42results about How to "Safeguard requirements" patented technology

The invention discloses a hyper-high purity extracting technology of natural graphite, which comprises the following steps: (1) putting natural graphite in the container to do oxidizing disposal with low-middle carbon content more than 98%; (2) fusing at high temperature; (3) inputting in the metal erosion-proof container; proceeding dealkalization; (4) deacidifying to wash to neutral; (5) proceeding electromagnetic black metal removing disposal in the floating pool; (6) heating in the autoclave from 118 deg, 206 deg and 220 deg separately; (7) using pure water to dispose; (8) dehydrating; (9) drying until the water content is less than 0.1%.

The invention discloses a support lifting double-layer sedan with convertible single-layer and double-layer spaces. The support lifting double-layer sedan comprises a chassis, a box, a casing, a power telescopic shaft lever system, a guide balance mechanism, a sealing mechanism and a plurality of locking snap-in mechanisms, the box is fixed onto the chassis, the casing is arranged on the box and connected with the box through the power telescopic shaft lever system and the guide balance mechanism, the casing, a top plate and an overskirt of the box jointly form an upper movable space, the power telescopic shaft lever system is used for supporting and folding the casing, the guide balance mechanism is mounted between the casing and the box, so that the casing can smoothly run in the supporting and folding process, the sealing mechanism is arranged between the casing and the box, and the locking snap-in mechanisms are arranged on the side walls of the box and the casing. Compared with a traditional mode, the use area in the sedan is doubled, and the support lifting double-layer sedan is stable to fold, safe to use and fine in sealing performance.

The invention discloses a method for intercepting, encrypting and decrypting data. When the data is transmitted from a client to a server, the sensitive data is encrypted and then leaves off an intranet. When the data is transmitted from the server to the client, the data enters the intranet, and the encrypted data is decrypted so as to obtain the sensitive data. The invention also discloses a system for intercepting, encrypting and decrypting the data. The method and the system have the advantages that the protection, management and control requirements of applicable intranet users on the sensitive data in the governments, enterprises and the like can be ensured, and the safety is higher.

The invention discloses an improved key distribution method in a large-scale layered wireless sensor network, relates to the technical field of a wireless ad hoc network, and specifically relates to an improved key distribution scheme for establishing the safe layered wireless sensor network. For the problem that the key storage and communication overheads of the traditional key pre-distribution mechanism are relatively high, the invention provides the method of ensuring complete network connection by employing the improved key distribution scheme. The wireless sensor network is usually deployed in a hostile environment and an unmanned operation mode, and therefore, in order to protect sensitive data and sensor reading, a secret key should be applied to encryption of exchange information between communication nodes. According to the method, a layered network mode and a bivariate polynomial key generation scheme are employed, no matter how many sensors are damaged, through adoption of the IKDS (Improved Key Distribution Scheme), a unique paired key is ensured to be established between two communication parties. According to the improved key distribution scheme, the key storage and communication overheads are reduced, the security is improved, and the integral stability of the network data transmission is improved. The method is applicable to the technical field of the large-scale layered wireless ad hoc network.

The invention discloses an environment-friendly high-phosphorus chemical nickel plating solution for an airtight glass-sealed binding terminal. The environment-friendly high-phosphorus chemical nickel plating solution comprises the following active ingredients according to concentration: 25-27g/L nickel sulfate, 19-22g/L sodium hypophosphite, 20-23g/L sodium hydroxide, 41-44g/L lactic acid, 1.5-2.3g/L trisodium citrate, 13-15g/L malic acid, 8-12g/L glycine, 0.2-0.4ml/L OP-10, 0.26-0.3g/L stannous chloride, 0.26-0.34g/L maleic anhydride and 3-5mg/L N,N-diethylaminopropyne. The invention discloses a method for performing chemical plating by adopting the chemical nickel plating solution. A stainless steel needle and an iron cover can be simultaneously subjected to chemical nickel plating and be evenly plated, no nickel nuclear generated on sintered glass can be guaranteed, and the difficulty in keeping the smoothness and cleanness of the surface of glass can be solved.

The invention discloses a semi-submersible type lifting and disassembling platform and a control method thereof. The platform comprises a port floating body, a starboard floating body, two port stand columns, two starboard stand columns and a deck box, wherein the port floating body and the starboard floating body are each internally provided with a plurality of common water ballast tanks and a plurality of rapid water ballast tanks; the top of the rapid water ballast tank is communicated with a compressed air ballast system, column side water ballast tanks are arranged in the port stand column and the starboard stand column respectively, and the tops of the column side water ballast tanks are communicated with the compressed air ballast system. And water pump ballast systems are arranged on the common ballast water tanks, the rapid ballast water tanks and the column side ballast water tanks. The invention further discloses a control method of the platform. The safety of the platform and workers is ensured to a great extent; a set of emergency response system is established, and what is guaranteed is that when the platform encounters sudden failures in open-sea operation, platform operation command is smooth in real time, emergency rescue is rapid and accurate, and staff deal with the emergency rescue orderly and safely.

The present invention discloses a connector and an assembly process thereof. The connector comprises a male end side and a female end side. The male end side comprises pins, a first plum positioning member with the side-mounted arrangement of the pins, a male end positioning member which fixes the pins to the first plum positioning member, a first self-tapping screw which locks the male end positioning member and the first plum positioning member, and a male end shell. The female end side comprises jacks, a second plum positioning member with the side-mounted arrangement of the jacks, a female end positioning member which fixes the jacks to the second plum positioning member, a second self-tapping screw which locks the female end positioning member and the second plum positioning member, and a female end shell. The pins of the male end side and the jacks of the female end side are connected to form a connector. According to the connector the scheme, the reliable positioning of the pins and the jacks are ensured, the exposed size of the pins is guaranteed, the electrical performance is guaranteed, since pin and jack positioning connection structures are simplified, and thus the connector assembly process has the advantages of simple steps and high assembly precision.

The invention discloses a method for degrading methylene blue adsorbed in particles under solar illumination through titanium dioxide and belongs to the technical field of titania photocatalysis. The method is characterized by comprising the following steps that (1) a phosphoric acid solution is dropwise added into an aqueous solution containing citric acid and calcium hydroxide, hydroxyapatite is prepared, the hydroxyapatite is added into a solution containing the methylene blue, and a hydroxyapatite colloidal solution containing the methylene blue is prepared; (2) butyl titanate, nitric acid and polyethylene glycol are sequentially added into a mixed solution of ethyl alcohol and water, tartaric acid is added after water heating treatment, and a titanium dioxide solution is prepared; and (3) the titanium dioxide solution and hydroxyapatite colloidal solution containing the methylene blue are mixed and stirred, mixed particles are obtained through centrifugation and drying, and the methylene blue adsorbed in the particles can be degraded under solar illumination of 7-42 hours. According to the method, the process is simple, raw materials are low in cost, and industrial production is easily achieved. Degrading of the methylene blue can be achieved under solar illumination, and the degrading speed is high.

This invention discloses one anti-fire channel door, which comprises level split sliding main door combination and main door fan drive rotation device, wherein, the device comprises one set of drive device symmetrically set on each fan two sides; each set of drive device is composed of start door and curve connection bar; the start door adopts frame structure with curve bar is of triangle rack with each point connected to main door and with other point connected to hinged linkage to connection board and main door.

The invention discloses a microbial agent capable of preventing both root knot nematode disease and clubroot and a preparation method of the microbial agent, and relates to the technical field of fertilizers. The technical problems that in the prior art, field symptoms of the root-knot nematode disease and the clubroot disease are similar, rapid distinguishing and accurate medicament selection are difficult, and the root-knot nematode disease and the clubroot disease easily occur at the same time and are difficult to prevent and control in time are solved. The preparation method of the microbial agent for preventing both the root knot nematode disease and the clubroot disease comprises the following steps: preparing bacillus methylotrophicus powder and bacillus subtilis powder; preparing paecilomyces lilacinus powder; and compounding the prepared bacillus methylotrophicus powder, paecilomyces lilacinus powder and bacillus subtilis powder in proportion, and uniformly mixing to obtain the microbial agent capable of preventing both the root knot nematode disease and the clubroot disease. The prepared microbial agent for simultaneously preventing the root knot nematode disease and the clubroot disease can be used for uniformly preventing and controlling the two diseases, and the situation that the golden period of early prevention and control is delayed due to wrong medicament selection in agricultural production is avoided.

The invention discloses an industrial circulating cooling water system and an energy-saving operation method thereof. The system comprises a cooling tower, a first water pump, a first valve, tail end process equipment, a low-level water tank, a second water pump and a second valve which are sequentially connected in series through a pipeline closed loop, a water distributor with one end communicating with a water inlet pipeline of the cooling tower is arranged at the top in the cooling tower, a filler is arranged below the water distributor, a fan is arranged over the cooling tower, the two ends of a rotating shaft of the fan are connected to a servo motor and a water turbine correspondingly, the high-level water tank is arranged above the cooling tower, the bottom of the cooling tower sequentially communicates with a third water pump, a third valve and the top of the high-level water tank through pipelines, the bottom of the high-level water tank communicates with a water inlet pipeline of the water turbine through a pipeline, a fourth valve is arranged on a communicating pipeline between the high-level water tank and the water turbine, and an outlet of the water turbine communicates with the bottom of the cooling tower through a pipeline. The industrial circulating cooling water system and the energy-saving operation method thereof are stable, reliable, simple and convenient to operate and good in energy-saving effect, and local weather and geographical conditions can be fully considered.