Abstract: This application provides a precoding matrix indicating and determining method and a communications apparatus. The method includes: generating, by a terminal device, first indication information, and sending the first indication information to a network device, where the first indication information indicates a spatial domain vector, a frequency domain vector, and a weighting coefficient that are used to construct a precoding matrix. When a value of a rank Z is greater than 2, Z transport layers include at least one first-type transport layer, and a maximum quantity M1 of frequency domain vectors reported for the first-type transport layer satisfies: M 1 = ? p 1 × N 3 R ? , wherein p1 is a preconfigured coefficient for determining the maximum quantity of frequency domain vectors reported for the first-type transport layer, 1?p1?0, R is a preconfigured value, N3 is a length of a frequency domain vector, Z>2, and R, N3, and Z are all positive integers.

Abstract: The invention discloses a nonlinear feedback circuit, which includes at least one diode. The invention also discloses a low noise amplifier using the nonlinear feedback circuit. In the invention, temperature compensation is performed for the gain change of the low noise amplifier based on the negative temperature characteristics of the diode, thereby achieving gain stability. In addition, the nonlinear characteristics of the diode can also provide high-order harmonics for the low-noise amplifier, and the mutual cancellation and addition of high-order harmonics can increase the OIP3 of the low noise amplifier.

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a host and a dopant, the host includes a first compound and a second compound, and the first compound, the second compound, and the dopant are different from one another. Two compounds in the host included in the emission layer may have different HOMO and LUMO energy levels and may form an exciplex, and a difference between a HOMO energy level and a LUMO energy level of the exciplex (?Eexciplex) may be greater than a difference between a HOMO energy level and a LUMO energy level of the dopant (?Edopant).

Abstract: A method for manufacturing a coil component comprises: forming a coil conductor including a winding portion, the winding portion including a plurality of first conductor portions and one or more second conductor portions smaller in number than the first conductor portions, the first and second conductor portions alternate with and connected to each other; forming a molded body by molding composite magnetic material including metal magnetic particles and a binder with the coil conductor being disposed inside the composite magnetic material; and heating the molded body to produce a magnetic base body. The magnetic base body is formed such that a distance between the first conductor portions and a first surface of the magnetic body is greater than a distance between the second conductor portions and a second surface of the magnetic base body opposite to the first surface, by molding, cutting or polishing.

Abstract: A gland packing includes a gland packing body made of expanded graphite. The gland packing body has a cylindrical shape, and has a plurality of layers formed in a radial direction. The gland packing body has first and second surfaces, which are both end surfaces in an axial direction. The gland packing further includes an annular first sheet portion made of expanded graphite, an annular second sheet portion made of expanded graphite, an annular first porous member, and an annular second porous member. The first sheet portion is arranged on the first surface. The second sheet portion is arranged on the second surface. The first porous member is arranged on the first sheet portion. The second porous member is arranged on the second sheet portion.

Abstract: A cell potential measurement device has a measuring plane on which a cell suspension is dropped. The cell potential measurement device includes a plurality of working electrodes and a reference electrode. The plurality of working electrodes are two-dimensionally arranged in a working region of the measuring plane. The reference electrode is provided outside the working area of the measuring plane. A contact angle in a hydrophobic region between the working region and the reference electrodes of the measuring plane is larger than a contact angle in the working region.

Abstract: An apparatus for processing speech data may include a processor configured to: separate an input speech into speech signals; identify a bandwidth of each of the speech signals; extract speaker embeddings from the speech signals based on the bandwidth of each of the speech signals, using at least one neural network configured to receive the speech signals and output the speaker embeddings; and cluster the speaker embeddings into one or more speaker clusters, each speaker cluster corresponding to a speaker identity.

Abstract: A test apparatus for testing a cable assembly includes a first air tightness tester, a second air tightness tester and an electrical tester. A first test device is operably connected to the first air tightness tester and the electrical tester, and a second test device is operably connected to the second air tightness tester and the electrical tester. With a first cable connector and a second cable connector of a cable installed on a respective one of the first test device and the second test device, an air tightness test and an electrical test are performed on the first cable connector and the second cable connector simultaneously.

Abstract: Disclosed is a motor comprising: a housing; a stator arranged in the housing; a rotor arranged in the stator; and a first bus bar arranged under the stator, wherein the first bus bar includes a plurality of neutral terminals which are connected to a coil of the stator, are separated by circuitry, and are arranged to be rotationally symmetrical with respect to one another based on the center of the stator. Accordingly, terminals of identical shapes are combined to implement terminals that are respectively connected to four circuits separated from one another, and thus, advantageous effects of ensuring accurate positions of the terminals and simplifying assembling processes are provided during the processes of molding the bus bar.

Abstract: Disclosed are a display panel and a display device, the display panel including: a substrate including a display area, a peripheral area and a welding area; at least one barrier in the peripheral area and surrounding the display area, the barrier including a single-sided barrier structure between the display area and the welding area; an organic insulating structure including sub-insulating structures, each sub-insulating structure having a first boundary located between the display area and the single-sided barrier structure, for any two adjacent sub-insulating structures, the first boundary of the sub-insulating structure on a side away from the substrate being closer to the display area than the first boundary of the sub-insulating structure on a side proximal to the substrate; a distance between first boundaries of any two adjacent sub-insulating structures is greater than or equal to 20 ?m; a touch electrode pattern; and a touch signal line.