This ,.port w" pr'pared II an account of work sponsorld by the United Stlt" Government. Ntlth.r the United Stat •• nor the United Stlt •• 0.partment of Eneray, nor Iny of th,I, employ ... , make any warranty. IXpr ... or 'mplled. or ••• um •• any Iqa' liability or r'lPonllbllity for the accuracy. comphttl", .. , or usefuln ... of Iny Informltlon, Ipp,ratuI, product, or proc ... dllCloHd. or r.pr ... nt. that It, u .. would not infringe prlvatlly owned rll1htl. A,f.ranca ha,aln to any IIPlclUe commlrclal product, proc .... or "rvlcl by tr.de nlm., mark. mlnufactur.r, or oth,rwl ... don not nec .... 'itv cannltyte or Imply Itt IndorHmlnt, r,commandatlon. or flvorlnl by the United Stat .. GOv.rnm.nt or Iny 1,lney thl,eof. The vl~. and opinion, of luthor •• Jlpr .... d h.reln do not n.c .... rlly stete or refl.ct tho .. of the Unlt.d Stat •• Gov.rnm.nt or any .. ency th.r.of.