new symbols for 1-D HD

REF/symb.tex

@@ -24,6 +24,9 @@
 $[a,b]$ & arbitrary finite interval  & \\
 $\alpha$ & as suffix is species label or index &  \\
 $\alpha_n$ & perturbation amplitude &  \\
+$\alpha_n$ & scale factor for density source&  \\
+$\alpha_u$ & scale factor for momentum source &  \\
+$\alpha_\mathcal{E}$ & scale factor for energy source &  \\
 $\alpha^{Z_p\rightarrow Z}$ & partial dielectronic recombination rate coefficient  & $m^3 s^{-1}$  \\
 $\alpha^{Z\rightarrow Z_m}$ & partial dielectronic recombination rate coefficient  & $m^3 s^{-1}$  \\
 $b$ & minor radius of the torus (vertical) & $m$ \\
@@ -254,7 +257,8 @@
 $n_{ref}$ & reference number density of the plasma ions & $m^{-3}$ \\
 $N_{ref} $ & normalising or reference number density & $10^{18}$  \\
 $N$ & number density, may be scaled by $N_{ref}=10^{18}$ & $m^{-3}$ \\
-$n_0$ & initial number density & $m^{-3}$ \\
+$n_0$ & initial number density, shorthand for $n(0)$ & $m^{-3}$ \\
+$n_1$ & number density, shorthand for $n(1)$ & $m^{-3}$ \\
 $\nabla \cdot$ &  (K+S) Divergence & \\
 $\nabla \times$ &  (K+S) Curl & \\
 $\nabla^2$ &  (K+S) Laplacian & \\
@@ -421,7 +425,8 @@
 $t_s$ & characteristic timescale usually in seconds  & $s$ \\
 $t_H$ & Numerical hand-off time interval usually in seconds  & $s$ \\
 $t_R$ & Numerical ramp-up time interval usually in seconds  & $s$ \\
-$T_0$ & initial temperature (prefixed by $k$ implies energy in SI)  & $eV$ \\
+$T_0$ & initial temperature (prefixed by $k$ implies energy in SI), shorthand for $T(0)$  & $eV$ \\
+$T_1$ & temperature (prefixed by $k$ implies energy in SI), shorthand for $T(1)$  & $eV$ \\
 $T_{Kn}$ & reference temperature of Knudsen distribution (prefixed by $k$ implies energy in SI)  & $eV$ \\
 $T_{ref}$ & reference temperature (prefixed by $k$ implies energy in SI)  & $eV$ \\
 $T_s$ & characteristic temperature ($T_s=(L_s/t_s)^2/K_M$)  & $eV$ \\