Abstract: Disclosed is an apparatus for charging a battery comprising a first charging device configured to communicate with at least one second charging device, the first charging device and the at least one second charging device configured to charge the battery, and comprising a first controller configured to control the first charging device, wherein the first controller determines the number of the at least one second charging devices by communicating with a second controller.

Abstract: The present invention relates to application of gossypol and its optical isomers to preparation of an anti-Coronavirus drug. Specifically disclosed is application of pharmaceutically acceptable salts, solvates, isotopes, stereoisomers, stereoisomer mixtures, and tautomers of the gossypol and its optical isomers to preparation of a drug for preventing and/or treating a disease caused by a Coronavirus. The Coronavirus is MERS-CoV, SARS-CoV, or SARS-CoV-2. It is found in the present invention for the first time that the gossypol and its optical isomers can inhibit the activity of Coronavirus 3CL proteases to achieve an anti-Coronavirus effect. The half maximal inhibitory concentrations of gossypol and (?)-gossypol to SARS-CoV proteases and SARS-CoV-2 3CL proteases are all lower than 10 ?M. The anti-Coronavirus 3CL protease effect is good. Therefore, the gossypol and its optical isomers have the potential for use in the preparation of a drug for preventing and/or treating novel Coronavirus infections.

Abstract: A Bifidobacterium lactis BL-99 strain capable of enhancing immunity and the use thereof, which belongs to the technical field of microorganisms, is described. The Bifidobacterium lactis BL-99 provided by the present invention is deposited in China General Microbiological Culture Collection Center CGMCC on Apr. 26, 2018 with the deposit number CGMCC No. 15650. The bacteria have gastric acid resistance and intestinal fluid resistance, can significantly promote the growth of Bifidobacterium and Lactobacillus, significantly increase antibody-producing cells and half hemolysis value HC50, activate NK cell activity, and can be used to prepare foods for immunity enhancement. It also has the effects in preventing osteoporosis, increasing blood calcium and/or phosphorus ions, which has a wide range of application prospects.

Abstract: A Bifidobacterium lactis BL-99 strain capable of enhancing immunity and the use thereof, which belongs to the technical field of microorganisms, is described. The Bifidobacterium lactis BL-99 provided by the present invention is deposited in China General Microbiological Culture Collection Center CGMCC on Apr. 26, 2018 with the deposit number CGMCC No. 15650. The bacteria have gastric acid resistance and intestinal fluid resistance, can significantly promote the growth of Bifidobacterium and Lactobacillus, significantly increase antibody-producing cells and half hemolysis value HC50, activate NK cell activity, and can be used to prepare foods for immunity enhancement. It also has the effects in preventing osteoporosis, increasing blood calcium and/or phosphorus ions, which has a wide range of application prospects.

Abstract: A method for detecting a surface gradient of an unstructured road based on Lidar includes: obtaining an environmental point cloud of a target region by using a Lidar, and filtering out a point cloud of a non-surface region to obtain a point cloud of a surface region; calculating a normal vector of the point cloud of the surface region, and obtaining an included angle of the surface of each region relative to a coordinate system of the Lidar; and obtaining pitching angle information of a vehicle at this time from a vehicle-mounted inertial measurement unit (IMU), and correcting the included angle with the pitching angle information to obtain the gradient of the surface of each region.

Abstract: A light-emitting diode (LED) sub-chip and a method of producing the same are provided. The LED sub-chip comprises an epitaxial layer disposed on a growth substrate, where the epitaxial layer comprises a plurality of electrodes. The groove disposed between the LED sub-chip and a second LED sub-chip, where the groove penetrates through the epitaxial layer separating the two sub-chips. The bridge insulating layer at least partially covering a sidewall of the groove, where the sidewall comprises a first surface and a second surface above the first surface, where the texture of the second surface is less granular than a texture of the first surface. The bridge electrode on the bridge insulating layer, where the bridge electrode connects respective electrodes of the two sub-chips at the first surface.

Abstract: A film laminating device is configured to attach a protective film on an electronic device. A top cover assembly comprising a protective film and a top cover is provided thereof, and the protective film comprises a protective layer and a release layer with a handle. A base is provided with a limit slot configured to place the electronic device, and when the top cover assembly is placed on a support table of the base, the side, deviating from the top cover, of the protective film may be in contact with the electronic device. The release layer is removed through pulling the handle, one end of the protective layer is in linear contact with a screen of the electronic device, the top cover is then bent upwards to be separated from the protective layer, the protective layer is gradually adsorbed on the screen according to its own gravity.

Abstract: A flip light emitting chip and a manufacturing method thereof are disclosed, wherein the flip light emitting chip comprises an N-type semiconductor layer, an active region, a P-type semiconductor layer, a reflective layer, a barrier layer, a bonding layer, a first insulating layer, an extended electrode layer, a second insulating layer, an N-type electrode, and a P-type electrode sequentially grown from a substrate. The first insulating layer has at least one first channel and at least one second channel. A first extended electrode portion and a second extended electrode portion of the extended electrode layer are respectively formed on the first insulating layer and extended to the N-type semiconductor layer via the first channel and to the barrier layer via the second channel. The second insulating layer has at least one third channel and at least one fourth channel.

Abstract: A flip light emitting chip and a manufacturing method thereof are provided. The flip light emitting chip includes a substrate and an extended stacking layer formed on the substrate. The extended stacking layer includes a first semiconductor layer formed on the substrate, an active region formed on the first semiconductor layer, and a second semiconductor layer formed on the active region. The flip light emitting chip further includes a reflective layer formed on the second semiconductor layer, a barrier layer formed on the second semiconductor layer and covering the reflective layer, a bonding layer formed on the barrier layer and an insulating layer formed on the bonding layer such that the bonding layer is retained between the barrier layer and the insulating layer for enhancing a binding force between the barrier layer and the insulating layer.

Abstract: A mini LED chip and a manufacturing method thereof are provided. The mini LED chip includes a growth substrate and a light-emitting epitaxial layer including a first type semiconductor layer, a luminous layer, and a second type semiconductor layer. The second type semiconductor layer and the luminous layer include an electrode contact hollow part that exposes the first type semiconductor layer. Further, the mini LED chip includes a transparent conductive layer disposed on a side of the second type semiconductor layer facing away from the growth substrate, an extended electrode disposed on a side of the transparent conductive layer facing away from the growth substrate, an insulating and isolating reflection layer covering the electrode contact hollow part and an exposed surface of the transparent conductive layer and the extended electrode facing away from the growth substrate, and a first bonding electrode and a second bonding electrode.

Abstract: The present disclosure provides a massive picture processing method, a massive picture processing device, an electronic apparatus and a computer readable storage medium, relating to the technical field of data processing. Said method comprises: acquiring matrixes corresponding to a plurality of channels of respective picture in massive pictures, and performing bit-based layering on respective matrixes; storing, according to an inverted index structure, picture-bit-layered data corresponding to respective channels after bit-based layering, and generating a picture-layer index record file; decoding all the picture-layer indexes of the picture according to the picture-layer index record file and synthesizing the picture according to the decoding result.

Abstract: A method and a system for determining a safe under keel clearance of an ultra-large ship are provided. The method comprises: acquiring operation parameter values of the ship; obtaining fluid pressure according to the values; obtaining a squat force and a trim moment of the ship according to the pressure; establishing a mirror image model based on speed potential to establish a squat clearance calculation model for the ship; determining a half-wave rising height with above calculation model; obtaining draught and trim changes according to the squat force and the trim moment, to determine a maximum squat clearance of the hull; determining the safe under keel clearance; and controlling the squat clearance of the ship according to the safe under keel clearance of the ship, to avoid navigation dangers, and improve the loading rate.

Abstract: A domain-specific phrase mining method, apparatus and electronic device are provided. A specific implementation includes: performing word vector conversion on a domain-specific phrase in a target text to obtain a first word vector, and performing word vector conversion on an unknown phrase in the target text to obtain a second word vector, where the domain-specific phrase is a phrase in a domain to which the target text belongs; obtaining a word vector space formed by the first and second word vectors, and identifying a preset quantity of target word vectors around the second word vector in the word vector space; determining, based on similarity values indicative of similarity between the preset quantity of target word vectors and the second word vector, whether the unknown phrase is a phrase in the domain to which the target text belongs.

Abstract: An online payment processing method, apparatus and system provide a simpler and less expensive online fund payment processing process. The method includes: sending a payment processing request from a merchant client to a payment request receiving server, the payment processing request carrying payment information; sending a uniform resource locator (URL) request to an open platform; processing payment by the open platform server based on the payment information obtained from the payment request receiving server and user information obtained from a user through a user client.

Abstract: The present application discloses a method and a system for assessing and early warning ship collision risk, an electronic device, and a computer-readable storage medium. The method includes: acquiring hydrological information and meteorological information of a current position of a designated ship, and acquiring navigation information of the designated ship and other ships; acquiring real-time collision risk of the designated ship through evaluation of a trained adaptive collision risk assessment model; determining a risk level of the designated ship according to the real-time collision risk; and outputting an early warning message associated with the risk level to the designated ship. This solution constructs an adaptive collision risk assessment model, and evaluates the ship collision risk by combining regional historical information and current navigation information, which can improve assessment accuracy of the ship collision risk and timeliness of early warning.

Abstract: A method of Mura defect repair, the method including: decoding an image input signal into pixel grayscale data of a frame image; looking up a DeMura lookup table and DeMura control data, and performing linear interpolation on Mura designated areas of the frame image according to the DeMura lookup table and DeMura control data to obtain compensation data of the Mura designated areas of the frame image; and superposing the compensation data and the pixel grayscale data of the frame image to obtain a compensated frame image signal.