Abstract: A method for deformation measurement is provided. When the mobile platform moves to a first monitoring position in an area to-be-measured, a first image is obtained by photographing J1 monitoring points in a first area to-be-measured in the area to-be-measured, and a second image is obtained by J2 monitoring points in a second area to-be-measured in the area to-be-measured. When the mobile platform moves to a second monitoring position, a third image is obtained by photographing the J1 monitoring points, and a fourth image is obtained by photographing the J2 monitoring points. J1 first monitoring points are determined according to the first image and the third image, and J2 second monitoring points are determined according to the second image and the fourth image. A horizontal displacement amount and a vertical subsidence amount of each of the J1 first monitoring points and the J2 second monitoring points are obtained.

Abstract: The present disclosure provides a hydraulic phosphogypsum (PG)-based cementitious material, and a preparation method and use thereof, belonging to the technical field of cementitious materials. The present disclosure provides a hydraulic PG-based cementitious material, including the following raw materials: modified PG particles and an auxiliary active powder, where the modified PG particles have a dosage of 50 wt % to 95 wt %; the modified PG particles are obtained by conducting modification on original PG particles through a calcareous material, and the calcareous material has a mass 3% to 5% of that of the original PG particles; and the original PG particles have typical dimensions of: a length of 50 ?m to 200 ?m and an aspect ratio of 1.5 to 5; and at least 80% of materials in the auxiliary active powder have a particle size of less than or equal to 60 ?m. In the present disclosure, the hydraulic PG-based cementitious material adopts a particle accumulation method of gap grading.

Abstract: An impact tool includes an impact assembly and a housing. The impact assembly is used for applying an impact force to an output shaft and includes a main shaft driven by a drive shaft, an impact block connected to the main shaft, and a hammer anvil mating with and struck by the impact block. A motor is at least partially accommodated in the housing. A length L from a rear end of the housing to a front end of the output shaft is greater than or equal to 78 mm and less than or equal to 97 mm and an outer circumferential diameter D of the housing is less than or equal to 60 mm.

Abstract: This application relates to the field of electronic device technologies, and provides an electronic component with an enclosure frame, a circuit board with an electronic component, and an electronic device, to effectively protect the circuit board from being corroded, thereby prolonging a service life of the electronic device. This application is applied to a charging pile for charging a new energy electric vehicle. An electronic component with an enclosure frame includes an enclosure frame and an electronic component. The enclosure frame defines a cavity that is closed or that has one open end; when the electronic component with an enclosure frame is connected to a circuit board, the enclosure frame and the circuit board can define a cavity that is closed or that has one open end.

Abstract: Disclosed are an alkali-activated geopolymer coating, and a preparation method and use thereof. The alkali-activated geopolymer coating, is prepared by raw materials including the following components: an aluminosilicate mineral, an alkali activator, and a performance additive; wherein the aluminosilicate mineral comprises fly ash, slag, and metakaolin; the performance additive comprises a polymer powder, titanium dioxide, a silicone defoamer, and a water-reducing admixture; and a mass ratio of the aluminosilicate mineral, the alkali activator, and the performance additive is in a range of 100:(60-80):(4-15).

Abstract: Disclosed are a metasurface-based structured light 3D imaging system and method, which use a metasurface-based control device to realize high-quality control of a laser beam, use a MEMS micromirror to scan and project the laser beam, and realize high-precision reconstruction of 3D information of the surface of an object together with related structured light design and demodulation methods. The invention realizes fine control of a structured light, improves the quality of a structured light field, reduces laser speckles and improves power, thus improving 3D imaging precision and robustness.

Abstract: Disclosed are a metasurface-based structured light 3D imaging system and method, which use a metasurface-based control device to realize high-quality control of a laser beam, use a MEMS micromirror to scan and project the laser beam, and realize high-precision reconstruction of 3D information of the surface of an object together with related structured light design and demodulation methods. The invention realizes fine control of a structured light, improves the quality of a structured light field, reduces laser speckles and improves power, thus improving 3D imaging precision and robustness.

Abstract: The present disclosure relates to an optimization method and system for hybrid FRP and steel bars. The optimization method includes: determining a cross-sectional bending bearing capacity, a maximum cross-sectional bending bearing capacity, and a minimum cross-sectional bending bearing capacity according to basic material parameters and a design value of a bending moment; determining whether the cross-sectional bending bearing capacity, the maximum cross-sectional bending bearing capacity, and the minimum cross-sectional bending bearing capacity meet a first preset condition; if yes, determining a maximum steel bar area according to the basic material parameters; determining a maximum ductility of a steel bar beam; determining whether the maximum ductility and the target ductility meet a second preset condition; if yes, determining a minimum steel bar area and a maximum FRP bar area according to the maximum steel bar area; and determining an actual steel bar area and an actual FRP bar area.

Abstract: A method for determining an optimal fiber content and fiber slenderness ratio in compression-cast fiber-reinforced concrete (CCFRC). The method includes: step 1, determining an optimal range of pressure of CCFRC with a mix proportion; step 2, applying optimal compressive stress to a fiber-reinforced concrete mixture, and performing a uniaxial compression test after demolding and curing; step 3, keeping the slenderness ratio of the fiber in step 1 and the optimal compressive stress in step 2 unchanged, decreasing or increasing content of the fiber, and repeating step 2 to obtain a mechanical property of CCFRC with different content of the fiber; and step 4, keeping the content of the fiber in step 1 and the optimal compressive stress in step 2 unchanged, decreasing or increasing a slenderness ratio of the fiber, and repeating step 2 to obtain a mechanical property of CCFRC with a different slenderness ratio of the fiber.

Abstract: The present application provides a library construction element, a kit and a library construction method compatible with double sequencing platforms. The library construction method comprises: performing library construction on target samples using primers or adaptors with a 5? phosphorylation modification to obtain a linear amplification library with a 5? phosphorylation modification, that is a linear library suitable for Illumina sequencing platform; or further cyclizing the linear amplification library with a 5? phosphorylation modification to obtain a cyclization library suitable for the MGI sequencing platform.

Abstract: The invention provides a double-end library tags composition and application thereof in MGI sequencing platform. The double-end library tags composition includes a plurality of 5?-end library tags and a plurality of 3?-end library tags, the lengths of the plurality of 5?-end library tags are all the same, the lengths of the plurality of 3?-end library tags are all the same, and in the double-end library tags composition, the occurrences of each base at the same position are also all the same.

Abstract: Disclosed are an alkali-activated geopolymer coating, and a preparation method and use thereof. The alkali-activated geopolymer coating, is prepared by raw materials including the following components: an aluminosilicate mineral, an alkali activator, and a performance additive; wherein the aluminosilicate mineral comprises fly ash, slag, and metakaolin; the performance additive comprises a polymer powder, titanium dioxide, a silicone defoamer, and a water-reducing admixture; and a mass ratio of the aluminosilicate mineral, the alkali activator, and the performance additive is in a range of 100:(60-80):(4-15).

Abstract: The present invention discloses a low-pressure aluminum casting mold and a low-pressure aluminum casting process for motor rotor. The low-pressure aluminum casting mold includes an upper blade profile assembly, a lower blade profile assembly, a rotor core (1), a dummy shaft (2) and a diverter (7), the upper blade profile assembly includes an upper backing plate (3) and an upper mold (4), the lower blade profile assembly includes a lower backing plate (5) and a lower mold (6). The low-pressure aluminum casting mold further includes a first pressing device (8) and four sets of second pressing devices (9). The low-pressure aluminum casting process includes the steps of cold lamination, heating of the rotor core, mold preparation, hot lamination and low-pressure casting.

Abstract: Provided are a pixel circuit, a driving method and a display apparatus, including: a light emitting device; a driving transistor, configured to produce a current for driving the light emitting device to emit light according to a data voltage; a voltage control circuit, coupled to the driving transistor, wherein the voltage control circuit is configured to reset the driving transistor (MO) and input the data voltage in response to a loaded signal; and a light emitting control circuit, coupled to the driving transistor and the light emitting device, wherein the light emitting control circuit is configured to provide the current produced by the driving transistor to the light emitting device; wherein a frequency of resetting the driving transistor is not less than a frequency of inputting the data voltage.

Abstract: The present disclosure relates to an optimization method and system for hybrid FRP and steel bars. The optimization method includes: determining a cross-sectional bending bearing capacity, a maximum cross-sectional bending bearing capacity, and a minimum cross-sectional bending bearing capacity according to basic material parameters and a design value of a bending moment; determining whether the cross-sectional bending bearing capacity, the maximum cross-sectional bending bearing capacity, and the minimum cross-sectional bending bearing capacity meet a first preset condition; if yes, determining a maximum steel bar area according to the basic material parameters; determining a maximum ductility of a steel bar beam; determining whether the maximum ductility and the target ductility meet a second preset condition; if yes, determining a minimum steel bar area and a maximum FRP bar area according to the maximum steel bar area; and determining an actual steel bar area and an actual FRP bar area.

Abstract: The present disclosure relates to compounds of Formula I: and the pharmaceutically acceptable salts and solvates thereof, wherein A, X, J, Y, Z, n, and B 1 are as defined as set forth in the specification. The present disclosure also relates to uses of the compounds, e.g., in treating preventing a condition or disorder responsive to the degradation of estrogen receptor protein (e.g., cancer).

Abstract: This application provides techniques comprising S1: establishing a queue for accommodating m file descriptors for creating n1 first access request data packets; S2: creating an ith file descriptor in the queue, sending an ith first access request data packet by using the ith file descriptor, and monitoring a source port recorded by the ith file descriptor; S3: at every first preset time interval t1, enabling i to automatically increase by 1, continuing to perform operation S2, and setting preset monitoring time T for each source port, where T=t1*m; and S4: ending monitoring of an (i?m)th source port and destroying a corresponding file descriptor while creating an ith file descriptor in the queue when m*j<i?m*(j+1), and stopping monitoring of other source ports in response to detecting that a first port receives a response data packet, where the first port is any source port in a monitored state.

Abstract: This application provides techniques comprising creating a main thread and at least two task threads; determining, by the main thread, a target task thread based on a data packet corresponding to a data transmission task in response to detecting the data transmission task associated with a client device, and sending the data packet to the target task thread, where the target task thread is any one of the at least two task threads; and receiving, by the target task thread, the data packet sent by the main thread, determining, based on the data packet, a first file descriptor corresponding to the client device, and communicating with the client device by using the first file descriptor to perform data transmission.

Abstract: This application provides techniques for establishing a P2P connection. The techniques comprise communicating with at least two auxiliary nodes to obtain answer messages returned by the at least two auxiliary nodes; determining, based on the answer messages, at least one public network address corresponding to an internal network address of a first client device; registering, with a cloud server, the at least one public network address corresponding to the internal network address of the first client device, and monitoring the at least one public network address corresponding to the internal network address of the first client device; and establishing a P2P connection to a second client device when detecting, in a preset duration, that the second client device returns a response data packet to a target public network address.

Abstract: This application provides techniques comprising S1: establishing a queue for accommodating m file descriptors for creating n1 first access request data packets; S2: creating an ith file descriptor in the queue, sending an ith first access request data packet by using the ith file descriptor, and monitoring a source port recorded by the ith file descriptor; S3: at every first preset time interval t1, enabling i to automatically increase by 1, continuing to perform operation S2, and setting preset monitoring time T for each source port, where T=t1*m; and S4: ending monitoring of an (i?m)th source port and destroying a corresponding file descriptor while creating an ith file descriptor in the queue when m*j<i?m*(j+1), and stopping monitoring of other source ports in response to detecting that a first port receives a response data packet, where the first port is any source port in a monitored state.