dyi=dc_norm(2,nres+i)
dzi=dc_norm(3,nres+i)
dsci_inv=vbld_inv(i+nres)
-
+ xi=c(1,nres+i)
+ yi=c(2,nres+i)
+ zi=c(3,nres+i)
+ xi=mod(xi,boxxsize)
+ if (xi.lt.0) xi=xi+boxxsize
+ yi=mod(yi,boxysize)
+ if (yi.lt.0) yi=yi+boxysize
+ zi=mod(zi,boxzsize)
+ if (zi.lt.0) zi=zi+boxzsize
+ if ((zi.gt.bordlipbot)
+ &.and.(zi.lt.bordliptop)) then
+C the energy transfer exist
+ if (zi.lt.buflipbot) then
+C what fraction I am in
+ fracinbuf=1.0d0-
+ & ((zi-bordlipbot)/lipbufthick)
+C lipbufthick is thickenes of lipid buffore
+ sslipi=sscalelip(fracinbuf)
+ ssgradlipi=-sscagradlip(fracinbuf)/lipbufthick
+ elseif (zi.gt.bufliptop) then
+ fracinbuf=1.0d0-((bordliptop-zi)/lipbufthick)
+ sslipi=sscalelip(fracinbuf)
+ ssgradlipi=sscagradlip(fracinbuf)/lipbufthick
+ else
+ sslipi=1.0d0
+ ssgradlipi=0.0
+ endif
+ else
+ sslipi=0.0d0
+ ssgradlipi=0.0
+ endif
itypj=itype(j)
- xj=c(1,nres+j)-c(1,nres+i)
- yj=c(2,nres+j)-c(2,nres+i)
- zj=c(3,nres+j)-c(3,nres+i)
+ xj=c(1,nres+j)
+ yj=c(2,nres+j)
+ zj=c(3,nres+j)
+ xj=mod(xj,boxxsize)
+ if (xj.lt.0) xj=xj+boxxsize
+ yj=mod(yj,boxysize)
+ if (yj.lt.0) yj=yj+boxysize
+ zj=mod(zj,boxzsize)
+ if (zj.lt.0) zj=zj+boxzsize
+ if ((zj.gt.bordlipbot)
+ &.and.(zj.lt.bordliptop)) then
+C the energy transfer exist
+ if (zj.lt.buflipbot) then
+C what fraction I am in
+ fracinbuf=1.0d0-
+ & ((zj-bordlipbot)/lipbufthick)
+C lipbufthick is thickenes of lipid buffore
+ sslipj=sscalelip(fracinbuf)
+ ssgradlipj=-sscagradlip(fracinbuf)/lipbufthick
+ elseif (zj.gt.bufliptop) then
+ fracinbuf=1.0d0-((bordliptop-zj)/lipbufthick)
+ sslipj=sscalelip(fracinbuf)
+ ssgradlipj=sscagradlip(fracinbuf)/lipbufthick
+ else
+ sslipj=1.0d0
+ ssgradlipj=0.0
+ endif
+ else
+ sslipj=0.0d0
+ ssgradlipj=0.0
+ endif
+ aa=aa_lip(itypi,itypj)*(sslipi+sslipj)/2.0d0
+ & +aa_aq(itypi,itypj)*(2.0d0-sslipi-sslipj)/2.0d0
+ bb=bb_lip(itypi,itypj)*(sslipi+sslipj)/2.0d0
+ & +bb_aq(itypi,itypj)*(2.0d0-sslipi-sslipj)/2.0d0
+ xj=xj-xi
+ yj=yj-yi
+ zj=zj-zi
dxj=dc_norm(1,nres+j)
dyj=dc_norm(2,nres+j)
dzj=dc_norm(3,nres+j)
ljXs=sig-sig0ij
ljA=eps1*eps2rt**2*eps3rt**2
- ljB=ljA*bb(itypi,itypj)
- ljA=ljA*aa(itypi,itypj)
- ljxm=ljXs+(-2.0D0*aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
+ ljB=ljA*bb
+ ljA=ljA*aa
+ ljxm=ljXs+(-2.0D0*aa/bb)**(1.0D0/6.0D0)
ssXs=d0cm
deltat1=1.0d0-om1
c Stop and plot energy and derivative as a function of distance
if (checkstop) then
ssm=ssC-0.25D0*ssB*ssB/ssA
- ljm=-0.25D0*ljB*bb(itypi,itypj)/aa(itypi,itypj)
+ ljm=-0.25D0*ljB*bb/aa
if (ssm.lt.ljm .and.
& dabs(rij-0.5d0*(ssxm+ljxm)).lt.0.35d0*(ljxm-ssxm)) then
nicheck=1000
havebond=.false.
ljd=rij-ljXs
fac=(1.0D0/ljd)**expon
- e1=fac*fac*aa(itypi,itypj)
- e2=fac*bb(itypi,itypj)
+ e1=fac*fac*aa
+ e2=fac*bb
eij=eps1*eps2rt*eps3rt*(e1+e2)
C write(iout,*) eij,'TU?1'
eps2der=eij*eps3rt
eom12=fac1*d_ssxm(3)+fac2*d_xm(3)+h1*d_ssm(3)
else
havebond=.false.
- ljm=-0.25D0*ljB*bb(itypi,itypj)/aa(itypi,itypj)
- d_ljm(1)=-0.5D0*bb(itypi,itypj)/aa(itypi,itypj)*ljB
+ ljm=-0.25D0*ljB*bb/aa
+ d_ljm(1)=-0.5D0*bb/aa*ljB
d_ljm(2)=d_ljm(1)*(0.5D0*eps2rt_om2/eps2rt+alf2/eps3rt)
d_ljm(3)=d_ljm(1)*(0.5D0*eps1_om12+0.5D0*eps2rt_om12/eps2rt-
+ alf12/eps3rt)