Abstract: One embodiment provides a method comprising receiving a first input image and a second input image. Each input image comprises a facial image of an individual. For each input image, a first set of facial regions of the facial image is distinguished from a second set of facial regions of the facial image based on a learning based model. The first set of facial regions comprises age-invariant facial features, and the second set of facial regions comprises age-sensitive facial features. The method further comprises determining whether the first input image and the second input images comprise facial images of the same individual by performing face verification based on the first set of facial regions of each input image.

Abstract: A joint connector of a railway vehicle comprises a concave joint (22) and a convex joint (21). A traction load transfer section and/or a compression load transfer section are provided between the concave joint and the convex joint. The traction load transfer section and the compression load transfer section are detachable assembled in the concave joint. The service life of the concave joint is prolonged due to the arrangement of the traction load transfer section and the compression load transfer section.

Abstract: A fingerprint recognition method and an electronic device are provided. The method includes collecting a touch image in a fingerprint collection region of the fingerprint recognition sensor; configuring a correspondence list; determining whether the touch image is consistent with a pre-stored fingerprint sample; and if the touch image is consistent with the pre-stored fingerprint sample, executing a first preset action corresponding to the fingerprint sample; or if the touch image is inconsistent with the pre-stored fingerprint sample, determining whether the touch image meets a preset condition; and if the touch image meets the preset condition, executing a second preset action, calculating a quantity of times of continuously executing the second action, and if the quantity of times of continuously executing the second preset action is greater than or equal to a third preset value, locking the electronic device within a preset time.

Abstract: A method for preparing a direct-writing polyimide additive manufacturing (AM) material includes (1) conducting ultraviolet curing immediately after the photosensitive polyimide ink is subjected to direct-writing extrusion, to obtain a polyimide precursor formed member; and (2) heat-treating the polyimide precursor formed member obtained in step (1) to obtain the direct-writing polyimide AM material. The direct-writing polyimide AM material obtained by using the method of the present invention has excellent comprehensive properties.

Abstract: A liquid crystal composition containing one or more compounds of formula I, one or more compounds of formula II, and a compound of formula III. The liquid crystal composition provided in the present invention has a lower viscosity and can achieve a fast response while having a moderate dielectric anisotropy ??, an appropriate optical anisotropy ?n, and a high stability to heat and light. A liquid crystal display element or liquid crystal display comprising the liquid crystal composition has properties of a wider nematic phase temperature range, a suitable birefringence anisotropy, a very high resistivity, a good ultraviolet resistance, a high charge retention, and a low vapour pressure, etc.

Abstract: Example connector interfaces such as a Type-C interface and a mobile terminal are disclosed. One example connector interface includes a substrate, a first metal shell, a second metal shell, and an insert mold (I/M) component that are disposed on the substrate. The second metal shell is in a sealed connection to the first metal shell. One end of the I/M component is located in the second metal shell, and the other end of the I/M component penetrates through the second metal shell and is inserted into the first metal shell. The end of the I/M component that is located in the second metal shell is fixedly connected to the second metal shell, so that the I/M component is secured in an insertion direction.

Abstract: One embodiment provides a method comprising identifying a salient part of an object in an input image based on processing of a region of interest (RoI) in the input image at an electronic device. The method further comprises determining an estimated full appearance of the object in the input image based on the salient part and a relationship between the salient part and the object. The electronic device is operated based on the estimated full appearance of the object.

Abstract: Three dimensional printed objects having surface coatings, such as a hydrophobic coating or metalized surface, 3D printed substrates having an outer surface that can be tuned by application of such a coating, and methods for the fabrication of such objects and substrates are described. A surface initiator is incorporated into the 3D substrate during layer-by-layer printing, and the surface coated by surface-initiated atom transfer radical polymerization (SI-ATRP).

Abstract: Disclosed is a DNA sequencing method. The DNA sequencing method provided in the present invention comprises the following steps in order: (1) adding a tag sequence at the 3? terminus of the DNA to be sequenced so as to form a DNA to be sequenced including the tag sequence, the nucleotide sequence of said tag sequence being the reverse complement of the nucleotide sequence of the sequencing primer; (2) mixing the DNA to be sequenced including the tag sequence and the sequencing primer so as to form a product having a 5? terminus double strand and a single main strand; (3) after step (2) is completed, the product is mixed separately with dATP, dCTP, dTTP, and dGTP to obtain four systems, each system is separately added to a single-molecule device modified by a DNA polymerase, and electric signals are read. Experiments verify that the method provided in the present invention performs DNA sequencing and has important application value.

Abstract: One embodiment provides a method comprising estimating a camera pose of an input image and aligning the input image to a desired camera pose based on a feature database. The input image comprises an image of a fine-grained object. The method further comprises classifying the object based on the alignment.

Abstract: One embodiment provides a method for face liveness detection. The method comprises receiving a first image comprising a face of a user, determining one or more two-dimensional (2D) facial landmark points based on the first image, and determining a three-dimensional (3D) pose of the face in the first image based on the one or more determined 2D facial landmark points and one or more corresponding 3D facial landmark points in a 3D face model for the user. The method further comprises determining a homography mapping between the one or more determined 2D facial landmark points and one or more corresponding 3D facial landmark points that are perspectively projected based on the 3D pose, and determining liveness of the face in the first image based on the homography mapping.

Abstract: A supported catalyst used for synthesizing a polyether amine, and a manufacturing method of the catalyst. The catalyst comprises: a porous oxide as a support; Ni, Cu, Pd, and Rh as active components; and one or more of any of Zr, Cr, Mo, Fe, Zn, Sn, Bi, Ce, La, Hf, Sr, Sb, Mg, Be, Re, Ta, Ti, Sc, Ge and related metals as an auxiliary agent. The catalyst can be used in an amination reaction for a large molecular weight polyether polyol, and is particularly active and selective for an amination reaction of a low molecular weight polyether polyol. The catalyst has a simple and economic manufacturing technique and good potential for future applications.

Abstract: The present invention relates to the field of 3D printing technology, and provides a photocurable 3D printing polyimide ink, and a preparation method and application thereof. The photocurable 3D printing polyimide ink includes the following components in the following weight percentages: 40 to 60% of a photocurable polyamic acid, 5 to 40% of an organic solvent, 10 to 50% of a reactive diluent, 1 to 10% of a chain extender, and 1 to 3% of a photoinitiator. The photocurable 3D printing polyimide ink provided by the present invention has excellent mechanical properties, thermal stability, relatively high printing accuracy and relatively low shrinkage; a molded device obtained by 3D printing has excellent properties including high accuracy, great dimensional stability, high strength and corrosion resistance, excellent flexibility, high temperature resistance and relatively low shrinkage. The method for preparing the photocurable 3D printing polyimide ink has a simple process and lower energy consumption.

Abstract: In one embodiment, a method includes training a baseline machine-learning model based on a neural network comprising a plurality of stages, wherein each stage comprises a plurality of neural blocks, accessing a plurality of training samples comprising a plurality of content objects, respectively, determining one or more non-local operations, wherein each non-local operation is based on one or more pairwise functions and one or more unary functions, generating one or more non-local blocks based on the plurality of training samples and the one or more non-local operations, determining a stage from the plurality of stages of the neural network, and training a non-local machine-learning model by inserting each of the one or more non-local blocks in between at least two of the plurality of neural blocks in the determined stage of the neural network.

Abstract: This application relates to a hardware interface, and in particular, to a USB Type-C interface used for an electronic device. In this application, a step is disposed on the USB Type-C interface to place a display screen. This shortens a distance from a front display screen of the electronic device to an edge of the electronic device, and increases a screen-to-body ratio.

Abstract: Described is a terminal function setting method and device for vehicle unlocking, and a mobile terminal. The method comprises: receiving a current request for vehicle unlocking sent by a mobile terminal; determining to perform a scene mode of the current request; acquiring a terminal function setting manner under the scene mode; and performing function setting of the mobile terminal according to the terminal function setting manner.