Abstract: An apparatus and method are described using a forward model to correct pulse pileup in spectrally resolved X-ray projection data from photon-counting detectors (PCDs). The forward model represents pulse pileup effects using an integral in which the integrand includes a term that is a function of a count rate, which term is called a spectrum distortion correction function. This correction function can be represented as superposition of basis energy functions and corresponding polynomials of the count rate, which are defined by the polynomial coefficients. To calibrate the forward model, the polynomial coefficients are adjusted to optimize an objective function, which uses calibration data having known projections lengths for the material components of a material decomposition. To determine projection lengths for projection data from a computed tomography scan, the calibrated polynomial coefficients are held constant and the projection lengths are adjusted to optimize an objective function.

Abstract: A ray detector and a ray detection panel. The ray detector includes a base substrate, a thin film transistor, a scintillator, and a photodetector; the scintillator is located on aside of the photodetector that is away from the base substrate; the photodetector includes: a first conductive structure; a semiconductor layer; a second conductive structure; a first dielectric layer; and a second dielectric layer, the second conductive structure is electrically connected with source electrode; the thin film transistor is located between the base substrate and the photodetector; and an orthographic projection of the thin film transistor on the base substrate at least partially falls into an orthographic projection of the photodetector on the base substrate.

Abstract: A diesel exhaust fluid (DEF) system and a method of controlling the DEF system are disclosed. The method may include determining that a shutdown condition of the DEF system is satisfied; providing a control signal to open a valve of a buffer tank of the DEF system based on determining that the shutdown condition of the DEF system is satisfied; determining that a level of DEF remaining in the buffer tank satisfies a threshold; and closing the valve of the buffer tank based on the level of DEF remaining in the buffer tank satisfying the threshold.

Abstract: The present disclosure provides a method and apparatus for displaying a picture search result page, a device and a storage medium, wherein the method comprises: obtaining a search term input by a user; determining a timeliness event corresponding to the search term; displaying a search result page corresponding to the search term, and increasing a display effect corresponding to the timeliness event on the search result page. The solution of the present disclosure may be applied to enhance the display effect.

Abstract: An electronic device has multiple transmitters to transmit multiple signals. The electronic device also has a receiver to receive a signal. Moreover, the electronic device has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to send a test transmission signal from a transmitter of the multiple of transmitters, receive the test transmission signal at the receiver, and determine a gain of the test transmission signal. In response to determining that the gain is within a threshold range of an initial gain, the instructions cause the processor to send an indication that the receiver is operating as expected.

Abstract: A method of operating a mobile fluoroscopic imaging system includes positioning an x-ray source and a DR detector about a patient. Data defining a spatial configuration of the x-ray source and the collimator is stored in the system. The system is configured to determine a source-to-image distance of the x-ray source and the DR detector including by activating the x-ray source and capturing a scout image in the DR detector. Dimensions of the scout image are calculated and the source-to-image distance is determined based on the data defining the spatial configuration of the x-ray source and the collimator and on the dimensions of the scout image.

Abstract: The present invention discloses a wound dressing and the method of manufacturing. The wound dressing is a knitted fabric including of a fluffy layer of gel-forming fibers and a backing layer of non-gel-forming fibers. The backing layer includes a plain fabric of the non-gel-forming fibers. The gel-forming fibers are knitted onto the backing layer, a middle part of the gel-forming fibers are held in the backing layer, and two ends of the gel-forming fibers project against the backing layer. The length of the middle part of the gel-forming fibers is no more than the length of one loop of the non-gel-forming fibers, and the length of each of the two ends of the gel-forming fibers is between 1-100 mm.

Abstract: A mobile CBCT imaging system is constructed on a mobile base. A scanning ring having one or more x-ray sources and one or more curved and/or planar detectors is connected to the mobile base. The scanning ring is configured to be spatially positioned as desired by an operator. The one or more sources are configured to revolve about an imaging axis and to emit radiographic energy toward the imaging axis, and the one or more detectors have an array of photosensors facing the imaging axis.

Abstract: A pixel readout circuit including a reset circuit configured to reset a first node to a first power supply voltage in response to a signal on a first scan line being active; a photodetector configured to generate, responsive to incident light, a charge signal and integrate the charge signal, the integrated charge signal causing a change in a voltage level at the first node; a photosensitive circuit configured to generate a pixel current in response to the change in the voltage level at the first node; and a switch circuit configured to transfer the pixel current to a signal readout line for readout in response to a signal on a second scan line being active.

Abstract: An active control method and system for wellbore pressure in open-cycle drilling in marine natural gas hydrates. The system comprises a drilling system, a drilling fluid injection system, and a data processing system for conducting the drilling operation.

Abstract: Described herein are CD73 inhibitors and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for the treatment of cancer, infections, and neurodegenerative diseases.

Abstract: Described herein are CD73 inhibitors and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for the treatment of cancer, infections, and neurodegenerative diseases.

Abstract: Use of isopropyl ?-(3,4-dihydroxyphenyl)-?-hydroxypropionate (IDHP) in the preparation of a drug or a health product for prevention and treatment of coronary atherosclerosis diseases. The IDHP can also be used to inhibit platelet aggregation, to promote angiogenesis, and to prepare a drug and a health product for prevention and treatment of senile vascular dementia.

Abstract: A system includes acquisition of data from a first data source, identification of logical entities of a first data model of the first data source based on the data of the first data source, identification, for one or more of the logical entities of the first data model, of a respective knowledge vault entity described by first metadata, and generation of second metadata describing a plurality of semantic layer entities, the second metadata describing a semantic layer entity comprising at least one semantic attribute of a knowledge vault entity corresponding to the semantic layer entity.

Abstract: Described herein are glucocorticoid receptor modulators and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for the treatment of cancer and hypercortisolism.

Abstract: A method performed by a terminal in a wireless communication system, including receiving, from a base station, a physical downlink control channel (PDCCH); predicting aggregation level information including information about an aggregation level of a control channel element (CCE) in which the PDCCH is received based on an aggregation level prediction model; determining a detection order for detecting the PDCCH based on the aggregation level information; and etecting the PDCCH based on the determined detection order.

Abstract: An optical character recognition (OCR) system disclosed herein may include three major parts: Training Data Generator, Training Module and main OCR module. The Training Data Generator may include an arbitrarily large library of fonts, a set of variable font parameters, such as font size and style (e.g., bold, italic, etc.), and position in the synthesis image. Additionally, an end-to-end training pipeline allows the OCR algorithm to be highly customizable and scalable to different scenarios. Furthermore, the OCR system can be effectively trained without any real-world training data.

Abstract: Various embodiments describe frame selection based on training and using a neural network. In an example, the neural network is a convolutional neural network trained with training pairs. Each training pair includes two training frames from a frame collection. The loss function relies on the estimated quality difference between the two training frames. Further, the definition of the loss function varies based on the actual quality difference between these two frames. In a further example, the neural network is trained by incorporating facial heatmaps generated from the training frames and facial quality scores of faces detected in the training frames. In addition, the training involves using a feature mean that represents an average of the features of the training frames belonging to the same frame collection. Once the neural network is trained, a frame collection is input thereto and a frame is selected based on generated quality scores.

Abstract: An apparatus for beam configuration in a wireless communication system, including a transceiver; and at least one processor connected with the transceiver and configured to: form at least one beam cluster from beams of a base station; determine a configuration of the at least one beam cluster; and configure the beams in the at least one beam cluster according to the determined configuration

Abstract: A portable apparatus for analyzing a plant specimen. A housing assembly defines a sensing volume and controls entry of ambient light into the sensing volume when the housing is closed. A specimen support positions a plant specimen within the sensing volume whereby light emitted from at least one light emitter is incident upon the plant specimen. An image sensor senses light from the at least one light emitter that has been incident on the plant specimen. A processor analyzes data obtained from the light sensor to assess one or more properties of the plant specimen. There may be more than one light emitter, e.g., a halogen lamp and LED array, and the apparatus may acquire images under more than one lighting condition. The apparatus may include a mechanism for moving the plant specimen relative to the optical path to take images at multiple regions of interest on the specimen.