59485results about How to "Reduce workload" patented technology

A fast authentication and access control method of authenticating a network access device to a communications network having an access point communicating with a remote authentication (home AAA) server for the network access device. The method includes the step of receiving an access request having an authentication credential from the network access device at the access point. The authentication credential includes a security certificate having a public key for the network access device and an expiration time. The security certificate is signed with a private key for the remote authentication server. The access point locally validates the authentication credential by accessing the public key of the remote authentication server from a local database, and checking the signature and expiration time of the security certificate. If the authentication credential is validated at the access point, the access point grants the network access device conditional access to the network by sending an access granted message to the network access device. The access granted message includes a session key encrypted with a public key for the network access device. The session key is stored in a database associated with the access point. The access point contacts the remote authentication server to check a revocation status of the security certificate for the network access device. If the access point receives a message from the remote authentication server that the authentication credential for the network access device has been revoked, it suspends network access for the network access device.

Mechanisms and methods for pushing data to a plurality of devices of a plurality of organizations are provided. Queries are handled in bulk for a group of users of an organization or the entire organization, and limited results are sent to a middle tier server between the database system and the user devices. These mechanisms and methods for pushing data to a plurality of devices enable an efficient and transparent transfer of data to user devices. This efficient and transparent transfer of data can enable mobile devices of many organizations to seamlessly have the data that is required to perform business.

The event-driven queuing system and method (“EDQS”) comprises at least one each of a client, supervisor, and worker, together with network communications between each client and supervisor and between each supervisor and worker, and a component selected from the group comprising EDQS messaging architecture, EDQS job routing, EDQS event/callback architecture, EDQS job type data architecture, and the EDQS domain specific language. The EDQS typically provides arithmetical increases in dispatch time as jobs and workers are added to a farm, substantial improvements in processing jobs based on the status of one or more other jobs in a process group, and substantial improvements in the use of standalone or clustered heterogeneous platforms in a farm.

The invention discloses an air traffic control system for four-dimensional (4D)-trajectory-based operation. The air traffic control system comprises a data communication module, a monitoring data fusion module, an airborne terminal module and a control terminal module, wherein the monitoring data fusion module is used for fusing the monitoring data of an air traffic control radar and automatic dependent monitoring data, and providing real-time trajectory information for the control terminal module; and the control terminal module comprises a preflight conflict-free 4D trajectory generation sub-module, an in-flight short-term 4D trajectory generation sub-module, a real-time flight conflict monitoring and alarming sub-module and a flight conflict resolution 4D trajectory optimization sub-module. The invention also discloses an air traffic control method for the system. The control terminal module processes flight plan data, generates 4D trajectories, analyzes potential traffic conflicts of air traffic conditions and provides an optimal resolution scheme. By the system and the method, flight conflicts can be effectively prevented, and the safety of air traffic can be improved.

A catalyst for synthesizing vinyl acetate from acetylene and acetic acid is prepared from activated carbon, zinc acetate and alkaline bismuth carbonate in mass ratio of 100: (27-40): 0.026 by excessive solution dipping method.

The invention discloses a five-cylinder plunger pump with an integral power end structure. According to the five-cylinder plunger pump, an integral welding structure is adopted for a crankshaft box body and a crosshead box body in a five-cylinder plunger pump power end assembly, so that the structural strength of the power end assembly is higher, the supporting stability is better, and the whole pump vibration can be reduced; the cylinder spacing is 13-14 inches, the bearing area of connecting rods, crossheads and bearing bushes is increased, a guarantee is provided for the output of the high-power of the five-cylinder plunger pump, the high-power five-cylinder plunger pump can effectively solve the problem that the shale gas fracturing well site area is narrow and the required fracturingequipment is relatively large, the use of equipment can be reduced, and the wellsite arrangement is facilitated; the 11-inches long-stroke design can better realize large-displacement operation requirements and improve the operation efficiency; and according to the multi-point supporting design of crankcase bodies, crosshead box bodies and the hydraulic end assembly, the supporting strength of thefive-cylinder plunger pump can be improved, the vibration is reduced, the high-load operation is better guaranteed, and the operation is more stable.