Abstract: This application discloses a battery cell and a method and equipment for manufacturing same, a battery, and an electrical device, and relates to the technical field of battery manufacturing. This application discloses a battery cell, which may include: a shell, including a first wall; an electrode terminal, dielectrically mounted on the first wall; an electrode assembly, accommodated in the shell, where the electrode assembly may include a center hole, and a first tab may be disposed on the electrode assembly; and a current collection component, disposed between the first wall and the electrode assembly. The current collection component may include a center portion and a periphery portion. The center portion may positionally correspond to the center hole.

Abstract: An engineered radioactive polymeric microsphere, and a preparation and application thereof. The preparation method includes: adding a styrene monomer and a disperser and/or a crosslinker into a medium, followed by feeding of nitrogen or helium and stirring to obtain a first reaction mixture; heating the first reaction mixture, and adding an initiator, followed by reaction under stirring at a constant temperature to obtain a second reaction mixture; subjecting the second reaction mixture to washing with ethanol and water, and vacuum drying to obtain a crude polymeric microsphere; subjecting the crude polymeric microsphere to radiation-induced graft polymerization with a functional monomer to obtain the functionalized polymeric microsphere; and exposing the functionalized polymeric microsphere to a radionuclide to prepare the engineered radioactive polymeric microsphere.

Abstract: A system and method for determining a mud-weight window is disclosed. The method includes determining, for each of a plurality of borehole-formation training models, a fracture mud weight using a first physics-based method and a collapse mud weight using a second physics-based method, and training, using the plurality of borehole-formation training models, an artificial intelligence (AI) network to predict the fracture and collapse mud weights for a borehole formation model. The method further includes determining, using the trained AI network, an AI fracture and an AI collapse mud weight from an observed borehole-formation model, and a search window surrounding each AI mud weight. The method further includes predicting a final fracture mud weight within the fracture search window using the first physics-based method and a final collapse mud weight within the collapse search window using the second physics-based method, and determining the mud-weight window bounded by the two final mud weights.

Abstract: A multi-phase voltage converter has a plurality of integrated circuits (ICs), and a controller. Each IC has a power switch, a monitoring pin and a current sense pin. The power switch is controlled to convert an input voltage to an output voltage. The current sense pin is capable of providing a current sense signal representative of a current flowing through the power switch. The controller is capable of providing a clock signal via the monitoring pin, and provides a plurality of data signals via the current sense pin of the plurality of ICs. Each of the plurality of ICs is assigned an identification code based on the clock signal and one of the plurality of data signals.

Abstract: A method and a device for primary frequency modulation in new energy power generation are provided. An inverter performs a first power adjustment according to a p-f droop curve before receiving a power adjustment instruction sent by the power station controller, and performs a second power adjustment in response to the power adjustment instruction. Since the inverter performs the first power adjustment before responding to the power adjustment instruction sent by the power station controller, the response of the primary frequency modulation is speeded up, so that rapid control for the new energy generation power is achieved, thereby ensuring stable operation of a power grid for new energy power generation.

Abstract: The present application discloses a backlight module and a display device. The backlight module includes a base, a light emission assembly, and a light guide plate. The light emission assembly includes light emission units disposed on a first side of a base. The light guide plate is disposed on the first side of the base. The light guide plate includes first light diffusing portions, and each of the first light diffusing portions accommodates at least one of the light emission units to diffuse light emitted from the light emission unit.

Abstract: A segmented grouting method for ramp drivage in an aquifer is provided. Concerning grouting reinforcement for a ramp in an aquifer, a grouting process is divided into four stages according to a pressure change, that is, micro-pressure filling, low-pressure diffusion, medium-pressure reinforcement, and high-pressure fracturing. In the micro-pressure filling, an initial pressure of a grouting orifice is 0, and a low-concentration single-component grout is used to fill an original fissure of the aquifer. In the low-pressure diffusion, a low-concentration bicomponent grout is used for grouting, the original fissure is expanded, and a grouting radius is increased. In the medium-pressure reinforcement, a high-concentration bicomponent grout is used for grouting, thereby reinforcing the aquifer. In the high-pressure fracturing, a high-concentration bicomponent grout is used to reinforce a new fractured fissure of the orifice caused by a high pressure and the original fissure, thereby forming a confining bed.

Abstract: A method for predicting a formation property of a formation, including the steps of: drilling a first well that penetrates the formation, obtaining well properties from the first well, determining a measured formation property from the first well, determining a correlation function that estimates a predicted formation property from the well properties, wherein the correlation function comprises coefficients, calibrating the correlation function by modifying the coefficients until the predicted formation property best matches the measured formation property, drilling a second well that penetrates the formation, obtaining well properties from the second well, determining the formation property from the second well by applying the correlation function with the modified coefficients to the well properties.

Abstract: A method and a method for determining flow speed based on photoacoustic imaging or sensing. The method includes receiving multiple photoacoustic signals from a sample in response to transmission of multiple laser pulses of different wavelengths to the sample, and processing the photoacoustic signals based on a flow model that relates photoacoustic signals with flow speed to determine a flow speed of a liquid flow in the sample.

Abstract: A blood pressure measuring device comprises a device body, an air bag, an air nozzle and a piston, an air pump is provided in the device body, a casing of the device body is provided with a mounting hole and an air channel connection hole communicating with the mounting hole, the air channel connection hole is communicated with an air outlet of the air pump, the piston is installed in the mounting hole, the piston includes a piston sealing portion capable of forming a seal with the mounting hole positioned above the air channel connection hole, the air nozzle includes a through hole communicating with the air bag, when the air nozzle is inserted into the mounting hole, the air nozzle presses the piston downward until the piston sealing portion is positioned below the air channel connection hole, the through hole is communicated with the air channel connection hole.

Abstract: An electronic device includes, but is not limited to a device body (1), a display screen (2, 2?, 2?) position-adjustably disposed on the device body (1), and a speaker disposed in the device body (1). The device body (1) is provided with sound holes (3) for sound to pass through at least on a display screen mounting surface. The display screen (2, 2?, 2?) is movable between a shielding position at which all the sound holes on the display screen mounting surface are shielded and a non-shielding position at which part or all of the sound holes (3) on the display screen mounting surface are exposed outside.

Abstract: A controller for a multiphase switching converter has a set generation circuit, a frequency divider, and a plurality of sub control circuits. The set generation circuit provides a set signal based on an output voltage and a total current flowing through the plurality of switching circuits. The frequency divider provides a plurality of frequency division signals based on the set signal. The plurality of sub control circuits provides a plurality of switching control signals to control the plurality of switching circuits respectively. Such that when the total current is larger than a current reference, one of the plurality of switching circuits maintains off temporarily, until the total current is less than the current reference, then the one of the plurality of switching circuits are turned on based on the output voltage and a voltage reference.

Abstract: An Arthrobacter pascens X-1 for promoting a growth of nodules and increasing an abundance of probiotic microorganism populations is disclosed. After the Arthrobacter pascens X-1 provided by the disclosure is applied, nutrient elements required by plants such as potassium, calcium and magnesium in rock powder are effectively released, rock erosion is accelerated to form soil, simultaneously effective nitrogen fixation of soybeans is promoted, nitrogen required for soybean growth is provided, symbiotic nitrogen fixation capability of rhizobium and host plants is obviously exerted, total weight of root nodules is promoted to be increased by 150.00%, content of hydrolyzed nitrogen is improved to be increased by 11.58%, and symbiotic nitrogen fixation capability is effectively exerted. At the same time, the relative abundance of Bradyrhizobium in the soil is increased from 0.21% to 52.47%.

Abstract: A display substrate, a method for manufacturing a display substrate and a display device are provided, and the display substrate includes: a base having a first surface, a second surface and a side surface, the base includes a display area and an epitaxial area; a driving functional layer in the display area and first binding electrodes in the epitaxial area on the first surface, the first binding electrodes are coupled with the driving functional layer; second binding electrodes located on the second surface and coupled with the first binding electrodes through side wirings; a portion of each side wiring is located on the side surface; a blocking wall on the first surface and in the epitaxial region, an orthographic projection of the blocking wall on the base at least passes through spacing regions between every two adjacent first binding electrodes along an arrangement direction of the first binding electrodes.

Abstract: A method for forming a semiconductor structure includes providing a substrate including a first region with a first gate structure and a second region with a second gate structure. First to third dielectric layers are formed on the substrate. The third dielectric layer is patterned to form a first portion in the first region and a second portion in the second region. The second region is covered and at least a portion of the first portion is removed to form a first mask. The second dielectric layer is pattern by using the first mask and the second portion as the second mask to expose a portion of the first dielectric layer. The portion of the first dielectric layer is removed to form a first stacked spacer on the first gate structure and a second stacked spacer on the second gate structure.

Abstract: In various embodiments, an inference application reconstructs representations of items in a spectral domain. The inference application maps a first set of data points associated with a both an item and the spectral domain to conditioning information via a first trained machine learning model. The inference application updates a second trained machine learning model based on the conditioning information to generate a model that represents the item within the spectral domain. The inference application generates a second set of data points associated with both the item and the spectral domain via the model. The inference application constructs an image associated with the item based on the second set of data points.

Abstract: In various embodiments, a training application generates a trained machine learning model that represents items in a spectral domain. The training application executes a first neural network on a first set of data points associated with both a first item and the spectral domain to generate a second neural network. Subsequently, the training application generates a set of predicted data points that are associated with both the first item and the spectral domain via the second neural network. The training application generates the trained machine learning model based on the first neural network, the second neural network, and the set of predicted data points. The trained machine learning model maps one or more positions within the spectral domain to one or more values associated with an item based on a set of data points associated with both the item and the spectral domain.

Abstract: In various embodiments, an inference application constructs medical images. The inference application executes a first trained machine learning model on a set of data points associated with a both a medical item and a spectral domain to generate a second model that represents the medical item within the spectral domain. The inference application maps a set of positions to a set of predicted values associated with both the medical item and the spectral domain via the second model. The inference application constructs an image of the medical item based on the first set of predicted values.

Abstract: To estimate natural fracture properties based on production from hydraulically fractured wells, a computer system receives hydrocarbon reservoir production information associated with a naturally fractured hydrocarbon reservoir with entrapped hydrocarbons in which a wellbore has been formed to produce the hydrocarbons. The information includes a wellbore pressure measured over production time. From the wellbore pressure, the computer system determines a time rate of change of the wellbore pressure over the production time. From a plot of a logarithmic time rate of change of the wellbore pressure over logarithmic production time, the computer system identifies multiple plot sections, each representing a respective flow regime of a flow of the hydrocarbons from the reservoir.

Abstract: Provided is a use of a compound represented by Formula (I) or a nitrogen oxide, solvate, metabolite, pharmaceutically acceptable salt, or prodrug thereof in the preparation of medicament.