Flow adjustment based on particle movement in response to magnetic field

A system with flow restriction, the system comprising:

• a container comprising an opening;
• magnetically sensitive particles that are retained within the container;
• a magnetic structure configured to apply a magnetic field to cause at least one of the magnetically sensitive particles to block at least part of the opening to thereby restrict flow of fluid through the opening;
• and
• at least one of a mesh, a membrane, a heating element, or a piezoelectric element configured to adjust flow of the fluid.

A system with flow restriction, the system comprising:

• a container comprising an opening;
• magnetically sensitive particles that are retained within the container, wherein the magnetically sensitive particles have a coating that reacts to a specific element or material;
• and
• a magnetic structure configured to apply a magnetic field to cause at least one of the magnetically sensitive particles to block at least part of the opening to thereby restrict flow of fluid through the opening.