Abstract: Systems and methods for scan preparation are provided. The systems may obtain a first parameter set of a subject to be scanned by a medical device acquired before a scan is performed on the subject. The first parameter set may relate to a physiological motion of the subject acquired before the scan is performed on the subject. The systems may predict, based on the first parameter set and an estimation model, a second parameter set of the subject. The second parameter set may relate to the physiological motion of the subject. The systems may determine at least one scan parameter for the scan based at least in part on the second parameter set. The systems may cause the medical device to perform the scan on the subject based on the at least one scan parameter.

Abstract: The present disclosure relates to a method for analyzing an R-wave of an electrocardiogram (ECG) signal. The method includes obtaining an original ECG signal of a subject; filtering the original ECG signal; determining whether to trigger a search gate based on the filtered ECG signal, wherein the search gate is an instruction for detecting an R-wave on the original ECG signal; and detecting the R-wave on the original ECG signal in response to a determination of triggering the search gate.

Abstract: Systems and methods for scan preparation are provided. The systems may obtain a first parameter set of a subject to be scanned by a medical device acquired before a scan is performed on the subject. The first parameter set may relate to a physiological motion of the subject acquired before the scan is performed on the subject. The systems may predict, based on the first parameter set and an estimation model, a second parameter set of the subject. The second parameter set may relate to the physiological motion of the subject. The systems may determine at least one scan parameter for the scan based at least in part on the second parameter set. The systems may cause the medical device to perform the scan on the subject based on the at least one scan parameter.

Abstract: Provided are a compound as represented by formula I or a pharmaceutically acceptable salt thereof, and applications of the compound in preparing a medicament for preventing and/or treating a PDE-related disorder.

Abstract: The present disclosure relates to a small molecule inhibitor of cathepsin C and the medicinal use thereof. Specifically, provided in the present disclosure are an amide nitrile compound represented by formula VI, a pharmaceutical composition containing the compound, and the use thereof in the inhibition of cathepsin C.

Abstract: An integrated two-phase anaerobic dry fermentation reactor based on a biomimetic principle of rumen includes a reactor body; wherein the reactor body includes a dry fermentation chamber, a secondary fermentation chamber, and a liquid storage chamber. The dry fermentation chamber is arranged at an upper portion of the reactor body. The liquid storage chamber is arranged at a bottom of the reactor body. The secondary fermentation chamber is arranged between the dry fermentation chamber and the liquid storage chamber in the reactor body. The dry fermentation chamber is connected to the secondary fermentation chamber by a porous structure.

Abstract: A miter saw includes a worktable and a cutting unit. The cutting unit includes a movable arm pivotably connected with the worktable, a saw blade, a triggering switch and a tilt power-off module. The movable arm defines a reference plane which intersects a working surface of the worktable at an included angle. The tilt power-off module is disposed to detect the included angle and shift the triggering switch between a power-on state and a power-off state. The triggering switch is shifted to the power-off state when the tilt power-off module detects that the included angle is less than a predetermined breaking angle so as to prevent rotation of the saw blade in a folded position for safety purposes.

Abstract: A film, preferably, a multi-layered film, including a polymer composition, wherein the polymer composition includes: within a range from 1 wt % to 25 wt % of a cyclic olefin copolymer based on the weight of the polymer composition, and within a range from 75 wt % to 99 wt % (the remainder of material) of a polyethylene based on the weight of the polymer composition, wherein the cyclic olefin copolymer has a glass transition temperature (T.sub.g) of at least 80.degree. C. The films may be used in shrink packaging application.

Abstract: Example embodiments of the present disclosure provide an image detection method, an electronic device and a computer-readable storage medium. The image detection method includes the following. Am image to be detected including a target object is obtained and multiple feature representation determination modules are obtained. The multiple feature representation determination modules are trained for different parts of a reference object, using a reference image including the reference object and an authenticity of the reference image. Multiple feature representations for different parts of the target object are determined based on the image to be detected and the multiple feature representation determination modules. An authenticity of the image to be detected is determined based on the multiple feature representations.

Abstract: Embodiments of the present disclosure provide a method and apparatus for detecting a face image, electronic device, and computer readable medium. The method may include: performing facial keypoint detection on an image frame containing a face object; segmenting a center face area image and an entire face area image of a target face object from the image frame based on a facial keypoint detection result; performing head pose estimation respectively based on the center face area image and the entire face area image; and generating a detection result on whether the target face object contained in the image frame is a fake face object based on a difference between a piece of first head pose information estimated based on the center face area image and a piece of second head pose information estimated based on the entire face area image.

Abstract: The present disclosure relates to a method for analyzing an R-wave of an electrocardiogram (ECG) signal. The method includes obtaining an original ECG signal of a subject; filtering the original ECG signal; determining whether to trigger a search gate based on the filtered ECG signal, wherein the search gate is an instruction for detecting an R-wave on the original ECG signal; and detecting the R-wave on the original ECG signal in response to a determination of triggering the search gate.

Abstract: A film, preferably, a multi-layered film, comprising a polymer composition, wherein the polymer composition comprises: within a range from 1 wt % to 25 wt % of a cyclic olefin copolymer based on the weight of the polymer composition, and within a range from 75 wt % to 99 wt % (the remainder of material) of a polyethylene based on the weight of the polymer composition, wherein the cyclic olefin copolymer has a glass transition temperature (Tg) of at least 80° C. The films may be used in shrink packaging application.

Abstract: Disclosed are films, and methods of making such films, the films comprising a first polyethylene and a hydrocarbon resin, which can provide improved friction performance. The hydrocarbon resin may be incorporated in neat form or as a blend, for instance with a second polyethylene that may be the same as or different from the first polyethylene.

Abstract: A method may include obtaining scan data that is captured by scanning a heart of a subject with the imaging device. The method may include obtaining electrocardiogram (ECG) data during the scans of the heart of the subject. The method may include determining first scan data from the scan data. The method may include reconstructing the cardiac image based on the first scan data. The method may also include performing one or more iterations. Each of the one or more iterations may include determining whether there is a pulsatile artifact in the reconstructed cardiac image, determining a second time period of at least one cardiac cycle based on the pulsatile artifact, and reconstructing the cardiac image based on the scan data and the second time period.

Abstract: A traffic image recognition method and apparatus, and a computer device and a medium. An embodiment of the method comprises: acquiring a video stream collected by a vehicle, and extracting each frame of image in the video stream as a first image; inputting the first image into a de-interference autoencoder for pre-processing, to filter out an interference in the first image and output a second image, the de-interference autoencoder being obtained by training with at least two types of interference sample sets, and disturbance modes added to different types of interference sample sets including at least two of: noise, an affine transformation, filter blurring, a brightness transformation, or monochromatization; and inputting the second image into a traffic sign recognition model for recognition processing.

Abstract: Disclosed are films, and methods of making such films, the films comprising a first polyethylene and a hydrocarbon resin, which can provide improved friction performance. The hydrocarbon resin may be incorporated in neat form or as a blend, for instance with a second polyethylene that may be the same as or different from the first polyethylene.

Abstract: Example embodiments of the present disclosure provide an image detection method, an electronic device and a computer-readable storage medium. The image detection method includes the following. Am image to be detected including a target object is obtained and multiple feature representation determination modules are obtained. The multiple feature representation determination modules are trained for different parts of a reference object, using a reference image including the reference object and an authenticity of the reference image. Multiple feature representations for different parts of the target object are determined based on the image to be detected and the multiple feature representation determination modules. An authenticity of the image to be detected is determined based on the multiple feature representations.

Abstract: Embodiments of the present disclosure provide a method and apparatus for detecting a face image, electronic device, and computer readable medium. The method may include: performing facial keypoint detection on an image frame containing a face object; segmenting a center face area image and an entire face area image of a target face object from the image frame based on a facial keypoint detection result; performing head pose estimation respectively based on the center face area image and the entire face area image; and generating a detection result on whether the target face object contained in the image frame is a fake face object based on a difference between a piece of first head pose information estimated based on the center face area image and a piece of second head pose information estimated based on the entire face area image.

Abstract: Systems and methods for scan preparation are provided. The systems may obtain a first parameter set of a subject to be scanned by a medical device acquired before a scan is performed on the subject. The first parameter set may relate to a physiological motion of the subject acquired before the scan is performed on the subject. The systems may predict, based on the first parameter set and an estimation model, a second parameter set of the subject. The second parameter set may relate to the physiological motion of the subject. The systems may determine at least one scan parameter for the scan based at least in part on the second parameter set. The systems may cause the medical device to perform the scan on the subject based on the at least one scan parameter.

Abstract: An integrated two-phase anaerobic dry fermentation reactor based on a biomimetic principle of rumen includes a reactor body; wherein the reactor body includes a dry fermentation chamber, a secondary fermentation chamber, and a liquid storage chamber. The dry fermentation chamber is arranged at an upper portion of the reactor body. The liquid storage chamber is arranged at a bottom of the reactor body. The secondary fermentation chamber is arranged between the dry fermentation chamber and the liquid storage chamber in the reactor body. The dry fermentation chamber is connected to the secondary fermentation chamber by a porous structure.