Abstract: A lawn mower control method and device, a lawn mower, and a storage medium. The method comprises: detecting operating data and sensing data of a plurality of operating sensors provided on a lawn mower, wherein the plurality of operating sensors comprise at least two different types of sensors; fusing the sensing data of the plurality of operating sensors to obtain environment data around the lawn mower; determining, when it is detected that a fault occurs in any of the operating sensors, a fault type of a faulty sensor according to the operating data of the faulty sensor and the environment data around the lawn mower; and controlling, if the fault type of the faulty sensor is a first fault type, the faulty sensor to stop operating, and a backup sensor corresponding to the faulty sensor to start operating.

Abstract: A wear-resistant super-hydrophobic composite material and a preparation method therefor are disclosed. The wear-resistant super-hydrophobic composite material includes a substrate and a wear-resistant super-hydrophobic composite material coating layer on the surface of the substrate; the wear-resistant super-hydrophobic composite material coating layer is obtained by curing a precursor for the super-hydrophobic composite material coating layer; the precursor for the super-hydrophobic composite material coating layer includes a gel and an ACNTB-SiO2-coupling agent layer on the surface of the gel; the gel includes an epoxy resin and amino-terminated hyperbranched polysiloxane, or includes an epoxy resin, amino-terminated hyperbranched polysiloxane and an additive; and the additive is an ACNTB-SiO2-coupling agent and/or diglycidyl-ether-terminated polydimethylsiloxane. The wear-resistant super-hydrophobic composite material has a water contact angle higher than 160° and more than 250 rubbing cycles.

Abstract: A biomimetic turtle includes a trunk, a head movably connected with a front end of the trunk in the front-rear direction, two front limbs disposed on a front section of the trunk and each rotatable relative to the trunk to sway in an up-down direction, and a driving module to drive the head and the front limbs. Each front limb has a curve-shaped rigid portion with a recess, and a deformable flipper portion engaged in the recess and extending rearwardly. With the deformable flipper portion deformed and bent during swaying of the front limbs, a forward propelling force is generated to propel the biomimetic turtle forwardly. The head is operably movable to vary the center of gravity of 10 the biomimetic turtle 100 in the water, and thus the front portion of the biomimetic turtle is inclined upwardly or downwardly to facilitate ascending or descending of the biomimetic turtle.

Abstract: A remoldable bismaleimide resin and application thereof. The preparation method includes blending 2-allylphenyl glycidyl ether and terephthalic acid in acetonitrile, carrying out an esterification reaction under the condition of quaternary ammonium salt as a catalyst to obtain bis(3-(2-allylphenoxy)-2-hydroxypropyl) terephthalate containing a reversible dynamic group; then uniformly mixing bis(3-(2-allylphenoxy)-2-hydroxypropyl) terephthalate and bismaleimide, curing to obtain the re-moldable bismaleimide resin. The prepared re-moldable bismaleimide resin not only has excellent heat resistance and mechanical properties, but also can be remolded under hot pressing conditions. The preparation method of the re-moldable bismaleimide resin has the advantages of wide raw material sources and simple process, and has a wide application prospect in the fields of aerospace, transportation, electronic information, new energy, insulated electrical industry and the like.

Abstract: A lawn mower control method and device, a lawn mower, and a storage medium. The method comprises: detecting operating data and sensing data of a plurality of operating sensors provided on a lawn mower, wherein the plurality of operating sensors comprise at least two different types of sensors (S101); fusing the sensing data of the plurality of operating sensors to obtain environment data around the lawn mower (S102); determining, when it is detected that a fault occurs in any of the operating sensors, a fault type of a faulty sensor according to the operating data of the faulty sensor and the environment data around the lawn mower, wherein the faulty sensor is an operating sensor in which a fault occurs (S103); and controlling, if the fault type of the faulty sensor is a first fault type, the faulty sensor to stop operating, and a backup sensor corresponding to the faulty sensor to start operating (S104).

Abstract: A charging device adapted for charging electric vehicles is provided. The charging device includes a charging station, an adapter, and a charging plug. The charging station includes an insertion portion. The adapter has a first side and a second side opposite to each other, the first side is detachably connected to the charging station, and the adapter includes a linkage assembly. The charging plug is detachably connected to the second side of the adapter. In a first state, the charging plug is connected to the second side and the first side is connected to the charging station. In a second state, the charging plug is connected to the second side and the first side is detached from the charging station, and the linkage assembly is engaged to the charging plug, so that the charging plug and the adapter are locked with each other.

Abstract: A method for recovering a protein from a surimi-rinsing liquid based on a low-temperature plasma technology is provided. The method includes: collecting fish flesh, and chopping the fish flesh to obtain surimi; adding the surimi to water, mixing for rinsing, centrifuging to collect a supernatant, which is the surimi-rinsing liquid; adjusting an input power of a plasma device to 300 W to 800 W, placing a spray gun of the plasma device below a liquid level of the surimi-rinsing liquid, turning on a power supply, and exciting plasma with air as a gas source, such that the plasma acts evenly on the surimi-rinsing liquid for 2 min to 6 min; and allowing the low-temperature plasma treated surimi-rinsing liquid to stand in an environment with a temperature of 10° C. or lower, centrifuging to collect a precipitate, such that the recovery of the protein from the surimi-rinsing liquid is completed.

Abstract: An electrical connector assembly including an elastic waterproof member and at least one electrical connector provided to the elastic waterproof member, the electrical connector includes: a contact member partially exposed to a first side of the elastic waterproof member along a first direction, the contact member is integrated with the elastic waterproof member; a supporting element provided to a second side of the elastic waterproof member along the first direction, the supporting element and the contact member are fixed together and establish an electrical connection; a conductive base including at least one elastic contact arm, the elastic contact arm and the supporting element slidably contact each other to form an electrical connection; and an elastic driving member provided between the conductive base and the supporting element, the contact member and the supporting element are capable of moving along the first direction relative to the conductive base by means of the elastic driving member.

Abstract: A pixel package includes an electrode structure, a plurality of light-emitting units arranged on the electrode structure, and a light transmitting layer. The electrode structure has an upper layer with a first upper sheet, a lower layer with a first lower sheet, and a supporting layer arranged between the upper layer and the lower layer. The electrode structure and the plurality of light-emitting units are fully embedded in the light transmitting layer. In a top view of the pixel package, the first upper sheet is overlapped with and larger than the first lower sheet.

Abstract: A method of preparing a remoldable shape memory bismaleimide resin includes blending 2-allylphenyl glycidyl ether and adipic acid in acetonitrile, carrying out an esterification reaction under the condition of quaternary ammonium salt as a catalyst to obtain bis(3-(2-allylphenoxy)-2-hydroxypropyl)adipate containing a reversible dynamic group; then uniformly mixing bis(3-(2-allylphenoxy)-2-hydroxypropyl)adipate and bismaleimide, curing to obtain the remoldable shape memory bismaleimide resin. The prepared remoldable shape memory bismaleimide resin is not only excellent heat resistance and mechanical properties, but also can be remolded under hot pressing conditions. The method of preparing the remoldable shape memory bismaleimide resin has the advantages of wide raw material sources and simple process, and has a wide application prospect in the fields of aerospace, transportation, electronic information, new energy, insulated electrical industry and the like.

Abstract: A wireless charging method for charging an underwater moving device is implemented by a charging device. The charging device receives electricity from a cable, and includes a first underwater wireless communication unit, a position holding unit, a first control unit, and a wireless charging transmitter. The underwater moving device includes a second underwater wireless communication unit, a wireless charging receiver, and a rechargeable battery. The first underwater wireless communication unit obtains moving device information by communicating with the second underwater wireless communication unit. The position holding unit holds the underwater moving device at a charging location, and generates a positioning success signal after the underwater moving device is held at the charging location. Upon receiving the positioning success signal, the first control unit controls the wireless charging transmitter to charge the rechargeable battery based on the moving device information.

Abstract: A robot fish system includes a robot fish, and a light-emitting device emitting a light signal. The robot fish includes a housing, on which first and second light receivers, a driving module and a processor are disposed. The processor is connected to the first and second light receivers and the driving module. The processor controls the driving module to operate in a left-turn mode to make the robot fish turn left when only the first light receiver receives the light signal, in a right-turn mode to make the robot fish turn right when only the second light receiver receives the light signal, in a straight-moving mode to make the robot fish move straight when both the first and second light receivers receive the light signal, and in a random mode to make the robot fish move randomly when none of the first and second light receivers receives the light signal.

Abstract: A film includes an ethylene-?-olefin copolymer. The film is a layer in a multilayer structure. The film has improved peel force and leaves no residue after being peeled off from a substrate.

Abstract: A biomimetic waterfowl includes a housing, two waterfowl legs, and a driving module. The waterfowl legs are spaced apart from each other in a left-right direction and are mounted to a bottom portion of the housing. Each waterfowl leg includes a first segment mounted to the housing and rotatable about a first axis parallel to the left-right direction, and a second segment rotatable about a second axis parallel to the first axis. The driving module is mounted to the housing and is configured to drive the waterfowl legs. Each of the waterfowl legs is movable between a retracted state, where the first segment extends forwardly from the housing and the second segment extends rearwardly from the first segment, and a propelling state, where the first segment extends rearwardly from the housing and the second segment extends rearwardly from the first segment.

Abstract: The present invention relates to a container liner for holding liquid goods, wherein the liner comprises a film comprising one or more layers, wherein at least one of said layers is a layer L1 comprising (a) ?20.0 wt %, preferably ?20.0 and ?80.0 wt %, with regard to the total weight of that layer L1, of a polyethylene P1 having: •a density of >900 and <915 kg/m3, preferably of >905 and <913 kg/m3 as determined in accordance with ASTM D1505 (2010); •a melt mass flow rate of ?0.1 and ?5.0 g/10 min, preferably of ?0.5 and ?2.0 g/10 min, as determined in accordance with ISO 1133-1 (2011) at 190° C. using a load of 2.16 kg; and (b) ?20.0 wt %, preferably ?20.0 and ?80.0 wt %, with regard to the total weight of that layer L1, of a polyethylene plastomer P2 having: •a density of >880 and <905 kg/m3, preferably of >890 and <904 kg/m3 as determined in accordance with ASTM D1505 (2010); •a melt mass flow rate of ?0.1 and ?5.0 g/10 min, preferably of ?0.5 and ?2.

Abstract: A wireless charging system adapted to be implemented in an underwater environment is provided. The wireless charging system includes a wireless charging device and an underwater moving device. The wireless charging device is configured to magnetically attract and hold the underwater moving device in a charging position. The wireless charging device includes a wireless transmitting unit that is disposed therein. The underwater moving device includes a wireless receiving unit that is disposed therein and that corresponds to the wireless transmitting unit in position when the underwater moving device is held in the charging position. Wherein, when the underwater moving device is in the charging position, the wireless receiving unit and the wireless transmitting unit are aligned with each other, and the wireless charging system is configured to control the wireless transmitting unit to wirelessly transmit power to the wireless receiving unit so as to charge the underwater moving device.

Abstract: A biomimetic fish includes a cover structure and two housing bodies arranged in a front-rear direction, connected to each other, and rotatable relative to each other about a rotating axis that extends in an up-down direction. The cover structure includes first and second cover portions respectively formed on the housing bodies. The first cover portion has two distal end parts disposed at a distal end thereof and arranged in a left-right direction. The second cover portion has two arcuate outer surfaces respectively adjacent to the distal end parts and each having a center of curvature located on the rotating axis. At least one of the arcuate outer surfaces is connected to the respective one of the distal end parts. An intersection of the arcuate outer surfaces and the respective one of the distal end parts is located at an inner side of the respective one of the distal end parts.

Abstract: A biomimetic turtle device includes a trunk unit, a limb unit and a control unit. The control unit includes a water depth sensor which detects water depth where the biomimetic turtle device is, and a circuit module which receives the signal from the water depth sensor and determines if the biomimetic turtle device is at a target water depth position, wherein a driving mechanism or a weight adjusting mechanism is operated if the biomimetic turtle device is not at the target water depth position to vary the volume or weight of the trunk unit so as to adjust density of the trunk unit to thereby adjust a water depth position of the biomimetic turtle device.

Abstract: The present disclosure relates to an elastic fiber, an elastic fiber covered yarn and reeling manufacturing methods thereof. The reeling manufacturing method of an elastic fiber includes: providing an elastic fiber material, the elastic fiber material having a core portion and a skin portion, the skin portion covering the core portion; performing a first extending, to have the elastic fiber material passing a first guiding roller, the speed of the first guiding roller being 500-1500 m/min; performing a second extending, to have the elastic fiber material passing a second guiding roller, the speed of the second guiding roller being 1200-2400 m/min; and performing a third extending, to have the elastic fiber material passing a third guiding roller, the speed of the third guiding roller is 1300-2600 m/min.

Abstract: Embodiments of this disclosure include an image processing method and apparatus. The method may include obtaining feature points corresponding to training images and feature center points of images in a second quantity of categories and obtaining a feature condition probability distribution that the feature points collide with corresponding feature center points. The method may further include performing network training to obtain target feature center points of the images in the second quantity of categories. The method may further include mapping the first quantity of feature points and the second quantity of target feature center points to a Hamming space, to obtain hash codes of the first quantity of training images and hash center points of the images in the second quantity of categories. The method may further include performing network training using the hash condition probability distribution and the ideal condition probability distribution, to obtain an image hash model.