Abstract: A method of closing an opening in a tissue comprises providing a light absorbing material, introducing the light absorbing material into a tissue opening, and irradiating the light absorbing material with at least one light source so as to increase a temperature of the light absorbing material, causing the tissue edges of the tissue opening adhere to the light absorbing material and/or to each other. A kit comprising a light absorbing material and a light emitting device is also described.

Abstract: Disclosed are an edge coating apparatus and method for a photovoltaic cell precursor. The edge coating apparatus includes a coating device. The coating device includes a coating wheel capable of rotation, and a feeding mechanism for supplying a coating material to the coating wheel. The coating wheel has an accommodating cavity for accommodating the coating material and a plurality of discharging channels communicating the accommodating cavity and an outer circumference surface of the coating wheel, and the plurality of discharging channels are circumferentially spaced apart.

Abstract: A structural color image includes a metallic layer, a nanocomposite film, and a dielectric layer between and in direct contact with the metallic layer and the nanocomposite film. The metallic layer reflects visible light. The nanocomposite film reflects visible light and includes metallic nanoparticles in a polymeric material.

Abstract: A computer implemented system and method for generating data sets representing traffic scenarios to be used for training and/or testing automated driving functions are disclosed. The system includes one or more processors and a memory that stores one or more programs that are configured to be executed by the one or more processors. The programs include at least one first Large Language Model (LLM) and/or Vision Language Model (VLM) being trained at least on formatted text descriptions of traffic scenarios and on natural language to perform a task given a prompt.

Abstract: A polarimetric metastructure is disclosed that includes a metasurface structure, one or more vertically coupled double-layer metallic gratings, and a dielectric spacer layer between the metasurface structure and the vertically coupled double-layer metallic gratings.

Abstract: A polarization-based underwater navigation and global positioning system is disclosed that includes dual polarization cameras comprising a small angle view imaging lens configured to detect full Stokes parameters simultaneously and a computer system programmed with a model for a skylight polarization mapping with a scattering model of light inside turbid water.

Abstract: An antenna structure includes a metal cavity and a first radiator. A first slot and a second slot are provided on a first metal layer of the metal cavity, and a first end of the second slot is connected to the first slot. A first feed point is disposed in the first slot, and a second feed point is disposed in the second slot.

Abstract: Antenna elements and electronic devices are provided, including an antenna element includes a first radiator, a second radiator, and a radiator array. The first radiator is connected to a ground plane through a grounding component, the second radiator is spaced from the ground plane and disposed opposite to the ground plane, and the second radiator and the first radiator are spaced apart. The radiator array is spaced from the first radiator and disposed opposite to the first radiator, and is located on a side that is of the first radiator and that is further from the ground plane. The radiator array includes at least two sub-radiators, and the at least two sub-radiators are spaced from each other in an extension direction of a plane on which the radiator array is located. The first radiator includes a first hollow region, and the radiator array includes a second hollow region.

Abstract: A structural color image includes a metallic layer, a nanocomposite film, and a dielectric layer between and in direct contact with the metallic layer and the nanocomposite film. The metallic layer reflects visible light. The nanocomposite film reflects visible light and includes metallic nanoparticles in a polymeric material.

Abstract: A reconsolidated bamboo beam-column joint connected by a subassembly and a design method thereof are provided. Rectangular shear steel plates and vertical steel plates in embedded steel plates form an H-shaped section, and left and right ends of the vertical steel plates are embedded in mortises of a reconsolidated bamboo column and a reconsolidated bamboo beam respectively, thereby effectively improving bearing capacity of the joint. A half tenon is provided with an elliptical bolt hole in a penetrating manner and connected to the reconsolidated bamboo column by a bolt, and the half tenon is rotatable along a center of the elliptical bolt hole and movable along a long axis of the elliptical bolt hole, so that the energy is dissipated through friction between the reconsolidated bamboo half tenon and mortises, excellent energy consumption ability of the half tenon structure is exerted, and the anti-pulling resistance of the tenon is improved.

Abstract: Provided is a battery assembly, which includes a cover plate and a pole. The pole penetrates the cover plate and is fixed with the cover plate by riveting. For the battery assembly provided by the application, the pole and the cover plate are fixed by riveting. Compared with the fixing method of welding, it not only simplifies the fixing operation, improves the production efficiency, but also reduces the production cost. Also provided are a preparation method of a battery assembly, a battery and an electric vehicle.

Abstract: Disclosed are a photovoltaic cell and a preparation method therefor. The preparation method includes preparing a grid line of the photovoltaic cell by the following steps: coating a mask material over a front surface and/or back surface of a solar cell precursor, and curing the mask material to form a mask; exposing a local area of the mask according to properties of the mask, to form a development reaction area with width gradient in the mask; developing the mask in the development reaction area, to form a mask opening with width gradient in the development reaction area; electroplating a metal in the mask opening, to form the grid line with width gradient; and removing the mask. The optical width of the grid line is reduced to improve the photoelectric conversion efficiency of the photovoltaic cell.

Abstract: An antenna array includes a plurality of first antenna elements and second antenna element(s). The first antenna elements operate at least in a first frequency band and a second frequency band, and any frequency in the second frequency band is higher than any frequency in the first frequency band. The second antenna element(s) operate at least in a third frequency band, and the third frequency band at least partially overlaps the second frequency band. The first antenna elements are arranged at intervals, and the second antenna element(s) is/are disposed between at least two adjacent first antenna elements. A center distance between every two adjacent first antenna elements is within a preset size range, so that a gain of the antenna array in the first frequency band is greater than or equal to a target value.

Abstract: The present disclosure relates to utilizing a host failure recovery system to efficiently and accurately determine the health of host devices. For example, the host failure recovery system detects when a host server is failing by utilizing a power failure detection model that determines whether a host server is operating in a healthy power state or an unhealthy power state. In particular, the host failure recovery system utilizes a multi-layer power failure detection model that determines power-draw failure events on a host device. The failure detection model determines, with high confidence, the health of a host device based on power-draw signals and/or usage characteristics of the host device. Additionally, the host failure recovery system can initiate a quick recovery of a failing host device.

Abstract: Disclosed are a method and apparatus for electroplating a solar cell precursor. The method includes providing a mask opening on a surface of a cell precursor to be electroplated, such that a conductive material layer of the cell precursor is exposed at a bottom of the mask opening. The method further includes directly or indirectly connecting a first end portion of a conductive piece to the conductive material layer of the cell precursor, such that an electrical connection is formed between the conductive piece and the cell precursor. The conductive piece is a flexible structure capable of being bent.

Abstract: An ultraviolet sterilization device includes a liquid passing pipe assembly and an ultraviolet light source. The liquid passing pipe assembly includes a shell and a transparent hollow pipe, the shell is sleeved on the hollow pipe, the shell is provided with an accommodating groove. The ultraviolet light source is provided in the accommodating groove. An end of the hollow pipe is configured as a liquid inlet end, and another end thereof is configured as a liquid outlet end, and the hollow pipe is used for circulating liquid. The wall surface of the hollow pipe is covered with a reflective film, the reflective film is provided with first light transmitting holes at the position corresponding to the ultraviolet light source. The first light transmitting hole is communicated with the accommodating groove, and the reflective film is used for scattering the ultraviolet light in different areas in the hollow pipe.

Abstract: The present disclosure relates to utilizing a host failure recovery system to efficiently and accurately determine the health of host devices. For example, the host failure recovery system detects when a host server is failing by utilizing a power failure detection model that determines whether a host server is operating in a healthy power state or an unhealthy power state. In particular, the host failure recovery system utilizes a multi-layer power failure detection model that determines power-draw failure events on a host device. The failure detection model determines, with high confidence, the health of a host device based on power-draw signals and/or usage characteristics of the host device. Additionally, the host failure recovery system can initiate a quick recovery of a failing host device.

Abstract: Disclosed are an edge coating apparatus and method for a photovoltaic cell precursor. The edge coating apparatus includes a coating device. The coating device includes a coating wheel capable of rotation, and a feeding mechanism for supplying a coating material to the coating wheel. The coating wheel has an accommodating cavity for accommodating the coating material and a plurality of discharging channels communicating the accommodating cavity and an outer circumference surface of the coating wheel, and the plurality of discharging channels are circumferentially spaced apart.

Abstract: Disclosed is use of a Histatin-1 polypeptide in promotion of cartilage regeneration or repair. By preparing a combined reagent containing a Histatin-1 polypeptide, a biological scaffold material and the like, mainly a linear Hst1 is loaded on gelatin methacrylate so as to be used for repairing cartilage damage or promoting cartilage growth; meanwhile, disclosed is use of a Histatin-1 polypeptide in promotion of the expression of one or more of bone differentiation indexes, including a collagen fiber, glycosaminoglycan, type II collagen and aggrecan.

Abstract: Disclosed are a cleaning system and method for a solar cell. The cleaning system includes a cleaning device including a soaking tank configured to accommodate cleaner; and a filtering device configured to filter a first substance being a mixture of the cleaner and mask residue in the soaking tank. The filtering device including: a sucking apparatus including an sucking port for sucking the first substance; a spraying apparatus, including a spraying port oriented a region that the sucking port is capable of sucking in a bottom of the soaking tank, and the spraying port being configured to spry liquid or gas to flush the bottom of the soaking tank; and a filtering apparatus, connected to the sucking apparatus to receive and filter the first substance sucked by the sucking port.