Abstract: The present invention discloses a highly reliable positive-to-negative voltage conversion circuit, including a first inverter, a first buffer, a second buffer, a first to seventh NMOS transistors, a first to third PMOS transistors, a first resistor, a second resistor, a third resistor, and a fourth resistor, wherein the third PMOS transistor, the third NMOS transistor, the fourth NMOS transistor, the fifth NMOS transistor, the sixth NMOS transistor and the seventh NMOS transistor form an on/off control circuit, with that a power supply path between a positive-voltage power supply terminal and a negative-voltage power supply terminal is physically isolated by the on/off control circuit to eliminate voltage reversing occurring when the positive-voltage power supply terminal and the negative-voltage power supply terminal cannot be synchronized during power-on.

Abstract: A battery pack cooling system includes at least a cooling fluid including a plurality of cooling fluid circulation pipelines and at least an electronic water pump, a refrigeration element, a heat exchange element, a thermal runaway sensing element, and a fluid diversion assembly. The electronic water pump is configured to be communicatively connected to a controller of a vehicle and is arranged on the pipelines. the refrigeration element communicates with the cooling fluid circulation pipelines. the heat exchange element communicates with the pipelines. The thermal runaway sensing element is configured to be communicatively connected to the controller. The fluid diversion assembly includes a fluid guide channel and a fluid diversion valve. The fluid diversion valve is set as a multi-way solenoid valve, and has at least two interfaces configured to communicate with the pipelines, and at least one interface communicating with one end of the fluid guide channel.

Abstract: A geosteering method and apparatus, and a storage medium, where the method includes: acquiring first well trajectory information of a target well, and first geological information and second geological information of the target well; determining, by using a plane where a first well trajectory is located as a steering profile, a geological structure line of a first class geological layer corresponding to the first geological information on the steering profile, and determining, by using the geological structure line of the first class geological layer as a reference and based on the second geological information, a geological structure line of a second class geological layer corresponding to the second geological information on the steering profile, so as to obtain a geosteering model of the target well; and using the geosteering model to perform geosteering on actual drilling of the target well.

Abstract: A method for producing a low-cost fully biodegradable disposable straw. Natural plant powder is prepared. Deacetylated konjac gel is prepared. The taro starch-cassava starch is crosslinked. The raw material is stirred and mixed to obtain the mixed raw material, and the mixed raw material is heated. The heated raw material is added to the beverage straw manufacturing unit to obtain a straw crude. The straw crude is cut to obtain several straws. The quality inspection, the disinfection and the packaging of the straw are carried out, and the fully biodegradable straw is obtained, finally.

Abstract: Metalized materials are provided, in which the metalized materials include (i) a substrate comprising a nonwoven, a film, or a combination thereof; (ii) a metal coating layer (MCL); and (iii) a transparent coating layer (TCL); wherein the MCL is located directly or indirectly between the substrate and the TCL. Peelable metalized materials are also provided, in which the peelable metalized materials include a metalized material and a removable carrier layer located directly adjacent to the TCL. Methods for making peelable metalized materials and metalized materials are also provided.

Abstract: Embodiments of the present disclosure provide methods, devices, systems, and a computer readable medium for controlling an automatic guided vehicle (AGV). In some embodiments of the method, a first load identifier is determined at a first location on a predetermined trajectory of the AGV. The first load identifier represents a first load condition at the first location. A first set of values of a plurality of control parameters is determined based on the first load identifier. A movement of the AGV is controlled based on the first set of values. With these embodiments, the movement of the AGV can be controlled according to a set of values of control parameters based on the load condition.

Abstract: Methods, apparatuses, systems, and computer readable media for configuring a plurality of automated guided vehicles (AGVs). In a method, a plurality of folders corresponding to the plurality of AGVs are created at a management system managing the plurality of AGVs. A folder includes at least one configuration file for configuring an AGV. Based on a configuration file in the folder, a further folder of the plurality of folders is updated. One or more configuration files in the updated further folder are transmitted to an AGV corresponding to the further folder. Further, embodiments of present disclosure provide apparatuses, systems, and computer readable media for managing a plurality of AGVs.

Abstract: An electronic device and a method for controlling an unmanned ground vehicle. The electronic device includes a portable body which has a housing and a cable extending outward from the housing, wherein the cable is adapted to electrically connect the electronic device to an unmanned ground vehicle. The electronic device includes an enabling assembly that has an enabling component at least partially arranged outside the housing, wherein the enabling assembly is adapted to provide an enabling signal to the unmanned ground vehicle via the cable in response to the enabling component being operated. The electronic device includes an operating assembly at least partially arranged outside the housing and adapted to, in response to reception of the enabling signal, provide an operation signal to the unmanned ground vehicle to control an operation of the unmanned ground vehicle.

Abstract: A control circuit for a switching converter, can include: a ripple signal generation circuit configured to generate a ripple signal with a same frequency and phase as an inductor current of the switching converter, where the ripple signal changes between zero and a preset value; a superimposing circuit configured to superimpose the ripple signal on a feedback signal representing an output voltage of the switching converter, in order to generate a loop control signal; and a switching control signal generation circuit configured to generate switching control signals according to the loop control signal and a reference signal, in order to control a switching state of a power stage circuit in the switching converter.

Abstract: Disclosed is a method for preparing a fully-degradable non-woven fabric by spun-bonding, including: (S1) preparation of a poly(caprolactone-co-lactide acid) (P(CL-co-LA)); (S2) preparation of a copolymerized-modified poly(lactide acid) (PLA); and (S3) preparation of a full-degradable non-woven fabric using a spun-bond method. In this disclosure, the PLA is modified in gradient several times to prepare the full-degradable non-woven fabric in combination with an optimized spun-bonding method.

Abstract: The present disclosure belongs to the technical field of flight vehicle power devices, and particularly relates to a novel electric driving force device. More than two sets of driving motors are distributed in a solar planetary manner on a radial spatial plane with an output shaft as a center of gyration, to drive more than one set of reducing mechanism in parallel, so as to provide electric driving power for a flight vehicle.

Abstract: The present application discloses a single sided hydrophilic nonwoven fabric with high tensile strength and a CSR wrap made therefrom, wherein the single sided hydrophilic nonwoven fabric has a spunbonded/meltblown/spunbonded (SMS) structure consisting of a top spunbonded layer, a middle meltblown layer and a bottom spunbonded layer, wherein one side of the nonwoven fabric is hydrophilic, and the other side of the nonwoven fabric is hydrophobic.

Abstract: Disclosed are a speaker module and an earphone. The speaker module includes a first speaker unit, a bracket, and a second speaker unit. The first speaker unit includes a basin frame and a wiring terminal. The wiring terminal is disposed on the basin frame. The bracket includes an electrically conductive portion. The second speaker unit is fastened to the basin frame by using the bracket. An electrode of the second speaker unit is electrically connected to the wiring terminal by using the electrically conductive portion.

Abstract: Embodiments of the present disclosure provide a surgical pathway processing system, method, device, and storage medium. The system comprises an image segmentation module configured to obtain a first segmented image by performing image segmentation on a first medical image; an avoidance region determination module configured to determine a region to be avoided based on the first segmented image; and a pathway planning module configured to determine a surgical pathway based on the region to be avoided.

Abstract: A fully degradable non-woven fabric produced by melt-blown extrusion and an application thereof in the production of medical masks. The fully degradable non-woven fabric is produced through steps of: (S1) preparation of caprolactone-lactic acid random copolymer; (S2) preparation of copolymerized modified PLA; and (S3) preparation of non-woven fabric by the melt-blown extrusion.

Abstract: An apparatus includes a plurality of control modules coupled to a multi-phase power converter having a plurality of power stage circuits correspondingly coupled to the plurality of control modules, where each control module includes: a first port coupled to a second port of a previous control module; a second port coupled to a first port of a next control module, and being configured to generate a transmission signal for the next control module; and where the transmission signal represents at least two types of information, and is configured to control the corresponding power stage circuit to operate sequentially.

Abstract: Disclosed herein is a method for preparing a low-cost fully-biodegradable plant fiber starch tableware. A plant cellulose material containing dregs of Scutellaria baicalensis is modified to obtain a modified plant fiber starch blank. Konjac gum is subjected to pulverization and ultrafine pulverization to obtain a colloidal binder combined with a deacetylated konjac gum. The colloidal binder is mixed with the modified plant fiber starch blank to obtain a mixture. The mixture is subjected to foam molding in a forming mold to obtain the low-cost fully-biodegradable plant fiber starch tableware.

Abstract: Warming blankets are provided, in which the warming blankets include (i) a perspiration absorptive layer (PAL); (ii) a metal coating layer (MCL); and (iii) a thermal absorptive layer (TAL); wherein the MCL is located directly or indirectly between the PAL and the TAL. Methods of producing a warming blanket are also provided.

Abstract: Warming blankets are provided, in which the warming blankets include (i) a perspiration absorptive layer (PAL); (ii) a metal coating layer (MCL); and (iii) a transparent coating layer (TCL); wherein the MCL is located directly or indirectly between the PAL and the TCL. Methods of producing a warming blanket are also provided.