The phrase "a flow of matter" is correct and usable in written English.
It can be used in contexts discussing physics, chemistry, or any situation where the movement or transfer of physical substances is relevant.
Example: "In the study of fluid dynamics, we often analyze a flow of matter to understand how different substances interact with each other."
Alternatives: "a stream of material" or "a movement of substances".
And the site follows a few celebrities in particular because they guarantee a flow of legal matter: Joe Francis, the producer of the spring-break "Girls Gone Wild" video series, Liza Minnelli, Courtney Love and Catherine Zeta-Jones.
The physical concept of a NESS (also known simply as a steady-state in the MCA community) applies to that of a driven system, such as a living organism, with a constant flow of matter (transforming nutrients to waste) through the system and a corresponding dissipation of free energy [ 9].
The deformation mechanism for the grain-boundary phase is modelled as a diffusional flow of matter through the grain boundary.
From the continuity equation (35) follows that it should be conserved in absence of a net total flow of matter in or out of the domain.
The compressed network is already a result per se, but its visual inspection remains difficult; the many cycles it contains allow for a reading of the flow of matter in many possible directions, thereby suggesting several possible causal scenarios.
Each story corresponds to a possible scenario explaining the flow of matter between the metabolites of interest.
Briefly, stories are subgraphs that summarize the flow of matter from a set of source metabolites to a set of target metabolites.
Taken together, these observations raise the possibility that there are so many different ways of organizing the flow of matter through a metabolic network -- many of which still unknown -- that individual reactions may only be weakly constrained in their evolution.
That the emission is often in the form of a burst is probably caused by something interrupting the flow of matter onto (or into) the compact object or by an eclipsing orbit of the binary system.
Students who had taken LSET had a better understanding of the core concepts of the flow of matter and energy in living systems and could relate them to the fundamental principles of the conservation of energy and matter.
