Abstract: This paper deals with the vibration characteristics of permanent magnet synchronous motors (PMSMs) when there is time-varying load generated in the reciprocating compressor. As the ...

Russia’s frozen assets, worth hundreds of billions, sit locked in Western banks as pressure mounts to turn them into support for Ukraine. Germany has shifted its stance, pushing for new ways to ...

A damaged thread on a 992G wheel loader is carefully repaired to restore performance. Nationwide fish recall issued after health risk uncovered Navalny's widow releases images from 'inside' his cell ...

Q: How long is your delivery time? A: Generally it is 5-10 days if the goods are in stock. or it is 15-40 days if the goods are not in stock, it is according to quantity. Q: Do you provide samples ?