chapterstyle madsen in memoir class

Put in preamble

\chapterstyle{madsen}

\renewcommand\partnamefont{\normalfont\Large\scshape}
\renewcommand\partnumfont{\normalfont\Large\scshape}
\renewcommand\parttitlefont{\normalfont\Huge\bfseries\sffamily}
\setsecheadstyle{\normalfont\Large\bfseries\sffamily}