Abstract: The paper presents a mathematical model of a piston compressor which is a part of an oxygen gas generator. Taking into account the structural parameters of the compressor, as well as the ...

Heart valves keep blood flowing in the right direction between the heart's four chambers. Mechanical valves last longer than bioprosthetic valves but require lifelong blood thinners. Most of the time, ...

After getting a mechanical heart valve, you need to take blood thinners to prevent clots. People with mechanical valves usually take warfarin, which can cause bleeding, so it's important to monitor ...