looking for RA or TA opportunities for master in usa universities(CA,NY, ...)

Hi

im 3rd year student in mechanical engineering in semnan university of iran.

overall it is my resmue:

GPA 3 (IRAN system : 14.9/20)

ielts ,gre in progress 

fluent in solidworks,visual nastran 4D,COSMOS MOTION

good in matlab(numerical computational),ansys,ansys workbench

2 paper in vibration field (exact : transmisibilty ,modal parameters) collaborating with one of our teachers and continue on other papers

1st in 7th pasta bridge National Championship -2012iran-

and now working on designing electric motorcycle National Championship hosted by shairf university of iran,i am the leader on our team(11 students)

which experiences should i take for apply to usa universities ? 

ori want to ask there is opportunities for me to apply in usa ?or not ?  

i hope you advise me to best.

Regard

a.asgari