mechano-, mechan-; mechanico-; machin-
(Greek makhana, machana > Latin machina: machine, device, tool; an apparatus for applying mechanical power to do work; mekhanikos > machynen, decide a course of action, contrive, plot contrivance; a machine or the workings of machines)
2. The combination of minuscule electrical and mechanical components in a single device less than one millimeter across; such as, a valve or a motor.
Although micromechanical production processes and applications are still in the developmental process, efforts have been started to develop machines; called micromachines or micromechanisms, which will be 1,000 times smaller.
Such instruments can be constructed using a scanning tunneling microscope.
A single atom has been used as an electrical switch and an individual molecule has been used to convert alternating current into direct current.
A porous medium or a porous material is a solid (often called matrix) permeated by an interconnected network of pores (voids or empty spaces) filled with a fluid (liquid or gas).
It might be caused by the uncoupling of ventricular muscle contraction from electrical activity or it might be a result of cardiac damage with respiratory failure and cessation of cardiac venous return.