2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/4005Understanding of the structure evolution in the Universe has been greatly advanced with a rapid progress in high-resolution cosmological simulations. In this contribution, we report a new set of cosmological simulations with $512^3$ ($\sim 1.4\times 10^8$) particles in a simulation box of $100\mpc$. With this unprecedented resolution, we have successfully overcomed the over-merging problem while retaining a cosmological volume size that is crucial for the statistical analysis. The simulations are being applied to studying important astrophysical problems that are sensitive to the simulation resolution.4 pages, observe.sty files, talk at the 5th RESCEU International Symp. on New Trends in Theoretical and Observational Cosmology (13-16 November, 2001: Tokyo, Japan)Astrophysicstext