Abstract: The present disclosure may provide a sound-producing device comprising a diaphragm and a housing. The housing may include a first sound guide hole and a second sound guide hole. The diaphragm may be disposed in the housing. When a user wears the sound-producing device, a distance between the first sound guide hole and the ear canal opening may be smaller than a distance between the diaphragm and the ear canal opening, a range of an included angle between a connection line between the first sound guide hole and the second sound guide hole and a connection line between the center of mass of the diaphragm and the ear canal opening may be smaller than 45°, and a distance between the second sound guide hole and the ear canal opening may be greater than the distance between the diaphragm and the ear canal opening.

Abstract: Disclosed is a combustion system design method based on a target heat release rate, which belongs to the technical field of diesel engine combustion chamber design. The method includes: obtaining an ideal heat release rate based on Sabathe-Miller cycle; simulating the ideal heat release rate based on a double-Wiebe function and obtaining the target heat release rate; constructing a mapping relation among the heat release rate, piston geometric parameters and fuel injection parameters, which includes target start of combustion being an function of fuel injection timing and ignition delay, premixed combustion parameters being functions of throat radius, injection pressure and nozzle diameter, and diffusion combustion being a function of piston pit depth; solving target piston geometric parameters and target fuel injection parameters based on the mapping relation; and then designing a combustion system.

Abstract: Provided is a system and method for the distributed networked test of electric vehicles based on a cloud platform, comprising a cloud computing platform and a plurality of remote test benches, wherein the remote test benches, being provided at least two, to form a remote distributed networked structure and transmit test data to the cloud computing platform; the cloud computing platform, being in real-time bidirectional data communication with the remote test bench and configured to receive each test data in real-time, perform a data cleaning, a data classing washing, a data fusion and a data mining, extract useful data information from the test data, build corresponding a data model and a mechanism model on the cloud computing platform according to historical data and a mechanism of control object, control for different test benches, and complete a fault diagnosis and an early warning.

Abstract: A method for designing an imaging optical system is a point-by-point calculation method based on characteristic light rays (FLR) and characteristic data points (FDP). The basic function of the point-by-point calculation method includes the following steps: according to the given object-image relationship, based on Fermat's principle and the law of retraction and reflection, calculating the propagation path of the FLR passing through a system and the FDP on each optical surface, to obtain a surface shape equation of each optical surface by fitting; and repeating the above process, to solve the surface shape equation of each optical surface one by one, and finally complete the design and solution of the entire imaging optical system.

Abstract: An array substrate includes a base substrate, a light-shielding pattern, a buffer pattern, an active layer, a gate insulating layer and a first passivation layer provided with a first via, a second via and a third via, and a source and a drain. An entire orthographic projection of the active layer on the base substrate coincides with an orthographic projection of at least part of the buffer pattern on the base substrate. The orthographic projection of the buffer pattern on the base substrate is within a border of an orthographic projection of the light-shielding pattern on the base substrate, and its area is less than an area of the orthographic projection of the light-shielding pattern on the base substrate. One of the source and the drain is coupled to the active layer through the first via, and another one is coupled to the active layer through the second via and the light-shielding pattern through the third via.

Abstract: This application provides a session handling method, a communications apparatus, and a communications system. The session handling method includes receiving, by an intermediate session management function (SMF), a request message sent by an access and mobility management function (AMF), where the request message includes a session identifier, and the intermediate SMF is an SMF selected by the AMF when user equipment (UE) moves outside of a service area of an anchor SMF. When a session corresponding to the session identifier is a local area data network (LADN) session, rejecting, by the intermediate SMF, the session corresponding to the session identifier. According to the technical solutions provided in this application, the user equipment can no longer access a service of a LADN after moving outside of the service area of the anchor SMF, which avoids a waste of service resources of the LADN.

Abstract: In one embodiment, a computer-implemented method for optimizing a controller of an autonomous driving vehicle (ADV) includes obtaining several samples, each sample having a set of parameters, iteratively performing, until a predetermined condition is satisfied: determining, for each sample, a score according to a configuration of the controller based on the set of parameters of the sample, applying a machine learning model to the samples and corresponding scores to determine a mean function and a variance function, producing a new sample as a minimum of a function of the mean function and the variance function with respect to an input space of the set of parameters, adding the new sample to the several samples, and outputting the new sample as an optimal sample, where parameters of the optimal sample are utilized to configure the controller to autonomously drive the ADV.

Abstract: A radio apparatus and system may include a means for modulating and/or demodulating an optical signal for respective transmission and/or reception of the optical signal using an optical channel connected to a remote radio unit. There may also be provided a means for performing, based on one or more pre-trained computational models, one or more operations on a digital signal corresponding to the optical signal for mitigating one or more non-linearities introduced by the optical modulating and/or demodulating means and the optical channel. The one or more pre-trained computational models may be pre-trained based on feedback data indicative of said one or more non-linearities.

Abstract: Some embodiments provide a vehicle that includes a protection system configured to mitigate hazards to vehicle occupants posed by dynamic elements located within proximity of the vehicle. The vehicle can, in response to determining that a dynamic element is moving along a trajectory that intersects a sweep volume of a vehicle portal, can selectively restrict operation of the portal so that an occupant is restricted from opening the portal into a volume through which the dynamic element may pass. The vehicle can restrict portal operation in response to detecting external dynamic elements that are not within an occupant's field of vision. The vehicle can communicate a limited selection of vehicle sensor data, including representations of a detected dynamic element, to a user device supporting an authorized user in response to detecting that the dynamic element is located within a certain proximity of the vehicle.

Abstract: Disclosed herein a system, a method and a device for dynamic scheduling between a head wearable display and a console is provided. The head wearable display can initiate, at a first time instance, a first downlink transmission to the console. The head wearable display can dynamically indicate, to the console, an end of the first downlink transmission, at a second time instance when transfer of data of the first downlink transmission is complete. The head wearable display can dynamically cause, relative to the second time instance, the console to begin an uplink transmission. The head wearable display can receive an indication to dynamically start a second downlink transmission, at a third time instance when transfer of data of the uplink transmission is complete.

Abstract: Vibration absorption tubing and a manufacturing method thereof. The manufacturing method includes: a solder placement step including: placing solder at solder placement portions in an inner cavity of an adaptor; a pipe fitting step including: fitting a corrugated pipe and the adaptor respectively to adaptor matching portions at corresponding sides of the adaptor, to communicate an adaptor inner cavity with an inner cavity of the corrugated pipe and inner cavities of external connection tubing; and fixing or limiting positions of the corrugated pipe, the adaptor, and the external connection tubing to obtain a tubing assembly; and a component brazing step including: performing furnace brazing on the tubing assembly of the external connection tubing to obtain a main vibration absorption tubing. The vibration absorption tubing has favorable brazing consistency, enhancing connection reliability of components.

Abstract: A controller performs a first operation in which a heat source device directly or indirectly heats water in a first channel of a heat exchanger and a second operation in which the heat source device directly or indirectly cools the water in the first channel of the heat exchanger after the first operation ends.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for operating a terminal in a wireless communication system, the method comprises determining a time-frequency structure of a downlink reference signal, and receiving, from a base station, the downlink reference signal according to the time-frequency structure.

Abstract: In one embodiment, an ADV is routed by executing a first driving scenario that is active. The first driving scenario is one of a plurality of driving scenario types, each driving scenario type being associated with one or more stages to be executed while a corresponding driving scenario type is active. Based on an environmental condition around the ADV, a second driving scenario is set as active. The ADV is routed by executing the second driving scenario. When the second driving scenario exits, execution of the first driving scenario resumes at the one or more stages of the first driving scenario that remains to be executed.

Abstract: Exemplary deposition methods may include delivering a silicon-containing precursor and a boron-containing precursor to a processing region of a semiconductor processing chamber. The methods may include delivering a dopant-containing precursor with the silicon-containing precursor and the boron-containing precursor. The dopant-containing precursor may include one or more of carbon, nitrogen, oxygen, or sulfur. The methods may include forming a plasma of all precursors within the processing region of the semiconductor processing chamber. The methods may include depositing a silicon-and-boron material on a substrate disposed within the processing region of the semiconductor processing chamber. The silicon-and-boron material may include greater than or about 1 at. % of a dopant from the dopant-containing precursor.

Abstract: Systems and methods are provided for smart-landmark-based positioning. Such methods may include detecting, using a sensor mounted on a vehicle, a landmark object, obtaining landmark information of the detected landmark object, the landmark information including identification of the landmark object and an encrypted location of the landmark object, transmitting, from the vehicle over a wireless network, a query including at least part of the obtained landmark information, receiving, by the vehicle over the wireless network, a query response including additional information of the landmark.

Abstract: This application relates to compounds of Formula (I): or pharmaceutically acceptable salts or stereoisomers thereof, which modulate the activity of adenosine receptors, such as subtypes A2A and A2B receptors, and are useful in the treatment of diseases related to the activity of adenosine receptors including, for example, cancer, inflammatory diseases, cardiovascular diseases, and neurodegenerative diseases.

Abstract: Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a substrate, an active structure layer disposed on the substrate, a first source-drain structure layer disposed on a side of the active structure layer away from the substrate, and a second source-drain structure layer disposed on a side of the first source-drain structure layer away from the substrate. The active structure layer includes a first active layer and a second active layer. The first source-drain structure layer includes a first active via and a first source-drain electrode, and the first source-drain electrode is connected to the first active layer through the first active via; and the second source-drain structure layer includes a second active via and a second source-drain electrode, and the second source-drain electrode is connected to the second active layer through the second active via.

Abstract: A steerable antenna comprising (1) a lower waveguide configured to direct radio frequency signals in a specific direction, (2) an upper waveguide positioned substantially parallel to the lower waveguide, wherein the upper waveguide is configured to direct the radio frequency signals in another direction substantially opposite to the specific direction, and (3) a plate coupled between the lower waveguide and the upper waveguide, wherein the plate includes one or more coupling elements that facilitate transferring the radio frequency signals between the lower waveguide to the upper waveguide. Various other apparatuses, systems, and methods are also disclosed.