Abstract: A physiological signal prediction method includes: collecting a video file, the video file containing long-term videos, and contents of the video file containing data for a face of a single person and true physiological signal data; segmenting a single long-term video into multiple short-term video clips; extracting, by using each frame of image in each of the short-term video clips, features of interested regions for identifying physiological signals so as to form features of interested regions of a single frame; splicing, for each of the short-term video clips, features of interested regions of all fixed frames corresponding to the short-term video clip into features of interested regions of a multi-frame video, and converting the features of the interested regions of the multi-frame video into a spatio-temporal graph; inputting the spatio-temporal graph into a deep learning model for training, and using the trained deep learning model to predict physiological signal parameters.

Abstract: The present disclosure provides a touch screen and a manufacturing method thereof, a display substrate, and a touch display device. The touch screen includes: at least one metal mesh layer and electrostatic leading lines, wherein each metal mesh layer includes a plurality of electrodes insulated from each other, and the electrostatic leading lines extend among the plurality of electrodes of the at least one metal mesh layer and are connected to grounding wires, wherein the electrostatic leading lines are arranged to be insulated from the plurality of electrodes.

Abstract: A parallel processing unit employs an arithmetic logic unit (ALU) having a relatively small footprint, thereby reducing the overall power consumption and circuit area of the processing unit. To support the smaller footprint, the ALU includes multiple stages to execute operations corresponding to a received instruction. The ALU executes at least one operation at a precision indicated by the received instruction, and then reduces the resulting data of the at least one operation to a smaller size before providing the results to another stage of the ALU to continue execution of the instruction.

Abstract: A method, an apparatus, a device and a storage medium for processing an image are provided. The method includes: acquiring a target video including a target image frame and at least one image frame of a labeled target object; based on the labeled target object in the at least one image frame, determining a search area for the target object in the target image frame; based on the search area, determining center position information of the target object; based on a labeled area in which the target object is located and the center position information, determining a target object area; and based on the target object area, segmenting the target image frame.

Abstract: The present invention provides a tapered side-polished fiber-optic biosensor (FOBS) and a method for preparing a tapered side-polished fiber (SPF). The biosensor includes a broadband light source, a first single-mode fiber, a tapered SPF, a second single-mode fiber, and a spectrometer. The broadband light source is connected to the tapered SPF through the first single-mode fiber, and the tapered SPF is connected to the spectrometer through the second single-mode fiber. The broadband light source is configured to emit a light wave. The spectrometer is configured to display a spectrum corresponding to a light wave passing through the first single-mode fiber, the tapered SPF, and the second single-mode fiber successively. In the present invention, a fiber side-polishing technology is combined with a fiber tapering technology to construct a tapered SPF, and a spectrum changes by changing a refractive index around a side-polished tapered region, thereby measuring the refractive index.

Abstract: This application provides a headset accommodating apparatus, a headset, and a portable device. The headset accommodating apparatus includes a base, and an accommodating cavity used to accommodate a headset is formed on the base. The accommodating cavity has a bottom surface, a side wall, and an opening, and has a first end corresponding to a headset head and a second end corresponding to a headset tail. An epitaxial frame that extends toward the second end is formed at an opening of the first end. The apparatus includes a first spring and a sliding block at a side wall of the second end, and the first spring may be compressed in a direction of a connecting line between the first end and the second end. A first end of the sliding block is connected to the first spring, and a protruding part is formed on a second end of the sliding block.

Abstract: The present invention relates to a vaginal sustained-release drug delivery system for luteal support and a method for preparation and use thereof. The vaginal sustained-release drug delivery system for luteal support is a progesterone depot-type vaginal ring having a bilayer structure of a core layer and a film layer enclosing the core layer, wherein the core layer is composed of a solid scaffold carrier of medical EVA containing a drug uniformly dispersed therein, and the film layer is composed of a medical EVA material containing no drug. The vaginal sustained-release drug delivery system for luteal support according to the present invention can be used for assisted reproduction and for treatment of functional uterine bleeding, premenstrual syndrome and the like due to luteal phase defect with a significantly improved therapeutic effect.

Abstract: A method, a device, and a computer program product for managing a mobile terminal are provided. In one method, a first position of the mobile terminal at a first time point and a first signal quality of a mobile network signal of the mobile network at the first position are detected, respectively; a signal quality distribution of the mobile network signal in a surrounding area of the first position is acquired; a prediction of a second signal quality of a mobile network signal to be received by the mobile terminal at a second time point is obtained according to the signal quality distribution, the second time point being a future time point after the first time point; and according to the first signal quality and the prediction of the second signal quality, a second service quality to be provided to the mobile terminal at the second time point is determined.

Abstract: Specific parameter sets are provided that makes the transcranial focused ultrasound to selectively activate a certain neuronal type at cortical brain and enables the transcranial focused ultrasound to non-invasively induce long-term effects at deep brain. A type of ultrasound collimator with incidence angle control is designed and validated through acoustic field pressure mapping in order to target brain areas at different depths. Multi-elements transducer arrays are also used to achieve transmission of focused ultrasound.

Abstract: Disclosed herein are methods and apparatus for the imaging of brain electrical activity from electromagnetic measurements, using deep learning neural networks where a simulation process is designed to model realistic brain activation and electromagnetic signals to train generalizable neural networks and a residual convolutional neural network and/or a recurrent neural network is trained using the simulated data, capable of estimating source distributions from electromagnetic measurements, and their temporal dynamics over time, for pathological signals in diseased brains, such as interictal activity and ictal signals, and physiological brain signals such as evoked brain responses and spontaneous brain activity.

Abstract: Provided are an oxovanadium phosphate catalyst, and a preparation method and an application therefor. The method includes: 1) mixing and reacting a vanadium source, a choline chloride-organic carboxylic acid eutectic solvent, and alcohol; 2) mixing the obtained reaction product with a phosphorus source, raising the temperature to a temperature higher than the melting point of the eutectic solvent, and continuing the reaction to obtain an oxovanadium phosphate precursor; and 3) calcining to obtain the oxovanadium phosphate catalyst. The alcohol is: benzyl alcohol or a mixture of C3-C8 monohydric alcohol and benzyl alcohol. The present method uses a green and inexpensive eutectic solvent to strengthen the preparation of oxovanadium phosphate catalyst, avoids the disadvantages of the prior art, and overcoming the problems of low yield and poor selectivity when used in a reaction to prepare maleic anhydride by catalytic n-butane selective oxidisation.

Abstract: Embodiments of the present disclosure relate to a method, a device, and a computer program product for acquiring visual content. A method for acquiring visual content is provided, which includes: if a request for viewing visual content is received from a terminal device, determining, at a content providing device, target visual content corresponding to the request; based on storage information related to at least one copy of the target visual content, determining a to-be-provided copy from the at least one copy, a distance between a storage location of the to-be-provided copy and a location of the terminal device being smaller than a threshold distance; and transmitting the to-be-provided copy to the terminal device. Through embodiments of the present disclosure, it is possible to reduce the delay in acquiring visual content, increase the flexibility in acquiring visual content, and reduce the processing load of the terminal device.

Abstract: A fracture reduction system includes a reduction device for reducing a fracture bone to be reduced; and a display device for displaying a posture of the fracture bone to be reduced based on a bone model. The display device can cooperate with the reduction device so that the bone model moves synchronously with the fracture bone to be reduced. The posture of the fracture bone to be reduced is displayed based on the bone model, so that the medical staff can know the current posture of the fracture bone to be reduced according to the posture of the bone model and design corresponding reduction actions specifically according to the reduction conditions, so as to reduce the difficulty and increase the precision of fracture reduction.

Abstract: The present invention belongs to the field of pesticides, particularly relates to a pyrazolone compound or a salt thereof, a preparation method therefor, a herbicidal composition and use thereof. The pyrazolone compound is as described in formula I: In the formula, R1R2N represents substituted or unsubstituted 3-8 membered nitrogen-containing heterocyclic group containing 1-3 heteroatoms; or R1 and R2 each represent hydrogen or C1-8 alkyl; R3 represents hydrogen, C1-4 alkyl, alkenyl, alkynyl, unsubstituted C3-6 cycloalkyl or C3-6 cycloalkyl substituted by C1-4 alkyl; R4 represents methyl, ethyl, n-propyl, isopropyl or cyclopropyl; X represents hydrogen, —S(O)nR6, —R7 or substituted or unsubstituted 3-8 membered heterocyclic group containing 1-4 heteroatoms, wherein, n represents 1, 2 or 3, R6 represents substituted or unsubstituted alkyl or aryl, and R7 represents substituted or unsubstituted alkyl, aryl, alkyl acyl or aroyl.

Abstract: A method and apparatus for degrading a hypodermal tissue scaffold involves exposing the scaffold to a low-intensity focused ultrasonic beam such as to induce transient cavitation of microbubbles trapped in the hydrophobic domains of the silk fibroin from which scaffold is constructed. In one embodiment, the ultrasonic beam is a 1 MHz pulsed signal having a period of approximately 500 ms. The weight reduction experienced by the scaffold as a function of the exposure time of the scaffold to the ultrasonic beam.

Abstract: A system and method for cardiac activation imaging includes non-invasively or minimally invasively acquiring data about an electrical activation of a heart of a subject using at least one sensor. An activation image of the heart of the subject is reconstructed using a weighted sparse constrained reconstruction.

Abstract: A system and method for non-invasively generating a report of cardiac electrical activities of a subject includes determining, using cardiac electrical activation information, equivalent current densities (ECDs). The ECDs are assembled into time-course ECD information and a spectrum of the time-course ECD information is analyzed to determine peaks for spectral characteristics of atrial fibrillation (AF). The spectral characteristics of AF are correlated with potential electrical sources of the AF and a report is generated indicating the potential electrical sources of the AF spatially registered with the medical imaging data.

Abstract: The present disclosure relates to a method, device and product for managing application nodes in a distributed application system. In a method, status of a plurality of application nodes in the distributed application system is obtained. A failed application node is determined among the plurality of application nodes based on the obtained status. A parent application node of the failed application node is determined according to a hierarchical structure of the distributed application system, the hierarchical structure describing connection relationships among the plurality of application nodes.

Abstract: A graphics processing unit (GPU) sequences provision of operands to a set of operand registers, thereby allowing the GPU to share at least one of the operand registers between processing. The GPU includes a plurality of arithmetic logic units (ALUs) with at least one of the ALUs configured to perform double precision operations. The GPU further includes a set of operand registers configured to store single precision operands. For a plurality of executing threads that request double precision operations, the GPU stores the corresponding operands at the operand registers. Over a plurality of execution cycles, the GPU sequences transfer of operands from the set of operand registers to a designated double precision operand register. During each execution cycle, the double-precision ALU executes a double precision operation using the operand stored at the double precision operand register.