Abstract: A preparation method of a carbon-encapsulated alloy catalyst includes: S1, subjecting a catalyst to a heat treatment in a first reducing gas atmosphere to obtain a heat-treated catalyst, mixing the heat-treated catalyst with a carbonization compound, a ligand compound, a carbonization catalyst, and a solvent to obtain a mixture, subjecting the mixture to ultrasonic dispersion and stirring to obtain a first dispersion system, centrifuging and drying to obtain a powder; and S2, annealing the powder in a second reducing gas atmosphere to obtain an annealed powder, dispersing the annealed powder in an acid solution then heating and filtering to obtain a cake, and vacuum-drying the cake to obtain the carbon-encapsulated alloy catalyst, where the catalyst is a commercial platinum alloy catalyst or a platinum alloy catalyst prepared from a support and metal precursors.

Abstract: The invention relates to the field of fuel cells, and in particular to a method for preparing highly stable catalyst coating slurry for fuel cells. The method for preparing highly stable catalyst coating slurry for fuel cells, includes at least two mixing and dispersing steps. The first mixing and dispersing step is carried out to mix and disperse the catalyst, perfluorosulfonic acid resin and solvent to obtain a first-stage mixed dispersion, and the other mixing and dispersing steps are carried out to mix and disperse the previous-stage mixed dispersion and the newly added perfluorosulfonic acid resin, wherein at least one mixing and dispersing step has a surfactant is added for mixing and dispersing. The catalyst in the catalyst slurry prepared by the method has good dispersion stability and less sedimentation, and good performance is achieved when the catalyst slurry is applied to membrane electrodes.

Abstract: A multimedia resource transmission method includes determining, by a first device in response to that a role of the first device during a voice call is changed to a presenter, a second device from at least one terminal device participating in a same voice call as the first device. The presenter is a device configured to output multimedia during the voice call. The method further includes creating, by the first device, a direct link between the first device and the second device, transmitting, by the first device, a multimedia resource to the second device through the direct link, and transmitting, by the first device, the multimedia resource to a server, to enable the server to forward the multimedia resource to the second device.

Abstract: A device and method for a switch to operate as an intermediate node in a Time Sensitive Network (TSN) are provided. The switch transmits a frame at a time if it is the right frame to be transmitted at the time according to a configuration stored by the switch. The switch does not transmit the frame at the time if it is not the right frame to be sent at the time according to the configuration. Further, a device and method for scheduling transmission of a data packet from a talker node to a listener node are provided, including sending a configuration to each switch of a subset of switches in the network comprising information on the flow and a timing when it is to be output from the switch.

Abstract: A device and method for a switch to operate as an intermediate node in a Time Sensitive Network (TSN) are provided. The switch transmits a frame at a time if it is the right frame to be transmitted at the time according to a configuration stored by the switch. The switch does not transmit the frame at the time if it is not the right frame to be sent at the time according to the configuration. Further, a device and method for scheduling transmission of a data packet from a talker node to a listener node are provided, including sending a configuration to each switch of a subset of switches in the network comprising information on the flow and a timing when it is to be output from the switch.

Abstract: A system for tracking objects in a temporal sequence of digital images is configured to: detect potential objects in the images, the detected potential objects being indicated as nodes, identify pairs of neighboring nodes, such that for each pair the nodes of said pair potentially represent an identical object and their spatial and/or temporal relationship with each other is within a predetermined range, connect each pair of neighboring nodes with a first type edge, identify at least one supplementary pair of distant nodes whose spatial and/or temporal relationship with each other exceeds the predetermined range, connect the pair of distant nodes with a supplementary second type edge, each of the first and second type edges being assigned a cost value, and determine a track of an object in the temporal sequence of digital images based on a set of connected first type edges and at least one second type edge.

Abstract: A system for tracking objects in a temporal sequence of digital images is configured to: detect potential objects in the images, the detected potential objects being indicated as nodes, identify pairs of neighboring nodes, such that for each pair the nodes of said pair potentially represent an identical object and their spatial and/or temporal relationship with each other is within a predetermined range, connect each pair of neighboring nodes with a first type edge, identify at least one supplementary pair of distant nodes whose spatial and/or temporal relationship with each other exceeds the predetermined range, connect the pair of distant nodes with a supplementary second type edge, each of the first and second type edges being assigned a cost value, and determine a track of an object in the temporal sequence of digital images based on a set of connected first type edges and at least one second type edge.

Abstract: According to an embodiment a packet forwarding device is disclosed for forwarding data packets on a link within a communication network. The packet forwarding device is further configured to perform the following steps: measuring a load of the link; detecting if the load exceeds one of a plurality of threshold indicative for a level of congestion on the link; and sending a signal to another device in the communication network signalling the level of congestion.

Abstract: According to an embodiment a packet forwarding device is disclosed for forwarding data packets on a link within a communication network. The packet forwarding device is further configured to perform the following steps: measuring a load of the link; detecting if the load exceeds one of a plurality of threshold indicative for a level of congestion on the link; and sending a signal to another device in the communication network signalling the level of congestion.