Abstract: An electrode assembly and a lithium ion electric roll having the same are provided. The electrode assembly includes: a first electrode unit; a first anti-puncture cushion; in which the first electrode unit includes a first electrode sheet, an second electrode sheet, and a separator, the second electrode sheet comprises a second top edge and a second bottom edge along the length direction of the first electrode unit; an edge of the first anti-puncture cushion exceeds the second electrode sheet from the second top edge or the second bottom edge along the length direction of the first electrode unit.

Abstract: A conjugate compounds or pharmaceutically acceptable salt thereof, comprises a payload and two or more kinds of cell-interacting molecules. The cell-interacting molecules are ligands capable of specifically binding to a cell surface receptor. A method of treating diseases, comprises delivering a payload to a subject.

Abstract: A power supply apparatus and a method for controlling the same are provided in the present disclosure, and the power supply apparatus includes: a mode selection module, configured to provide for a user to select an output mode; a reference value setting module, configured to output an output voltage reference value and an output current reference value; a current control loop and a voltage control loop, which receive reference values respectively, and output a first and a second electric signal respectively; a loop selection module, configured to transmit the first or the second electric signal to a drive module; and the drive module, configured to provide a drive signal to a main power module to control the main power module to output a constant voltage/current, and perform voltage-limiting/current-limiting protection when the output voltage or the output current is greater than or equal to a threshold voltage/current for over-voltage/over-current protection.

Abstract: A device and method for geo-electric extraction under water layer coverage are provided. The device includes auxiliary tubes, outer casings, main tubes, mud extractors, encapsulated extraction electrodes and a fixing ferrule assembly, where the auxiliary tubes each have one end open and the other end closed; the outer casings each have one end open and the other end detachably connected to a top cover; an inner diameter of each of the outer casings is larger than an outer diameter of each of the auxiliary tubes; an outer diameter of each of the main tubes is smaller than the inner diameter of each of the outer casings; the mud extractors each include an inner rod, an outer rod and a bottom plate; the outer rod is sleeved outside the inner rod; the inner rod has one end provided with a dredging wheel and the other end provided with a handle.

Abstract: The present application provides a driving circuit of power devices, a switching circuit and a power conversion circuit. The driving circuit is configured to control switching actions of N power devices connected in parallel, where N?2 and N is a positive integer; the driving circuit includes a driving input circuit and a common magnetic bead, where a first end of the driving input circuit is electrically connected to N first ends of the common magnetic bead, N second ends of the common magnetic bead are electrically connected to control ends of the N power devices in a one-to-one correspondence, and a second end of the driving input circuit is electrically connected to second ends of the N power devices.

Abstract: A PFC converter and a control method thereof are provided. The PFC converter includes a first bridge, an inductor, a second bridge and a control unit. The first bridge includes a first switch and a second switch connected in series. There is a first node between the first and second switches. Two terminals of the inductor are coupled to the first node and a first terminal of an AC power source respectively. The second bridge includes a third switch and a fourth switch connected in series. There is a second node between the third and fourth switches, and the second node is coupled to a second terminal of the AC power source. The control unit controls a ratio of a high level duration on the second node in every line frequency cycle to be smaller than (250/Vbus)2, where Vbus is an output voltage of the PFC converter.

Abstract: This disclosure provides an integrated transformer and a power converter, the integrated transformer includes: a magnetic core, including an upper cover, a lower cover, a first winding column and a second winding column; a printed wiring board, disposed between the upper cover and the lower cover, and including a first through hole corresponding to the first winding column and a second through hole corresponding to the second winding column; and a first winding, a second winding, a third winding and a fourth winding; the first winding and the third winding are wound on the first winding column and the second winding column respectively, the second winding and the fourth winding are provided at positions corresponding to the first through hole and the second through hole on the printed wiring board, and magnetic flux directions within the first winding column and the second winding column are opposite.

Abstract: A semiconductor-fiber-laser assembly is provided that includes a pumping module, an active optical fiber and an assembling board. The active optical fiber is provided on an upper surface of the assembling board, the pumping module is provided on a surface of the assembling board that is the same as or opposite to the upper surface; and input-side and output-side optical-fiber gratings are provided at two ends of the active optical fiber, to form a laser resonator between the input-side and output-side optical-fiber gratings. The pumping module includes a plurality of semiconductor-laser single emitters, a collimating-lens group and a mirror group that are sequentially arranged, and light beams from the semiconductor-laser single emitters pass through the mirror group to realize beam combination.

Abstract: A PFC converter and a control method thereof are provided. The PFC converter includes a first bridge, an inductor, a second bridge and a control unit. The first bridge includes a first switch and a second switch connected in series. There is a first node between the first and second switches. Two terminals of the inductor are coupled to the first node and a first terminal of an AC power source respectively. The second bridge includes a third switch and a fourth switch connected in series. There is a second node between the third and fourth switches, and the second node is coupled to a second terminal of the AC power source. The control unit controls a ratio of a high level duration on the second node in every line frequency cycle to be smaller than (250/Vbus)2, where Vbus is an output voltage of the PFC converter.

Abstract: Disclosed is a method for preparing vanadium or vanadium alloy powder from a vanadium-containing raw material through a shortened process, including: calcinating a mixture of a vanadium-containing raw material and an alkali compound for oxidation to form a water-soluble vanadate; purifying the vanadate followed by vanadium precipitation to produce an intermediate CaV2O6 with high purity; dissolving CaV2O6 in a molten-salt medium together with other raw materials to form a uniform reaction system; and introducing a reducing agent to the system followed by separation, washing and drying to produce vanadium or vanadium alloy powder having a particle size of 50-800 nm and a purity of 99.0 wt % or more. The method can continuously process vanadium-containing raw materials to prepare vanadium or vanadium alloy powder.

Abstract: This disclosure provides an integrated transformer and a power converter, the integrated transformer includes: a magnetic core, including an upper cover, a lower cover, a first winding column and a second winding column; a printed wiring board, disposed between the upper cover and the lower cover, and including a first through hole corresponding to the first winding column and a second through hole corresponding to the second winding column; and a first winding, a second winding, a third winding and a fourth winding; the first winding and the third winding are wound on the first winding column and the second winding column respectively, the second winding and the fourth winding are provided at positions corresponding to the first through hole and the second through hole on the printed wiring board, and magnetic flux directions within the first winding column and the second winding column are opposite.

Abstract: The present disclosure relates to a switching power supply, an over-temperature control and protection method, and a power control method. The switching power supply includes: a converter module including at least one main power switch; a direction detection module configured to obtain installation direction information of the switching power supply; and a process module configured to perform a preset operation in accordance with the installation direction information of the switching power supply. The present disclosure may realize power control of the switching power supply and meet over-temperature protection requirements under various installation directions.

Abstract: Disclosed is a method for preparing vanadium or vanadium alloy powder from a vanadium-containing raw material through a shortened process, including: calcinating a mixture of a vanadium-containing raw material and an alkali compound for oxidation to form a water-soluble vanadate; purifying the vanadate followed by vanadium precipitation to produce an intermediate CaV2O6 with high purity; dissolving CaV2O6 in a molten-salt medium together with other raw materials to form a uniform reaction system; and introducing a reducing agent to the system followed by separation, washing and drying to produce vanadium or vanadium alloy powder having a particle size of 50-800 nm and a purity of 99.0 wt % or more. The method can continuously process vanadium-containing raw materials to prepare vanadium or vanadium alloy powder.

Abstract: The present disclosure discloses a grounding wire detection circuit, for monitoring whether an electrical device is grounded in real time, the grounding wire detection circuit including: a grounding detection circuit and a sampling control circuit, wherein the grounding detection circuit is electrically connected to a live wire, a neutral wire and a grounding wire of a single-phase three-wire type input, the live wire and the neutral wire are electrically connected to a main circuit of the electrical device; and the sampling control circuit is configured to isolate a current detected by the grounding detection circuit and convert the current into a sampling voltage. The real-time monitoring of whether or not a device is grounded may be achieved by detecting the sampling voltage, so as to alarm, cut off electrical device accordingly, which can improve safety of using the electrical device.

Abstract: An audio processing method, apparatus and system, capable of realizing the experience of singing Karaoke with other people. The method comprises: acquiring an audio file of a song and a lyric file of the song; playing the audio file at display time corresponding to a first lyric part of the lyric file and recording audio data of a user; playing the audio file at display time corresponding to a second lyric part of the lyric file; and performing audio mixing on the audio data of the user and audio data of the audio file at the display time corresponding to the first lyric part.

Abstract: The present invention belongs to the field of laser technology, particularly relates to a semiconductor laser, including a substrate, and lasers, fast axis collimation components, slow axis collimation components, steering compression optical systems, a polarization beam combination prism, a focusing lens and an optical fiber provided on the substrate, wherein the lasers can be arranged in two rows or one row. And lasers of the same row are all located in a same plane. Each laser is sequentially provided with a fast axis collimation component and a slow axis collimation component in the direction of an optical path. The lasers of the same row correspond to a group of steering compression optical systems used to steer and compress the light beams collimated by the fast axis collimation components and the slow axis collimation components. The polarization beam combination prism is used for combining two beams of lasers having been steered and compressed by two groups of the steering compression optical systems.

Abstract: The present disclosure relates to a computer implemented method, a computer program product, and a computer system for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.

Abstract: The present disclosure relates to a computer implemented method, a computer program product, and a computer system for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.

Abstract: The present disclosure relates to a computer implemented method, a computer program product, and a computer system for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.

Abstract: The present disclosure relates to a computer program product for verifying the road network of map. An embodiment of the present invention provides a method for verifying a road network of a map. The method comprises: determining, based on locations of a set of points in the map, a trajectory distance of a trajectory between a start point and an end point in the set of points on the map; determining a route distance between the start point and the end point in the road network of the map; and verifying the road network by comparing the trajectory distance and the route distance.