\documentclass[aspectratio=169,xcolor=svgnames]{beamer} 
\input{preambles}
% DOCUMENT INFORMATION
\title[SHORT TITLE]{Presentation  Title}
\subtitle{Sub Title}
\author[Main Author]{
	Main Author\supersc{1,2},
	Second Author\supersc{2},
	Third Author\supersc{3}
}
\institute[]{%
    \supersc{1}~Presenting author, email.address@memphis.edu \\
    \supersc{2}~Mechanical Engineering, The University of Memphis \\
    \supersc{3}~Mechanical Engineering, External Institute
}
\date{\today}
\begin{document}
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\begingroup
\makeatletter
\setlength{\hoffset}{.5\beamer@sidebarwidth}
\makeatother
\begin{frame}[plain]
\maketitle
\end{frame}
\endgroup
% TABLE OF CONTENTS
\begin{frame}
\frametitle{Table of Contents}
\tableofcontents
\end{frame}
\section{Introduction}
\begin{frame}{Background and Motivation}
   Frame content \cite{Knuth1986}.
\end{frame}
\section{Methodology}
\begin{frame}{Governing Equations}
   Convective form of Cauchy momentum equation is given as:
   \begin{equation}
       \dfrac{D\underline{u}}{Dt} = \dfrac{1}{\rho} \underline{\nabla} \cdot \left( -p\underline{I} + \underline{\tau} \right) + \underline{f}.
   \end{equation}
\end{frame}
\section{Results}
\begin{frame}{Interpretation of results}
    HWNP occurs at $\mathrm{Wi}=1.5$ \cite{Keunings2000}.
\end{frame}
\section{Conclusions}
\begin{frame}{Conclusions}
    \begin{itemize}
        \item First item
        \item Second item
        \item Third item
    \end{itemize}
\end{frame}
\section*{} % Not belong to any section
% REFERENCES
\begin{frame}[allowframebreaks]\frametitle{References}
    \bibliographystyle{ieeetr}
    \bibliography{references}
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% ACKNOWLEGMENT
\begin{frame}{Acknowledgment}
    This work was supported by the Funding Agency under grant number 12345.
\end{frame}
\end{document}