hooking Up
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