Abstract: This present disclosure provides a core-shell quantum dot, a preparation method thereof, and a light-emitting device containing the same. The core of the core-shell quantum dot is CdSeXS(1-X), and the quantum dot shells include a first shell and a second shell, the first shell being selected from one or more of ZnSe, ZnSeYS(1-Y) and Cd(Z)Zn(1-Z)S, the second shell covering the first shell being one of Cd(Z)Zn(1-Z)S and ZnS, the maximum emission peak of the core-shell quantum dot is less than or equal to 480 nm, 0<X<1, 0<Y<1, 0<Z<1. The CdSeXS(1-X) core has a smaller bandgap and a shallower HOMO energy level, making hole injection easier.

Abstract: A turbocharger air intake silencer with adjustable cavity space structures is provided. The turbocharger air intake silencer comprises a silencer connecting flange and a first resonator device. The first resonator device comprises a first silencer sealing plate, a first annular sound absorption cavity body, a first rotary table, a first rotary steering gear and a first valve. A first sound absorption cavity is enclosed by the first silencer sealing plate, the first annular sound absorption cavity body, the first valve and the first rotary table. A first sound absorption cavity inlet pipe is arranged beside the first sound absorption cavity. The first sound absorption cavity and the first sound absorption cavity inlet pipe form a Helmholtz resonator. The first rotary steering gear is mounted on the silencer connecting flange. The rotary steering gear is connected with a first rotary rack.

Abstract: An electric drive assembly has a first wheel drive assembly and a second wheel drive assembly. The first wheel drive assembly includes a first motor, a first gear reduction mechanism, and a first disengaging mechanism. When the first disengaging mechanism is switched to an engagement position of the first disengaging mechanism, power of the first motor is transmitted to a first wheel through the first gear reduction mechanism. The second wheel drive assembly includes a second motor, a second gear reduction mechanism, and a second disengaging mechanism. When the second disengaging mechanism is switched to an engagement position of the second disengaging mechanism, power of the second motor is transmitted to a second wheel through the second gear reduction mechanism. When the first disengaging mechanism or the second disengaging mechanism is switched to a disengagement position, the power of the motors to the corresponding wheels is interrupted.

Abstract: The present disclosure provides a bit allocation method and apparatus for an audio signal. The bit allocation method for an audio signal includes: obtaining T audio signals in a current frame, where T is a positive integer; determining a first audio signal set based on the T audio signals, where the first audio signal set includes M audio signals, M is a positive integer, T?M; determining M priorities of the M audio signals in the first audio signal set; and performing bit allocation on the M audio signals based on the M priorities of the M audio signals.

Abstract: A turbocharger air intake silencer with adjustable cavity space structures is provided. The turbocharger air intake silencer comprises a silencer connecting flange and a first resonator device. The first resonator device comprises a first silencer sealing plate, a first annular sound absorption cavity body, a first rotary table, a first rotary steering gear and a first valve. A first sound absorption cavity is enclosed by the first silencer sealing plate, the first annular sound absorption cavity body, the first valve and the first rotary table. A first sound absorption cavity inlet pipe is arranged beside the first sound absorption cavity. The first sound absorption cavity and the first sound absorption cavity inlet pipe form a Helmholtz resonator. The first rotary steering gear is mounted on the silencer connecting flange. The rotary steering gear is connected with a first rotary rack.

Abstract: Disclosed are an analog quantity acquisition method and apparatus. An acquisition circuit with a zero flux current transformer is first used to acquire a current signal, where the acquisition circuit with the zero flux current transformer includes the zero flux current transformer, a compensating winding, and a dynamic detection unit, and the compensating winding generates a reverse excitation potential to counteract an excitation current and eliminate impacts of a ratio error and a phase angle error on accuracy. A multi-segment amplification circuit is used to perform segmented amplification on different ranges of the current signal, and full-range current acquisition is achieved by using different amplification circuits. An analog-to-digital converter chip is used to convert an amplified current signal into a digital signal. The acquisition circuit with the zero flux current transformer is used to eliminate the impacts of the ratio error and the phase angle error on the measurement accuracy.

Abstract: A sperm sorting device suitable for selectively isolating a plurality of motile sperms from a semen specimen includes a base whose bottom wall and surrounding wall define a receiving space, and a sorter securely coupled to the base and including a mounting member and a sorting filter. The mounting member has a sleeve located in the receiving space and an injection portion located at the bottom end of the sleeve and having an injection hole. The sorting filter is fixed on the sleeve and, together with the injection portion and the sleeve, defines a sorting chamber with an open top end. The sorting filter, the bottom wall, and the surrounding wall define a specimen chamber for receiving the semen specimen. The injection hole brings the specimen chamber and the sorting chamber into communication vertically, so the semen specimen can be injected through the injection hole into the specimen chamber rapidly.

Abstract: A stereo encoding method and apparatus, and a stereo decoding method and apparatus are disclosed. The stereo encoding method includes: performing downmix processing on a left channel signal of a current frame and a right channel signal of the current frame, to obtain a primary channel signal of the current frame and a secondary channel signal of the current frame; and when determining that a frame structure similarity value falls within a frame structure similarity interval, performing differential encoding on a pitch period of the secondary channel signal by using an estimated pitch period value of the primary channel signal, to obtain a pitch period index value of the secondary channel signal, where the pitch period index value of the secondary channel signal is used to generate a to-be-sent stereo encoded bitstream.

Abstract: The present invention relates to the technical field of medicine and relates to an instant release pharmaceutical preparation of an anticoagulant and a preparation method therefor. The instant release pharmaceutical preparation of an anticoagulant comprises a vicagrel compound or a pharmaceutically acceptable form thereof, the preparation is a tablet or a capsule, the vicagrel or the pharmaceutically acceptable form thereof is provided at a suitable particle size, and the D90 thereof <50 ?m. With regard to the drug-containing particles obtained by the present invention, a pharmaceutical preparation formed therefrom exhibits rapid release characteristics in an in vitro dissolution test and exhibits considerable advantages in pharmacokinetics in vivo, showing a greater degree (AUC) and rate (Cmax) of drug absorption.

Abstract: This disclosure relates to a digital comparator coupled to a pair of pull-up resistors and a pair of pull-down resistors whereby both pairs of resistors are coupled to an output terminal of a low dropout (LDO) regulator. In particular, the digital comparator comprises an edge detector module, a consecutive two-edge detector module and a consecutive three-edge detector module whereby the edge detector module is configured to receive two clock signals as inputs and after being processed by these three modules, to pull-up or pull-down the resistors at the output terminal of the LDO regulator based on the rising and falling edges of the received clock signals.

Abstract: Techniques are described to for performing a slice-aware cell selection or slice-aware random-access techniques. An example wireless communication method includes performing, by a communication device, a cell selection technique using a one set of cell selection related information associated with a slice, where the one set of cell selection related information is from multiple sets of cell selection related information related to a plurality of slices, and where each set of cell selection related information is associated with one slice from the plurality of slices.

Abstract: A method and device for determining a suction height of a variable speed unit is provided. The method includes: acquiring a reference cavitation coefficient and a reference specific rotation speed parameter corresponding to a target water head section in a preset number of power stations; conducting calculations on the reference cavitation coefficient and the reference specific rotation speed parameter by utilizing a target scheme to obtain a target formula; acquiring a maximum lift, a minimum lift, a speed variation range and a synchronous rotation speed value of a current target variable speed unit and input force values of the target variable speed unit at a plurality of key working condition points; and determining a target suction height of the target variable speed unit.

Abstract: Methods of training a machine learning model and using the trained model to assess ultrasound measurement data are disclosed. In one arrangement, training data comprises a plurality of classified frames of ultrasound measurement data. Each of at least a subset of the classified frames is classified as representing an imaging plane capable of providing information about a respective target anatomical feature. First and second samples of frames are selected. A machine learning model derives prototype feature vectors from the first sample and feature vectors from the second sample. A loss function depending on metrics representing distances between the feature vectors and the prototype feature vectors is optimized to train the machine learning model.

Abstract: A method for obtaining a higher-order ambisonics (HOA) coefficient includes obtaining location information of a virtual speaker on a preset spherical surface, where the preset spherical surface includes M circles of longitude and N circles of latitude, and obtaining, based on the location information and a preset reference trigonometric function table, a trigonometric function value corresponding to the location information, where the reference trigonometric function table includes an elevation trigonometric function table and/or an azimuth trigonometric function table, and obtaining an HOA coefficient for the virtual speaker based on the trigonometric function value corresponding to the location information.

Abstract: Techniques are disclosed to use a robotic arm to palletize or depalletize diverse items. In various embodiments, data associated with a plurality of items to be stacked on or in a destination location is received. A plan to stack the items on or in the destination location is generated based at least in part on the received data. The plan is implemented at least in part by controlling a robotic arm of the robot to pick up the items and stack them on or in the receptacle according to the plan, including by for each item: using one or more first order sensors to move the item to a first approximation of a destination position for that item at the destination location; and using one or more second order sensors to snug the item into a final position.

Abstract: This application provides a method and an apparatus for determining a virtual speaker set. The method for determining a virtual speaker set includes: determining a target virtual speaker from F preset virtual speakers based on a to-be-processed audio signal, where each of the F virtual speakers corresponds to S virtual speakers, F is a positive integer, and S is a positive integer greater than 1; and obtaining, from a preset virtual speaker distribution table, respective position information of S virtual speakers corresponding to the target virtual speaker, where the virtual speaker distribution table includes position information of K virtual speakers, the position information includes an elevation angle index and an azimuth angle index, K is a positive integer greater than 1, F?K, and F×S?K. This application can improve audio signal playback effect.

Abstract: Techniques are disclosed to perform robotic handling of soft products in non-rigid packaging. In various embodiments, sensor data associated with a workspace is received. An action to be performed in the workspace using one or more robotic elements is determined, the action including moving an end effector of one of the robotic elements relatively quickly to a location in proximity to an item to be grasped; actuating a grasping mechanism of the end effector to grasp the item using an amount of force and structures associated with minimized risk of damage to one or both of the item and its packaging; and using sensor data generated subsequent to the item being grasped to ensure the item has been grasped securely. Control communications are sent to the robotic element via the communication interface to cause robotic element to perform the action.

Abstract: A method of skin detection for an object includes: acquiring an image of skin covering an outer surface of an object to be detected; evaluating the image of the skin to determine a skin lesion region of the object to be detected, in which the skin lesion region is an image region with a skin lesion feature in the image of the skin; determining a skin lesion attribute of the object to be detected based on the skin lesion feature of the skin lesion region and an object type of the object to be detected, in which the skin lesion attribute is used for describing a skin lesion generated on the object to be detected; and matching lesion data recorded in a lesion database based on the skin lesion attribute to determine a pathological result of the object to be detected.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, a single rank reference signal. The UE may obtain, for multiple candidate beams, one or more single rank measurements from the single rank reference signal. The UE may identify, for each respective candidate beam included among the multiple candidate beams and based at least in part on the one or more single rank measurements obtained from the single rank reference signal for the respective candidate beam, a multiple rank spectral efficiency metric. The UE may identify, from among the multiple candidate beams and based at least in part on the multiple rank spectral efficiency metric associated with each respective candidate beam, a beam to use to communicate with the network node. Numerous other aspects are described.

Abstract: The present application discloses a warp execution method used for SPs of an SM of a GPU and an associated GPU.