71results about How to "Improve opening rate" patented technology

The invention describes a bypass valve (1) that can be used as a divert air valve. Bypass valves (1) that work in the closed or opened position in a force-balanced or pressure-balanced manner are known. During the opening of the bypass valve (1), a lower pressure is produced in a gap (25) between a valve closing body (3) and a valve seat (20), which pressure destroys the force balance and thus loads a movable valve unit (2) in the closing direction. In order to prevent this, according to the invention pressure equalization openings (24) are embodied or arranged with respect to the gap (25) in such a way that a reduced pressure is introduced into the chambers (7, 8) in the interior of the valve, so that the closing-operative force is distinctly reduced. By these means, the opening times of such a bypass valve can be distinctly reduced.

The embodiment of the invention discloses a message pushing method and device, equipment and a storage medium. The method comprises the following steps: obtaining a target push message and a target push amount, and according to the activity value of each user in the user set and the estimated click rate of each user for the target push message, obtaining the target push message; sorting the usersin the user set according to the user attribute of each user and the correlation between the user attribute of each user and the target user attribute of the target push message, and further sending the target push message to the matched target user. According to the technical scheme of the embodiment of the invention, after the target push message is obtained, the user is sorted according to theactivity value of the user, the estimated click rate of the user to the target push message and the correlation between the user attribute of the user and the target user attribute of the target pushmessage, so the target push message is pushed to the matched target crowd, the message push efficiency is improved, and the message push accuracy is improved.

The invention relates to apparatus for breaking thrombus and aspirating the thrombus. The apparatus comprises: an aspirating rotary grinding hand-held system which integrates a rotary grinding head driving device, an aspirating device, a power supply device and a control device; a micro-catheter device which is communicated with the aspirating device and the rotary grinding head driving device; awaste liquid collecting device which is connected to the aspirating device, wherein the aspirating device and the waste liquid collecting device form an airtight passage; and a far-end rotary grindinghead device which is connected to the rotary grinding head driving device through a connecting mandrel, wherein the power supply device provides power for the rotary grinding head driving device. Thefar-end rotary grinding head device and the connecting mandrel are accommodated in the inner cavity of the micro-catheter device; and the control device controls the aspirating device and the rotarygrinding head driving device, so that the aspirating device and the rotary grinding head driving device can run simultaneously. The aspirating action of the invention is carried out synchronously withthe mechanical thrombus breaking, and the front end of the far-end rotary grinding head can exceed the length range of the micro-catheter device for a certain distance, thereby playing a role in directly rotating and grinding the thrombus without damaging blood vessels.

The invention relates to an opener, belonging to the technical field of non-textile machinery. The opener comprises a box body, a cotton feeding mechanism set in the box body and an open roller cylinder similarly set in the box body and used for opening fibers from the cotton feeding mechanism, and is characterized by further comprising a cotton combing mechanism set in the box body and fixed with the box body and correspondingly between a cotton outlet of the cotton feeding mechanism and the open roller cylinder. According to the opener, because of the technical scheme that the cotton combing mechanisms are set in the box body and correspondingly between the cotton outlet of the cotton feeding mechanism and the open roller cylinder, the non-textile fibers from the cotton feeding mechanism are loosened in advance to improve the openness efficiency of the open roller cylinder greatly.