Abstract: The present disclosure provides compositions, methods, kits, systems and apparatus that are useful for nucleic acid polymerization. In particular, recombinant polymerases and biologically active fragments thereof are provided that allow for nucleic acid amplification. In some aspects, the disclosure provides recombinant polymerases that yield lower systematic error rates and/or improved accuracy, when used in sequencing by synthesis reactions as compared to a control polymerase. In one aspect, the disclosure relates to recombinant polymerases useful for nucleic acid sequencing, genotyping, copy number variation analysis, paired-end sequencing and other forms of genetic analysis. In another aspect, the recombinant polymerases are useful for the amplification of nucleic acid templates during PCR, emPCR, isothermal amplification, recombinase polymerase amplification, rolling circle amplification, strand displacement amplification and proximity ligation amplification.

Abstract: Provided test method and apparatus of communication chip, device and medium. The test method of communication chip includes receiving end test method and transmitting end test method. The receiving end test method of the communication chip includes: an idle time slot of the receiving end of the communication chip is detected in a running process of the communication chip; a test vector is generated, and a standard result corresponding to the test vector is generated; a data frame containing the test vector is constructed, and the data frame is sent to the receiving end of the communication chip in the idle time slot to enable the receiving end of the communication chip to process the data frame; and a chip processing result uploaded by the receiving end of the communication chip is received, and the standard result is compared with the chip processing result.

Abstract: A method for harmonic detection includes: acquiring a ripple component of a direct-current bus voltage; acquiring a harmonic component of the direct-current bus voltage based on the ripple component; acquiring a quadrature component of the harmonic component based on the harmonic component; acquiring a characteristic parameter of the harmonic component based on the quadrature component, in which the characteristic parameter includes a phase; and acquiring and outputting a voltage amplitude of the harmonic component based on the quadrature component and the phase of the harmonic component.

Abstract: A smuggling detection system and corresponding method are provided. The smuggling detection system includes a camera configured to capture an input image of a subject purported to be a baby. The smuggling detection system further includes a memory storing a deep learning model configured to perform a baby detection task for a smuggling detection application. The smuggling detection system also includes a processor configured to apply the deep learning model to the input image to provide a baby detection result of either a presence or an absence of an actual baby in relation to the subject purported to be the baby. The baby detection task is configured to evaluate one or more different distractor modalities corresponding to one or more different physical spoofing materials to prevent baby spoofing for the baby detection task.

Abstract: A mass transit surveillance system and corresponding method are provided. The mass transit surveillance system includes a camera configured to capture an input image of a subject purported to be a baby and presented at a mass transit environment. The mass transit surveillance system further includes a memory storing a deep learning model configured to perform a baby detection task for the mass transit environment. The mass transit surveillance system also includes a processor configured to apply the deep learning model to the input image to provide a baby detection result of either a presence or an absence of an actual baby in relation to the subject purported to be the baby. The baby detection task is configured to evaluate one or more different distractor modalities corresponding to one or more different physical spoofing materials to prevent baby spoofing for the baby detection task.

Abstract: A rotary buffer capable of adjusting damping includes a shaft sleeve, a rotating shaft, two oil valve plates, and an adjusting nut. An outer wall of a spindle is provided with wing plates. A left curved surface and a right curved surface of the spindle are arranged in a symmetrical and interlaced manner to form an oil gap. Each wing plate is mated with a corresponding one of the oil valve plates. Two sides of each wing plate are provided with pressure regulation passages communicating with an inner cavity of the shaft sleeve and an outer end face of a supporting shaft. The adjusting nut is provided with a platform surface to get contact with the outer end face of the supporting shaft for sealing the pressure regulation passages.

Abstract: The present invention discloses a method for preparing azoxystrobin intermediates represented by formulae (1) and (2), comprising: controlling a compound represented by formula (3) to contact with sodium methoxide and 4,6-dichloropyrimidine, to obtain a mixture of intermediates represented by formulae (1) and (2), in the existence of a catalyst, the catalyst is an azabicyclic compound or its salt. The present invention further discloses a method for preparing azoxystrobin, comprising: controlling the intermediate represented by formula (2) provided in the present invention to react with 2-cyanophenol or its salt under the catalytic action of an azabicyclic compound or its salt, to obtain an azoxystrobin compound represented by formula (4). The method provided in the present invention has advantages including high transformation ratio, high product purity, easy and convenient operation, and environmental friendliness.

Abstract: A computer-implemented method executed by at least one processor for training fast models for real-time object detection with knowledge transfer is presented. The method includes employing a Faster Region-based Convolutional Neural Network (R-CNN) as an objection detection framework for performing the real-time object detection, inputting a plurality of images into the Faster R-CNN, and training the Faster R-CNN by learning a student model from a teacher model by employing a weighted cross-entropy loss layer for classification accounting for an imbalance between background classes and object classes, employing a boundary loss layer to enable transfer of knowledge of bounding box regression from the teacher model to the student model, and employing a confidence-weighted binary activation loss layer to train intermediate layers of the student model to achieve similar distribution of neurons as achieved by the teacher model.

Abstract: The present invention discloses a method for preparing azoxystrobin intermediates represented by formulae (1) and (2), comprising: controlling a compound represented by formula (3) to contact with sodium methoxide and 4,6-dichloropyrimidine, to obtain a mixture of intermediates represented by formulae (1) and (2), in the existence of a catalyst, the catalyst is an azabicyclic compound or its salt. The present invention further discloses a method for preparing azoxystrobin, comprising: controlling the intermediate represented by formula (2) provided in the present invention to react with 2-cyanophenol or its salt under the catalytic action of an azabicyclic compound or its salt, to obtain an azoxystrobin compound represented by formula (4). The method provided in the present invention has advantages including high transformation ratio, high product purity, easy and convenient operation, and environmental friendliness.

Abstract: The present invention discloses a method for preparing azoxystrobin intermediates represented by formulae (1) and (2), comprising: controlling a compound represented by formula (3) to contact with sodium methoxide and 4,6-dichloropyrimidine, to obtain a mixture of intermediates represented by formulae (1) and (2), in the existence of a catalyst, the catalyst is an azabicyclic compound or its salt. The present invention further discloses a method for preparing azoxystrobin, comprising: controlling the intermediate represented by formula (2) provided in the present invention to react with 2-cyanophenol or its salt under the catalytic action of an azabicyclic compound or its salt, to obtain an azoxystrobin compound represented by formula (4). The method provided in the present invention has advantages including high transformation ratio, high product purity, easy and convenient operation, and environmental friendliness.

Abstract: A baby detection system and corresponding method are provided. The baby detection system includes a camera configured to capture an input image of a subject purported to be a baby and presented at an electronic-gate system. The baby detection system further includes a memory storing a deep learning model configured to perform a baby detection task for an electronic-gate application corresponding to the electronic-gate system. The baby detection system also includes a processor configured to apply the deep learning model to the input image to provide a baby detection result of either a presence or an absence of an actual baby in relation to the subject purported to be the baby. The baby detection task is configured to evaluate one or more different distractor modalities corresponding to one or more different physical spoofing materials to prevent baby spoofing for the baby detection task.

Abstract: A mass transit surveillance system and corresponding method are provided. The mass transit surveillance system includes a camera configured to capture an input image of a subject purported to be a baby and presented at a mass transit environment. The mass transit surveillance system further includes a memory storing a deep learning model configured to perform a baby detection task for the mass transit environment. The mass transit surveillance system also includes a processor configured to apply the deep learning model to the input image to provide a baby detection result of either a presence or an absence of an actual baby in relation to the subject purported to be the baby. The baby detection task is configured to evaluate one or more different distractor modalities corresponding to one or more different physical spoofing materials to prevent baby spoofing for the baby detection task.

Abstract: A baby detection system and corresponding method are provided. The baby detection system includes a camera configured to capture an input image of a subject purported to be a baby and presented at an electronic-gate system. The baby detection system further includes a memory storing a deep learning model configured to perform a baby detection task for an electronic-gate application corresponding to the electronic-gate system. The baby detection system also includes a processor configured to apply the deep learning model to the input image to provide a baby detection result of either a presence or an absence of an actual baby in relation to the subject purported to be the baby. The baby detection task is configured to evaluate one or more different distractor modalities corresponding to one or more different physical spoofing materials to prevent baby spoofing for the baby detection task.

Abstract: A smuggling detection system and corresponding method are provided. The smuggling detection system includes a camera configured to capture an input image of a subject purported to be a baby. The smuggling detection system further includes a memory storing a deep learning model configured to perform a baby detection task for a smuggling detection application. The smuggling detection system also includes a processor configured to apply the deep learning model to the input image to provide a baby detection result of either a presence or an absence of an actual baby in relation to the subject purported to be the baby. The baby detection task is configured to evaluate one or more different distractor modalities corresponding to one or more different physical spoofing materials to prevent baby spoofing for the baby detection task.

Abstract: A toilet seat cover with a full-directional night lamp includes an upper lid, a seat and two supports. A cylindrical night lamp is locked on the upper lid or locked between two seat shaft sleeves at two sides of the seat. The night lamp comprises at least one electric body and at least one light-pervious tube. The electric body has at least one end thereof defined as a light source end. The light source end of the electric body is axially sleeved on and fixed to the light-pervious tube. The whole night lamp can be detachably mounted on the upper lid or locked between the two seat shaft sleeves at two sides of the seat, thereby attaining a full 360 degree emission of light and allowing the lighting emission to be free of the operation state of the toilet seat cover.

Abstract: A toilet seat cover with an easily assembled and detached child seat includes an upper lid, a parent seat and a child seat. Two fixing shafts are respectively sleeved on two parent shaft sleeves. Two pins of two supports and the two fixing shafts are radially held with each other. Each of the two fixing shafts is axially inserted by a cylindrical shaft post. Two elastic c-shaped rings are respectively disposed at two ends of a child shaft sleeve and radially sleeved on the shaft post. At least one end of the child shaft sleeve disposes a central shaft which is radially inserted into a directional slot. When the child seat is not needed, the shaft post can be removed from the fixing shaft to attain a toilet seat cover with a common appearance.

Abstract: A vertical assembling and disassembling mechanism for a toilet seat includes a support, a fixing axle, and a turning member. A pin of the support can be inserted into or pulled out a radial pin hole of the fixing axle. The fixing axle includes a damper therein to connect with the turning member. The fixing axle is formed with a lock hole to receive a lock plate biased by a spring. A turning ring is provided to cooperate with the lock plate. The inner end of the lock plate is engaged with the pin. The inner wall of the turning ring is formed with an inverted step recess. When the turning ring is turned about 90±3 degrees, the outer end of the lock plate is engaged in the inverted step recess and the inner end of the lock plate is disengaged from an annular groove of the pin.

Abstract: The present invention discloses a method for preparing azoxystrobin intermediates represented by formulae (1) and (2), comprising: controlling a compound represented by formula (3) to contact with sodium methoxide and 4,6-dichloropyrimidine, to obtain a mixture of intermediates represented by formulae (1) and (2), in the existence of a catalyst, the catalyst is an azabicyclic compound or its salt. The present invention further discloses a method for preparing azoxystrobin, comprising: controlling the intermediate represented by formula (2) provided in the present invention to react with 2-cyanophenol or its salt under the catalytic action of an azabicyclic compound or its salt, to obtain an azoxystrobin compound represented by formula (4). The method provided in the present invention has advantages including high transformation ratio, high product purity, easy and convenient operation, and environmental friendliness.

Abstract: A quick installation hinge seat of a closestool cover plate includes two hinge shafts and two support seats. Each hinge shaft has a pin hole for connection of a pin provided on each support seat. A button switch is mounted between the two hinge shafts to control the pin in the pin hole. The button switch includes a hinge pipe, a button seat, a lock control rod slidable in the radial direction of the hinge pipe, a spring, and a button to press the lock control rod. Two ends of the lock control rod are axially inserted in the two hinge shafts respectively and slideable radially. Each of the two ends of the lock control rod has a locking plate and an unlocking plate. The locking plate and the unlocking plate are arranged in a stagger manner. Each pin has a locking groove and an unlocking groove thereon.

Abstract: A toilet seat cover with a full-directional night lamp includes an upper lid, a seat and two supports. A cylindrical night lamp is locked on the upper lid or locked between two seat shaft sleeves at two sides of the seat. The night lamp comprises at least one electric body and at least one light-pervious tube. The electric body has at least one end thereof defined as a light source end. The light source end of the electric body is axially sleeved on and fixed to the light-pervious tube. The whole night lamp can be detachably mounted on the upper lid or locked between the two seat shaft sleeves at two sides of the seat, thereby attaining a full 360 degree emission of light and allowing the lighting emission to be free of the operation state of the toilet seat cover.