Abstract: The present invention discloses a CEEMDAN-based method for screening and monitoring soil moisture stress in farmland, characterised by the steps: preprocessing of remote sensing images, construction of NDVI long time series, CEEMDAN decomposition, calculation of statistical descriptors, screening of soil moisture stress sequences, ground data measurement, construction of soil moisture stress characteristic curves, fitting of soil moisture stress response characteristic curves and predicting the content of soil moisture stress. The invention adopts CEEMDAN decomposition, which solves the problems of noise residue and low reconstruction accuracy in the previous methods, and the high reconstruction accuracy of decomposed component data is more conducive to capturing the transient effects of soil moisture stress, and realizes the screening and extraction of soil moisture stress by combining with the ground measured data.

Abstract: An information management method, a device, a system and a medium. The information management method applied to a first terminal, including: sending an information acquisition request to a server, so that the server responds to the information acquisition request and sends visitor information to the first terminal; receiving the visitor information sent by the server; generating card information according to the visitor information; and sending the card information to an electronic card, so that the electronic card displays the card information.

Abstract: The invention provides a method of determining an optimal submarine cable path between a starting point and an end point in a target region of Earth's surface. The method includes building a triangulated two-dimensional (2D) manifold model of the target region, creating an objective function based on risk and cost, and minimizing the function to obtain a set of Pareto optimal solutions for deriving a Pareto front. Furthermore, the Pareto front is further optimized by taking into account terrain slope, marine protected areas, and volcanic safety constraints. Finally, an optimal submarine cable path is selected based on the optimized Pareto front and a given condition.

Abstract: A computer-implemented method for determining a path arrangement of an infrastructure link network with a trunk-and-branch topology. The method includes: modelling a geographic terrain including three or more geographic locations that are connectable with each other via an infrastructure link network; determining a cost function associated with a cost for constructing the infrastructure link network that connects the three or more geographic locations; and determining a path arrangement of the infrastructure link network based on the modelled geographic terrain and by optimizing the cost function taking into account one or more constraints. The path arrangement of the infrastructure link network has a trunk-and-branch topology and includes: three or more infrastructure links that connect the three or more geographic locations, and one or more connection points each arranged between two or more of the infrastructure links.

Abstract: Disclosed are an electronic signboard and a wall hanging device. The electronic signboard includes a display device and a wall hanging device. The display device is provided with a first fitting portion, and the wall hanging device is provided with a second fitting portion detachably connected to the first fitting portion. The wall hanging device is further provided a fixing surface via which the wall hanging device is fixed to a mounting base.

Abstract: Embodiments of the present disclosure provide an electronic paper, a display device, and a driving method. A plurality of first half-cup structures each includes charged dye particles with a single electric property are provided on the first driving backplane, a plurality of second half-cup structures each includes charged dye particles with a single electric property are provided on the second driving backplane; one first half-cup structure and the opposite second half-cup structures constitute a micro-cup structure, a electric property of the charged dye particles in the first half-cup structure is opposite to that in the second half-cup structure in the same micro-cup structure; a cross-sectional area of the respective second half-cup structures gradually decreases in a direction pointing from the second driving backplane to the first driving backplane; and a cross-sectional area of the respective first half-cup structures gradually decreases in an opposite direction.

Abstract: Embodiments of the present disclosure provide an electronic paper, a display device, and a driving method. A plurality of first half-cup structures each includes charged dye particles with a single electric property are provided on the first driving backplane, a plurality of second half-cup structures each includes charged dye particles with a single electric property are provided on the second driving backplane; one first half-cup structure and the opposite second half-cup structures constitute a micro-cup structure, a electric property of the charged dye particles in the first half-cup structure is opposite to that in the second half-cup structure in the same micro-cup structure; a cross-sectional area of the respective second half-cup structures gradually decreases in a direction pointing from the second driving backplane to the first driving backplane; and a cross-sectional area of the respective first half-cup structures gradually decreases in an opposite direction.

Abstract: The present invention provides a cable network planning method comprising: modelling the prespecified topology as a Steiner tree including a plurality of terminal nodes representing a plurality of cable landing stations (CLSs) to be installed respectively in a plurality of destination regions connected by the cable network, a plurality of Steiner nodes presenting a plurality of branching units (BUs) to be installed in the cable network, and a plurality of edges connecting the terminal nodes and Steiner nodes; constructing a directed acyclic graph (DAG); finding a Steiner minimal tree (SMT) by applying a DAG-Least-Cost-System algorithm; returning coordinates of Steiner nodes, terminal nodes of the SMT as locations of the BUs and the CLSs. The provided method enables inclusion of costs of the Steiner nodes by taking account of Steiner nodes with degree in excess of three such that more flexible BU branching structures and CLS locations alternatives can be considered.

Abstract: Disclosed are an electronic signboard and a wall hanging device. The electronic signboard includes a display device and a wall hanging device. The display device is provided with a first fitting portion, and the wall hanging device is provided with a second fitting portion detachably connected to the first fitting portion. The wall hanging device is further provided a fixing surface via which the wall hanging device is fixed to a mounting base.

Abstract: A method of driving an electronic paper display apparatus includes: providing a preprocessing signal in the first pulse signal to the first electrode in the display stage of the first image display stage, so that the first particles and the third particles are mixed, and the first particles and the third particles are closer to a display side of the display apparatus than the second particles; and providing a first sub-pulse signal in the first pulse signal to the first electrode in the display stage of the first image display stage after providing the preprocessing signal, so that the third particles are closer to the display side of the display apparatus than the first particles and the second particles and the microcup displays the third color.

Abstract: A microphone is provided. The microphone includes a shell with an accommodating cavity, as well as a micro-electro-mechanical system chip and a control circuit chip accommodated in the accommodating cavity, where the shell is provided with a sound hole penetrating through a thickness of the shell and communicated with the accommodating cavity; the microphone further includes an electric anti-dust device at least completely covering the sound hole, the electric anti-dust device is electrically connected with the control circuit chip, and can open the sound hole when receiving a power-on signal of the control circuit chip and close the sound hole when not receiving the power-on signal of the control circuit chip, thus effectively improving a pollution problem of the microphone during such process as transportation, assembly, SMT or unused state that dust is fed most easily without affecting an acoustic performance.

Abstract: Disclosed are an array substrate, a method for driving the same, a display module, and a display device. The array substrate includes a plurality of data lines, a plurality of gate lines, a plurality of switch signal lines, and a plurality of pixels, wherein each of the pixels includes a switch circuit, a drive circuit, and a light-emitting element. Each of the switch signal lines may be connected to the switch circuits of the plurality of pixels disposed in at least one region, and each of the gate lines is connected to a plurality of rows of pixels disposed in different regions. Reliable scanning of the pixels row by row may be ensured by flexible control of signals provided by the signal lines. The array substrate needs to be disposed with fewer gate lines, such that the cost is reduced.

Abstract: Disclosed are an array substrate and a method for driving the same, a display module, and a display device. The array substrate includes a plurality of data lines, a plurality of first gate lines, a plurality of second gate lines, a plurality of pixels and a plurality of switch circuit. Each of the first gate lines is connected to the plurality of switch circuit disposed in at least one region, and each of the switch circuit is connected to a row of pixels in the region where the switch circuit is disposed, and each of the second gate lines is connected to a plurality of rows of pixels disposed in different regions.

Abstract: A microphone is provided. The microphone includes a shell with an accommodating cavity, as well as a micro-electro-mechanical system chip and a control circuit chip accommodated in the accommodating cavity, where the shell is provided with a sound hole penetrating through a thickness of the shell and communicated with the accommodating cavity; the microphone further includes an electric anti-dust device at least completely covering the sound hole, the electric anti-dust device is electrically connected with the control circuit chip, and can open the sound hole when receiving a power-on signal of the control circuit chip and close the sound hole when not receiving the power-on signal of the control circuit chip, thus effectively improving a pollution problem of the microphone during such process as transportation, assembly, SMT or unused state that dust is fed most easily without affecting an acoustic performance.

Abstract: A method of driving an electronic paper display apparatus includes: providing a preprocessing signal in the first pulse signal to the first electrode in the display stage of the first image display stage, so that the first particles and the third particles are mixed, and the first particles and the third particles are closer to a display side of the display apparatus than the second particles; and providing a first sub-pulse signal in the first pulse signal to the first electrode in the display stage of the first image display stage after providing the preprocessing signal, so that the third particles are closer to the display side of the display apparatus than the first particles and the second particles and the microcup displays the third color.

Abstract: A bone conduction MEMS microphone includes a MEMS chip, a mass, a housing, and a circuit board. The MEMS chip and the housing are mounted on the same side of the circuit board. The housing and the circuit board cooperatively form a sealed chamber and the MEMS chip is accommodated in the chamber. The MEMS chip includes a back plate and a diaphragm, and the mass is fixed to the diaphragm. Since the chamber is sealed, the bone conduction MEMS microphone has no sound hole and airborne sound is therefore avoided. The mass is fixed to the diaphragm of the MEMS chip. Vibration signals of the sound transmitted through bones make the mass and the diaphragm vibrate to thereby realize conversion of sound to mechanical vibration of different frequencies, achieve clear sound restoration in a noisy environment, avoid interference from airborne noise, and ensure sound with high quality.

Abstract: The present invention relates to a novel compound, 3-amino-2-hydroxy-4-phenylbutanoyl-valyl-isoleucine with structure showed below. The compound is prepared from fermentation culture Streptomyces parvus CGMCC No. 4027 and is active as inhibitor of aminopeptidase. It can be used for preparation of aminopeptidase inhibitor.