Abstract: The present disclosure provides an acousto-optic device comprising an acousto-optic layer, an electromagnetic radiation source, and an acoustic source. In an embodiment, the acousto-optic layer has a substantially planar shape defining an x-y plane and functions as an optical waveguide to optical waves and as an acoustic waveguide to acoustic waves propagating in the x-y plane. In an embodiment, the electromagnetic radiation source is optically coupled to the acousto-optic layer and configured to deliver electromagnetic radiation therein. In an embodiment, the acoustic source is acoustically coupled to the acousto-optic layer and configured to deliver acoustic energy therein and is configured to adjust a wavelength of the acoustic energy. In an embodiment, the electromagnetic radiation source and the acoustic energy source are positioned to provide an intersection between the electromagnetic radiation and the acoustic energy, which at least partially scatters light from the intersection out of the x-y plane.

Abstract: An apparatus for dismounting and mounting a high-voltage line T-connector in a hot-line operation includes a lifting platform, a four-axis platform and an end-effector mechanism; the four-axis platform and the end-effector mechanism are both electrically conductive structures; the four-axis platform is fixedly mounted on the top of the lifting platform, and an insulating layer is provided between the four-axis platform and the lifting platform; the four-axis platform is movable in the X direction, the Y direction, and the Z direction, and is rotatable around the Z direction; the four-axis platform is provided with an equipotential mechanism; the end-effector mechanism is detachably fastened to the four-axis platform; and a bolt loosening/tightening mechanism or a nut cutting device capable of moving in the X direction, the Y direction, and the Z direction is provided on the end-effector mechanism.

Abstract: In an embodiment, an amplifier circuit includes a second stage that includes a first switch circuit including first and second terminals, a plurality of resistive elements coupled between the first and second terminals of the first switch circuit, and a plurality of switches configured to control an equivalent resistance between the first and second terminals of the first switch circuit. During play mode, the second stage has a gain between the input of the second stage and the output of the second stage of a first value. During a transition from mute mode to play mode, the amplifier circuit is configured to progressively increase the gain of the second stage from a second value to the first value. During a transition from play mode to mute mode, the amplifier circuit is configured to progressively decrease the gain of the second stage from the first value to the second value.

Abstract: A sea creature cleaning robot for an intake tunnel for a nuclear power plant includes a frame, cutter assemblies, and walking wheel assemblies; the frame is used for mounting and fixing cutter mounting seats and crawler wheels; the walking wheel assemblies mounted on the frame enable the entire device to normally walk in a tunnel; the cutter assemblies control the height of cutters by means of hydraulic cylinders to make the cutters contact the inner wall of the tunnel, and the hydraulic cylinders drive the saw-toothed cutters to move back and forth to remove sea creatures attached to the inner wall of the tunnel; the cutter assemblies are uniformly distributed on the frame, so as to ensure full coverage of the cleaning range of the cross section of the tunnel. The robot can clean sea creatures in tunnels in place of manual work to significantly improve the cleaning efficiency.

Abstract: The present disclosure relate to allocating electronic resources. In some arrangements, a server configures allocable electronic resources for a live streaming room in response to receiving a first configuration request from a first client. The first configuration request is configured to indicate a first configuration operation performed by an anchor to the live streaming room, and the allocable electronic resources are associated to a target commodity corresponding to the live streaming room. The server acquires an allocation request sent by a second client, wherein the allocation request is triggered by an interactive operation of an audience of the second client in the live streaming room. The server allocates an electronic resource from the allocable electronic resources to the audience of the second client, in response to the allocation request, wherein the allocated electronic resource is used by the audience for completing an order operation about the target commodity.

Abstract: An apparatus for dismounting and mounting a high-voltage line T-connector in a hot-line operation is disclosed. The apparatus comprises a lifting platform (1), a four-axis platform (2) and an end-effector mechanism (3); the four-axis platform (2) and the end-effector mechanism (3) are both electrically conductive structures; the four-axis platform (2) is fixedly mounted on the top of the lifting platform (1), and an insulating layer is provided between the four-axis platform (2) and the lifting platform (1); the four-axis platform (2) is movable in the X direction, the Y direction, and the Z direction, and is rotatable around the Z direction; the four-axis platform (2) is provided with an equipotential mechanism (26); the end-effector mechanism (3) is detachably fastened to the four-axis platform (2); and a bolt loosening/tightening mechanism (312) or a nut cutting device (36) capable of moving in the X direction, the Y direction, and the Z direction is provided on the end-effector mechanism (3).

Abstract: A method for automatic driving at an intersection, an electronic device, storage medium, and an automatic driving vehicle, which relate to a field of a data processing technology, in particular to a field of automatic driving. The method includes: determining a first initial convergence location information between an obstacle and a vehicle, a current location information of the obstacle, and an orientation information of the obstacle; determining a target convergence location information between the obstacle and the vehicle according to the first initial convergence location information, the current location information of the obstacle and the orientation information of the obstacle; determining a target travelling plan from a plurality of candidate travelling plans for the vehicle according to the target convergence location information and a current travelling parameter of the obstacle; and controlling the automatic driving of the vehicle according to the target travelling plan.

Abstract: A sea creature cleaning robot for an intake tunnel for a nuclear power plant includes a frame, cutter assemblies, and walking wheel assemblies; the frame is used for mounting and fixing cutter mounting seats and crawler wheels; the walking wheel assemblies mounted on the frame enable the entire device to normally walk in a tunnel; the cutter assemblies control the height of cutters by means of hydraulic cylinders to make the cutters contact the inner wall of the tunnel, and the hydraulic cylinders drive the saw-toothed cutters to move back and forth to remove sea creatures attached to the inner wall of the tunnel; the cutter assemblies are uniformly distributed on the frame, so as to ensure full coverage of the cleaning range of the cross section of the tunnel. The robot can clean sea creatures in tunnels in place of manual work to significantly improve the cleaning efficiency.

Abstract: A method for processing network data can include: displaying an item setting interface, the item setting interface being configured to set an allowable transaction condition of an item; acquiring an allowable transaction condition of a target item in response to an operation of setting a transaction condition for the target item; and sending an item issuing request to a server, the item issuing request being configured to instruct the server to issue the target item to a live-streaming room and to open a transaction authority of the target item to an audience account, and the audience account meeting the allowable transaction condition of the target item.

Abstract: The present disclosure provides an acousto-optic device comprising an acousto-optic layer, an electromagnetic radiation source, and an acoustic source. In an embodiment, the acousto-optic layer has a substantially planar shape defining an x-y plane and functions as an optical waveguide to optical waves and as an acoustic waveguide to acoustic waves propagating in the x-y plane. In an embodiment, the electromagnetic radiation source is optically coupled to the acousto-optic layer and configured to deliver electromagnetic radiation therein. In an embodiment, the acoustic source is acoustically coupled to the acousto-optic layer and configured to deliver acoustic energy therein and is configured to adjust a wavelength of the acoustic energy. In an embodiment, the electromagnetic radiation source and the acoustic energy source are positioned to provide an intersection between the electromagnetic radiation and the acoustic energy, which at least partially scatters light from the intersection out of the x-y plane.

Abstract: The present disclosure relate to allocating electronic resources. In some arrangements, a server configures allocable electronic resources for a live streaming room in response to receiving a first configuration request from a first client. The first configuration request is configured to indicate a first configuration operation performed by an anchor to the live streaming room, and the allocable electronic resources are associated to a target commodity corresponding to the live streaming room. The server acquires an allocation request sent by a second client, wherein the allocation request is triggered by an interactive operation of an audience of the second client in the live streaming room. The server allocates an electronic resource from the allocable electronic resources to the audience of the second client, in response to the allocation request, wherein the allocated electronic resource is used by the audience for completing an order operation about the target commodity.

Abstract: An amplifier circuit includes an amplifier unit that is configured to receive an input signal and generate a switching output signal. A level shifter is configured to shift the amplitude of the input signal to have a shifted amplitude that is proportional to a peak-to-peak amplitude of the switching output signal.

Abstract: An amplifier circuit includes an amplifier unit that is configured to receive an input signal and generate a switching output signal. A level shifter is configured to shift the amplitude of the input signal to have a shifted amplitude that is proportional to a peak-to-peak amplitude of the switching output signal.