Abstract: A multi-GPU-based image rendering method includes: acquiring a target image, and detecting first rendering durations for different number of available devices to render the target image, where the available devices are GPU devices for image rendering; comparing the first rendering durations corresponding to different number of available devices, and acquiring the available devices corresponding to a minimum one of the first rendering durations as target devices; dividing the target image according to the target devices and a second rendering duration to obtain second images, where the second rendering duration is a duration required for a single target device to render the target image; rendering the second images based on rendering tasks in the target devices to obtain second image results, and combining the second image results to obtain a rendering image of the target image, where the rendering tasks are configured to render the second images.

Abstract: Disclosed are a motorcade regulation method, a device, an electronic equipment and a storage medium. A diffusion region of pheromones is constructed by taking a first vehicle main body determined from a multi-cooperative task as a center; a second pheromone set of a second vehicle main body meeting with the first vehicle main body is perceived by using the first pheromone set generated outwardly by the first vehicle main body based on the neural autocrine mechanism; when the second vehicle main body satisfies a proximity condition and an affinity of the pheromones of the first and second vehicle main bodies satisfies a regulation condition, the second vehicle main body is selected to be regulated, and upon regulation, a formation is arranged according to the movement parameters of the first and second vehicle main bodies which are then moved towards the cluster position based on the arranged formation.

Abstract: Provided is an underwater wireless optical communication system. The system includes an emitting end and a receiving end; where the emitting end includes a beam emitting module and an optical phased array, where the beam emitting module is configured to emit a communication beam obtained by modulating communication information, and the optical phased array is configured to adjust an emission direction of the communication beam; and the receiving end includes a tracking module and an information demodulation module, where the tracking module is configured to receive a target communication beam emitted after adjustment by the optical phased array and align the target communication beam, and the information demodulation module is configured to demodulate the received target communication beam to obtain the communication information.

Abstract: Disclosed are a multi-degree-of-freedom attitude adjustment camera apparatus, and a control method, device and medium, the apparatus includes: a fixed support; a camera adjusting module which includes an upper chassis, a lower chassis and three bolts, the upper chassis is fixed on the fixed support, the upper chassis is provided with three through holes with threaded structures, and the three bolts penetrate through the three through holes and are matched with the threaded structures on the through holes; first ends of the bolts penetrate through the through holes and then are connected with a first surface of the lower chassis; and a second surface of the lower chassis is provided with a connecting member for connecting a camera; three motors, wherein the motors are connected to second ends of the bolts; and an upper computer connected with the motors and the camera.

Abstract: A wireless charging-based underwater energy rescue method for an autonomous underwater vehicle (AUV) cluster fully considers the actual situation of an AUV rescue system. For example, a rescue-side AUV takes speed as a constraint in order for rapid rescue, while a demand-side AUV takes minimum energy consumption as a constraint to select an optimal charging point. In addition, optimal path planning is performed in an environment with a dynamic disturbance such as a fish school. The wireless charging-based underwater energy rescue method combines path planning algorithms, namely rapidly-exploring random trees (RRT) and dynamic window approach (DWA), to achieve rapid and effective underwater energy rescue of AUVs.

Abstract: A magnetic induction molecular imaging method and a magnetic induction molecular imaging system for biological tissue detection, comprises a detection bed, a magnetic nanoparticle device, a magnetic field generating device, a signal receiving and transmitting device, a magnetic field signal acquisition device and computer equipment, wherein the magnetic nanoparticle device is used for sending magnetic nanoparticles to a to-be-detected area of the detection bed; the magnetic field generating device is used for generating and transmitting electromagnetic waves to the signal receiving and transmitting device; the signal receiving and transmitting device is used for receiving the electromagnetic waves transmitted by the magnetic field generating device; the magnetic field signal acquisition device is used for acquiring scattered electric field information and scattered magnetic field information, based on the magnetic nanoparticles, of the to-be-detected area detected by each sensor on sensor arrays.

Abstract: Provided is a visible light communication system. The system includes a modulation and light emission module configured to emit a communication light ray obtained by modulating information to be communicated; and a tracking and light sensing module configured to receive and demodulate the communication light ray to obtain the information to be communicated and further configured to align the tracking and light sensing module with the communication light ray according to the angle between the tracking and light sensing module and the communication light ray.

Abstract: Disclosed are an imaging system and an imaging method thereof. The system includes a light source, a light source modulator, an objective lens, a sensor array, a sensor read-write module and an imaging display module connected with the sensor read-write module. The light source modulator is configured for modulating the light source to a preset frequency; the objective lens is configured for imaging an optical signal reflected by a surface of a target object on the sensor array; the sensor array is configured for converting the received optical signal into an analog alternating current electrical signal; the sensor read-write module is configured for amplifying the analog alternating current electrical signal and extracting a target signal, converting the target signal into a digital signal and storing the digital signal; and the imaging display module is configured for restoring and displaying an image of the target object according to the digital signal.

Abstract: A quantitative pooled-sample testing method and apparatus for chemical test items of consumer products are provided. The test method includes: calculating a maximum number of samples that can be pooled according to parameters such as regulatory limit requirements, measurement uncertainty, the number of pooled samples, a sample pooling ratio, and the like; establishing a searchable table according to a relationship between a qualified rate, the number of samples that can be pooled, and reduced workload; for various items to be tested, directly querying the table to acquire reduced workloads corresponding to different numbers of samples that can be pooled; and when the number of samples that can be pooled does not exceed a maximum value and corresponds to the most greatly reduced workload, determining that number of samples that can be pooled as an optimum number of samples that can be pooled, and performing pooled-sample testing.

Abstract: Provided is an elliptical multi-mesa laser structure, including a substrate layer, an N-DBR, a functional layer and a P-DBR sequentially arranged from bottom to top. The substrate layer is fixedly connected with an N contact layer. The N-DBR is fixedly connected to a top of the substrate layer, and the N contact layer is arranged around the N-DBR. A space layer is inserted in the N-DBR. The functional layer is fixedly connected to a top of the N-DBR. The P-DBR is fixedly connected to a top of the functional layer, and a top of the P-DBR is fixedly connected with a P contact layer. Another space layer is inserted into the P-DBR.

Abstract: A ground simulation device and method for an on-orbit manipulation of a space manipulator is provided. The ground simulation device includes: a dual-arm robot, configured to simulate the space manipulator operating a target object; a suspension device, including a fixed post and passive rods, where the passive rods are movably connected with a top end of the fixed post, and the target object is suspended to the passive rods; and a simulation platform, configured to fix the dual-arm robot and the suspension device thereon. The ground simulation device provides the passive rods on the suspension device and suspends the target object to the passive rods, thus overcoming the gravity of the target object. In addition, the passive rods can drive the target object to move under an influence of an external force, achieving a similar suspension effect to that in space, and providing a desired, safe, and reliable implementation effect.

Abstract: The present disclosure relates to the field of swarm intelligence and provides a multi-intelligent-agent cooperated transportation method and system as well as a computer readable storage medium.

Abstract: A super-resolution X-ray shadowgraph system includes an X-ray source, a sample stage, an X-ray detector and an image reconstruction device, which are arranged in sequence. Geometric centers of the X-ray source, the sample stage and the X-ray detector are collinear. The geometric center of the sample stage is provided with a through hole for placing a testing sample, the X-ray source is used for providing X-rays, and the X-rays penetrate the sample stage to form an image on the X-ray detector. The image reconstruction device is used for acquiring the image and performing an image reconstruction on the image to obtain a new image. The shadowgraph system and the imaging method therefor can overcome a deficiency of a lower resolution of the image limited by a size of the source, thereafter obtaining a clear shadowgraph with a high resolution.

Abstract: A ground simulation device and method for an on-orbit manipulation of a space manipulator is provided. The ground simulation device includes: a dual-arm robot, configured to simulate the space manipulator operating a target object; a suspension device, including a fixed post and passive rods, where the passive rods are movably connected with a top end of the fixed post, and the target object is suspended to the passive rods; and a simulation platform, configured to fix the dual-arm robot and the suspension device thereon. The ground simulation device provides the passive rods on the suspension device and suspends the target object to the passive rods, thus overcoming the gravity of the target object. In addition, the passive rods can drive the target object to move under an influence of an external force, achieving a similar suspension effect to that in space, and providing a desired, safe, and reliable implementation effect.

Abstract: The present application provides a method and system for reconstructing transparent objects based on multi-wavelength light tracing, the method comprises calculating and obtaining a reverse light equation of one pixel point of a camera by using intrinsic parameters of camera calibration; placing a transparent object on a display screen, emitting, by a backlight lighting source, lights of two or more different wavelengths to the display screen, and recording, by the pixel point, position information of the lights of two or more different wavelengths on the display screen, respectively; translating the display screen along a direction perpendicular thereto, and calculating a rectilinear equation of light from a lower surface of the transparent object to the display screen of the lights of different wavelengths recorded by the pixel point.

Abstract: An ultrasonic extraction performance checking device and method for an ultrasonic extractor for detecting and analyzing a chemical composition of a consumer product. The ultrasonic extraction performance checking device includes a hanging frame which is hung inside the ultrasonic extractor and matched with the ultrasonic extractor, and a hanging frame plane checking device which is detachably and vertically or horizontally placed in the hanging frame and clamped with an alloy foil. The alloy foil is surrounded by a tensioning fixture. The tensioning fixture causes the alloy foil to generate a surface tension of 5 to 15 N and to be tightened and fixed to the bottom surface of the hanging frame plane checking device.

Abstract: The present disclosure provides a method and apparatus for simulating a physiological dynamic blood flow, a computer device and a storage medium. The method for simulating a physiological dynamic blood flow includes the following steps: acquiring related parameters of a cardio-aortic system in a complete cardiac cycle under a normal physiological state, and acquiring morphological and motion imaging data of the cardio-aortic system in the complete cardiac cycle; constructing a circulation dynamic loading function for cyclic dynamic contraction of a left ventricle; constructing a function between a left ventricular (LV) dynamic blood pressure and an LV dynamic volume; constructing a dynamic arterial blood flow volume function; constructing a cyclic opening and closing activation function of an aortic valve; and constructing a physiological dynamic blood flow model, and simulating the physiological dynamic blood flow according to the physiological dynamic blood flow model.