192results about How to "Meet protection needs" patented technology

The invention discloses a system and method for achieving VPWS redundancy protection rapid convergence and relates to the technical field of network communication. The system comprises an access-side PE device A, a convergence-side primary PE device B and a convergence-side standby PE device C. The access-side PE device A comprises a first BFD / MPLS-TP OAM module, a first VPWS control module and an ARP / NDP caching transmitting module. The convergence-side primary PE device B comprises a second BFD / MPLS-TP OAM module, a second VPMS control module and a first ARP / NDP module. The convergence-side standby PE device C comprises a third BFD / MPLS-TP OAM module, a third VPWS control module and a second ARP / NDP module. By the adoption of the system and method for achieving VPWS redundancy protection rapid convergence, rapid switching of downlink services can be achieved, the protection requirement of interruption of a telecommunication network at the level of 50ms can be met, the stability and the safety of the network are improved, and the user experience is improved.

The embodiment of the invention discloses a real name authentication system and method used in an express industry, and can carry out real name authentication via a network electronic identity label to protect a personal identity and private information. The system comprises a terminal device, an express enterprise information platform and an eID third party authentication platform; the terminal device is used for reading digital certificate information in an eID card held by a user, receiving a digital signature generated by the eID based on the digital information, and sending a user authentication request to the eID third party authentication platform via the express enterprise information platform; and the eID third party authentication platform is used for obtaining a digital certificate, carrying out verification on the digital signature according to the digital information and the digital certificate so as to carry out authentication on an identity of the user, and sending indication information of an authentication result so as to facilitate the terminal device to obtain the authentication result.

The invention discloses a picture camouflaging method. The picture camouflaging method comprises the steps of determining a camouflaged picture and saving the camouflaged picture as a first picture file after detecting an original picture to be camouflaged, conducting encryption on the original picture to be camouflaged to generate an encrypted data block, splicing the first picture file with the encrypted data block and generating and saving the encrypted picture file. The invention discloses a picture viewing method. The picture viewing method comprises the steps of decrypting the encrypted data block when the determined picture file carries with indication information for indicating camouflage processing and obtaining the original picture data to be displayed after decryption succeeds, wherein the picture file carried with the indication information is formed by splicing the first picture file and the encrypted data block, the first picture file includes camouflaged picture data, and the encrypted data block corresponds to the encrypted original picture data. The picture camouflaging method can be used for conducting picture camouflaging processing. When the encrypted picture is viewed by using the picture viewing method, real picture contents are displayed if the decryption succeeds.

The invention discloses a bidirectional ESD protection structure with an embedded low trigger voltage PNP structure. The bidirectional ESD protection structure is used for ESD protection devices on ICchips and composed of a P substrate, N traps, a P trap, a first N+ injection region, a first P+ injection region, a first P+ span bridge, a second P+ injection region, a second P+ span bridge, a third P+ injection region, a second N+ injection region, metal anodes, metal cathodes and mulitple field oxygen isolation regions. Under the function of high-voltage ESD pulses, on the one hand, a spurious SCR current assistant protection path is formed by the first P+ injection region, the first N trap, the P trap, the second N trap and the second N+ injection region, so that the failure current of the devices can be increased, and the ESD robustness of the devices can be improved; on the other hand, a spurious PNP structure is formed by the first P+ injection region, the first N trap, the firstP+ span bridge, the P trap and the second P+ injection region, so that the maintenance voltage of the devices is increased, and the latch-resisting capability of the devices is improved. The ESD protection device is of a symmetrical structure, and can achieve the bidirectional ESD protection function and reduce the occupied layout area.

The invention discloses a protective coating for molten sediment on the surface of a thermal barrier coating and a preparation method thereof. The thermal barrier coating comprises at least one bonding layer and at least one ceramic layer, the surface of a high-temperature alloy matrix is coated with the bonding layers, and the surfaces of the bonding layers are coated with the ceramic layers. The ceramic layers making contact with the bonding layers are yttrium-oxide-based partially stabilized zirconium oxide layers. The surfaces of the ceramic layers are further coated with the protective coating. The protective coating is prepared from aluminum-oxide-based spraying powder through a supersonic-speed plasma spraying technique. The preparation method of the protective coating includes the steps of drying of the aluminum-oxide-based spraying powder, workpiece clamping, parameter adjustment, even preheating of the surface of the thermal barrier coating through plasma flames generated by a spray gun of ultrasonic-speed plasma spraying equipment, starting of powder feeding, and forming of the protective coating by spraying the aluminum-oxide-based spraying powder to the surface of the thermal barrier coating one to three times.

The invention discloses a novel puncture-proof clothing fabric. The novel puncture-proof clothing fabric comprises an outer fabric layer, an outer puncture-proof layer, a first insulation layer, a middle buffer layer, an inner puncture-proof layer and an inner fabric layer which are sequentially arranged from outside to inside. The outer puncture-proof layer is woven from first high-strength yarn, wherein the first high-strength yarn comprises carbon fiber and high-strength polyester yarn; the middle buffer layer is a glass fiber filling layer; the inner puncture-proof layer is woven from second high-strength yarn, wherein the second high-strength yarn comprises aramid fiber and high-strength polyester yarn. Therefore, the novel puncture-proof clothing fabric has good puncture-proof performance and can meet the protection requirements of various industries.

The invention relates to an air filtering membrane which comprises a first transparent organic thin membrane and a second transparent organic thin membrane which are stacked together, and a graphene thin membrane clamped between the two transparent organic thin membranes, wherein a plurality of first through holes are formed in the first transparent organic thin membrane; a plurality of second through holes are formed in the second transparent organic thin film and are equal to the first through holes; the diameters and the positions of the first through holes are consistent with those of the corresponding second through holes, so that a plurality of passageways are formed; and the graphene thin membrane is provided with a plurality of cracks, or a plurality of through holes are formed in the graphene thin membrane and correspond to the passageways formed by the first through holes and the second through holes. The air filtering membrane can stop ultra-small dust particles and completely meet the requirement on prevention of PM2.5, and furthermore, is high in ventilating property, transparent, soft, folding, easy to carry and convenient to mount.

The invention discloses a distribution line bi-directional latch-up protection method based on master station decision identification. By means of the network communication technology and peer-to-peer communication between line terminals (FTUs), fault and action information is switched between the upper level of protection and the lower level of protection which are adjacent, and therefore short-circuit fault bi-directional latch-up protection is achieved, the action time delay caused by multilevel matching is effectively shortened, rapid fault isolation is achieved, and the number of fault hazards is reduced. According to the method, the current situation that the majority of outlet circuit breakers do not participate in latch-up on site is fully considered, and faults can still be accurately positioned and isolated after power outage transferring and network topology changing. The distribution line bi-directional latch-up protection method based on master station decision identification is suitable for the situation that the outlet circuit breakers do not participate in latch-up and particularly suitable for line protection of a power distribution network which is designed in a closed loop mode and runs in an open loop mode (namely transferring of a standby power supply exists).

The invention discloses a constrained ceramic-metal composite bulletproof armored plate and a making method thereof. The constrained ceramic-metal composite bulletproof armor plate consists of a plurality of constrained ceramic-metal composite bulletproof units; each constrained ceramic-metal composite bulletproof unit comprises a metal back plate, a metal constrained plate and a ceramic block, wherein the metal constrained plate and the ceramic block are arranged on the metal back plate, the ceramic block is arranged in the metal constrained plate, and the ceramic block and the metal constrained plate are assembled and connected through interference fit. The constrained ceramic-metal composite bulletproof armored plate disclosed by the invention has a broad application prospect in variousbulletproof occasions of armed helicopters, armored cars, ships and warships, tanks and the like.

The invention is a path selecting method for regulating link cost, comprising the steps of: regulating link cost according to link protection attributes, increasing a chance that a link with inherent protection is preferred, and finding the path by shortest-path algorithm; checking the result: if the inherent protection mechanism of transmission network bottom layer has provided perfect protection, ending the algorithm; otherwise continuing executing the algorithm, regulating the link cost according to the link protection attributes and independence and reducing chances that the link with inherent protection and links the working path contains are selected, and finding a protection path of meeting a certain independence of the working path by the shortest-path algorithm; comparing the two results, selecting a more perfect path as result and returning. And it can effectively calculate a protection path and prefers the link wit protection mechanism.

The invention discloses a female die for manufacturing a wall thickness-variable glove and the glove manufactured through the female die, and aims at solving the problems that at present, existing equal-wall-thickness gloves for X-ray protection are manufactured through common dies in a dipping manner, and wall thickness-variable gloves cannot be manufactured. The female die of the wall thickness-variable glove comprises a base, an arm part, a palm part and finger parts. The base, the arm part, the palm part and the finger parts are sequentially connected. The palm part comprises a palm center part and a palm back part connected with the palm center part. The die can be adopted for effectively thickening the hand back part of the manufactured glove, and therefore flexibility of other parts of the glove is guaranteed on the premise of effectively protecting the hand back of a doctor, the characteristics of protection and use flexibility are both achieved effectively, and good application prospects are achieved. The female die can be used for manufacturing the wall thickness-variable glove, and therefore the hand back part of the glove is locally thickened, and the requirement for protection of the hand back of the doctor under the environment such as an interventional operation is met.

The invention provides a hidden type reinforcing node of a side span node of a wood structure traditional architecture and a preparation method of the hidden type reinforcing node, and belongs to the technical field of protection works for the wood structure traditional architecture. Beam column components are connected into a whole through connection long pull rods, reinforcing plates and fixing nuts which are installed inside a beam column node in a hidden mode, so that the pull-out resistance capacity and rigidity of the node are improved, and the appearances of the components are recovered by filling epoxy resin adhesives into notches. By means of the hidden type reinforcing node of the side span node of the wood structure traditional architecture and the preparation method of the hidden type reinforcing node, the bearing capacity of the node can be improved, the wood structure traditional architecture is protected, and the damage to the structural appearance caused by a former external reinforcing method is avoided.

The invention relates to negative sequence inhibiting device and method for an asynchronous motor under an unbalanced voltage condition. The device is characterized in three phases of a positive / negative sequence voltage current detecting module are respectively correspondingly connected with three phases at the asynchronous motor; the input side of a negative sequence inhibiting wave generation module is connected to a power grid through a voltage regulator; a power supply module is connected with the power grid. According to the technical scheme, the device has the advantages that the positive and negative sequence components and unbalance factor of the asynchronous motor end of the motor in running are acquired on real time; the microcomputer is used for calculating and processing, a corresponding control instruction is sent to the negative sequence inhibitor to generate voltage waveform for inhibiting the negative sequence component of the asynchronous motor, so as to reduce the adverse influence of the negative sequence component on the asynchronous motor; in addition, when detecting that the voltage unbalance factor of the asynchronous motor end and the stator single-phase maximum current exceed the extreme safety operation range, an alarming signal is sent, a power supply of the asynchronous motor is cut off, and therefore, the safety operation of the asynchronous motor is ensured.

The invention provides a distributed feeder automated terminal and a distribution line fault distinguishing system and method. Each of two ends or multiple ends of a distribution line is provided with one distributed feeder automated terminal, the two ends or multiple ends of the distribution line synchronously sample line current signals and record waves through the distributed feeder automated terminals, the distributed feeder automated terminals transmit the recorded waveforms by means of peer-to-peer communication if the line experiences a fault, and fault positioning and fault isolation are achieved at the distributed feeder automated terminals by judging current phase angle of the current signals sampled at the adjacent two ends; massive it is satisfied that after massive access of distributed power supplies to a distribution network, accurate fault positioning and isolating are performed if the distribution network experiences a fault.

The invention discloses a novel solar power generation balcony rail, which relates to the field of balcony rails, and comprises longitudinal rails, a horizontal rail, a foundation bed, a load-bearing handrail, a movable flowerpot and a solar power generation device. The longitudinal rails are arrayed above the foundation bed at equal distances; the horizontal rail is welded in the middle of the longitudinal rails; the load-bearing handrail is welded to the upper ends of the longitudinal rails; the solar power generation device comprises solar cell panels and storage batteries; the solar cell panels are arranged on the surface of the horizontal rail and are connected with the storage batteries through guide wires; a sliding chute is arranged on the load-bearing handrail; the movable flowerpot comprises fixed walls, a fixed slot, fixed bolts and a movable foundation bed; the movable foundation bed is embedded into the sliding chute; the lower ends of the fixed walls are fixed into the fixed slot through the fixed bolts. The novel solar power generation balcony rail can provide indoor power through clean solar energy, and the movable flowerpot is arranged, so that a user can conveniently perform pot plant, and the novel solar power generation balcony rail is practical in function and worth to be popularized.

A method for improving high-low voltage ESD protection performance by employing a well segmentation technology concretely comprises a well segmentation technology and a special metal wiring method toimprove the reliability of on-chip IC low-voltage ESD protection. A device 1 in one embodiment of the invention is mainly formed by a P substrate, a first N well, a first P well, a second P well, a second N well, a third P well, a third N well, a fourth P well, a fourth N well, a fourth P+ injection region and a fifth N+ injection region. Under an ESD stress effect, the well segmentation technology is employed so as to obtain a low-voltage ESD protection device of an SCR triggered by a diode, avoid generation of an avalanche breakdown effect at the internal portion of the device and reduce a triggering voltage of the device and so as to greatly reduce stray capacitance of the device and meet ESD protection demands of a radio frequency IC. Besides, the positions of the N+ injection region and the P+ injection region at the internal portion of the device are regulated to change the ESD current discharge path of the SCR structure, and the method provided by the invention combines the metal wiring design to regulate a maintenance voltage of the device.

The invention belongs to the technical field of petroleum development, and particularly relates to a sand prevention agent for achieving auto-aggregation of sand grains. The sand prevention agent comprises three parts including an auto-aggregation liquid, an auto-aggregation auxiliary agent and a sand consolidation agent. Main ingredients of the auto-aggregation liquid are natural polysaccharide compounds, and main ingredients of the auto-aggregation auxiliary agent are inorganic salt. The sand prevention agent achieves auto-aggregation of the sand grains through the synergistic effect among chemical agents of the sand prevention agent, the stratum sand grains can be packaged and clustered to be fixed to corresponding positions of the stratum, the consolidation effect is obviously improved, the actuating range is expanded, and a good sand consolidation effect can be achieved on fine-powder sand.

The invention provides a DC motor protector and an operation method thereof, and relates to an emergency protection circuit device for a motor. The device comprises a signal sampling part, a control part and an execution part. Through design of operation modes of a sensor module and a signal processing module and a hybrid switch, short-circuit protection is achieved; energy signal interference is prevented; a contact loss of a mechanical switch is avoided; and prediction on the short-circuit condition can be achieved by the operation method, so that the disadvantages that an existing protector product is limited by the expansion capacity, cannot achieve the protection function in multiple energy environments, and is insufficient in stability and relatively poor in universality are overcome.

The invention discloses a method for preventing welding jam of an air film cooling hole. The method comprises the steps that 1), a graphite core is inserted into the air film cooling hole in a part needing repair welding; 2), repair welding is conducted on cracks or ablation portions of the part; and 3), after repair welding is completed, the graphite core in the air film cooling hole is mashed and taken out. According to the method for preventing welding jam of the air film cooling hole, the graphite core is selected as a protection material, and graphite has the beneficial effects of being high in melting point, high in temperature resistance, small in thermal expansion coefficient and soft but large in brittleness; in addition, the graphite has good lubricity; when the graphite core is used for protecting the air film cooling hole, molten metal on the welding portion cannot damage the shape and the size of the air film cooling hole because of the high temperature resistance and stability of the graphite; the situation that the graphite core expands and cannot be taken out due to high temperature generated by arc burn during welding is avoided; meanwhile, the graphite has soft and lubricating characteristics, and it can be guaranteed that the post-weld graphite is not likely to be stuck in the air film cooling hole; and even if the stuck phenomenon exists, the graphite core can be mashed into powder and taken out with a tool because of the large brittleness of the graphite core.

The invention discloses a clamping device for machining a thin-walled disc part. Preliminary clamping and positioning of the part is performed by a clamp body, a support is pushed to move backwards along a linear rail by a hydraulic cylinder, and the part is pressed by a floating gland, so that primary clamping of the part is realized; after the part is clamped, a pneumatic angular positioning mechanism retracts, a spindle of a machine tool rotates, the part rotates together with a rotating gland, and then a surface A, a hole B, a groove G, an external diameter F and a surface H of the part can be machined by the machine tool; and so long as a turning tool of the machine tool extends into the rotating gland via an axial through hole, a surface C, a groove F and a hole E of the part can be machined. Compared with the traditional technology, the clamping device provided by the invention can reduce the clamping frequency of the part, can realize turning of all machined surfaces of the thin-walled disc part by clamping the part once, effectively avoids part collisions caused by turnover between procedures, can remarkably improve the machining efficiency of the thin-walled disc part, ensures the machining accuracy of the part, improves the machining quality of the product, reduces the cost and improves the benefit.

The invention discloses a rare earth impact resistance steel plate and a preparation method thereof. The rare earth impact resistance steel plate is prepared from the components in percentage by mass:0.18%-0.36% of C, 0.2%-0.8% of Si, 0.75%-1.5% of Mn, 0.8%-1.8% of Cr, 1.5%-2.3% of Ni, 0.25%-0.6% of Mo, 0.15%-0.25% of V, 0.015%-0.025% of Nb, less than or equal to 0.01% of P, less than or equal to0.01% of S, 0.006%-0.01% of RE, and the balance Fe and inevitable impurities. The yield strength of the obtained steel plate is 1350 MPa to1480 MPa, tensile strength is 1550 MPa to 1750 MPa, the extension rate is 12%-14%, the normal temperature impact performance (u-shaped gap) is 55-60 J, low temperature impact performance (-40 DEG C, u-shaped gap) is 30-38 J, and the Brinell hardness HBS is 450-550.

The invention relates to a method for implementing nesting protection of client account information based on network identity and belongs to the technical field of network information management. The method includes establishing operation of nesting protection of the client account information, encrypting the account information by using eID (electronic identity) network identity for account information in the highest protection level by the client according to the operation, and performing nesting encryption of account information in other protection levels according to an upper level. By the method, nesting protection of network identities in different levels can be achieved, security recovery of the network identity based on the eID is achieved, and requirements for network identity application and protection of identity information privacy are met. In addition, an application manner of the method for implementing nesting protection of the client account information based on network identity is simple and convenient, implementation cost is low, and application range is wide.

The invention discloses a treatment method for high concentration organic waste liquid in sucralose production. The method includes: firstly conducting distillation concentration under reduced pressure on high concentration organic waste liquid twice, separating a solvent, water and a light component, and removing an inorganic salt from the solution, then adding strong base for backflow, then conducting reduced pressure distillation to separate the organic small molecule structure light component obtained by alkali degradation, finally adding a polymeric flocculant for flocculation precipitation of the remaining small quantity of macromolecular organic matter, performing concentration and conducting treatment with a strong oxidant, degrading the macromolecular organic matter into small molecule organic matters, and then conducting deep treatment in a biochemical pool. The method provided by the invention completely realizes degradation of high concentration organic waste liquid, enhances the economic benefits, can practically and effectively meet the environmental protection demands, also lowers the wastewater treatment cost, and provides a new way for the high concentration organic waste liquid produced in the industrial production process of sucralose.

The invention discloses a manufacturing method for an aluminum-based electromagnetic absorption plate. The method comprises the following steps of: coating a protective membrane on the surface of an aluminum or aluminum alloy workpiece, and performing sand blasting and anodic oxidation on the workpiece to form a plurality of conical structures with micropores on the surface of the plate; and spraying or dip-coating an electromagnetic wave-absorbing material on the surfaces of the structures. The manufacturing method is favorable for decomposition and consumption of electromagnetic wave energy, realizes the high-efficiency electromagnetic absorption performance of the aluminum-based electromagnetic absorption plate, is low in manufacturing cost, and can be applied to the fields of buildings, electron and military industry on a large scale.

The invention relates to the technical field of anti-corrosion coatings, and particularly relates to a long-acting anti-corrosion solvent-free universal epoxy coating and a preparation method thereof.The long-acting anti-corrosion solvent-free universal epoxy coating comprises a first component and a second component, wherein the first component comprises epoxy resin, adipic acid modified epoxy resin and graphene dispersion liquid; and the second component comprises an amine mixed curing agent and an amino silane coupling agent. The coating provided by the invention effectively solves the problems of large internal stress, poor coating flexibility and corrosion resistance, easiness in oil surface and gloss loss in a low-temperature environment and a high-humidity environment and the likeof an existing solvent-free epoxy coating system, has excellent corrosion resistance, good recoatability, excellent matching performance with various finishing paints, good weather resistance and thelike, has good film-forming property in low-temperature and high-humidity environments, has no oil surface or gloss loss, and achieves the technical goals of universality of the whole ship and universality in four seasons.

The invention discloses a bidirectional high-voltage ESD protection device of a full-symmetric LDMOS triggered SCR structure, and belongs to the field of electrostatic discharge protection and surge resistance of integrated circuits. The protection device is mainly composed of a P substrate, a deep N well, a first P well, an N well, a second P well, a first P + injection region, a first N + injection region, a first polysilicon gate, a first thin gate oxide layer, a first field oxide isolation region, a second P + injection region, a second field oxide isolation region, a second polysilicon gate, a second thin gate oxide layer, a second N + injection region and a third P + injection region. The two NLDMOSs are embedded to form an auxiliary trigger SCR current path in which the on-state NLDMOS and the off-state NLDMOS are connected in series. The voltage withstanding capability of the device is improved, so that the device meets the ESD protection requirement of a high-voltage power supply domain, the ESD robustness of the device is enhanced, the discharge efficiency of the device in unit area is improved, the carrier concentration of a base region in a parasitic SCR structure is reduced, and the maintaining voltage of the device is improved.

The invention discloses a blood collection and transfusion integrated device which comprises a blood collection device. The blood collection device comprises a blood collection bag (6) and a blood collection needle (1) connected with the blood collection bag (6) through a blood collection tube (4), the blood collection bag (6) is communicated with a leukocyte removal soft shell filter (8) through a blood delivery tube (7), the leukocyte removal soft shell filter (8) is communicated with a blood storage bag (13) through the blood delivery tube (7) at back of the leukocyte removal soft shell filter (8), the blood storage bag (13) is communicated with a scalp needle (21) at the tail end of a blood transfusion tube (14) through the blood transfusion tube (14), and a blood filter (18) and a flow adjusting device (19) are sequentially arranged on the blood transfusion tube (14). The blood collection and transfusion integrated device has the advantages of being small in size, light in weight, complete in function, suitable for use and easy to use and being combined to the high degree. The blood collection and transfusion integrated device reflects a series of advanced ideas on blood collection devices, leukocyte filtering devices, blood transfusion operation, biological safety protection and the like, and is clear in identification and convenient to operate.

The invention provides a children emollient containing a lactobacillus fermentation extract and a preparation method of the children emollient. The children emollient is prepared from the following raw materials of butyrospermum parkii fruit fat, hydrolyzed yeast protein, xylitol, glucose, hydroxyphenyl propionamide benzoic acid, coconut oil, shea butter, olive fruit oil, squalane, simmondsia chinensis seed oil, white oil, cetostearyl alcohol, glucoside, polyglycerol, provitamin B5, glycerol, xanthan gum, a preservative, a thickening agent, a skin barrier repairing agent, a repairing composition and the balance of water; and the skin barrier repairing agent is prepared from ceramide, phytosterol and fatty acid. The children emollient prepared by the invention can care and moisten delicate skin of children in multiple directions, for example, after sunburn, the skin erythema index is effectively reduced, the water content of the skin is increased, and the damaged skin is repaired. In addition, the product has a waterproof function, the skin protection requirements of children under various situations are met, and the damaged skin of the children can be better repaired through the synergistic effect of various repairing components.

A solving method of 4 fibre Multiplex Section Shared Protection Rings fault in optical transmission network. It concerns with following field; 1. appoints certain transmission channel and transmit echo signaling. 2. The net element which is received order that commands PS-R ring inverting the instruction of administration of networks sends the corresponding net elemtn request signaling; after the corresponding net element receives the requests, returns the responses signaling; The net element that neither receives order from administration of networks nor receives request signaling send close-in net element a default signaling. 3. judge transmit net element whether receives PS_R ring inverting the instruction of administration of networks at direction 1 or 2; if it is received then send close-in net element request signaling that corresponds to FS-R; if not enter 4.