\documentclass[11pt]{article}
\openup 1 \jot
\begin{document}

\medskip\hrule\medskip
\noindent
{\bf Title}

\medskip\noindent
{\bf Speaker, affiliation, and E-mail address}

\medskip\noindent
{\bf Co-authors} (if any)

\medskip\noindent
{\bf Abstract}

\end{document}