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54results about How to "Simple and flexible implementation" patented technology

Method for establishment of a service tunnel in a WLAN

Disclosed herein is a method for the establishment of a service tunnel in a wireless local area network (WLAN). The method includes a service authentication authorization unit making authentication and authorization to a WLAN user terminal currently requesting a service, and judging whether the authentication and authorization is successful. If successful, the method includes generating service authorization information that includes a shared communication key used for communication between the WLAN user terminal and a destination packet data gateway (PDG), and otherwise ending the procedure. The method further includes the service authentication authorization unit sending to the destination PDG the generated service authorization information including the shared communication key, and the destination PDG, according to the shared communication key, establishing a trust relation with the WLAN user terminal through negotiation with the WLAN user terminal. If the establishment of the trust relation is successful, the destination PDG allocates tunnel resources for the WLAN user terminal, negotiates parameters and then establishes a tunnel with the WLAN user terminal, and otherwise, ends the procedure. As a result, a secured service data tunnel may be established between the user terminal and the PDG.
Owner:HUAWEI TECH CO LTD

Enhanced coagulation-gas stripping-membrane integration method and device for lightening membrane pollution

The invention discloses an enhanced coagulation-gas stripping-membrane integration method for lightening membrane pollution. In the method, a coagulating agent and a coagulant aid are added into raw water and undergo enhanced coagulation reaction by applying hydraulic condition, and airflow circulation and lift treatment is performed while an external pressure hollow fiber membrane component is used for filtration. The invention also discloses an integration device designed according to the method. Through the technical measures of throwing the coagulating agent and the coagulant aid into the raw water, positioning gas stripping type aeration treatment under the filtering of the external pressure hollow fiber membrane component and the like, the method improves the pollutant removal rate and the water treatment effect, greatly lightens the membrane pollution, saves energy consumption of membrane component operation, prolongs the operating cycle of the membrane component, shortens the cleaning time, reduces the back washing cost, has small occupied area, low investment cost and simple and flexible implementation, is applicable to water treatment for large cities, and is also applicable to vast cities and towns and rural regions with imperfect water treatment process and small treatment scale.
Owner:SICHUAN UNIV

Method for establishment of a service tunnel in a WLAN

Disclosed herein is a method for the establishment of a service tunnel in a wireless local area network (WLAN). The method includes a service authentication authorization unit making authentication and authorization to a WLAN user terminal currently requesting a service, and judging whether the authentication and authorization is successful. If successful, the method includes generating service authorization information that includes a shared communication key used for communication between the WLAN user terminal and a destination packet data gateway (PDG), and otherwise ending the procedure. The method further includes the service authentication authorization unit sending to the destination PDG the generated service authorization information including the shared communication key, and the destination PDG, according to the shared communication key, establishing a trust relation with the WLAN user terminal through negotiation with the WLAN user terminal. If the establishment of the trust relation is successful, the destination PDG allocates tunnel resources for the WLAN user terminal, negotiates parameters and then establishes a tunnel with the WLAN user terminal, and otherwise, ends the procedure. As a result, a secured service data tunnel may be established between the user terminal and the PDG.
Owner:HUAWEI TECH CO LTD

Method for processing ultra-pure ferrite stainless steel by using ladle refining furnace to control carbon and nitrogen content

The invention discloses a carbon and nitrogen content control method of processing super ferrite stainless steel with ladle refining furnace, comprising the procedures that, 1) during smelting ferrite stainless steel, arc furnace, induction furnace or converter are used for tapping, and argon oxygen decarburization furnace or vacuum oxygen decarburization furnace is used to reach the demand of steel liquid components of super ferrite stainless steel. 2) Ladle refinement: during power-on process, by blowing the mixture of coke oven gas and argon gas through the central hole of graphite electrodes, hydrogen containing plasma arc is formed at the lower end of graphite electrodes to achieve decarburization and denitrogen of liquid steel and guarantee the cleanness of liquid steel; among which the mixture proportion of coke oven gas and argon gas is between 95:5 and 5:95, with the pressure range between 0.02 and 10 MPa, the flow range of mixture gases between 0.01 and 50 Nm3/h; 3) During power-off process: gases blowing to the central hole of graphite electrodes are suspended; ladles are hung away from ladle refining furnace after components and temperature of steel liquid meet the requirement, and sent to the next procedure for casting.
Owner:BAOSHAN IRON & STEEL CO LTD +1

Electric rotating table under vacuum low-temperature environment

The invention discloses an electric rotating table under vacuum low-temperature environment. The electric rotating table mainly comprises a rotating table bracket, a rotating table moving disk, a rotating table fixed disk, a main shaft, a motor, a flexible shaft, a bevel gear transmission mechanism, a conducting ring, a thermal protection device, a wall penetrating sealing unit and a control system. According to the electric rotating table disclosed by the invention, a driving motor is placed outside a space environment simulation chamber, the power is transmitted into the simulation chamber by a metal bellows in the wall penetrating sealing unit, and the flexible shaft is used for being coupled with the main shaft of the rotating table in the simulation chamber, so that the continuous rotation of the rotating table is realized, and an electricity supply channel and a testing signal transmission channel are provided for a tested product placed on the rotating table through the conducting ring; and the control system is connected with the conducting ring through a wall penetrating connector, and is used for supplying electricity to the product and acquiring a testing signal and a signal of a rotating table sensor, and adjusting the output power of the motor to control the rotating speed and the positioning angle of the rotating table.
Owner:BEIJING INST OF SPACECRAFT ENVIRONMENT ENG

High-adaptability composite material pipe joint

The invention relates to a high-adaptability composite material pipe joint. At least one end of a composite material pipe is a conical connecting section and is of the shape of an outer cone or an inner cone. A plurality of slits are circumferentially and evenly arranged. At the same time, a metallic taper pipe and a metallic tightening taper sleeve are arranged. The three sections of the metallic taper pipe are respectively a taper part, a male thread part and a connecting section part. The bottom diameter of a male thread is slightly larger than the outer diameter of the composite material pipe; the diameter of the small end of the taper part is equal to the inner diameter of the composite material pipe; the length of the taper part is equal to the depth of the slits of the composite material pipe; the small end of the metallic tightening taper sleeve is provided with inner taper, which is consistent with the total taper of the metallic taper pipe and the composite material pipe; the diameter of the small end of the metallic tightening taper sleeve is equal to the outer diameter of the composite material pipe; and the large end of the metallic tightening taper sleeve is provided with a female thread, which is matched with the male thread of the metallic taper pipe. The high-adaptability composite material pipe joint has good universality, economy and adaptability, the process is simple and reliable, the implementation is simple and flexible, joint schemes can be designed aiming at composite material pipes which are made of different materials, have different wall thicknesses and are used under different stress conditions, and the practicability and the applicability are high.
Owner:NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE

Method for implementing continuous carrier frequency configuration for CDMA (Code Division Multiple Address) digital optical fiber repeater

ActiveCN101841372ASimple and flexible implementationCarrier frequency processing capability can be changed in real timeElectromagnetic repeatersFrequency mixerDigital filter
The invention relates to a method for implementing continuous carrier frequency configuration for a CDMA digital optical fiber repeater, which comprises the following steps of: judging the currently used frequency point number, the number S of frequency points and n continuous carrier frequency manners according to the carrier frequency configuration of the superior network management by the CDMAdigital optical fiber repeater, wherein n is a natural number arranging from 1 to 7, judging and recording the number of the carrier frequencies used and the distribution of the continuous carrier frequencies by sequencing the frequency number and detecting the difference, calculating the configuration parameters of a digital mixer and the configuration bandwidth of a digital filter, treating thecontinuous carrier frequencies as one carrier frequency, using one mixing configuration parameter; reconstructing the used digital filter according to the configuration parameters of the digital mixer and the configuration bandwidth of the used digital filter to implement variable signal processing bandwidth and process different carrier frequency configuration manners; and accumulating data for different signal bandwidth processing channels to process a signal carrier frequency and various different continuous carrier frequencies. The invention is flexible and simple and has strong adaptability.
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD

Security protection system and method for application program

The invention discloses a security protection system and method for an application program. The security protection system comprises: an extraction module which is suitable for extracting a binary file from an application installation package, a check value generation module which is suitable for generating a check value according to the information corresponding to the specific position in the binary file, a specific data determining module which is suitable for determining various specific types of data contained in the non-code segment, an encryption module which is suitable for performingencryption processing on the check value and the specific type of data, a comparison module which is suitable for obtaining information corresponding to a specific position in the current applicationprogram when the application program runs and comparing the information corresponding to the specific position in the current application program with the verification value, and an attack determination module which is suitable for determining whether the application program is attacked or not according to the comparison result. According to the scheme, static analysis and dynamic analysis of theapplication program can be prevented, so that security protection of the application program is realized; and the implementation process is simple and flexible, and batch maintenance is easy, and themaintenance cost is low.
Owner:JIANGSU PAYEGIS INFORMATION SECURITY TECH CO LTD

Application attack detection method and device

ActiveCN110135152APrevent dynamic attacksIncrease the reverse difficultyPlatform integrity maintainanceProgram/content distribution protectionComputer engineering
The invention discloses an application attack detection method and device, and is characterized in that the method comprises the steps: extracting a binary file from an application installation package; generating a check value according to the information corresponding to the specific position in the binary file; when the application program runs, obtaining information corresponding to a specificposition in the current application program, and comparing the information corresponding to the specific position in the current application program with the check value; and determining whether theapplication program is attacked or not according to a comparison result. According to the scheme, the information corresponding to the specific position in the binary file is used as the check value;the application program attack is monitored according to the check value, so that whether the application program is attacked or not can be quickly and accurately determined, the application program is prevented from being dynamically attacked, the reverse difficulty of the application program is greatly improved, the security of the application program is ensured, and code expansion of the application program is not easily caused; moreover, the implementation process is simple and flexible, batch maintenance is easy, and the maintenance cost is low.
Owner:JIANGSU PAYEGIS INFORMATION SECURITY TECH CO LTD +1
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