Abstract: The present disclosure provides a liquid crystal grating and a driving method therefor, and a three-dimensional (3D) display device. The liquid crystal grating includes: a first substrate; a second substrate, where the second substrate and the first substrate are oppositely arranged; a liquid crystal layer, where the liquid crystal layer is located between the first substrate and the second substrate; and a first transparent grating electrode layer located at a side, facing the liquid crystal layer, of the first substrate; where the first transparent grating electrode layer includes a plurality of first strip-shaped electrodes extending in a first direction and arranged at intervals in a second direction, and each of at least part of the first strip-shaped electrodes is divided in the first direction into at least two first strip-shaped sub-electrodes arranged independently.

Abstract: It is advantageous for a vehicle to detect road wetness or related environmental conditions. This is particularly true for self-driving vehicles, which can then adjust the manner of automated operation of the vehicle to increase safety by reducing speed, braking earlier, adjusting internal estimates of road traction parameters, or adjusting autonomous operation in some other manner. It is difficult to directly measure road wetness (e.g., using spectroscopy or other methods directed at the road surface), however, it is possible to indirectly estimate road wetness based on road noise audio signals detected via one or more microphones disposed on the vehicle. The location of the microphones, the type of post-processing applied to the audio signals, or other factors can be adapted to increase the useful road wetness-related content of such audio signals while reducing the presence of engine noise, road noise, or other confounding signals.

Abstract: Disclosed are chemically end-capped polypiperazine pyrophosphate-modified ammonium polyphosphate with high temperature resistance and precipitation resistance, a preparation method therefor, and an apparatus and application thereof. The chemically end-capped polypiperazine pyrophosphate-modified ammonium polyphosphate flame retardant is formed by polypiperazine pyrophosphate modification based on ammonium polyphosphate, followed by end capping; and the polypiperazine pyrophosphate is prepared by polymerization of an intermediate piperazine diphosphate obtained through dehydration condensation of phosphoric acid and piperazine. The chemically end-capped polypiperazine pyrophosphate-modified ammonium polyphosphate flame retardant of the present solution is prepared by using special equipment, which ensures whiteness and thermal stability of product, and improves properties of ammonium polyphosphate.

Abstract: An oxygen removal module, a fresh-keeping device and a refrigerator. The oxygen removal module comprises: an electrolyte tank provided with a water inlet; and a water tank provided with a water outlet, the water outlet being connected to the water inlet through a first pipeline, to supplement water to the electrolyte tank by means of the water tank.

Abstract: Evaluation of a health condition includes obtaining a correlation between dietary habits and health issues of a plurality of reference users. The correlation is determined based on reference patterns. Each of the reference patterns indicates temporal characteristics of at least one dietary habit and at least one health issue of a reference user of the plurality of reference users. A target pattern of a target user is determined at least in part based on a profile for the target user. The target pattern at least indicates temporal characteristics of at least one dietary habit of the target user. An evaluation of a health condition of the target user is generated based on the target pattern and the correlation.

Abstract: One or more embodiments of the present disclosure relates to a method and system for processing motion data. The method includes obtaining motion data of a user at different stride frequencies, the motion data at least including electromyographic (EMG) signals; determining a physiological state of the user based on the motion data; and determining a recommended stride frequency for the user based on the physiological state.

Abstract: The technology relates to using on-board sensor data, off-board information and a deep learning model to classify road wetness and/or to perform a regression analysis on road wetness based on a set of input information. Such information includes on-board and/or off-board signals obtained from one or more sources including on-board perception sensors, other on-board modules, external weather measurement, external weather services, etc. The ground truth includes measurements of water film thickness and/or ice coverage on road surfaces. The ground truth, on-board and off-board signals are used to build the model. The constructed model can be deployed in autonomous vehicles for classifying/regressing the road wetness with on-board and/or off-board signals as the input, without referring to the ground truth.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for training and using machine learning models to generate graphical user interfaces from textual descriptions.

Abstract: An optical imaging system includes, sequentially from an object side to an image side along an optical axis, a first lens (L1) having a positive refractive power and a convex object-side surface (S1); a second lens (L2) having a refractive power; a third lens (L3) having a refractive power; a fourth lens (L4) having a positive refractive power, a concave object-side surface (S7) and a convex image-side surface (S8); and a fifth lens (L5) having a negative refractive power.

Abstract: Disclosed are chemically end-capped melamine pyrophosphate with high temperature resistance and precipitation resistance, a preparation method and apparatus thereof, and an application thereof in flame-retardant nylon. End-capping treatment of melamine pyrophosphate enhances flame retardancy and precipitation resistance of a flame retardant, and melamine pyrophosphate is used for producing high-strength flame-retardant nylon, which improves product performance. A special flame-retardant preparation device is also used, and appropriate process flow and parameter design further improves comprehensive properties of the flame retardant, including whiteness and a 1% thermal decomposition temperature. The present technical solution can overcome technical defects of the melamine pyrophosphate flame retardant in the prior art including non-ideal properties in a flame retardant effect and stability, as well as difficulty to improve the comprehensive properties of the flame-retardant nylon.

Abstract: New question and answer (QA) pairs can be automatically discovered from a corpus of data such as online chats and conversations. Newly discovered QA pairs can augment QA database, which can be used by a computer processor or device, e.g., by a chatbot, an automated machine, and/or another. Existing QA knowledge can be used to learn the structures of QA knowledge distribution in conversations, and new QA knowledge can be automatically learned through the structure of learned QA knowledge distribution in conversations. The structure of learned QA knowledge distribution can be refined by adding more semantics based on labeled data.

Abstract: A standard circuit for far-end crosstalk of a CAT 6A, including a first network connector and a second network connector. The first network connector includes a first transmitted signal pair and a first received signal pair. The second network connector is connected to the first network connector, and includes a second transmitted signal pair and a second received signal pair. The second transmitted signal pair is connected to the first transmitted signal pair. A first load is connected in series between the second received signal pair. A standard for far-end crosstalk of the CAT 6A is also provided.

Abstract: Embodiments of the present disclosure provide a communication method, a network node, a storage medium and a program product, and relate to fields such as communication and artificial intelligence. In an example method, a first network node determines a first retransmission UE, determines an MU pairing recommendation result using a first AI network based on the first retransmission UE, and transmits the MU pairing recommendation result to a second network node, so that the computation of MU scheduling of the second network node can be assisted, and the computation complexity of MU scheduling of the second network node can be reduced.

Abstract: Embodiments of the disclosure provide a method, a device, an apparatus, and a storage medium for video production. The method includes: presenting a text setup interface in a displayed video producing window; receiving a first trigger operation; displaying object attribute information corresponding to the video production object in the first information display area; receiving a second trigger operation; and displaying, in the second information display area, video related text corresponding to the video production object. According to the method, a simple and easy operation video production platform is provided for a video producer. A text setting interface of a video to be manufactured is presented on the video production platform, and a function item for video text generation is provided for the video producer.

Abstract: An oxygen removal module, a fresh-keeping device and a refrigerator. The oxygen removal module comprises: an electrolyte tank provided with a water inlet; and a water tank provided with a water outlet, the water outlet being connected to the water inlet through a first pipeline, to supplement water to the electrolyte tank by means of the water tank.

Abstract: A method and system for fingerprint positioning based on 5G multi-beam downlink signals, includes: extracting multi-beam SSB from 5G downlink signals, and obtaining multi-beam SSS signal and DM-RS signal from multi-beam SSB; calculating multi-beam reference signal received power RSRP based on multi-beam SSS signal and DM-RS signal; calculating the RSSI of 5G downlink synchronization channel based on multi-beam SSB autocorrelation, and calculating the multi-beam reference signal received quality RSRQ based on multi-beam RSRP and RSSI; stacking the multi-beam RSRP and RSRQ to form multi-beam fingerprint features; inputting multi-beam fingerprint characteristic into neural networks, and the neural networks output positioning results.

Abstract: This document also discloses a toothbrush head for an electric toothbrush. The head includes a base having an opening for receiving a drive shaft of an electric toothbrush. The head also includes a coupling member having a cylindrical sidewall that surrounds a cavity for receiving the drive shaft. The coupling member is disposed within the base and there is a gap between a bottom surface of the base and a bottom surface of the coupling member.

Abstract: A system, computer program product, and a computer implemented method are provided for interfacing with a virtual dialog environment to dynamically and optimally collected context for problem diagnosis and resolution. A context model is leveraged to identify context entities, and one or more corresponding context collection mechanisms. The context model is implemented in real-time to facilitate dynamic selection of one or more of the identified context collection mechanisms, which are selectively subject to execution to resolve the problem diagnosis.

Abstract: A motor control device includes: a manual steering command value generation unit that generates a manual steering command value; an integrated angle command value calculation unit that calculates an integrated angle command value by adding the manual steering command value to an automatic steering command value provided in a driver assist mode; and a control unit that performs angle control on an electric motor for steering angle control based on the integrated angle command value. The manual steering command value generation unit generates the manual steering command value based on an equation of motion including road reaction force characteristic coefficients. The motor control device further includes a road reaction force characteristic changing unit that changes a value of at least one of the road reaction force characteristic coefficients included in the equation of motion, based on vehicle environment information that is information on an environment in which a vehicle travels.