4results about How to "No change" patented technology

The application discloses a ventricular support drainage device, which comprises a drainage tube, a self-expanding support bracket, a delivery tube and a support strip. The self-expanding support bracket is arranged outside the drainage tube, and the support bracket in an expanded state is used for supporting the ventricular wall. A small protrusion is arranged inside the support bracket, and the small protrusion is in close contact with the drainage tube in a compressed state. The delivery tube is sleeved outside the drainage tube and the support bracket, and is used for maintaining the drainage tube and the support bracket in the compressed state. The support strip is arranged inside the drainage tube in the compressed state, and is used for supporting the whole structure during delivery. The support strip is used for delivering the drainage tube and the support bracket compressed in the delivery tube to a drainage position under the support of the support strip, and maintaining the position of the drainage tube unchanged when the delivery tube is withdrawn. The support strip is blocked at the first end of the drainage tube. The arrangement guarantees that the drainage device is effectively delivered, and the support bracket plays a supporting role and the drainage tube plays a drainage role after being delivered.

This invention discloses a method for manufacturing a traveling wave pump rotor, comprising the following steps: machining the outer shell, machining the base plate and the first injection-molded plate, machining the cover plate and the second injection-molded plate, machining the enclosure mechanism, and machining and forming the rotor. The manufacturing method of this invention is simple in its steps, which not only improves the integral machining quality of the traveling wave pump rotor, but also facilitates the formation of an injection-molded layer on the surface of the traveling wave blades, reducing friction and wear of the traveling wave pump rotor during operation, while also reducing noise and extending the service life of the traveling wave pump.

The application discloses a resource scheduling scheme effectiveness verification method and system based on execution information, and belongs to the resource scheduling field. The method comprises the following steps: constructing a priori known time network, using a priori known accidental link and an observation link to represent an action with uncertain duration and an observation process that can obtain execution information in an execution process, obtaining time constraints that need to be met at all controlled time points by applying propagation constraints, realizing the use of execution information to deal with time uncertainty, verifying whether the resource scheduling scheme meets the dynamic controllable condition when facing time uncertainty by using a dynamic controllability detection algorithm, and then judging whether the resource scheduling scheme can be successfully executed after the execution information obtained in the execution process is used to reduce uncertainty. The method has considered the execution information that can be obtained in the execution process in the verification process, and improves the accuracy and efficiency of the verification.

The utility model discloses a device of recycling DMF in waste water, through primary dehydration tower, secondary dehydration tower and partition wall rectifying column carry out multistage dehydration and rectification, compared with traditional conventional two tower three component separation structure, greatly reduce equipment cost and equipment's floor space, vacuum pump and DMF reation kettle cooperation, the most part dimethylamine in primary dehydration tower, secondary dehydration tower and partition wall rectifying column overhead distillate is sucked to DMF reation kettle with formic acid in partition wall rectifying column column kettle liquid dehydration reaction again obtains DMF, and transports to the partition wall rectifying column and carries out rectification, has reduced byproduct in waste gas and waste liquid, reduced the loss rate of DMF, improved the recovery rate of DMF.