Abstract: Disclosed is a method for preparing an organic carboxylic ester by using a combined catalyst of an aryl bidentate phosphine ligand. The method includes subjecting a terminal olefin, carbon monoxide, and an alcohol to a hydroesterification reaction in the presence of a combined catalyst of a palladium compound, an aryl bidentate phosphine ligand, and an acidic additive, to generate an organic carboxylic ester having one more carbon atom than the terminal olefin.

Abstract: The invention discloses a clamping-cutting-grasping multi-functional engineering attachment applying single-degree-of-freedom shape-shifting mechanism, with a symmetrical structure, including a clamping and cutting device, a grasping device, and a separating and deforming device, and further includes two hydraulic cylinders, one base, two separation bases, a driving hydraulic cylinder, hydraulic scissors, a grasping connecting rod, a grasping claw, a separating connecting rod, a base guide rod, a base slider, a separating slider, first connecting rod, second connecting rod and separation slider track groove. The invention uses a double slider mechanism to achieve the relative movement between the grasping device versus the clamping and shearing device, and also realizes a fast conversion from clamping and cutting device to the grasping device, all the work requirements being satisfied under each working state without motion interference.

Abstract: Provided is an isolated antibody or antigen binding fragment thereof. The isolated antibody or antigen binding fragment thereof can be used to prepare a medicament for treating tumors.

Abstract: The present disclosure describes a method, device, and storage medium for controlling a virtual object. The method includes obtaining, by a device, a first virtual feature and a second virtual feature, a virtual object in a virtual scene comprising the first virtual feature and the second virtual feature. The device includes a memory storing instructions and a processor in communication with the memory. The method further includes obtaining, by the device, a first physical force matching the first virtual feature and a second physical force matching the second virtual feature; and controlling, by the device according to the first physical force, the first virtual feature to perform a first action, and controlling, according to the second physical force, the second virtual feature to perform a second action.

Abstract: Disclosed in the present invention are a naphthalenesulfonamide compound, a preparation method, and an application. The naphthalenesulfonamide compound provided by the present invention can interfere with Keap1-Nrf2 binding and activate Nrf2 to relieve inflammatory damage and improve an inflammatory microenvironment, has a potential anti-inflammatory activity, and can be used for preparing an anti-inflammatory drug for inflammatory damage of various inflammation-related diseases, including chronic obstructive pulmonary disease (COPD), Alzheimer's disease, Parkinson's disease, atherosclerosis, chronic kidney disease (CKD), diabetes, intestinal Inflammations, rheumatoid arthritis, etc.

Abstract: Embodiments provide a power adjustment method and an access network device, and the embodiments relate to the field of communication technologies. A target power increase value is adaptively determined based on a target key characteristic of a target cell, so that a cell coverage loss and a cell capacity loss caused by channel shutdown are compensated for, and a good energy-saving effect is obtained. The access network device blocks transmit channels that are of some of a plurality of antennas and that correspond to the target cell. Then, the access network device obtains the target key characteristic of the target cell, and determines the target power increase value based on the target key characteristic. The access network device increases, based on the target power increase value, transmit power of the access network device corresponding to the target cell or a target user.

Abstract: An application management method, a terminal, a computer readable storage medium, and a computer program product including an instruction are disclosed. The method includes: suspending a background application when the background application meets a preset condition and disconnecting a communication link between the background application and a communications module when suspending the background application. Applicable to management of background applications on terminals, this method is intended to resolve a problem existing in the prior art that a battery life of the terminal is reduced when a large quantity of applications run in the background.

Abstract: A detection chip and a detection system are provided. The detection chip includes a sample adding opening and at least one detection branch structure, each of the at least one detection branch structure includes a detection portion, the detection portion includes a detection groove and a reaction reagent, the detection groove is in connection with the sample adding opening, the reaction reagent is contained in the detection groove, and the detection portion is configured to allow optical detection to be performed on the reaction reagent in the detection groove.

Abstract: A method for preventing, alleviating and/or treating idiopathic pulmonary fibrosis, which comprises administering an effective amount of a compound represented by formula (I), or a pharmaceutically acceptable salt, ester, stereoisomer, polymorph, solvate, N-oxide, isotope-labeled compound, metabolite or prodrug thereof to an individual in need thereof.

Abstract: An information management system supports the concurrent transfer of multiple extents from a client computing device having one or more files stored in a primary storage device. The client computing device determines whether one or more of the files are extent-eligible by comparing a file size of a file with a predetermine file size threshold. Based on the comparison, the client computing device determines that the file is extent-eligible, and determines a plurality of extents for the extent-eligible file. The client computing device may then concurrently transmit one or more of the extents of the extent-eligible file to one or more nodes in communication with the client computing device. The one or more nodes may index the received extents for later retrieval during a restore operation of the extent-eligible file. The one or more nodes may also validate the extents to ensure that the extents are not corrupted.

Abstract: A backlight control device, a backlight control method, and a display device that avoids image shake are described. The backlight control device comprises: a driving detection component that detects a scan state of a gate driving circuit of a display module and outputs a detection signal, and a backlight control component that controls intermittent closing of a backlight between frames based to the detection signal.

Abstract: A method for preparing a CKO/KI animal model by using Cas9 technology includes a Cas9 protein expressed and purified in vitro, high-efficiency sgRNA(s) screened by sgRNA cleavage efficiency test on embryos in advance, and single-stranded DNA as targeting vector(s) are mixed with Cas9 protein and sgRNA(s) and then subjected to embryo injection and transplantation; mice born after transplantation are marked as F0 and the genotype identification of F0 is carried out; sexually mature F0 with the correct genotype are bred, and the offspring mice thereof are marked as F1; and the F1 mice are analyzed and verified, and the F1 mice with the correct genotype are the prepared CKO/KI animal model.

Abstract: The present disclosure describes a method, device, and storage medium for controlling a virtual object. The method includes obtaining, by a device, a first virtual feature and a second virtual feature, a virtual object in a virtual scene comprising the first virtual feature and the second virtual feature. The device includes a memory storing instructions and a processor in communication with the memory. The method further includes obtaining, by the device, a first physical force matching the first virtual feature and a second physical force matching the second virtual feature; and controlling, by the device according to the first physical force, the first virtual feature to perform a first action, and controlling, according to the second physical force, the second virtual feature to perform a second action.

Abstract: The present disclosure relates to the technical field of display. Disclosed are an array substrate and a preparation method therefor, and a display panel and a display device. The array substrate includes: a substrate; multiple gate lines, wherein the gate lines are located on the substrate, and extend along a first direction; multiple data lines, wherein the data lines are located on the substrate, and extend along a second direction, and the gate lines and the data lines intersect to define multiple pixel areas; and a touch-control electrode wiring wherein the touch-control electrode wiring has the same direction as that of the gate lines, and is arranged insulated from the gate lines on a different layer, and the orthographic projection of the touch-control electrode wiring on the substrate at least has an overlapping area with the orthographic projection of part of the gate lines on the substrate.

Abstract: An array substrate, a method for fabricating the same, and a display device are provided. The array substrate includes: a base substrate; touch electrode wiring including a first conductive layer and a second conductive layer, where the first conductive layer is between the base substrate and the second conductive layer, the second conductive layer includes at least one first via hole to expose the first conductive layer, and the first conductive layer has a higher electrical conductivity than that of the second conductive layer; a planarization layer on the second conductive layer, where the planarization layer includes at least one first touch electrode contact hole; and touch electrode on the planarization layer, where the touch electrode is connected with the first conductive layer through the first touch electrode contact hole and the first via hole.

Abstract: A pig intestinal tract epithelium cell line with METTL3 gene knocked out and a construction method therefor. A gene interference vector for METTL3 form a pig is also provided.

Abstract: A method of driving a display panel, a driving circuit of a display panel, and a display panel are disclosed. The display panel includes a multiplexing unit and a plurality of pixels arranged in an array of M rows and N columns, the multiplexing unit includes a plurality of thin film transistors, and each thin film transistor includes a gate electrode applied with a multiplexing unit gate signal. The method includes: acquiring a plurality of data signals for driving i-th row of pixels, where 1?i?M; generating multiplexing unit gate signals for respective thin film transistors of the multiplexing unit based on the plurality of data signals; and applying the multiplexing unit gate signals to gate electrodes of the respective thin film transistors, so that the respective thin film transistors are turned on or turned off. The multiplexing unit gate signals change according to changes of the plurality of data signals.

Abstract: Provided are a targeting vector, a nucleic acid composition, and a method for constructing a liver-injured mouse model. The targeting vector includes a first expression cassette and a second expression cassette located downstream of the first expression cassette, the first expression cassette has the following elements connected in series in sequence: a liver-specific promoter, a tetracycline transcription activation regulating factor, and a first polyA; and the second expression cassette has the following elements connected in series in sequence: a second polyA, a mouse prourokinase activator encoding gene, and a tetracycline-inducible promoter. The liver-injured mouse model constructed with this targeting vector has the phenotype of spontaneously generating the liver injury and aggravating the liver injury by induction, which provides liver-injured mouse models for studies of liver diseases.