Abstract: An antenna and a communication device are disclosed, and relate to the field of communication device technologies. The antenna includes a ground plane and at least one group of antenna elements disposed on the ground plane. One group of antenna elements include two dipole radiation arms and two monopole radiation arms. A feed point is provided on the dipole radiation arms and/or the monopole radiation arms. The dipole radiation arms are provided with a support structure. For a same group of antenna elements, both the two dipole radiation arms are disposed in parallel to the ground plane via the support structure; both the two monopole radiation arms are vertically disposed on the ground plane; and both the two dipole radiation arms are located between the two monopole radiation arms, and the two dipole radiation arms and the two monopole radiation arms are in a same plane.

Abstract: Provided in the present disclosure are a core flooring layer of a light-foamed SPC floor and a light-foamed SPC floor. Based on the total weight of the core flooring, the core flooring of the present disclosure contains 65.0˜75.0 wt % of calcium carbonate, 18.0˜25.0 wt % of polyvinyl chloride resin, 2.2˜3.0 wt % of a foaming regulator, 2.5˜3.3 wt % of a stabilizer, 0.10˜0.20 wt % of a plasticizer, 0.10˜0.15 wt % of an external lubricant, 0.1˜0.40 wt % of an ADC foaming agent, and 0.5˜1.0 wt % of an NC foaming agent. The present disclosure can greatly reduce the density of a SPC floor while improving the static bending strength, flexural elastic modulus and peeling strength, and reducing heating warpage.

Abstract: A polyethylene terephthalate (PET) film pressing cell connection system (CCS) assembly is provided. The PET film pressing CCS assembly includes a PET film, where an upper surface of the PET film is provided with adhesive and adhered with two rows of aluminum foils; the upper surface of the PET film between the two rows of aluminum foils is adhered with a flexible printed circuit (FPC); two sides of the FPC are provided with protruding nickel sheets; the nickel sheets at the two sides of the FPC are welded to the two rows of aluminum foils, respectively; the FPC and the aluminum foils welded by the nickel sheets are adhered and fixed to the PET film through pressing; and the upper surface of the PET film is provided with a window corresponding to a bending groove of the aluminum foil.

Abstract: A comprehensive characterization method of cuttability of hydraulic fracturing hard rock is provided, including the following steps: constructing a hard rock hydraulic fracturing fracture evolution model, and carrying out simulation evolution based on the hard rock hydraulic fracturing fracture evolution model to determine master control physical quantities; calculating average influence degree of the master control physical quantities on fracture density, and constructing a comprehensive characterization model of the fracture density; monitoring evolution characteristics of peak cutting force of hard rock in a simulation evolution process, and fitting a functional relationship between the peak cutting force and the fracture density; and constructing a comprehensive characterization model of the peak cutting force, and obtaining the cuttability of the hard rock through the comprehensive characterization model of the peak cutting force.

Abstract: A power divider and an electronic device are provided. The power divider includes: a main port having an input characteristic admittance; a first output port having a first characteristic admittance; a second output port having a second characteristic admittance, where the second and the first characteristic admittances have a predetermined ratio relationship; a first adjustment branch coupled between the main port and the first output port; and a second adjustment branch coupled between the main port and the second output port. The input characteristic admittance is a sum of admittances presented by the first and second adjustment branches at the main port. The admittance presented by the first adjustment branch at the main port and the admittance presented by the second adjustment branch at the main port are adjustable and the input characteristic admittance is enabled to be equal to a sum of the first and the second characteristic admittances.

Abstract: A directional antenna and a communication device are provided in this disclosure. The directional antenna includes a first element, a second element and a first reflector. An operating frequency band of the first element is a first frequency band, and an operating frequency band of the second element is a second frequency band. An equivalent electrical length of the first reflector is equal to or slightly greater than one half of the wavelength of the first frequency band. The first reflector includes a first resonant circuit, the first resonant circuit includes a first capacitive part and a first inductive part that are connected in parallel. A resonance frequency of the first resonant circuit is within the second frequency band, and an equivalent electrical length of any part other than the first resonant circuit in the first reflector is less than one half of the wavelength of the second frequency band.

Abstract: A heat pump system having a common refrigerant flow path split coupled to heating mode first and second refrigerant streams. In the common refrigerant flow path, a compressor is coupled to receive refrigerant from the heating mode first refrigerant stream and the heating mode second refrigerant stream. A refrigerant-to-refrigerant heat exchanger couples heat between the heating mode first refrigerant stream and the heating mode second refrigerant stream. A first refrigerant-air heat exchanger and a second refrigerant-air heat exchanger in a second air flow conduit is coupled to receive a first air flow from a first refrigerant-air heat exchanger in a first air flow conduit.

Abstract: Provided in the present disclosure are a core flooring layer of a light-foamed SPC floor and a light-foamed SPC floor. Based on the total weight of the core flooring, the core flooring of the present disclosure contains 65.0˜75.0 wt % of calcium carbonate, 18.0˜25.0 wt % of polyvinyl chloride resin, 2.2˜3.0 wt % of a foaming regulator, 2.5˜3.3 wt % of a stabilizer, 0.10˜0.20 wt % of a plasticizer, 0.10˜0.15 wt % of an external lubricant, 0.1˜0.40 wt % of an ADC foaming agent, and 0.5˜1.0 wt % of an NC foaming agent. The present disclosure can greatly reduce the density of a SPC floor while improving the static bending strength, flexural elastic modulus and peeling strength, and reducing heating warpage.

Abstract: A multibeam antenna including a substrate, and further includes an antenna element, a first guiding apparatus, and a second guiding apparatus disposed on the substrate. The antenna element includes a first pole configured to receive a feeding signal and a second pole that is grounded. The first guiding apparatus enables a first beam generated by the antenna element to radiate in a first direction, and the second guiding apparatus enables a second beam generated by the antenna element to radiate in a second direction. A phase center of the antenna element is at an intersecting point of a first axis and a second axis, the first axis passing through a phase center of the first guiding apparatus and parallel to the first direction, and the second axis passing through a phase center of the second guiding apparatus and parallel to the second direction.

Abstract: Systems, apparatuses, and methods for converting data to a tiling format when implementing convolutional neural networks are disclosed. A system includes at least a memory, a cache, a processor, and a plurality of compute units. The memory stores a first buffer and a second buffer in a linear format, where the first buffer stores convolutional filter data and the second buffer stores image data. The processor converts the first and second buffers from the linear format to third and fourth buffers, respectively, in a tiling format. The plurality of compute units load the tiling-formatted data from the third and fourth buffers in memory to the cache and then perform a convolutional filter operation on the tiling-formatted data. The system generates a classification of a first dataset based on a result of the convolutional filter operation.

Abstract: A system configured to perform scalable video encoding is provided. The system includes a memory; and a processing unit, wherein the processing unit is configured to: receive inter-layer data and a current picture, wherein the current picture has a base layer; upsample the inter-layer data to generate residual data and reconstruction data, wherein the inter-layer data includes a base mode flag; and encode the current picture to an enhanced layer using the upsampled inter-layer data based on a block type of the base layer and the base mode flag.

Abstract: An antenna and a communication device are disclosed. The antenna may be used in an access point. The antenna specifically includes a first conductor sheet and a feed point. The first conductor sheet includes at least two cavities. The at least two cavities are connected through a gap. A circumference of each of the at least two cavities approaches a wavelength corresponding to an operating frequency band of the antenna. The feed point is connected to the gap. The antenna with a simple structure and a small size may generate two beams. Therefore, an access point disposed with the antenna may generate strong wireless signals in two directions, and the wireless signal may cover an adjacent room. In this way, there is no need to deploy an access point in each room, and a quantity of wireless access points to be deployed is reduced.

Abstract: The disclosure provides screening methods to identify small molecule compounds that can promote single circulating tumor cells (CTCs) proliferation, or alternatively inhibit proliferation by CTCs, and uses thereof, including as treatment options for cancer.

Abstract: Systems, apparatuses, and methods for converting data to a tiling format when implementing convolutional neural networks are disclosed. A system includes at least a memory, a cache, a processor, and a plurality of compute units. The memory stores a first buffer and a second buffer in a linear format, where the first buffer stores convolutional filter data and the second buffer stores image data. The processor converts the first and second buffers from the linear format to third and fourth buffers, respectively, in a tiling format. The plurality of compute units load the tiling-formatted data from the third and fourth buffers in memory to the cache and then perform a convolutional filter operation on the tiling-formatted data. The system generates a classification of a first dataset based on a result of the convolutional filter operation.

Abstract: An antenna and an electronic device are provided. The antenna includes: a radiating element pair, including a first radiating element and a second radiating element that are arranged in an annular array, where the first radiating element and the second radiating element are symmetrically arranged with respect to a symmetry line, the symmetry line passes through a center point of the annular array, and the first radiating element or the second radiating element is in an arc shape centered on the center point, or extends in a tangent direction of an arc shape centered on the center point; and a feed structure, including a first feed part and a second feed part, where the first feed part is coupled to the first radiating element, and the second feed part is coupled to the second radiating element.

Abstract: A power divider and an electronic device are provided. The power divider includes: a main port having an input characteristic admittance; a first output port having a first characteristic admittance; a second output port having a second characteristic admittance, where the second and the first characteristic admittances have a predetermined ratio relationship; a first adjustment branch coupled between the main port and the first output port; and a second adjustment branch coupled between the main port and the second output port. The input characteristic admittance is a sum of admittances presented by the first and second adjustment branches at the main port. The admittance presented by the first adjustment branch at the main port and the admittance presented by the second adjustment branch at the main port are adjustable and the input characteristic admittance is enabled to be equal to a sum of the first and the second characteristic admittances.

Abstract: A heat pump system with a refrigerant flow path comprising, in the heating mode of operation: a compressor coupled to receive refrigerant from a heating mode first refrigerant stream and a heating mode second refrigerant stream of the refrigerant flow path; the condenser coupled to receive refrigerant from the compressor; and a heat exchanger for transferring heat between the heating mode first refrigerant stream and the heating mode second refrigerant stream, wherein the heating mode first refrigerant stream comprises: the first expansion valve coupled to receive refrigerant from the condenser; the first evaporator coupled to receive refrigerant from the first expansion valve; and the heat exchanger coupling the heating mode first refrigerant stream from the first evaporator to the compressor, wherein the heating mode second refrigerant stream comprises: the second expansion valve; the heat exchanger coupling the heating mode second refrigerant stream from the condenser to the second expansion valve; and the

Abstract: A multibeam antenna including a substrate, and further includes an antenna element, a first guiding apparatus, and a second guiding apparatus disposed on the substrate. The antenna element includes a first pole configured to receive a feeding signal and a second pole that is grounded. The first guiding apparatus enables a first beam generated by the antenna element to radiate in a first direction, and the second guiding apparatus enables a second beam generated by the antenna element to radiate in a second direction. A phase center of the antenna element is at an intersecting point of a first axis and a second axis, the first axis passing through a phase center of the first guiding apparatus and parallel to the first direction, and the second axis passing through a phase center of the second guiding apparatus and parallel to the second direction.

Abstract: Systems, apparatuses, and methods for converting data to a tiling format when implementing convolutional neural networks are disclosed. A system includes at least a memory, a cache, a processor, and a plurality of compute units. The memory stores a first buffer and a second buffer in a linear format, where the first buffer stores convolutional filter data and the second buffer stores image data. The processor converts the first and second buffers from the linear format to third and fourth buffers, respectively, in a tiling format. The plurality of compute units load the tiling-formatted data from the third and fourth buffers in memory to the cache and then perform a convolutional filter operation on the tiling-formatted data. The system generates a classification of a first dataset based on a result of the convolutional filter operation.

Abstract: A directional antenna and a communication device are provided in this disclosure. The directional antenna includes a first element, a second element and a first reflector. An operating frequency band of the first element is a first frequency band, and an operating frequency band of the second element is a second frequency band. An equivalent electrical length of the first reflector is equal to or slightly greater than one half of the wavelength of the first frequency band. The first reflector includes a first resonant circuit, the first resonant circuit includes a first capacitive part and a first inductive part that are connected in parallel. A resonance frequency of the first resonant circuit is within the second frequency band, and an equivalent electrical length of any part other than the first resonant circuit in the first reflector is less than one half of the wavelength of the second frequency band.