Abstract: Provided are an auxiliary alloy casting piece, a high-remanence and high-coercive force NdFeB permanent magnet, and preparation methods thereof. The method for preparing the auxiliary alloy casting piece includes the following steps: providing an auxiliary alloy material including, by mass percentage, 40% to 45% of Pr, 1% to 2% of Co, 0.5% to 1% of Ga, 0.6% to 0.8% of B, 0.1% to 0.2% of V, 0.3% to 0.7% of Ti, and a balance of Fe; smelting the auxiliary alloy material to obtain a smelted material; and subjecting the smelted material to a quick-setting casting to obtain the auxiliary alloy casting piece; where the quick-setting casting includes a refining and a casting in sequence.

Abstract: Provided are an audio/video processing method and apparatus, a device, and a storage medium. The method comprises: displaying text data corresponding to an audio/video to be edited, wherein the text data has a mapping relation with an audio/video timestamp of said audio/video; displaying said audio/video according to a time axis track; in response to a preset operation triggered for target text data in the text data, determining an audio/video timestamp corresponding to the target text data as a target audio/video timestamp; and processing, on the basis of the preset operation, an audio/video clip corresponding to the target audio/video timestamp in said audio/video.

Abstract: The present invention relates to a method for screening mobile terminal visual attention abnormalities in children based on multimodal data learning. A calibration video and a testing video are set up, and a head-face video of children while watching the calibration video and the testing video on smartphones is recorded, respectively. An eye-tracking estimation model is constructed to predict the fixation point location from the head-face video corresponding to the testing video frame by frame and to extract the eye-tracking features. Facial expression features and head posture features are extracted. A Long Short-Term Memory (LSTM) network is used to fuse different modal features and realize the mapping from multimodal features to category labels. In the testing stage, the head-face video of children to be classified while watching the videos on smartphones is recorded, and the features are extracted and input into the post-training model to determine whether they are abnormal.

Abstract: Embodiments provide a method and an apparatus for determining speech similarity, and a program product, which relate to speech technology. The method includes: playing exemplary audio, and acquiring evaluation audio of a user, where the exemplary audio is audio of specified content that is read by using a specified language; acquiring a standard pronunciation feature corresponding to the exemplary audio, and extracting, from the evaluation audio, an evaluation pronunciation feature corresponding to the standard pronunciation feature, where the standard pronunciation feature is used to reflect a specific pronunciation of the specified content in the specified language; and determining a feature difference between the standard pronunciation feature and the evaluation pronunciation feature, and determining similarity between the evaluation audio and the exemplary audio according to the feature difference.

Abstract: The present disclosure relates to a DNA methylation markers combination for bladder cancer risk stratification, which includes methylation regions as denoted by any one or more of SEQ ID NOS:1-22 or any one or more of complementary sequences thereof. The present disclosure further provides a clinical application of the three-class stratification mode before operation based on the selected appropriate molecular marker combinations, to promote the rational use of current diagnosis and treatment methods, consequently patients with negative BC can avoid excessive invasive cystoscopy, while HR-NMIBC or MIBC can expedite diagnosis and surgical operations, and the definite LMR-NMIBC patients can follow standard diagnostic modalities.

Abstract: Disclosed herein is a fiber optic system including at least one fiber optic cable assembly having a multimode optical fiber for communication of an optical data signal at an operating wavelength and a devices having a single-mode fiber stub with a mode field diameter within 20% of the mode field diameter of the fundamental mode of the multimode optical fiber at the operating wavelength. The single-mode fiber stub is secured to a ferrule, and a center of a core of the single-mode fiber stub is within 0.5 ?m of a center of the ferrule. An end of the single-mode fiber stub that extends to or beyond the back end of the ferrule and forms an optical connection with the multimode optical fiber where the center of the single-mode fiber stub is within 2 ?m of a center of the multimode optical fiber.

Abstract: The present application provides a process and system for extraction of rare earth elements using a long-term acid soak. In particular the present application provides a process for extracting rare earth elements from an ore by: (a) soaking the ore with a strong acid at a temperature of less than about 100° C. for at least 1 day; and (b) leaching the acid-soaked ore with an aqueous leaching solution to obtain a leachate comprising the rare earth elements. Optionally, a small amount of water is added to the acid during the acid soaking step and/or an additive comprising one or more metal ions is added to the acid during the acid soaking step.

Abstract: The present application provides a process and system for recovery of rare earth elements. In particular, the present application provides a process for obtaining a precipitate of rare earth elements (REE), comprising: (a) obtaining an acidic composition comprising the REE (such as, for example, a pregnant leach solution); (b) adding a reducing agent to the acidic composition and adjusting the pH with a basic agent; (c) adding oxalate directly to the composition formed in step (b) and mixing to form an REE oxalate precipitate; (d) removing the REE oxalate precipitate from the mixture of step (c).

Abstract: A flexible substrate, a flexible display panel, and a manufacturing method are provided. The method of manufacturing the flexible display panel includes forming a first organic layer on a substrate; determining a bending area on the first organic layer and forming an adhesion layer on a part of the first organic layer, located in the bending area; forming an inorganic layer on the adhesion layer and on the first organic layer; forming a second organic layer on the inorganic layer; forming a thin-film transistor layer, an organic light-emitting diode layer, and an encapsulation layer on the second organic layer in sequence; removing the substrate; and removing the part of the first organic layer, located in the bending area, and the adhesion layer so that the flexible display panel is formed.

Abstract: The disclosure relates to the technical field of electrolysis cells, and in particular to a solid oxide electrolysis cell (SOEC) and a preparation method thereof. The SOEC provided by the disclosure adopts an n-type TiO2 layer and a p-type La0.6Sr0.4Co0.2Fe0.8O3?? layer as an electrolyte layer. Although the n-type TiO2 and the p-type La0.6Sr0.4Co0.2Fe0.8O3?? have both ionic and electronic conductivities, the electric field effect of a PN junction between the two layers can effectively cut off the transmission of intermediate layer electrons and enable ions to rapidly pass through. The SOEC can effectively avoid short circuit and exhibit excellent performance. Furthermore, the above structure allows the SOEC to have a stable performance output, and the SOEC can be produced on a large scale due to low material cost.

Abstract: A flexible substrate, a flexible display panel, and a manufacturing method are provided. The method of manufacturing the flexible display panel includes forming a first organic layer on a substrate; determining a bending area on the first organic layer and forming an adhesion layer on a part of the first organic layer, located in the bending area; forming an inorganic layer on the adhesion layer and on the first organic layer; forming a second organic layer on the inorganic layer; forming a thin-film transistor layer, an organic light-emitting diode layer, and an encapsulation layer on the second organic layer in sequence; removing the substrate; and removing the part of the first organic layer, located in the bending area, and the adhesion layer so that the flexible display panel is formed.

Abstract: An organic light-emitting diode (OLED) display panel, a manufacturing method thereof, and a display device are provided. The OLED display panel includes a first inorganic encapsulation layer, a buffer layer disposed on the first inorganic encapsulation layer, a metal particle film layer prepared on the buffer layer and converted to be a scattering layer under an energy modification of the buffer layer, and an organic encapsulation layer disposed on the scattering layer. Thus, a metal surface plasmon resonance effect is utilized to improve light generated by decay of excitons in the emissive layer and extraction of incident light from an absorbing active layer, thereby enhancing the external quantum efficiency.

Abstract: A display panel and a preparation method therefor, and a display device are disclosed. The display panel includes a first base layer; a barrier layer, disposed on the first base layer; a second base layer, disposed on the barrier layer; a first high-temperature-resistant adhesive layer, configured to adhere the first base layer to the barrier layer; and a second high-temperature-resistant adhesive layer, configured to adhere the barrier layer to the second base layer. Beneficial effects: An inorganic high-temperature-resistant adhesive layer is coated between the base layer and the barrier layer, so that the base layer can be adhered to the barrier layer more firmly, to improve bending performance of the base layer, and reduce a risk of a fracture between the base layer and the barrier layer, thereby improving a bending capability of the flexible display panel, and improving a product yield, controllability, and endurance.

Abstract: A display panel and a preparation method therefor, and a display device are disclosed. The display panel includes a first base layer; a barrier layer, disposed on the first base layer; a second base layer, disposed on the barrier layer; a first high-temperature-resistant adhesive layer, configured to adhere the first base layer to the barrier layer; and a second high-temperature-resistant adhesive layer, configured to adhere the barrier layer to the second base layer. Beneficial effects: An inorganic high-temperature-resistant adhesive layer is coated between the base layer and the barrier layer, so that the base layer can be adhered to the barrier layer more firmly, to improve bending performance of the base layer, and reduce a risk of a fracture between the base layer and the barrier layer, thereby improving a bending capability of the flexible display panel, and improving a product yield, controllability, and endurance.

Abstract: Disclosed is a physical-chemical composite inhibitor for controlling spontaneous combustion of low-rank coal, and methods of preparing and using the same. The composite inhibitor consists of a chelate and attapulgite, the chelate is generated by chelation of proanthocyanidin with calcium chloride. The composite inhibitor has moisture-absorbing and moisture-retaining effect, and can reduce water dissipation at low temperature. A stable oxide insulating layer such as MgO and Al2O3 insulating layer can be formed at high temperature, which can block a coal body from contacting with oxygen. In addition, the composite inhibitor can capture hydroxyl free radicals generated during the chain-cycle reaction and destroy peroxide free radicals, and can also interact with an active moiety in coal to form a stable structure such as ether linkage and hydrogen bonding, thereby achieving permanent inhibition of low-rank coal.

Abstract: Disclosed is a physical-chemical composite inhibitor for controlling spontaneous combustion of low-rank coal, and methods of preparing and using the same. The composite inhibitor consists of a chelate and attapulgite, the chelate is generated by chelation of proanthocyanidin with calcium chloride. The composite inhibitor has moisture-absorbing and moisture-retaining effect, and can reduce water dissipation at low temperature. A stable oxide insulating layer such as MgO and Al2O3 insulating layer can be formed at high temperature, which can block a coal body from contacting with oxygen. In addition, the composite inhibitor can capture hydroxyl free radicals generated during the chain-cycle reaction and destroy peroxide free radicals, and can also interact with an active moiety in coal to form a stable structure such as ether linkage and hydrogen bonding, thereby achieving permanent inhibition of low-rank coal.

Abstract: Disclosed is a compact device for wavelength-division multiplexing applications. In particular, disclosed is a device that includes a housing and a core at least partially positioned within the housing. The core includes a first single fiber stub, a second single fiber stub, and at least one functional layer positioned between a first fiber of the first single fiber stub and a second fiber of the second single fiber stub. The at least one functional layer is configured to: (i) permit routing of a transmission signal of a multiplexed signal along an optical path from the first fiber stub to the second fiber stub, and (ii) prevent routing of a non-transmission signal of the multiplexed signal along the optical path from the first fiber stub to the second fiber stub. A distance between a first ferrule of the first fiber stub and a second ferrule of the second fiber stub is less than about 0.05 mm.

Abstract: Disclosed is a compact device for wavelength-division multiplexing applications. In particular, disclosed is a device that includes a housing and a core at least partially positioned within the housing. The core includes a first single fiber stub, a second single fiber stub, and at least one functional layer positioned between a first fiber of the first single fiber stub and a second fiber of the second single fiber stub. The at least one functional layer is configured to: (i) permit routing of a transmission signal of a multiplexed signal along an optical path from the first fiber stub to the second fiber stub, and (ii) prevent routing of a non-transmission signal of the multiplexed signal along the optical path from the first fiber stub to the second fiber stub. A distance between a first ferrule of the first fiber stub and a second ferrule of the second fiber stub is less than about 0.05 mm.

Abstract: The loopback apparatus disclosed herein is used with an optical fiber system having an optical fiber cable. The loopback apparatus includes an optical fiber having input and output ends and an output optical fiber having input and output ends. The loopback apparatus also includes an optical system that defines an optical path and that is configured to optically couple the output end of the input optical fiber with the input end of the output optical fiber over the optical path. The loopback apparatus also includes a thin-film filter disposed in the optical path and configured to provide a select amount of attenuation for light traveling over the optical path. The loopback apparatus can be plugged into and unplugged from the optical fiber cable. Loopback methods for measuring the performance of the optical fiber system using the loopback apparatus are also disclosed.

Abstract: An optical signal isolation device comprising a common port, an isolated diagnostic port, an integrated circulator comprising an input circulator fiber, an output circulator fiber, and a fiber-to-fiber optical coupler configured to couple an isolated optical signal propagating along the input circulator fiber to the output circulator fiber for propagation along the output circulator fiber, a multi-fiber alignment body that secures at least portions of each of the multi-signal fiber, the isolated diagnostic signal fiber, the input circulator fiber, and the output circulator fiber, and a wavelength-selective optical assembly including an optical signal filter, fiber-to-filter focusing optics, and a communications signal reflector. The integrated circulator and the wavelength selective optical assembly are configured such that the communications component is retro-reflected back to the common port and the diagnostic component is passes out of the isolated diagnostic port.