Abstract: A sound device includes: a frame, a first vibration system, a magnetic circuit system, and a second vibration system. The magnetic circuit system includes a first magnetic conductive plate, a main magnetic steel, first side magnetic steels, second side magnetic steels, and second magnetic conductive plates. The first magnetic conductive plate includes a magnetic conductive plate body, side plates, and fixing plats. The main magnetic steel, the first side magnetic steels, and the side plates are enclosed to define a first magnetic gap. The second magnetic conductive plates are disposed around the magnetic conductive plate body at intervals and the second magnetic conductive plates are enclosed to define a second magnetic gap. A first voice coil is inserted into the first magnetic gap. A second voice coil is inserted into the second magnetic gap. Compared with the prior art, the sound device improves acoustic performance.

Abstract: A speaker box includes an upper cover plate, a lower cover plate, a speaker unit, and a motor module. The lower cover plate is assembled with the upper cover plate to define an accommodating cavity for accommodating the speaker unit and the motor module. The speaker unit divides the accommodating cavity into a front cavity and a rear cavity. The motor module is disposed on one side of the speaker unit. The upper cover plate includes a top wall and side walls. A length of at least one of the side walls is greater than a length of an orthographic projection thereof. Edge areas of the upper cover plate and edge areas of the lower cover plate are assembled to define compensation cavities. The lower cover plate is of a single metal sheet structure. Therefore, low-frequency performance of the speaker box is improved.

Abstract: The present disclosure relates generally to compounds and compositions thereof for inhibition of ErbB2, including mutant forms of ErbB2, particularly those harboring an Exon 20 mutation, methods of preparing said compounds and compositions, and their use in the treatment or prophylaxis of various cancers, such as lung, glioma, skin, head neck, salivary gland, breast, esophageal, liver, stomach (gastric), uterine, cervical, biliary tract, pancreatic, colorectal, renal, bladder or prostate cancer.

Abstract: A speaker box and an electronic device include an upper cover plate, a lower cover plate, a speaker unit, and a motor module. The speaker box define an accommodating cavity for accommodating the speaker unit and the motor module. The speaker unit divides the accommodating cavity into a front cavity and a rear cavity. The motor module is disposed on one side, distal from the upper cover plate, of the speaker unit. The upper cover plate includes a top wall and side walls. A length of at least one of the side walls of the upper cover plate is greater than a length of orthographic projection of the at least one of the side walls thereof. Edge areas of the upper cover plate and edge areas of the lower cover plate are assembled to define compensation cavities. Therefore, low-frequency performance of the speaker box is improved.

Abstract: This disclosure includes a packet transmission method and apparatus, a device, a system, and a storage medium. When a network fault occurs in a ring network, a first network device receives a first packet, where the first network device is any network device that is in the ring network and that is adjacent to an occurrence position of the network fault, and the ring network includes a loop breakpoint used for blocking packet transmission; the first network device encapsulates a first outer tunnel packet header in the first packet to obtain a second packet, where the first outer tunnel packet header indicates that the second packet is transmitted based on a first tunnel, and a packet transmitted based on the first tunnel is not blocked by the loop breakpoint; and the first network device transmits the second packet based on the first tunnel.

Abstract: Provided are a CLDN18.2-combined antibody and an unfucosylated form thereof. Further provided are a preparation method for the antibody, a conjugate, and a composition containing the antibody, and use thereof in the treatment of a disease such as cancer.

Abstract: Disclosed is a service life test apparatus for production of a diaphragm of a diaphragm compressor. The apparatus includes a bottom frame, a test diaphragm head, an oil pressure boosting assembly, a gas pressure boosting assembly and a driving assembly. The test diaphragm head is installed on the bottom frame and is configured to fix the diaphragm. A support frame is installed on the bottom frame. The oil pressure boosting assembly and the gas pressure boosting assembly are installed at positions of two sides of the support frame. Through the arrangement of the test diaphragm head, the pressure boosting assemblies and the driving assembly, a test load may be exerted onto the diaphragm by using gas pressure and oil pressure, and an actual work environment, the received load magnitude and the load distribution condition of the diaphragm may be simulated, so that test results may be more accurate.

Abstract: The present disclosure discloses a speaker box including a housing having a receiving space and a speaker unit received in the receiving space. The housing and the speaker unit encloses a front cavity and a rear cavity isolated from each other. A mesh disposed in the rear cavity is configured to enclose a filling chamber with the bottom cover for filling sound-absorbing particles. A steel sheet of the bottom cover includes a protrusion connected to the mesh. And, a damping member opposite to the protrusion is sandwiched between the mesh and the yoke; the speaker box in the present disclosure has higher drop reliability.

Abstract: The present disclosure provides an electrolyte additive, an electrolyte, and a battery. The electrolyte additive includes: a first additive and a second additive. The structure of the first additive is as represented by formula 1, and the second additive includes a trinitrile substance.

Abstract: A self-diagnosis and self-repair intelligent coating based on microfluidic technology and a preparation method thereof are provided. Microcapsules are prepared by combining microfluidic T-junction and interfacial polymerization. The wall material of the microcapsules is made of polyurea, and the core material is made of diagnostic agent, repair agent and photoinitiator. Self-diagnosis and self-repair microcapsules are evenly distributed in the coating with silicone resin as matrix.

Abstract: The present invention provides a bending foam assembly and a speaker box including the bending foam assembly. The bending foam assembly includes a foam layer, a first back adhesive layer, an air-permeable isolation layer, and a second back adhesive layer sequentially. The bending foam assembly further includes a third back adhesive layer and a metal foil layer disposed between the foam layer and the first back adhesive layer. The bending foam assembly mounted on a housing of the speaker box through the second back adhesive layer. The bending foam assembly of the present invention avoids the problem of warping in application by adding the metal foil layer.

Abstract: The present disclosure provides the use of ?-1,3-glucan synthase like 5 (GSL5) for the improvement of the clubroot resistance in cruciferous crops as well as related products development, belonging to the area of molecular engineering for plant breeding. GSL5 gene is highly conserved in cruciferous plants and mutation of GSL5 can confer a broad-spectrum and high clubroot resistance to the cruciferous crops, demonstrating that molecular engineering of GSL5 can achieve the improvement of the clubroot resistance in cruciferous crops. The present disclosure provides a key gene and techniques for the improvement of the clubroot disease resistance and durable prevention and control of the clubroot disease in cruciferous crops.

Abstract: The present disclosure relates generally to compounds of Formulae (1-A), (1-B1), (1-C) and ((1-D) and compositions thereof for inhibition of ErbB2, including mutant forms of ErbB2, particularly those harboring an Exon 20 mutation, methods of preparing said compounds and compositions, and their use in the treatment or prophylaxis of various cancers, such as lung, glioma, skin, head neck, salivary gland, breast, esophageal, liver, stomach (gastric), uterine, cervical, biliary tract, pancreatic, colorectal, renal, bladder, prostate, or ovarian cancer.

Abstract: The present disclosure provides a loudspeaker including a frame, a first diaphragm, a first voice coil and a magnetic circuit system, and a first circuit board arranged between the first diaphragm and the first voice coil. The magnetic circuit system includes a magnetic yoke and a first magnet. Compared with the related technology, the loudspeaker of the present disclosure guarantees the concentricity of the frame and the first voice coil, and guarantees the reliability of the bonding between the first circuit board and the first diaphragm.

Abstract: The present disclosure discloses a speaker box including a housing having a receiving space, and a speaker unit mounted on the housing and dividing the receiving space into a front chamber and a rear chamber isolated from each other; a support member is received in the rear chamber, including a first fixation portion fixed to the speaker unit, a second fixation portion fixed to the housing, and a support portion connecting the first fixation portion and the second fixation portion; a sound hole is provided on the housing configured to connect the front chamber with outside; the first fixation portion is fixed to a yoke; the speaker box in the present disclosure has higher fixation strength and higher drop reliability.

Abstract: A self-diagnosis and self-repair intelligent coating based on microfluidic technology and a preparation method thereof are provided. Microcapsules are prepared by combining microfluidic T-junction and interfacial polymerization. The wall material of the microcapsules is made of polyurea, and the core material is made of diagnostic agent, repair agent and photoinitiator. Self-diagnosis and self-repair microcapsules are evenly distributed in the coating with silicone resin as matrix.

Abstract: A device for in-situ hydrogen absorption and hydrolysis hydrogen production based on magnesium-based solid hydrogen storage alloys and use thereof are provided. The device can directly inject hydrogen into a stainless steel tank to allow the magnesium alloy absorbing hydrogen to generate the hydrogenated magnesium alloy. When hydrogen is needed later, water is introduced to hydrolyze the hydrogenated magnesium alloy to produce the hydrogen. In this process, the magnesium alloy does not need to be taken out and exposed to the air after absorbing hydrogen, nor does it need further treatment, such that the hydrogen absorption and hydrolysis hydrogen production of the magnesium alloy can be completed in steps in the same device, which greatly saves manufacturing time and cost of the hydrolysis hydrogen production tank.

Abstract: A speaker box and an electronic device are disclosed. The speaker box includes an upper cover plate including side walls, a first lower cover plate, a speaker unit, a motor module, and second lower cover plates. The speaker unit divides an accommodating cavity defined by upper cover plate and first lower cover plate into front and back cavities. The second lower cover plates are assembled with the upper cover plate to define compensation cavities. A length of at least one of the side walls of the upper cover plate is greater than that of an orthographic projection thereof, so the speaker box is suitable for various electronic devices and has strong adaptability and wide application. The compensation cavities are communicated with the back cavity, which increases an overall space of the back cavity, improves low-frequency performance of the speaker unit, and improves sound production effect of the speaker unit.

Abstract: The present disclosure discloses a sound device including a frame, a magnet system, and a first vibration system and a second vibration system. The magnet system includes a first inner yoke, a main magnet fixed to the first inner yoke, and a second inner yoke fixed to one side of the main magnet away from the first inner yoke; the first vibration system includes a first diaphragm, a first coil surrounding the second inner yoke, and a first FPC electrically connected with the first coil; the first coil includes a first corner portion; the first FPC includes a first fixation portion, a first welding portion welded to the first coil, and a first elastic portion; the first welding portion is located on one side of the first corner portion away from the second inner yoke. The sound device has better magnetic field performance and vibration performance.

Abstract: The invention relates to a method of treating a MEK-associated tumor by administering to a subject in need thereof a therapeutically effective amount of a solid form 8-((2-fluoro-4-(methylthio)phenyl)amino)-2-(2-hydroxyethoxy)-7-methyl-3,4-dihydro-2,7-naphthyridine-1,6(2H,7H)-dione.