Dangdai Shang Bao

1 results arranged by date

Chinese
dissident Wang Xiaoning was released today after serving a 10-year prison term
on charges of "incitement to subvert state power," a case built in good part on
client information supplied by Yahoo. Wang had used his Yahoo email account and
the discussion forum Yahoo Groups to spread ideas the government deemed
dangerous. His case closely parallels that of journalist Shi Tao, another Yahoo
user who fell afoul of the Chinese government. In 2005, Shi was convicted of "illegally
leaking state secrets abroad" and given a 10-year sentence. Yahoo had helped
authorities identify Shi through his account information.back-up rings which add substantially to the relatively large axial length. A helical spring is also contained within the counterbore, being interposed between the forward back-up ring and the sealing ring, to compressionally bias or preload the sealing ring against the rear back-up ring, whereby the sealing ring is axially squeezed to enlarge its outer diameter into sealed relation with the counterbore and to reduce its inner diameter into sealed engagement with the outer cylindrical surface of the plunger. When the plunger leaves its retracted and sealed position in a driven forward stroke, the biasing action of the spring is momentarily reduced and the rear back-up ring transiently undergoes an axial displacement along the plunger.
It has been found, however, that especially at high pumping capacities in the order