In this group the median number of days from intake of mifepristone to surgical vacuum aspiration was 42 (range 8 107) (Table S1).
In this study, a vacuum air-intake device with an inlet diameter of 500 mm is designed for collecting space gas as the propellant of the air-breathing electric thruster, and it is comprised of a multi-hole plate, a big turbo, a small turbomolecular pump and a miniature scroll pump in series.
Only one woman in the examined cohort needed a vacuum aspiration on the actual day of the abortion; the majority made contact more than 1 week after the initial intake of mifepristone.
Pressure capabilities range from low vacuums at intake to special compressors capable of 60,000 psig or higher.
The space gas collection efficiency of the vacuum air-intake device is mainly determined by the performances of the multi-hole plate and the big turbo, which are investigated by Monte Carlo method; the storage of the collected gas with high pressure is mainly achieved by the small turbomolecular pump and the miniature scroll pump, which are analyzed experimentally.
The CVD system consisted of a horizontal quartz tube furnace, a vacuum system, an intake system, and a water bath.
Figure 1a illustrates the CVD experimental setup, which is composed of five parts: a temperature control heating device, a vacuum system, an intake system, a gas meter, and a water bath.
Important control parameters include warm water temperature and its intake rate, vacuum pressure in the evaporator, and cold water temperature.
It implements an on-off damping control mode by using engine intake manifold vacuum and a microprocessor based solenoid valve controller.
Since fuel injection does not rely on an intake manifold vacuum to deliver fuel, electronic fuel injection is used with turbocharged engines.
