5results about How to "Avoid inefficiencies" patented technology

The embodiment of the invention provides a multi-node database cluster parameter detection method and a related device, and relates to the technical field of databases. The method comprises the following steps: constructing a multi-node parameter value mapping table so as to identify an association relationship between nodes and parameters in the multi-node parameter value mapping table through a unique key; predefining a parameter checking rule set, wherein the parameter checking rule set comprises a parameter consistency requirement and a compliance threshold value; and based on the multi-node parameter value mapping table and the parameter checking rule set, performing comparative analysis on the parameter values of the nodes in the multi-node database cluster, and outputting abnormal information. Based on the method, the detection efficiency and accuracy of multi-node database cluster parameter detection can be improved.

The utility model relates to the technical field of aluminum ladle pouring, in particular to an aluminum ladle anti-leakage wear-resistant castable layered pouring device which comprises a base, a supporting column is arranged at the upper end of the base, a mounting plate is arranged at the upper end of the supporting column, a containing groove is formed in the upper end face of the mounting plate, and a rotating disc is rotationally connected into the containing groove. A driving assembly for driving the turntable to rotate is arranged on the base, a plurality of mounting seats are arranged at the upper end of the turntable at equal intervals around the circumference where the turntable is located, a pouring pipe is arranged on each mounting seat, and the turntable is driven by the driving assembly to synchronously rotate in the containing groove, so that the pouring pipes on different mounting seats are driven to rotate to designated positions connected with an aluminum ladle feeding pipe; the rotating disc is in butt joint with an aluminum ladle feeding pipe, rapid switching of different pouring pipes is achieved, the pouring pipes are switched through rotation of the rotating disc, low-efficiency operation of manual disassembly and assembly is avoided, the pipe replacing time is shortened, the situation that the pouring quality is affected due to the too long interval is prevented, the leakage prevention and abrasion resistance of an aluminum ladle lining are improved, and the service life is prolonged.

This application discloses an optical gain correction method, device, and storage medium for circuit board defect detection, relating to the field of image processing. In response to receiving a selection operation on a target sub-image in an array sample image, a magnified image of the target sub-image is generated; in response to receiving a sampling operation on the target sub-image, a target sampling area in the target sub-image is determined, and the actual pixel values ​​of the RGB channels in the target sampling area are calculated; the target pixel values ​​of the RGB channels in the target sampling area are obtained, and a channel gain value is determined by comparing them with the actual pixel values. The optical parameters of each column of cameras are adjusted based on the channel gain value, facilitating subsequent synchronous image acquisition and defect detection by the array camera module. By generating a magnified image of the target sub-image, calculating the actual pixel values ​​of the sampling area, and adjusting the channel gain value, rapid synchronous correction of the optical parameters of the array camera module is achieved, offering advantages in improving correction efficiency and detection accuracy.

The invention belongs to the technical field of enzyme gene engineering and enzyme engineering, and discloses a 5alpha-reductase mutant and application thereof in synthesis of steroid C4, 5 hydrogenation drug intermediates. Compared with an amino acid sequence of wild type 5 alpha-reductase, the mutant has mutation of at least two sites corresponding to the following sites of the amino acid sequence as shown in SEQ ID NO.1: the 56th site, the 109th site and / or the 144th site. The mutant has efficient catalytic activity on 3-keto steroids, a high-yield target product is obtained under high substrate feeding concentration, no by-product is generated, and the conversion rate is not lower than 99%. The invention also discloses a coding gene, a recombinant vector, an engineering bacterium and application of the mutant, the reaction conditions are mild, the process is simple and environment-friendly, the defects of the traditional method are effectively overcome, technical support is provided for green industrial production of steroid drug intermediates, and the application prospect is wide.

The utility model relates to a supporting leg poking and mounting device and crane mounting equipment, and the supporting leg poking and mounting device comprises a moving assembly, a first sliding rail and an auxiliary pushing assembly, the moving assembly is movably arranged on the first sliding rail and supports one end of a to-be-mounted supporting leg; the auxiliary pushing assembly is arranged on the moving assembly in a telescopic mode and abuts against the rear side face of the supporting leg to be installed. According to the supporting leg poking and mounting device, the supporting legs are accurately, safely and efficiently pushed into the supporting leg cavities, and the manual mounting burden is effectively reduced.