1
مهندسی شیمی::
ماکروسکوپی
We are going from the macroscopic to the microscopic.
If an object can be understood in detail at the microscopic level, we can use our knowledge to apply it to the macroscopic level.
This observation has led us to further investigate theories based on the laws of physics that deal with macroscopic phenomena.
Traditional physics, which is certainly efficient and sufficient in the macroscopic domain, only deals with large objects (remember that there are nearly 1023 atoms per cm3 in a solid), while quantum physics only deals with small discrete objects.
One of the first applications of machines using X-rays was in the macroscopic domain.
واژگان شبکه مترجمین ایران
2
شیمی::
ماکروسکوپی
3.1.4 Recovering Macroscopic Behaviors 46
They are based on the used of simplified interatomic potentials, that allow deriving most of the macroscopic thermomechanical properties of mate- rials.
In any case, this technique seems to be, despite its inherent computational cost, an excellent tool for extracting the main behavior of multi-scale models and analyzing localized phenomena that are coupled with the macroscopic scale via the use of appropriate multi-scale techniques or by applying adequate bridges between different zones analyzed at different scales.
When molecular dynamics is applied to a system in equilibrium, it allows us to determine the temporal evolution of positions, velocities and forces that, using the concepts of statistical mechanics, leads to the calculation of macroscopic properties: elastic constants, surface energy, etc.
Despite the impressive advances in computational capabilities, high performance computing and the use of massive parallel computing platforms, the state-of-the-art does not allow for the treatment of macroscopic systems encoun- tered in practical applications of physics, chemistry and engineering.
واژگان شبکه مترجمین ایران