Abstract: A package structure includes a die, an encapsulant laterally encapsulating the die, a warpage control material disposed over the die, and a protection material disposed over the encapsulant and around the warpage control material. A coefficient of thermal expansion of the protection material is less than a coefficient of thermal expansion of the encapsulant.

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: The present disclosure describes various aspects of adaptive current control in switching power regulators for fast transient response. In some aspects, a clock of a switching power regulator is prevented, in response to detecting a transient load, from affecting application of current to an inductor of the regulator. A first switch device applies current to the inductor of the regulator until inductor current reaches a maximum current level. A second switch device then enables the current to flow through the inductor until the inductor current reaches a current control signal based on an output voltage of the switching power regulator. In some aspects, an offset is also applied to the current control signal to further increase average inductor current. These operations may be repeated without interruption from the clock to quickly increase the inductor current, and thus current provided to the regulator output in response to the transient load.

Abstract: The present disclosure relates to the technical field of electronic medical treatment, and provides an electroencephalograph device and system, a computer device, and a storage medium. The electroencephalograph device includes: a stimulation unit, configured for generating a stimulation signal; and an acquisition unit, configured for acquiring physiological electrical signals of a human brain. The acquiring, by the acquisition unit, the physiological electrical signals of the human brain includes: when the stimulation unit does not apply the stimulation signal to a human body, acquiring, by the acquisition unit, the physiological electrical signals of the human brain according to a first acquisition parameter; and when the stimulation unit applies the stimulation signal to the human body, acquiring, by the acquisition unit, the physiological electrical signals of the human brain according to a second acquisition parameter, the first acquisition parameter being different from the second acquisition parameter.

Abstract: The present invention discloses a mattress cleaning device including a conveying assembly, a first brush roller set, a second brush roller set, and a third brush roller set. Multiple groups of the conveying assemblies are arranged horizontally at intervals to form a conveying channel, and multiple alternate spaces are formed between the multiple groups of the conveying assemblies. The first brush roller set includes at least two movable brush roller rotatably arranged in multiple alternate spaces, and the moving brush rollers can move up and down relative to the conveying assembly in a direction perpendicular to the conveying channel so as to clean the front face and the rear face, and the lower face of a mattress. The second brush roller set is rotatably arranged above the conveying assembly to clean the upper end face of the mattress.

Abstract: A supported metallocene catalyst includes a carrier and a metallocene component. The carrier includes an inorganic oxide particle and an alkyl aluminoxane material. The inorganic oxide particle includes at least one inorganic oxide compound selected from the group consisting of an oxide of Group 3A and an oxide of Group 4A. The alkyl aluminoxane material includes an alkyl aluminoxane compound and an alkyl aluminum compound that is present in amount ranging from greater than 0.01 wt % to less than 14 wt % base on 100 wt % of the alkyl aluminoxane material. The metallocene component is supported on the carrier, and includes one of a metallocene compound containing a metal from Group 3B, a metallocene compound containing a metal from Group 4B, and a combination thereof. A method for preparing the supported metallocene catalyst and a method for preparing polyolefin using the supported metallocene catalyst are also disclosed.

Abstract: Provided are a cathode catalyst layer and a preparation method and use thereof, and a fuel cell. The method includes: mixing a catalyst, water, and an alcohol with a pore-forming agent to obtain a mixture; dispersing the mixture into a Nafion solution to obtain a slurry; and coating the slurry onto a surface of a diffusion layer to obtain a coated diffusion layer, and subjecting the coated diffusion layer to calcination and freeze-drying in sequence to obtain the cathode catalyst layer.

Abstract: The present disclosure provides a control method applied to a first electronic device and a second electronic device in a physical environment. The first electronic device and the second electronic device are configured to communicate with each other through a first wireless connection established between the first electronic device and the second electronic device. The control method includes: by at least one of the first electronic device and the second electronic device, determining whether to update a map of the physical environment; and in response to a determination to update the map of the physical environment, establishing a second wireless connection different from the first wireless connection between the first electronic device and the second electronic device, wherein the second wireless connection is configured to transmit a map updated data, and the map updated data is configured to update the map of the physical environment.

Abstract: Provided is a display module. The display module includes: a display panel and a heat dissipation structure; wherein the display panel includes a substrate and a display substrate layer disposed on the substrate, and the heat dissipation structure is disposed on a side, distal from the display substrate layer, of the substrate; and a gap is formed between at least a partial region of the heat dissipation structure and the substrate.

Abstract: The present invention discloses compounds of Formula (I), and pharmaceutically acceptable salts, thereof: which inhibit coronavirus replication activity. The invention further relates to pharmaceutical compositions comprising a compound of Formula (I) or a pharmaceutically acceptable salt thereof, and methods of treating or preventing a coronavirus infection in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a compound of Formula (I) or a pharmaceutically acceptable salt thereof.

Abstract: An electronic cigarette atomization core and atomizer is disclosed. The electronic cigarette atomization core includes an atomization member (3), an outer sleeve (24), a connection sleeve (22), and atomization cotton (14). A lower segment of the connection sleeve (22) is sleeved outside an upper segment of the outer sleeve (24). The outer sleeve (24) is sleeved outside the atomization cotton (14). The outer sleeve (24) is provided with a first e-liquid passage hole (2401) capable of communicating an inner cavity of an electronic cigarette e-liquid bin (12) with the atomization cotton (14). The connection sleeve (22) is axially movable or circumferentially rotatable relative to the outer sleeve (24) to close or open the first e-liquid passage hole (2401). A buffer sealing structure is arranged between the connection sleeve (22) and the outer sleeve (24).

Abstract: Disclosed are a supported composite oxide catalyst and preparation and use thereof. The catalyst has the general formula: FeMoaSibXcOd, wherein X is a modified metal and is selected from alkali metals or alkaline earth metals; a=0.5-5, b=10-50, c=0.001-0.1, and d is the amount of oxygen element satisfying the chemical valence. The catalyst is prepared with the following method: (i) providing an acidic aqueous solution of a surfactant; (ii) dissolving an iron-containing compound and a complexing agent in the acidic aqueous solution, adding tetra C1-4 alkyl orthosilicate, and performing hydrolysis, crystallization and calcination to obtain a precursor; and (iii) forming a mixed liquid of the precursor, a molybdenum-containing compound and a modifying metal compound, drying same and calcinating the resultant, so as to obtain the supported composite oxide catalyst.

Abstract: A golf tee has a shaft and a top plate. The top plate is mounted on a top of the shaft. The top plate has an up-facing ball-supporting surface. The shaft inclines toward a direction of stroke and is oblique with respect to the ball-supporting surface, so that the shaft and a center line of the ball-supporting surface include an inclination angle therebetween. The top plate further has a plurality of spaced bulges arranged along a rim of the ball-supporting surface. Thereby, the golf tee helps improve hitting accuracy and carry distance.

Abstract: A system can include one or more processors and one or more non-transitory computer-readable media storing computing instructions that, when executed on the one or more processors, cause the one or more processors to perform operations including: (1) determining, by a predictive algorithm via a machine learning model, one or more predicted bids for one or more keywords in one or more campaigns; (2) adjusting the one or more predicted bids for the one or more keywords in the one or more campaigns; (3) pacing the one or more predicted bids for the one or more keywords by multiplying the one or more predicted bids by a pacing factor; iteratively adding real-time data to a training data set for the predictive algorithm; and iterating (1)-(3) at one or more periodic intervals as the real-time data is added to the training data set. Other embodiments are disclosed herein.

Abstract: According to certain embodiments, a method performed by a Radio Access Network, RAN, node includes transmitting a data collection request to a network control entity. The data collection request indicates a request to start data collection within a Radio Access Network, RAN. The method includes receiving a data collection response from the network control entity. The data collection response indicates whether the RAN can start the data collection procedure. In response to the data collection response indicating that the RAN can start the data collection procedure, the method includes transmitting a data collection configuration message initializing data collection by at least one User Equipment, UE.

Abstract: A driving signal processing method for a large touch display integrated (LTDI) system is provided. The LTDI system includes plural LTDI chips that are concatenated. The LTDI chips include a master LTDI chip and plural slave LTDI chips. The driving signal processing method includes: receiving, by the LTDI chips, display data from a timing controller; and dispersedly outputting, by the master LTDI chip and at least one of the slave LTDI chips, M gate control signals respectively corresponding to M gate lines of a display panel of the LTDI system according to the display data during the display stage of the display panel.

Abstract: A system including one or more processors and one or more non-transitory computer-readable media storing computing instructions that, when executed on the one or more processors, cause the one or more processors to perform functions comprising: calculating a first user propensity score and a second user propensity score for a user based on at least one feature vector of historical data of the user; using the first user propensity score to place the user into a first segment; using the second user propensity score to place the user into a second segment different than the first segment; and facilitating delivery of a message to an electronic device of the user based on the first segment and the second segment. Other embodiments are disclosed.

Abstract: An automatic shower head contains: a body and a shower scrubber. The body includes a casing, a receiving cap fitted with the casing, a handle, a first connection element, a first water guide ring, and multiple spray bars and a second water guide ring. At least one first seal ring is retained on a water conduit of the first connection element and the second water guide ring. The casing has a coupling loop. The shower scrubber includes a panel, a lid, an accommodation sleeve, a second seal ring, and a rotation element, and a fixing plug. The lid has a copper pin, a waterproof sheet, a first circuit board, a gear seat, a gear assembly, a gear shaft, a drive gear, a holder, a motor, a battery, a contact sheet, and a second circuit board.

Abstract: Systems and methods including one or more processors and one or more non-transitory storage devices storing computing instructions configured to run on the one or more processors and perform determining a respective interaction metric between at least two respective keywords of a plurality of keywords; constructing, using each respective interaction metric, as determined, a graph comprising a plurality of nodes connected by at least one edge; identifying one or more clusters of nodes using the graph; optimizing each cluster of nodes of the one or more clusters of nodes; and facilitating altering a graphical user interface (GUI) of an electronic device based upon a cluster of nodes of the one or more clusters of nodes, as identified and optimized. Other embodiments are disclosed herein.