Abstract: The provided is a signal saturation method for achieving spatial selection under a non-uniform field, and a medium. The method includes: setting a corresponding magnetization preparation module based on a distance between a target saturation region and a surface coil under a non-uniform field (S1); transmitting, by the surface coil, a first main pulse sequence, or sequentially transmitting a first magnetization preparation module and a first main pulse sequence, to acquire a first echo signal, and storing the first echo signal as a first dataset (S2); sequentially transmitting, by the surface coil, a second magnetization preparation module and a second main pulse sequence to acquire a second echo signal, and storing the second echo signal as a second dataset (S3); and processing the first dataset and the second dataset to saturate a signal in the target saturation region, thereby achieving spatial selection (S4).

Abstract: The provided is a magnetic resonance (MR) system and a method for measuring a regional body fat content using same. The method includes: when an object to be measured is a single-substance object: acquiring, by a corresponding radio frequency (RF) pulse sequence, an MR signal of the object to be measured; processing the acquired MR signal, and obtaining a target characteristic parameter value; calibrating, by phantoms with known different fat contents, the characteristic parameter, and establishing a correspondence between the characteristic parameter and the fat contents; and determining a fat content corresponding to the target characteristic parameter value (S1); and when the object to be measured is a mixed-substance object including a fat component and a non-fat component: acquiring an MR signal of the object to be measured; determining undetermined coefficients of the fat component and the non-fat component; and calculating a fat content of the object to be measured.

Abstract: This application belongs to the field of rotation angles detection, and provides a self-calibration method for a magnetic encoder, a motor, and a method for calibrating detection values of angles. The self-calibration method for the magnetic encoder includes: performing a low-pass filtering process on detection values ?det(ij) to obtain filtered values ?filt(ij); setting m reference points ?ref(n) within 360°, and selecting detection values ?det(ij-n) respectively closest to each reference point ?ref(n) in each period; selecting filtered values ?filt(ij-n) corresponding to ?det(ij-n); calculating trimming values ?cal(i-n)=?filt(ij-n)??det(ij-n); performing an averaging process on ?cal(i-n) over p periods for each reference point ?ref(n) to obtain target trimming values ?cal(n); and storing each of the reference points ?ref(n) and the target trimming values ?cal(n) respectively corresponding to the each of the reference point in a one-to-one correspondence as a trimming reference table.

Abstract: An electric energy transmission joint and a preparation method therefor. The electric energy transmission joint includes an electric energy transmission copper part, an electric energy transmission aluminum part, and an aluminum wire. The electric energy transmission copper part includes a fixer for connection with an electric consumption device, and a connector for connection with the electric energy transmission aluminum part. A first through hole is provided inside the electric energy transmission aluminum part, and a second through hole is provided inside the connector. An aluminum conductive core exposed by stripping an insulation layer from a front end of the aluminum wire is inserted into a cavity formed by the connection of the first through hole and the second through hole.

Abstract: A stretchable circuit board assembly and a method for manufacturing the same are provided. The circuit board assembly includes a flexible circuit board and an outer circuit board. The flexible circuit board includes a first base layer and an inner wiring layer. The flexible circuit board is divided into a connecting area and a stretchable area. The inner wiring layer within the connecting area includes an electrical connecting portion exposed from the outer circuit board. The stretchable area is configured to deform into at least one bent portion. The bent portion is used to cause the electrical connecting portion to stretch relative to the outer circuit board. The outer circuit board includes a second base layer and an outer wiring layer. A surface of the second base layer away from the outer wiring layer defines at least one blind groove. The blind groove is configured to receive the bent portion.

Abstract: A highly active and selective solid catalyst comprising stable single-atom iridium (Ir) anchored in a zeolite, e.g., ZSM-5, for upcycling of plastics, such as high-density polyethylene, to yield valuable lower molecular weight hydrocarbon products is disclosed.

Abstract: A method of wafer bonding includes: forming a first hole in a first insulation layer disposed over a first substrate; performing a first deposition-self-etch process to deposit a first conductive material in the first hole to form a first conductive plug; forming a second hole in a second insulation layer disposed over a second substrate; performing a second deposition-self-etch process to deposit a second conductive material in the second hole to form a second conductive plug; and bonding the first conductive plug with the second conductive plug to form a first grain fusion layer between the first conductive plug and the second conductive plug.

Abstract: The provided is a magnetic resonance (MR) system with spatial selectivity and a working method thereof. The MR system includes a data display and processing module, a spectrometer with at least one transmission channel, at least one power amplifier, a transmit-receive (TR) switch, a preamplifier, multiple sets of coils, and a magnet module, where when a number of transmission channels of the spectrometer is not less than a number of coils, one power amplifier is connected to the TR switch, while other power amplifiers are correspondingly connected to other coils (2, 3, 4) except for a main coil (1); when the number of the transmission channels of the spectrometer is less than the number of the coils, an output terminal of the at least one power amplifier is first connected to at least one power divider and multiple phase shifters and then connected to the coil.

Abstract: A system may be configured to receive audio data input and determine whether the audio data corresponds to an acoustic event defined by an acoustic event profile. The system may be further configured to detect an ongoing acoustic event corresponding to multiple occurrences of an acoustic event type and, in response, execute a set of actions. The execution of the routine may be based on conditions corresponding to the ongoing acoustic event. The system may be configured to evaluate the occurrences based on the conditions of the ongoing acoustic event including whether the occurrences occur within a timer period, the relative time between occurrences, and whether at least one occurrence is detected within different portions of the time period. The acoustic event profile may be associated with a user profile. The system may execute a routine that sends a notification or directs a device to perform an action.

Abstract: A mixed-signal operational circuit is provided. For the operational circuit part of the mixed-signal operational circuit, a first capacitor is used to determine the output terminal of the logic operational circuit, a second capacitor is used to provide a certain voltage, and a logic operational channel selects the charge channel from the second capacitor to the first capacitor based on the data signal of each input, so as to superimpose the voltage value at the output terminal. Time-division multiplexing is achieved through successive injection, thereby an analog voltage value related to the logical operation result is established at the output terminal.

Abstract: A backlight module and a display device are provided, which include a camera area and a backlight area, wherein the backlight area surrounds the camera area, the camera area includes a transparent illumination area and a non-transparent illumination area, and the non-transparent illumination area surrounds the transparent illumination area; and the light board is disposed in the non-transparent illumination area and the at least one light bead is disposed on a light board. In the display mode, the camera area obtains a uniform light source, so as to realize the camera area of the display device which can be displayed normally in the displaying mode, and achieve a true 100% screen ratio. In a lighting mode of the camera module, the light source of the light bead is turned off to avoid affecting the collecting operation of the camera module.

Abstract: Techniques are disclosed relating to automatically determining image quality for images of documents. In some embodiments, a computer system receives an image of a document captured at a user computing device. Using a neural network, the computer system analyzes the image to determine whether the image satisfies a quality threshold, where the analyzing includes determining whether one or more features in the image used in an authentication process are obscured. The computer system transmits, to the user computing device, a quality result, where the quality result is generated based on an image classification output by the neural network. Automatically determining whether a received image of a document satisfies a quality threshold may advantageously improve the chances of a system being able to complete an authentication process quickly, which in turn may improve user experience while reducing fraudulent activity.

Abstract: The present disclosure relates generally to compositions and methods related to long-acting and granulocyte-macrophage colony-stimulating factor (GM-CSF) with improved pharmacokinetics.

Abstract: The present disclosure discloses a sound absorption material block having a gradient pore diameter from inside to outside, including: an outer portion having a first pore diameter; and an inner portion encapsulated by the outer portion, having a second pore diameter; the first pore diameter is in a range of 20-200 ?m, the second pore diameter is in a range of 1-20 ?m; the sound absorption material block has a thickness in a range of 0.5-5 mm. The sound absorption material block in the present disclosure has lower damping property and higher intensity.

Abstract: This application discloses a focusing method and apparatus, an electronic device, and a medium. The focusing method includes: receiving first input when a first preview image captured based on a first zoom ratio is displayed, where the first input is used for triggering an update of the first zoom ratio to a second zoom ratio, the first zoom ratio is less than the second zoom ratio, and the first preview image includes an image of a target object; capturing N images based on the first zoom ratio in response to the first input; capturing an image of the target object from each of the N images based on the second zoom ratio, to obtain N sub-images; and synthesizing the N sub-images into a second preview image, and displaying the second preview image, where N is an integer greater than 1.

Abstract: A method for monitoring hydraulic fracturing range of a surface vertical shaft is provided by the present disclosure, belonging to the technical field of ultrahigh-pressure hydraulic fracturing monitoring of the coal mine vertical shafts.

Abstract: A method for predicting and controlling a water level of a series water conveyance canal on the basis of a fuzzy neural network is disclosed. The method includes: performing the relationship between a sluice opening degree and an open canal control water level by means of a fuzzy neural network, and constructing an upstream water level controller of a coupled predictive control algorithm; solving an optimal control rate of the upstream water level controller using a gradient optimization algorithm on the basis of a control target of the upstream water level controller; and generating a control strategy by collecting actually measured water level change information and multiplying the actually measured water level change information by the optimal control rate on the basis of the solved optimal control rate, thereby fulfilling the object of predicting and controlling the water level.

Abstract: Disclosed is a method for training an expression transfer model performed by a computer device, the method including: obtaining a source domain facial image of a first object, a target domain facial image of a second object and a facial feature image associated with the target domain facial image; applying the facial feature image and the source domain facial image to an expression transfer model to obtain a synthesized facial image of the first object; applying the synthesized facial image and the target domain facial image to a discriminative network model obtain two discrimination results; applying the synthesized facial image and the target domain facial image to an image classification model to obtain a category feature vector for identifying a difference between the synthesized facial image and the target domain facial image; and updating the expression transfer model according to the category feature vector and the discrimination results.

Abstract: A wire connection terminal and a welding joint. The novel wire connection terminal includes a terminal substrate (1) provided with a fixing portion for connecting with an electric device and a connecting portion for connecting with a wire (2). The fixing portion is provided with an assembly structure for being assembled with the electric device. The connecting portion is provided with a boss (13) formed by punching the connecting portion for connecting with the wire (2). The wire connection terminal is used for directly welding processing by matching a welding fixture, so as to improve the processing accuracy of the terminal, and avoid brittleness and breakage caused by stress concentration of the terminal.