Magnetic effects (viscosity) at the nanoscale (based on nanoscience) (Ph.D.)
Author and Researcher: Engineer Afshin Rashid
Note: Nano-scale water is not the psychological water we use on a large scale. Small objects in the water are surrounded by a sticky substance like honey or sugar water. The nanoscale fluid properties are prominent in the viscosity.
The fluid volume that travels the specified path at the specified time changes just like the viscosity if we denote this velocity by v, denote the magnitude of the motion (mass multiplied by velocity) with p, and A is the area of the surface. µ The viscosity of a liquid is the smaller the Reynolds number, the greater the impact of the viscosity, so a bacterium that is one million barcons smaller than a human binds the water bacteria one million times more viscous than us.
Inertia force = dt / dt; qa2v2
µav = F the viscosity force
Reynolds number Re = qav / µ = Force / F
Magnetic effects (viscosity) at the nanoscale
In nanotechnology, the most complex is the effect of particle size on the magnetic properties of matter. A ferromagnetic mass material is known as magnetic fields, each containing thousands of atoms. In a magnetic field the direction of rotation of electrons is the same, but different magnetic fields have different directions of rotation. Magnetic phase change occurs when a large magnetic field aligns all magnetic fields in one direction. For example, in the case of nanoparticles, no specific magnetic fields can be seen. It is therefore thought that there would be simpler systems in these materials, but in fact there is something to the contrary .
These properties are influenced by the quantum property of particle size, which is usually less than the size of magnetic fields in solids, so a particle behaves like a single atom having a large magnetic moment.
Author: Engineer Afshin Rashid
PhD student in Nano-Microelectronics at Islamic Azad University, Science and Research Branch, Tehran