Abstract: A computer-implemented method for determining a path arrangement of an infrastructure link network with a trunk-and-branch topology. The method includes: modelling a geographic terrain including three or more geographic locations that are connectable with each other via an infrastructure link network; determining a cost function associated with a cost for constructing the infrastructure link network that connects the three or more geographic locations; and determining a path arrangement of the infrastructure link network based on the modelled geographic terrain and by optimizing the cost function taking into account one or more constraints. The path arrangement of the infrastructure link network has a trunk-and-branch topology and includes: three or more infrastructure links that connect the three or more geographic locations, and one or more connection points each arranged between two or more of the infrastructure links.

Abstract: A holder component includes: a holder for accommodating a battery core, the battery core including a first end and a second end; and a conductive structure arranged on the holder, the conductive structure extending from the first end of the battery core to the second end of the battery core, the conductive structure having at least two first elastic abutting electrodes located at the first end of the battery core and at least two second elastic abutting electrodes located at the second end of the battery core.

Abstract: There are provided a backlight assembly (1) and a display device, the backlight assembly (1) includes a light source substrate (10), a microstructure film layer (30) and a backlight film material layer (20); the backlight film material layer (20) is located on a light outgoing side of the light source substrate (10), the microstructure film layer (30) is provided between the light source substrate (10) and the backlight film material layer (20), the microstructure film layer (30) includes a light transmission layer (301) and a microstructure region (302); the microstructure region (302) is provided at an edge position of the microstructure film layer (30).

Abstract: Provided is a matching method for manufacturing a liquid crystal display (LCD) device. The method includes: acquiring luminance data of a plurality of backlight modules and transmittance data of a plurality of LCD panels under a same driving condition; acquiring N backlight groups by grouping the plurality of backlight modules based on the luminance data; acquiring N panel groups by grouping the plurality of LCD panels based on the transmittance data; and determining a corresponding relationship between the backlight group and the panel group.

Abstract: A supporting structure, including: a carrying plate configured to carry a foldable screen; a supporting assembly comprising two supporting members, each of which are rotatably connected to the carrying plate; a coupling shaft located between the two supporting member and disposed parallel to the carrying plate and rotation axes of the two supporting members; and a connecting assembly, comprising a first connecting piece and a second connecting piece, the first connecting piece rotatably connected to the first supporting member and the coupling shaft respectively, and the second connecting piece rotatably connected to the second supporting member and the coupling shaft respectively; wherein, in a case that the coupling shaft is at a first position, the supporting structure is in a storage state; and in a case that the coupling shaft is at a second position, the two supporting members are configured to support the carrying plate.

Abstract: A semiconductor memory package includes a substrate, a first stack of memory dies, and a second stack of memory dies. The first stack of memory dies includes a first substack of staggered memory dies offset with respect to each other in a first direction and a second substack of staggered memory dies offset with respect to each other in the first direction and positioned above the first substack. The second stack of memory dies includes a third substack of staggered memory dies offset with respect to each other in a second direction and a fourth substack of staggered memory dies offset with respect to each other in the second direction and positioned above the third substack. The top memory die of the first substack and a memory die positioned below the top memory die of the third substack are at least partially coplanar.

Abstract: A method for resource allocation in a disaggregated data center (DDC), comprising: a reliability model to determine an achievable reliability for a service request to the DDC; a integer linear programming (ILP) model to perform a resource allocation for the service request to the DDC such that maximizing total number of service requests received by the DDC accepted for execution is maximized, while the number of the accepted service requests allocated with backup computing resources is minimized; and a heuristic process to perform a resource allocation for the service request to the DDC such that the least reliable node of each needed computing resource type is allocated but still meeting the reliability requirement of the service request.

Abstract: A preparation method for a concrete additive for a maritime work environment includes: S1, compounding a volcanic ash material containing aluminum oxide and lime in proportion, loading a mixture into a sugar coating machine, and spraying a proper amount of alcohol, to prepare spherical particles; S2, adding the spherical particles in S1 and cement into the sugar coating machine, uniformly spraying deionized water in a rotating process, and coating surface layers of the spherical particles with a layer of cement for maintenance; and S3, placing the maintained particles in S2 into a hydrophobic emulsion, and coating the surface layers of the particles with a layer of hydrophobic emulsion, to obtain a concrete additive.

Abstract: The present disclosure relates to the field of display technology, and proposes a flexible display device. The flexible display device includes: a housing, with an opening provided thereon; a winding shaft, arranged in the housing; a flexible display panel, having one end connected to the winding shaft, and an opposite end extending out of the housing through the opening; a support member, having one end connected to the winding shaft, and an opposite end extending out of the housing through the opening, wherein the support member includes a plurality of support bars arranged side by side, and a length direction of the support bars is consistent with an axial direction of the winding shaft, and each of the support bars is provided with a through hole, and the through hole penetrates two end faces of a width direction of the support bars; a plurality of moving members.

Abstract: The present application discloses autonomous driving methods and apparatuses that may be applied to an intelligent vehicle and an autonomous driving vehicle. An example method includes: obtaining a motion status of an obstacle; determining a location of a towing point and a speed of the towing point based on the motion status of the obstacle, where both the location of the towing point and the speed of the towing point are continuous functions of the motion status of the obstacle; and obtaining expected acceleration of an ego vehicle based on the location of the towing point and the speed of the towing point.

Abstract: A flexible screen display device includes: a hollow housing having an opening; a receiving shaft fixed inside the housing; a first guiding shaft fixed inside the housing; a second guiding shaft fixed inside the housing; a flexible screen, one end of which is connected to the receiving shaft, and the other end of which sticks out of the opening via the first guiding shaft and the second guiding shaft to deploy or receive the flexible screen. The first guiding shaft is close to the receiving shaft with respect to the second guiding shaft, and the flexible screen forms a one-time guided bending section via the first guiding shaft and the second guiding shaft.

Abstract: A photovoltaic inverter, a photovoltaic system, and a method for controlling discharging are provided. The photovoltaic inverter includes a first DCDC converter, an inverter circuit, a first discharging circuit, and a controller. A port capacitor is connected between a positive input end and a negative input end of the first DCDC converter. The port capacitor includes an X capacitor and a first group of Y capacitors. The first discharging circuit is connected between a common terminal of the first group of Y capacitors and a direct current bus, where the common terminal of the first group of Y capacitors is grounded. The controller is configured to control, when receiving a rapid shutdown instruction, the first discharging circuit to operate. The first discharging circuit is configured to discharge electrical energy of the port capacitor.

Abstract: The planning method includes: obtaining a distance map; determining a first horizontal background cost potential field in a near-field range based on the distance map, where the first horizontal background cost potential field is a first repulsion field formed by an obstacle at a horizontal location on the traveling apparatus, the first horizontal background cost potential field includes a target minimum-value point, background costs on two horizontal sides of the target minimum-value point feature monotonicity, and the background cost represents a near-field horizontal collision cost caused by the obstacle at the horizontal location in the near-field range to the traveling apparatus; and determining a current obstacle avoidance path based on the first horizontal background cost potential field. The method for planning an obstacle avoidance path in embodiments of this application enables the traveling apparatus to avoid an obstacle safely and stably in a complex and narrow traffic scenario.

Abstract: A support assembly and a display device are described, the support assembly supporting a flexible display panel. The support assembly includes a plurality of first support members and a plurality of second support members which are alternately arranged in a first direction. A first support member includes an arc surface facing away from a side of the flexible display panel and protruding away from the flexible display panel. The first and a second support member can be close to each other so that the side surface of the second support member can be in contact with the arc surface, thus the support assembly is curled in the first direction. The first and second support member can be separated from each other so that the side surface of the second support member can be separated from the arc surface, thus the support assembly stretches in the first direction.

Abstract: A photovoltaic assembly turnoff device, and a photovoltaic system. The rapid turnoff method includes: after receiving a start signal, a photovoltaic assembly turnoff device controls itself to be turned on, so that a photovoltaic assembly connected thereto achieves electric energy output; then, the photovoltaic assembly turnoff device can measure a state parameter thereof to determine whether a corresponding inverter channel in a photovoltaic system has a fault; if the corresponding inverter channel in the photovoltaic system has the fault, control the photovoltaic assembly turnoff device to be turned off, so that the photovoltaic assembly connected thereto stops the electric energy output; if the corresponding inverter channel in the photovoltaic system has no fault, always keep the photovoltaic assembly turnoff device to be turned on.

Abstract: The present disclosure discloses a backlight module and a display apparatus. A microprism film layer is further arranged on a light emitting side of a light guide plate, and the microprism film layer is located in a range of a preset distance by which the light guide plate extends from a side close to a light source to a side away from the light source; and the microprism film layer includes a plurality of first microprism structures, and the first microprism structures are configured to make an incident angle of light at a first interface when entering the first microprism structures greater than an emitting angle of the light at the first interface when exiting from the first microprism structures when the light in the light guide plate enters the first microprism structures from the light guide plate and then enters the light guide plate from the first microprism structures.

Abstract: The invention discloses an inflatable toy, which includes a toy shell, a bubble blowing device and a fan. Herein, the toy shell is used for a carrier of the inflatable toy, the bubble blowing device is at least partially located inside the toy shell, the fan is used for inflating and providing flowing air, and the toy shell and the bubble blowing device share the same fan. With the adoption of the above technology, by skillfully combining the toy shell with the bubble blowing device, the inflatable toy can blow beautiful bubbles at the same time, which is more ornamental and fun. Meanwhile, the toy shell and the bubble blowing device share the fan, which finally achieves the purpose of saving energy, making the inflatable toy more vivid and lifelike and can interact with others.

Abstract: A photovoltaic system and a method for locating devices in a photovoltaic string. A communication host in the photovoltaic system acquires accumulated operation durations of MLPE apparatuses of the photovoltaic string, ranks the accumulated operation durations to obtain a ranking result, and determines a physical location of each device in the photovoltaic string according to the ranking result and a sequence of installing positions of the devices, where the devices are installed at the installing positions based on the sequence. It is not necessary to paste label codes on the MLPE apparatuses, or record serial numbers of the MLPE apparatuses by installation personnel. Operation processes are simplified, operation time is saved, and labor costs are reduced.

Abstract: A photovoltaic system and a communication method therefor. The communication method includes: each slave sends a report signal to a host, and monitors a response signal of the host; and if the at least one slave receives the response signal, the corresponding slave executes a corresponding action on the basis of the response signal. Therefore, communication between the host and each slave is achieved in a mode that each slave actively sends the report signal, the host is prevented from adopting a roll call query mode, and occupation of bus resources by the host is reduced.

Abstract: A displaying device and a driving method thereof, wherein the displaying device includes a first display panel, a second display panel and a driving circuit; the first display panel includes a plurality of first pixel units that are able to display a color, wherein each of the first pixel units includes a plurality of sub-pixel units; and the second display panel is provided on a light exiting side of the first display panel, including a plurality of second pixel units; wherein a distribution density of the plurality of second pixel units is greater than a distribution density of the plurality of sub-pixel units.