Recombinant human type I collagen was modified by using an ion beam to control the biocompatibility for the substrates of medical devices.
High energy x-rays are a great way to probe matter, but it's hard to control a beam of them, since they shoot straight through lenses.
Another half-wave plate was placed after the first beam splitter in beam 2 to control the optical power at the sample plane.
A half-wave plate was placed before the cube beam splitter to control the optical power between these two beams.
The electron beam is easier to control and requires a shorter period of treatment (seconds).
The modulated LED light is passed through a beam expander in order to control the beam size and form it into a parallel ray.
Divergent light reflected from the membrane is collimated by a convex lens and directed through an aperture to control beam diameter before entering a BK-7 prism (Melles-Griot, Carlsbad, CA) in the standard Kretschmann configuration, allowing light to couple into the sample flowcell.
It is assumed that the fixed free elastic beam is attached to the servomotor which uses PD control to achieve the desired angular rotation, at the same time, the shear force measured at the root of the beam is used as a feedback to control the beam tip vibration.
A galvanometer (galvo) was used to control the beam dwell time, with a shortest gating window time of 5 ms. For each average laser power and beam dwell time used, blastomeres were surgically-ablated near the blastomere-yolk interface by a single pulsing event of the galvo.
Laser beams can be used to control the shape and direction of electrical discharges.
