Abstract: This disclosure relates to a picture generation method and device, a storage medium, and an electronic device. The method includes: obtaining a source portrait picture displaying a target object; cropping the source portrait picture to obtain a face region picture corresponding to a face of the target object excluding a hair portion; inputting the face region picture to a picture generation model to obtain an output result of the picture generation model, the picture generation model being obtained after machine learning training through an adversarial neural network model by using a plurality of sample pictures; and generating a target portrait picture by using the output result of the picture generation model, the target portrait picture displaying a target hairstyle matching the face of the target object. This disclosure resolves the technical problem that pictures generated in related art cannot achieve an effect expected by a user and other technical problems.

Abstract: A pump machine unit optimized operation regulation system is provided, and includes a physical body, a digital twin, a digital twin body of the physical body and a digital space. The digital space drives the digital twin to realize data mirroring, mapping reconstruction, information interactive feedback and simulation of a pump machine unit optimized regulation system in virtual space and a pump machine unit optimized regulation system in physical space. The disclosure constructs the virtual twin body of the physical body of the pump system based on the digital twin to realize the data mirror and information interaction between the physical body and the virtual twin body, and physical object twin, operation process twin and control performance twin of the physical entity and digital twin body. Running state monitoring, optimized regulation, simulation and health prediction of the pump machine unit can be realized.

Abstract: A pump machine unit optimized operation regulation system is provided, and includes a physical body, a digital twin, a digital twin body of the physical body and a digital space. The digital space drives the digital twin to realize data mirroring, mapping reconstruction, information interactive feedback and simulation of a pump machine unit optimized regulation system in virtual space and a pump machine unit optimized regulation system in physical space. The disclosure constructs the virtual twin body of the physical body of the pump system based on the digital twin to realize the data mirror and information interaction between the physical body and the virtual twin body, and physical object twin, operation process twin and control performance twin of the physical entity and digital twin body. Running state monitoring, optimized regulation, simulation and health prediction of the pump machine unit can be realized.

Abstract: The present invention relates to a flexible polymer-based microtube having an inner diameter of about 4 ?m to about 1000 ?m and a variable outer diameter, wherein the cross-sectional shape of the microtube can be, for instance, circular, rectangular, square, triangular, elliptical, star or irregular. The present invention also relates to a method of making the flexible microtube and devices incorporating the flexible microtube.

Abstract: This disclosure relates to a picture generation method and device, a storage medium, and an electronic device. The method includes: obtaining a source portrait picture displaying a target object; cropping the source portrait picture to obtain a face region picture corresponding to a face of the target object excluding a hair portion; inputting the face region picture to a picture generation model to obtain an output result of the picture generation model, the picture generation model being obtained after machine learning training through an adversarial neural network model by using a plurality of sample pictures; and generating a target portrait picture by using the output result of the picture generation model, the target portrait picture displaying a target hairstyle matching the face of the target object. This disclosure resolves the technical problem that pictures generated in related art cannot achieve an effect expected by a user and other technical problems.

Abstract: The present invention relates to a flexible polymer-based microtube having an inner diameter of about 4 ?m to about 1000 ?m and a variable outer diameter, wherein the cross-sectional shape of the microtube can be, for instance, circular, rectangular, square, triangular, elliptical, star or irregular. The present invention also relates to a method of making the flexible microtube and devices incorporating the flexible microtube.

Abstract: An ultrasonic transducer is disclosed, which includes one or a plurality of ultrasonic emitting units. Wavefronts of the ultrasonic waves emitted by the one or the plurality of ultrasonic emitting units are sphere surfaces with uniform radius, and the one or the plurality of ultrasonic emitting units can reflect ultrasound. The one ultrasonic emitting unit is configured to form a spherical resonant cavity, or the plurality of ultrasonic emitting units are configured to form a spherical resonant cavity collectively. An internal cavity of the spherical resonant cavity has a spherical shell shape or a cross-sectional spherical shell shape with a spherical center therein. The ultrasonic waves emitted by the one or the plurality of ultrasonic emitting units are focused on an area in which the spherical center of the spherical resonant cavity is located.

Abstract: An ultrasonic transducer is disclosed, which includes one or a plurality of ultrasonic emitting units. Wavefronts of the ultrasonic waves emitted by the one or the plurality of ultrasonic emitting units are sphere surfaces with uniform radius, and the one or the plurality of ultrasonic emitting units can reflect ultrasound. The one ultrasonic emitting unit is configured to form a spherical resonant cavity, or the plurality of ultrasonic emitting units are configured to form a spherical resonant cavity collectively. An internal cavity of the spherical resonant cavity has a spherical shell shape or a cross-sectional spherical shell shape with a spherical center therein. The ultrasonic waves emitted by the one or the plurality of ultrasonic emitting units are focused on an area in which the spherical center of the spherical resonant cavity is located.