1. Improved Molecular Collision Models for Nonequilibrium Rarefied Gases Open Access Author: Parsons, Neal S Title: Improved Molecular Collision Models for Nonequilibrium Rarefied Gases Graduate Program: Aerospace Engineering Keywords: Rarefied GasesDirect Simulation Monte CarloNonequilibrium GasesReacting FlowsHypersonicsPlanetary Science File: Download ParsonsDissertation.pdf Committee Members: Deborah A Levin, Dissertation Advisor/Co-AdvisorAdrianus C Van Duin, Committee MemberMichael Matthew Micci, Committee MemberMichael John Janik, Committee Member