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73results about How to "Not easy to cause leakage" patented technology

Operation right authentication method and device

The invention relates to an operation right authentication method and an operation right authentication device and belongs to the technical field of networks. The method comprises the steps that a first terminal obtains a characteristic code generated by a second terminal; the identity of the second terminal is obtained according to the characteristic code; the account information of the first terminal and information to be authenticated are obtained; a right authentication request is transmitted to a server to enable the server to perform authentication, and when the authentication is passed, a right corresponding to the right authentication request is provided for the second terminal. Since the operation right authentication is performed to the second terminal according to the account information of the first terminal and the information to be authenticated and the information input process of the second terminal is transferred to the first terminal, the information input process is enabled to become simpler and more convenient, the operation right authentication process is simplified, the information input time is saved and the authentication efficiency is improved; since a display screen of the second terminal is obviously smaller than a display screen of the first terminal, the information is not apt to disclose and the security is improved.
Owner:XIAOMI INC

Information verifying method and device

The invention relates to an information verifying method and an information verifying device, and belongs to the technical field of networks. The method comprises the steps that a first terminal receives specified operation instructions; according to the specified operation instructions, graphic codes are generated so that a second terminal displays an information input interface through scanning the graphic codes, in addition, information, input by users, to be checked is obtained, an verification request is sent to a server, and the server verifies whether a first terminal is allowed to execute the specified operation or not. The information verifying method and the information verifying device have the advantages that the input process of the information to be checked after the first terminal receives the specified operation instructions is transferred onto the second terminal, so the process for inputting the information to be checked is simpler and more convenient, the information verification process is simplified, the time for inputting the information to be checked is reduced, the information verification efficiency is improved, and in addition, a display screen of the second terminal is obviously smaller than that of the first terminal, the information leakage cannot be easily caused, and the safety is improved.
Owner:XIAOMI INC

Semiconductor material polishing method and polishing solution for polishing gallium antimonide substrate

In order to overcome the defects that when a soft semiconductor material such as gallium antimonide is polished by adopting a CMP (Chemical Mechanical Polishing) process in the prior art, metal ions and the like contained in a polishing abrasive and a polishing solution are easily attached to the surface of a polished object, scratches are generated on the surface of the polished object, and the service life of the polishing solution is short, the invention provides a semiconductor material polishing method and a polishing solution for polishing a gallium antimonide substrate. According to the method, a semiconductor material with the Mohs hardness of 1.5-6 is polished. A first step is rough polishing, and a polishing solution containing a hard abrasive is adopted to conduct mechanical polishing on a semiconductor material substrate slice. A second step is medium polishing, and a medium polishing solution comprises a soft polishing abrasive, a weak acid oxidizing agent, organic acid, a hydrophilic nonionic surfactant and deionized water. A third step is fine polishing, and a fine polishing solution comprises a weak acid oxidizing agent, organic acid and deionized water. When the polishing method is adopted for polishing a semiconductor material, corrosion pits and scratches are eliminated, pits are reduced, and a material with good surface roughness is obtained.
Owner:SUZHOU KUNYUAN OPTOELECTRONICS CO LTD

Automatic hydraulic unhooking device

The invention discloses an automatic hydraulic unhooking device. The automatic hydraulic unhooking device comprises an oil cylinder, an automatic hooking device and a hydraulic system for controlling the pressure of a rod cavity of the oil cylinder, wherein the automatic hooking device is fixed at the end part of a piston rod of the oil cylinder; the automatic hydraulic unhooking device is also provided with mechanical locks, and the mechanical locks are mounted on an outer cylinder wall of the oil cylinder in pairs; an unlocking rope is arranged on the mechanical locks; an unhooking rope is mounted between the automatic hooking device and the mechanical locks; one end of the unhooking rope is connected with the automatic hooking device, and the other end of the unhooking rope is connected with the mechanical locks. According to the automatic hydraulic unhooking device disclosed by the invention, a hammer is lifted by the mechanical locks, and the hydraulic bearing of a high-speed oil cylinder is replaced by the rigid bearing of a mechanical-lock structure, so that the problem that when the heavy load of the high-speed oil cylinder is lifted, a piston rod slides off is solved; the working pressure in the high-speed oil cylinder is low, and the sealing, manufacturing and maintenance cost is low; the piston rod of the high-speed oil cylinder is unlocked by the mechanical locks through the traction of the unlocking rope, so that the automatic hydraulic unhooking device is simple and convenient to operate, high in reliability, and suitable for impact machinery to perform unhooking operation.
Owner:CHANGSHA JIABAI PRECISION MACHINERY CO LTD

Unmanned hotel management authentication method and device

The invention relates to the technical field of hotel management, in particular to an unmanned hotel management authentication method and device. The method comprises the following steps of acquiringa face image on the surface of a user certificate and a face image in a certificate chip, matching the two face images, and verifying the authenticity of the user certificate; acquiring a depth face image of a user at the scene and matching the depth face image with the two face images on the certificate, so that identity authentication of the user is realized; and after the authentication is successful, providing a corresponding service for the user according to an authentication type, wherein the user is a hotel guest or a hotel staff, and the authentication type is check-in authentication,room entry authentication, public place entry authentication or check-out authentication. According to the authentication method and device, the face image on the surface of the certificate, the faceimage in the certificate chip and the face image acquired at the scene are combined, so that the authenticity of the certificate is identified, the identity authentication of the user is effectively realized in a cross-verification mode, information leakage is not easily caused, a relatively high safety coefficient is achieved, and the safety and reliability of unmanned hotel management are remarkably improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Self-sealing eccentric half-ball valve

The invention discloses a self-sealing eccentric half-ball valve which comprises a valve body, wherein a liquid inlet cavity is arranged in the valve body; one end of the valve body is provided with a water inlet communicated with the liquid inlet cavity, and the other end is provided with a water outlet communicated with the liquid inlet cavity; the top of the valve body is connected with a valve cap; the valve cap is connected with a main valve shaft; the bottom of the valve body is provided with an auxiliary valve shaft; a half ball valve plate connected to the main valve shaft and auxiliary valve shaft is arranged in the liquid inlet cavity; the surface of the half-ball valve plate is coated with an elastic sealing layer; the elastic sealing layer of the sealing surface of the half-ball valve plate and the inner port position of the water inlet form a contact fit to form an axial sealing pair capable of implementing axial sealing; and the elastic sealing layer on the sealing surface of the half-ball valve plate and the wall of the water inlet form a contact fit to form a radial sealing pair with radial self-sealing effect. The self-sealing eccentric half-ball valve has the dual effects of axial sealing and radial sealing, can not easily cause seepage or leakage, and has the advantages of small opening torque and longer service life.
Owner:AQUA CASTING INC

Sewage treatment and purification equipment

The invention relates to the field of sewage treatment equipment, in particular to sewage treatment purification equipment which comprises a purification equipment body, liquid inlet assemblies are arranged on the left and right sides of the top end of the purification equipment body, and the left and right sides of the upper end of the purification equipment body communicate with water inlet pipes; a filtering assembly is arranged in the purification equipment body, and supporting assemblies are fixedly mounted on the left and right sides of the lower end of the purification equipment body; movement of the first sieve plate and the second sieve plate of the sewage treatment and purification equipment is powered by high-pressure water pressure provided by the liquid inlet assembly, so thatother driving mechanisms do not need to be arranged on the outer side of the purification equipment body, and the purification equipment is not liable to cause leakage in the sewage treatment process; in addition, after sewage supply is stopped, the first sieve plate and the second sieve plate automatically recover to the initial state under the elastic action generated by deformation of the first compression spring, and solid impurities on the surfaces of the first sieve plate and the second sieve plate are shaken to be discharged.
Owner:郝运康

Dust removal, desulfurization and white smoke removal integrated method

The invention provides a dust removal, desulfurization and white smoke removal integrated method. An adopted device comprises two Roots blowers, a desulfurizing agent bin, a primary purification unit,a secondary purification unit, an induced draft fan, a chimney and a compressed air unit, wherein one Roots blower blows a desulfurizing agent in the desulfurizing agent bin into the primary purification unit; coke oven coal charging flue gas reacts with the desulfurizing agent in the primary purification unit to complete desulfurization, enters the secondary purification unit after being cooledand whitened, and is discharged into the chimney through the induced draft fan after secondary desulfurization and dust removal are completed in the secondary purification unit. According to the device, cooling and desulfurization are integrated into the primary purification unit, secondary desulfurization and dust removal are integrated into the secondary purification unit, the dust removal, desulfurization and white smoke removal functions of coke oven coal charging flue gas can be achieved at the same time, the number of equipment is reduced, the occupied area is reduced, and the purchase,use and maintenance cost is greatly reduced; in addition, the device adopts a set of pipelines and is simple in arrangement, so that full-automatic control can be realized, and flue gas leakage is noteasy to cause.
Owner:山西清凯环保工程有限公司

Closed type water-saving writing brush cleaning device

InactiveCN107139603ARealize multiple filteringRealize multiple useNib removersWater savingFiltration
The invention discloses a closed type water-saving writing brush cleaning device which comprises an upper cover body, wherein an upper rubber sleeve is arranged below the upper cover body; a connecting barrel is arranged below the upper rubber sleeve; a lower rubber sleeve is arranged below the connecting barrel; a lower cover body is arranged below the lower rubber sleeve; a lower sealing cover is arranged below the lower cover body; an upper sealing cover is arranged above the upper cover body; an upper sponge body is arranged in the upper rubber sleeve; the upper sponge body is clung to the wall surface of the upper rubber sleeve; a lower sponge body is arranged in the lower rubber sleeve; and the lower sponge body is clung to the wall surface of the lower rubber sleeve. According to the closed type water-saving writing brush cleaning device, the writing brush can be cleaned and washed in a frictional manner, an upper filter screen and a lower filter screen are arranged in the barrel body and the cleaning device is arranged in an inverted manner, so that the filtered water is subjected to multiple times of filtration, the repeated usage of the filtered water is realized, and water resources are saved; besides, the closed type water-saving writing brush cleaning device is simple in structure, small and exquisite, and convenient to carry and clean.
Owner:周泽奇
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