Abstract: A high-temperature quick-opening spherical sealing shut-off valve that includes a valve body, a valve seat, a valve cover, a valve clack, a valve rod, and a driving device for driving the valve rod to rotate. A friction-adjusting mechanism is mounted on the valve rod. The valve rod is arranged coaxially and connected to the valve clack. A gas outlet passage is formed in the valve body and the valve cover. The valve clack and valve seat are located in the path of the gas outlet passage. The valve seat is mounted in the valve body and has a first through hole communicating with the gas outlet passage. The valve clack has a second through hole corresponding to the first through hole. The gas outlet passage has three states: open when the first hole fully overlaps the second hole, half-open when the holes partially overlap, and closed when no overlap.

Abstract: Systems, methods, and non-transitory computer-readable media can initiate a messaging session with an interviewer, the messaging session associated with a scheduled interview to be conducted by the interviewer. A message is received in the messaging session from the interviewer. A pre-defined function is automatically performed based on the message.

Abstract: Systems, methods, and non-transitory computer-readable media can initiate a messaging session with an interviewer, the messaging session associated with a scheduled interview to be conducted by the interviewer. A message is received in the messaging session from the interviewer. A pre-defined function is automatically performed based on the message.