Abstract: Systems and methods for automated recording of an ultrasound clip are based on quality scores of ultrasound images in a sequence of ultrasound image frames. An ultrasound imaging system includes a probe for capturing ultrasound images, an image buffer to store a sequence of image frames, a quality buffer to store a sequence of quality scores, and a computing subsystem that automatically records an ultrasound clip when the quality scores in the quality buffer corresponding to a set of contiguous image frames in the image buffer equal or exceed a first quality threshold and the set of contiguous image frames is at least a first predetermined size. Additionally, a smart capture feature automatically records an ultrasound clip including an alternate set of contiguous image frames having quality scores equaling or exceeding a second quality threshold that is less than the first quality threshold and meets a second predetermined size.

Abstract: Provided is speaker, including magnetic circuit unit, frame fixed to the magnetic circuit unit, and first and second sound-producing unit both fixed to the frame. The magnetic circuit unit includes magnetically conductive assembly with lower clamping plate and magnet component located on lower clamping plate. A third magnetic conductor is arranged around the magnet component, first magnetic conductor, and second magnetic conductor. A first and a second voice coil are respectively located in magnetic gaps between third magnetic conductor and second magnetic conductor and between third magnetic conductor and first magnetic conductor. The two sound-producing units share the magnetic circuit unit.

Abstract: The present invention discloses a multiband resonance frequency tracking circuit applied to ultrasonic machining, including an output current-voltage phase difference direction detection circuit and a multiband resonance frequency tracking circuit, where a detection signal output end of the output current-voltage phase difference direction detection circuit is connected to a signal input end of the multiband resonance frequency tracking circuit. Through the foregoing technical solutions, in the present invention, a system detuning state is quickly determined by using a current-voltage phase difference direction detection signal outputted by a D flip-flop in a chip SN74HC74D, and a dead-time resistor between a 5th pin and a 7th pin in a chip EG3525 can be changed in a timely manner based on a detuning degree of a piezoelectric transducer, so as to change a system driving frequency to track a resonance frequency of the piezoelectric transducer and implement fast and accurate tracking.

Abstract: A data processing method, a device wake-up method, an electronic device, and a storage medium are provided. In the data processing method, speech to be processed is converted into a keyword phone sequence, and a similar pronunciation sequence generator acquires a similar phone sequence corresponding to the keyword phone sequence in a sequence generation manner, thereby acquiring a first data processed result corresponding to the speech to be processed. By replacing the search method of large-scale speech databases with this generation manner, effective coverage of possible real-life sounds can be achieved with a smaller model, thus improving the ability to distinguish confusing pronunciations. The above data processing method performed by the electronic device can be performed by an artificial intelligence (AI) model.

Abstract: A method and an apparatus of frequency regulation of a power system involving renewable energy power generation, a computer device, and a non-transitory computer readable storage medium are provided. The method includes: constructing a system frequency dynamic model according to parameters associated with power generator sets in the power system, where the power generator sets comprise a renewable energy power generator set and a conventional energy power generator set; calculating secure operation indexes of the power system according to the system frequency dynamic model of the power system; and obtaining system comprehensive cost indexes of the power system, constructing a reserve allocation model of the power generator sets according to the system comprehensive cost indexes and the secure operation indexes of the power system, and regulating a system frequency of the power system according to the reserve allocation model.

Abstract: An apparatus for removing VOC in polypropylene by steaming process includes: a cyclone separator, used for separating polypropylene particles and entraining gas from an upstream pneumatic system; a preheating tower, communicating with a discharge hole of the cyclone separator, a first steam inlet being provided on a tower body of the preheating tower, and a tail gas outlet being provided on top of the preheating tower; and a devolatilization tower, communicating with a discharge hole of the preheating tower, a second steam inlet being provided on a tower body of the devolatilization tower, a steam outlet being provided on top of the tower, and the steam outlet being communicating with the first steam inlet.

Abstract: Disclosed herein is a permanent magnet comprising: a plurality of aligned iron nitride nanoparticles wherein the iron nitride nanoparticles include ??-Fe16N2 phase domains; wherein a ratio of integrated intensities of an ??-Fe16N2 (004) x-ray diffraction peak to an ??-??-Fe16N2 (202) x-ray diffraction peak for the aligned iron nitride nanoparticles is greater than at least 7%, wherein the diffraction vector is parallel to alignment direction, and wherein the iron nitride nanoparticles exhibit a squareness measured parallel to the alignment direction that is greater than a squareness measured perpendicular to the alignment direction.

Abstract: An emotion estimation apparatus includes preparation biological information acquisition circuitry acquires, separately from subjects who are in a preparation space, first biological information indicating a physical state of each subject and analyzes the first biological information, preparation emotion information acquisition circuitry acquires emotion information indicating an emotion of each of the subjects, association construction circuitry constructs association information in which the first biological information and the emotion information corresponding to the first biological information are associated with each other, estimation biological information acquisition circuitry acquires second biological information indicating a physical state of any one subject of the subjects who is present in an estimation space, estimation circuitry extracts the emotion information associated in the association information with the first biological information that is equal to the second biological information, and

Abstract: A neural network accelerator architecture for multiple task adaptation comprises a volatile memory comprising a plurality of subarrays, each subarray comprising M rows and N columns of volatile memory cells; a source line driver connected to a plurality of N source lines, each source line corresponding to a column in the subarray; a binary mask buffer memory having size at least N bits, each bit corresponding to a column in the subarray, where a 0 corresponds to turning off the column for a convolution operation and a 1 corresponds to turning on the column for the convolution operation; and a controller configured to selectively drive each of the N source lines with a corresponding value from the mask buffer; wherein each column in the subarray is configured to store a convolution kernel.

Abstract: The present disclosure relates to image rendering methods apparatuses, and electronic devices. One example method includes obtaining, by a central processing unit (CPU), an image command stream used to render an image frame, comparing the image command stream with a previous image command stream, and, when a same drawing command exists in the two image command streams, instructing a graphics processing unit (GPU) to render the image frame based on a previously generated drawing target.

Abstract: Various systems and methods for implementing protocol state aware power management are described herein. A network interface device for implementing protocol state aware power management includes circuitry to provide a direct memory access interface; medium access control (MAC) circuitry to interface with a network; and control circuitry to: classify packets received at the MAC circuitry as packets used to open network connections or packets used to close network connections; maintain statistics of packets used to open network connections and packets used to close network connections; calculate a power hint based on the statistics of packets used to open connections and packets used to close network connections; and write a receive descriptor to a host memory using the direct memory access interface, the receive descriptor including a power hint field with the power hint, the power hint used by a host processor to scale processor power based on the power hint.

Abstract: A drilling fluid inhibition evaluation device includes a main test member, a temperature control pressurization system, a gas source, a circulation heating system, a confining pressure pump, a central control system, a computer, an ultrasonic detector and a safety valve electrically connected through pipelines, respectively, the main test member and the temperature control pressurization system sequentially connected with the gas source; the present disclosure can pre-pressurize experimental fluid and then inject the fluid into a dilatometer, so as to prevent the fluid from generating obvious changes of phase states, eliminate pressure setting errors caused by a saturated vapor pressure of the fluid, improve accuracy of evaluation results, inspect a real expansion state of the sample and simultaneously monitor structural change characteristics of a rock sample in real time through reflection conditions of sound waves.

Abstract: The present application relates to the use of CYP4V2 and RdCVF in the manufacture of a medicament for treating, alleviating, and/or preventing a disease or disorder associated with retinal pigment epithelium (RPE) atrophy. The present application also relates to an isolated nucleic acid molecule comprising a polynucleotide encoding CYP4V2 and a polynucleotide encoding RdCVF. The present application also relates to an amino acid sequence encoded by the isolated nucleic acid molecule, a vector comprising the isolated nucleic acid molecule, and a cell comprising the nucleic acid or the vector as well as use thereof in the manufacture of a medicament for treating, alleviating, and/or preventing a disease or disorder associated with retinal pigment epithelium (RPE) atrophy.

Abstract: The disclosure provides modified biotin-binding proteins which can be expressed in soluble form in high yield in bacteria. Also provided are fusion proteins comprising the modified biotin-binding protein and an antigen. The disclosure further provides non-hemolytic variants of alpha-hemolysin from S. aureus and fusion protein comprising non-hemolytic variant of alpha-hemolysin and a biotin-binding domains. Immunogenic compositions comprising the proteins are also disclosed and use of such immunogenic compositions for inducing an immune response or for vaccinating a subject are also disclosed.

Abstract: The present disclosure relates to the technical field of application of bioengineering technology in microbial oil recovery, and discloses a Brevibacillus agri strain and preparation thereof and a method for preparing surfactant, and use thereof. The Brevibacillus agri strain is deposited in the China General Microbiological Culture Collection Center under the accession number CGMCC No. 9983. The Brevibacillus agri and its preparation may effectively enhance the crude oil recovery; the method for preparing the surfactant allow the lipopeptide biosurfactant to have good physical properties, effectively reduce the surface tension, and have good emulsifying performance for petroleum, various hydrocarbons and lipids.

Abstract: Decoding method and memory system that decodes data and estimates a weighted checksum on the decoded data to determine whether the decoding is successful. The weighted checksum is calculated based on a first group and a second group, the first group is associated with weights for high degree nodes of an irregular parity check matrix, and the second group is associated with weights for low degree nodes of the irregular parity check matrix.

Abstract: Devices, systems, and methods for performance of an iterative decoder in a non-volatile memory are described. An example method includes receiving a noisy codeword that is based on a transmitted codeword generated from a low-density parity-check (LDPC) code, partitioning a maximum number of iterations of the iterative decoder into a plurality of stages, initializing a set of log likelihood ratios (LLRs) with symmetric LLRs, for each stage of the plurality of stages: performing a message passing algorithm, determining, at a last iteration of the current stage, a hard decision corresponding to a candidate version of the transmitted codeword, determining, based on the hard decision, a set of asymmetric LLRs, and assigning the set of asymmetric LLRs to the set of LLRs, and determining the candidate version of the transmitted codeword using the set of LLRs.

Abstract: A vector includes a polynucleotide encoding CYP4V2 and a promoter operably linked to the polynucleotide encoding CYP4V2. The vector has a good expression effect, high expression speed, and more stable expression intensity. Cells, pharmaceutical compositions, and kits can include the vector. Methods for treating, alleviating, and/or preventing a disease or disorder associated with retinal pigment epithelium (RPE) atrophy can include administering the vector to a subject.

Abstract: Embodiments provided herein relate to methods and compositions for preparing an immobilized library of barcoded DNA fragments of a target nucleic acid, identifying genomic variants, determining the contiguity information, phasing information, and methylation status of the target nucleic acid.