30results about How to "Guaranteed value in use" patented technology

The invention provides a system for anonymizing set type data by partially deleting certain items. The system preprocesses a dataset, then eliminates dangerous and sensitive strong association rules in the dataset by utilizing a multi-round iteration method, and ensures that the items are minimally deleted. A specific iteration implementation process comprises the following steps of: screening sensitive strong association rules from the dataset; and partially deleting certain items in the rules from the dataset, so that the dangerous and sensitive strong association rules become secure and sensitive weak association rules or are removed from the dataset. An iteration process can be skipped until the dangerous and sensitive strong association rules do not exist in the dataset. According to the system, a divide-and-conquer concept is combined to accelerate an anonymization process, so that the anonymization process can be concurrently executed through a plurality of threads, and the efficiency of the anonymization process is greatly improved on the premise of ensuring that the number of the deleted items is not sharply increased.

The invention discloses a knowledge management method for the mobile Internet. A knowledge management system is involved. The knowledge management method is characterized in that hardware architecture of the knowledge management system consists of a plurality of personal computers (PCs), one or more hardware servers and one or more knowledge databases. According to requirements of a knowledge information content rule and a knowledge information inspection rule, a knowledge manager accesses the knowledge management system by browsers on the PCs so as to collect, edit, check and publish knowledge information so that the knowledge information of the mobile Internet can be scientifically managed. The method has the advantages that the knowledge manager can collect and arrange the knowledge information quickly and easily, so that the scientificalness of knowledge management and the completeness of the knowledge information are guaranteed.

The invention discloses a bubbly health protection bathing Chinese herbal medicine preparation and a preparation method thereof. The bubbly health protection bathing Chinese herbal medicine preparation comprises the following components in parts by mass of 2000 parts of sodium carbonate, 1000 parts of citric acid, 400 parts of dihydroxysuccinic acid, 10-1000 parts of Chinese angelica, 6-800 parts of the rhizome of chuanxiong, 6-800 parts of the root of red-rooted salvia, 6-800 parts of dried ginger, 6-800 parts of cassia twig, 6-800 parts of pine needle and 4-400 parts of flowers carthami. The bubbly health protection bathing Chinese herbal medicine preparation solves the problems that the original marketing sauna foot powder (liquid) is difficult to leach effective components through hot water soaking, substandard in sanitation indexes, easily affected by damp to cause mildew and rot so as to be difficult to store and inconvenient for use, pollutes the environment by residues, is high in transportation and storage cost, can not only be used for immersing the feet and bathing, but also be used for fumigating the whole body and the feet, and can be used in a wood barrel box, a bathtub and a bathing pool, an electronic foot bathing basin and an electronic aromatherapy device.

The invention relates to the field of video monitoring and discloses an intelligent shooting method and an intelligent shooting device. The intelligent shooting method comprises the steps of detecting whether a person is in a preset detection region or not; when detecting that a person is in the preset detection region, starting a camera for video shooting and marking a video recording time point with a human face in the shot video; and if a video segment meeting the preset requirement exists in the video, intercepting the video segment meeting the preset requirement for storage, wherein the preset requirement is that the density of the video recording time point with a marker in the video segment is greater than a preset threshold. By adopting the intelligent shooting method and device, the shooting device is capable of storing the video segment with relatively high use value in the shot video, so that the condition that the stored video file is overlarge is effectively avoided and the backup or transferring and sharing difficulty is reduced.

The invention discloses a driver fatigue detection warning device which comprises a front-end collecting unit, a video processing unit, a biological facial fatigue analyzer, an electronic control unit and an acousto-optic alarm unit, wherein the front-end collecting unit collects facial data of drivers, then the video processing unit processes the facial data and transmits the facial data to the biological facial fatigue analyzer, the analyzed results are performed with signal conversion through the electronic control unit, and the acoustic-optic alarm unit is used for alarming. The driver fatigue detection warning device can effectively warn the drivers in fatigue driving, accordingly the phenomenon of fatigue driving is reduced, and car accidents caused by fatigue driving can be effectively and positively prevented and reduced.

The invention belongs to the technical field of sheet metal machining, particularly relates to a sheet metal machining platform and an operation method thereof, and provides the following scheme that the sheet metal machining platform comprises supporting bases, a sliding frame and a triangular pyramid, the outer walls of the tops of the multiple supporting bases are fixedly connected with the same machining platform, and the outer wall of the top of the machining platform is fixedly connected with fixing rods at equal intervals. By arranging the feeding assembly, when a metal plate is cut, the metal plate is placed on a feeding round rod, then the metal plate is drawn to move, and the feeding round rod is driven to rotate through a triangular cone, so that the metal plate is prevented from being in direct contact with a machining platform in the moving process, and the situation that the surface of the machining platform is damaged due to long-time friction contact is prevented; and meanwhile, in the rotating process of the triangular cone, balls on limiting springs on limiting hollow pipes limit the triangular cone, meanwhile, a rotating shaft drives the balls to rotate, friction of the triangular cone in the rotating process is reduced, and therefore the service life of the device is prolonged.

According to the method and the device, an underground compressed gas source is used as a power source to drive a pneumatic motor, a coupler, an eccentric shaft and an eccentric rotor to rotate, so that the coal sample is crushed, and the problems of sparks in conventional blade crushing and difficult explosion prevention of a motor are effectively avoided; the desorption measuring cylinder with the liquid level meter can automatically meter the desorption amount after the coal sample is crushed, the temperature sensor can record the temperature change of the coal sample in real time, and the device is safe, explosion-proof, convenient to operate and capable of rapidly and accurately measuring the residual gas amount of the coal sample. According to the method, the coal sample can be directly crushed on site, loss of gas in the transportation process is prevented, underground crushing is performed for 10-20 min, gas desorption data are recorded, meanwhile, the change rule of the temperature of the coal sample in the crushing process is considered, a non-isothermal diffusion mathematical model based on the coal sample gas desorption rule is established to calculate the residual gas content, and the coal sample gas desorption rule is calculated. And the parameter measurement efficiency and the accuracy of a measurement result are improved.

The invention belongs to the technical field of oil-resistant rubber materials, and particularly relates to an oil-resistant and low-temperature-resistant rubber material as well as a preparation method and application thereof. According to the invention, two kinds of nitrile rubber with different acrylonitrile contents are adopted and reasonably proportioned, and the cold-resistant plasticizer is adopted to further improve the low temperature resistance of the rubber sealing ring, so that the prepared rubber sealing ring has excellent functions of oil resistance, low temperature resistance, tension resistance and compression resistance at the same time, the low-temperature brittleness can reach-40 DEG C or below, and the service life of the rubber sealing ring is prolonged. And the use value can still be ensured in severe cold areas in winter, such as Xinjiang and northeast China, overseas Russian and Northern European, and the application is wide.

The invention relates to the technical field of medical instruments, and discloses a laser blood sampling instrument protective cover inner package, a package-integrated protective cover and an installation method of the package-integrated protective cover. The inner package of the protective cover of the laser blood sampling instrument comprises a package shell, lower convex parts are arranged on the package shell, and each lower convex part is provided with an upper-layer cavity, a middle-layer cavity and a lower-layer cavity which are distributed from top to bottom and communicate with one another; the lower-layer cavity is used for limiting a reducing section of the protective cover of the laser blood sampling instrument, and the lower end face of the middle-layer cavity is used for limiting the moving range of a gun head of the laser blood sampling instrument; the middle-layer cavity and the upper-layer cavity are used for containing equal-diameter sections of a protective cover of the laser blood sampling instrument, and a gap for containing a gun head of the laser blood sampling instrument is formed by the middle-layer cavity and the upper-layer cavity. According to the inner package, the gun head of the laser blood sampling instrument is directly clamped with the protective cover of the blood sampling instrument in the inner package shell through the inner package, so that the protective cover of the laser blood sampling instrument is prevented from being polluted by external objects, the use value of the protective cover of the laser blood sampling instrument is ensured, and meanwhile, the mounting convenience of the protective cover of the laser blood sampling instrument is enhanced.

The invention discloses an air conditioner liquid storage filter punching mold. The air conditioner liquid storage filter punching mold comprises a frame, an upper mold base and a lower mold base; the frame is provided with a support rod; the upper mold base and the lower mold base are mounted on the support rod; an upper cushion plate is arranged at the lower end of the upper mold base; a lower cushion plate is arranged at the upper end of the lower mold base; the upper cushion plate is connected with an unloading plate through a fixed rod; a punch is arranged on the unloading plate; a positioning plate is arranged at the upper end of the lower cushion plate, and is provided with a positioning needle; extension rods are arranged at two ends of the positioning plate, and are connected to the support rod; the outer sides of the extension rods are coated with springs; a fixed rod, connected through the upper cushion plate, preferably connects the unloading plate with the upper cushion plate; the punch on the unloading plate can preferably guarantee the mold coaxiality; and the positioning needle on the positioning plate preferably positions the upper and lower mold bases, so that the mold manufacturing efficiency is greatly improved, the product quality is improved, the normal use of an air conditioner is guaranteed, and the air conditioner liquid storage filter punching mold is worthy of popularization.

The invention discloses a method for improving corrosion resistance of a cast iron casting, and belongs to the technical field of corrosion and wear resistance of metal materials. The method is to pour smelted cast iron metal liquid in a sand mold; the metal liquid connects two electrode terminals; after the casting is totally solidified, that is, the casting is cooled to reach solid-phase temperature, the sharp wave electric pulse is applied; and after the casting is cooled to below the solid-phase line temperature by 200-400 DEG C, the electric pulse is cut off, and the casting is cooled to reach the room temperature. As the electromigration effect of the electric pulse, the content of C elements in carbides in the cast iron casting is increased, and the content of Cr elements is reduced, but the content of the C elements in a basal body is reduced, and the content of the Cr elements is increased; and the electric pulse is applied to the cast iron casting containing a certain content of Cr to increase the electrode potential of the basal body structure of the casting, so that the corrosion resistance of the casting is improved. The method has such advantages as simple operation, short treatment time, high production efficiency, low energy consumption and obtaining of the cast iron casting with high corrosion resistance.

The invention provides a method for extracting hermetia illucens prepupa grease, and belongs to the technical field of biological extraction. The method is characterized in that dry hermetia illucens prepupae and an auxiliary material are mixed to obtain a mixture, the water content of the dry hermetia illucens prepupae is smaller than or equal to 8 wt%, the auxiliary material is vegetable oil and/or crop seeds, and the mixture is squeezed to obtain crude oil. According to the extraction method, no organic solvent is used, so that pollution of the organic solvent to the environment can be avoided. According to the invention, dry hermetia illucens prepupae and an auxiliary material are mixed before squeezing, so that the hermetia illucens can be agglomerated during squeezing, the pressure in the squeezing is increased, and the sliding speed is reduced so as to increase the oil extraction rate of the hermetia illucens prepupae; and the result of the embodiment shows that the oil extraction rate of the hermetia illucens prepupae is 33-35%.