4results about How to "Improve import speed" patented technology

The invention relates to the technical field of semiconductor integrated circuit package testing, and discloses a method for calculating lead frame stepping parameters, which comprises the following steps of: 1, inputting parameters; 2, calculating the number of stepping columns of each unit; 3, calculating lndex and the total length of each unit; 4, the number of Index numbers / the number of stepping times is calculated; step 5, calculating a light index center (Right index center); step 6, calculating a Left index center (Left index center); step 7, calculating the Y (Front Center offset), and calculating the Y (Front Center offset); step 8, calculating # imgabs0 #; and step 9, outputting: # imgabs 1 #. According to the method, the calculation deviation caused by human factors is avoided through automatic calculation, so that the calculation of the stepping parameters is more reliable, the universality and flexibility of the method are improved, an existing manual calculation method is improved into the mode that the needed stepping parameters are obtained through automatic calculation by inputting part of parameters of the lead frame, and the calculation efficiency is improved. And the operation is simple.

The invention discloses a post-treatment device for ship tail gas, and belongs to the technical field of ship tail gas treatment.The post-treatment device comprises a gas inlet box, the two sides of the gas inlet box communicate with a gas inlet pipe and a gas outlet pipe correspondingly, a piston plate is installed in the gas inlet box in a sliding and sealing mode, and a controller, a driving motor and two water pumps are fixedly installed at the top of the gas inlet box; the driving motor is used for driving the water pump to operate, and the rear side of the air inlet box is fixedly connected with a rotating motor. The desulfurizing tower is used for desulfurizing the tail gas; the desulfurizing tower is used for desulfurizing tail gas, the denitration tower is used for realizing denitration of the tail gas, spraying mechanisms and stirring mechanisms are arranged in the desulfurizing tower and the denitration tower, and a communicating pipe is communicated between the desulfurizing tower and the denitration tower. The content of pollutants in treated tail gas is monitored through the arranged sensor, and the dosage of the treatment solution and the gas inlet speed of the treatment device are automatically adjusted according to the monitoring result, so that it is guaranteed that the pollutants in the tail gas are thoroughly purified, and meanwhile resource waste is avoided.

This invention discloses a method and rapid verification device for improving the one-time molding rate of large-size NdFeB products. The method includes: taking a selected amount of alloy powder, simulating the formal molding process in the rapid verification device, acquiring pressure-displacement data in real time during the molding process, and plotting a pressure-displacement curve; comparing the pressure-displacement curves of alloy powders with different powder state parameters when reaching the same compaction density, and selecting the powder state parameter with the most stable curve shape and the required molding pressure to reach that compaction density within a preset optimal range as the optimal powder state parameter; based on the optimal powder state parameter, producing large-size NdFeB green blanks in a formal production mold. This invention can efficiently screen out the optimal powder state parameters required for molding before inputting into the formal mold, significantly shortening the molding press debugging cycle, reducing trial and error costs, and significantly improving the one-time molding rate of large-size NdFeB products.

The invention relates to an Excel file import method. The method comprises the steps that a front end receives an Excel file uploaded by a user and sends a file resource address and an import type to a back-end service; obtaining header information of the corresponding Excel file to be imported through the resource address; respectively verifying header information of the Excel file to be imported according to a preset verification rule to obtain a verified Excel file; respectively obtaining a file type and a business standard of the Excel file passing the verification; and analyzing the Excel file in a multi-thread manner according to the file type of the verified Excel file and the business standard. By using templates and strategy modes, general logic is extracted, duplicated codes are reduced, the code reuse rate is increased, and the development speed is increased. And the Excel file is concurrently read by adopting a multi-thread technology when the file is processed, so that the data import speed is remarkably increased, and the user experience is improved.