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350 results about "Isomerisms" patented technology

Method for cross-isomerism domain identity authentication and session key negotiation based on access authorization ticket

The invention provides a method for cross-isomerism domain identity authentication and session key negotiation based on an access authorization ticket. The method mainly comprises the steps that firstly, a first-level trust relationship is established between a CA of a PKI domain and an AS of a Kerberos domain through a distributed trust model based on a public key authentication mechanism; on the basis, the authorization ticket allowing an outer-domain user to have access to resources of the domain is generated and distributed by the CA or the AS united with a TGS, and through design of a two-way cross-domain authentication and key negotiation protocol based on a symmetric key cryptosystem, a second-level trust relationship allowing the outer-domain user to have access to the resources of the domain is established. On the premise that the requirements for safety of the levels are satisfied, the calculated amount and the communication traffic of a terminal are effectively reduced, public key encryption and decryption operations of a Kerberos domain terminal can be completely avoided, and the implementation is good in the cross-isomerism domain identity authentication process of a dynamic distributed type system, session key negotiation is completed when identity authentication is conducted, and the protocol efficiency is high.
Owner:四川华创智能科技有限公司

Distributed load balancing system and distributed load balancing method based on peer to peer (P2P) technology

Provided are a distributed load balancing system and a distributed load balancing method based on the peer to peer (P2P) technology. The system is composed of a distributed processing cluster with the load balancing function. A plurality of isomorphism or isomerism processing nodes formed by processing layers and communication layers and distributed in different servers are arranged in the cluster. Each processing node can independently bear the distributed arbitral load balancing function, the authority limits and the functions are identical, and only incident processing speeds are different. When a client transmits mass data processing requests in real time to the distributed processing cluster, one processing node packages the generated middle result as the incident and transmits the incident to other processing nodes to be processed after the processing node finishes request processing. The processing nodes adopt the distributed load balancing method to ensure load balancing of incident distribution in the whole incident distribution process till the final results is generated and returned to the client. The system and the method effectively avoid load balancing with single point failure and are capable of achieving load balancing with node dynamic change in a distributed cluster system.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Composite molecular sieve-containing medium oil type hydrocracking catalyst, preparation method and application thereof

The invention relates to a composite molecular sieve-containing medium oil type hydrocracking catalyst, which comprises an active component and a binder, wherein the active component adopts amorphous SiO2-Al2O3 as a carrier, adopts a composite molecular sieve as an acid component, and adopts a group VIB metal and a group VIII metal as hydrogenation activity components, and the composite molecular sieve comprises a Y molecular sieve and a ZSM-23 molecular sieve. According to the present invention, the deep dealuminzation modified Y molecular sieve has characteristics of high crystallinity, large surface area, high silica-alumina ratio, low cell constant, rich secondary pore, low acid center density, high moderate-intensity acid center ratio, and the like; the modified ZSM-23 molecular sieve has characteristics of smooth pore channel, less acid center and outstanding isomerism performance, wherein a light naphtha component is isomerized so as to increase an octane number of naphtha; the composite molecular sieve compounded from the Y molecular sieve and the ZSM-23 molecular sieve is adopted as the acid cracking component so as to provide advantages of the Y molecular sieve and the ZSM-23 molecular sieve, and compounding is performed according to the ratio of the present invention, such that the best catalysis effect can be obtained, and the obtained catalyst is suitable for the medium oil type hydrocracking catalyst; and the catalyst prepared from the composite molecular sieve has characteristics of excellent medium oil selectivity, good activity and good stability.
Owner:CHINA NAT OFFSHORE OIL CORP +3

Multispectral light-field imaging method

ActiveCN106840398AImplementing Dynamic Joint AcquisitionCompensating for the lack of high-resolution spectral informationSpectrum investigationCamera lensCamera auto-calibration
The invention discloses a multispectral light-field imaging method. The adopted hardware comprises a wideband filter array, an isomerism camera array, a control panel array and an information joint processing device, wherein the wideband filter array, the isomerism camera array, the control panel array and the information joint processing device are arranged in sequence in the light path direction. The imaging method comprises the steps of placing wideband filters with different wavelengths among each camera lens and sensor of the isomerism camera array so that each camera in the isomerism camera array can receive spectral information with a fixed waveband ; using the information joint processing device to conduct stereo matching based on a convolutional neural network on multipath information obtained by the camera array to obtain angular information of incident ray and obtain optical field information within a full field range; conducting camera calibration and view field aligning on distribution positions of cameras, and obtaining multi-waveband spectral information of which the number is three times the number of cameras under any camera perspective in the camera array through spectral demultiplexing. According to the multispectral light-field imaging method, multispectral optical field information of each pixel with the full field range can be obtained simultaneously, and thus dynamic and united obtaining of optical field and spectral information is achieved.
Owner:南京智谱科技有限公司

Two-stage isomerism clustering underwater wireless sensor network and routing method thereof

The invention discloses a two-stage isomerism clustering underwater wireless sensor network and a routing method of the underwater wireless sensor network. The two-stage isomerism clustering underwater wireless sensor network comprises upper-layer sensor nodes, lower-layer sensor nodes, an offshore sink node and a base station on land. All the sensor nodes in a monitoring region of the underwater wireless sensor network form a two-stage isomerism clustering structure. The lower-layer sensor nodes form first-stage clusters and first-stage cluster head nodes. The upper-layer sensor nodes form second-stage clusters and a dynamic cluster head chain. Second-stage cluster head nodes transmit data to the offshore sink node through the dynamic cluster head chain. The offshore sink node is in direct wireless communication with the base station on land, and then the base station transmits the data to a remote control center. Through the method, average energy consumption of the nodes can be effectively reduced, the survival time of the network can be prolonged, and the underwater wireless sensor network is suitable for monitoring an underwater application environment with numerous nodes, high in expandability, more balanced in node energy consumption and suitable for large-scale application.
Owner:HOHAI UNIV CHANGZHOU

Dynamic generation and maintenance method of heterogeneous cloud host

The invention relates to the technical field of network security, and especially relates to a dynamic generation and maintenance method of a heterogeneous cloud host. The method comprises the following steps: 1) a heterogeneous cloud host node whose isomerism is embodied by the diversified physical facilities, virtual machines and software; 2) a mirror image library management system comprising creating diversified virtual machines and software mirror images; 3) dynamic deployment of a heterogeneous virtual machines and software: when the virtual machine or the software is instantiated, generating virtual machines or software of different versions according to physical nodes and application attributes, and deploying the virtual machines or software on the physical nodes; 4) dynamic virtual machine migration mechanism: a development operation and maintenance unit performs security posture estimation on the current virtual machine and its operation environment, and performs initiative migration on the virtual machine according to a strategy; and 5) a dynamic virtual machine and software cleaning mechanism: cleaning the online virtual machines according to the security posture or periodically. By adoption of the method, the anti-attack ability of a cloud data center is improved, and higher security requirements of users and providers for cloud services and infrastructure are satisfied.
Owner:THE PLA INFORMATION ENG UNIV

Energy consumption balancing method of isomerism wireless sensor network unequal clustering

InactiveCN103281769AImprove survivalExtend the stable working cyclePower managementIsomerismsEnergy consumption
The invention relates to the research of an energy consumption balancing method of isomerism wireless sensor network unequal clustering. The energy consumption balancing method of isomerism wireless sensor network unequal clustering comprises the following steps that candidate cluster heads run for a cluster head according to the distances between the candidate cluster heads and a base station in different radiuses, and a cluster head in the next round is selected by a current cluster head in a cluster, and the cluster head uses an optimal hop count to forward data to the base station according to the distance between the cluster head and the base station. According to the energy consumption balancing method of isomerism wireless sensor network unequal clustering, an isomerism wireless sensor network node energy consumption model is used, the entirely-distributed stable unequal clustering balancing method is proposed, remaining energy of a node and the distances from the node to other nodes in a competitive radius are synthesized in the cluster head selection method, communication cost of the nodes in the cluster is obtained through calculation, the nodes run for the cluster head according to own communication cost to enable the number of the cluster heads to be stable in a stable period, node energy consumption is balanced, and the stable working period of the network is effectively prolonged.
Owner:CHONGQING UNIV

Universal wireless sensor network system and information processing method thereof

The invention discloses a universal wireless sensor network system and an information processing method thereof, belonging to the technical field of sensing networks and the Internet of things. The universal wireless sensor network system comprises one or more sensor subnetworks, an information converging network and a sensing access network, wherein the one or more sensor subnetworks consist of sensor nodes; the information converging network consists of information converging nodes; each information converging node is used for accessing one or more same or different sensor nodes so as to obtain the sensing information of the sensor nodes; the sensing access network consists of access converging nodes; and each access converging node is used for accessing one or more information converging nodes so as to obtain the information of the information converging nodes. According to the invention, the unification of networking modes is realized so as to achieve the effect of compatibility of multiple sensor networks; and the system and the method can be applied to any one or more sensor network environments, and are especially suitable for a comprehensive application context of a large-scale isomerism sensing network similar to the Internet of things.
Owner:ZTE CORP

Method, device and equipment for identifying isomerism graph and property of molecular spatial structure

The invention discloses a method and a device for identifying isomerism graph and property corresponding to a molecular space structure, and machine equipment. The method comprises the following steps: carrying out feature description containing a topological structure on a heterogeneous graph to generate feature information; through sampling the isomerism graph and the feature information, generating a feature vector, corresponding to a key node, on a topological structure contained in the isomerism graph; performing aggregation processing on the feature vectors to generate graph representation vectors corresponding to the isomerism graphs; and according to the graph representation vector, performing classification processing on the isomerism graph to obtain a classification prediction result. Therefore, the identification of the graphical representation corresponding to the heterogeneous graph, such as the molecular spatial structure, can be realized through the neural network, the analysis and processing performance related to the isomerism graph is effectively improved, the neural network is not limited to the classification and identification of network data any more, and the application scene is greatly expanded.
Owner:TENCENT TECH (SHENZHEN) CO LTD +1

Remote sensing estimation method of biological bearing capacity

ActiveCN104517037AFully Realize Ecological Carrying Capacity EvaluationRealize the evaluation of ecological carrying capacitySpecial data processing applicationsEngineeringAdministrative division
The invention relates to a remote sensing estimation method of a biological bearing capacity. The remote sensing estimation method comprises the following steps: constructing a biological bearing capacity index evaluation system; establishing corresponding index layers from three aspects including jamming intensity, a biological system state and human responding respectively; collecting basic information; constructing a vegetation coverage database; taking administrative division and a water collection unit as evaluation units respectively based on basic data, a soil utilization classification chart and vegetation coverage; and carrying out biological bearing capacity single-index estimation. Each single index is subjected to weight factor determination by using an analytic hierarchy process, and biological bearing capacity comprehensive evaluation is carried out. A quantitative remote sensing coupling concept is utilized and space isomerism is considered; a region difference of a region to be estimated is represented; the biological bearing capacity index evaluation system is constructed so that digitalization of a compound biological system is realized; the biological bearing capacity evaluation of the region to be estimated can be rapidly and comprehensively realized.
Owner:INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI

Grain bin intelligent sensor integration terminal

The invention provides a grain bin intelligent sensor integration terminal which mainly comprises a service management unit, a service unit, an information analyzing unit and a hardware driving layer unit. The service management unit is capable of receiving business data which is reported by the service unit. Business rule can be configured by a rule engine, and the business rule is used for carrying out initial processing to the business data. Data with business characteristics is formed, and control requests of all hardware equipment are issued to the service unit. The information analyzing unit is used for receiving the business data of specific services from all hardware equipment, wherein the business data of the specific services from all the hardware equipment are sent by the hardware driving layer unit. After the business data with different message formats is carried out analyzing through an isomerism integrated technology, the business data is converted to business data with the unified message protocol format. The grain bin intelligent sensor integration terminal is capable of carrying out the operation such as the unified data collection and management control to all kinds of sensors and control equipment in the grain bin and achieving autonomous gang control among the sensors and the controllable equipment.
Owner:HUADI COMP GROUP

MDC based isomerism-supporting data pooling layer, system and realizing method thereof

The invention discloses an MDC (Module Data Center) based isomerism-supporting data pooling layer, a system and a realizing method thereof. The MDC based isomerism-supporting data pooling layer realizing method comprises the steps of firstly receiving an isomerism monitoring data information through a southbound interface; parsing an protocol adopted by monitored data transmission and a number arrangement mode adopted by an ID through a protocol parsing layer and an equipment ID rule, and sending monitoring information, including signal information, alarm information, control information and configuration information, to a complex event processing module; and packaging all the monitoring information uniformly by the complex event processing module, and sending the packaged monitoring information to an MDC management platform through a northbound interface. Compared with the prior art, the MDC based isomerism-supporting data pooling layer, the system and the realizing method provide a standard data model to enable the signal point locations, alarm formats and names reported by different manufacturers to be executed according to a same standard, build a standard data transmission mode, set up a standard protocol for system docking, add resource docking between users and the manufacturers, can monitor an isomeric object, and are strong in practicability.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD

Ground test system and method targeting to space application isomerism IMU initial alignment

The invention provides a ground test system and a ground test method targeting to space application isomerism IMU initial alignment. A plurality of sets of isomerism IMUs with different systems are simultaneously mounted on a three-axis rotary table; the rotary table is driven to realize a maneuvering process of an aircraft where the IMUs are mounted; and an inertia posture of the aircraft is calculated by a remote terminal through using postures, relative to an east, north and up geographic coordinate system, of a rotary table frame angle and the rotary table, and a posture, relative to an instant solidification inertia system, of the east, north and up geographic coordinate system. After a GNC controller is subjected to time calibration, the inertia posture is sent to the GNC controller in real time. Output data of the IMUs are collected by the GNC data; meanwhile, inertia posture data are obtained; and an on-planet alignment procedure is operated to carry out alignment calculation so that the data obtained by the GNC controller are consistent with an actual on-orbit flying process. An external optical collimation calibration subsystem is used for obtaining an alignment parameter real value and an alignment result of an on-planet system is estimated. The reality of simulating an alignment process is high, ground tests of a plurality of alignment methods can be adapted, and the project is easy to realize.
Owner:BEIJING INST OF CONTROL ENG
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