Abstract: According to examples, a wearable device may include a frame and a prescription lens mounted to the frame, in which the corrective lens may include a diffractive surface having features structured to have a certain correction level. The wearable device may also include at least one optical component mounted to the frame, the at least one optical component being positioned immediately adjacent to the corrective lens, in which the diffractive surface of the corrective lens causes the corrective lens to have a sufficiently thin edge to prevent the edge of the corrective lens from occluding the at least one optical component.

Abstract: A device for simulating suction penetration of suction caisson based on centrifuge model test includes a model box, a suction caisson model in the model box and containing a suction caisson and a connecting rod, a penetration device disposed above the model box and movably connected to the connecting rod, a vacuum system connected to the suction caisson, a lower part of the suction caisson is provided with soil, and an upper part of the soil is provided with a water body. The penetration device includes a guide rail and a drive lever. The drive lever penetrates through the model box and then is connected to an electromagnetic adsorption device, a bottom end of which includes a guide housing, and the connecting rod is inserted into the guide housing. The device can dynamically correct displacement deviation in a suction penetration process, thereby being continuously tested in a centrifugal state.

Abstract: The disclosure provides a method, a device, an apparatus, and a storage medium for identifying a type of atmospheric aerosol. The method includes: determining a depolarization ratio and an aerosol extinction coefficient of an atmospheric area to be identified according to a lidar signal and a relative humidity profile of the area; identifying a cloud type of the area according to the signal and the profile; and identifying a type of an atmospheric aerosol in the area based on the cloud type, the ratio and the coefficient. Relevant values are calculated based on lidar signals and the profile, clouds are identified first, and then different types of aerosols are further distinguished in combination with the relevant values, and a numerical determination standard is given to synchronously identify different types of aerosols including types of cloud, fog and other particulates in the atmosphere, thereby improving accuracy of identification.

Abstract: An LED lamp and a power supply module thereof are provided. The power supply module includes a driving circuit, a OVP circuit, and an impedance detection circuit. The OVP circuit is configured to determine whether an OVP condition is detected by sampling the driving signal, and the impedance detection circuit is configured to determine whether a user touching state is detected. When either the OVP condition or the user touching state is detected, the power switch of the driving circuit will be controlled to limit the amount of a current flowing through the power switch. In addition, the impedance detection circuit could detect the user touching state by comparing signals with a defined level sampled during each pulse, thus enhancing the detection accuracy.

Abstract: Disclosed is a diacylglycerol acyltransferase 1, a recombinant Saccharomyces cerevisiae containing the diacylglycerol acyltransferase 1, and application thereof in production of triacylglycerol. The diacylglycerol acyltransferase 1 of the invention has a function of catalyzing synthesis of triacylglycerol. After the recombinant Saccharomyces cerevisiae containing the diacylglycerol acyltransferase 1 of the invention is subjected to induction culture for 48 h, the content of total fatty acid and triacylglycerol in the recombinant Saccharomyces cerevisiae containing the diacylglycerol acyltransferase 1 can be respectively increased by 1.94 folds and 12.09 folds as compared with those of Saccharomyces cerevisiae without the recombinant diacylglycerol acyltransferase 1. The instant invention provides a method for improving the ability of microorganisms to produce polyunsaturated fatty acids (PUFAs) by means of genetic engineering.

Abstract: A joint segmenting and ASR model includes an encoder to receive a sequence of acoustic frames and generate, at each of a plurality of output steps, a higher order feature representation for a corresponding acoustic frame. The model also includes a decoder to generate based on the higher order feature representation at each of the plurality of output steps a probability distribution over possible speech recognition hypotheses, and an indication of whether the corresponding output step corresponds to an end of segment (EOS).

Abstract: The display panel includes a plurality of rows and a plurality of columns of pixel circuits, a plurality of rows of gate lines, a plurality rows of reset control lines, and a plurality of columns of data lines, a same row of pixel circuits corresponds to two rows of gate lines, and one/the other row of gate line is electrically connected to odd/even-numbered columns of pixel circuits in the row of pixel circuits, and provides a corresponding gate driving signal for the odd/even-numbered columns of pixel circuits; a same column of pixel circuits corresponds to two columns of data lines, and one/the other column of data line of the two columns of data lines is electrically connected to odd/even-numbered rows of pixel circuits, and provides a corresponding data voltage for the odd/even-numbered rows of pixel circuits.

Abstract: The present disclosure provides a cemented filling material with bionic structure, a preparation method and an application thereof, and belongs to the field of structural modification methods of cemented filling materials and research and development of civil materials with ultra-high energy absorption characteristics. The cemented filling material with bionic structure includes a bionic honeycomb skeleton and cemented filling slurry, where the cemented filling slurry is poured in the bionic honeycomb skeleton.

Abstract: A refrigerator includes a cabinet, a door for opening and closing the cabinet, and a hinge assembly for connecting the cabinet and the door, wherein the cabinet includes a rear wall and an opening provided opposite to each other, a direction from the rear wall towards the opening serves as a first direction, and when the door is in an opening process, the hinge assembly drives the door to move away from the cabinet in the first direction. Mutual separation of the door and the cabinet may be assisted under the action of the hinge assembly, thereby improving door opening smoothness.

Abstract: Disclosed are a method, device and system for dynamically controlling a gain of a Raman optical fiber amplifier. The method comprises: determining whether a target gain falls within a gain mask range; if the target gain falls within the gain mask range, directly locking a gain to the target gain; and if the target gain falls outside the gain mask range, locking the gain to a corresponding maximum gain in the gain mask range, and gradually increasing the locked gain according to a preset first step length until the target gain is reached or until at least one pump laser reaches a maximum output power. The invention enables an optical fiber amplifier to respond quickly to a change in an input optical signal, ensures gain stability, and ensures that no power overshoot or undershoot occurs in the non-switched optical channels in an optical path. Moreover, the invention minimizes an amount of time required to complete switching between gains.

Abstract: The present invention discloses a device of a polymeric bone conduction sound transmission component, a headset and a headset system, wherein a plurality of components of a sound generating unit are directly mounted on a housing; during operation of the device, only some of the components vibrate, and weight of the vibrating components is small, which can reduce the possibility of loose connection of the vibrating components.

Abstract: Embodiments described herein relate to a Radio Distribution Network Board, RDNB, for testing functionality of a plurality of radio chains, and to a method of calibrating a plurality of radio chains using said RDNB. The RDNB comprises a plurality of first ports for connecting to the plurality of radio chains; a plurality of second ports for connecting to one or more external devices, wherein each first port is coupled to a respective second port; and a plurality of coupling paths, wherein each coupling path is configured to provide coupling between two first ports, and wherein each coupling path comprises one or more non-directional power splitter/combiners.

Abstract: A video-based interaction method includes playing a video on a video playback interface to which a target object is logged in, acquiring a local viewing marking record of the video and scene identifiers of markable scene clips in the video, comparing the local viewing marking record with the scene identifiers to determine an unmarked target scene clip in the video, displaying, in response to playing to the target scene clip and on the video playback interface, a target scene clip marking entry that indicates performing viewing marking on the target scene clip, and displaying a viewing marking credential for the target clip in response to a viewing marking trigger operation on the target scene clip marking entry. The viewing marking credential covers a part of the video playback interface, is an independent operable object, and includes description information of the video and identity information of the target object.

Abstract: Disclosed is a porous silicon negative electrode material, comprising a sparse-silicon inner core, and a transition ring, a dense-silicon ring and a carbon coating layer which are sequentially coated on the surface of the sparse-silicon inner core. In the sparse-silicon inner core, the transition ring and the dense-silicon ring, the porosity sequentially decreases, and the silicon density sequentially increases. Further disclosed are a negative electrode sheet and a lithium-ion battery which are prepared from the described porous silicon negative electrode material. The porous silicon negative electrode material of the present disclosure effectively reduces the expansion and contraction stress of the electrode material during cycle and slows down the capacity attenuation, and thus the battery capacity retention rate is high, and the cycle performance is stable.

Abstract: The present disclosure provides a display substrate, a manufacturing method of the display substrate and a display apparatus. The display substrate includes a base substrate; an alignment layer, on the base substrate; a first electrode, located between the base substrate and the alignment layer and being in contact with the alignment layer; and a pattern layer, located between the base substrate and the alignment layer and being in contact with the alignment layer. An orthographic projection of the pattern layer on the base substrate does not overlap an orthographic projection of the first electrode on the base substrate, and a ratio of a contact angle of the pattern layer to a contact angle of the first electrode is greater than or equal to 7/12 and less than 3/2.

Abstract: A data transmission method for a virtual reality system, the data transmission method including: performing, by a first processor, image sampling on an image to be transmitted to obtain a first image; performing, by the first processor, image sampling on the image to be transmitted to obtain a second image; transmitting, by the first processor, the first image and the second image to a virtual reality apparatus; receiving the first image and the second image by the virtual reality apparatus and processing the first image and the second image by the virtual reality apparatus to obtain an image to be displayed; and displaying the image to be displayed by the virtual reality apparatus.

Abstract: A vacuum storage device includes a suction base, which is provided with a first suction port; a storage box configured to be detachably fixed to the suction base, defining a storage space within; where the storage box has a suction port; a vacuum pump configured to sequentially extract part or all of the air from the storage space through the first suction port and the suction port. The vacuum storage device allows for easy retrieval of ingredients into the storage, enhancing the user experience. There is also provided a refrigerator having the vacuum storage device.

Abstract: Provided is a display panel. The display panel includes a substrate including a display region and a non-display region surrounding the display region; and a shift register unit, disposed in the non-display region; wherein the shift register unit includes a first shift circuit and a second shift circuit; wherein the first shift circuit is coupled to a first clock terminal, a second clock terminal, an input signal terminal, a first power terminal, a second power terminal, and a shift node; and the second shift circuit is coupled to the shift node, the first clock terminal, the second clock terminal, a third clock terminal, an enable control terminal, an output control terminal, the first power terminal, the second power terminal, and an output terminal.

Abstract: A method and apparatus for implementing multicast. When a multicast source performs route advertisement, route update is performed on a cross-DC integrated device, and a received device identifier and a received AS number are replaced with a device identifier and an AS number that are of the integrated device. In this way, when a multicast user joins the multicast source, each network device in the network can trace the multicast source based on a received route, and determine a multicast path that is from the multicast source to the multicast user. Therefore, it is possible to accurately perform, in a NG MVPN, cross-DC multicast on traffic of the multicast source.

Abstract: A display substrate and an electronic device are provided. The display substrate includes a base substrate, including a display region and a peripheral region on at least one side of the display region; and a shift register unit and a first clock signal line in the peripheral region of the base substrate, wherein the first clock signal line extends along a first direction on the base substrate, and is connected to a first clock signal terminal to be configured to provide a first clock signal to the shift register unit; the shift register unit includes an input circuit, an output circuit, a first control circuit, and an output control circuit; the output control circuit includes an output control transistor and a first capacitor, and the output circuit includes an output transistor and a second capacitor.