5results about How to "Little correlation" patented technology

The application provides an LDPC code decoding method and device, electronic equipment and storage medium. The method comprises the following steps: obtaining an input code word, a grouped check matrix and an initial confidence of an LDPC code, wherein the grouped check matrix is obtained by grouping an original check matrix according to a preset condition; presetting two initial quantization values with a given magnitude bit width, calculating an initial companion based on the input code word and the grouped check matrix; starting from the initial companion and the two initial quantization values, performing decoding iteration column by column, updating a current column variable node in the iteration, obtaining a soft decision message and transmitting the soft decision message to a next column, updating an associated grouped check node, and performing post-processing compensation on an oscillation correctable code word; updating the companion after each column is updated and judging a decoding success condition; and outputting a result when the condition is met or a maximum iteration number is reached. The scheme can realize the collaborative optimization of decoding performance and hardware implementation efficiency.

The application provides a selective hydrogenation method, comprising the following steps: providing a hydrogenation catalyst, which is a carbon-coated nickel nanocomposite with sulfur-containing urea on the surface; contacting a hydrogenation substrate, hydrogen and the catalyst, and catalyzing the reaction under the condition of liquid-phase hydrogenation; the benzene ring of the hydrogenation substrate contains a nitro group and a carbon-carbon unsaturated bond simultaneously. When the benzene ring of the hydrogenation substrate contains a nitro group and a carbon-carbon unsaturated bond simultaneously, the hydrogenation method and the catalyst can hydrogenate the nitro group with high activity and high selectivity.

The invention discloses an automatic alignment method and system for a medical displacement machine. Information of a patient is collected through a laser sensor, a monocular camera and a depth camera; inputting medical record data of the patient into a deep neural network, and using the deep neural network to perform fusion processing on information acquired by the laser sensor, the monocular camera and the depth camera and the medical record data; using a convolutional neural network and a recurrent neural network to train the position information, the joint angle information, the skeleton model and the inconvenient-to-move part, and outputting a predicted human body posture; and dynamically adjusting the position of the shifting machine according to the predicted human body posture. By training the position information, the joint angle information, the skeleton model and the inconvenient-to-move parts, the human body posture can be predicted more accurately, the recognition capability and accuracy of the system are greatly improved, the position of the displacement machine is dynamically adjusted according to the predicted human body posture, and the comfort and safety of a patient in the transfer process can be ensured.

The utility model provides a kind of reaction heat utilization device and cyclohexene preparation system, belong to cyclohexene preparation technical field.It is used for benzene partial hydrogenation reactor, and benzene partial hydrogenation reactor has cooling coil, reaction heat utilization device includes heat-removing water storage tank;Power pump, the water outlet of heat-removing water storage tank and the water inlet of cooling coil are connected;Flash tank, the feed inlet of flash tank is connected with the water outlet of cooling coil;Steam compressor, the steam export of flash tank is connected with the air inlet of steam compressor, and the air outlet of steam compressor is used to connect heat equipment.The reaction heat utilization device effectively utilizes the reaction heat of preparation cyclohexene.

The invention relates to a hazardous chemical substance process management system, and belongs to the technical field of process management systems, and the key points of the technical scheme are that the hazardous chemical substance process management system comprises a production management module which is used for inputting a production plan and generating a time sequence bill of materials according to the production plan; the material storage module is used for storing material information of in-warehouse materials and warehouse-in and warehouse-out information of the materials; the personnel information module is used for storing biological information of a material administrator and performing information marking on the material administrator; the management decision module is used for generating material receiving information, selecting and setting a receiving person and generating an electronic public key and an electronic private key; the voucher data end is used for receiving and outputting the electronic private key sent by the management decision module; according to the invention, the cooperation of production, manpower, management and storage is realized, and the application and use process of the hazardous chemical substance can be well controlled.