Abstract: A cooling apparatus of a motor controller includes a water pipeline cover plate mounted on a motor controller body which includes a water pipeline inlet, an inlet of an inner water pipeline, an outlet of the inner water pipeline, and a water pipeline outlet. The water pipeline cover plate includes a water pipeline cover plate inlet, a power-module water inlet, a mounting groove, a power-module water outlet, and a water pipeline cover plate outlet. A heat-dissipation surface of the power module and a surface of the mounting groove surround a cooling accommodating cavity. The water pipeline inlet, the inlet of the inner water pipeline, the water pipeline cover plate inlet, and the water pipeline cover plate inlet communicate with the power-module water inlet, the cooling accommodating cavity, the power-module water outlet, and the water pipeline cover plate outlet.

Abstract: Embodiments of the present disclosure provide a solution for video data communication with selective transmission of frames. A method comprises: obtaining, at a first apparatus, encoded data of a video comprising a set of frames, each of the set of frames being assigned to one of a plurality of levels based on a reference relationship of the set of frames; receiving, from a second apparatus, feedback information associated with at least one performance attribute representing performance information for processing the encoded data of the video at the second apparatus; selecting at least one target frame from the set of frames based on the feedback information and the plurality of levels; and transmitting encoded data of the at least one target frame to the second apparatus.

Abstract: A sound barrier device is described. The device includes a first panel having a plurality of perforations, a second panel with no perforations, and a connector connecting the first and second panels and forming an air gap between the first and second panels.

Abstract: A flexible tracking bracket, comprising: columns (1), wherein multiple columns are spaced apart on a base surface; bases (2), provided on top of each column; rotating beams (3), pivotally arranged on the bases; flexible bearing bodies, comprising at least two bearing cables (41) each connected between two adjacent rotating beams, and used to support photovoltaic modules (13); driving devices (5), provided at each base. The driving device comprises a driving end, which is connected to a corresponding rotating beam. Multiple driving devices synchronously drive the corresponding rotating beams to rotate. The disclosure has a well-engineered configuration, a compact structure, and is easy to install or maintain, and is not prone to jamming. It also has a reverse self-locking function, which allows the flexible bracket to have an angle adjustment function, improving the power generation efficiency and profitability of photovoltaic power plants.

Abstract: A flexible photovoltaic bracket includes a number of upright columns, a number of cross beams, a load-bearing rope and a module fastener. The cross beam is correspondingly arranged on a top of the upright column. The load-bearing rope is fixedly connected to the cross beam and is extended between adjacent cross beams. The module fastener includes a pressing block, a fastening component and a clamping assembly. The pressing block and the fastening component are rotationally connected. A receiving cavity is formed between the pressing block and the fastening component for clamping and limiting the load-bearing rope. The pressing block includes a horizontal base plate portion and a hook portion configured to contact a photovoltaic module. The clamping assembly passes through the fastening component and the horizontal base plate portion, and is configured to be fixedly connected to a frame of the photovoltaic module.

Abstract: A flexible photovoltaic bracket includes a fixing structure, a rope structure and a support frame. The rope structure includes a first assembly rope, a second assembly rope, a first stabilizing rope and a second stabilizing rope. The support frame includes an assembly rope support rod, a first side support rod, a second side support rod and a stabilizing rope support rod. Two ends of the assembly rope stay are connected to the first assembly rope and the second assembly rope. The first side support rod is connected to the first assembly rope and the first stabilizing rope. The second side support rod is connected to the second assembly rope and the second stabilizing rope. Two ends of the stabilizing rope support rod are connected to the first stabilizing rope and the second stabilizing rope. A flexible photovoltaic system is also disclosed.

Abstract: A flexible photovoltaic tracking bracket includes a number of basic structures, a number of beam structures, a driving device, a rope structure connecting adjacent beam structures, and a support frame. The rope structure includes assembly ropes and stabilizing ropes. The stabilizing ropes are located below the assembly ropes. The assembly ropes are configured to be fixedly connected to a photovoltaic module. The assembly ropes include a first assembly rope and a second assembly rope which are disposed along a left-right direction. The stabilizing ropes include a first stabilizing rope and a second stabilizing rope which are disposed along the left-right direction. The support frame is connected to the assembly ropes and the stabilizing ropes. The first stabilizing rope is in an arc shape that curves in an upper right direction, and/or, the second stabilizing rope is in an arc shape that curves in an upper left direction.

Abstract: Disclosed herein are methods for transferring two-dimensional (2D) materials between substrates with the aid of ice, in which the ice serves as a supporting layer for the transfer of the 2D materials. The methods include the transfer of materials such as the 2D materials between substrates including the ice-aided transfer of ultra-clean materials.

Abstract: A flexible photovoltaic bracket includes a number of upright columns, a number of cross beams, a load-bearing rope and a module fastener. The cross beam is correspondingly arranged on a top of the upright column. The load-bearing rope is fixedly connected to the cross beam and is extended between adjacent cross beams. The module fastener includes a pressing block, a fastening component and a clamping assembly. The pressing block and the fastening component are rotationally connected. A receiving cavity is formed between the pressing block and the fastening component for clamping and limiting the load-bearing rope. The pressing block includes a horizontal base plate portion and a hook portion configured to contact a photovoltaic module. The clamping assembly passes through the fastening component and the horizontal base plate portion, and is configured to be fixedly connected to a frame of the photovoltaic module.

Abstract: A flexible tracking bracket, comprising: columns (1), wherein multiple columns are spaced apart on a base surface; bases (2), provided on top of each column; rotating beams (3), pivotally arranged on the bases; flexible bearing bodies, comprising at least two bearing cables (41) each connected between two adjacent rotating beams, and used to support photovoltaic modules (13); driving devices (5), provided at each base. The driving device comprises a driving end, which is connected to a corresponding rotating beam. Multiple driving devices synchronously drive the corresponding rotating beams to rotate. The disclosure has a well-engineered configuration, a compact structure, and is easy to install or maintain, and is not prone to jamming. It also has a reverse self-locking function, which allows the flexible bracket to have an angle adjustment function, improving the power generation efficiency and profitability of photovoltaic power plants.

Abstract: A vertical thyristor switch for a controllable surge arrester includes an insulating sleeve and a vertical cylindrical switch core body encapsulated inside the insulating sleeve. The switch core body includes thyristor valve sections, a reactor, driving units, a voltage equalizing assembly section, a structural member and a connecting member; and after being connected to the driving units on one side of the thyristor valve sections, the thyristor valve sections are arranged, together with the voltage equalizing assembly section, in a space of a lower section of the structural member, an upper section of the structural member is provided with the reactor, and components inside the switch core body are electrically connected through the connecting member.

Abstract: An energy conversion apparatus includes: a first switch module, a motor inverter having a first bus terminal connected with a first end of a battery and a second bus terminal connected with a second end of the battery through the first switch module, a motor winding having a first end connected with a midpoint end of the motor inverter, and a second switch module and a first capacitor connected in series. A first end of the serial-connected second switch module and the first capacitor is connected with a second end of the motor winding. A second end of the serial-connected second switch module and the first capacitor is connected with the second bus terminal.

Abstract: Disclosed herein are novel bifunctional compounds formed by conjugating EGFR inhibitor moieties with E3 ligase Ligand moieties, which function to recruit targeted proteins to E3 ubiquitin ligase for degradation, and methods of preparation and uses thereof.

Abstract: An encoding method includes capturing an original screen video to be encoded, the original screen video including frames of screen images, reading image feature parameters of the frames of screen images in the original screen video, determining video encoding parameters for the original screen video according to the image feature parameters, acquiring a screen display resolution of a screen sharing object, and encoding the original screen video according to the video encoding parameters and with reference to the screen display resolution of the screen sharing object.

Abstract: A cooling apparatus of a motor controller includes a water pipeline cover plate mounted on a motor controller body which includes a water pipeline inlet, an inlet of an inner water pipeline, an outlet of the inner water pipeline, and a water pipeline outlet. The water pipeline cover plate includes a water pipeline cover plate inlet, a power-module water inlet, a mounting groove, a power-module water outlet, and a water pipeline cover plate outlet. A heat-dissipation surface of the power module and a surface of the mounting groove surround a cooling accommodating cavity. The water pipeline inlet, the inlet of the inner water pipeline, the water pipeline cover plate inlet, and the water pipeline cover plate inlet communicate with the power-module water inlet, the cooling accommodating cavity, the power-module water outlet, and the water pipeline cover plate outlet.

Abstract: Disclosed herein is a method of forming origami 3-dimensional (3D) graphene on a substrate. The method includes steps of, (a) placing the substrate in a reaction chamber; (b) purging the reaction chamber with a flow of a carry gas; (c) providing a flow of hydrogen along with the carry gas into the reaction chamber; (d) elevating the temperature of the substrate tin the reaction chamber to a level that is close to its melting point; (e) providing a flow of a precursor gas to the reaction chamber for a period of time to deposit a flat graphene layer onto the substrate; and (f) cooling the substrate of step (e) to ambient temperature thereby transforming the flat graphene layer into the origami 3D graphene.

Abstract: Disclosed herein are methods for transferring two-dimensional (2D) materials between substrates with the aid of ice, in which the ice serves as a supporting layer for the transfer of the 2D materials. The methods include the transfer of materials such as the 2D materials between substrates including the ice-aided transfer of ultra-clean materials.

Abstract: An engine piston is provided. A first sealing structure, including a first sealing rubber ring and a first annular groove, is provided at a head of the engine piston. The first sealing rubber ring has a U-shaped section with a reserved space at the top of the first sealing rubber ring, and a gap for circulating hydraulic oil is provided between a ring bank, above the first sealing rubber ring, of the engine piston and a simulated cylinder liner of a fatigue testing apparatus for an engine piston. In a case that the hydraulic oil is introduced into the fatigue testing apparatus for the engine piston to simulate pressure loading under a high-explosion pressure, when the hydraulic oil enters into the reserved space from the gap for circulating the hydraulic oil, an inner wall of the reserved space is squeezed and the first sealing rubber ring is deformed.

Abstract: An energy conversion apparatus includes: a first switch module, a motor inverter having a first bus terminal connected with a first end of a battery and a second bus terminal connected with a second end of the battery through the first switch module, a motor winding having a first end connected with a midpoint end of the motor inverter, and a second switch module and a first capacitor connected in series. A first end of the serial-connected second switch module and the first capacitor is connected with a second end of the motor winding. A second end of the serial-connected second switch module and the first capacitor is connected with the second bus terminal.

Abstract: Described herein are methods and systems for the preparation of a brain targeted cerium oxide nanop article (CeNP) and its application in treating central neuronal system diseases. The brain targeted CeNP (T-CeNP) can effectively pass the blood brain barrier and specifically target brain tissue and exhibit anti-inflammatory and anti-oxidant effects.