Abstract: Example implementations described herein are directed to systems and methods for predictive maintenance with health indicators using reinforcement learning. An example implementation includes a method to receive sensor data, operational condition data, and failure event data and generate a model to determine health indicators that indicate equipment performance based on learned policies, state values, and rewards. The model is applied to external sensor readings and operating data for a piece of equipment to output a recommendation based on the model.

Abstract: A device-to-device (“D2D”) communication method includes sending first control signaling to first user equipment, sending second control signaling to second user equipment, and sending N pieces of third control signaling to N third user equipment. The method also includes receiving first channel quality feedback signaling fed back by the first user equipment, second channel quality feedback signaling fed back by the second user equipment, and receiving N pieces of third channel quality feedback signaling fed back by the N third user equipment. The method further includes detecting channel quality between the D2D user equipment and a base station, and determining a D2D communication mode based on the feedback signaling and the channel quality between the D2D user equipment and the base station. The method additionally includes determining a D2D communication mode, and determining target third user equipment paired with the D2D user equipment based on the determined D2D communication mode.

Abstract: Embodiments of the present application provide a signal communication method, including: a first base station determines a second timing for sending a first symbol to a terminal and a first timing for sending the first symbol to a second base station, where the first timing is at least determined by the second timing and a time offset between base stations; the first base station sends the first symbol to the second base station by using the first timing.

Abstract: A sealed quick release structure includes a main enclosure provided with an accommodation member and a mounting surface, the mounting surface including an opening in communication with the accommodation member; a sealing cover accommodated in an accommodation groove and slidable in the accommodation groove to cover and seal the opening; and a fixing cover detachably disposed at the mounting surface and including the accommodation groove, the fixing cover being configured to slide relative to the mounting surface and the sealing cover between a lock position, at which the fixing cover is connected with the main enclosure and is pressed against the sealing cover; and an unlock position, at which the fixing cover is separated from the main enclosure to allow the sealing cover to be separated from the opening.

Abstract: In some examples, candidate projection enumeration based query response generation may include obtaining a query, and identifying, based on the query, a plurality of candidate columns from at least one table to respond to the query. Using a tree-based model, the candidate columns may be analyzed to generate a candidate set of projections to respond to the query. Each candidate projection of the candidate set of projections may include a sort order associated with at least one candidate column of the candidate columns, a segmentation key value associated with at least one candidate column of the candidate columns, and a replication value associated with the candidate projection. Based on the candidate set of projections, a response to the query may be generated.

Abstract: A visual privacy system unilaterally blocks rolling shutter cameras by providing a periodically interrupted ambient light source imposing bright and dark bands on the image yet at a frequency imperceptible to human observers in the environment. Communication of the modulation pattern to authorized cameras allows unaffected imaging in these regions by authorized individuals. The system also contemplates operation in a barcoding mode with a light modulation providing embedded barcodes that can be extracted from images taken in the region to indicate that the images were improperly acquired and to block the images in certain applications.

Abstract: A GIS mechanical fault diagnosis method and the device are disclosed. The method includes: collecting vibration signals to be measured of various excitation sources of GIS in mechanical operation; performing wavelet packet-feature entropy vector extraction on the vibration signals to be measured, when it is determined that the vibration signals to be measured are abnormal according to standard vibration signals in the normal state; inputting the extracted wavelet packet-feature entropy vectors into the pre-trained BP neural network for GIS mechanical fault identification, and outputting the corresponding fault. The disclosure integrates the vibration signals under the action of various excitation sources, extracts the feature entropy vectors according to the entropy theory, and constructs and trains a BP neural network that can classify and recognize various GIS mechanical faults, so as to perform comprehensive and effective GIS mechanical faults diagnose.

Abstract: A method includes: setting target white color coordinates, a target white luminance and a gamma value; calculating a first luminance value of each primary color at each gray scale; measuring color coordinates of the primary color at each gray scale, and generating a list of a correspondence among the gray scale, the first luminance value and the color coordinates of the primary color; selecting a plurality of gray scales, and obtaining color coordinates corresponding to one of the plurality of gray scales; calculating a second luminance value of the primary color at each of the plurality of gray scales; and obtaining and storing a luminance correction relationship of the primary color according to the second luminance value of the primary color at each of the plurality of gray scales and the first luminance values corresponding to each of the plurality of gray scales.

Abstract: A three-level modulation for an isolated multilevel DC/DC resonant converter offers output voltage regulation capability with fixed switching frequency and achieves high efficiency along with soft-switching of the power switches. The three-level modulation enables current balance in all power devices, therefore, realizes better thermal performance and longer circuit life. An efficient control method that combines the three-level modulation with conventional frequency modulation achieves a wide output voltage range with a narrow switching frequency range. At any given time, a control circuit selects one of two different modulation schemes to operate the primary-side switches of the resonant converter based on an output voltage, or to one or more external control signals. Together with a selected device switching frequency and duty cycles, the two modulation schemes generate different voltage waveforms to a primary-side transformer, which are coupled to the secondary-side to provide different output voltages.

Abstract: Certain embodiments involve a modular medium voltage fast charger. The modular medium voltage fast charger can include: (1) a predictive power factor correction (“PFC”) controller (or predictive controller) for series-interleaved multi-cell three-level boost (“SIMCB”) converters, (2) an active neutral point clamped (“NPC”) dual active bridge (“DAB”) modulation scheme to achieve soft switching, (3) an auxiliary capacitor to reduce NPC DAB turn-off voltages, (4) a comprehensive and scalable protection circuit, and (5) a high-isolation pulse transformer with a bobbin for reducing coupling capacitance of the pulse transformer.

Abstract: A modular elevator sheave comprises a mandrel body, wherein multiple sheave units are arranged side by side along the mandrel body, and wherein, the outer wall of the outer circumference of the sheave unit is provided with a groove. In this structural composition, the mandrel body with multiple sheave units, which increases the overall strength and rigidity of the sheave. Furthermore, the number of sheave unit used can be increase and decrease depending on the need or situation, and it should be noted that since the sheave unit can be replaced individually when damaged, it is easier to maintain and reduce repairing costs.

Abstract: The present invention discloses a selenium-doped MXene material and a preparation method thereof, comprising the following steps: (1) adding MXene and an organic selenium source into a dispersant, and stirring to prepare a dispersion with a concentration of 10 mg/ml to 100 mg/ml, wherein a mass ratio of MXene and an organic selenium source is 0.1 to 1:1; (2) transferring the dispersion into a reaction kettle, heating to 110° C. to 230° C., reacting for 10 h to 30 h, and then naturally cooling to a room temperature; and (3) washing the product obtained in the step (2) with a cleaning agent, centrifuging to collect a precipitate, and drying the precipitate under vacuum to obtain the selenium-doped MXene material. The composite material prepared by the present invention has high specific surface area, good electrical conductivity, cycle stability performance, rate performance and high theoretical specific capacity.

Abstract: A seed sorting system for sorting seeds includes a seed transfer station configured to move seeds through the system. An imaging assembly includes a first camera mounted above the seed transfer station and configured to acquire images of the seeds as the seeds move through the system and a second camera mounted below the seed transfer station and configured to acquire images of the seeds as the seeds move through the system. A sorting assembly is configured to sort the seeds into separate bins based on the acquired images of the seeds.

Abstract: The present disclosure relates to a method and an apparatus for controlling a drive current of a display panel, an electronic device, and a storage medium. A standard drive current of the display panel is calculated based on the power function of the display panel. An actual drive current is detected in a working process of the display panel, and it is determined whether the actual drive current exceeds the standard by comparing the actual drive current with the standard drive current. The actual drive current is regulated if the actual drive current exceeds the standard.

Abstract: The present disclosure discloses a skin penetration enhancing composition and a use thereof in preparation of a skin delivery formulation. The skin penetration enhancing composition comprises sponge spicules and nanoparticles. The nanoparticles comprise at least one of one or more drugs or one or more cosmetic active ingredients.

Abstract: A resource statistics collection method and apparatus, and a terminal are provided. The method includes: recording a process running on a terminal at each of at least two time points; for each of the time points, obtaining at least one hardware resource invoked by the process running at the time point; obtaining a process set including processes running at the at least two time points; and obtaining, according to the hardware resource invoked by the process in the process set, information about the at least one hardware resource occupied by an application associated with the process in the process set. In embodiments of the present invention, statistics collection is performed per process, so that information about the hardware resource occupied by each application of the terminal can be obtained, and a statistical granularity is relatively fine.

Abstract: A data processing method for an analogue modelling experiment of a hypergravity geological structure includes steps of: performing two-dimensional photographing and three-dimensional elevation scanning with an analogue modelling experiment device with a curved model surface for the hypergravity geological structure, so as to collect initial elevation data and initial velocity field data; and correcting the initial elevation data and the initial velocity field data to obtain corrected elevation data and corrected velocity field data. The data processing method can realize orthographic correction and three-dimensional projection transformation of initial elevation data, as well as orthographic correction and two-dimensional projection transformation of initial velocity field data, which can more realistically and objectively reflect the experimental phenomenon, which is conducive to truly expressing the experimental results and facilitates the analogy analysis with the actual geological prototype.

Abstract: An air fryer with a flip function includes a body and an internal cavity installed in a lower interior of the body. A first wind wheel is mounted on an inner side at an upper end of the internal cavity. A heating pipe is installed below the first wind wheel. A partition is arranged above the internal cavity within the body. A cold circulation channel is formed between the internal cavity, the partition and the body. A second wind wheel is mounted on an upper end of the cold circulation channel. A detachable flip rack is horizontally provided in a middle portion of the internal cavity. A drive motor is arranged on an outer side of the internal cavity to drive one end of the detachable flip rack to rotate. An opening is provided on one side of the inner cavity. A flip openable panel is provided at the opening.

Abstract: Embodiments of the present disclosure relate to a recurrent framework based on Recurrent Highway Networks (RHNs) for sequence modeling using batch normalization. In certain embodiments, constraints within the RHNs are relaxed to reduce or avoid gradient vanishing or exploding by normalizing the current transition units in highway layers.

Abstract: A structured tissue belt assembly including a supporting layer, a non-woven web contacting layer, and one or more laser welds that attach the bottom surface of the web contacting layer to the top surface of the supporting layer. The structured tissue belt assembly allows for air flow in x, y and z directions. In exemplary embodiments, the structured tissue belt assembly has an embedment distance between the supporting layer and the web contacting layer of 0.05 mm to 0.60 mm and a peel force between the web contacting layer and the supporting layer of at least 650 gf/inch.