Abstract: A method for establishing a biological model on joint toxicity of Caenorhabditis elegans and an application thereof are provided. The method for establishing the biological model includes adding the L1-stage Caenorhabditis elegans to a mixed system of working solution of mycotoxins containing tenuazonic acid and penicillin, K-medium solution and E. coli OP50 to obtain L1-stage Caenorhabditis elegans. The biological model indicates that TeA and PAT have a synergistic effect on the growth, development and reproductive ability of Caenorhabditis elegans, and their toxicity mechanism is related to inducing nematodes and stimulating transcriptional factors of Daf-16 genes. The biological model and detection method are simple to operate and its test period is short.

Abstract: A method and a system for recommending a target garment matching an inputted garment. The method includes: extracting attributes from text description and image of the inputted garment to obtain extracted attributes; querying a knowledge graph using the extracted attributes to obtain matched attributes; retrieving candidate products from a garment pool using the matched attributes; extracting features from the inputted garment and the candidate products; determining the target garment from the candidate products based on grading scores between the features of the inputted garment and the features of the candidate products; and recommending the target garment. The knowledge graph includes nodes corresponding to type of clothes, category of clothes, attribute keys, values of attribute keys, context keys, values of context keys, combination of the values of the attribute keys and the type of clothes, and combination of the value of the attribute keys and the category of clothes.

Abstract: Provided is a detection apparatus for a photovoltaic component, including a detection device and a control device. An input terminal of the detection device is connected to an output terminal of the breaking device. The detection device is configured to detect, based on at least one of a voltage and a current outputted from the photovoltaic component, whether the photovoltaic component and a connection circuit for the photovoltaic component operate normally. The control device is connected with the breaking device and the detection device. The control device is configured to control to switch on the breaking device, to transmit the at least one of a voltage and a current outputted from the photovoltaic component to the detection device.

Abstract: The invention relates to a GaN-based trench metal oxide Schottky barrier diode and a preparation method therefor. The device structure from bottom to top includes: an ohmic contact metal layer covering a substrate i.e., cathode; a GaN self-supporting substrate; an n-type lightly doped epitaxial layer; a p-type high-concentration GaN layer arranged in parallel; a dielectric layer in the trench; a metal layer convering the upper surface of the device i.e., the anode. The p-type high-concentration GaN layer with high carrier concentration can be obtained by using a selective area epitaxial method to form the p-type high-concentration GaN layer. Then the dielectric layer is deposited, and a contact hole is provided on the dielectric layer, subsequently the anode metal is connected to the p-type high-concentration GaN layer through the contact hole, forming the ohmic contact.

Abstract: Provided are a visual positioning method, a non-transitory computer-readable storage medium and an electronic device. Surface normal vectors of a current image frame is obtained. A first transformation parameter between the current image frame and a reference image frame is determined, by projecting the surface normal vectors to a Manhattan coordinate system. A matching operation between feature points of the current image frame and feature points of the reference image frame is performed, and a second transformation parameter between the current image frame and the reference image frame is determined based on a matching result. A target transformation parameter is obtained, based on the first transformation parameter and the second transformation parameter. A visual localization result corresponding to the current image frame is output, based on the target transformation parameter.

Abstract: A temperature measurement method includes obtaining a target temperature of a to-be-measured region based on a temperature measurement model and an obtained infrared image of the to-be-measured region; and outputting the target temperature, where the temperature measurement model is a temperature measurement model obtained by training a neural network based on an infrared image of a black body and an infrared image of a preset region.

Abstract: In one embodiment, a method includes generating audio segments from a speech signal, generating latent representations that respectively correspond to the audio segments, the latent representations comprising a first subset and a second subset, generating quantized representations that respectively correspond to the latent representations, masking the second subset of the latent representations, using a machine-learning model to process the first subset of the latent representations and the masked second subset of the latent representations to generate contextualized representations that respectively correspond to the latent representations, pre-training the machine-learning model based on comparisons between (1) a subset of the contextualized representations that respectively correspond to the masked second subset of the latent representations and (2) a subset of the quantized representations that respectively correspond to the masked second subset of the latent representations, and training the pre-trained

Abstract: Systems and methods for assessing vehicle operation are provided. According to certain aspects, an electronic device may receive and analyze image data depicting an individual located within a vehicle. The electronic device may also access and compile certain data related to an environment of the vehicle, and specifically to the vehicle's position relative to the sun. According to embodiments, the electronic device may determine, based on the accessed data, whether the vehicle is traveling into a direction of the sun, and may generate and record an indication of the same.

Abstract: Systems and methods for assessing vehicle operation are provided. According to certain aspects, an electronic device may receive and analyze image data depicting an individual located within a vehicle. The electronic device may also access and compile certain data related to an environment of the vehicle, and specifically to the vehicle's position relative to the sun. According to embodiments, the electronic device may determine, based on the accessed data, whether the vehicle is traveling into a direction of the sun, and may generate and record an indication of the same.