Abstract: The present disclosure provides a microfluidic substrate and a microfluidic chip including the microfluidic substrate. The microfluidic substrate includes a plurality of microcavities arranged in an array, at least some of the plurality of microcavities are through holes, and a tangent plane at each of at least some points on a sidewall of each microcavity forms a non-perpendicular angle with a reference plane where the microfluidic substrate is located.

Abstract: Multi-antigenic human papilloma virus (HPV) molecular vaccine constructs for use and treatment of HPV-associated disorders and pathologies, such as HPV molecular vaccines targeting HPV16-, HPV18-, and HPV-45-associated pathologies.

Abstract: Provided are a photovoltaic power generation system and a fault protection method and device thereof, a combiner box, and an inverter, which relate to the technical field of photovoltaic power generation. The system includes a power conversion unit, a multi-pole linked switch, and N photovoltaic strings. The method includes: controlling, in response to a fault in the photovoltaic power generation system, a switch tube in the power conversion unit to short-circuit the positive input terminal and the negative input terminal of the power conversion unit, and controlling the multi-pole linked switch to be disconnected, such that at most three of the N photovoltaic strings are connected in parallel.

Abstract: The present invention introduces ionic polymers featuring with a spiro structure, which enhances the solubility and gas permeability of the ionic polymer while maintaining excellent conductivity, mechanical properties, and dimensional stability. This is achieved by incorporating a spiro fragment with a large free volume into the polymer backbone. As a result, the gas permeability of the catalyst layer prepared from this ionic polymer is improved, making it suitable as a catalyst binder for proton exchange membrane fuel cells (PEMFCs) or anion exchange membrane fuel cells (AEMFCs). Furthermore, the electrochemical performance of the fuel cell is enhanced. Additionally, the proton exchange membrane and anion exchange membrane derived from this ionic polymer containing a spiro structure effectively improve the conductivity of both types of membranes by increasing the space volume due to the presence of the large free volume spiro fragment.

Abstract: The application provides a preparation method and use of a diatom-bacterium symbiotic organic liquid fertilizer, and belongs to the technical field of biological fertilizers. The preparation method of the diatom-bacterium symbiotic organic liquid fertilizer includes the following steps: (1) mixing a compound bacterial powder with a waste liquid organic matter to allow first fermentation to obtain a small-molecule organic liquid fertilizer; (2) mixing diatom with the small-molecule organic liquid fertilizer to allow second fermentation to obtain a bio-organic fertilizer; and (3) mixing a microbial inoculant with the bio-organic fertilizer to allow third fermentation to obtain the diatom-bacterium symbiotic organic liquid fertilizer. In the application, the diatom-bacterium symbiotic organic liquid fertilizer prepared by the preparation method is used for soil improvement.

Abstract: Disclosed in the present invention are a polypeptide fragment, a derivative of the polypeptide fragment, and applications of the derivative of the polypeptide in the preparation of drugs for preventing and treating fibrosis diseases.

Abstract: A head-mounted device may include one or more scene cameras configured to capture images of a scene, one or more hands sensors configured to detect a user's hands, one or more supplemental emitters configured to provide supplemental illumination for the user's hands, and control circuitry configured to determine whether the user's hands are sufficiently illuminated, to determine whether the captured images are properly exposed, and to adjust the one or more supplemental emitters based on whether the user's hands are sufficiently illuminated and based on whether the captured images are properly exposed. The control circuitry can activate the supplemental emitters when the captured images are too dark or when one of the detected hands is too dark. The control circuitry can deactivate the supplemental emitters when one of the detected hands is too bright or when the captured images are overly exposed.

Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes: a base substrate including a display area and a first frame area located on one side of the display area; and a first power bus at least located in the first frame area. The first power bus includes a first sub-bus, a second sub-bus and at least two connecting wires. The first sub-bus is located between the second sub-bus and the display area, and the first sub-bus is electrically connected to the second sub-bus by means of the at least two connecting wires.

Abstract: A water resource circulation and purification device includes a floating member floating on water to receive salvaged floating objects, a first shaft rotatably connected to the floating member, a power mechanism configured to drive the first shaft to rotate, a plurality of fishing mechanisms configured to salvage the floating objects in the water along with rotation of the first shaft, a guiding member configured to guide a fishing claw of the fishing mechanism to rotate and move directly above the floating member, and a first mechanism configured to move the water relative to the floating member, to clean up different water areas; the floating objects within the fishing claw fallen onto the floating member with a gravity thereof, the fishing claw detached from the guiding member rotating under an action of an elastic element and leaving from directly above the floating member to reach an outer of the floating member.

Abstract: A method for mass rearing of Telenomus remus includes the following steps: (1) establishing a Telenomus remus population of a Corcyra cephalonica strain; (2) collecting Corcyra cephalonica eggs laid by Corcyra cephalonica on the day, and fixing the Corcyra cephalonica eggs on a sticker; (3) inoculating female Telenomus remus of the Corcyra cephalonica strain in the step (1) into the Corcyra cephalonica eggs in the step (2); and (4) after 24 h to 48 h of a parasitism, taking parasitic Corcyra cephalonica eggs out, and feeding the parasitic Corcyra cephalonica eggs under the following conditions: a temperature: 26±1° C., a relative humidity: 65±5%, and a photoperiod: L: D=14:10, where long axes of the Corcyra cephalonica eggs in the step (2) have a length of 0.48 mm to 0.60 mm. The method of the present disclosure has great significance for the long-term control of pests of the Noctuidae family.

Abstract: A method for protecting location privacy in mobile payment is provided. A decentralized coin mixing idea is introduced into mobile payment, and an anonymous transaction model and a reputation evaluation model are constructed. A user reputation evaluation scheme is designed, and a reputation value of a user is measured based on historical behavior of the user. An anonymous transaction scheme based on reputation evaluation and a double auction is designed, and a functional relationship between the reputation value of the user and an auction bid is established. Candidate collaborative users who meet a reputation requirement, a privacy requirement and a bid standard of a requesting user are selected through a double auction, to construct an anonymous set. The anonymous set is inserted between the user and a merchant to cut off a direct transaction association between the user and the merchant to protect the location privacy of mobile payment users.

Abstract: A semiconductor chip may include; a device layer including transistors on a substrate, a wiring layer on the device layer, a first through via passing through the device layer and the substrate, and a second through via passing through the wiring layer, the device layer and the substrate, wherein a first height of the first through via is less than a second height of the second through via.

Abstract: A steering wheel, including a cover, a safety airbag, and a frame, the safety airbag being accommodated in a space defined by the cover and the frame and being fixedly mounted on the frame, and the cover being connected to the frame in a suspended manner. The cover is a unitary structure, and is divided into a first functional region, a second functional region, and a third functional region. Surfaces of the first functional region and the third functional region are both provided with a touch film. At least three non-collinear force sensors are further provided in the space. Some of the force sensors are arranged to be opposite the first functional region, and the rest are arranged to be opposite the third functional region. A controller is further included. Also provided is a method for enabling a preset function in a vehicle by using a steering wheel.

Abstract: A grading system and an application of a hydrogenation catalyst and a grading method of the hydrogenation catalyst are provided. The system contains M hydrogenation catalysts sequentially filled in a material flow direction. An R value of an Nth hydrogenation catalyst is not less than an R value of an (N?1)th hydrogenation catalyst, and the R value of at least one Nth hydrogenation catalyst is greater than the R value of the (N?1)th hydrogenation catalyst. N is an integer greater than 2 and not greater than M; the R value is a ratio of molar content of the VIII group metal element in the hydrogenation catalyst characterized by an X-ray photoelectron spectrum to weight content of the VIII group metal element in terms of oxides in the hydrogenation catalyst characterized by an X-ray fluorescence spectrum. The hydrogenation catalysts having different surface nickel atom concentrations are used for grading, thereby improving denitrification and the hydrogenation saturation performance of a catalyst system.

Abstract: A cooling cigarette filter and a cigarette are disclosed. The cooling cigarette filter comprises a cooling section (2). The cooling section (2) comprises a cooling stick (201) formed from paper (5). The cooling stick (201) has one or more holes (202) communicating two ends of the cooling stick. And the surface of the paper (5) is coated with a cooling material. The cooling cigarette filter has the advantages of ensuring the amount of smoke and lowering the temperature of the smoke entering the mouth. Through the combination design of the structure of the cooling stick and the type and amount of the cooling material, the smoke can flow out of a smoke generation section rapidly and smoothly And the temperature of the high-temperature smoke before entering the mouth can be significantly lowered, thereby improving the comfort and satisfaction of smoking.

Abstract: In an example method, a mobile device obtains a signal indicating an acceleration measured by a sensor over a time period. The mobile device determines an impact experienced by the user based on the signal. The mobile device also determines, based on the signal, one or more first motion characteristics of the user during a time prior to the impact, and one or more second motion characteristics of the user during a time after the impact. The mobile device determines that the user has fallen based on the impact, the one or more first motion characteristics of the user, and the one or more second motion characteristics of the user, and in response, generates a notification indicating that the user has fallen.

Abstract: The present disclosure relates to systems, non-transitory computer-readable media, and methods for transferring global style features between digital images utilizing one or more machine learning models or neural networks. In particular, in one or more embodiments, the disclosed systems receive a request to transfer a global style from a source digital image to a target digital image, identify at least one target object within the target digital image, and transfer the global style from the source digital image to the target digital image while maintaining an object style of the at least one target object.

Abstract: A source driver and a method for color swapping are provided. The source driver includes: a processor configured to: obtain, from an application processor, a plurality of sub-pixel data, add a tag to each of the plurality of sub-pixel data to generate a plurality of new sub-pixel data, the tag indicating color information of the sub-pixel data, and perform color swapping on the plurality of new sub-pixel data; a multiplexer circuit communicatively coupled to the processor and configured to: obtain each of the plurality of color swapped new sub-pixel data in sequence, and select a corresponding gamma voltage according to the tag of the color swapped new sub-pixel data; and an analog amplifier circuit communicatively coupled to the multiplexer circuit and configured to provide a source driving signal to a corresponding sub-pixel in a pixel array according to the color swapped new sub-pixel data and the corresponding gamma voltage.

Abstract: A riding lawn mower includes: a seat; a frame; a mowing element; a deck surrounding and forming a mowing space for accommodating at least part of the mowing element; and a first motor for driving the mowing element to rotate. The first motor includes a rotor assembly including a rotor shaft enabled to rotate about a rotation axis and a stator assembly, a motor housing surrounding and forming an accommodation cavity for accommodating at least part of the stator assembly. The rotor shaft passes through the motor housing in a direction of the rotation axis and is at least partially located outside the motor housing; the deck is provided with a first through hole for the first motor to pass through so that the motor housing is at least partially located in the mowing space. The first motor of the riding lawn mower has a good cooling effect.