Abstract: An objective lens, an optical imaging device, an optical system, and a test method of the optical system, relating to the field of optical testing. The purpose is to optimize the structure of the objective lens. The objective lens comprises a housing and an optical focusing assembly. The housing comprises a cavity, and the cavity is provided with a first opening and a second opening. The optical focusing assembly is mounted in the cavity, the focal point of the optical focusing assembly is located at the second opening, and the optical focusing assembly is configured to focus light entering the housing from the first opening a to the focal point. The optical focusing assembly in the objective lens focuses light on the basis of one of the reflection principle and the refraction principle.

Abstract: A Kompetitive allele-specific PCR (KASP) molecular marker primer combination related to a chilling requirement (CR) of Prunus persica (L.) Batsch and a use of the KASP molecular marker primer combination are provided. Based on a single-base difference between a base at a position 26,042,043 of chromosome 6 and a base at a position 46,470,090 of chromosome 1 for Prunus persica (L.) Batsch, a KASP molecular marker Chr06:26042043 primer combination and a KASP molecular marker Chr01:46470090 primer combination are designed. These two molecular marker primer combinations can be used to quickly and accurately identify a genotype of Prunus persica (L.) Batsch, such that a CR level of the Prunus persica (L.) Batsch can be preliminarily determined at a seedling stage. These two molecular marker primer combinations exhibit a high specificity and predictive ability in the detection of a CR of Prunus persica (L.) Batsch.

Abstract: A vehicle control method and apparatus, an electronic device, and a storage medium are provided. The method may include, when a range extender of a vehicle works, obtaining an electricity generation rotational speed signal during working of the range extender. A first noise suppression signal is then generated based on the electricity generation rotational speed signal, where the first noise suppression signal is used to suppress noise during working of the range extender. The first noise suppression signal is output through a speaker in the vehicle. In this method, effective noise reduction for the range extender can be implemented.

Abstract: A control method and apparatus are provided. The method includes: obtaining opening information of an accelerator pedal of a vehicle and gradient information; determining a motor output torque based on the opening information of the accelerator pedal and the gradient information; and determining a first hydraulic brake torque based on a required braking torque and the motor output torque. The control method and apparatus can be used in intelligent vehicles or electric vehicles, so that driving consistency of a user can be improved, and an unexpected hazard caused by inconsistent braking effects can be avoided.

Abstract: Vehicle control methods, vehicle control apparatuses, and vehicles (systems) are disclosed. An example vehicle includes a battery and a range extender. When a first configuration mode of the vehicle is activated, the range extender supplies power to the vehicle when an actual SOC value of the battery is less than or equal to a first threshold. When a second configuration mode is activated, the range extender supplies power to the vehicle when the actual SOC value of the battery is less than or equal to a second threshold. The second threshold is less than the first threshold. When a third configuration mode is activated, the range extender supplies power to the vehicle or idles when the actual SOC value of the battery is less than or equal to a third threshold.

Abstract: The present invention provides a three-dimensional liquid diode comprising: a vertical liquid diode layer, a horizontal liquid diode layer disposed above the vertical liquid diode layer, and a liquid collector disposed between the horizontal liquid diode layer and the vertical liquid diode layer. The vertical liquid diode layer comprises: a top surface; a bottom surface; and a plurality of channels, each extending from the top surface to the bottom surface with a vertical hydrophilicity gradient. The horizontal liquid diode layer comprises: an upper surface; a lower surface; a plurality of microstructures distributed on the lower surface with a horizontal structural gradient and configured to couple with the plurality of channels of the vertical liquid diode layer; and a plurality of outlets evenly distributed around the plurality of microstructures, and extending from the upper surface to the lower surface. The liquid collector is coupled to the plurality of outlets.

Abstract: The present invention relates to a graphene oxide material, a halogenated graphene material, preparation methods therefor, and an electrolysis system. A method for producing a graphene oxide material in an electrolysis system comprises the following steps: applying a voltage between a working electrode and a counter electrode, and exfoliating graphite and/or amorphous carbon under the action of electrolysis so as to generate the graphene oxide material, wherein before applying the voltage and/or in the process of applying the voltage, light irradiation is performed on the electrolysis system.

Abstract: An objective lens, an optical imaging device, an optical system, and a test method of the optical system, relating to the field of optical testing. The purpose is to optimize the structure of the objective lens. The objective lens comprises a housing and an optical focusing assembly. The housing comprises a cavity, and the cavity is provided with a first opening and a second opening. The optical focusing assembly is mounted in the cavity, the focal point of the optical focusing assembly is located at the second opening, and the optical focusing assembly is configured to focus light entering the housing from the first opening a to the focal point. The optical focusing assembly in the objective lens focuses light on the basis of one of the reflection principle and the refraction principle.

Abstract: A device for launching and recovering a box sampler includes a suspension coop, a rail assembly, a moving mechanism, a power unit, and a lifting frame. The rail assembly is fixedly arranged on a deck. The moving mechanism is arranged on the rail assembly and can move along the rail assembly. A fixed end of the power unit is articulated with a top end of the moving mechanism, and an extending end of the power unit is articulated with an open end of an upper frame of the lifting frame. A closed end of the upper frame of the lifting frame is articulated with a front end of the moving mechanism. According to the device for launching and recovering a box sampler, the box sampler can be smoothly launched and recovered. The sampler in the suspension coop can be kept horizontal and is prevented from severely shaking.

Abstract: An antenna controller for an antenna is configured to request and receive status information comprising power amplifier data of at least two adjustable power amplifiers. The antenna controller is configured to determine at least one target setting for the at least two adjustable power amplifiers based on the received power amplifier data, and to send the at least one target setting for the at least two adjustable power amplifiers. Hereby it is made possible for an antenna controller to set an overall target for multiple adjustable power amplifiers of the antenna. This in turn makes it possible to make the settings for the adjustable power amplifiers such that the transmission signal becomes linearized by a shared digital pre-distorter when transmitting using the multiple adjustable power amplifiers of the antenna. A Radio Frequency Integrated Circuit controller for an antenna subarray is configured to control at least one adjustable power amplifier.

Abstract: A signal sending and receiving method includes: receiving, by a terminal device, at least one piece of resource configuration information for determining N reference signal resource groups, and each of the N reference signal resource groups includes at least one reference signal resource; and sending a reference signal on a resource in an ith reference signal resource group in the N reference signal resource groups by using a jth antenna group corresponding to the ith reference signal resource group, where the jth antenna group includes at least one antenna. The N reference signal resource groups correspond to N antenna groups, and any two of the N antenna groups are different.

Abstract: A device for launching and recovering a box sampler includes a suspension coop, a rail assembly, a moving mechanism, a power unit, and a lifting frame. The rail assembly is fixedly arranged on a deck. The moving mechanism is arranged on the rail assembly and can move along the rail assembly. A fixed end of the power unit is articulated with a top end of the moving mechanism, and an extending end of the power unit is articulated with an open end of an upper frame of the lifting frame. A closed end of the upper frame of the lifting frame is articulated with a front end of the moving mechanism. According to the device for launching and recovering a box sampler, the box sampler can be smoothly launched and recovered. The sampler in the suspension coop can be kept horizontal and is prevented from severely shaking.

Abstract: The present invention relates to a graphene oxide material, a halogenated graphene material, preparation methods therefor, and an electrolysis system. A method for producing a graphene oxide material in an electrolysis system comprises the following steps: applying a voltage between a working electrode and a counter electrode, and exfoliating graphite and/or amorphous carbon under the action of electrolysis so as to generate the graphene oxide material, wherein before applying the voltage and/or in the process of applying the voltage, light irradiation is performed on the electrolysis system.

Abstract: The present application discloses a lighting device and a lighting system. The lighting device includes: a first housing, internally provided with a processing circuit; a first conductive connector, disposed on the first housing and electrically connected with the processing circuit; a trigger switch, disposed on the first housing and spatially spaced from the first conductive connector, the trigger switch being electrically connected with the processing circuit; and a first connecting component, disposed on the first housing, and capable of selectively matching and being fixed to a second connecting component on a control device so that when the first connecting component and the second connecting component are mechanically fixed, a trigger component of the second connecting component may correspond to the trigger switch of the first connecting component, and the first conductive connector may be in contact with a second conductive connector on the control device.

Abstract: The disclosure provides a method for preparing drug toxin PNU-159682 (morpholinyl anthracycline derivative) for antibody-conjugated drugs and intermediates involved in the preparation method. The preparation method of the present disclosure improves the stability, practicability and scalability of the process by introducing protecting groups and changing to reagents that are capable to amplify; the preparation method of the present disclosure minimizes the risk and operational difficulty during scale-up production; production and operation is simple and convenient.

Abstract: A signal sending and receiving method includes: receiving, by a terminal device, at least one piece of resource configuration information for determining N reference signal resource groups, and each of the N reference signal resource groups includes at least one reference signal resource; and sending a reference signal on a resource in an ith reference signal resource group in the N reference signal resource groups by using a jth antenna group corresponding to the ith reference signal resource group, where the jth antenna group includes at least one antenna. The N reference signal resource groups correspond to N antenna groups, and any two of the N antenna groups are different.

Abstract: The presently disclosed technology includes a friction stir welding apparatus comprising a frame, a moving platform and a parallel mechanism composed of three branch mechanisms, wherein a first branch mechanism comprises a first sliding pair, a first revolute pair, a telescopic rod and a first spherical pair connected in sequence. A second branch mechanism and a third branch mechanism both comprise a third sliding pair, a second revolute pair, a third linkage and a second spherical pair connected in sequence. The friction stir welding apparatus has high stiffness, low inertia, high dynamic performance and high accuracy, which can achieve precision welding with high requirements on processing quality and accuracy for jointing annular seams of large-scale rocket fuel storage tank barrels in the aviation field, for example. The presently disclosed technology also includes a corresponding friction stir welding system.

Abstract: A signal sending and receiving method includes: receiving, by a terminal device, at least one piece of resource configuration information for determining N reference signal resource groups, and each of the N reference signal resource groups includes at least one reference signal resource; and sending a reference signal on a resource in an ith reference signal resource group in the N reference signal resource groups by using a jth antenna group corresponding to the ith reference signal resource group, where the jth antenna group includes at least one antenna. The N reference signal resource groups correspond to N antenna groups, and any two of the N antenna groups are different.

Abstract: A lamp includes a housing, a heat sink, a light source and at least a bracket. The heat sink is disposed within the housing. The light source is connected with the heat sink. The bracket is disposed within the housing, and the bracket includes a main body and a first fixing portion arranged along the outer edge of the main body. The main body of the bracket connected to a side surface of the heat sink is connected to the housing through the first fixing portion to dispose the heat sink in the housing. When the bracket is fixedly connected to the inner wall of the housing, the heat sink can be firmly installed inside the housing and it is not easy to loosen during use, so that the heat sink can continuously and stably dissipate for the lamp.

Abstract: A lamp includes a housing, a heat sink, a light source and at least a bracket. The heat sink is disposed within the housing. The light source is connected with the heat sink. The bracket is disposed within the housing, and the bracket includes a main body and a first fixing portion arranged along the outer edge of the main body. The main body of the bracket connected to a side surface of the heat sink is connected to the housing through the first fixing portion to dispose the heat sink in the housing. When the bracket is fixedly connected to the inner wall of the housing, the heat sink can be firmly installed inside the housing and it is not easy to loosen during use, so that the heat sink can continuously and stably dissipate for the lamp.