Abstract: The present invention relates to a TFT liquid crystal display, more specifically, to a cholesteric liquid crystal display employing both field-induced nematic vertical alignment texture and field-induced eddy alignment texture as video astable states and cholesteric planer texture and focal conic texture as power-free bistable states. Thus, the display provides not only video speed motion pictures with unlimited grayscale but also excellent static images.

Abstract: A braking method for a vehicle is provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling an output of an electric braking torque according to the braking torque required by the vehicle; obtaining a current gradient and a current vehicle speed of the vehicle; and determining whether to control the vehicle to unload the electric braking torque, and whether to control the vehicle to apply a mechanical braking torque according to the current vehicle speed, the braking torque required by the vehicle, the deceleration required by braking, and the current gradient. A braking device for a vehicle and a vehicle are further provided.

Abstract: Provided are a wireless headset, an assembly method, an electronic device and a storage medium. The wireless headset includes a housing, a mainboard and a pressure sensitive component. The housing includes: a first chamber defined in a head portion of the wireless headset, and a second chamber defined in a rod portion of the wireless headset and in communication with the first chamber. The mainboard includes: a first circuit board disposed in the first chamber, a second circuit board disposed in the second chamber and provided with a relief portion, and an adapter circuit board disposed in the housing and configured to connect the first circuit board with the second circuit board. The pressure sensitive component is disposed in the second chamber and between the relief portion and the housing.

Abstract: A vehicle and a braking method and a device therefor are provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling the vehicle to output an electric braking torque according to the braking torque required by the vehicle; obtaining a current vehicle speed of the vehicle and an electric braking exit protection speed; and calculating an electric braking exit speed according to the braking torque required by the vehicle and the deceleration required by braking, and controlling the vehicle to unload the electric braking torque when the current vehicle speed is less than a larger one of the electric braking exit speed and the electric braking exit protection speed.

Abstract: A solar tracker system comprising a plurality of on sun trackers and a plurality of off sun tracker. Each tracker is selectively adjusted to achieve a desired power output of the solar power plant system in an example.

Abstract: The present invention relates to a gasification burner comprising a main burner, N-stage sub-burners arranged on the inner side of the main burner, where N is an integer greater than or equal to 1, the main burner and each stage of the sub-burners have independent fuel channels and oxidant channels respectively, the main burner and each stage of the sub-burners are arranged in a coaxial sleeves from outside to inside; the inner diameter of the main burner is larger than the outer diameter of the first stage of the sub-burners, and the inner diameter of each stage of the sub-burners is larger than the outer diameter of its next stage of the sub-burners; the gasification burner can ensure fuels and oxidants to be mixed fully and evenly in limited reaction space and residence time, accelerate combustion reaction rate, thereby improving fuel conversion rate and gasification performance; meanwhile, it can flexibly adjust flame shape without reducing the load of gasifier furnace by adjusting the load of the main bu

Abstract: An approach is provided in which the approach constructs a detection packet that includes a time to live indicator. The approach sends the detection packet from a virtual machine to one of multiple virtual network devices, wherein the virtual network device recognizes the detection packet based on the time to live indicator. The approach determines a network fault point based on receiving a notification packet from one of the multiple virtual network devices, and reports one of the multiple network interface devices that causes the network fault point.

Abstract: Provided herein is a reverse transcriptase mixture comprising a reverse transcriptase and a colored dye at a concentration in the range of 0.003%-1% (v/w). The colored dye may be visually observed during transfer of the mix from one vessel to another and addition of the mix to another mix can be confirmed by eye by observing the colored dye.

Abstract: A method for preparing an olefin-olefinic alcohol copolymer and an olefin-olefinic alcohol copolymer prepared by the method are provided. The catalyst used in the method for preparing the olefin-olefinic alcohol copolymer has a diimine metal complex as shown in Formula I.

Abstract: A terminal device and a sound-emitting apparatus arranged in the terminal device, where the terminal device includes a housing, a display is arranged on a surface of the housing, a notch is formed at an end of the display, and a camera system is arranged inside the housing. The camera system is arranged opposite to the notch in a direction perpendicular to the display, and a camera of the camera system is located inside the notch. A through-hole is arranged opposite to an opening of the notch in the housing in a direction parallel to the display.

Abstract: This application relates to the field of electronic device technologies, and in particular, to an electronic device. The electronic device includes a housing, a camera module, and a decorative part. The housing is provided with a mounting hole. The camera module includes a lens and a module body connected to the lens. The decorative part includes a decorative part body and a skirt structure connected to the decorative part body. The decorative part body is disposed on the periphery of the lens and disposed in the mounting hole. The skirt structure is provided with a notch. The notch is opposite to the module body. An orthographic projection of a part of the module body opposite to the notch onto a plane of the skirt structure does not fall into the skirt structure.

Abstract: A braking method for a vehicle is provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling an output of an electric braking torque according to the braking torque required by the vehicle; obtaining a current gradient and a current vehicle speed of the vehicle; and determining whether to control the vehicle to unload the electric braking torque, and whether to control the vehicle to apply a mechanical braking torque according to the current vehicle speed, the braking torque required by the vehicle, the deceleration required by braking, and the current gradient. A braking device for a vehicle and a vehicle are further provided.

Abstract: A vehicle and a braking method and a device therefor are provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling the vehicle to output an electric braking torque according to the braking torque required by the vehicle; obtaining a current vehicle speed of the vehicle and an electric braking exit protection speed; and calculating an electric braking exit speed according to the braking torque required by the vehicle and the deceleration required by braking, and controlling the vehicle to unload the electric braking torque when the current vehicle speed is less than a larger one of the electric braking exit speed and the electric braking exit protection speed.

Abstract: A braking method includes: obtaining a first state information of the vehicle, which includes a vehicle mass and a deceleration required by braking; calculating a braking torque according to the first state information, and controlling the vehicle to output an electric braking torque according to the braking torque; obtaining a current vehicle speed and a mechanical braking application delay time; calculating an electric braking exit speed according to the braking torque required by the vehicle and the deceleration required by braking; calculating a mechanical braking application speed according to the mechanical braking application delay time, the deceleration required by braking, and the electric braking exit speed; and determining whether to control the vehicle to unload the electric braking torque, and whether to control the vehicle to apply a mechanical braking torque according to the current vehicle speed, the electric braking exit speed, and the mechanical braking application speed.

Abstract: A braking method for a vehicle is provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling an output of an electric braking torque according to the braking torque required by the vehicle; obtaining a current vehicle speed of the vehicle and a maximum electric braking exit speed; and; controlling, if the deceleration required by braking of the vehicle changes to zero, the vehicle to unload the electric braking torque when the current vehicle speed is less than the maximum electric braking exit speed. A braking device for a vehicle and a vehicle are further provided.

Abstract: The invention discloses a superconducting gravity gradiometer and a sensitivity improvement method thereof including a pair of superconducting test masses, a pair of negative-stiffness superconducting coils, a pair of positive-stiffness superconducting coils, and a superconducting circuit coupling the test masses into two-degree-of-freedom superconducting magnetic spring oscillators. Superconducting wires are used to connect the negative-stiffness superconducting coils in series to form a superconducting loop, the differential mode stiffness of the two-degree-of-freedom superconducting magnetic spring oscillators is reduced, and the ratio of the common mode stiffness to the differential mode stiffness is increased.

Abstract: An electronic device is provided. A lateral fingerprint recognition apparatus is in contact with a function button. An accommodating structure is arranged in the lateral fingerprint recognition apparatus. A stopping assembly is arranged on a side of a fingerprint hole close to the function button. Inserting a partial area of the stopping assembly into the accommodating structure enables the lateral fingerprint recognition apparatus, when pressed, to move in movement space of the accommodating structure on the side of the fingerprint hole close to the function button, so as to limit a displacement amount of the lateral fingerprint recognition apparatus within a specific range, implementing the functions of the lateral fingerprint recognition apparatus and of the function button, and preventing the lateral fingerprint recognition apparatus from being displaced from the originally designed position.

Abstract: A structure of an electronic device and an electronic device are disclosed. The structure includes: a cover, a fingerprint decorative component, and a fingerprint sensor. The cover covers a surface of the electronic device, and the cover has a first through hole. The fingerprint decorative component is built in the first through hole, the fingerprint decorative component includes a side wall of the fingerprint decorative component and a bottom wall of the fingerprint decorative component that are integrally connected, the side wall of the fingerprint decorative component is fastened to the cover by using glue. The fingerprint sensor is accommodated in the fingerprint decorative component. The fingerprint decorative component is fastened to the cover by using the glue, and no additional fastening plate and screw is required for fastening, thereby improving overall space utilization of the electronic device.

Abstract: Provided are a protecting trolley and a construction method of rock burst prewarning protection system in non-contact tunnel construction. The protecting trolley includes a framework, a walking assembly, a rockfall buffering assembly, a spraying assembly and a rock burst prewarning system. The rockfall buffering assembly includes an arch frame in a fixed connection with the framework and a protecting net fixed on the arch frame. The spraying assembly includes a track car in connection with the rockfall buffering assembly and a spraying hose fixed on the track car, and the spraying hose sprays towards the surrounding rock. The rock burst prewarning assembly includes a thermosensitive infrared sensor used for detecting the temperature of the surrounding rock and a highly sensitive laser sensor used for detecting the deformation of the surrounding rock.

Abstract: A solar tracker system comprising a plurality of on sun trackers and a plurality of off sun tracker. Each tracker is selectively adjusted to achieve a desired power output of the solar power plant system in an example.