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Medfags, biomed fags, bio fags, mech fags, biomech fags, and fags in general, I've a quesiton for you regarding heart valves.
The image shows common types of mechanical heart valves and their flow profiles.
Apparently, tri-leaflet heartvalves appear to be most ideal because their flow-profile resembles that of nautral heart valves; the central 'jet' of current thru the valve is greater than in the others, so there's not as much sheer stress or turbulance created by the current passing thru the valve.
This is good because it's not conducive to platelet activation; too much stress on the blood supply increases likelihood of blood clotting.
Still, patients with mechanical heart valve implants generally require treatment by some sort of blood-thinner; but lower dose for more ideal valves.
My thinking is, if bi-leaflet valves are more ideal than tilting-disk and ball-cage valves, and if tri-leaflet valves are more ideal than bi-leaflet valves, why not simply add more leaflets to produce more ideal flow?
Quantum Mechanics Interpretation
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Wanted to let you know my idea for an interpretation of QM.
I always felt uncomfortable with the copenhagen interpretation, because it states that a wave "collapses" when oberserved, but there is nothing that distinguishes an observer from just another system. Being an observer or a measurement gets some kind of magical power.
i think theres an easy way around this.
when two quantum systems interact they form another system, which is at its whole described not by the states of the individual system, but by its own states in a new combined basis. An example for this would be a system of 2 electrons that couple to a spin 1 or 0 system with a combined spin and wavefunktion determined by clebsch gordan coefficients.
Now say one electron is an observer. Its own state would be defined as pure either up or down. Then it measures the other electrons spin. The waveform of that other electron collapses and a fully derermined system is formed depending on the outcome of the measurement.
From the outside the system is still in a superposition.
So assume for a distant observer everything is always in a superposition of all possible states and the measuring process is just the process of coupling two systems from an inside point of view.
i think this is a concept not to far from both the many worlds an the copenhagen interpretation, but somehow more elegant. Probably someone thought of it already. Is there any inconsistency with the math? What are your thoughts /sci?