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.

Abstract: Provided herein is a compound of the Formula I: or a pharmaceutically acceptable salt thereof, wherein R1, R2, R3, R4, R5, R6, R7 and L are as defined herein, for the treatment of BRAF-associated diseases and disorders, including BRAF-associated tumors.

Abstract: A medium voltage grid-connected photovoltaic inverter system and a photovoltaic power generation system including the same are provided. The medium voltage grid-connected photovoltaic inverter system includes a photovoltaic inverter, a medium voltage transformer, a switchgear, and an inverter grid-connected controller. A low voltage side of the medium voltage transformer is connected to an alternating current output terminal of the photovoltaic inverter. An input terminal of the switchgear is connected to a high voltage side of the medium voltage transformer, and each phase of the switchgear includes two output terminals each for being connected to another switchgear. The inverter grid-connected controller is connected to a controlled terminal of the switchgear, and is configured to control the switchgear to switch off/on, so that the medium voltage grid-connected photovoltaic inverter system is disconnected from or connected to a grid.

Abstract: The present disclosure relates to compounds and compositions for inhibition of Bcr-Abl tyrosine kinases, methods of preparing said compounds and compositions, and their use in the treatment of various cancers, such as chronic myeloid leukemia (CML).

Abstract: The present disclosure provides a loudspeaker, which includes a frame, a first diaphragm supported on the frame, a first voice coil that drives the first diaphragm to vibrate and sound, a magnetic circuit system with a first magnetic gap, and a first circuit board set between the first diaphragm and the first voice coil. Compared with the related technology, the loudspeaker of the present disclosure guarantees the reliability of the bonding of the first circuit board, the first voice coil and the first diaphragm.

Abstract: The present disclosure discloses a sound device including a frame, a magnet system, a first vibration system and a second vibration system. The magnet system includes a first inner yoke, a main magnet, a side magnet, a first side yoke, and a connection portion. A first coil of the first vibration system is inserted in to a first magnetic gap. A first FPC of the first vibration system includes a first fixation portion, a first welding portion welded to the first coil, and a first elastic portion connecting the first fixation portion with the first welding portion; the first elastic portion is spaced apart from the first side yoke along a vibration direction; the first welding portion is fixed to a side of the first side yoke facing the first diaphragm. The sound device has better magnetic field performance and vibration performance.

Abstract: Provided herein are 7-((3,5-dimethoxyphenyl)amino)quinoxaline derivatives of the general Formula I; and stereoisomers and pharmaceutically acceptable salts or solvates thereof, in which X2 is N and Ring A, Ring B, Ring C, X1, X3, R1, L, and W have the meanings given in the specification, which are inhibitors of FGFR1, FGFR2, FGFR3 and/or FGFR4 and are useful in the treatment and prevention of diseases which can be treated with an FGFR inhibitor, such as e.g. cancer, e g. bladder cancer, brain cancer, breast cancer, cholangiocarcinoma, head and neck cancer, lung cancer, multiple myeloma, rhabdomyosarcoma, urethral cancer and uterine cancer. The present description discloses the preparation of exemplary compounds as well as pharmacological data thereof (e.g. pages 276 to 308; examples 1 to 30; examples A to E; tables CA to EE). An exemplary compound is e.g. 1-(3-(4-(4-(7-((3,5-dimethoxy phenyl) amino)quinoxalin-2-yl)-1H-pyrazol-1-yl)piperidine-1-carbonyl) azetidin-1-yl)prop-2-en-1-one (e.g. example 1).