Abstract and paper submission (conference management feature) component in joomla 2.5

Abstract and paper submission (conference management feature) component in
joomla 2.5

we are looking for an abstract and paper submission component in joomla 2.5.
It should have the following features:
1) Session Proposal.
2) Program committee review.
3) Abstract and poster submission
4) paper submission
5) peer review.
Is there any components with these features in joomla 2.5 or atleast some
of the features so that we can customize it to our needs.?