try to use latex to update blogs

$\Psi$ \[ \begin{align} \nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}} {\partial t} & = \frac{4\pi}{c}\vec{\mathbf{j}} \\ \nabla \cdot \vec{\mathbf{E}} & = 4 \pi \rho \\ \nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} & = \vec{\mathbf{0}} \\ \nabla \cdot \vec{\mathbf{B}} & = 0 \end{align} \]

asdfdsafsa \chapter{} \section{INTRODUCTION} \textbf{Duration}: January 2014 to Continuing \textbf{Name of the Employer}: School of Civil Engineering \textbf{Designation}: Research \section{BACKGROUND} \N Urban network sewage network serves