Abstract: A determination method and apparatus for a brushless direct current counter-electromotive force zero crossing point threshold and a storage medium, the method includes detecting counter-electromotive force zero crossing point time intervals of two adjacent sectors of a brushless direct current electric motor to obtain at least two first time intervals; utilizing the obtained at least two first time intervals to determine errors of a counter-electromotive force zero crossing point; converging the determined errors of the counter-electromotive force zero crossing point to obtain a counter-electromotive force zero crossing point threshold correction increment; and utilizing the obtained counter-electromotive force zero crossing point threshold correction increment to determine a counter-electromotive force zero crossing point threshold.

Abstract: A vehicle power transfer unit assembly comprises an input shaft, an intermediate shaft at least partially surrounding the input shaft, a central shaft adjacent the input shaft, a peripheral shaft at least partially surrounding the central shaft, a first shift collar, and a second shift collar. The first shift collar is operable between a first position where torque is transferred from the input shaft to the intermediate shaft and a second position where torque is not transferred from the input shaft to the intermediate shaft. The second shift collar is operable between a third position where torque is transferred from the input shaft to the peripheral shaft and a fourth position where torque is transferred from the input shaft to the central shaft.

Abstract: The invention provides a method for intelligently measuring vehicle trajectory based on a binocular stereo vision system, including the following steps: inputting a dataset into an SSD (Single Shot Multibox Detector) neural network to train a license plate recognition model; calibrating the binocular stereo vision system, and recording videos of moving target vehicles; detecting the license plates in the video frames with the license plate recognition model; performing stereo matching on the license plates in the subsequent frames of the same camera and in the corresponding left-view and right-view video frames by a feature-based matching algorithm; reserving correct matching point pairs after filtering with a homography matrix; screening the reserved matching point pairs, and reserving the one closest to the license plate center as the position of the target vehicle in the current frame; performing stereo measurement on the screened and reserved matching point pairs to get the spatial position coordinates of

Abstract: A back contact solar cell assembly and methods for its manufacture and assembly onto a panel for use in space vehicles are described. The solar cell assembly includes a compound semiconductor multijunction solar cell having a contact at the top surface of the solar cell, a conductive semiconductor element extending from the contact on the top surface to the back surface of the assembly where it forms a first back contact of a first polarity type, and a second back contact of a second polarity at the back surface of the assembly electrically coupled to the back surface of the solar cell.

Abstract: The present invention discloses an improved system of monitoring logistics involved in marine transportation. The proposed system with the help of data acquisition component, humidity control component, temperature control component, power component, microcontroller, and user device automatically regulate the required temperature and humidity level within preset threshold and also transmits the information to the user's device. This system also allows to add additional sensors and environmental control components including but not limited to ambient light, vibration, sound, movement, oxygen, chemical levels, and more. The system also provides a communication interface coupled to the onboard micro controller, where the communication interface being operative to transmit a monitoring update message to end user device, in response to a transmission instruction from the onboard microcontroller.

Abstract: A processing method of chip probing data includes: determining a new fail bit generated in an already completed chip probing process; acquiring repair record of the new fail bit, and repair records of bits adjacent to the new fail bit; analyzing the repair records to determine attribute information of the new fail bit and the adjacent bits, the attribute information including at least one of address information, redundant circuit information, element pattern of the new fail bit and chip probing flow; performing classification learning according to the attribute information to acquire a fail bit prediction model; and predicting fail bits to be chip-probed through the fail bit prediction model.

Abstract: An apparatus for real-time monitoring of groundwater level and soil moisture of a gully head landfill area includes: a groundwater observation well set up in a monitoring area; a drop-in liquid level transmitter placed in the groundwater observation well and configured to sense a change of groundwater level and transmit data to an environmental supervision cloud platform (ESCP) through a data collection module; a plurality of soil moisture transmitters arranged in layers on a wall of the groundwater observation well and configured to sense soil moisture; a data collection module configured to receive data from the drop-in liquid level transmitter and transmit the collected signal to an ESCP; and an environmental monitoring host configured to receive data from the soil moisture transmitters and transmit the data to an environmental monitoring cloud platform (EMCP). A user can view real-time data by remotely logging in to the ESCP and EMCP.

Abstract: A computer-aided design (CAD) system may support detection of internal channel networks for 3D printing and may include a CAD model access engine and a channel network detection engine. The CAD model access engine may access a CAD model of a physical object to be constructed through 3D printing. The channel network detection engine may detect an internal channel network included in the CAD model of the physical object, including by identifying channel openings along a surface of the CAD model that satisfy an opening size threshold and recursively identifying internal faces of the CAD model that form the internal channel network, wherein the internal faces are faces of the CAD model that are internal to the surface of the CAD model. The channel network detection engine may also perform a channel verification on the identified internal channel network to support the 3D printing of the physical object.

Abstract: The disclosure provides for head pose and gaze angle estimation that includes using a face alignment method with an image of a two-dimensional (2D) face to generate a facial UV position image and facial UV texture image of the 2D face in which to decouple movement of the head and eyes of the 2D face. An eye UV texture image is extracted from the facial UV texture image and stored in a database. The eye region of the facial UV texture image may then be replaced with the eye UV texture image stored in the database to generate a modified facial UV texture image. The modified facial UV texture image is reconstructed to generate a modified 2D face image as training data stored in the database, and the head pose and gaze angles of a person are simultaneously estimated by training a convolutional neural network with the training data.

Abstract: The embodiments of the present disclosure disclose a method for initiating and terminating a scan of a wireless device, and a wireless device. A sequence of time-of-initiation including a specified number of historical initiation time points is provided. The method comprises: receiving a scan OFF instruction from a requester; calculating a time difference between a current time point and an earliest historical initiation time point in the sequence of time-of-initiation, and comparing the time difference with the specified period to determine whether to terminate a current scan, in response to the scan OFF instruction; and continuing with the current scan until a target time point, and terminating the current scan at the target time point, if it is determined not to terminate the current scan. The technical solutions provided in the embodiments can improve speed of response of the wireless device to the scan ON and OFF instructions.

Abstract: A semiconductor etching method that comprises providing a material layer to be etched; sequentially forming on the material layer to be etched a first mask layer and a second mask layer that covers the first mask layer; patterning the second mask layer to form differently sized opening patterns that expose the first mask layer with differently sized regions; performing ion implantation on the exposed regions on the basis of the opening patterns; ion implantation concentration in each region is in direct proportion to the width of the region, and material etching removal rate of the ion-implanted region is in reverse proportion to the ion implantation concentration in the region; and basing on the opening patterns to etch the ion-implanted regions into the material layer to be etched to form grooves identical in size with the opening patterns, wherein depths of the grooves are approximate to or identical with one another.

Abstract: A base station antenna that extends along a first longitudinal axis includes a first array configured to emit electromagnetic radiation. The first array includes a first column of radiating elements, the first column including a first radiating element and a pair of second radiating elements. The first radiating element is a cross dipole radiating element and the pair of second radiating elements includes a pair of second radiating elements that are disposed facing each other on both sides of the first longitudinal axis, where each of the second radiating elements includes first and second radiating arms that extend respectively in opposite directions substantially along the first longitudinal axis, and a third radiating arm that extends toward the first longitudinal axis substantially perpendicular to the first and second radiating arms.

Abstract: A pixel structure and a manufacturing method thereof, an array substrate and a display device are provided. The pixel structure includes: a signal line; a common electrode line an extension direction of which is same as an extension direction of the signal line; a transistor including a semiconductor layer which includes a source region and a drain region; a first storage electrode which is insulated from the common electrode line and is connected with the drain region of the semiconductor layer; and a second storage electrode which is connected with the common electrode line and is insulated from the first storage electrode. In the pixel structure, portions, between the signal line and the common electrode line, of the first storage electrode and the second storage electrode includes overlap with each other to form a first storage capacitance.

Abstract: Updating user-specific instances of a second application for individual users of a group based on a data file for the second application being shared via a collaboration object that corresponds to the group within a first application. The instances of the second application present each individual user with their own custom user experience that is configured to provide access to specific content based on object permissions data. An application extension is executable, by the first application, to extend content editing functionalities of the second application into the collaboration object. Responsive to specific content being associated with the collaboration object via the application extension, each of the instances of the second application may be automatically updated to provide direct access to the specific content. Thus, each user within the group defined for collaboration object can access the data file via the collaboration object and their own instance of the second application.

Abstract: The disclosure relates to technology for a navigation system that enhances the safety of drivers using fatigue detection mapping. The navigation system accesses data sources storing map data a route for drivers of one or more first vehicles. Based on the map data, a personalized fatigue map for a driver of a second vehicle is generated based on the map data. The personalized fatigue map displays predicted driver fatigue of the driver of the second vehicle on the route. Drivers in the first and second vehicles are monitored to detect driver fatigue and a level of the driver fatigue is measured according to a calculated fatigue score. When driver fatigue is detected, a recommendation is output to the driver of the second vehicle that is based on the level of the driver fatigue. The personalized fatigue map is updated to reflect the recommendation.

Abstract: A DSSE architecture network enables multi-user such as data owners and data users to conduct privacy-preserving search on the encrypted PHIs stored in a cloud network and verify the correctness and completeness of retrieved search results simultaneously is provided. The data owners and data users may be patients, HSPs, or combination thereof. An IoT gateway aggregates periodically collected data into a single PHI file, extract keywords, build an encrypted index, and encrypt the PHI files before the encrypted index and PHI files are transmitted to a cloud network periodically for storage thus enable the DSSE architecture network to achieve a sub-linear search efficiency and forward privacy by maintaining an increasing counter for each keyword at the IoT gateway. Since the PHI files are always transmitted and added/stored into the cloud storage over the cloud network, file deletion, file modification is eliminated.

Abstract: The present invention provides a CT triaxial test apparatus for hydrate-bearing sediment, and belongs to the technical field of fundamental physical property measurement of geotechnical engineering. In the apparatus, aiming at the defects of the invention “a visual test apparatus for mechanical characteristics of natural gas hydrate-bearing sediment”, the CT triaxial test apparatus for hydrate-bearing sediment is redesigned and optimized, on the premise of obtaining static and dynamic mechanical characteristics and creep characteristics of a hydrate reservoir, the stability of the triaxial apparatus during rotation due to scanning, the temperature control accuracy of a hydrate-bearing sample, and the X-ray penetration performance of the pressure chamber of the triaxial apparatus are improved, an optimal CT imaging effect is obtained, and powerful hardware support is provided to ascertain the reservoir deformation mechanism during hydrate decomposition.

Abstract: Radiating elements, antenna assemblies, and base station antennas including the same. For example, a radiating element is provided that includes a feed stalk and a radiator mounted on the feed stalk. The feed stalk includes a dielectric substrate, a first metal pattern printed on a first major surface of the dielectric substrate, and a second metal pattern printed on a second major surface of the dielectric substrate that is opposite the first major surface. The first metal pattern includes a first feed transmission line and a first feed welding region electrically connected to the first feed transmission line. The second metal pattern includes a second feed welding region electrically connected to the first feed welding region.

Abstract: In non-limiting examples of the present disclosure, systems, methods and devices for filtering notifications are provided. A notification may be received. A current focus state of a user may be determined. An application priority score for the application that generated the notification may be determined. A notification priority score for the notification may be determined. The notification priority score may be determined based on a contact importance score and/or a content importance score. A combined priority score may be determined from the application priority score and the notification priority score. The notification may be surfaced if the combined priority score meets a threshold surfacing value. The notification may be blocked if the combined priority score does not meet the threshold surfacing value.

Abstract: The present disclosure provides a solar heat absorber including: an inlet through which a heat collecting medium enters the solar heat absorber; a passage member configured to be fluidly connected with the inlet such that the heat collecting medium enters the passage member through the inlet; and a collection member configured to be fluidly connected with the passage member such that the heat collecting medium enters the collection member through the passage member. In the solar heat absorber according to the present disclosure, the ceramic particles are used as the heat collecting medium. In addition, the present disclosure also provides a solar heat collecting system including the solar heat absorber, and a solar power generation system including the solar heat collecting system.