Abstract: A method for preparing a quantum dot, a quantum dot, and a display device, are provided. The method includes, providing a first precursor solution, a second precursor solution, a first selenium precursor solution, and a second selenium precursor solution with a lower reaction activity than the first selenium precursor solution, adding the first selenium precursor solution to the second precursor solution to form an intermediate of the quantum dot, performing the following operation at least once to form the quantum dot: without cleaning the intermediate of the quantum dot, adding the first precursor solution and the second selenium precursor solution to the intermediate of the quantum dot, and making the first precursor solution, the second selenium precursor solution, and the intermediate of the quantum dot react.

Abstract: A valid node management method, a memory storage device and a memory control circuit unit are disclosed. The method includes: establishing a valid node management table corresponding to a first physical management unit; storing valid node management data in the valid node management table, wherein the valid node management data reflects a distribution status of a valid node in the first physical management unit; receiving an operation command from a host system, wherein the operation command is configured to change a data storage status of the first physical management unit; and updating the valid node management data in the valid node management table in response to the operation command.

Abstract: A method and a device for cartilage regeneration are provided. The method for cartilage regeneration has steps of: applying a pulse magnetic field with a magnetic pulse device to a body part of a mammal in which an injured cartilage tissue is located, wherein the magnetic pulse device has a magnetic pulse generator and a coil, and by applying a magnetic pulse with a frequency of from 10 Hz to 200 Hz to the coil, a uniform magnetic field distribution is produced in a region of the body part covered by the coil, thereby achieving a uniform magnetically induced electrical excitation. The method can effectively facilitate articular cartilage regeneration, and is convenient to operate, having a broad prospect in clinical applications.

Abstract: To solve the problem that the existing non-aqueous electrolyte for a lithium ion battery cannot ensure the high-temperature storage performance and cycle performance at the same time, the invention provides a non-aqueous electrolyte for a lithium ion battery, comprising a solvent, a lithium salt and a compound represented by structural formula 1 and/or structural formula 2: Meanwhile, the invention also discloses a lithium ion battery comprising the non-aqueous electrolyte for a lithium ion battery. The non-aqueous electrolyte provided by the invention can effectively improve the cycle performance and high-temperature storage performance of lithium ion batteries.

Abstract: According to a surveying and mapping instrument and method for a wide-area spatial channel map through multi-unmanned aerial vehicle (UAV) cooperation, a measurement signal emission unit generates and emits a measurement signal, a measurement signal multi-UAV cooperative receiving unit receives the measurement signal transmitted through a wireless channel, extracts an effective multipath component from the measurement signal, and frames the effective multipath component and corresponding time and location information for storage, and transmits stored channel data to a channel data fusion processing unit offline, and the channel data fusion processing unit fuses the channel data in terms of space, time, and frequency dimensions, and completes missing channel data to construct a complete wide-area spatial channel map.

Abstract: The present disclosure provides a fracturing fluid mixing equipment including a clear water supply system, at least two mixing systems, at least one powder tank, at least two powder conveying systems, a mixing tank, a feeding system and a power system. The clear water supply system has two parallel water supply paths which are connected to the mixing system and the mixing tank respectively. The powder conveying system is connected to the powder tank. There are same number of powder conveying systems and mixing systems which are connected in one-to-one correspondence. The mixing system is connected into the mixing tank. The feeding system adds powder by pneumatic conveying. The power system provides driving force by pure electric power and/or electro-hydraulic power. According to present disclosure, the power system can reduce fuel consumption and exhaust emissions.

Abstract: A method for preparing a bisphenol phosphate hydroxyl aluminum salt nucleating agent is provided, which adopts organic aluminum alcoholate as raw materials to prepare bisphenol phosphate hydroxyl aluminum salt. In prior art, a neutralization reaction of bisphenol phosphate and sodium hydroxide is firstly performed, so as to prepare bisphenol phosphate sodium salt; then a double decomposition reaction of sodium salt and inorganic aluminum salt is performed to prepare the bisphenol phosphate hydroxyl aluminum salt. The present invention combines the two-step reaction in prior art into the one-step reaction of phosphate and organic aluminum alcoholate for synthesizing the bisphenol phosphate hydroxyl aluminum salt, thereby simplifying the production process, improving the production efficiency, shortening the reaction time, and improving the product quality.

Abstract: A data writing method, a memory storage device, and a memory control circuit unit are disclosed. The method includes the following. A write command is received from a host system. The write command instructs storing of first data belonging to a first logical unit. In response to the first data being first type data, the first data is stored in a first type physical unit according to the write command and first count information corresponding to a first logical range is updated. The first logical unit belongs to the first logical range. In response to the first count information meeting a preset condition, the first data is moved from the first type physical unit to a second type physical unit.

Abstract: According to a surveying and mapping instrument and method for a wide-area spatial channel map through multi-unmanned aerial vehicle (UAV) cooperation, a measurement signal emission unit generates and emits a measurement signal, a measurement signal multi-UAV cooperative receiving unit receives the measurement signal transmitted through a wireless channel, extracts an effective multipath component from the measurement signal, and frames the effective multipath component and corresponding time and location information for storage, and transmits stored channel data to a channel data fusion processing unit offline, and the channel data fusion processing unit fuses the channel data in terms of space, time, and frequency dimensions, and completes missing channel data to construct a complete wide-area spatial channel map.

Abstract: A valid node management method, a memory storage device and a memory control circuit unit are disclosed. The method includes: establishing a valid node management table corresponding to a first physical management unit; storing valid node management data in the valid node management table, wherein the valid node management data reflects a distribution status of a valid node in the first physical management unit; receiving an operation command from a host system, wherein the operation command is configured to change a data storage status of the first physical management unit; and updating the valid node management data in the valid node management table in response to the operation command.

Abstract: An information handling system may include at least one processor and a memory. The information handling system may be configured to: receive an indication of a desired role, wherein the desired role has a stack associated therewith; store the desired role in a basic input/output system (BIOS) variable; upon a subsequent boot, transmit the desired role to at least one network destination; and perform a network boot, wherein the network boot is configured to provision the information handling system with the stack based on the desired role.

Abstract: Provided are a lane line recognition method, an electronic device and a storage medium, relating to a technical field of artificial intelligence, in particular to technical fields of intelligent transportation, automatic driving and deep learning. The lane line recognition method includes: extracting a basic feature of an original image; recognizing at least one lane line node in the original image by using the basic feature of the original image; extracting a local feature from the basic feature of the original image by using the at least one lane line node; fusing the basic feature and the local feature; and recognizing a lane line in the original image based on a fused result.

Abstract: Provided are an anti-ST2 antibody or a fragment thereof. The antibody or the fragment thereof can be specifically bound to human ST2, for inhibiting combination of IL-33 and human ST2, blocking an IL-33/ST2 intracellular signaling pathway, and inhibiting the promoting effect of different forms of IL-33 in cell-derived IL5, IL6 and 118 production. Compared with a known anti-ST2 antibody, this anti-ST2 antibody has higher biological activity, and can be used for preventing, treating or alleviating diseases related to ST2 expression or IL-33/ST2 pathway disorders.

Abstract: Provided are a high-precision map construction method, an electronic device, and a storage medium, relating to the field of high-precision map technology and, in particular, to autonomous driving technology. The implementation solution includes: calculating a pose of a camera at each position point according to a pre-acquired video; calculating an absolute depth of each keypoint in the pre-acquired video according to the pose of the camera at each position point; constructing, according to the absolute depth of each keypoint in the video, a corresponding three-dimensional point cloud of each pixel point in the pre-acquired video; and constructing, according to the corresponding three-dimensional point cloud of each pixel point in the pre-acquired video, a high-precision map corresponding to the pre-acquired video.

Abstract: A method of rectifying a text image, a training method, an electronic device, and a medium, which relate to a field of an artificial intelligence technology, in particular to fields of computer vision, deep learning technology, intelligent transportation and high-precision maps. An exemplary implementation includes: performing, based on a gating strategy, a plurality of first layer-wise processing on a text image to be rectified, so as to obtain respective feature maps of a plurality of layer levels, wherein each of the feature maps includes a text structural feature related to the text image to be rectified, and the gating strategy is configured to increase an attention to the text structural feature; and performing a plurality of second layer-wise processing on the respective feature maps of the plurality of layer levels, so as to obtain a rectified text image corresponding to the text image to be rectified.

Abstract: A method for detecting a road change is provided. The method includes: obtaining a road image comprising a road to be detected; extracting a road region in the road image as a target region, wherein the road region corresponds to where the road to be detected is located; obtaining a target geographical location of the target region; determining a reference region for the target region from pre-stored road regions based on the target geographical location; calculating a similarity between the target region and the reference region; and determining, based on the similarity, whether a passability of the road to be detected is changed. By applying the solution provided by the embodiments of the present disclosure, efficiency of road change detection can be improved.

Abstract: Provided are a method and apparatus for correcting positioning information, an electronic device and a storage medium, which relate to the field of artificial intelligence, in particular, to intelligent transportation technology and image processing technology. The specific implementation solution includes steps described below. A to-be-corrected image and positioning information of the to-be-corrected image are acquired. A target candidate reference image matching the to-be-corrected image is selected from candidate reference images having accurate positioning information. The positioning information of the to-be-corrected image is corrected according to accurate positioning information of the target candidate reference image. According to the solution of the present disclosure, the positioning information of the to-be-corrected image can be quickly corrected, and a guarantee is provided for accurately updating a navigation map by using the to-be-corrected image subsequently.