\documentclass[titlepage,12pt]{article}

\usepackage{graphics}
\usepackage{epsfig}
\usepackage{ulem}
\usepackage{pstcol}
\usepackage{calc}
\usepackage{ifthen}
\usepackage{overcite}

\def\etal{{\it et al.}}
\def\eg{{\it e.g.}}
\def\microns{$\mu \mathrm{m}$}
\def\relationship{$a/b$ versus $D_{e}$ relationship}
\def\x{$x$}
\def\y{$y$}
\def\z{$z$}
\def\xy{$(x,y)$}
\def\xz{$(x,z)$}
\def\xyz{$(x,y,z)$}
\def\xyzd{$(x,y,z,d)$}
\def\xyzdbar{$(x,y,z,\overline{d})$}
\def\dbar{$\overline{d}$}
\def\bigspace{\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad}
\def\medspace{\quad\quad\quad\quad\quad\quad}
\def\spacer{\uline{\quad\quad\quad\quad}}

\textwidth=6.6in 
\textheight=9.1in 
\oddsidemargin=-0.0625in
\evensidemargin=-0.0625in 
\topmargin=-0.5in

\begin{document}


\psset{unit=5mm}
\begin{pspicture}(20,10)
\newcounter{X}\setcounter{X}{1}
\newcounter{Y}\setcounter{Y}{1}
\newcounter{Xp}\setcounter{Xp}{1}
\newcounter{Yp}\setcounter{Yp}{1}
\newcounter{bigX}\setcounter{bigX}{1}
\newcounter{bigXp}\setcounter{bigXp}{1}

% LHS
\whiledo{\value{Y}<8}
{%
\setcounter{Yp}{\value{Y}+1}
\setcounter{X}{1}

	\whiledo{\value{X}<8}
	{%
	\setcounter{Xp}{\value{X}+1}
		\psframe[linecolor=black,fillstyle=solid,fillcolor=black]
		(\theX,\theY)(\theXp,\theYp)
	%
	\stepcounter{X}
	}

%
\stepcounter{Y}
}

\setcounter{X}{11}
\setcounter{Y}{1}

% RHS
\whiledo{\value{Y}<8}
{%
\setcounter{Yp}{\value{Y}+1}
\setcounter{X}{11}

	\whiledo{\value{X}<18}
	{%
	\setcounter{Xp}{\value{X}+1}
		\psframe[linecolor=black,fillstyle=solid,fillcolor=black]
		(\theX,\theY)(\theXp,\theYp)
	%
	\stepcounter{X}
	}

%
\stepcounter{Y}
}

% Make white pixels.
\setcounter{X}{3}
\setcounter{Xp}{4}
\setcounter{Y}{3}
\setcounter{Yp}{4}

\whiledo{\value{X}<6}
{%
	\psframe[linecolor=black,fillstyle=solid,fillcolor=white]
	(\theX,\theY)(\theXp,\theYp)
	\setcounter{bigX}{\value{X}+10}
	\setcounter{bigXp}{\value{Xp}+10}
	\psframe[linecolor=black,fillstyle=solid,fillcolor=white]
	(\thebigX,\theY)(\thebigXp,\theYp)
	%
	\stepcounter{X}
	\stepcounter{Xp}
}

\setcounter{X}{3}
\setcounter{Xp}{4}
\setcounter{Y}{5}
\setcounter{Yp}{6}

\whiledo{\value{X}<6}
{%
	\psframe[linecolor=black,fillstyle=solid,fillcolor=white]
	(\theX,\theY)(\theXp,\theYp)
	\setcounter{bigX}{\value{X}+10}
	\setcounter{bigXp}{\value{Xp}+10}
	\psframe[linecolor=black,fillstyle=solid,fillcolor=white]
	(\thebigX,\theY)(\thebigXp,\theYp)
	%
	\stepcounter{X}
	\stepcounter{Xp}
}


\psframe[linecolor=black,fillstyle=solid,fillcolor=white](3,4)(4,5)
\psframe[linecolor=black,fillstyle=solid,fillcolor=white](5,4)(6,5)
\psframe[linecolor=black,fillstyle=solid,fillcolor=white](15,4)(16,5)


\end{pspicture}

\end{document}
