نتایج جستجو برای: mass budget
تعداد نتایج: 509221 فیلتر نتایج به سال:
Background: The construction of metro lines is a high-risk project. Using a budget-based model for the safety units of metro construction projects can help safety managers to spend optimal budget allocation. The purpose of this study was to plan a budget model based on safety unit performance in an under construction metro station for better budget allocation using robust optimization. Methods...
The sea ice formation and dissipation processes are complicated involve many factors mechanisms, from the basal growth/melting, frazil formation, snow to dynamic process, etc. contribution of different extent among models over Antarctic region has not been systematically evaluated. In this study, we evaluate quantify uncertainties contributors Sea mass budget 15 Coupled Model Intercomparison Pr...
We study analytically a black-hole-ring system which is composed of a stationary axisymmetric ring of particles in orbit around a perturbed Kerr black hole of mass M . In particular, we calculate the shift in the orbital frequency of the innermost stable circular orbit (ISCO) due to the finite mass m of the orbiting ring. It is shown that for thin rings of half-thickness r M , the dominant fini...
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