Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for generating speech from text. One of the systems includes one or more computers and one or more storage devices storing instructions that when executed by one or more computers cause the one or more computers to implement: a sequence-to-sequence recurrent neural network configured to: receive a sequence of characters in a particular natural language, and process the sequence of characters to generate a spectrogram of a verbal utterance of the sequence of characters in the particular natural language; and a subsystem configured to: receive the sequence of characters in the particular natural language, and provide the sequence of characters as input to the sequence-to-sequence recurrent neural network to obtain as output the spectrogram of the verbal utterance of the sequence of characters in the particular natural language.

Abstract: A photoelectric computing unit, a photoelectric computing array and a photoelectric computing method. The photoelectric computing unit includes a semiconductor multifunctional region structure, which includes at least one carrier control region, at least one coupling region, and at least one photon-generated carrier collection region and readout region.

Abstract: A method for safety monitoring of a crack in a blade groove of an in-service nuclear turbine rotor includes: acquiring a phased array detection crack depth of the blade groove of the in-service nuclear turbine rotor; acquiring a stress corrosion crack propagation life, a low cycle fatigue crack propagation life and a high cycle fatigue crack propagation life based on the phased array detection crack depth; acquiring a crack propagation calendar life of the blade groove of the rotor based on the stress corrosion crack propagation life, the low cycle fatigue crack propagation life and the high cycle fatigue crack propagation life; and performing safety monitoring on the crack in the blade groove of the rotor based on the crack propagation calendar life.

Abstract: Provided are a message display method, an electronic device, and a storage medium. The message display method includes the following: A message list page is displayed, and an unread message thumbnail is displayed on the message list page. A first trigger operation acting on a target unread message thumbnail is received. In response to the first trigger operation, a message display area is displayed; and a target unread message corresponding to the target unread message thumbnail is displayed in the message display area. A second trigger operation for switching the currently-displayed message in the message display area is received. In response to the second trigger operation, the current unread message displayed in the message display area is switched to another message sent by a target sending user other than the currently-displayed message.

Abstract: Disclosed is an incomplete dimensionality augmentation-based optimization method for a data-driven power system. By dividing a power flow independent variable into a control variable and a disturbance variable, such as power of a controllable power supply and an uncontrolled voltage amplitude, only the disturbance variable is subjected to dimensionality augmentation, to adapt to the nonlinear characteristic of the power flow; and the control variable keeps a power flow constraint as a linearized expression of the control variable, thereby simplifying a power flow constraint form and solution, and achieving a higher-accuracy of optimization. The power optimization scheduling of distributed photovoltaic can be implemented by the optimization method provided in the present invention.

Abstract: The present disclosure provides a method for predicting, monitoring and increasing reliability for an in-service nuclear power plant.

Abstract: Methods, systems, and computer program products for generating, from an input character sequence, an output sequence of audio data representing the input character sequence. The output sequence of audio data includes a respective audio output sample for each of a number of time steps. One example method includes, for each of the time steps: generating a mel-frequency spectrogram for the time step by processing a representation of a respective portion of the input character sequence using a decoder neural network; generating a probability distribution over a plurality of possible audio output samples for the time step by processing the mel-frequency spectrogram for the time step using a vocoder neural network; and selecting the audio output sample for the time step from the possible audio output samples in accordance with the probability distribution.

Abstract: A method for virus detection is disclosed, including introducing a biological media to an aptamer functionalized electrochemical sensor, generating an electrochemical signal from a reaction between a virus and an aptamer, analyzing the electrochemical signal to determine presence of the virus, analyzing the electrochemical signal to determine a quantity of the virus, and transmitting a presence of the virus and a quantity of the virus. A device for virus detection and method for fabricating a device for virus detection is also disclosed. The device for virus detection also includes an electrode, a functionalized aptamer anchored to the electrode, where an aptamer is functionalized such that it is specific to a virus, such as SARS-COV-2 or an alternate virus or interest. The device for virus detection may be wearable.

Abstract: Provided herein are methods for identifying a genetic characteristic, a fragment characteristic and an epigenetic characteristic of a double-stranded DNA molecule in a population of double-stranded DNA molecules by assaying both strands of the double-stranded DNA molecule.

Abstract: A display panel, a display device and a manufacturing method of a display panel are provided. The display panel includes a backplane and a plurality of first electrodes. The backplane includes a first main surface and a second main surface opposite to each other, and a plurality of side surfaces connecting the first main surface and the second main surface. At least one side surface in the plurality of side surfaces is a selected side surface. Two adjacent side surfaces are provided with a transition side surface therebetween, and are connected through the transition side surface. The plurality of first electrodes are disposed on the first main surface. The plurality of first electrodes are adjacent to the selected side surface.

Abstract: Electrocatalytic overall water splitting to generate hydrogen and oxygen is a green and sustainable approach with zero carbon emission, which is important for the future renewable energy landscape. The practical application of this approach is challenging due to the sluggish reaction kinetics of water activation at high current densities, which are hard to overcome. Although high-performance alkaline bifunctional electrocatalysts may be useful, current catalysts lack both activity and durability. One approach is to rationally design bifunctional two-dimensional (2D) heterostructures but obtaining an efficient and durable catalyst has proved difficult. The present disclosure relates generally to an electrocatalyst including a 2D heterostructure (Ru-CMOP), methods of making and using the same. The catalyst of the present disclosure is designed for high activity and good durability at industrial-level high current densities.

Abstract: A display device, and a display panel and a manufacturing method therefor, relating to the technical field of display. The display panel includes a substrate, a driver layer, a barrier structure, and a light-emitting layer covering the driver layer and the barrier structure and being discontinuously at least at a barrier groove of the barrier structure. The barrier structure includes a support layer, a barrier layer and a second protective layer. The barrier layer is in a different area of a same film layer than a wiring layer of the driver layer, and a side wall of the barrier layer is provided with the barrier groove surrounding the driver layer. The second protective layer is on a surface of the barrier layer away from the substrate and in a different area of a same protective film than a first protective layer of the driver layer.

Abstract: A holder for a prosthetic valve includes a base, claw locks and a holding handle. The base has opposite bottom and top sides. The prosthetic valve assembly area is defined on the bottom side. The claw locks are connected to the base and located on the bottom side of the base. The claw locks are arranged around the prosthetic valve assembly area. The holding handle is connected to the base and is located on the top side of the base. In this solution, the claw locks are in a clearance fit with the connecting ears or mesh gaps to facilitate the connection or disconnection between the holder and the prosthetic valve.

Abstract: A method for manufacturing a display substrate is provided. The method includes: forming a first active layer arranged in the NMOS transistor region and a second active layer arranged in the PMOS transistor region on the base substrate; coating one side, facing away from the base substrate, of the first active layer and one side, facing away from the base substrate, of the second active layer with a first photoresist layer, forming a first pattern layer by patterning the first photoresist layer to expose at least two ends of the first active layer; forming N-type heavily doped regions by performing N-type heavy doping on the two ends of the first active layer with the first pattern layer as a mask; forming a second pattern layer by processing the first pattern layer to expose at least a middle region of the first active layer.

Abstract: Provided are an unread message display method, an electronic device, and a storage medium. The method includes the following: A message list page is displayed, and an unread message thumbnail is displayed on the message list page. A first trigger operation acting on a target unread message thumbnail is received. In response to the first trigger operation, an unread message display area is displayed; and a target unread message corresponding to the target unread message thumbnail is displayed in the unread message display area. A second trigger operation for switching the current unread message displayed in the unread message display area is received. In response to the second trigger operation, the current unread message displayed in the unread message display area is switched to an unread message sent by a target sending user other than the current unread message.

Abstract: Provided are an audio synthesis method and apparatus, an electronic device, and a readable storage medium. In the present solution, conversion from a text to an audio having a target timbre is achieved by means of a pre-trained voice synthesis model, the voice synthesis model comprising a first feature extraction sub-model and a second feature extraction sub-model, wherein the first feature extraction sub-model outputs, according to an inputted text to be processed, an acoustic feature comprising a bottleneck feature; the second feature extraction sub-model outputs, according to the inputted first acoustic features, a Mel spectrum feature corresponding to the text to be processed; according to the Mel spectrum feature corresponding to the text to be processed, the target audio corresponding to the text to be processed is obtained, and the target audio has the target timbre.

Abstract: As cell-free DNA from brain and spinal cord tumors cannot usually be detected in the blood, we assessed the cerebrospinal fluid (CSF) that bathes the CNS for tumor DNA, here termed CSF-tDNA. The results suggest that CSF-tDNA could be useful for the management of patients with primary tumors of the brain or spinal cord.

Abstract: The present disclosure provides an efficient vibration reduction and isolation base supported by a chained panel fluid bladder, including a chained panel, the vibration reduction fluid bladder, vertical limiting devices and a bottom plate. The chained panel is a discontinuous structure formed by connecting chained substructure panels in series by panel hinge devices. The vibration reduction fluid bladder and the vertical limiting devices are fixedly installed between the chained panel and the bottom plate. The chained panel is constructed based on the impedance mismatch principle and provided with a mechanical device. Mechanical vibration energy is dissipated twice by the chained panel and the vibration reduction fluid bladder, thereby greatly reducing influences of mechanical device operation on a hull structure.

Abstract: A display substrate and a display device are provided. The display substrate includes: a base substrate and a plurality of sub-pixels distributed in arrays and provided on the base substrate. And the plurality of sub-pixels is divided into a plurality of sub-pixel columns. The display substrate further includes: a plurality of data lines, each of which is coupled to respective sub-pixels at a corresponding sub-pixel column; a plurality of touch electrodes and a plurality of touch signal lines coupled to corresponding touch electrodes.

Abstract: A method for purifying biological dust suppressant by two-stage ultrafiltration is provided, which utilizes the differences of physical characteristics such as solubility and molecular morphology of each substance in fermentation broth to separate and purify the target product by two-stage ultrafiltration. Firstly, the fermentation broth is centrifugally pretreated to separate insoluble substances such as microbial cells; after centrifugation, the supernatant passes through a primary ultrafiltration membrane, and the polysaccharide, lactic acid and aggregated biological dust suppressant molecules with molecular weights more than 20 kilodaltons are cut off; organic solvents such as methanol and ethyl acetate are added to the retentate for dilution, further filtering is carried out with ultrafiltration membrane with a cutoff molecular weight more than 10 kilodaltons to obtain liquid product, and finally preparing solid purified product is conducted through rotary evaporation and constant temperature drying.