7results about How to "Efficient insertion" patented technology

The invention discloses a high-temperature-resistant high-activity metallocene catalyst and application thereof, and belongs to the technical field of olefin polymerization catalysts. The catalyst provided by the invention is formed by taking a fused ring structure with a rigid framework as a ligand framework and coordinating with transition metal titanium, zirconium or hafnium, so that the catalyst has excellent thermal stability and high catalytic activity, and is suitable for copolymerization reaction of ethylene and alpha-olefin. In the high-temperature polymerization reaction, the catalyst provided by the invention realizes efficient copolymerization of ethylene and alpha-olefin, and the obtained copolymer not only has higher molecular weight, but also has higher comonomer insertion amount, so that the structure and performance of the product are effectively regulated and controlled.

The present application relates to the technical field of biotechnology, and particularly relates to a CRISPR / SuCas12a2-based gene editing system and application thereof. The present application constructs a high-efficiency counter-selection recombination editing tool by exploring the counter-selection potential of CRISPR-SuCas12a2 and combining it with lambda recombinase. The method can complete high-efficiency recombination editing of genes through a double-plasmid and single-plasmid system carrying SuCas12a2 and lambda recombinase, and the efficiency is greatly improved compared with the current recombination editing method based on lambda recombinase. Compared with the previous dependence on the specific cleavage of target double-stranded DNA by CRISPR-Cas protein to promote the effect of recombination editing, the efficiency is also obviously improved, and the method has the advantages of more transformants and low probability of immune escape. The plasmid construction, recombination editing and plasmid elimination operations can be completed within one week. The above functions supplement a powerful tool for gene recombination editing.

The invention relates to the technical field of software, and discloses a manufacturing industry task and resource matching method and system, and the method comprises the steps: obtaining tasks and resources, including time constraint information and resource demand information of the tasks; processing the available time of each resource, and converting the available time period of the resource into a double linked list structure formed by a plurality of time slice nodes; calculating a corresponding task priority field for each task object based on the time constraint information of the task, the resource demand information and a preset business rule, and sorting the task objects according to the task priority fields; and according to the sequence of the sorted task objects, performing resource matching processing on each task object in sequence, and generating a task and resource allocation result. The resource time slices are managed by using the double linked list, so that the query, insertion and deletion operations of the time window are very efficient, and the method is particularly suitable for a frequently and dynamically updated manufacturing environment.

The utility model discloses an HDPE high-pressure pipe punching device, and belongs to the technical field of pipeline processing equipment, the HDPE high-pressure pipe punching device is provided with a limiting cushion block which can limit the transverse displacement of an HDPE high-pressure pipe, the transverse movement of the HDPE high-pressure pipe during punching is avoided, the actuating end of a rotary reciprocating motion mechanism can drive the punching end to do reciprocating motion, and the punching efficiency is improved. When the actuating end drives the punching end to move to the lower pole position, the punching end is rotationally inserted into a pipe cavity of the HDPE high-pressure pipe, and when the actuating end drives the punching end to move to the upper pole position, the punching end is rotationally disengaged from the pipe cavity of the HDPE high-pressure pipe. The insertion mode is more efficient, longitudinal resistance borne by rotary insertion is smaller, and consumed energy is less.

This invention proposes an efficient K-short path calculation method and system for dynamic road networks, relating to the field of path planning technology. It involves obtaining multiple OD pairs from a directed graph of the road network, constructing a list, and initializing it. For each OD pair, a shortest path is calculated, and a set of deviation paths is constructed based on the shortest path. The shortest path and the set of deviation paths are stored as an initial K-short path set. When the edge weights of the road network structure are adjusted, potentially affected OD pairs are screened based on the changed edge attributes and the initial K-short path set. The initial K-short paths from the potentially affected OD pairs are obtained, and a substantial impact test is performed: if an initial K-short path does not contain any changed edges, and its path cost is less than the total cost of potential new paths constructed from the changed edges, then the path is retained; otherwise, the path is deleted. New paths are supplemented based on the set of deviation paths until K shortest paths are satisfied, thereby significantly reducing computational complexity and improving the efficiency and accuracy of path updates in dynamic scenarios.

The application relates to the technical field of auxiliary installation and debugging of electronic components, and discloses a communication electronic component auxiliary installation and debugging device, which comprises a pickup assembly arranged above a conveying assembly, the pickup assembly comprises a pickup support, a lifting table is arranged on the pickup support, a guide table is arranged on a longitudinal moving frame, a plurality of strip-shaped guide grooves are arranged in the guide table, a plurality of guide blocks are slidably arranged in each strip-shaped guide groove, a limiting push block is arranged on the upper portion of each guide block, a push-clamp plate is arranged at the output end of a push-clamp cylinder, the push-clamp plate is driven by the push-clamp cylinder, the limiting push blocks are pushed to move close to each other, one end of a first reset tension spring is arranged to act on the guide block, and the other end is arranged to act on the longitudinal moving frame, thereby providing a force for moving the plurality of guide blocks away from each other, a table body is arranged on the guide block, and a pickup cylinder is arranged on the table body. Through the technical scheme, the technical problems of low assembly and installation automation and low efficiency of communication electronic components in the related art are solved.

This utility model provides a wiring screw structure and wiring device. The wiring screw structure includes a screw body, a wire gathering component, and a wire clamping component. The wire gathering component is used to insert wires and is sleeved on the screw body. The wire clamping component is used to clamp the wire gathering component and includes two wire clamping washers, which are sleeved on the screw body and located on both sides of the wire gathering component. This utility model allows for direct insertion of wires into the wire gathering component, which is highly efficient. After insertion, the screw can be tightened directly, effectively improving wiring efficiency. Moreover, by collecting wires through the wire gathering component, flying wires can be eliminated, making the engineering wiring neat and beautiful, and improving on-site wiring safety. Furthermore, by clamping the wire gathering component with the wire clamping component, the wire gathering component is fixed between the two wire clamping washers, ensuring reliable crimping and preventing the wire gathering component from loosening under force, thus ensuring safe and reliable on-site wiring.