var fDesc=new Array(); fDesc[0] = "This module describes and demonstrates some of the elementary thermophysical properties of interest in the study of fluid phases. Perform a molecular dynamics simulation of a system of molecules interacting according to the Lennard-Jones model potential. Properties calculated during the simulation include thermodynamic properties (the internal energy and the pressure), structural properties (the radial distribution function), and dynamic properties (the mean-square displacement as a function of time, and the velocity distribution). The module permits variation of the system density and temperture to examine their effect on the fluid behavior as characterized by these properties."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }