Abstract: A robot for pond desilting is provided, which includes a frame, a lead screw sliding table, and a suction pipe. An end of the frame is provided with a pressure-resistant cabin. A lead screw base is disposed on the lead screw sliding table. A rotary lead screw is disposed on the lead screw sliding table. The lead screw base is disposed on the rotary lead screw. Waterproof motors are disposed above the lead screw base, a pump body is disposed in the frame, and the suction pipe is disposed at an end of the pump body. When the robot is placed at the bottom of the pond, the motor inside the pressure-resistant cabin drives the power wheels to rotate, the power wheels drive the tracks to rotate around the power wheels, bearing wheels, and tension wheels, thereby driving the frame to move.

Abstract: A generator control system capable of realizing series-parallel connection comprises a first generator, a second generator, a first inverter and a second inverter, wherein a power output terminal of the first generator is connected to a power input terminal of the first inverter, and a power output terminal of the second generator is connected to a power input terminal of the second inverter. The generator control system further comprises a series-parallel connection box, and the first inverter and the second inverter are connected to the series-parallel connection box. Various voltages and power can be provided through the change-over switch.

Abstract: The invention discloses a bamboo chip integrated material. The bamboo chip integrated material is formed by a plurality of lengthened bamboo chips which are glued and overlaid; each lengthened bamboo chip is formed by a plurality of bamboo chip units which sequentially and continuously mesh and are butted; sharp teeth and grooves are formed in the two ends in the length direction of the bamboo chip units, wherein the sharp tooth of each bamboo chip unit and the groove of the corresponding bamboo sheet unit are matched to form a meshing butt-joint part, and the meshing butt-joint parts of the adjacent lengthened bamboo chips are arranged in a staggered mode; and each bamboo chip unit has a thickness of 4-12 mm and a width of 15-50 mm.

Abstract: A method for urban scene reconstruction uses the top view of a scene as priori information to generate a UVA initial flight path, optimizes the initial path in real time, and realizes 3D reconstruction of the urban scene. There are four steps: (1): to analyze the top view of a scene, obtain the scene layout, and generate a UAV initial path; (2): to reconstruct the sparse point cloud of the building and estimate the building height according to the initial path, combine the scene layout to generate a rough scene model, and adjust the initial path height; (3): to use the rough scene model, sparse point cloud and the UAV flight trajectory to obtain the scene coverage confidence map and the details that need close-ups, optimize the flight path in real time; and (4): to obtain high resolution images, reconstruct them to obtain a 3D model of the scene.

Abstract: A method for urban scene reconstruction uses the top view of a scene as priori information to generate a UVA initial flight path, optimizes the initial path in real time, and realizes 3D reconstruction of the urban scene. There are four steps: (1): to analyze the top view of a scene, obtain the scene layout, and generate a UAV initial path; (2): to reconstruct the sparse point cloud of the building and estimate the building height according to the initial path, combine the scene layout to generate a rough scene model, and adjust the initial path height; (3): to use the rough scene model, sparse point cloud and the UAV flight trajectory to obtain the scene coverage confidence map and the details that need close-ups, optimize the flight path in real time; and (4): to obtain high resolution images, reconstruct them to obtain a 3D model of the scene.

Abstract: Apparatuses and methods are disclosed for cluster switching. An exemplary method may include synchronizing original data on a first cluster to a second cluster after starting to switch clusters. A priority of the original data on the second cluster is set to a lower priority. The method may also include responding to a write operation request on the second cluster in the period of synchronizing the original data on the first cluster to the second cluster. A priority of new data corresponding to the write operation request is set to a higher priority. A version of data with a higher priority can overwrite another version of data. The method may further include responding to the write operation request on the second cluster after synchronizing the original data on the first cluster to the second cluster.

Abstract: Apparatuses and methods are disclosed for cluster switching. An exemplary method may include synchronizing original data on a first cluster to a second cluster after starting to switch clusters. A priority of the original data on the second cluster is set to a lower priority. The method may also include responding to a write operation request on the second cluster in the period of synchronizing the original data on the first cluster to the second cluster. A priority of new data corresponding to the write operation request is set to a higher priority. A version of data with a higher priority can overwrite another version of data. The method may further include responding to the write operation request on the second cluster after synchronizing the original data on the first cluster to the second cluster.

Abstract: A slot-fed Yagi aerial includes: a cable, a reflector, an active dipole and directors, wherein, the reflector, the active dipole, etc. are provided on a support tube; the feeding section of the Yagi aerial is of a shielded slot structure in which the distance between the ends of the slot is approximately one half of the wavelength of the electromagnetic signal desired to be received; the two pieces of thin metal rods composing the half wavelength dipole are located at two external sides of the slot; the outer conductor of the cable is connected to one side of the slot, and the inner conductor of the cable is connected to the other side of the slot or the inner conductor of the cable isolated by a dielectric layer is wound around at the other side of the slot, so as to realize a direct connection feed or a coupling feed.

Abstract: A slot-fed Yagi aerial includes: a cable, a reflector, an active dipole and directors, wherein, the reflector, the active dipole, etc. are provided on a support tube; the feeding section of the Yagi aerial is of a shielded slot structure in which the distance between the ends of the slot is approximately one half of the wavelength of the electromagnetic signal desired to be received; the two pieces of thin metal rods composing the half wavelength dipole are located at two external sides of the slot; the outer conductor of the cable is connected to one side of the slot, and the inner conductor of the cable is connected to the other side of the slot or the inner conductor of the cable isolated by a dielectric layer is wound around at the other side of the slot, so as to realize a direct connection feed or a coupling feed.

Abstract: The subject disclosure relates to microfluidic devices, systems and methodologies that facilitate generation of droplets, control, and/or manipulation thereof with electrorheological (ER) fluids. In one aspect, ER fluids can be employed with a carrier fluid or as a carrier fluid to enable droplet generation, control, and/or manipulation. As a further advantage, embodiments of the disclosed subject matter can include droplet generation, control, and/or manipulation for liquids, gases, combinations, etc. Further non-limiting embodiments are provided that illustrate the advantages and flexibility of the disclosed structures.