Abstract: A distributed fiber-optic acoustic sensing system and a signal processing method. The distributed fiber-optic acoustic sensing system is based on a high spatial resolution distributed fiber-optic acoustic sensor. The interval between adjacent sensing units is centimeter or millimeter level. Through specific digital signal processing, signal enhancement can be realized, noise in the system and environment are suppressed, at the same time, problems such as interference fading is solved, and the sensor signal-to-noise ratio of subunits can be increased by two to three orders of magnitude. Each subunit can serve as an independent high-sensitivity sensor for sensing. The multiple subunits can form one or more new sensor arrays. The azimuth estimation and spatial orientation of signal sources can be realized by the array signal processing method.

Abstract: The present invention relates to a candle which includes a base unit and a candle body which is mounted to the base unit. The candle body includes a wick and a fibre optic running therethrough. The base unit includes a light sensor configured to detect light from the wick, when lit. There is additionally provided a light source configured to operate in dependence on detection of light by the light sensor.

Abstract: An image processing method and an electronic device are provided. The image processing method includes: displaying a first interface, where the first interface includes a first control; detecting a first operation on the first control; obtaining a first image stream in response to the first operation, where the first image stream is an image stream of first color space; converting the first image stream into a second image stream of second color space according to a demosaicing algorithm; performing downsampling and resampling on the second image stream to obtain a third image stream, where the third image stream is an image stream of the first color space, and a size of the third image stream is less than that of the first image stream; and performing image processing on the third image stream to obtain a fourth image stream.

Abstract: The present disclosure provides an expanded coating, a preparation method and use thereof, and a permanent magnet comprising same. The expanded coating described herein comprises pores and a filler resin arranged among the pores; the pores comprise at least a spheroid pore having a cross section with a long diameter and a short diameter; in the cross section of the expanded coating, the area of the spheroid pores accounts for 50%-60% of the cross-sectional area of the expanded coating. The permanent magnet of the present disclosure comprises the expanded coating. The expanded coating has high strength and can exhibit excellent mechanical properties and corrosion resistance at high temperatures (such as 170° C.), with a shear strength greater than 2 MPa, a tensile strength greater than 2 MPa, an oil resistance greater than 1800 h and a neutral salt spray performance greater than 288 h at 170° C.

Abstract: A data processing method, a data processing apparatus and a storage medium. The data processing method includes: receiving first data comprising at least one piece of second data (S101); transmitting the at least one piece of second data to at least one first data transmission channel (S102); sending, according to link cross information of a Printed Circuit Board (PCB), data of the at least one first data transmission channel to at least one corresponding data transmission link (S103); respectively receiving at least one piece of third data based on at least one port (S401); and sending, according to a channel identifier of request information, the at least one piece of third data to a corresponding data reconstitution link (S402).

Abstract: This application discloses a downmixed signal calculation method and apparatus. The method includes: when a current frame or a previous frame of the current frame of a stereo signal is not a switching frame and a residual signal in the current frame or the previous frame does not need to be encoded, obtaining a second downmixed signal in the current frame and a downmix compensation factor of the current frame, correcting the second downmixed signal in the current frame based on the downmix compensation factor of the current frame, to obtain the first downmixed signal in the current frame and determining the first downmixed signal in the current frame as a downmixed signal in the current frame in a preset frequency band.

Abstract: Embodiments of this application disclose a three-dimensional audio signal processing method and apparatus, to implement sound field classification of a three-dimensional audio signal, to accurately identify the three-dimensional audio signal. An embodiment of this application provides a three-dimensional audio signal processing method, including: performing linear decomposition on a current frame of a three-dimensional audio signal, to obtain a linear decomposition result; obtaining, based on the linear decomposition result, a sound field classification parameter corresponding to the current frame; and determining a sound field classification result of the current frame based on the sound field classification parameter.

Abstract: A condensation-recovery device for overpressure gas based on liquefied natural gas (LNG) cold energy, including a tank body and a condensation cavity provided on a bottom thereof. LNG is stored in the condensation cavity to condense boil-off gas (BOG). The condensation cavity includes a vertical hollow tube arranged in the tank body, and an engagement mechanism is provided on a bottom of the vertical hollow tube. The vertical hollow tube is configured such that the gas can experience preliminary contact with the LNG when flowing therein, and the gas will continuously enter the vertical hollow tube under the action of pressure difference. After entering the conical tube, the gas will be distributed along the cavity of the conical tube to spread downward, so as to increase a contact time of the gas and the LNG while avoiding expanding diffusion area of the gas after entering the LNG.

Abstract: Disclosed are compounds of Formula I, methods of using the compounds for inhibiting KRAS activity and pharmaceutical compositions comprising such compounds. The compounds are useful in treating, preventing or ameliorating diseases or disorders associated with KRAS activity such as cancer.

Abstract: The present application discloses regioselectively substituted cellulose esters, films made from the regioselectively substituted cellulose esters and methods for making the same. The regioselectively substituted cellulose esters are synthesized using trifluoroacetic anhydride and cellulose with various acyl donors or acyl donor precursors.

Abstract: Disclosed are heterocyclic compounds or their pharmaceutically acceptable salts with ferroptosis-inducing activity, Those compounds or their pharmaceutically acceptable salts can be used to treat cancer.

Abstract: A virtual scene playback method is disclosed, which comprises: receiving a scene playback instruction and determining playback parameters according to the scene playback instruction, wherein the playback parameters include playback space and playback time; querying virtual space information and user model information corresponding to the playback parameters; and generating virtual scene playback content according to the virtual space information and the user model information. The present disclosure can save all the information in the virtual scene and play back the virtual scene corresponding to specific space and time. A virtual scene playback apparatus, an electronic device and a storage medium are also disclosed, which also have the above beneficial effects.

Abstract: In a driving policy determining method, for each object, a first target motion trajectory of the object is calculated on a premise that the object does not collide with another object that moves based on an initial motion trajectory. Then, for the ego vehicle, a second target motion trajectory of the ego vehicle is calculated on a premise that the ego vehicle does not collide with another object that moves based on a first target motion trajectory. Then, a driving policy is determined based on the second target motion trajectory of the ego vehicle and a first target motion trajectory of at least one game object. The foregoing operations are repeated until the determined driving policy matches an initial driving policy.

Abstract: The present disclosure relates to window display methods and electronic devices. In one example window display method, an electronic device displays a first window and a second window, where a screen direction of the electronic device is a first direction, the screen direction is one of a portrait direction, a landscape direction, a reverse portrait direction, and a reverse landscape direction, and a display direction of the first window is the first direction. When detecting that the screen direction of the electronic device changes from the first direction to a second direction, the electronic device keeps a display direction of the second window unchanged, and rotates the first window, so that the display direction of the first window is the second direction.

Abstract: A light-emitting panel has a light-emitting area and an isolation area adjacent to the light-emitting area The light-emitting panel comprises a base substrate and a barrier structure, wherein the barrier structure is arranged on one side of the base substrate and located in the isolation area, and comprises a first isolation pattern, a second isolation pattern, a third isolation pattern and a fourth isolation pattern, which are sequentially arranged in a stacked manner, and the first isolation pattern is closer to the base substrate than the fourth isolation pattern; and an orthographic projection of the first isolation pattern on the substrate is located in an orthographic projection of the second isolation pattern on the base substrate, and an orthographic projection of the third isolation pattern on the base substrate is located in an orthographic projection of the fourth isolation pattern on the base substrate.

Abstract: A system for testing an assist function of electric vehicle wireless power transfer includes: a pit, a vehicle-assembly support platform, and an electromagnetic field strength measurement instrument. A ground-assembly support platform is arranged inside the pit, the vehicle-assembly support platform is arranged on an upper side of the ground-assembly support platform, and a to-be-tested member is arranged on an upper side of the ground-assembly support platform. A ground-assembly device coil is arranged on an upper surface of the ground-assembly support platform, a vehicle-assembly device coil is arranged inside the vehicle-assembly support platform, the ground-assembly device coil charges an entire vehicle, and the ground-assembly device coil further cooperates with the vehicle-assembly device coil to charge a vehicle component. A mechanical arm is arranged on ground of a test site, an interference member is arranged on a front end of the mechanical arm.

Abstract: The present invention relates to the fields of microorgan-isms, feed, food and ecological restoration, in particular to a strain for degrading deoxynivalenol (DON) and the use thereof. The strain has the deposit number CCTCC No. M 2020565. The strain can grow by means of taking the toxic compound DON as a sole carbon source, and convert the DON into chemical components for itself. The reaction process is irreversible, the reaction conditions are moderate, and secondary pollu-tion cannot be caused. The strain provided in the present invention can be used for preparing a biological detoxification preparation for DON. The strain provided in the present invention can be used for degrading DON in feed and food raw materials, primary processing products, deep processing products and related processing byproducts. The strain provided in the present invention can be applied to various ecosystems such as soil or bodies of water polluted by DON to achieve the purposes of DON degradation and ecological restoration.

Abstract: A tunnel automatic monitoring and measuring equipment and method based on fixed-point tour measurement are provided. The equipment includes a monitoring trolley that can move freely in the longitudinal direction of the tunnel, multiple automatic tracking and identification devices are set on the monitoring trolley, the automatic tracking and identification device is connected to the background processing system telecommunication; a monitoring points with reflective markings are arranged on the surface of the tunnel support structure, under the cooperation of the monitoring trolley and the automatic tracking and identification device, the reflective markings set on the tunnel support structure can be automatically measured at the fixed point to obtain the coordinate information of the relevant monitoring points; then, the deformation data of the support structure required in the construction process are extracted by coordinate information calculation.

Abstract: An actuator, the actuator is used for the camera unit. The actuator includes: a seat configured to be assembled with a first lens and a fluid lens of the camera unit; a stator assembly fixedly connected to the seat; a focusing mover assembly configured to be connected with the fluid lens; and an anti-shake mover assembly configured to be connected with the first lens. The focusing mover assembly is configured to move along a first direction of the seat by interacting with the stator assembly, for adjusting a curvature of the fluid lens, and the anti-shake mover assembly is configured to translate in a plane perpendicular to the first direction by interacting with the stator assembly, for driving the first lens to move.