Abstract: The present disclosure discloses a design method of a soil cover layer of a solid waste landfill considering the effect of plant root, which relates to the field of designing a soil cover for a solid waste landfill and aims to solve the problem of the prior art that does not consider the non-linear spatial variation of water content and the effect of plant root on the gas migration process. By comprehensively considering the type of plant root architecture, the distribution of water content varying with space, the errors of calculating gas migration caused by assuming that the water content of the cover layer is constant and ignoring the effect of plant root is effectively reduced; and the actual environment of the on-site cover layer is more comprehensively considered, thus improving the calculation accuracy.

Abstract: The present disclosure provides a loudspeaker assembly and an electronic device, relating to the technical field of electronic devices, so as to solve the problems of single sound effect and lack of good sound effect. The loudspeaker assembly includes a first housing, a second housing, a loudspeaker vibrator and an adjusting mechanism. The first housing and the loudspeaker vibrator form a first cavity, and the second housing and the loudspeaker vibrator form a second cavity. The adjusting mechanism includes a driving mechanism and a filling part. The driving mechanism drives the filling part to move, so as to change the volume of the filling part extending into the second cavity.

Abstract: A gas flow accelerator may include a body portion, and a tapered body portion including a first end integrally formed with the body portion. The gas flow accelerator may include an inlet port connected to the body portion and to receive a process gas to be removed from a semiconductor processing tool by a main pumping line. The semiconductor processing tool may include a chuck and a chuck vacuum line to apply a vacuum to the chuck to retain a semiconductor device. The tapered body portion may be configured to generate a rotational flow of the process gas to prevent buildup of processing byproduct on interior walls of the main pumping line. The gas flow accelerator may include an outlet port integrally formed with a second end of the tapered body portion. An end portion of the chuck vacuum line may be provided through the outlet port.

Abstract: An atomization generator and a special high-pressure atomization generation device for increasing oil and gas field recovery are provided. The special high-pressure atomization generation device for increasing oil and gas field recovery includes an agent pot assembly, a gear pump, a metering pump, an atomization generator and pipelines. The gear pump is connected with the agent pot assembly through an agent pot liquid inlet pipe. The metering pump is arranged between the agent pot assembly and the atomization generator which are connected through the low-pressure manifold pipeline and the high-pressure liquid inlet pipeline. The high-pressure liquid inlet pipeline is connected with the liquid inlet pipe. The liquid inlet pipes are connected with the metering pump. The gas inlet pipe is connected with the high-pressure gas source through the high-pressure gas inlet pipe. The gas inlet cap is provided with a gas inlet pipe.

Abstract: Embodiments are generally directed to an adaptive deformable kernel prediction network for image de-noising. An embodiment of a method for de-noising an image by a convolutional neural network implemented on a compute engine, the image including a plurality of pixels, the method comprising: for each of the plurality of pixels of the image, generating a convolutional kernel having a plurality of kernel values for the pixel; generating a plurality of offsets for the pixel respectively corresponding to the plurality of kernel values, each of the plurality of offsets to indicate a deviation from a pixel position of the pixel; determining a plurality of deviated pixel positions based on the pixel position of the pixel and the plurality of offsets; and filtering the pixel with the convolutional kernel and pixel values of the plurality of deviated pixel positions to obtain a de-noised pixel.

Abstract: Provided is a compound of formula I or a pharmaceutically acceptable salt, enantiomer, diastereomer, tautomer, solvate, isotopic substituent, polymorph, prodrug, or metabolite thereof. Also provided is a method for preparing the compound of formula I. The compound of formula I has higher inhibitory activity against SHP2, and thus can be used to prevent or treat a disease related to SHP2.

Abstract: A triboelectric nanogenerating device is configured for providing an electric power to an electronic device and the triboelectric nanogenerating device includes at least one scaly triboelectric membrane configured for providing the electric power to the electronic device by frictional electrification. The at least one scaly triboelectric membrane includes a keratin and a polyvinyl alcohol, the at least one scaly triboelectric membrane has a first triboelectric surface, and the first triboelectric surface of the at least one scaly triboelectric membrane includes a plurality of scaly layers. Each of the scaly layers is arranged in order and extends along an orienting direction. A distal end of each of the scaly layers has a plurality of saw-tooth structures.

Abstract: According to the embodiments of the disclosure, a multimedia processing method, device, electronic device, and storage medium are provided by obtaining a first multimedia resource; determining an initial text content corresponding to the first multimedia resource by performing speech recognition on audio data of the first multimedia resource, the audio data of the first multimedia resource comprises speech data of the initial text content; determining an invalid text content in the initial text content, the invalid text content is semantically non-informative; determining a first playing position of speech data of the invalid text content in the first multimedia resource; and cropping the first multimedia resource based on the first playing position to obtain a second multimedia resource, wherein audio data of the second multimedia resource comprises speech data of a target text content but does not comprise the speech data of the invalid text content.

Abstract: The present disclosure provides a direct current (DC) transformer error detection apparatus for a pulsating harmonic signal, including a DC and pulsating harmonic current output module and an external detected input module, where the DC and pulsating harmonic current output module outputs a DC and a DC superimposed pulsating harmonic current to an internal sampling circuit and a self-calibrated standard resistor array; and the internal sampling circuit converts the input DC and the input DC superimposed pulsating harmonic current into a voltage signal, and sends the voltage signal to an analog-to-digital (AD) sampling and measurement component through a front-end conditioning circuit and a detected input channel. The DC transformer error detection apparatus can complete self-calibration for measurement of the DC and the pulsating harmonic signal on a test site.

Abstract: Embodiments provide a method and an apparatus for determining speech similarity, and a program product, which relate to speech technology. The method includes: playing exemplary audio, and acquiring evaluation audio of a user, where the exemplary audio is audio of specified content that is read by using a specified language; acquiring a standard pronunciation feature corresponding to the exemplary audio, and extracting, from the evaluation audio, an evaluation pronunciation feature corresponding to the standard pronunciation feature, where the standard pronunciation feature is used to reflect a specific pronunciation of the specified content in the specified language; and determining a feature difference between the standard pronunciation feature and the evaluation pronunciation feature, and determining similarity between the evaluation audio and the exemplary audio according to the feature difference.

Abstract: The present disclosure provides a high-temperature nano-composite coating and a preparation method thereof, and a small bag flexible packaging coating. The high-temperature nano-composite coating provided by the present disclosure controls the fiber length. Moreover, high-temperature reinforcing filler and high-temperature expansion filler are introduced, to make the coating have ultra-high strength at high temperature without cracks caused by shrinkage at high-temperature. In addition, nanopowder, high-temperature skeleton filler and other additives are introduced to make the coating be uniform and stable and reach a slurry state similar to toothpaste. There is no precipitation and stratification during the placement process. Small packaging can be realized to facilitate construction and operation. Besides, the coating has a good bonding to furnace lining, and will not fall off from the furnace lining, thereby prolonging the service life of the furnace lining.

Abstract: A well cementing method is described for improving cementing quality by controlling the hydration heat of cement slurry. By controlling the degree and/or rate of hydration heat release from cement slurry, the method improves the hydration heat release during formation of cement with curing of cement slurry, improves the binding quality between the cement and the interfaces, and in turn improves the cementing quality at the open hole section and/or the overlap section. The cementing method improves cementing quality of oil and gas wells and reduces the risk of annular pressure.

Abstract: In the spark plug heat rating measurement method and system based on spark discharge current active heating, the spark plug is installed in a constant-temperature water jacket cooling chamber with a specific torque. A constant spark discharge current control module is connected to the high-voltage terminal of the spark plug, to provide real-time controlled discharge current to heat up the high-voltage central electrode of the spark plug. During the spark discharge process, the temperature change of the high-voltage central electrode and the surrounding ceramic insulator are measured by a temperature detection module and used to determine the heat rating of the spark plug. By real time adjusting the discharge current level of the spark plug, or providing a same amount of spark energy to the spark gap, the heat ratings of spark plugs with different ceramic insulation structures can be evaluated through the temperature changes during discharge or after discharge.

Abstract: Disclosed are approaches to acquiring a “disease fingerprint” from biosamples by collecting large data sets of physicochemical interactions to a sensor array composed of organic color center-modified carbon nanotubes. Array responses from subjects may be used to train and validate machine learning models to differentiate diseases and healthy individuals. The trained learning models may be used to subsequently classify patients based on nanosensor array emission data.

Abstract: Described herein are biomarkers for HPV-associated pre-cancers and cancers such as cervical cancer and cervical intraepithelial neoplasia. The RNA binding protein (RBP) and long-noncoding RNA (lnc-RNA) biomarkers can be detected and used to diagnose HPV-associated pre-cancers and cancers. In addition, early diagnosis of HPV-associated pre-cancers and cancers can facilitate therapeutic intervention in patients, particularly in the pre-cancer stage which can delay or prevent progression to cancer.

Abstract: A dual-mode antenna array receives RF signaling for AoA analysis, and includes a substrate, a ground plane disposed at a first side and a pair of radiating elements disposed at a second side. Each radiating element of the pair includes conductive material arranged in a modified rectangular shape having a first slot at a first side, a second slot at a second side, a third slot at a third side, and a fourth slot at a fourth side. The antenna array further includes a feed probe disposed adjacent to the pair of radiating elements and a pair of feedlines, each feedline conductively connected, at a first end, to the feed probe and connected, at a second end, to each of a first feed point and a second feed point of a corresponding radiating element.

Abstract: Implementations are described herein for normalizing counts of plant-parts-of-interest detected in digital imagery to account for differences in spatial dimensions of plants, particularly plant heights. In various implementations, one or more digital images depicting a top of a first plant may be processed. The one or more digital images may have been acquired by a vision sensor carried over top of the first plant by a ground-based vehicle. Based on the processing: a distance of the vision sensor to the first plant may be estimated, and a count of visible plant-parts-of-interest that were captured within a field of view of the vision sensor may be determined. Based on the estimated distance, the count of visible plant-parts-of-interest may be normalized with another count of visible plant-parts-of-interest determined from one or more digital images capturing a second plant.

Abstract: Techniques and apparatuses are described that implement a metal structure for steering and broadening millimeter-wave (mmWave) antenna coverage. A user device includes at least one mmWave antenna that produces a near-field radiation region and a far-field radiation pattern. Disposed within the near-field radiation region is the metal structure comprising one or more metal pieces. The metal pieces are able to reflect energy associated with the far-field radiation pattern or produce another far-field radiation pattern based on currents induced in the metal pieces by the near-field radiation region in such a way that the far-field radiation pattern from the mmWave antenna is positively affected (e.g., steered and/or broadened). In this way, the far-field radiation pattern can be effectively steered and/or broadened with a simple cost and space-effective design.

Abstract: This document describes a multimode high-isolation antenna system and associated methods and systems. The described antenna system is implemented on a generally-circular printed circuit board and can be used for wideband and ultra-wideband applications. The multimode high-isolation antenna system includes two orthogonal antennas separated by a decoupling structure. This arrangement provides high isolation between the antennas and enables five unique resonant modes of operation for the multimode high-isolation antenna system.