Abstract: Systems and methods for smart sensors are provided. A smart sensor includes: a case; a power adapter configured to be plugged directly into an electrical outlet; a computer processor; a microphone; a speaker; a camera; at least one sensor; a control switch; a sync button; a USB port; and a memory storing: an operating system; a voice control module; a peer interaction module; a remote interaction module; and a cognitive module. In embodiments, the power adapter includes prongs that extend from a back side of the case, and the microphone, the speaker, the camera, and the at least one sensor are on a front side of the case opposite the back side of the case.

Abstract: Embodiments of the present disclosure provide a cooling dispensing unit for a data center and a data center machine room, belonging to the field of liquid cooling technology. The cooling dispensing unit for the data center includes an outer box and components in the outer box, where the components in the outer box include a heat exchange component, a first cooling liquid pipeline, a second cooling liquid pipeline, and a canned motor pump. The heat exchange component is connected to a tank of the data center through the first cooling liquid pipeline and is connected to an external refrigeration device through the second cooling liquid pipeline. The canned motor pump is installed on the first cooling liquid pipeline and is configured to convey the cooling liquid in the first cooling liquid pipeline.

Abstract: A spherical carrier for olefin polymerization catalysts has at least one magnesium-containing compound having a structure represented by formula (1). The spherical carrier has a relatively good particle morphology, and substantially no abnormally morphological particles will appear. A method for preparing the spherical carrier can be used to prepare a carrier having a small particle size and greatly expands the particle size range of the preparable carrier. When the catalyst prepared by using the carrier is used for olefin polymerization, polymerization activity is good, substantially no abnormally morphological material is present, and hydrogen response is good.

Abstract: Embodiments of this application provide a semiconductor device, an electronic device, and a semiconductor device preparation method, and relate to the field of chip manufacturing and packaging technologies, to improve heat dissipation efficiency of the semiconductor device without increasing a size. The semiconductor device includes: a substrate, a source, a drain, a gate, and a groove. The source, the drain, and the gate are all formed on the substrate, and an active region is formed between the source and the drain on the substrate. The groove is disposed in the substrate, and a spacing is formed between the groove and the active region. A heat dissipation layer is formed in the groove, and a coefficient of thermal conductivity of the heat dissipation layer is greater than that of the substrate.

Abstract: A light control film comprising a light input surface and a light output surface opposite the light input surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface, wherein each absorptive region has an aspect ratio of at least 30, and wherein each transmissive region has a first refractive index; and a plurality of low index layers, wherein each low index layer is disposed between each transmissive region and an adjacent absorptive region, and wherein each low index layer has a second refractive index less than the first refractive index of each transmissive region.

Abstract: A copolymer contains, based on the total amount of structural units of the copolymer, 90-99 mol % of propylene structural units and 1-10 mol % of butene structural units. The xylene solubles content of the copolymer is less than or equal to 4 wt %, and preferably less than or equal to 3 wt %. The propylene-butene copolymer is substantially free of fraction having a molecular weight lower than 1000. The copolymer has a melt flow index of greater than or equal to 20 g/10 min as measured at 230° C. under a load of 2.16 kg. The propylene-butene copolymer has a high melt flow index and few xylene solubles, and does not contain a phthalate-type plasticizer, and can be used in fields such as food and medical and health services.

Abstract: A catalytic reaction unit has a plurality of catalyst bed layers arranged vertically, each of the catalyst bed layers being filled with a solid catalyst, and an inclined surface on the upper part of the corresponding solid catalyst arranged between adjacent catalyst bed layers; a liquid phase feeding subunit arranged above the topmost catalyst bed layer, and the liquid phase feed is guided by the inclined surface to sequentially enter each catalyst bed layer from top to bottom; a gas phase feeding subunit arranged between the catalyst bed layer of an upper layer and the inclined surface of the next layer, and a gas phase channel relatively isolated from the gas phase feeding subunit. The gas phase product generated after the gas-phase feed and the liquid phase feed react in the catalyst bed layer directly enters the gas phase channel.

Abstract: An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof and a light redirecting layer disposed on the extended emission surface. The light redirecting layer has a structured major surface that includes a regular array of light redirecting structures, each light redirecting structure including a plurality of facets; and a plurality of discrete spaced apart window segments. The optical system includes a plurality of reflective segments where each reflective segment is disposed on a corresponding window segment. For substantially normally incident light, each reflective segment has a total: average optical reflectance of at least 30% in a visible wavelength range extending from about 420 nm to about 650 nm; and optical transmittance of at least 10% for at least one infrared wavelength in an infrared wavelength range extending from about 800 nm to about 1200 nm.

Abstract: The present disclosure belongs to polymercaptan compounds and application fields thereof, and particularly relates to a polymercaptan compound and a preparation method thereof, a curing agent, a resin composition, an adhesive and a sealant. The polymercaptan compound is represented by formula (I), wherein R1, R2, R3, R5, R7 and R8 are each independently selected from one of a hydrogen atom, an alkyl group with 1-5 carbon atoms and an alkoxy group with 1-5 carbon atoms, R4 and R6 are each independently selected from an alkylene group with 1-5 carbon atoms, and m and n are each independently 0, 1, 2 or 3.

Abstract: Provided are a dielectric material and a method for manufacturing the same. The dielectric material includes: subjecting a foamed sphere obtained by a primary foaming to a second foaming in a second moulding chamber filled with CO2 at a second temperature in the range of 20° C. below Tm to 5° C. below Tm and under a second pressure of 15-20 MPa for 30-3600 min to obtain the dielectric material, wherein the primary foaming comprises specific steps of: foaming a foaming material sphere with a diameter of 20-800 mm in a first moulding chamber filled with CO2 at a first temperature in the range of 80° C. below Tm to 20° C. below Tm and under a first pressure of 15-20 MPa to obtain the foamed sphere. Further provided is a dielectric material manufactured by the method above.

Abstract: A soluble metal sealing ring with a controllable dissolution rate and preparation process thereof include an aluminum alloy sealing ring matrix and a composite coating coated on an outer surface of the aluminum alloy sealing ring matrix whose standard electrode potential is greater than ?0.3 volts (V). The preparation process includes: (1) preparing a high-plastic aluminum alloy; (2) preparing the aluminum alloy sealing ring matrix by machining; (3) annealing the aluminum alloy sealing ring matrix; (4) mixing raw materials of the composite coating evenly; (5) preparing the composite coating on an outer surface of the aluminum alloy sealing ring matrix; (6) preparing holes. The soluble metal sealing ring solves problem that good sealing performance and good dissolving performance are difficult to obtain simultaneously in the existing product, and has advantages of good sealing performance, controllable dissolving rate, no blockage and others.

Abstract: A method includes detecting a power-up event associated with a memory sub-system comprising a plurality of blocks of memory cells having blocks of memory cells associated therewith, responsive to detecting the power-up event and prior to receipt of signaling indicative of a host initiation sequence, determining that a block of memory cells associated with a respective block among the plurality of blocks of memory cells is an open virtual block of memory cells, determining that the respective block associated with the open virtual block of memory cells exhibits greater than a threshold health characteristic value, and selectively performing a media management operation of a respective block of memory cells associated with the open virtual block of memory cells in response to the determination that the respective block exhibits greater than the threshold health characteristic value.

Abstract: Disclosed are a vertical motion protection method and device based on a dual-stage motion system of a photolithography machine. The method comprises: according to a distance between measured points and reference points of the eddy current sensor and coordinates of the reference points of the eddy current sensor, calculating coordinates of the measured points on a lower surface of the micro-motion stage respectively; calculating a point normal form equation of the micro-motion stage at the current time using measured coordinates of the measured points on the micro-motion stage, then substituting X and Y coordinates of the measured points on the translated micro-motion stage to determine a maximum height of the micro-motion stage at the current time; and comparing the maximum height with a height threshold, if the maximum height exceeds the height threshold, shutting down for protection, or else continuing to operate the system.

Abstract: A light control film includes a plurality of substantially parallel optical cavities. Each of the optical cavities has a height H along a thickness direction of the light control film and a minimum lateral dimension W along an in-plane width direction orthogonal to the thickness direction, where H?W. The optical cavities are substantially filled with a liquid including a plurality of light absorbing particles configured to move along the thickness direction in response to one or more applied signals or fields such that the movement along the thickness direction causes each of the optical cavities to transition between a substantially opaque state and a substantially transparent state. A full viewing angle of the light control film increases when the optical cavities transition from the substantially opaque state to the substantially transparent state.

Abstract: An optical film for reducing at least one of sparkle and moire in a display system includes a structured first major surface that, in at least a first cross-section in a first plane substantially orthogonal to the optical film, has a sinusoidal shape having a variable pitch of greater than about 0.5 microns. For a substantially normally incident light and blue, green, and red wavelengths that are at least 50 nm apart from each other and are disposed within respective blue, green, and red wavelength ranges, optical transmissions of the optical film versus transmitted angle for the blue, green and red wavelengths have respective blue, green, and red transmission bands disposed at angles greater than about 1 degree and having respective blue, green, and red full width at half maxima (FWHMs), at least two of which at least partially overlap.

Abstract: The technology of this application relates to a high electron mobility transistor including a GaN substrate layer, a barrier layer, a circuit layer, and a field plate that are sequentially stacked. The GaN substrate layer includes a main body layer and a channel layer that are stacked, the channel layer is adjacent to the barrier layer, the circuit layer includes a source, a drain, and a dielectric layer, the dielectric layer is disposed between the source and the drain, the field plate is disposed on a side that is of the dielectric layer and that is away from the barrier layer, an orthographic projection of the field plate on the channel layer is a field plate projection, the channel layer includes a modulation region and a non-modulation region, the non-modulation region surrounds the modulation region, the modulation region and the field plate projection at least partially overlap.

Abstract: This invention discloses a model test apparatus and method for shield post-wall grouting and tube sheet uplift under high water pressure conditions, comprising main body box, tension apparatus, shield system, grouting system, ground stress loading system, water injection system, and monitoring system. The main body box comprises the shield shell system and model soil inside. The ground stress loading system and water injection system realize the simulation of the complex underground soil and muddy water environment by applying stress and water pressure to the model soil inside the main box. While the tension apparatus makes the shield shell moving forward, the grouting system injects slurry into the gap between the shield shell and the tube sheet. The integrated model test of visual shield grouting and tube sheet uplift, the real-time multi-physical field responses, and the longitudinal deformation mechanism have been realized and revealed under high water pressure conditions.

Abstract: The present application discloses an integrated structure of MOS transistors having different working voltages. A second spacer of a second MOS transistor having a middle second working voltage is formed by adding a third sub-spacer on the basis of a first spacer of a first MOS transistor having a relatively low first working voltage, and the first spacer is formed by stacking a first sub-spacer and a second sub-spacer. The thickness of the second spacer is adjusted via the third sub-spacer, so as to ensure that a GIDL leakage of the second MOS transistor under the second working voltage satisfies a requirement. The present application also discloses a method for manufacturing an integrated structure of MOS transistors having different working voltages.

Abstract: The present disclosure relates to a slip ring assembly. The slip ring assembly may include a first slip ring, a second slip ring, and a transmission component. The transmission component may be configured to facilitate at least one of: data transmission of the first slip ring, data transmission of the second slip ring, power transmission of the first slip ring, or power transmission of the second slip ring.

Abstract: The disclosure relates to the technical field of battery charging and swapping, and in particular, to a control method and system for a battery charging and swap station, a medium, an apparatus, and a battery charging and swap station. The disclosure is intended to solve the problem that a battery charging and swap station is prone to false alarm and halt at a low temperature. To this purpose, the battery charging and swap station in the disclosure includes a battery swap apparatus. The battery swap apparatus includes a locking/unlocking mechanism. The locking/unlocking mechanism is configured to be capable of locking and unlocking a battery locking mechanism through rotation of a locking/unlocking head of the locking/unlocking mechanism.