12results about How to "Reduce split" patented technology

The invention discloses a large-handling-capacity horizontal scraper discharging centrifugal machine and a using method thereof. A driving motor included in the large-handling-capacity horizontal scraper discharging centrifugal machine provides power for the centrifugal machine, and the driving motor comprises a stator and a rotor; the transmission device realizes stable and efficient transmission of power of the driving motor, and adopts a herringbone toothed belt wheel to provide large torque output; the screen basket is used for centrifugally separating materials, and solid-liquid separation of the materials is achieved through centrifugal force generated by rotating the screen basket at a high speed; the scraper adopts a small-lead spiral blade design, and the small-lead spiral blade enables the scraper to scrape materials on the inner wall of the screen basket when the scraper rotates along with the screen basket; a feeding pipe of the feeding system is a circular pipeline, the inlet end of the feeding pipe is connected with the material conveying pipeline, and the outlet end of the feeding pipe is arranged on one side of the screening basket in the tangential direction. According to the centrifugal machine, the problems of processing capacity, transmission stability, feeding mode, maintenance convenience, part protection, environmental adaptability and the like of vertical and horizontal centrifugal machines in the prior art are solved.

The invention relates to the field of drug analysis, and discloses a trace analysis method and system for antiviral drugs in sewage based on LC-MS / MS. The method comprises the following steps: filtering a sewage sample, analyzing the drug properties of the antiviral drugs, carrying out solid-phase extraction on the filtered sewage sample, preparing an LC-MS / MS module of the extracted sample, determining a mobile phase of a chromatographic column, and determining the mobile phase of the chromatographic column. Balancing the chromatographic column, constructing chromatographic conditions for balancing the chromatographic column, determining a tuning solution and a mass axis calibration compound of a mass spectrometer, calibrating the mass spectrometer, and constructing mass spectrum conditions of the calibrated mass spectrometer; the method comprises the following steps: preparing a standard solution containing an antiviral drug, analyzing the standard solution, constructing a standard curve of the standard solution, and calculating a response coefficient of an LC-MS / MS module; and analyzing the extracted sample to obtain a sample mass spectrum and a sample chromatogram, and calculating the content of the antiviral drug. According to the method, the sensitivity and accuracy of trace analysis of the antiviral drugs in the sewage can be improved.

The invention discloses a data security management method based on artificial intelligence, and belongs to the technical field of data processing, and the method comprises the following steps: S1, calculating a storage management demand for to-be-managed data according to a database for storing the to-be-managed data; s2, performing reading operation on the to-be-managed data, and generating a multi-dimensional data set for the to-be-managed data; s3, generating a security encryption key by using the storage management requirement of the to-be-managed data and the multi-dimensional data set; and S4, encrypting the to-be-managed data by using the security encryption key to complete security management. The encryption key is generated by combining the storage management requirement and the multi-dimensional data set, the complexity and the uniqueness of the key can be ensured, the generation strategy of the encryption key can be dynamically adjusted according to the change of the storage management requirement, and the flexibility and the expandability of safety management are considered.

The present invention relates to the technical field of electrical components, and specifically to a PCB board washing device, comprising: a machine base; a platform, the machine base is fixedly connected with the platform; a transfer frame, the platform is rotatably connected with the transfer frame; a frame, the platform is fixedly connected with the frame; a material pushing frame, the frame is slidably connected with the material pushing frame; a deformation bar, the deformation bar is fixedly connected with the material pushing frame; a cleaning machine a, the platform is fixedly connected with the cleaning machine a; a cleaning machine b, the platform is fixedly connected with the cleaning machine b. The present invention sets a rotating transfer frame to transport the PCB, so that the PCB passes vertically through the cleaning machine a and the cleaning machine b, so that the two can respectively clean the two sides of the PCB at the same time, without the need to change direction to transport the PCB twice, thereby greatly reducing the time for cleaning the PCB and effectively improving the cleaning efficiency of the present invention for the PCB.

The invention discloses an embedded CSP (Chip Scale Package) LED (Light Emitting Diode) device and a manufacturing method thereof. The manufacturing method comprises the following steps: preparing a temporary fixing material, pasting an electrode surface of a flip LED chip on the temporary fixing material, laminating an incompletely cured silica gel / fluorescent powder composite sheet, removing the temporary fixing material, laminating an incompletely cured packaging material sheet, enabling the electrode surface of the flip LED chip to be in contact with the packaging material sheet, and packaging the flip LED chip on the packaging material sheet. The method comprises the following steps: pressing an upper copper foil, forming a blind hole, filling the blind hole with a copper material, etching a circuit pattern and a round hole on the copper foil, covering the etched area of the copper foil with ink, and carrying out chemical plating and cutting on the surface of the patterned copper foil. In the invention, the six surfaces of the LED chip are all elaborately wrapped by the high-quality organic material or metal, so that the chip is ensured to be tightly combined with the packaging material, and the risk of splitting or falling off is greatly reduced. The whole packaging process is simple and easy to operate, required tools are simple, and the method is more economical and practical.

The invention discloses a method for improving cylinder bottom staggered layers during annealing of an aluminum foil finished product, and belongs to the technical field of aluminum foils. Winding a layer of kraft paper on the metal tube core for bottoming, winding the aluminum foil on the kraft paper, then standing for 1-2 days to eliminate internal stress, and then annealing; two ends of the kraft paper are provided with gaps and are connected through a plurality of thin adhesive tapes to form a cylinder matched with the metal tube core, and the kraft paper is adhered to the metal tube core through the thin adhesive tapes; the width of the gap is 1.0 to 2.0 mm; two sides of the kraft paper in the width direction are flush with corresponding sides of the aluminum foil, the gram weight is 70-80g / m < 2 >, and the smooth surface of the kraft paper is positioned on one side of the aluminum foil. The method has the following beneficial effects that (1) the possibility of layer staggering is reduced, and the probability of layer staggering is reduced from about 50% to about 10%; (2) during layer staggering, the length of the staggered layer and the starting end is reduced to 100-200 m from 300-500 m; and (3) during layer staggering, the probability of belt breakage is reduced from 40-50% to 20-30%.

The invention relates to the technical field of electric appliance elements, in particular to PCB washing equipment. The machine base is fixedly connected with the platform; the transfer frame is rotationally connected to the platform; the frame is fixedly connected to the platform; the pushing frame is connected to the frame in a sliding manner; the material pushing frame is fixedly connected with the deformation strip; the cleaning machine a is fixedly connected to the platform; and the cleaning machine b is fixedly connected to the platform. According to the PCB cleaning device, the rotating transfer frame is arranged to transport the PCB, so that the PCB vertically penetrates through the cleaning machine a and the cleaning machine b, the cleaning machine a and the cleaning machine b can clean the two side faces of the PCB at the same time, the PCB does not need to be conveyed in a reversing mode for the second time, and therefore the PCB cleaning time is greatly shortened, and the PCB cleaning efficiency of the PCB cleaning device is effectively improved.

The application relates to a sea fog monitoring method and device, electronic equipment, a storage medium and a product. The method comprises the following steps: acquiring image data of a target region to be identified; inputting the image data into a classifier to obtain a sea fog identification candidate result; determining a sea fog core pixel and a sea fog determination rule based on the sea fog identification candidate result; taking the sea fog core pixel as a starting point, judging whether adjacent pixels satisfy the sea fog determination rule one by one until all the pixels in the image data are traversed, and obtaining a sea fog identification target result. In this way, the classifier is used to quickly narrow the candidate range, and then the key region is focused for growth verification, so that the calculation efficiency and the identification accuracy are considered, invalid calculation is reduced, the local deviation of the classifier is compensated, and the problem that a single sub-growth is easily disturbed by noise is solved; the pixel-by-pixel verification of the core pixel not only naturally matches the continuous distribution characteristics of the sea fog, reduces the complete fog area from being split, but also can accurately depict a gradual edge and match the real shape of the fog area.

The present invention discloses a data security management method based on artificial intelligence, which belongs to the field of data processing technology and includes the following steps: S1, calculating the storage management requirements for the data to be managed according to the database storing the data to be managed; S2, performing a read operation on the data to be managed and generating a multidimensional data set for the data to be managed; S3, generating a secure encryption key using the storage management requirements and the multidimensional data set of the data to be managed; S4, encrypting the data to be managed using the secure encryption key to complete security management. The present invention generates encryption keys by combining storage management requirements and multidimensional data sets, which can ensure the complexity and uniqueness of the keys, and can dynamically adjust the generation strategy of the encryption keys according to changes in storage management requirements, taking into account the flexibility and scalability of security management.

The application relates to a carbon material, a preparation method thereof, a negative electrode material and a battery. The carbon material has a rod-like structure, has pores and has a length-diameter ratio of 3-15. The carbon material has a rod-like structure, can reduce inter-particle pores, reduce particle breakage during pressing of an electrode sheet, and is beneficial to improving the compaction density, the energy density and the electrochemical performance of the material.

The present invention discloses a bamboo strip feeder, which belongs to the technical field related to bamboo winding, wherein a feed hopper, a transmission component and a vacuum adsorption component are correspondingly arranged, and the structure of the feed hopper and the transmission belt and the relative position between the two are preferably arranged, so that the rectangular slit on the feed hopper can be directly opposite to the transmission belt below it, and the accurate feeding and adsorption of a single bamboo strip piece on the transmission belt can be achieved each time, so that the bamboo strips can be accurately fed along the length direction thereof through the corresponding conveying of the transmission belt. The bamboo strip feeder of the present invention has a simple structure, is easy to control, and is convenient to overhaul the equipment. It can accurately realize the continuous feeding of bamboo strips, reduce the splitting, breaking, falling and damage of bamboo strips during the feeding process, save the raw material cost of bamboo strip curtain production, reduce the mechanical failure of the feeder, ensure the continuity and stability of bamboo strip feeding, and has good application prospects and promotion value.

The invention discloses a real silk fabric dyeing process, which comprises: dye preparation: dissolving a madder dye and a safflower dye in an ethanol solution to prepare a dye liquid, and carrying out ultrasonic treatment on the dye liquid at a temperature of 40-50 DEG C; real silk pretreatment: washing real silk with clear water; carrying out pre-mordanting treatment on the cleaned real silk by utilizing mordanting liquid under the condition of 40-50 DEG C; real silk dyeing: heating the dye liquor by 2 DEG C every 3-5 minutes, keeping the dye liquor in a constant-temperature state when the temperature is 65-70 DEG C, and dyeing for 1.5-2 hours under a sealed condition; carrying out real silk post-treatment; and S3, carrying out color fixation on the real silk dyed in the step S3 by using an acidic color fixation solution, then cleaning, and drying at 50-60 DEG C to obtain the real silk fabric with the color between orange and red. The problem that in the prior art, due to the fact that the content of madder dye in dye liquor is not high, when real silk fabric needs to be subjected to high-temperature dyeing, protein fibers forming real silk are denatured is solved.