Abstract: A battery pack, an energy storage apparatus, and an energy storage system are provided. The energy storage apparatus includes a plurality of stacked battery packs, each battery pack including a plurality of battery cells. In two contact surfaces of two adjacent battery packs, a protective part and a first connector are disposed on one of the contact surfaces in a protruding manner, and a groove and a second connector are disposed on the other of the contact surfaces. The second connector is located in the groove, the protective part is connected to the groove, and the first connector is connected to the second connector. The energy storage apparatus can implement accurate alignment between the battery packs, thereby greatly reducing an assembly procedure and an assembly time for mounting the energy storage apparatus and improving assembly efficiency of the energy storage apparatus.

Abstract: A portable solar photovoltaic array power generator set container and a usage method thereof are provided. The portable solar photovoltaic array power generator set container includes a foldable solar photovoltaic power generation unit, a rail component for the foldable solar photovoltaic power generation unit to unfold and retract, electrical equipment and a container. The foldable solar photovoltaic power generation unit includes multiple frames, multiple solar photovoltaic components, a hinge component and a movable component. The foldable solar photovoltaic power generation unit further includes a position-limiting component for limiting an unfolding angle of each set of frames.

Abstract: A quick electrical-connecting structure for a high-voltage high-frequency pulse environment relates to the technical field of high-voltage high-frequency electrical engineering. The quick electrical-connecting structure includes a plug, a socket, and a cable, where the cable is connected to the socket through the plug; the plug and the socket internally enclose an annular cavity surrounding the cable; and a protective fluid is filled in the annular cavity. By charging a protective fluid to the annular cavity in the plug and the socket, a high-intensity insulating fluid protective layer is maintained around a connecting position of the cable in the annular cavity. Therefore, the quick electrical-connecting structure lowers an internal humidity, and can effectively reduce corona discharge and creepage.

Abstract: Disclosed systems and methods for network configuration management in a cloud platform provisioned with a cloud platform manager (CPM) and a plurality of host nodes managed by the CPM include establishing an original configuration connection (OCC) with a host node to trigger a network configuration task for the host node. Upon receiving a task identifier (ID) assigned to a network configuration task, a new configuration connection (NCC) status query may be sent to the host node to monitor a status of the task. Responsive to detecting a status of completed for the network configuration task, a confirmation is sent to the host node. If acknowledgement of the confirmation is received, a notification indicating configuration of the new network configuration is recorded.

Abstract: A display panel includes a substrate, a driving circuit layer, a pixel definition layer, and a plurality of stacked sub-pixels. The driving circuit layer is provided on a side of the substrate, and the pixel definition layer is provided on the side of the driving circuit layer away from the substrate. The plurality of stacked sub-pixels are stacked on the side of the driving circuit layer away from the substrate in the vertical direction and are located within the pixel definition layer. The orthographic projections of at least some of the stacked sub-pixels on the driving circuit layer overlap. The stacked sub-pixels include an anode, a light-emitting part, and a cathode that are sequentially arranged and connected in the horizontal direction.

Abstract: The present disclosure describes an image system comprising a hybrid image sensor and control circuitry. The hybrid sensor includes an event-driven sensing array with multiple event vision sensor (EVS) pixels and a pixel array with multiple CMOS image sensor (CIS) pixels. EVS pixels capture contrast data within a first time interval, while CIS pixels capture light intensity data during second and third time intervals. The control circuitry uses the EVS data to deblur the first CIS data, generates fusion masks and weights based on the EVS and CIS data, and fuses the deblurred and subsequent CIS data using these masks and weights. The second time interval occurs before the third time interval.

Abstract: The present disclosure provides a camera system and an event-assisted image processing method. The camera system includes an image sensor, an event-based sensor, and a processing unit. The image sensor is configured to capture visual images of a targeted scene to obtain image sensing frames with a first frequency. The event-based sensor is configured to capture event data of the targeted scene to obtain event frames with a second frequency higher than the first frequency. The processing unit is configured to: receiving the image sensing frames within a predetermined time period; accumulating the event frames within the predetermined time period; generating a temporal-spatial mask indicating interested areas for the event frames; determining geometric features in the temporal-spatial masks; synchronizing the image sensing frames and the event frames at timestamps within the predetermined time period; and fusing the temporal-spatial mask with the image sensing frames to obtain a masked visual image.

Abstract: Disclosed are a monocular high-resolution multispectral imaging system and a control method, relating to the technical field of vegetation index monitoring. The imaging system includes: an image sensor, configured to convert an optical signal of each waveband into a digital signal; a distortionless imaging lens, configured to focus an original image optical signal of a target object on the image sensor to generate a red-green-blue (RGB) original image; a multi-waveband combined narrow-band optical filter, placed between the distortionless imaging lens and the image sensor and configured to constrain a spectral range of an actual receivable optical signal of the image sensor; an incident light calibration module, configured to acquire incident irradiance of ambient light; and a parallel data processing unit, connected to the image sensor and configured to analyze the digital signal in combination with the incident irradiance and generate a reflectivity image for vegetation analysis.

Abstract: There is set forth herein a light energy exciter that can include one or more light sources. A light energy exciter can emit excitation light directed toward a detector surface that can support biological or chemical samples.

Abstract: A pixel drive circuit and a display panel are provided in embodiments of the present disclosure. Multiple rows of pixel units are arranged in a column direction. Multiple scan lines are spaced apart from one another and extend in a row direction, where each scan line is electrically connected to one row of pixel units. The number of scan drive lines is less than the number of scan lines. A first connection end of each switch unit is electrically connected to at least one scan line, a second connection end of each switch unit is electrically connected to one scan drive line, and at least two scan lines are electrically connected to a same scan drive line through different switch units.

Abstract: Disclosed are a monocular high-resolution multispectral imaging system and a control method, relating to the technical field of vegetation index monitoring. The imaging system includes: an image sensor, configured to convert an optical signal of each waveband into a digital signal; a distortionless imaging lens, configured to focus an original image optical signal of a target object on the image sensor to generate a red-green-blue (RGB) original image; a multi-waveband combined narrow-band optical filter, placed between the distortionless imaging lens and the image sensor and configured to constrain a spectral range of an actual receivable optical signal of the image sensor; an incident light calibration module, configured to acquire incident irradiance of ambient light; and a parallel data processing unit, connected to the image sensor and configured to analyze the digital signal in combination with the incident irradiance and generate a reflectivity image for vegetation analysis.

Abstract: The present invention discloses a POSS-based hybrid supercritical CO2 thickener and a preparation method thereof, and relates to the technical field of oil and gas field development. The preparation method of the thickener comprises the following steps: reacting tetramethyl tetravinylcyclotetrasiloxane, trimethylolpropane trimethacrylate, perfluoroacrylate and POSS containing one double bond in a molar ratio of 1-5:1-2:1-2:0.005-0.01 under the action of a catalyst to obtain the thickener. The preparation method of the POSS-based hybrid supercritical CO2 thickener of the present invention is a bulk reaction, does not require the addition of a solvent, and does not pollute the human body and the environment in the production process.

Abstract: The present invention discloses a supercritical CO2 thickener for shale gas reservoir based on hollow mesoporous silica nanoparticles and a preparation method thereof, and relates to the technical field of oil and gas field development. The preparation method of the thickener includes: reacting a monomer consisting of fluoroacrylate, styrene and vinyl acetate in a molar ratio of 3-5:1-2:1-2 with 2%-5% of a total weight of hollow mesoporous silica nanoparticles with carbon-carbon double bonds under the action of an initiator to obtain the thickener. The preparation method of the present invention does not involve the addition of organic solvents during the reaction process and thus does not cause harm to the human body. The thickener of the present invention has good CO2 viscosity-increasing effect and good sand carrying performance, and can effectively improve the fracturing effect.

Abstract: The present disclosure provides a camera system and an event-assisted image processing method. The camera system includes an image sensor, an event-based sensor, and a processing unit. The image sensor is configured to capture visual images of a targeted scene to obtain image sensing frames with a first frequency. The event-based sensor is configured to capture event data of the targeted scene to obtain event frames with a second frequency higher than the first frequency. The processing unit is configured to: receiving the image sensing frames within a predetermined time period; accumulating the event frames within the predetermined time period; generating a temporal-spatial mask indicating interested areas for the event frames; determining geometric features in the temporal-spatial masks; synchronizing the image sensing frames and the event frames at timestamps within the predetermined time period; and fusing the temporal-spatial mask with the image sensing frames to obtain a masked visual image.

Abstract: An intelligent robot for long-distance detection in a drainage deep tunnel includes a tunnel pipe, a cleaning unit and a pushing unit. The cleaning unit includes a conduction assembly for conducting a blocked part of the tunnel pipe, a cleaning assembly located on one side of the conduction assembly and used for cleaning the conducted tunnel pipe, and a drive assembly arranged on one side of the cleaning assembly and used for synchronously driving the cleaning assembly and the conduction assembly to rotate; and the pushing unit is arranged on one side of the cleaning unit, and used for pushing the cleaning unit to move forwards along an interior of the tunnel pipe. When a traction rod moves from the middle to the corner of a ring slot, a regulating spring pushes an extending and retracting shaft to move outwards along second guide cylinders.

Abstract: Hybrid image sensors with on-chip image deblur (and associated systems, devices, and methods) are disclosed herein. In one embodiment, an image sensor includes (a) a plurality of CMOS image sensor (CIS) pixels configured to capture CIS data corresponding intensity of light incident on CIS pixels of the plurality of CIS pixels, (b) an event vision sensor (EVS) pixel configured to capture EVS data corresponding to events detected in light incident on the EVS pixel, and (c) a deblur circuit configured to generate deblurred image data based on the CIS data and an accumulation of events in the EVS data. The deblur circuit can be configured to compute the accumulation of events, such as using an event-based double integral model.

Abstract: Provided are a device (4) and a method for online measuring a spectrum for a laser device. The device (4) for online measuring a spectrum for a laser device includes: a first optical path assembly (G1) and a second optical path assembly (G2), and the second optical path assembly (G2) and the first optical path assembly (G1) constitute a measurement optical path. The second optical path assembly (G2) includes: an FP etalon (15) and a grating (18). The homogenized laser beam passes through the FP etalon (15) to generate an interference fringe. The grating (18) is arranged after the FP etalon (15), or is arranged before the FP etalon (15) in the measurement optical path, and is configured to disperse the laser beam passing through the FP etalon (15).

Abstract: A process for producing propylene involves dehydration of isopropanol. The dehydration process includes a step of subjecting a starting material containing isopropanol to a dehydration reaction in the presence of a dehydration catalyst comprising alumina to produce a product containing propylene. The starting material has a water content of 0.1 to 10.0 wt % (relative to 100 wt % of the total mass of the starting material), and the product has a total content of C2 unsaturated impurities and C3-C4 unsaturated impurities of 80 ppm or less (relative to 100 wt % of the total mass of the product).

Abstract: A control method for stabilizing excimer laser pulse energy includes: obtaining a measured energy value of the n-th pulse in a pulse sequence; calculating the difference between the measured energy value and the preset energy value; taking the z-th pulse of the sequence as a demarcation point, when n is a positive integer less than z, the discharge voltage value of the next pulse is calculated according to a first mathematical model, and when n is an integer greater than z?1, the discharge voltage value of the next pulse is calculated according to a second mathematical model; and the next pulse is generated according to the discharge voltage value. A control system based on the control method includes: a high-voltage discharge module, a laser cavity, a laser parameter measurement module, and an energy stability controller.

Abstract: A portable solar photovoltaic array power generator set container and a usage method thereof are provided. The portable solar photovoltaic array power generator set container includes a foldable solar photovoltaic power generation unit, a rail component for the foldable solar photovoltaic power generation unit to unfold and retract, electrical equipment and a container. The foldable solar photovoltaic power generation unit includes multiple frames, multiple solar photovoltaic components, a hinge component and a movable component. The foldable solar photovoltaic power generation unit further includes a position-limiting component for limiting an unfolding angle of each set of frames.