Abstract: The invention discloses a method of preparing a high chiral purity lactam intermediate D comprising a step of reducing a compound C to lactam intermediate D in a solvent by hydrogenation reduction using a heavy metal catalyst and a chiral inducer. Brivaracetam can be prepared in a single step using the lactam intermediate D. The synthesis route is short, reaction conditions are mild, post-treatment is simple, reaction yield is high, chiral selectivity is good, and production cost is low. The conversion rate of the compound C in the reaction is 81%, and the DE value of the compound D is more than 99.0%, which is suitable for industrial production.

Abstract: An electric guide rail type conveying system comprises a driving motor, a guide rail, a main transmission case, an auxiliary transmission case, a conveying member, and a moving trolley. Both ends of the conveying member are elastically deformably wound on the first rotating member and the second rotating member of a main transmission case body in two opposite winding direction. Before installation, the conveying member is basically wound on the first rotating member and the second rotating member. When a relative outer portion of the conveying member wound on the first rotating member is separated from the rotating member, a first elastic resilience opposite to one of the two opposite winding direction is generated; with the increase of a portion, separated from the first rotating member, of the conveying member, the first elastic resilience will increase; otherwise, the first elastic resilience will decrease.

Abstract: A touch panel, a display panel, and a display device. The touch panel includes: a substrate; an electrode layer disposed on the substrate. The electrode layer includes a plurality of second electrodes and a plurality of first electrodes arranged to intersect with the second electrodes; and an insulating layer. The second electrodes and the first electrodes are insulated by the insulating layer, and the insulating layer includes an inorganic material layer and an organic material layer. The inorganic material layer is provided with openings at least corresponding to intersections of the second electrodes and the first electrodes, and a part of the organic material layer fills in the openings.

Abstract: A system includes: a ring bus; a plurality of static uninterruptible power supplies (UPSs), each static UPS of the plurality of static UPSs including: at least one battery; an input that is electrically connected to a first external electrical power source; and an output that is electrically connected to a load, and, via a first corresponding choke, to the ring bus; at least one fuel-cell interface converter (FIC) that converts direct current (DC) electrical power to alternating current (AC) electrical power, each FIC of the at least one FIC being electrically connected to the ring bus via a second corresponding choke; and a fuel cell module corresponding to and electrically connected to each FIC, the fuel cell module including a fuel cell.

Abstract: An array substrate has a display area and a non-display area including a first bonding region. The array substrate includes: a plurality of pixel columns disposed in the display area, each of the plurality of pixel columns including a plurality of light-emitting units that are arranged in a second direction, the second direction being perpendicular to a direction in which an edge of the display area proximate to the first bonding region extends; and at least three first power supply input terminals disposed in the first bonding region, each first power supply input terminal being connected to at least one pixel column of the plurality of pixel columns, so as to provide a first power supply signal to the at least one pixel column.

Abstract: A memory adaptive temperature controlling method, a storage device, and a control circuit unit are provided. In this exemplary embodiment, the temperature value is obtained according to the temperature measured by the thermal sensor, and the access speed to be reached is calculated according to the temperature change rate within the specific time range and the adjustment percentage when it is determined that the speed-down or speed-up operation is required to be performed. By adjusting the access speed of the memory storage device in a stepwise manner, the temperature of the memory storage device may be stabilized, thereby striking the balance between the temperature stability and the system performance of the memory storage device.

Abstract: The present disclosure discloses a lamp, including a lamp body and a cover ring sleeved on an outer side of a bottom of the lamp body, the lamp body is rotatable relative to the cover ring; an outer side wall of the bottom of the lamp body is provided with a first limiting member extending horizontally, and the first limiting member is configured to limit a position of the lamp body in a vertical direction; the first limiting member is provided with a second limiting member protruded outwardly; and an inner side wall of the cover ring is provided with a third limiting member corresponding to the second limiting member; in a case that the lamp body is rotated relative to the cover ring, the second limiting member and the third limiting member are interfered with each other to prevent the lamp body from rotating unrestrictedly.

Abstract: A composition containing recombinant collagen with repairing and soothing effects, eye cream containing the composition and preparation method thereof are provided. The composition contains the following raw materials in parts by weight: 1 to 10 parts of recombinant collagen, 1 to 10 parts of sodium hyaluronate, 1 to 5 parts of bifida ferment lysate, 1 to 15 parts of glucosylglycerol, 1 to 10 parts of bisabolol, 1 to 15 parts eight-treasure essence stock solution, and 1 to 15 parts of pink red plum rechecking essence. The composition features with good skin permeability, contributing to its significant effects on repairing skin barriers and relieving skin inflammation, as well as its advantages of low irritation and high safety. Thus, the composition is suitable for people with damaged eye skin and has good market application prospects.

Abstract: An application of a prokaryotic Argonaute protein with only a cleavage activity of a target ribonucleic acid (RNA) in RNA editing is provided. The Argonaute protein is derived from a mesophilic prokaryotes Verrucomimicrobia bacterium, and its amino acid sequence is shown in SEQ ID NO: 1 or a protein with high similarity to SEQ ID NO: 1 and the same function. This protein has binding activity to a single-stranded guide DNA and nuclease activity only to the target RNA complementarily paired with the single-stranded guide DNA. Therefore, the protein can be utilized for in vitro and in vivo targeted RNA editing, providing a new powerful tool for RNA editing.

Abstract: The present invention discloses a extra thick hot rolled H section steel and a production method therefor. The extra thick hot rolled H section steel contains, by mass, the following chemical components: 0.04-0.11% of C, 0.10-0.40% of Si, 0.40-1.00% of Mn, 0.40-1.00% of Cr, 0.10-0.40% of Cu, 0.020-0.060% of Nb, 0.040-0.100% of V, 0.010-0.025% of Ti, 0.010-0.030% of Al, 0.0060-0.0120% of N, not more than 0.015% of P, not more than 0.005% of S, not more than 0.0060% of O, and the balance Fe and trace residual elements, wherein 0.090%?Nb+V+Ti?0.170%, 6.5?(V+Ti)/N?10.5, and 0.30%?CEV?0.48%. The extra thick hot rolled H section steel has a flange thickness of 90 mm-150 mm, has excellent comprehensive mechanical properties, and can well meet the needs for heavy supporting structural parts of high-rise buildings, large squares, bridge structures, etc.

Abstract: A display panel and a method for fabricating the same are provided. The display panel includes a transistor layer. The transistor layer includes an oxide active layer and a first photocatalytic layer that are stacked. The first photocatalytic layer is made of a first material and a second material. A conduction band energy level of the first material is staggered from a conduction band energy level of the second material, or a valence band energy level of the first material is staggered from a valence band energy level of the second material. At least one of the conduction band energy level of the first material and the conduction band energy level of the second material is less than 0 eV.

Abstract: Exemplary methods, apparatuses, and systems include an intelligent boot manager for controlling initialization of components of vehicle computing systems. The intelligent boot manager receives an access request for a vehicle. The intelligent boot manager initializes a set of components of vehicle systems of the vehicle in response to the access request. The intelligent boot manager executes a first portion of code from a read-only memory (ROM) location, the first portion of code configuring a processor to initialize a random-access memory (RAM) location. The intelligent boot manager downloads a set of applications to the RAM location. The intelligent boot manager receives an engine start request for the vehicle, wherein the engine start request is distinct from the access request. The intelligent boot manager initiates an engine start sequence of the vehicle in response to the engine start request.

Abstract: A video recording method includes a first electronic device that records a first shot image in response to a first operation of a user on a preview interface of an application, and records audio corresponding to the first shot image at a first volume. The first electronic device captures a second shot image and audio corresponding to the second shot image in response to a zoom-in operation of the user on the first shot image. The first shot image and the second shot image are consecutive. The first electronic device records the second shot image, and records the audio corresponding to the second shot image at a second volume.

Abstract: A memory management method and an electronic device are disclosed, which are related to the field of electronic device technologies, so as to avoid unnecessary reclaim and check of a frequently accessed physical page for many times, accelerate reclaim efficiency of an operating system on a physical page, and improve the performance of the operating system. The method specifically includes: using, by an electronic device, a plurality of inactive lists and one active list for each memory zone to implement a function of reclaiming a physical page; or using one inactive list and a plurality of active list for each memory zone to implement the function of reclaiming the physical page; or using a plurality of inactive lists and a plurality of active list for each memory zone to implement the function of reclaiming the physical page.

Abstract: A method for adjusting a projection device and a projection system are provided. A projection device is driven to project an image on a projection target. An image-capturing device is driven to perform image capturing toward the projection target to obtain a captured image. The captured image includes a target object corresponding to the image. A projection position of the target object in the captured image is calculated based on the target object and the captured image. An output power of an illumination light source module of the projection device is adjusted based on the projection position and an ambient luminance.

Abstract: An interaction control method includes: acquiring NFC device status information in response to triggering of near field communication NFC, where the NFC device status information includes status information of a master device and status information of a slave device; and providing an interactive function corresponding to the acquired NFC device status information according to a preset mapping relationship, and executing the interactive function in response to a trigger condition to realize information exchange between the master device and the slave device.

Abstract: Compositions are provided for efficient uranium extraction, for example from wastewater, seawater, or other water sources. The compositions can include a functionalized porous organic polymer functionalized with one or more uranium binding moieties, e.g. having a plurality of amidoxime or amidrazone groups covalently attached thereto. The compositions can include covalent organic frameworks, porous aromatic frameworks, and various porous organic polymers, especially those having a hierarchical pore size distribution over a range of pore sizes. The compositions can have functional groups such as amidoxime or an amidrazone covalently attached thereto. The hierarchical pore size distribution can be determined based upon at least 60% of the pore sizes in the range of pore sizes having a pore volume of at least 0.01 cm3 g?1 in the pore size distribution at 77 K. Methods of making the compositions and methods of using the compositions are also provided.

Abstract: The present invention disclosure also relates to a pharmaceutical composition that ccomprises the compound as an active ingredient.

Abstract: Disclosed are a single-material all-plastic pump and a storage bottle applied thereby, mainly including a plastic pressing head, a plastic pump casing, a plastic piston mechanism and a plastic reset spring; the plastic pressing head is in a pressable connection with the plastic pump casing, and has a discharge hole which is connected and communicated with a discharge end of the plastic piston mechanism; the plastic piston mechanism is disposed inside the plastic pressing head and the plastic pump casing, has a feed end which is connected and communicated with a material guide hose, and is used to control the opening and closing of the discharge hole and the material guide hose; the plastic reset spring is sleeved outside the plastic piston mechanism and compressed between the plastic pressing head and the plastic pump casing; and therefore, materials used in the solution are generally plastic, soft rubber, etc.

Abstract: Disclosed are protein-like polymers and uses thereof. The protein-like polymers generally comprise a polymer of formula (FX1) or (FX2). The polymer of formula (FX1) or (FX2) in some aspects inhibits the protein-protein interaction between VCP and mutant-type Huntingtin protein.