Abstract: A method for detecting an occluded image. The method includes: after an image is captured by a camera, obtaining the image as an image to be detected; inputting the image to be detected into a trained occluded-image detection model, the occluded-image detection model is trained based on original occluded images and non-occluded images by using a trained data feature augmentation network; determining whether the image to be detected is an occluded image based on the occluded-image detection model; and outputting an image detection result.

Abstract: A reinforcement and bearing capacity calculation method for a self-stressed bridge deck link slab includes: calculating a cross-section moment of inertia of the link slab and a negative moment borne by the link slab; introducing a design self-stress according to stress distribution of the self-stressed bridge deck link slab, whether reinforced or un-reinforced; calculating a cracking moment of the plain self-stressed bridge deck link slab, comparing the cracking moment and the negative moment, proceeding to the next step, or configuring a structural reinforcement as needed; determining a design strength of reinforcement, selecting a reinforcement ratio, and calculating a resisting moment of the link slab; comparing the resisting moment and the negative moment of the link slab, design conditions are satisfied, or configuring the reinforcement ratio and carrying out iterative calculation to obtain a resisting moment; and analyzing stress on the reinforcement and concrete.

Abstract: A carbonized brick of recycled concrete powders and a preparation method thereof are provided, belonging to the field of concrete materials. The preparation method includes: adding composition A to a liquid storage tank; introducing composition B into the liquid storage tank to react with a solid waste solution to generate calcium bicarbonate solution; filling recycled powders into a molding die, decomposing the calcium bicarbonate solution by heat, reacting generated carbon dioxide with calcium ions leached from a C—S—H gel in the recycled powders to produce calcium carbonate, and precipitating, crystallizing and cementing in the molding die together with calcium carbonate produced by decomposing calcium bicarbonate solution, and resulting in strength of the recycled powders.

Abstract: An intelligent integrated anti-collision system and method for a pier, including: a radar sensing device disposed at the joint between the pier and a girder, image collection devices disposed around the pier, control system, hydraulic system and execution device, where the radar sensing and image collection devices transmit collected signals to the control system, which uses the hydraulic system to control the action of the execution device; the execution device is disposed at a middle part of the pier and includes a plurality of sections of steel-reinforced rubber concrete girder connected end to end through pulleys, the hydraulic system can drive the pulleys to rotate to enable the sections to be located on the same horizontal line, and an energy dissipation apparatus is disposed at the tail end of the last section to realize energy dissipation of the energy generated by impact when an object impacts the energy dissipation apparatus.

Abstract: Various embodiments of the present disclosure provide a method for carrier control. The method which may be performed by a network node comprises calculating first feedback latency of a terminal device with respect to the network node, based at least in part on a numerology of a candidate cell for the terminal device. The method may further comprise determining whether to select the candidate cell as a secondary cell of the terminal device, according to the first feedback latency.

Abstract: Various embodiments of the present disclosure provide a method for multicast communication. The method which may be performed by a terminal device comprises receiving an uplink resource indicator for a multicast traffic of the terminal device from a network node. The uplink resource indicator may be used to indicate different uplink resources for multicast feedback of different terminal devices in a multicast group receiving the multicast traffic. The method further comprises determining an uplink resource for multicast feedback of the terminal device for the multicast traffic, according to the uplink resource indicator. In accordance with various embodiments of the present disclosure, hybrid automatic repeat request feedback may be implemented efficiently and flexibly for different traffics such as multicast and unicast traffics.

Abstract: A method and a base station for resource allocation are disclosed. According to an embodiment, the base station determines a number of physical resource blocks (PRBs) consumed by a code block. The base station allocates a first set of PRBs for a transmission for a terminal device, based on channel qualities of a second set of PRBs which have a quantity equaling to the determined number and have the worst channel qualities among the first set of PRBs.

Abstract: Embodiments of the present disclosure provide methods and apparatus for detecting interference in radio carrier band. A method performed at a network node may comprise: receiving, from a terminal device, a first report about channel state of a first frequency range, and a second report about channel state of a second frequency range; and determining whether the terminal device is interfered in any of the first frequency range or the second frequency range, based on a comparison between the channel state of the first frequency range and the channel state of the second frequency range. According to embodiments of the present disclosure, the deterioration of channel state in a frequency range caused by interference may be shown and recognized via the comparison result.

Abstract: The present disclosure provides a method (100) in a network node. The method (100) includes: transmitting (110), to a terminal device, a first instruction to apply a first rank configuration; receiving (120), from the terminal device, a first report containing a first rank value and a first channel quality indication; and transmitting (130), to the terminal device, a second instruction to apply a second rank configuration in response to a mismatch between a Modulation and Coding Scheme, MCS, adjusted while transmitting data using the first rank value and the first channel quality indication, wherein the second rank configuration indicates that the first rank value is forbidden to be reported.

Abstract: Embodiments of the present disclosure provide methods and apparatus for configuring channel resource. A method performed at a network node may comprise: determining (S101) a need to change radio frequency of a cell served by the network node; determining (S102) whether a configuration for channel resource to which the radio frequency to be changed has been received by a terminal device served in the cell; and transmitting (S103), to the terminal device, an indicator for the configuration for the channel resource, in response to that the configuration for the channel resource has been received by the terminal device. According to embodiments of the present disclosure, the network node may just transmit an indicator for the configuration for the channel resource, and thus the messages in the communication network needed to configure channel resource may be reduced.

Abstract: An intelligent integrated anti-collision system and method for a pier, including: a radar sensing device disposed at the joint between the pier and a girder, image collection devices disposed around the pier, control system, hydraulic system and execution device, where the radar sensing and image collection devices transmit collected signals to the control system, which uses the hydraulic system to control the action of the execution device; the execution device is disposed at a middle part of the pier and includes a plurality of sections of steel-reinforced rubber concrete girder connected end to end through pulleys, the hydraulic system can drive the pulleys to rotate to enable the sections to be located on the same horizontal line, and an energy dissipation apparatus is disposed at the tail end of the last section to realize energy dissipation of the energy generated by impact when an object impacts the energy dissipation apparatus.

Abstract: A magnetic tag sensor includes a cylinder and threaded pipe embedded therein and simulates a magnetic dipole; two threaded pipe wiring interfaces being connected to first and second cables, running through a cylinder upper cross-section outer wall and extending out of the cylinder; the cylinder is sleeved on a guide rail and at a junction between a riverbed and water; an guide rail end inserts into the riverbed, a water sealing box is mounted on a top of the guide rail, a power supply module, a relay and a load arranged inside the water sealing box, the first cable connected to a positive pole of the power supply module, and the second cable connected to a negative pole through the relay and load connected in series; and the threaded pipe in the wall of the cylinder moves up and down with the riverbed to generate a magnetic field signal.

Abstract: The present disclosure provides a method (100) at a first network node and a method (300) at a second network node. The method (100) at the first network node comprises performing (110) scheduling in a first frequency band and providing (120) information related to a result of the scheduling to the second network node. The method (300) at the second network node comprises obtaining (310) information related to a result of scheduling by the first network node in a first frequency band and determining (320), based at least on the information, a size of a guard band between the first frequency band and a second frequency band to be scheduled by the second network node.

Abstract: A device and method for reinforcing recycled aggregate based on in-situ C—S—H production including a first, second, third chamber, and a blast drier. A spray structure arranged on the top of the third chamber; the first and second chamber connected to the spray structure through pumps. A hollowed container arranged at the bottom of the spray structure. A certain gap reserved between the bottom of the container and the bottom of the third chamber, the bottom of the third chamber is provided with at least one drain outlet; the blast drier connected to the bottom of the third chamber, and a cover is arranged on the top of the third chamber. The first chamber contains calcium hydroxide solution. The second chamber contains a mixed solution of TEOS, water and anhydrous ethanol. The container is arranged in the third chamber, and the container is used to contain to-be-treated recycled aggregate.

Abstract: A magnetic tag sensor includes a cylinder and threaded pipe embedded therein and simulates a magnetic dipole; two threaded pipe wiring interfaces being connected to first and second cables, running through a cylinder upper cross-section outer wall and extending out of the cylinder; the cylinder is sleeved on a guide rail and at a junction between a riverbed and water; an guide rail end inserts into the riverbed, a water sealing box is mounted on a top of the guide rail, a power supply module, a relay and a load arranged inside the water sealing box, the first cable connected to a positive pole of the power supply module, and the second cable connected to a negative pole through the relay and load connected in series; and the threaded pipe in the wall of the cylinder moves up and down with the riverbed to generate a magnetic field signal.

Abstract: A device and method for reinforcing recycled aggregate based on in-situ C—S—H production including a first, second, third chamber, and a blast drier. A spray structure arranged on the top of the third chamber; the first and second chamber connected to the spray structure through pumps. A hollowed container arranged at the bottom of the spray structure. A certain gap reserved between the bottom of the container and the bottom of the third chamber, the bottom of the third chamber is provided with at least one drain outlet; the blast drier connected to the bottom of the third chamber, and a cover is arranged on the top of the third chamber. The first chamber contains calcium hydroxide solution. The second chamber contains a mixed solution of TEOS, water and anhydrous ethanol. The container is arranged in the third chamber, and the container is used to contain to-be-treated recycled aggregate.