Abstract: Disclosed is a gearbox for rail vehicle, a bogie for rail vehicle and a rail vehicle. The gearbox for rail vehicle includes a primary gearbox (1) configured to connect with a traction motor, and a secondary gearbox (2) arranged on both sides of the primary gearbox (1) along a longitudinal direction of the rail vehicle, wherein a framework bearing beam is formed by connecting the primary gearbox (1) and the secondary gearbox (2), the primary gearbox (1) is configured to transmit power from the traction motor to the secondary gearbox (2), and the secondary gearbox (2) are configured to transmit power from the primary gearbox (1) to wheelsets of the rail vehicle.

Abstract: A roll-to-roll sintering system for wide inorganic tape material may include a spool on which is wound a continuous tape material comprising a green tape material and a backing layer, a take-up reel, and a heating station including at least one furnace. The heating station is configured to receive an unwound length of the continuous tape. The heating station further includes a first curved section such that the continuous tape material is bent through a radius of curvature of 0.01 m to 13,000 m, and at least two rollers defining the first curved section over which the continuous tape material is bent. The heating station is controlled to provide at least a portion of the heating station with an air free atmosphere, that being at least one of vacuum, hydrogen, or helium.

Abstract: The method for displaying a multimedia resource includes: displaying a first multimedia resource on a multimedia display page; in response to a scene selection instruction, displaying scene representation information respectively corresponding to at least one viewing scene on the multimedia display page in a process of displaying the first multimedia resource; in which the scene representation information is configured to represent a corresponding viewing scene, and enter the corresponding viewing scene to browse a multimedia resource under the corresponding viewing scene in response to the scene representation information being triggered.

Abstract: There is disclosed an improved process for the racemization of (R)-?-ethyl-2-oxo-1-pyrrolidineacetic acid in a solution of alkali hydroxide. The process comprises heating a crystalline suspension of the racemic (RS)-?-ethyl-2-oxo-1-pyrrolidineacetic acid at a temperature from 100° C. to 250° C. to increase the yield and purity. The racemic (RS)-?-ethyl-2-oxo-1-pyrrolidineacetic acid is optically resolved into(S)-?-ethyl-2-oxo-1-pyrrolidineacetic acid and converted to levetiracetam.

Abstract: A gamma tap circuit includes: (i) a first gamma division circuit configured to generate a first gamma tap voltage by performing voltage division of an upper gamma tap voltage and a lower gamma tap voltage, in-sync with a first clock signal CK1 and a first complementary clock signal CK1b, which is 180° out-of-phase relative to CK1, (ii) a second gamma division circuit configured to generate a second gamma tap voltage by performing voltage division of the upper gamma tap voltage and the first gamma tap voltage, in-sync with a second clock signal CK2 and a second complementary clock signal CK2b, which is 180° out-of-phase relative to CK2, and (iii) a third gamma division circuit configured to generate a third gamma tap voltage by performing voltage division of the first gamma tap voltage and the lower gamma tap voltage, in response to CK2 and CK2b, which have a lower frequency relative to CK1 and CK1b.

Abstract: Provided is a method for playing back a multimedia resource. The method includes: playing back the multimedia resource on a playback interface; playing back the multimedia resource in a multi-speed mode in response to a first multi-speed set operation on the playback interface, wherein the multi-speed mode corresponds to a reference playback multi-speed; and continuously playing back, in response to a progress adjust operation on the playback interface, the multimedia resource in the multi-speed mode using a playback progress corresponding to the progress adjust operation as a playback start point.

Abstract: A method for playing a video, an electronic device and a non-transitory computer-readable storage medium are provided. The method includes: playing, in response to a fast multiplied-speed playing operation performed on a playing interface of the video when the video is being played, the video according to a first multiplied playing speed which is associated with the fast multiplied-speed playing operation; and playing, in response to a multiplied-speed adjustment operation performed on the playing interface when the video is being played according to the first multiplied playing speed, the video according to a second multiplied playing speed which corresponds to the multiplied-speed adjustment operation, wherein the second multiplied playing speed is different with the first multiplied playing speed.

Abstract: An organic light-emitting diode (OLED) display substrate, a manufacturing method thereof and a display panel are provided. The OLED display substrate has pixel regions and includes a base substrate and a pixel defining layer disposed on the base substrate; in regions of the pixel defining layer corresponding to the pixel regions, accommodation parts penetrating the pixel defining layer are disposed, and the pixel defining layer is further provided with guide parts disposed corresponding to the accommodation parts, the guide parts are located on a periphery of the corresponding accommodation parts and formed by recessed areas which are formed on a side of the pixel defining layer away from the base substrate, the recessed areas do not penetrate the pixel defining layer, and an orthographic projection of the guide part on the base substrate is directly coupled to an orthographic projection of the corresponding accommodation part on the base substrate.

Abstract: A cathode configured for a solid-state battery includes a body having grains of inorganic material sintered to one another, wherein the grains comprise lithium. A thickness of the body is from 3 ?m to 100 ?m. The first major surface and the second major surface have an unpolished granular profile such that the profile includes grains protruding outward from the respective major surface with a height of at least 25 nm and no more than 150 ?m relative to recessed portions of the respective major surface at boundaries between the respective grains.

Abstract: There is disclosed a process for the optical resolution of (RS)-?-ethyl-2-oxo-1-pyrrolidineacetic acid with a chiral amine in a solvent comprising an alkyl alcohol of C4-C6 to produce (S)-?-ethyl-2-oxo-1-pyrrolidineacetic acid. The (S)-?-ethyl-2-oxo-1-pyrrolidineacetic acid is converted to (S)-?-ethyl-2-oxo-1-pyrrolidineacetamide.

Abstract: There is disclosed a process for the optical resolution of (RS)-?-ethyl-2-oxo-1-pyrrolidineacetic acid with a chiral amine in a mixed solvent of aromatics and alkyl alcohol of C4-C8 to produce (S)-?-ethyl-2-oxo-1-pyrrolidineacetic acid. The (S)-?-ethyl-2-oxo-1-pyrrolidineacetic acid is converted to (S)-?-ethyl-2-oxo-1-pyrrolidineacetamide.

Abstract: There is disclosed a process for the optical resolution of (RS)-?-ethyl-2-oxo-1-pyrrolidineacetic acid with a chiral amine and an optically inactive amine to form an ionic liquid in a solvent to produce (S)-?-ethyl-2-oxo-1-pyrrolidineacetic acid. The (S)-?-ethyl-2-oxo-1-pyrrolidineacetic acid is converted to (S)-?-ethyl-2-oxo-1-pyrrolidineacetamide.

Abstract: The present disclosure provides a display panel, a display device, and a method for manufacturing a display panel. The display panel includes a pixel unit. The pixel unit includes a plurality of sub-pixel units. Each of the plurality of sub-pixel units includes at least one transparent film layer. Each of the plurality of sub-pixel units is divided into a light-emitting area and a light-transmitting area, and the quantity of the transparent film layer in the light-transmitting area is smaller than the quantity of the transparent film layer in the light-emitting area.

Abstract: There is disclosed a process for the production of levetiracetam by crystallizing levetiracetam in an aqueous solution, optionally in the presence of a water-soluble solvent. The product of levetiracetam contains no residual organic solvent.

Abstract: An electrode assembly short circuit identification method includes: during charging, according to preset sampling time points, sequentially acquiring a voltage of an electrode assembly at each of the sampling time points; judging whether the electrode assembly has a continuous voltage drop according to the voltage acquired at each of the sampling time points; and determining whether the electrode assembly has a short circuit according to a judgment result.

Abstract: An array substrate includes: a base; light shield layers and a first auxiliary electrode that are disposed on the base; at least one insulating layer covering the light shield layers and the first auxiliary electrode; first electrodes that are disposed on the at least one insulating layer, a conductive connection portion; a pixel definition layer defining light-emitting regions and covering the conductive connection portion; organic light-emitting layers disposed on the first electrodes and located in the light-emitting regions defined by the pixel definition layer; and at least one second electrode covering the pixel definition layer and the organic light-emitting layers. A second electrode is electrically connected to the conductive connection portion through a via that penetrates through the pixel definition layer. The conductive connection portion is electrically connected to the first auxiliary electrode through a via that penetrates through the at least one insulating layer.

Abstract: A composite ceramic including: a lithium garnet major phase; and a grain growth inhibitor minor phase, as defined herein. Also disclosed is a method of making composite ceramic, pellets and tapes thereof, a solid electrolyte, and an electrochemical device including the solid electrolyte, as defined herein.

Abstract: A display substrate having a plurality of subpixels is provided. A respective one of the plurality of subpixels includes a light emitting element; a first thin film transistor configured to driving light emission of the light emitting element; and a light emitting brightness value detector. The light emitting brightness value detector includes a second thin film transistor; and a photosensor electrically connected to the second thin film transistor and configured to detect a light emitting brightness value. The display substrate further includes a silicon organic glass layer on a side of at least one of the first thin film transistor or the second thin film transistor away from a base substrate; and the photosensor is on a side of the silicon organic glass layer away from the base substrate.

Abstract: There is disclosed a process for the production of brivaracetam by converting an intermediate of the formula: to an intermediate of the formula: and then to brivaracetam; wherein R1 and R2 are each independently selected from the group consisting of hydrogen, alkali, alkaline earth metal, alkyl, and a mixture thereof.

Abstract: A display substrate, includes a plurality of subpixels arranged in a matrix. Each subpixel is provided with a pixel driver circuit that includes a plurality of thin film transistors and a storage capacitor. The storage capacitor of a present subpixel among the plurality of subpixels and the storage capacitor of an adjacent subpixel adjacent to the current subpixel are disposed in a shared capacitance region of the present subpixel and the adjacent subpixel, and the storage capacitor of the present subpixel and the storage capacitor of the adjacent subpixel are stacked.