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87results about How to "Improve singleness" patented technology

Optimal protection policy analysis system and method based on improved ant colony algorithm

The invention provides an optimal protection policy analysis system and method based on an improved ant colony algorithm. The system comprises a network risk assessment subsystem, an attack path prediction subsystem and a security policy management subsystem. The method comprises the following steps: 1) importing a Bayesian probabilistic model to describe the complex relationship between multiple steps of atomic attacks, and constructing an attack diagram by using the Bayesian belief network to evaluate a network security risk; 2) simulating a decision making process of an attacker in combination with the quantitative indexes of the protection cost and the gain, and predicting a possible attack path; and 3) using the improved ant colony algorithm capable of calculating the quasi-optimal solution within a polynomial time to solve the security policy selection problem on the attack path. By adoption of the optimal protection policy analysis system and method, a risk solution can be provided for a network security administrator in time, the attack path prediction and protection strategy selection problems in network security protection are solved, and the security of the whole network under the condition of limited protection resources is effectively protected.
Owner:NORTHWEST UNIV

TBM tunneling parameter prediction method based on multi-target learning

ActiveCN110110419AEffectively characterize fluctuationsPredict changing trends in real timeSustainable transportationDesign optimisation/simulationTime domainLearning based
The invention provides a TBM tunneling parameter prediction method based on multi-target learning, which can solve the problems of subjectivity of artificial decision and singleness of decision rulesin a traditional control strategy. The method comprises: acquiring TBM tunneling parameters through an intelligent data acquisition system; performing noise reduction and enhancement processing on theTBM tunneling parameters to obtain data of each cyclic in a rising section anda stable section; extracting time domain characteristics of the rising section and the stable section in each cycle, andconstructing an evaluation index reflecting the health state of the TBM; utilizing an artificial intelligence algorithm to effectively represent a nonlinear mapping relation between the rising sectionTBM characteristic index and the stable section multi-target variable, and establishing a multi-target learning-based rock machine action model; carrying out self-adaptive adjustment on parameters ofthe rock machine action model through a nonlinear optimization method; according to the multi-target parameter information estimated by the rock machine action model, enabling the TBM driver to optimize the TBM control strategy by integrating the geological conditions of the surrounding rock and the particle distribution of the slag pieces. According to the method, TBM tunneling parameters can beestimated online, and meanwhile normal operation of the TBM is not interfered.
Owner:CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD

RFID (radiofrequency identification) tag applied to intensive distribution scenarios and mutual impedance design method thereof

InactiveCN104241829AOptimizing TransimpedanceOptimizing Conjugate MatchingRadiating elements structural formsAntennas earthing switches associationDielectric substrateAcoustics
The invention relates to an RFID (radiofrequency identification) tag applied to intensive distribution scenarios and a mutual impedance design method thereof. The RFID tag designed comprises a dielectric substrate, a metal microstrip antenna and a chip; the metal microstrip antenna and the chip are arranged on the dielectric substrate. The metal microstrip antenna is composed of a pair of radiation patches, a pair of bent radiation arms and a resonant matching ring. The radiation patches are in a rectangular shape. The bent radiation arms are in an M shape; 10 folds are made on each side of the bent radiation arms. The resonant matching ring is U shaped; two vertical arms of the resonant matching ring are connected with a feeder; the feeder is welded to an anode and a cathode of the chip and connected in a single-port manner. By the use of the mutual impedance design method to the RFID tags, mutual coupling of RFID tags is decreased. The RFID tag has a maximum transmission coefficient 0.8, a maximum gain 2.28dbi and a longest reading distance 10m under operating frequencies; the RFID tag has a wider range of coverage. Under the frequency 920MHz, the RFID tags spaced by 2mm generate mutual impedance less than 50ohm; a good capacity to recognize multiple RFID tags is provided.
Owner:SHANGHAI UNIV

Net distributed type ecology restoration method specially used for pesticide organic matter polluted soil

The invention discloses a net distributed type ecology restoration method specially used for pesticide organic matter polluted soil. The net distributed type ecology restoration method specially used for pesticide organic matter polluted soil is capable of improving restoration single performance in conventional microbe ecological restoration. According to the method, a plurality of microbial agents are taken as raw materials, the synergetic mutualism co-metabolism of the microbial agents is capable of increasing the efficiency of microbial agents in restoration of soil ecological system and degradation of pesticide organic pollutants, and the effect on restoration of soil pollution caused by pesticide organic matters is especially obvious; at the same time, an adopted nutrient and active humic acid are capable of improving soil, improving beneficial microbe living environment, and promoting beneficial microbe growing and breeding, so that the effect of the microbial agents is improved, and soil restoration time is shortened; a special net distribution device is adopted, so that the microbial agents can be dispersed in every spots in soil to be restored, and the penetration effect and restoration effect of the microbial agents in soil are promoted; and in addition, resistant plants such as Eichhornia crassipes is planted in the pesticide organic matter polluted soil, so that the improvement effect on pesticide organic matter pollution is better.
Owner:深圳市朗程师地域规划设计有限公司

Chlamydomonas reinhardtii Se1K expression vector as well as construction method and expression method thereof

The invention provides a construction method of a chlamydomonas reinhardtii Se1K expression vector. The construction method comprises the following steps: amplifying an ORF gene segment of human Se1K to obtain an ORF gene amplification product; amplifying an SECIS gene segment of chlamydomonas reinhardtii Se1W1 to obtain an SECIS gene amplification product; recombining the ORF gene amplification product with the SECIS gene amplification product to obtain a recombinant Se1K gene; and introducing the recombinant Se1K gene into a plasmid vector which can be expressed in the chlamydomonas reinhardtii to form a recombinant plasmid product. According to the chlamydomonas reinhardtii Se1K expression vector constructed by the method, a novel plasmid vector capable of expressing an exogenous target selenoprotein K in the chlamydomonas reinhardtii is constructed; compared with the existing in-vitro expression vectors such as a prokaryotic expression system, and a method, the product is generated by a similar expression mechanism, so that the product has good monotonicity and directionality; the efficiency is greatly improved; the chlamydomonas reinhardtii can be adopted as a reactor for producing selenoprotein during expression; and the construction method is portable and efficient, and can completely meet the bases of research on structure functions of the selenoprotein and development of selenoprotein anti-cancer drugs.
Owner:SHENZHEN CENT FOR DISEASE CONTROL & PREVENTION

System and method for enhancing application installation operation safety of Android system

The invention discloses a system and a method for enhancing the application installation operation safety of an Android system, and relates to the technical field of Android system application installation certificate authentication and application permission authentication management. A checking information body containing an application certificate and an application permission file is added to an original Android application structure per se; during application installation or operation, whether the application certificate and the application permission file are qualified or not are respectively checked; after the application certificate and the application permission file are qualified by checking, an Android original system installation or operation checking flow process is performed; a root certificate of a preset security chip is used for checking the application certificate; the application certificate is enabled not to be tampered; the application permission controllability is ensured through the duplex verification on permission; in addition, a great amount of flow process tampering is not performed on an Android original permission and application installation signature checking system; the system completeness is ensured; meanwhile, the system security is enhanced; the system and the method are applicable to various kinds of special intelligent equipment using an Android system for finance, police use and military use.
Owner:AITIWEIER ELECTRONICS TECH BEIJING

Multi-channel fluorescence immunoassay quantitative analyzer

The invention discloses a multi-channel fluorescence immunoassay quantitative analyzer. The multi-channel fluorescence immunoassay quantitative analyzer comprises a body, wherein a transmission assembly is arranged at one end of the body; a user interface, a mini-type printer and an infrared barcode scanner are arranged at the other end of the body; the infrared barcode scanner is located under the mini-type printer; the transmission assembly is provided with a main board, a light path assembly and an item automatic identification assembly in sequence from top to bottom; the bottom of the transmission assembly is connected with a bracket; the top end of the light path assembly is connected with a laser diode and a fluorescence reader respectively; a sample feeding disc is arranged above the bracket. The multi-channel fluorescence immunoassay quantitative analyzer adopts a multi-channel detection technology to realize simultaneous detection of a plurality of items of a single sample so that the detection efficiency is improved; a laser light source adopts the laser diode and has good singleness and high light source intensity, so that the high sensitivity and consistency are guaranteed; an automatic identification technology is used for realizing a measurement process and does not need manual interference so that the intelligent degree is high.
Owner:NANJING PERLONG MEDICAL EQUIP

Aluminum three-dimensional electroformed name plate and processing method thereof

InactiveCN102189880AOvercome defects in thickness, color, molding, etc.Improve singlenessDecorative surface effectsOrnamental structuresWork in processMetallic Nickel
The invention discloses an aluminum three-dimensional electroformed name plate which comprises an aluminum substrate, wherein the surface of the aluminum substrate is provided with a surface processing layer needing to generate an electroformed effect pattern through laser etching, and the surface processing layer is provided with an electroplating layer with the electroformed effect pattern. A processing method of the aluminum three-dimensional electroformed name plate comprises the following steps: (1) preparing an original substrate aluminum material; (2) making the surface processing layer; and (3) performing electroforming treatment: performing electroforming treatment on the surface of the semi-finished product of an aluminum piece after laser etching to form an electroformed layer on the surface of the aluminum piece on the surface processing layer and to obtain the aluminum three-dimensional electroformed name plate. According to the invention, the nickel single substrate of the original electroformed name plate is replaced by the existing aluminum material, the shortcomings in thickness, color, formation and the like of the electroformed name plate product can be overcome at the same time, and the expected effect in weight and quality is achieved; and moreover, the electroforming effect and the aluminum material surface effect are perfectly combined, the special metal luster effect of the required part on the aluminum material surface can be achieved, and the single color effect of the surface of the original electroformed name plate product can be improved.
Owner:JINLI TRADE MARK KUSN

Load frequency control device and method suitable for information uncertainty system

The invention relates to a load frequency control device suitable for an information uncertainty system, which comprises an information acquisition module, an optimization decision module and an adaptive control module. The information acquisition module is used for accessing a state signal of a communication system at the moment N into the device through sensor sampling measurement, and integrating and uploading a sampling signal to an agent node; the optimization decision module receives the information output by the information acquisition module, performs synchronous sampling conversion according to the occurrence probability measure of the random event of the communication system, analyzes the information uncertainty degree of the system through the established model of the information entropy H, and inputs the analysis result into the adaptive control module; the adaptive control module inputs a data analysis result into the adaptive control module designed based on a fuzzy rule,aiming at the probability measure representation of each quantity influencing the uncertainty of the system information, a mathematical model of information entropy is established by integrating eachquantity of time lag, packet loss and error codes of an information system, the modeling of the uncertainty of the system information is completed. A system load frequency model is established by quantizing information uncertainty, and the frequency control considering information uncertainty is realized.
Owner:TIANJIN UNIV

Robotic flexible production workstation

The invention belongs to the technical field of industrial automation and discloses a robotic flexible production workstation, comprising a material buffer device, a multifunctional work chamber and acontrol system. The material buffer device is connected with the multifunctional work chamber through a conveyer. The material buffer device comprises a rotary workbench, a plurality of positioning fixtures and a driving device; the driving device is connected with the rotary workbench; the positioning fixtures are fixed on the rotary workbench; the multifunctional work chamber comprises an operating platform, a material processing device and a material discharge passage; the control system controls the working state of the workstation. The robotic flexible production workstation has the advantages that the monotony and specificity of a traditional workstation are improved; the automatic production requirements on multiple stations and multiple material varieties can be met by making useof robotic flexibility; the robotic flexible production workstation is widely applicable, allows rapid switching of various materials within a short time and also allows rhythm uniformity for different procedures, so that production quality and working efficiency are improved, labor intensity is reduced and working environment is improved.
Owner:江苏海德工业机器人有限公司

Weld neck flange machining technique

The invention discloses a high-neck flange processing technology, which includes the following processing steps: 8053 aluminum material is selected as the raw material, the aluminum alloy casting rod is turned and peeled, and forged to make a billet. The peeled billet is heated in an electric furnace, and then forged to obtain a forged billet. The billet is ring rolled on the ring rolling mill, the outer diameter of the semi-finished product neck and the outer diameter of the bottom reach the predetermined size, the inner diameter of the neck is smaller than the predetermined size, and the outer surface of the neck is straight, the height of the bottom and neck of the semi-finished product The height of the bottom and the neck of the blank is equal, the inner tapered surface of the neck is spun, the semi-finished product obtained after the hole expansion is installed in the spinning machine for spinning, and the roller of the spinning machine is lifted from the neck of the semi-finished product. The upper end of the neck starts to perform single-pass or multi-pass spinning on the inner surface of the neck from top to small, until the upper part of the inner surface of the semi-finished product is a bevel, and the outer diameter of the neck remains unchanged, and the inner diameter expands to a predetermined size , the height of the neck is increased to the predetermined size, and finally a high-neck flange that meets the requirements is obtained.
Owner:JIANGYIN PUYANG FLANGE

Method for measuring performance parameters of micro-nano particles

The invention discloses a method for measuring performance parameters of micro-nano particles. The method comprises the following steps: constructing a system for measuring performance parameters of micro-nano particles, wherein the system comprises a detection ware, a constant temperature control regulator, an ultrasonic module, a soundproofing module, a signal analysis and process module; the specific value of the backscatter intensity of free micro-nano particles in solid-liquid continuous phase medium for ultrasonic waves to the incident intensity of the free micro-nano particles in solid-liquid continuous phase medium for ultrasonic waves, and other parameters like the sound pressure, the particle concentration, the particle size, the medium viscosity and the medium density are utilized for calculating to obtain the characteristic mechanical parameters. According to the method for measuring performance parameters of micro-nano particles, the elastic coefficient and the surface tension of micro-nano particles can be precisely measured under the same measuring system and the same measuring environment, so that accurate experimental data is provided for study on the relation between the elastic coefficient and the surface tension, the properties of materials can be more deeply mastered, the service life of the materials is prolonged, and the quality of the materials is improved.
Owner:SOUTH CHINA NORMAL UNIVERSITY +2
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