Abstract: A fracturing fluid pad fluid is applicable to a calcium-rich reservoir and composed of clear water, phosphate, pH regulator and Ca2+ chelator, wherein, for 100 weight parts of clear water, the content of the phosphate is 1 to 10 weight parts, the volume molar concentration of the pH regulator is 1 to 5 mol/L, and the volume molar concentration of the Ca2+ chelator is 0.001 to 1 mol/L; the pH regulator is urea, ammonia water, propanamide and the like, and the Ca2+ chelator is EDTA and glutamic acid and the like. The present disclosure increases the average particle size of the proppant particles generated by hydrothermal reaction of formation minerals, thereby improving its propping effect in the formation micro-fractures.

Abstract: Disclosed are a method and a device for detecting a battery state of charge (SOC), and a computer equipment. The method includes: constructing a first battery-SOC detecting model by taking first sample data without battery-SOC label as a first training data set; constructing a second battery-SOC detecting model according to the feature encoder; constructing second sample data carrying battery-SOC label based on historical operation sampling data of the battery extracted from the full historical operation data of the battery, and extracting features from the second sample data through the feature encoder to obtain sample feature data; iteratively optimizing a feature predictor of the second battery-SOC detecting model by taking the sample feature data as a second training data set, and using an iteratively optimized second battery-SOC detecting model as a target battery-SOC detecting model; and detecting the battery SOC of a to-be-detected battery based on the target battery-SOC detecting model.

Abstract: A temperature prediction method and apparatus, an electronic device, a storage medium, and an energy storage system. The method includes: obtaining an ambient temperature and battery parameters of the energy storage device; obtaining a current first power, a third power, and a fourth power of the energy storage device; when a difference between the second power and the current first power is not less than the fourth power, determining a state of the energy storage device; outputting the predicted first power according to the state of the energy storage device; predicting the battery temperature of the energy storage device based on the ambient temperature, the battery parameters, and the predicted first power.

Abstract: A method for balancing production and consumption of an energy storage device and an electronic device are provided. When a production and/or consumption variation coefficient is greater than a corresponding threshold, a target data amount A of the production messages consumed by a cloud is acquired, an accumulation rate D is calculated according to a preset length B of a service memory queue and a data amount C of the production messages currently in the service memory queue, and/or, a consumption time E is acquired according to C and A. When D is greater than a preset rate or E is greater than a preset time, an exception notification message is pushed to an exception notification queue, so that the energy storage device determines a pushing amount of the production messages when the exception notification queue is updated, and pushes the production messages according to the pushing amount.

Abstract: A generalizable neural radiation field reconstruction method based on multi-modal information fusion, including: Step 1, constructing photometric features and geometric features based on unstructured multi-views, and constructing a multi-modal neural encoder by performing incrementally complementary fusion on the photometric features and the geometric features; Step 2, converting the multi-modal neural encoder and raw RGB pixel bodies of the unstructured multi-views into a volume density and radiation brightness; Step 3, sampling light on the basis of the constructed multi-modal neural encoder, aggregating context features of the sampled light based on a transformer network to obtain light context features; and Step 4, decoding, using the light context features, the volume density and the radiation brightness; rendering, based on the decoded volume density and the radiation brightness, to generate a free-view RGB-D image; and guiding dense reconstruction of a low-texture scene by combining photometric supervi

Abstract: A backlight module includes a rear housing, a light guide plate and a light source. The rear housing includes a bottom wall and a side wall that are connected to each other; the bottom wall and the side wall enclose an accommodation cavity. The light guide plate is located in the accommodation cavity. The light source is located in the accommodation cavity and located between the side wall and a side surface of the light guide plate. The light source includes a circuit board and a plurality of light-emitting devices that are mounted on the circuit board. A surface of the circuit board away from the plurality of light-emitting devices faces the side wall, and light-emitting surfaces of the plurality of light-emitting devices face the side surface of the light guide plate.

Abstract: A method for balancing production and consumption of an energy storage device and an electronic device are provided. When a production and/or consumption variation coefficient is greater than a corresponding threshold, a target data amount A of the production messages consumed by a cloud is acquired, an accumulation rate D is calculated according to a preset length B of a service memory queue and a data amount C of the production messages currently in the service memory queue, and/or, a consumption time E is acquired according to C and A. When D is greater than a preset rate or E is greater than a preset time, an exception notification message is pushed to an exception notification queue, so that the energy storage device determines a pushing amount of the production messages when the exception notification queue is updated, and pushes the production messages according to the pushing amount.

Abstract: The present disclosure provides a dispatch method of an energy management system for energy storage and a photovoltaic system for industrial and commercial use. The dispatch method includes: determining whether a third-party control system issues dispatch instructions, and initiating a third-party dispatching mode in response to determining that the third-party control system issues dispatch instructions; determining whether the cloud terminal issues dispatch curves, and initiating an active dispatching mode in response to determining that the cloud terminal issues dispatch curves; and initiating a passive dispatching mode in response to determining that the third-party control system does not issue any dispatch instruction and the cloud terminal does not issue any dispatch curve.

Abstract: A man-machine dialogue method, includes: for each round of a plurality of rounds of dialogue wherein each round includes dialogue information input by a user, determining semantic information corresponding to the dialogue information; determining a target slot position corresponding to an item indicated by the semantic information, establishing a new pre-order data structure including the target slot position when there is no established pre-order data structure including the target slot position; outputting reply information responsive to the dialogue information, wherein the reply information is configured to guide the user to input new dialogue information in a subsequent round of dialogue; and in a case that the dialogue information input by the user in the subsequent round includes a keyword for indicating ordering, performing an ordering operation according to a finally-established pre-order data structure.

Abstract: A backlight module includes a rear housing, a light guide plate and a light source. The rear housing includes a bottom wall and a side wall that are connected to each other; the bottom wall and the side wall enclose an accommodation cavity. The light guide plate is located in the accommodation cavity. The light source is located in the accommodation cavity and located between the side wall and a side surface of the light guide plate. The light source includes a circuit board and a plurality of light-emitting devices that are mounted on the circuit board. A surface of the circuit board away from the plurality of light-emitting devices faces the side wall, and light-emitting surfaces of the plurality of light-emitting devices face the side surface of the light guide plate.

Abstract: Provided are a display unit and a display apparatus, the display unit includes a back plate and a print circuit board disposed on the back plate, wherein the print circuit board is connected to the back plate through a screw, and is provided with a first electrostatic discharge region and a first electrostatic discharge unit; the first electrostatic discharge region is connected to the back plate through the screw to form a first electrostatic discharge channel, and the first electrostatic discharge unit is connected to the back plate to form a second electrostatic discharge channel.

Abstract: Provided are a file sending method, a file receiving method, and a file transceiving apparatus. The file sending method includes: creating a data sending process; acquiring a file to be sent, corresponding to the data sending process, from a data cache region in a user space; constructing metadata for the data sending process, and recording the metadata in a data reading and sending region in the user space; and sending the file to be sent and the metadata to a network adapter by means of a user-mode network device driver, and sending the file to be sent and the metadata by means of the network adapter.

Abstract: A man-machine dialogue method, includes: for each round of a plurality of rounds of dialogue wherein each round includes dialogue information input by a user, determining semantic information corresponding to the dialogue information; determining a target slot position corresponding to an item indicated by the semantic information, establishing a new pre-order data structure including the target slot position when there is no established pre-order data structure including the target slot position; outputting reply information responsive to the dialogue information, wherein the reply information is configured to guide the user to input new dialogue information in a subsequent round of dialogue; and in a case that the dialogue information input by the user in the subsequent round includes a keyword for indicating ordering, performing an ordering operation according to a finally-established pre-order data structure.

Abstract: Provided are a display unit and a display apparatus, the display unit includes a back plate and a print circuit board disposed on the back plate, wherein the print circuit board is connected to the back plate through a screw, and is provided with a first electrostatic discharge region and a first electrostatic discharge unit; the first electrostatic discharge region is connected to the back plate through the screw to form a first electrostatic discharge channel, and the first electrostatic discharge unit is connected to the back plate to form a second electrostatic discharge channel.

Abstract: Provided are a file sending method, a file receiving method, and a file transceiving apparatus. The file sending method includes: creating a data sending process; acquiring a file to be sent, corresponding to the data sending process, from a data cache region in a user space; constructing metadata for the data sending process, and recording the metadata in a data reading and sending region in the user space; and sending the file to be sent and the metadata to a network adapter by means of a user-mode network device driver, and sending the file to be sent and the metadata by means of the network adapter.

Abstract: The top cover structure of the power battery includes a cap plate, a cathode column, a conducting piece and a reversing piece, the conducting piece is electrically connected with the cathode column, the cathode column is insulatedly assembled with the cap plate; the reversing piece includes a welding part, a embossment and a joint part arranged between the welding part and the embossment, the embossment is arranged at the center of the reversing piece and protrudes towards the conducting piece, the welding part is arranged on the outer margin of the joint part; the welding part is electrically connected with the cap plate, the embossment does not contact the conducting piece, when the pressure inside the power battery increases, the reversing piece receives the pressure inside the power battery, and moves upwards, so that the embossment is electrically connected to the conducting piece.

Abstract: The top cover structure of the power battery includes a cap plate, a cathode column, a conducting piece and a reversing piece, the conducting piece is electrically connected with the cathode column, the cathode column is insulatedly assembled with the cap plate; the reversing piece includes a welding part, a embossment and a joint part arranged between the welding part and the embossment, the embossment is arranged at the center of the reversing piece and protrudes towards the conducting piece, the welding part is arranged on the outer margin of the joint part; the welding part is electrically connected with the cap plate, the embossment does not contact the conducting piece, when the pressure inside the power battery increases, the reversing piece receives the pressure inside the power battery, and moves upwards, so that the embossment is electrically connected to the conducting piece.

Abstract: In one aspect, the present disclosure relates to a substantially albumin-free, chemically defined medium for efficiently supporting stem cell differentiation with significantly improved reproducibility and long-term culture of the differentiated cells. In particular embodiments, provided herein are compositions and methods for promoting atrial and ventricular cardiomyocytes formation from stem cells. The present disclosure further relates to the atrial and ventricular cardiomyocytes formed from the stem cells, and the uses of the cardiomyocytes, e.g., for cardiac injury repairmen, cardiac safety evaluation during drug discovery, and screening for new therapeutics for treating cardiac injuries.

Abstract: The top cover structure of the power battery includes a cap plate, a cathode column, a conducting piece and a reversing piece, the conducting piece is electrically connected with the cathode column, the cathode column is insulatedly assembled with the cap plate; the reversing piece includes a welding part, a embossment with a solid core structure and a joint part arranged between the welding part and the embossment, the embossment is arranged at the center of the joint part, the welding part is arranged on the outer margin of the joint part; the welding part is electrically connected with the cap plate, the embossment does not contact the conducting piece, when the pressure inside the power battery increases, the reversing piece receives the pressure inside the power battery, and moves upwards, so that the embossment is electrically connected to the conducting piece.

Abstract: The top cover structure of the power battery includes a cap plate, a cathode column, a conducting piece and a reversing piece, the conducting piece is electrically connected with the cathode column, the cathode column is insulatedly assembled with the cap plate; the reversing piece includes a welding part, a embossment with a solid core structure and a joint part arranged between the welding part and the embossment, the embossment is arranged at the center of the joint part, the welding part is arranged on the outer margin of the joint part; the welding part is electrically connected with the cap plate, the embossment does not contact the conducting piece, when the pressure inside the power battery increases, the reversing piece receives the pressure inside the power battery, and moves upwards, so that the embossment is electrically connected to the conducting piece.