571results about How to "Increase the cost of use" patented technology

The invention is applicable to the field of data storage technology improvement, and provides a file security sharing method based on blockchain cloud storage. The method includes the steps as follows: S1, performing data encryption on a file by using a symmetric encryption algorithm, and storing a data ciphertext in a cloud disk; S2, enabling a user to generate a key ciphertext by using a symmetric key for decrypting the data ciphertext through encryption, and storing the storage locations of the key ciphertext and the data ciphertext together on a blockchain as a part of metadata; and S3, performing proxy re-encryption on the stored file data by using a new key, and securely sharing the data through the new key and the re-encrypted new ciphertext. Through the implementation of a cloud security storage and sharing mechanism for a private file under a decentralized storage architecture of the blockchain, the data stored in the cloud by the user can only be accessed through a private key, when the own encrypted data needs to be shared to other users, the own original key of an owner cannot be exposed to other people, and the process of downloading all cloud data, re-encrypting the data by using a shared key, and then uploading the data in sequence is not required.

An uncoated refractory antiwear welding cast iron alloy electrode for build-up welding contains C (2.5-6.5 wt.%), Si (0.8-2.5), Mn (0.4-1.5), Cr (16-35), Nb (0-1.5), Mo (0-3.5), Ni (0-2.0), W (0-2.5), V (0.1-2.0), Ti (0-0.8), Cu (0-1.0), S (0-0.08), P (0-0.1), O (0-0.08), N (0-0.08), Al (0-0.1) and Fe (rest), and is made up by casing method. Its advantages are high hardness of welded layer (more than 42 HRC), and low cost.

A hierarchical data-storage system has a volatile storage medium, a first non-volatile storage medium, and a controller including a ranking engine tracking data writes to each of the memory mediums. Each medium is associated with a pre-set capacity threshold, and the controller, upon the volatile medium reaching its pre-set threshold, identifies one or more blocks of data as least-frequently written to the volatile medium, copies the data in those blocks to the non-volatile medium, and marks those blocks as available for new data writes, and the controller, upon the non-volatile medium reaching its pre-set threshold, identifies one or more blocks of data as least-frequently written to the non-volatile medium, and marks those blocks as available for new data writes from the volatile medium.

ROADM node systems and methods of operation are disclosed. ROADM node systems may include transponder aggregators including transponders to add signals for switching through the ROADM node. The transponder aggregators include optical couplers constrained that are from coupling added signals on adjacent channels for simultaneous use. The ROADM system may include an optical interleaver that can provide an additional filtering function for the coupled signals prior to transmission of the signals on a WDM network.

The invention relates to a stainless steel material, a welding wire and a welding wire coil; and the material comprises the following components in percentage by weight: 0 to 0.03 percent of C, 0.5 to 1.0 percent of Mn, 0.5 to 1.0 percent of Si, 12.5 to 14.5 percent of Cr, 0.2 to 0.3 percent of Ti, 5.5 to 6.5 percent of Ni, 0 to 0.015 percent of S, 0 to 0.02 percent of P, and the balance Fe and other inevitable impurity elements. When being applied in ferritic stainless steel and martensitic and ferritic dual-phase stainless steel welding, the stainless steel welding material can replace austenitic stainless steel. The stainless steel welding material is applicable to welding under the condition that the heat input is 5 to 7kJ/cm.

The invention provides a surfacing electrode containing rare earths with a welding core but without a coating. The composition of the welding core is 3.2% to 6.5% of C, 0.4% to 2.5% of Si, 0.4% to 2.0% of Mn, 0.01% to 1.0% of Re, 10% to 35% of Cr, 0.0% to 2.0% of Mo, 0.0% to 2.8% of Ni, 0.0% to 2.5% of W, 0.0% to 1.5% of V, 0.0% to 1.0% of Ti, 0.0% to 1.5% of Nb, 0.0% to 0.5% of Cu, 0.0% to 0.6% of Al, not more than 0.08% of S, not more than 0.08% of P, not more than 0.08% of , not more than 0.08% of <N>, and 59.64% to 85.99% of Fe. The welding rod is suitable for the build-up welding of burning single-roll crusher hammer; the hardness HRC of the build-up welding layer at room temperature is not less than 50 and crack is allowable for build-up welding layer.

The invention provides a data transmission system. The system comprises a front-end subsystem, an imaging device, a photographing device and a post subsystem. The front-end subsystem is used for receiving original service data to be sent by an intranet customer service system through a data interface, splitting the service data into multiple data streams, encrypting the split data streams, and converting the data streams pattern information which can be displayed. The imaging device is used for displaying the pattern information. The photographing device is used for photographing a pattern on the imaging device. The post subsystem is used for receiving the pattern sent by the photographing device, decoding and converting the pattern into data streams, decrypting, merging and reorganizing the data streams to form the original service data, and sending the data to an extranet service network system through the data interface. Through the data transmission system, the data can be safely, efficiently and reliably transmitted between domains of different security levels.

The invention relates to a positive electrode material for a sulfur-based lithium ion battery and a preparation method and application of the positive electrode material. During the preparation process of the positive electrode material for the sulfur-based lithium ion battery, a sulfur positive electrode material is lithiated with metal lithium powder; under the protection of an inert atmosphere, the metal lithium powder and a sulfur-based positive electrode such as a sulfur-carbon based composite material or a sulfur-polymer composite material are uniformly mixed by a ball milling method or a coating method; and a certain amount of an electrode is dropwise added into the mixture, and a high-lithiation positive electrode material is obtained after appropriate lithiation time. From the angle of the lithiated sulfur positive electrode, a metal lithium negative electrode is substituted to provide a lithium source, the usage and production cost of a lithium-sulfur battery is saved, meanwhile, the dendrite crystal problem brought by the metal lithium serving as the negative electrode is avoided, and thus, the safety of a lithium-sulfur battery system is improved.

The invention provides a mobile payment terminal, a mobile payment system and a mobile payment method, and aims to solve the problems of safety and technicality existing in mobile payment. The mobile payment terminal comprises an intelligent card, an SIM card holder, a bottom communication interface, a terminal chip, and a wireless application module, wherein the intelligent card is used for storing bank card information and encrypting transaction data which contains the bank card information and a transaction password; the SIM card holder is used for inserting the intelligent card or an SIM card and providing a hardware interface which is directly accessed by the terminal chip for the inserted card; the bottom communication interface is used for software at the bottom of the terminal chip to open a software interface for the terminal chip to directly access the inserted card; the terminal chip is used for directly interacting with the chip of the intelligent card or the SIM card which is inserted into the SIM card holder through the bottom communication interface; and the wireless application module is used for providing external communication between the terminal chip and the terminal. The mobile payment terminal performs hardware encryption on the data through the chip so as to ensure the safety of data transmission and financial transaction.

The invention relates to a flexible phase-change material for electronic device thermal control. The flexible phase-change material comprises a phase-change substrate and a support carrier. The support carrier is an elastic polymer. The flexible phase-change material is prepared by the following steps: heating the phase-change substrate and the support carrier in the certain temperature, and placing in the environment of which the temperature is higher than the phase-change temperature after completely fusing and mixing, cooling and rolling. The flexible phase-change material can produce the deformation, such as elastic stretching, bending and torsion, while the temperature is higher than the phase transformation point. The flexible phase-change material is adhered to the surface of the heat production part or filled in clearances between a hot plate and a packaging component while used for the electronic device thermal control. The phase-change material has the good flexibility, so the phase-change material has the performance of a thermal interface material, and is capable of reducing the contract thermal resistance. The flexible phase-change material is capable of solving the problems that the installation is difficult and the contract thermal resistance is larger because the common phase-change material is excessive hard in the thermal control process of the electronic device, and greatly improving the thermal control performance.

The invention discloses 3D printing equipment with multiple feeding tubes. The 3D printing equipment comprises a mounting rack, a vertical moving mechanism, a horizontal moving mechanism, a printing head and a printing supporting mechanism, wherein the vertical moving mechanism comprises a first drive device, a lifting rod, a mounting plate and a positioning rod; the horizontal moving mechanism comprises a horizontal moving rod and a second drive mechanism; the printing head comprises a plurality of heating devices, a heat insulating device, a radiating device, a spray head, a spray nozzle and a plurality of feeding tubes; the heat insulating device is mounted above the heating devices; the radiating device is mounted above the heat insulating device; a feeding device is mounted at the upper ends of the feeding tubes; a closing valve is arranged on positions, corresponding to communication positions of the feeding tubes and the spray head, in the spray nozzle; the spray nozzle is detachably mounted at the lower end of the spray nozzle; and the printing supporting mechanism comprises a third drive device and a printing base. The 3D practical equipment with multiple feeding tubes can reduce vibration in a printing process, and can carry out color printing.

The invention discloses a high-performance concrete admixture in use of waste ceramic powder and an implementing method thereof. The high-performance concrete admixture is prepared by the following steps: utilizing waste ceramics as a main material and utilizing active seed crystals and a modified enhancer as auxiliary materials; performing modified treatment and high-temperature smelting on various materials, then putting into a cement mill to mill the materials to be pre-finished products with specific area of 300-450 m2/kg, and finally, doping mixed fibers. The high-performance concrete admixture comprises the raw materials in parts by weight: 80-100 parts of waste ceramic powder, 6-9 parts of active seed crystal, 2-6 parts of modified enhancer and 5-10 parts of mixed fibers. By adopting mixed ceramic powder, density of cement mortar is effectively increased; strength of concrete is improved and durability of concrete is remarkably improved. Energy problems are solved, and meanwhile, an environmental protection purpose is considered; the high-performance concrete admixture has remarkable technical, economic and social benefits.

A system for processing reusable gloves comprising a conveyor means (15) to convey a plurality of the reusable gloves to a plurality of processing stations (3); said processing stations including; a loading station for mounting the gloves to the conveyor means; an inspection station for inspecting the gloves for pre-determined criteria; a washing station for washing the gloves; an interrogation station for interrogating identification means of the gloves so as to receive data from said identification means; a testing station for testing the integrity of the gloves; an unloading station for unloading the gloves.

The invention discloses a production system of a silicon substrate liquid crystal display (LCD) screen and a production method thereof. The method comprises the following steps: (1) substrate cleaning: alternatively transferring indium-tin-oxide glass and silicon wafer into a cleaning machine before coating polyimide for completing cleaning; (2) successively coating, drying, rubbing and carrying out dry-method ultrasonic cleaning on the cleaned indium-tin-oxide glass and silicon wafer; (3) sending the cleaned indium-tin-oxide glass and silicon wafer to a glass/silicon wafer split system, transferring the indium-tin-oxide glass to an ultraviolet glue framing and dropping machine, carrying out silicon substrate LCD screen fit processing on the silicon wafer and the indium-tin-oxide glass which is coated with pattern framing flue and processed on the indium-tin-oxide glass, and then completing glue-framing exposure and solidification; (4) successively carrying out glue-framing resolidification, sealing and sealing glue solidification processing on the silicon substrate LCD exposed by glue framing; and (5) irrigating crystal to the silicon substrate LCD screen subjected to the solidification processing of sealing glue to obtain the reflection-type LCD screen. By adopting the method, the assembling quality of the silicon substrate LCD screen can be improved.

The invention relates to an assembled building curtain wall and an installing method. The assembled building curtain wall comprises two curtain wall bodies, an installing frame and a connecting device, wherein an installing frame is arranged in the middle part of the lower end of the curtain wall body; a through groove is formed between the curtain wall bodies; and the two curtain wall bodies areconnected through a connecting device. The assembled building curtain wall can solve the problems that the existing building curtain wall generally uses an integral design; the integral curtain wall generally has great size, transportation difficulty and high use cost; the mounting and the dismounting effects of the curtain wall are poor; during the installation of the existing building curtain wall, the space between the curtain walls cannot be regulated generally, so that great gaps easily exist between the assembled curtain walls; the attractive appearance of the integral assembly is influenced; meanwhile, the sealing effect of the assembled curtain wall is poor; and rainwater easily seeps to the inside of the curtain wall, so that the service life of the curtain wall is reduced, and the like.

The invention belongs to an intelligent cartoon-type packaging machine which comprises a machine body, a liquid-solid state feeding device, a film feeding and bag manufacturing device, a cartoon bag punching and shearing forming device and a waste film recycling device. The machine body is in an L shape. The liquid-solid state feeding device, a forming device, a special-shaped bag forming and sealing device, a film clamping tube correction device, a main motor, a speed reduction machine, the cartoon bag punching and shearing forming device and the waste film recycling device are sequentially arranged from the upper end of the L-shaped machine body to the tail of the machine body. According to the intelligent cartoon-type packaging machine, the flexible bag packaging process for various materials can be completed in a free-switching mode as needed, the requirement for sanitation and quality of the packaging of the various materials can be met, and the intelligent cartoon-type packaging machine has the advantages that the varieties of packaging are multiple, the application range is wide, the production efficiency is high, the packaging speed is high, the number of workers is small, and the packaging is exquisite and attractive.

The invention discloses probiotic milk and a preparation method thereof. The method comprises the steps that: (1) a fermented milk base material is mixed with a nutrition enhancer, such that a composition A is obtained; milk is mixed with an acidity regulating agent, and homogenization, sterilization, and cooling are carried out, such that a composition B is obtained; and (2) the composition A and the composition B are mixed and uniformly stirred, such that the probiotic milk is obtained. The invention also discloses the probiotic milk prepared with the above method. The probiotic milk has the advantages of low fermentation agent cost and high and stable probiotic content. The probiotic milk is rich in probiotic fermentation metabolic physiologically active substances, and contains mineral salt nutrition-enhancing substances.

The invention relates to a high-efficiency electromagnetic induction heating device for molten steel in a tundish. The high-efficiency electromagnetic induction heating device comprises the tundish, a fireproof wall body, electromagnetic induction channels, an electromagnetic induction coil A, an electromagnetic induction coil B, a steel bearing cavity of the tundish and a power supply device. A steel body of a casting cavity and a steel body of the steel bearing cavity of the tundish are overall integrated; the inside of the steel bearing cavity and the inside of the casting cavity of the tundish are isolated through the fireproof wall body; the two electromagnetic induction coils are arranged in the fireproof wall body, and the electromagnetic induction channels are arranged on the two sides of the electromagnetic induction coils so that the steel bearing cavity and the casting cavity of the tundish can be communicated; the two electromagnetic induction coils are in series connection with the power supply device. According to the high-efficiency electromagnetic induction heating device for the molten steel in the tundish, a closed-loop iron core is arranged in the tundish, the two electromagnetic induction coils are in series connection with the iron core, as a result, the problem that an outer shell of the tundish emits heat due to flux leakage when an electromagnetic induction heating device is additionally arranged in the tundish is solved, and the problems of flow fields and insufficient space also can be solved.

The invention discloses a preparation method of a flame-retardant magnesium alloy and relates to a magnesium alloy with aluminum as a minor main component. The method comprises the steps of weighing a magnesium ingot, an aluminum ingot, an Mg-Ca master alloy with the calcium content of 20 wt percent and an Mg-Y master alloy with the yttrium content of 25 wt percent as raw materials for feed preparation according to the mass percentage of component elements in the target magnesium alloy, wherein the target magnesium alloy comprises component elements in percentage by weight: 90.7-92.7 percent of Mg, 6.0 percent of Al, 0.3 percent of Mn, 0.5-1.5 percent of Ca and 0.5-1.5 percent of Y, the purity of a magnesium ingot is 99.99 percent, the purity of an aluminum ingot is 99.99 percent, and the purity of a manganese sheet is 99.99 percent; and putting all the raw materials in a gas protection melting furnace, carrying out smelting on the raw materials, then adding a refining agent into the gas protection melting furnace, carrying out refining, pouring the refined raw materials into a cast iron die finally, and carrying out air cooling until room temperature is reached to prepare a flame-retardant magnesium alloy cast ingot of Mg-Al-Mn-Ca-Y. With the adoption of the preparation method, the disadvantages of the flame-retardant magnesium alloy in the prior art that the raw material cost is high, and components contain toxic substances are overcome.

The invention discloses an all-nutrition multivitamin organic fertilizer, belonging to the technical field of organic fertilizers. The all-nutrition multivitamin organic fertilizer comprises the following substances in percentage by mass: 1-30% of active carbon, 1-90% of organic carbon, 1-50% of fermented animal manure, 1-90% of feather meal, 1-40% of monosodium glutamate pulp, 1-30% of starch pulp, 1-45% of sugar pulp, 1-10% of kaolin and 1-30% of zeolite powder. The all-nutrition multivitamin organic fertilizer is green and environment-friendly, all-around in fertilizer nutrition and easy to store, can be decomposed and absorbed within a short time and can retain soil moisture.