Abstract: The accuracy of automatic speech recognition (ASR) tasks is improved using trained models. A speech recognition model is applied in a noisy environment where speech is spoken at a distance from the microphones. The techniques may include extracting speech features, data augmentation by adding feature perturbation, and/or a multi-domain end-to-end speech recognition model. In some implementations, the described technology includes using a teacher-group knowledge distillation strategy to train a deep end-to-end speech recognition model on original speech samples and the sample speech augmentation of the original speech samples, that outputs recognized text transcriptions corresponding to speech detected in the original speech samples and the sample speech augmentation.

Abstract: Hybrid reverse transcriptases formed from portions of FLVRT and MLVRT are provided.

Abstract: A child safety seat includes a seat portion, a backrest assembly connected with the seat portion, and a backrest adjusting system carried with the backrest assembly and including a lock. The backrest assembly including a first portion, a second portion slidably connected with the first portion, and a third portion slidably connected with the second portion. The lock includes a first latching part operable to lock and unlock the third portion with respect to the second portion, and a second latching part operable to lock and unlock the first portion with respect to the second portion, the second latching part being coupled to the first latching part so that the first and second latching parts are movable in unison relative to the backrest assembly.

Abstract: A method for preparing aluminum foam sandwich material by rotating friction extrusion and electromagnetic pulse hybrid process includes: step 1: preparing the filler; step 2: processing the filler to prepare a plurality of preforms; step 3: clamping and fixing the plurality of preforms to form a preform assembly; step 4: welding the panel on the surface of the preform assembly to form an non-foaming sandwich material; step 5: heating and foaming the non-foaming sandwich material through a foaming mold; step 6: insulating the foaming mold after completion of foaming; injecting cooling water into the foaming mold after completion of insulation to maintain pressure and shape, forming the aluminum foam sandwich material of the required shape. The aluminum foam sandwich material produced by this method has good interface bonding, no adverse interface reaction, high bending resistance, impact resistance, and excellent sound absorption and insulation properties.

Abstract: The present disclosure relates to an electronic device and its execution method and a computer-readable medium. An electronic device, comprising: a memory having instructions stored thereon; a processor configured to execute instructions stored on the memory to cause the electronic device to perform the following operations: analyzing an original video stream being played to determine start time and duration of a first video stream part to be replaced in the original video stream; retrieving a second video stream part with the same duration; playing the second video stream part in a front end at the determined start time to play the original video stream in a backend; and playing the original video stream in the front end after finishing playing the second video stream part.

Abstract: Covalently-linked DNA polymerases are provided.

Abstract: A method for preparing aluminum foam sandwich material by rotating friction extrusion and electromagnetic pulse hybrid process includes: step 1: preparing the filler; step 2: processing the filler to prepare a plurality of preforms; step 3: clamping and fixing the plurality of preforms to form a preform assembly; step 4: welding the panel on the surface of the preform assembly to form an non-foaming sandwich material; step 5: heating and foaming the non-foaming sandwich material through a foaming mold; step 6: insulating the foaming mold after completion of foaming; injecting cooling water into the foaming mold after completion of insulation to maintain pressure and shape, forming the aluminum foam sandwich material of the required shape. The aluminum foam sandwich material produced by this method has good interface bonding, no adverse interface reaction, high bending resistance, impact resistance, and excellent sound absorption and insulation properties.

Abstract: The present disclosure relates to a wide-angle lens assembly, which comprises, sequentially along an optical axis from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens. The first lens, the second lens, the third lens, the fifth lens and the ninth lens each has a negative refractive power; the fourth lens, the sixth lens and the tenth lens each has a positive refractive power; and a refractive power of the seventh lens and a refractive power of the eighth lens are positive-negative opposite.

Abstract: Hybrid reverse transcriptases formed from portions of FLVRT and MLVRT are provided.

Abstract: A child safety seat includes a seat portion, a backrest assembly connected with the seat portion, and a backrest adjusting system carried with the backrest assembly and including a lock. The backrest assembly including a first portion, a second portion slidably connected with the first portion, and a third portion slidably connected with the second portion. The lock includes a first latching part operable to lock and unlock the third portion with respect to the second portion, and a second latching part operable to lock and unlock the first portion with respect to the second portion, the second latching part being coupled to the first latching part so that the first and second latching parts are movable in unison relative to the backrest assembly.

Abstract: The present disclosure relates to an electronic device and its execution method and a computer-readable medium. An electronic device, comprising: a memory having instructions stored thereon; a processor configured to execute instructions stored on the memory to cause the electronic device to perform the following operations: analyzing an original video stream being played to determine start time and duration of a first video stream part to be replaced in the original video stream; retrieving a second video stream part with the same duration; playing the second video stream part in a front end at the determined start time to play the original video stream in a backend; and playing the original video stream in the front end after finishing playing the second video stream part.

Abstract: A child safety seat includes a backrest assembly including a first, a second, and a third portion slidably connected with one another, and a backrest adjusting system carried with the backrest assembly and configured to provide a first stage of height adjustment where the first and second portions are locked with each other and the third portion is movable relative to the first and second portions for adjustment, and a second stage of height adjustment where the second portion is locked with the third portion so that the second and third portions are movable in unison relative to the first portion for adjustment. The third portion carries an adjustment latch that engages with the second portion for locking the third portion in position in the first stage of height adjustment and engages with the first portion for locking the third portion in position in the second stage of height adjustment.

Abstract: Hybrid reverse transcriptases formed from portions of FLVRT and MLVRT are provided.

Abstract: Various embodiments may relate to an optical system. The optical system may include a lens structure configured to generate an outgoing Gaussian beam based on an incoming Gaussian beam. The optical system may also include a light source configured to provide the incoming Gaussian beam to the lens structure. The lens structure may be a flat lens or a phase plate.

Abstract: The accuracy of automatic speech recognition (ASR) tasks is improved using trained models. A speech recognition model is applied in a noisy environment where speech is spoken at a distance from the microphones. The techniques may include extracting speech features, data augmentation by adding feature perturbation, and/or a multi-domain end-to-end speech recognition model. In some implementations, the described technology includes using a teacher-group knowledge distillation strategy to train a deep end-to-end speech recognition model on original speech samples and the sample speech augmentation of the original speech samples, that outputs recognized text transcriptions corresponding to speech detected in the original speech samples and the sample speech augmentation.

Abstract: A geometric model-based evaluation method, system, and apparatus for a key performance indicator in a production procedure are disclosed. The method includes extracting a geometric characteristic and a characteristic attribute thereof from a product model; converting the geometric characteristic into a process characteristic so as to obtain the steps of a process related to a whole production procedure of producing a product, and devices corresponding to the steps of the process; and based on the steps of the process related to the production procedure and the devices corresponding to the steps of the process, simulating the whole industrial manufacturing procedure of the product, and outputting the KPI of the industrial manufacturing. At least one embodiment can evaluate the KPI of the whole industrial manufacturing procedure of the product according to the product model.

Abstract: Disclosed are various embodiments for user interfaces that differentiate payment instruments having a trusted beneficiary. It is determined that a payee entity has been designated as a trusted beneficiary for a particular payment instrument issued by a particular payment issuer. A user interface is generated that facilitates a user selection of one of a plurality of payment instruments associated with a user account. The plurality of payment instruments include the particular payment instrument. The user interface differentiates the particular payment instrument based at least in part the payee entity being designated as the trusted beneficiary for the particular payment instrument.

Abstract: A child safety seat includes a backrest assembly including a first, a second, and a third portion slidably connected with one another, and a backrest adjusting system carried with the backrest assembly and configured to provide a first stage of height adjustment where the first and second portions are locked with each other and the third portion is movable relative to the first and second portions for adjustment, and a second stage of height adjustment where the second portion is locked with the third portion so that the second and third portions are movable in unison relative to the first portion for adjustment. The third portion carries an adjustment latch that engages with the second portion for locking the third portion in position in the first stage of height adjustment and engages with the first portion for locking the third portion in position in the second stage of height adjustment.

Abstract: The present disclosure discloses a method and system for switched display of a grayscale of a multi-line scan light-emitting diode (LED), and relates to the field of LED display technology. In view of the problems in the prior art that a multi-line scan constant-current source chip has an insufficient refresh rate, a low grayscale level, and a poor low-grayscale effect, the present disclosure provides a method during the display of relatively high grayscales, a display cycle is scrambled. During the display of relatively low grayscales, the grayscales are combined. In the present disclosure, a relatively high refresh rate and a grayscale level can still be ensured in a case of a relatively large quantity of line scans. In addition, in the case of low-grayscale display, the problems such as low-grayscale speckles, slightly dark low-grayscale, and relatively poor low-grayscale linearity are resolved, thereby improving a picture display effect.

Abstract: A child safety seat includes a seat portion, a backrest assembly connected with the seat portion and including a first and a second portion slidably connected with each other and a third portion slidably connected with the second portion, and a backrest adjusting system carried with the backrest assembly and configured to provide a first stage of height adjustment where the first and second portions are locked with each other and the third portion is movable relative to the first and second portions for adjustment, and a second stage of height adjustment where the second portion is locked with the third portion and unlocked from the first portion so that the second portion and the third portion are movable in unison relative to the first portion for adjustment.