Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

91results about How to "Uniform protection" patented technology

Privacy protection method for trust state evaluation

ActiveCN108600271ABalancing Privacy Preservation and Perceived QualityPrivacy protectionUser identity/authority verificationPrivacy protectionHomomorphic encryption
The invention discloses a privacy protection method for trust state evaluation. Majority of the existing solution method is based on the homomorphic encryption and like encryption method, this methodis high in privacy security, but large in computation expenditure, so that the method is hard to operate on a mobile terminal. On the other hand, since the crowd-sourcing sensing policy oriented to the task distribution is continuously perfected, the existing task distribution policy mainly focuses on the expenditure and the completion time, and ignores the privacy of the participant and the influence on the task sensing result by the reliability. Therefore, by matching the basic capacity attribute of the participant in the crowd-souring sensing network with the task attribute, the participantmeeting the basic condition is screened by using a Bloom filter, and then in the candidate participant, the capacity trust of the participant is obtained by further computing the similarity of the capacity weight of the participant and the task weight, and the evaluation on the participant trust value is accomplished by utilizing the relative reputation value of the participant and the task publisher, and the whole participant selection process is realized on this basis. The design method provided by the invention can recruit appropriate participant when the privacy of each of the participantand the requester is protected, and the aim of balancing the privacy protection and the sensing quality is achieved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Protection device for gas-protective welding

The invention provides a protection device for gas-protective welding, comprising a gas pipe, a centering cover plate, a gas connecting-guide rod, a supporting rib and a sealing cover plate, wherein the sealing cover plate is connected with the supporting rib, the lower end of the gas connecting-guide rod is flexibly connected with the supporting rib; the gas connecting-guide rod is fixed with the centering cover plate via a fastening mechanism and is connected with the gas pipe; the gas connecting-guide rod is in a hollow structure, the pipe wall of the gas connecting-guide rod is provided with a gas outlet hole; the centering cover plate is provided with an exhaust hole; and the sealing cover plate is made of elastic material. When the protection device provided by the invention is utilized to perform gas protection on the welding for a weld seam of an intersecting line of two revolving curved surfaces, the protective gas can be saved considerably and provided constantly, stably anduniformly, thus the welding quality at the weld seam is dramatically raised and the cost is lowered. The protection device provided by the invention is also applicable to the gas-protective welding for three-way pipes with different diameters, materials and specifications and for the weld seam of the intersecting line of two different revolving curved surfaces.
Owner:SHANGHAI MORIMATSU PHARMA EQUIP ENG

Cross-linked polyvinyl alcohol supported palladium nano catalyst as well as preparation and application thereof

The invention discloses a cross-linked polyvinyl alcohol supported palladium nano catalyst as well as preparation and application thereof. The carrier of the cross-linked polyvinyl alcohol supported palladium nano catalyst is cross-linked polyvinyl alcohol and the active ingredient of the catalyst is palladium, and the yield of the product obtained by catalyzing Suzuki coupling reaction by using the cross-linked polyvinyl alcohol supported palladium nano catalyst is high; the cross-linked polyvinyl alcohol supported palladium nano catalyst can be repeatedly recovered and utilized a plurality of times, and as most solvent in the Suzuki coupling reaction is water, which is advantageous for environmental protection; in addition, palladium exists in the cross-linked polyvinyl alcohol supported palladium nano catalyst in the form of nano particles, and can be evenly dispersed so as to enhance catalytic performance; furthermore, the carrier for immobilizing palladium is cross-linked polyvinyl alcohol, the macromolecules forming the cross-linked polyvinyl alcohol are high in hydrophily so that the cross-linked polyvinyl alcohol is more suitable for reacting in an aqueous solution to form hydrogel, and good in nano effect of constraining palladium; therefore, the service life of the cross-linked polyvinyl alcohol supported palladium nano catalyst is prolonged.
Owner:SHAOXING UNIVERSITY

Rotary armored vehicle

The invention discloses a rotary armored vehicle which can be used for effectively defensing the direct attacks from most of missiles and shells in modern wars and armed conflicts in a brand new mode with light system weight. The rotary armored vehicle is characterized in that for achieving the purpose of overall defence, the two sides of a gun turret are respectively provided with a shield supporting arm, and the two shield supporting arms are connected with a shaft at the tail part; the top of the supporting arm is provided with a large-area armored shield which can cover most of the projection of a vehicle body, and the front landing body of the armored shield is supported by the supporting arm so that the armored shield can rotate around the vehicle body; the top of the gun turret is provided with a comprehensive omnidirectional battlefield monitor which can raise, and images and dangerous information observed by the monitor are directly transmitted to the gun turret, so that a command system controls the gun turret to turn quickly; and meanwhile, an assistant pitching control device raises the shield so as to form hemispherical defense to the vehicle body. By utilizing the rotary armored vehicle, the purposes of preventing combatants from damage caused by various firearms of the enemies and improving the viability of the chariot can be achieved.
Owner:杨茂亮

Cuprous-oxide-based heterojunction photocathode and preparation method thereof

The invention discloses a cuprous-oxide-based heterojunction photocathode and a preparation method thereof. The cuprous-oxide-based heterojunction photocathode structurally comprises a gold electrode layer, a cuprous oxide layer, an aluminum-doped zinc oxide layer, a titanium dioxide layer and a platinum cocatalyst layer from bottom to top and is packaged with epoxy resin. The preparation method of the cuprous-oxide-based heterojunction photocathode comprises the steps that firstly, a cuprous oxide slice is prepared through a thermal oxidation method, and the cuprous oxide slice serves as a light absorption layer and also serves as a substrate of the photocathode; a layer of gold electrode is deposited on one side of the cuprous oxide substrate, a wire is led out, and the side is packaged with epoxy resin glue; then, after the other side of the cuprous oxide substrate is etched, the aluminum-doped zinc oxide layer and the titanium dioxide layer are deposited in sequence, and the edges are packaged through the epoxy resin glue; and finally, platinum particles are deposited on the surface of titanium dioxide to serve as cocatalysts. By means of the cuprous-oxide-based heterojunction photocathode and the preparation method of the cuprous-oxide-based heterojunction photocathode, the difficulty in preparing the photocathode with the cuprous oxide substrate prepared through the thermal oxidation method is greatly lowered, the preparation process is simple, the light current is high, and wide development prospect is achieved.
Owner:ZHEJIANG UNIV

Fine finish polishing tool

PendingCN108890544AReduce usageRealize small area processingBonded abrasive wheelsCircular coneEngineering
The invention provides a fine finish polishing tool. The fine finish polishing tool comprises a grinding body and an installing connecting rod. The installing connecting rod is cylindrical, and the grinding body is disc-shaped. The installing connecting rod is coaxially connected with the grinding body, and a specific value of a diameter of the grinding body and a diameter of the installing connecting rod is 1.2-2.4. The grinding body comprises a connecting part and a polishing part. The connecting part is truncated cone-shaped, and has circular top face and bottom face, and a side face of which a shape is a circular conical surface. A diameter of the top face is less than a diameter of the bottom face. The top face is coaxially connected with the installing connecting rod. The polishing part is formed on the bottom face. The polishing part is annular and protruded and installed at the peripheral part of the bottom face of the connecting part, and the polishing part is provided with multiple discharging channels for discharging wastes generated in a polishing process. It can be clearly shown that the described fine finish polishing tool is capable of meeting multiple polishing requirements through a high-precision small-scale design, improving processing efficiency, and improving a processing success rate.
Owner:CONPROFE TECH GRP CO LTD +1

Device for precise fertilization to rice

The invention relates to the field of agricultural equipment and in particular relates to a device for precise fertilization to rice. The device comprises a fixing device, a feeding device and a casting device, wherein the feeding device for stirring and conveying is fixedly mounted on the upper surface of the fixing device; the casting device for casting a fertilizer is fixedly mounted on the upper surface of the feeding device; specifically, the fixing device comprises a fixing column; and a motor is fixedly mounted inside the fixing column. The device for precise fertilization to rice is inserted into a rice field through the fixing column; due to the appearance designing of the fixing column, the fixing column can be conveniently inserted into the rice field and is prevented from tilting; compared with a common large-size machine, the device for precise fertilization to rice is small in size, light in self weight and free of the situation that rice is run over to death when being used; due to adoption of a handheld rack, the device for precise fertilization to rice can be conveniently moved and controlled by a user; and with the fixing column, the applicability of the device for precise fertilization to rice in the rice field can be greatly improved, and the use effect of the device can be improved.
Owner:ANQING NORMAL UNIV

Cross-linked polyvinyl alcohol-supported palladium nanocatalyst and its preparation and application

The invention discloses a cross-linked polyvinyl alcohol supported palladium nano catalyst and its preparation and application. The carrier of the cross-linked polyvinyl alcohol supported palladium nano catalyst is cross-linked polyvinyl alcohol, and the active component is palladium. The product yield obtained by the Suzuki coupling reaction catalyzed by the alcohol-supported palladium nanocatalyst is high; at the same time, the cross-linked polyvinyl alcohol-supported palladium nanocatalyst can be recycled and used repeatedly, and since most of the solvent in the Suzuki coupling reaction is water, thus It is beneficial to protect the environment; in addition, palladium exists in the form of nanoparticles in the cross-linked polyvinyl alcohol supported palladium nanocatalyst, so that it can be uniformly dispersed, thereby enhancing the catalytic performance; moreover, the carrier of loaded palladium is cross-linked polyethylene Alcohol, the polymer forming the cross-linked polyvinyl alcohol has strong hydrophilicity, so it is more suitable for reacting in aqueous solution, forms a hydrogel in water, and has a good effect of binding palladium nanometers, thereby extending the cross-linked polyvinyl alcohol Service life of supported palladium nanocatalysts.
Owner:SHAOXING UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products