To understand synthesis of e-NOS and n-NOS with respect to Ca and calmodulin
Does it mean that e-NOS and n-NOS are synthesized by mediation of Ca
  and calmodulin?


Calmodulin is activated by binding to calcium and NOS is activated by binding to Ca2+-calmodulin. The binding changes the structural conformation which renders the enzyme active. See this.


  Are e-NOS and n-NOS expressed on macrophages after induction [...]


Macrophages generally express iNOS upon induction by cytokines. The activity of iNOS is shown to be different in humans compared to mice; humans have low activity [ref]. However mouse macrophages have been shown to express eNOS constitutively and eNOS-knockout mice show reduced NFkB production and iNOS induction.