95results about How to "Reduced security requirements" patented technology

The invention relates to an electronic contract off-line signing method based on a trusted third party. According to the electronic contract off-line signing method based on the trusted third party, an electronic signature digital certificate, a user private key and a contract proof public key are obtained from the trusted third party by a user; then, the Hash digest value of the electronic contract is calculated; the Hash digest value is subjected to encryption operation by the user private key and the proof public key; an encryption result is two strings of key sequences; finally, the key sequences and the digital certificate watermark of a signer are embedded into a signature picture; then signature picture embedded with the watermark is stamped to an electronic contract document. According to the electronic contract off-line signing method based on the trusted third party, which is disclosed by the invention, the requirement on the contract signing platform safety in the contract signing process can be favorably lowered, and the contract signing platform can finish the electronic contract signing process only by taking the responsibilities of approving and putting to the proof to the electronic signature without damaging the safety.

The invention provides a novel energy-saving sectional cylinder cut tobacco dryer capable of arbitrarily setting the temperature in a design range to realize high-precision temperature control and high heat utilization rate. The novel energy-saving sectional cylinder cut tobacco dryer comprises a heat conducting oil circulating oil temperature controller, a drying cylinder, a hot air moisture removing system and the like, wherein the drying cylinder is divided into a feeding section drying cylinder and a discharging section drying cylinder along the feeding direction and discharging direction of cut tobaccos; and corresponding to the high-temperature zone and the low-temperature zone of the drying cylinder, the hot air moisture removing system is divided into independent high-heat air section and low-heat air section, a hot air moisture removing pipe is fixedly installed at the other side opposite to the throwing direction of the cut tobaccos without rotating together with the drying cylinder, the axial direction of an air outlet arranged on the hot air moisture removing pipe is approximately intersected with the dropping direction of the cut tobaccos, the air direction of hot air blown into the drying cylinder is intersected with the dropping direction of the cut tobaccos, and the hot air radially flows in the drying cylinder and can uniformly and effectively pass through the throwing layer of the cut tobaccos. By utilizing heat conducting oil for heating the drying cylinder and the hot air, the sectional cylinder cut tobacco dryer has high temperature control precision and heat utilization rate and can meet the process requirements of different cut tobaccos, such as processing strength, drying uniformity and the like.

The invention discloses a resident identification card network reading system, which consists of background management system (BMS) and reading terminal system (RTS), wherein the BMS installs SAM_V safety modular for resident identification card electronic information operation processing or other hardware safety control equipment with the same code arithmetic function; the RTS installs radio frequency reading without SAM_V safety modular; the BMS and RTS communicate through private or common local (LAN) or wide area (WAN) network; the RTS sends the electronic information which is stored in the resident identification card chip to BMS to carry out code arithmetic function; after BMS code arithmetic function, the information is sent to RTS; TRS realizes reading, displaying, checking, storing and outputting resident identification card information.

A laboratory sample distribution system (100) comprises: a number of container carriers (1), said container carriers each comprising at least one magnetically active device, preferably at least one permanent magnet, and being adapted to carry a sample container (3), a transport plane (4) being adapted to carry said container carriers, and a number of electro-magnetic actuators being stationary arranged below said transport plane, said electro-magnetic actuators being adapted to move a container carrier on top of said transport plane by applying a magnetic force to said container carrier.

The invention discloses a method for preparing no-yellowing polyurethane sponge capable of being foamed at normal temperature. 4,4'-dicyclohexylmethane diisocyanate or a prepolymer thereof and polyether polyol serve as main raw materials; an environment-friendly catalyst and other auxiliary materials are added, the reaction and foaming are performed through a conventional polyurethane sponge production line at normal temperature, and the no-yellowing polyurethane sponge is obtained through a curing stage. The no-yellowing sponge can be obtained through the conventional polyurethane sponge production line at normal temperature, the raw materials do not need to be heated, existing equipment does not need to be modified, and the method has the advantages of small equipment investment and low energy consumption. In addition, since 4,4'-dicyclohexylmethane diisocyanate does not contain a benzene ring structure, obtained polyurethane sponge does not yellow, is excellent in aging resistance, oxidization resistance and illumination resistance and can be widely applied to the fields of shoe materials, furniture, electronics, printing supplies, aviation, automobiles, medical beauty, packaging, sports goods and articles for daily use.

The invention provides a construction method of municipal drainage culvert sinking trough. The construction method comprises the following steps: manufacturing a groove-type culvert prefabricated part with a cutting foot at the lower part by adopting the ground or semi-underground cast-in-place segmental method on the construction line of municipal drainage culvert; excavating earthwork in the cutting foot which is at the lower part of the groove-type culvert prefabricated part; sinking the earthwork to a predetermined depth by the own gravity of the groove-type culvert prefabricated part or by external force; manufacturing a culvert base plate by the cast-in-place method between the cutting feet which are at the lower part of the groove-type culvert prefabricated part; backfilling to the height of the original ground surface or road surface with sediments outside the groove-type culvert prefabricated part. Compared with the prior art, the construction technology has the advantages of high rigidity, strong safety, little influence on adjacent buildings and various pipes; the invention further has the advantages that little precipitation and displacement occur on the earth surface; the solidity and durability are better than that of open municipal drainage pipeline construction, and the invention overcomes various drawbacks that the current drainage pipelines with major diameters are not easy to manufacture, transport and construct and are easy to leak.

The invention discloses an offshore floating double-rotor vertical-axis wind power generation platform, which includes two vertical-axis wind power generation systems, a floating platform and an anchoring system; the floating platform is an isosceles triangle platform, and two vertical-axis wind power generation systems The wind turbine system is installed at two bottom corners, and the wind rotor structures of the two vertical axis wind turbine systems are symmetrical about the center line of the isosceles triangle; the blade installation angle ɑ of the vertical axis wind turbine system in the left corner is the The blade installation angles of the vertical axis wind turbine system are equal in value and opposite in sign. The invention adopts a double-rotor arrangement, reduces the yaw bending moment borne by the floating foundation, reduces the requirements of the floating wind power platform on the mooring system, and improves system safety. For a single floating platform, since the present invention installs two vertical axis wind power generator systems, not only the safety requirements of the floating platform are reduced, but also the power generation of a single floating platform is doubled.

The invention relates to an oil cooling system for high-temperature equipment, which comprises a storage tank, an oil pump, a heat exchange system, a connecting pipeline and a measurement control system, wherein a cooling medium is heat carrier oil; the heat carrier oil heat exchange system is a tubearray heat exchanger; one inlet of the tubearray heat exchanger is connected with a fan or an air conditioner; the other inlet of the tubearray heat exchanger is connected with the heat carrier oil getting hot; and low-temperature heat carrier oil flowing out from a tubearray enters the storage tank. The heat carrier oil (GB/T4016-83) used in the system is also named heat-transfer oil, heat-conduction oil or hot kerosene and the like, and is a heat transfer medium; the heat carrier oil has the advantages of uniform heating, accurate temperature regulation and temperature control, capability of absorbing heat and generating high temperature under low vapor pressure, good heat transfer effect, energy saving, convenient delivery and operation and the like; and the system saves a water treatment system and water treatment equipment, improves the cooling efficiency of the system, reduces the maintenance work load of the equipment and pipelines, and has higher safety and reliability.

The invention is a depth-type sand filter, the size of sand gradually diminishing with the flow direction of the normal filtering fluid. It leads the fluid to the inlet of the sand filter through the pipeline, firstly holds back big suspension through big sand area, then holds back medium suspension through medium sand area, finally eliminates most fine suspension through fine sand area, and then makes the fluid flow out from the outlet. It is composed of wall body, filtering sand and ground leak; the wall body is set with inlet and outlet, the ground leak is set under the wall body, the filtering sand is spread in the liquid flow direction in turn according to the size. It can adopt upflow and downflow modes. It can stably and economically run in a wide range. It is applied to economical sand filtering field, especially the field where the sand filter is used infrequently or discontinuously.

The invention discloses a method for absorbing and recycling yellow phosphorus burning heat by using heat-conducting oil. The heat-conducting oil of which the boiling point is 160 to 400 DEG C serves as a heat-conducting medium, an oil circulating pump pumps the heat-conducting oil into a burning furnace jacket, and the high-temperature heat-conducting oil absorbing the yellow phosphorus burning heat is conveyed into an evaporator, a steam generator and an air heater to prepare concentrated solution or steam or dry air. Technical requirements of different temperature heating and cooling can be met by the method, so the potential hazard of over pressure caused by phase change gasification can be effectively avoided, the operation pressure and the safety requirement of a high-temperature heating system are greatly reduced, the reliability of a system and equipment is improved, high-temperature heat, middle-temperature heat and low-temperature heat are recycled, the recovery rate of the heat is improved, the problem of heat required in a technical flow can be solved, a special coal boiler, an afterheat boiler and a cooling water device are omitted, the yellow phosphorus burning heat yellow phosphorus burning heat cost is reduced, energy resources are saved, and the method has better economic benefit, social benefit and environment-protecting benefit.

The invention relates to a method for preparing fuel oil through catalytic hydrogenation of shale oil. The method comprises the following steps: (a) removing impurities of which the particle size is greater than 20 mu m from the shale oil, mixing the shale oil with a sulfur-containing assistant and then mixing the shale oil with hydrogen, thus obtaining hydrogen mixed raw oil; (b) enabling the hydrogen mixed raw oil to react in a hydrogenation protective reactor and a hydrorefining reactor in sequence, carrying out gas-liquid separation on a reaction output object, mixing a liquid separation object of a low-pressure separator with desalted water containing an ammonia catcher, and entering a hydro-upgrading reactor for reacting; (c) carrying out primary separation on the reaction output object through a second high-pressure separator, and carrying out secondary separation on a separation object at the lower part of the second high-pressure separator through a second low-pressure separator; (d) separating materials in the second low-pressure separator, recycling a gas separation object at the top part, and feeding the liquid separation object at the bottom part to a fractionating tower; (e) fractionating in the fractionating tower, thus obtaining a final product. By using the method disclosed by the invention, the problem of coking can be effectively solved, poisoning cannot be easily caused by a catalyst, and the production cost is low.

The invention provides a centerless multi-bank shared mobile payment system comprising a mobile banking client, an acquiring merchant terminal, a merchant service platform, and an acquiring bank system. The mobile banking client is connected with the acquiring merchant terminal, the acquiring merchant terminal is connected with the merchant service platform, and the merchant service platform is connected with the acquiring bank system. The acquiring merchant terminal comprises an order input module used for inputting order information, a payment information generation module connected with the order input module and used for receiving the information of the order input module and generating payment information, and a communication module connected with the order input module and the payment information generation module and used for transaction information interaction and transmission. The mobile banking client acquires and identifies payment information of the acquiring merchant terminal to complete transaction. A merchant resource and payment environment shared by multiple commercial banks is realized. The cost of payment through mobile banking is lowered.

The invention relates to an aluminum alloy forging die with fluid channels and an aluminum alloy forging technique. The fluid channels are formed in an upper die body and a lower die body correspondingly, inlets of the fluid channels sequentially connected with a pump and a storage box through pipelines, outlets of the fluid channels are connected with a collection box through pipelines, and cooling media are stored in the storage box. After a forged piece is formed through forging, the upper die body and the lower die body continues to be assembled, the cooling media flow into the collection box from the storage box via the fluid channels under the effect of the pump, and then intra-die quenching is completed; and the strength and dimensional precision of the forged piece are guaranteed, and the life of the die is prolonged.

A transmission network planning method considering load transfer capability of distribution network is presented. The method first constructs the initial model of the transmission network planning considering the ground state and the N-1 expected fault according to the conventional technical parameters of the main network, and establishes a load transfer model, and then the load transfer model iscombined with the initial model of the transmission network planning considering the ground state and the N-1 expected fault to obtain the transmission network planning model, and the solver algorithmis used to solve the model at last. This design not only takes into account the safety and economic requirements of the system, but also reduces the difficulty of solving the model.