A microkernel implements all drivers as user-space programs, and implements core features like IPC in the kernel itself. A monolithic kernel, however, implements the drivers as a part of the kernel...
The main difference between porcelain and fine bone china is the inclusion of up to 50 percent bone ash in the porcelain mixture that makes up bone china. China is also typically fired at a lower temperature than porcelain, which is double-fired at very high temperatures. Keep Learning.
Porcelain, on the other hand, is a manufactured product that is created to mimic the look of natural stone. To the untrained eye, some high quality porcelain tiles look and feel incredibly like natural stone, but the expert will be able to distinguish the difference, as porcelain tiles are not individually unique.