Abstract: A bidirectional power supply apparatus includes: an alternating current input port for inputting an alternating current to the bidirectional power supply apparatus; an alternating current output port for outputting the alternating current to an alternating current device; a direct current input or output port for transmitting a direct current between the bidirectional power supply apparatus and a direct current device bidirectionally; a bidirectional energy conversion module for performing multiple energy conversions on electrical energy inputted to the bidirectional power supply apparatus; and a power management module electrically connected to the alternating current input port, the alternating current output port, and the direct current input or output port.

Abstract: An implanted ECOG electrode, a manufacturing method thereof, and a computer-readable storage medium are provided in the application. The implanted ECOG electrode includes an electrode contact region and a welding pad region. The electrode contact region includes electrode contacts. A hollowed-out portion is disposed a position, except for an end portion of the conductive wire, between adjacent two electrode contacts, and the hollowed-out portion penetrates through a top surface and a bottom surface of the electrode contact region.

Abstract: The present invention relates to a method for detecting and isolating a cell population co-expressing CD45 and EpCAM and the use thereof. In the present invention, a composition or a kit comprising an anti-CD45 antibody and an anti-EpCAM antibody is used for detecting and isolating a cell population co-expressing CD45 and EpCAM from PBMCs, and is used for rapid in-vitro screening of cancer, guiding treatment of cancer, and evaluating the effectiveness of cancer treatment.

Abstract: A transportation device for fruit and vegetable picking in a solar greenhouse is provided, which may include a guide rail, a moving mechanism and a picking box. The guide rail is horizontally fixed on side surfaces of multiple supporting columns in the solar greenhouse, an upper side and a lower side of the guide rail are respectively provided with horizontally extended sliding grooves, and a top of the moving mechanism is slidably connected to the guide rail through the sliding grooves, and the picking box is hung at a bottom of the moving mechanism. The transportation device is used to hang the picking box at a bottom of the moving mechanism, so that the moving mechanism can carry the picking box to move along the sliding grooves to transport the picking box to a destination, thereby saving time, saving labor and reducing a labor cost.

Abstract: A power tool includes an electric motor including a rotor and three-phase stator windings, where the stator windings have a certain electrical conduction angle when the electric motor operates; a driver circuit having multiple semiconductor switching elements; a parameter detection module for detecting a working parameter of the operating electric motor; and a controller electrically connected to at least the driver circuit and the electric motor. The controller is configured to acquire the working parameter; and according to the working parameter, correct the electrical conduction angle of the stator windings of the operating electric motor. A power tool that can accurately detect a commutation point and adjust the conduction angle of the electric motor windings accordingly is provided.

Abstract: The subject application relates to polyurethane foam and methods of forming the same. A polyurethane foam may include a first polyol component and a second polyol component. The first polyol component may include a polyether polyol having a functionality of at least about 5. The second polyol component may include at least one component selected from the group of a polyether polyol having a functionality of not greater than about 4, and a polyester polyol having a functionality of not greater than about 4.

Abstract: A charging station capable of guiding a self-driving device to interface includes a base plate installed in a working area to fix the self-driving device; a first wire surrounding on the base plate and connected to a signal generator independently of a boundary; a second wire surrounding on the base plate and connected to the signal generator independently of the boundary and the first wire; and the signal generator sending a guide signal to the first wire and/or the second wire; where multiple areas surrounded by the first wire and the second wire include at least a first area having a first magnetic field signal, a second area having a second magnetic field signal, and a third area having a third magnetic field signal.

Abstract: A charging station capable of guiding a self-driving device to interface includes a base plate installed in a working area to fix the self-driving device; a first wire surrounding on the base plate and connected to a signal generator independently of a boundary; a second wire surrounding on the base plate and connected to the signal generator independently of the boundary and the first wire; and the signal generator sending a guide signal to the first wire and/or the second wire; where multiple areas surrounded by the first wire and the second wire include at least a first area having a first magnetic field signal, a second area having a second magnetic field signal, and a third area having a third magnetic field signal.

Abstract: Disclosed in the present invention are a starch-embedded aroma substance microcapsule and a preparation method therefor. The method comprises: performing degreasing treatment on starch, gelatinizing the starch at high temperature, sequentially adding aroma substances having different molecular sizes into the starch paste, and compounding at high temperature; and finally, cooling, centrifuging, washing, and drying to obtain an aroma substance microcapsule. The total embedding rate of the aroma substances in the obtained microcapsule can reach 46.64%. The present invention is simple and convenient in process, and easy in condition control, does not need large special equipment, and has low cost and high efficiency.

Abstract: Disclosed are a combined-learning-based Internet of Things data service method and apparatus, a device and a medium. The method includes: acquiring a data processing result of an edge side for target user data; performing combined learning training based on a combined learning engine, the data processing result and the target user data, to obtain a combined learning training model; storing the combined learning training model in a target model base; and calling a service-side requirement by using the target model base. According to the present disclosure, target user data is processed, and then combined learning training is performed by using obtained data processing results, so that a combined learning training model meeting a user management and calling requirement can be obtained. Users' requirements for model training and calling are met based on a service-side requirement calling model, which facilitates the users' subsequent use of data.

Abstract: Disclosed are a data measurement method and apparatus, an electronic device and a computer-readable medium. In a specific implementation, the method includes: acquiring a data set; inputting the data set to a pre-trained deep learning network, and outputting a processing result, wherein the deep learning network is trained through a training sample set, and the training of the deep learning network includes: acquiring identity information of a target user in response to receiving a training request of the target user; verifying the identity information and determining whether the verification is passed; and controlling a target training engine to start training in response to determining that the identity information passes the verification; and determining the processing result as a measurement result, and controlling a target device with a display function to display the measurement result.

Abstract: A smart mowing system includes a boundary line, a signal transmitting unit, and a smart mower. The boundary line is configured to plan a working area. The signal transmitting unit is configured to generate a boundary signal to the boundary line. The smart mower includes a first signal receiving module, a second signal receiving module, and a control module. The second signal receiving module is a preset distance away from the first signal receiving module. The control module is configured to determine whether the first signal receiving module is located inside the boundary line, to determine whether the second signal receiving module is located inside the boundary line, and to control the smart mower to walk along the boundary line when the first signal receiving module or the second signal receiving module is located outside the boundary line.

Abstract: A measuring method for a portable electrical energy system includes acquiring a total capacity and an initial electric quantity percentage of each battery pack, detecting a discharging current and a discharging time of each battery pack, calculating a discharging capacity of each battery pack, calculating a remaining electric quantity of each battery pack; calculating a real-time electric quantity percentage of each battery pack; acquiring an open circuit voltage of each battery pack and a real-time internal resistance of a cell unit of each battery pack; calculating a remaining electric quantity of each battery pack; and calculating a remaining electric quantity of the portable electrical energy system. This method can reduce the calculation error of the remaining electric quantity and improve the battery utilization.

Abstract: A combination includes a battery pack and an adapter. The battery pack includes a battery pack interface at least capable of being detachably connected to a power tool. A first adapter includes a plug, an alternating current input interface, an alternating current-direct current conversion circuit, and a direct current output interface. A second adapter is capable of being electrically connected to the first adapter and the battery pack. The second adapter includes an adapter interface, a direct current interface, a voltage conversion circuit, and a two-way control module. The direct current interface is configured to be detachably electrically connected to the direct current output interface. The voltage conversion circuit is connected in series between the direct current interface and the adapter interface. The two-way control module is connected between the direct current interface and the adapter interface and connected to the voltage conversion circuit.

Abstract: The subject application relates to polyurethane foam and methods of forming the same. A polyurethane foam may include a first polyol component and a second polyol component. The first polyol component may include a polyether polyol having a functionality of at least about 5. The second polyol component may include at least one component selected from the group of a polyether polyol having a functionality of not greater than about 4, and a polyester polyol having a functionality of not greater than about 4.

Abstract: The subject application relates to polyurethane foam and methods of forming the same. A polyurethane foam may include a first polyol component and a second polyol component. The first polyol component may include a polyether polyol having a functionality of at least about 5. The second polyol component may include at least one component selected from the group of a polyether polyol having a functionality of not greater than about 4, and a polyester polyol having a functionality of not greater than about 4.

Abstract: A transportation device for fruit and vegetable picking in a solar greenhouse is provided, which may include a guide rail, a moving mechanism and a picking box. The guide rail is horizontally fixed on side surfaces of multiple supporting columns in the solar greenhouse, an upper side and a lower side of the guide rail are respectively provided with horizontally extended sliding grooves, and a top of the moving mechanism is slidably connected to the guide rail through the sliding grooves, and the picking box is hung at a bottom of the moving mechanism. The transportation device is used to hang the picking box at a bottom of the moving mechanism, so that the moving mechanism can carry the picking box to move along the sliding grooves to transport the picking box to a destination, thereby saving time, saving labor and reducing a labor cost.

Abstract: A power supply device and a booster circuit for a power supply device. The booster circuit includes an access terminal configured to access a direct current voltage from a battery pack, a transformer group electrically connected to the access terminal so that the accessed direct current voltage is boosted to a predetermined voltage by the transformer group, and a rectifier bridge electrically connected to the transformer group to convert the predetermined voltage into a high-voltage direct current after pulse rectification. The transformer group includes a first transformer including a first primary side and a first secondary side and a second transformer including a second primary side and a second secondary side. The power supply device disclosed is compact in structure and convenient to carry and can output an alternating current.

Abstract: An ultrasonic roller burnishing system comprises a roller and a controller. The roller is configured to be pressed against a surface of a workpiece to a pressing depth, roll on the surface at a feed rate, and vibrate at an ultrasonic frequency under a back pressure. The roller is pressed and rolled by a motion unit which is driven by a drive motor. The vibrating of the roller is driven by an ultrasonic vibration unit with an input current inputted thereinto. The controller is configured to adjust at least one of the pressing depth, the back pressure, the input current and the feed rate based on an expected residual compressive stress and a real time output power of the drive motor, to generate a residual compressive stress in the workpiece which is in an expected range predetermined based on the expected residual compressive stress.

Abstract: A packet transmission method and an apparatus pertain to the field of network technologies. The method includes obtaining, by a terminal device, a source IP (Internet Protocol) address in a to-be-transmitted packet and N IP addresses of the terminal device, where N is an integer, and when the source IP address in the to-be-transmitted packet is different from any one of the N IP addresses of the terminal device, determining that the source IP address in the to-be-transmitted packet is forged, and prohibiting transmitting the to-be-transmitted packet. The application can solve the problem that a virus such as Trojan in the terminal device may be prevented from forging a source IP address of another device to randomly transfer an attack packet in the network to improve network security.