Abstract: An integrated optical circulator comprising at least two single-fiber bidirectional optical fiber interfaces (1), a refractive element group (2), an optical isolation element group (3), and an optical fiber array (4), wherein the refractive element group (2) and the optical isolation element group (3) are sequentially arranged on a same optical path; an incident signal light from each single-fiber bidirectional optical fiber interface (1) sequentially passes through the refractive element group (2) and the optical isolation element group (3), then is output by a corresponding outgoing optical fiber (43, 44) of the optical fiber array (4); the incident signal light from each incident optical fiber (41, 42) of the optical fiber array (4) sequentially passes through the optical isolation element group (3) and the refractive element group (2), and is output by the corresponding single-fiber bidirectional optical fiber interface (1).

Abstract: An article of footwear includes a heel cup that is attached to the upper and extends from the sole structure to at least a portion of the rear heel collar of the upper. The heel cup may be uniformly molded with an upper portion, midportion, and lower portion and the upper portion has a smaller mediolateral length than the midportion, and the midportion and lower portion form a concave structure that receives the heel. The upper portion has a first configuration and is capable of distorting into a second configuration under a load of a user's foot when the user is donning the footwear. In the second configuration, at least part of the upper portion is lowered and is capable of returning to the first configuration after the load of the user's foot is removed. The midportion includes a peripheral portion that may be thicker than a central portion.

Abstract: An article of footwear includes an upper and a U-shaped foamed ankle collar. The ankle collar may form the topmost region of the foot receiving shoe opening and the foamed ankle collar may extend at least partially around and over a foot receiving shoe opening. The ankle collar is capable of being compressed by the user's heel during foot insertion and the ankle collar may exert pressure on the user's ankle once the foot is inserted. The ankle collar may have a flattened region along its length forming a downward angle from the topmost region toward the front of the article of footwear. The ankle collar may be located along at least a portion of an inner surface of a heel cup and the heel cup may have a shoe-horn like configuration. The ankle collar may reduce the dimensions of the shoe opening when not compressed.

Abstract: An article of footwear includes a heel counter support situated on the upper and above the sole structure. The heel counter support may have at least two hollow receptacles with backward angles, a compressible component having two ends, and each one of the two hollow receptacles receives one end of the compressible component. The compressible component may have a first configuration and may be capable of distorting into a second configuration under a load of a user's foot when the user is donning the footwear. The compressible component may be capable of automatically returning to the first configuration after the user's foot in fully inserted into the footwear.

Abstract: Disclosed are a point cloud polar coordinate coding method and a device, including dividing a circular scanning area scanned by a lidar at an equal angle with an angle ?? to obtain a plurality of identical polar coordinate areas; dividing each of the polar coordinate areas with equal length along a radial direction with a length ?r to obtain a plurality of polar coordinate grids and generating a plurality of polar coordinate cylinders corresponding to each of the polar coordinate grids in a three-dimensional space; generating polar coordinate cylinder voxels; extracting structural features from the all point cloud data in each of the polar coordinate cylinder voxels; obtaining a two-dimensional point cloud pseudo-image; boundary supplementing to the two-dimensional point cloud pseudo-image; and performing feature extraction on the two-dimensional point cloud pseudo-image by using convolutional neural networks, and outputting a final feature map.

Abstract: The present invention provides a method for sequencing a nucleic acid using an immersion reaction protocol. The immersion reaction protocol comprises sequentially immersing a solid support having nucleic acid molecules immobilized thereon in different reaction containers to realize nucleic acid sequencing.

Abstract: A system for controlling damages in cleaning a semiconductor wafer comprising features of patterned structures, the system comprising: a wafer holder for temporary restraining a semiconductor wafer during a cleaning process; an inlet for delivering a cleaning liquid over a surface of the semiconductor wafer; a sonic generator configured to alternately operate at a first frequency and a first power level for a first predetermined period of time and at a second frequency and a second power level for a second predetermined period of time, to impart sonic energy to the cleaning liquid, the first predetermined period of time and the second predetermined period of time consecutively following one another; and a controller programmed to provide the cleaning parameters, wherein at least one of the cleaning parameters is determined such that a percentage of damaged features as a result of the imparting sonic energy is lower than a predetermined threshold.

Abstract: The present disclosure discloses an oil shale semicoke adsorption inhibitor and use thereof in concrete preparation. The adsorption inhibitor is prepared by the following steps: sequentially adding 50-52.5 weight parts of an anti-corrosion rheological agent, 5-20 weight parts of methanol, 0.5-2 weight parts of sulfonated melamine, 2-5 weight parts of EDTA, 20-30 weight parts of an organosilicon compound, and 5-10 weight parts of stearate into a mixing container, and performing stirring well. The anti-corrosion rheological agent is a microbead. The adsorption inhibitor solves problems of strong water absorption, high adsorption of a water reducing agent, etc. of oil shale semicoke, reduces the use amount of the water reducing agent in concrete production, and can also reduce power consumption during grinding, thereby realizing high-value resource utilization of the oil shale semicoke.

Abstract: A single-stage carbon dioxide multi-split cooling and heating multifunctional central air conditioner, comprising a single-stage carbon dioxide circulation system using carbon dioxide as a circulation working medium; the single-stage carbon dioxide circulation system comprises an outdoor unit and a plurality of end heat exchangers provided in parallel; and the carbon dioxide medium performs cooling and/or heating in a circulating manner in a carbon dioxide compressor, an outdoor heat exchanger, a liquid storage tank and the end heat exchangers which are in communication with one another.

Abstract: A carbon fiber filter includes a center filter body and carbon fiber yarn wound around the center filter body. The center filter body is hollow and includes a water outlet. A surface of the center filter body is provided with at least one inverted triangular groove. A plurality of through holes are arranged in the groove. The through holes and the water outlet are in communication with a hollow inner cavity of the center filter body. The carbon fiber yarn is wound in the groove with a constant force to form a filter layer.

Abstract: A method and user device for determining a unified Parkinson's disease rating scale (UPDRS) value associated with a user of the user device include obtaining video data associated with a movement of a body part of the user. The UPDRS value is determined using a model and the video data associated with the movement of the body part of the user. The UPDRS value is provided to permit an evaluation of the user based on the UPDRS value.

Abstract: A large-field-of-view, high-throughput and high-resolution pathological section analyzer includes an image collector for collecting a set of computing microscopic images of a pathological section sample; a data preprocessing circuit for iteratively updating the set of computing microscopic images by a multi-height phase recovery algorithm to obtain a low-resolution reconstructed image; an image super-resolution circuit for super-resolving the low-resolution reconstructed image according to a pre-trained super-resolution model to obtain a high-resolution reconstructed image; and an image analysis circuit for automatically analyzing the high-resolution reconstructed image according to different tasks, and specifically selecting different analysis models according to the different tasks to obtain corresponding auxiliary diagnosis results.

Abstract: A sound processing apparatus includes a receiving module configured to receive audio signals of one or more sounds acquired by a personal sound device, a processing module configured to use a sound processing model to perform: classification processing in which a type of a scenario where a user of the personal sound device is located is determined based on the audio signals; identification processing in which each of the one or more sounds is determined as a desired sound or an undesired sound based on the determined type of the scenario, and filtering processing in which filtering configuration is performed based on a result of the identification processing. The audio signals are filtered based on the filtering configuration, and an output module is configured to output the filtered audio signals, so as to provide same to the user.

Abstract: A control method of a smart welcome system of a vehicle includes emitting a low-frequency signal of a first power to search for a smart key in a first search area, emitting a high-frequency signal by the smart key, determining that the smart key is within the first search area, carrying out authentication for the smart key, transmitting a wake-up signal to an AVNT smart connection device, and emitting a low-frequency signal of a second power to search for the smart key in a second search area, executing a booting program, transmitting a high-frequency signal by the authenticated smart key, determining that the authenticated smart key is within the second search area, unfolding a side mirror and outputting a welcome sound output signal to a welcome speaker, and outputting a welcome sound simultaneously with unfolding the side mirror.

Abstract: The present disclosure discloses a method, device and node apparatus for blockchain permission control. The method comprises: receiving target information sent by a node apparatus; acquiring an account address of a configured account of the node apparatus; acquiring, according to the account address, from a predetermined block stored with the account address and an account permission corresponding to the account address, the account permission corresponding to the account address; and processing the target information according to the account permission accordingly. In the present disclosure, node apparatuses are configured with corresponding accounts, and performing permission control on the accounts can restrict permissions of different node apparatuses so as to ensure security and privacy of blockchain data.

Abstract: An intelligent control method for fully automatic bonding of a talc pill includes: automatically identifying, by an image recognition module, the specification and type of a silicon steel sheet to be processed, calling a corresponding bonding trajectory planning path of a talc pill according to the specification and type of the silicon steel sheet, and automatically bonding, by a manipulator automatic control module, the talc pill to a corresponding position on the silicon steel sheet according to the bonding trajectory planning path. The present disclosure further relates to an intelligent control system for fully automatic bonding of a talc pill. The intelligent control method and system of the present disclosure realize the fully automatic bonding of talc pills, and ensure the fastness and accuracy of the bonding of the talc pills. The application of the present disclosure greatly improves production efficiency, and can completely replace manual operation.

Abstract: An aqueous oleanolic acid solution, including from about 0.10 to 2.5 weight % oleanolic acid, from about 60 to 90 weight % solvent, and from about 20 to 40 weight % solubility agent, wherein the solvent includes water, the solubility agent includes sodium lauryl sulfate (SLS), and the aqueous oleanolic acid solution is substantially free of ethanol and dimethyl sulfoxide (DMSO).

Abstract: A method for drilling includes obtaining formation-measurement pairings, training a machine-learning model using the formation-measurement pairings, receiving measurements obtained by a tool positioned in a well formed in a formation, and generating a formation model of at least a portion of the formation using the machine-learning model and the measurements. The formation model represents one or more physical parameters of the formation, one or more structural parameters of the formation, or both.

Abstract: A vacuum cleaner that includes a surface cleaning head including a dirty air inlet, a brush supported by the surface cleaning head, a motor coupled to and operable to cause movement of the brush, a sensor to sense a voltage associated with a current of the motor, and a controller configured to control an amount of current provided to the motor in response to the sensed voltage. The controller is configured to control a first pulse width modulated (PWM) duty cycle provided to the motor when the sensed voltage is less than a reference voltage, control a second PWM duty cycle provided to the motor when the sensed voltage is greater than the reference voltage, the second PWM duty cycle being less than the first PWM duty cycle, and turn off the motor when the sensed voltage increases to a voltage associated with an overload current of the motor.