Abstract: A skin layer of a superconducting tape has a woven mesh structure and is disposed on a surface of a superconducting tape. The skin layer of a superconducting tape solves the problem where a vapor layer generated when a superconductor is in a normal resistive state greatly reduces the efficiency of a heat exchange between the superconductor and liquid nitrogen. Further provided are the superconducting tape and a superconducting coil.

Abstract: The present disclosure relates to a wide-range perpendicular sensitive magnetic sensor and the method for manufacturing the same, the magnetic sensor includes a substrate, a plurality of magnetic tunnel junctions, a plurality of magnetic flux regulators, a first output port and a second output port.

Abstract: A method for preparing a microstructure on the surface of glass by titanium oxide nanoparticle-assisted infrared nanosecond laser, including the following steps: (1) dropwise applying a titanium oxide nanoparticle hydrogel onto the surface of a glass sample; (2) pressing another piece of glass on the surface of the hydrogel, so the hydrogel is evenly distributed between the two pieces of glass, and allowing the two pieces of glass to stand horizontally for a period of time to air-dry the hydrogel; (3) separating the two pieces of glass to obtain a glass with a uniform titanium oxide nanoparticle coating; (4) forming a microstructure using an infrared nanosecond laser with a wavelength of 1064 nm; and (5) performing after-treatment, including ultrasonically cleaning the sample with acetone, absolute ethanol and deionized water respectively for 10 min to remove titanium oxide nanoparticles attached to the surface, to obtain a glass sample with the microstructure.

Abstract: The present disclosure relates to a wide-range perpendicular sensitive magnetic sensor and the method for manufacturing the same, the magnetic sensor includes a substrate, a plurality of magnetic tunnel junctions, a plurality of magnetic flux regulators, a first output port and a second output port.

Abstract: A current sensor includes: four first uniaxial TMR chips and at least two second uniaxial TMR chips, each first uniaxial TMR chip and each second uniaxial TMR chip being located on the same virtual ring, wherein magnetic sensitive directions of the four first uniaxial TMR chips are perpendicular to a radius of the virtual ring, magnetic sensitive directions of two adjacent first uniaxial TMR chips are perpendicular to each other, magnetic sensitive directions of the two second uniaxial TMR chips are parallel to the radius of the virtual ring and opposite to each other, and the two second uniaxial TMR chips respectively have the same positions as two first uniaxial TMR chips; each first uniaxial TMR chip and each second uniaxial TMR chip are configured to collect a magnetic induction intensity, the magnetic induction intensity is configured to calculate a target current value of a to-be-measured wire.

Abstract: Embodiments of the present disclosure provide a wing element structure for an aircraft, comprising a plurality of wing element units, wherein adjacent wing element units are connected by airfoil control units, hydraulic units and wing element outer edge connecting members, each of the wing element units comprises a plurality of wing element edge members connected to one another and a wing support rod connecting member, and the wing support rod connecting member located in a wing leading edge in the wing element unit is connected to a support rod structure on an aircraft main body.

Abstract: The present disclosure relates to an AC/DC closed-loop current sensor, including a magnetism gathering iron core, a TMR chip, a signal processing circuit, a signal generator, and a feedback coil. The TMR chip is arranged at an air gap of the magnetism gathering iron core and connected to the signal processing circuit. The signal processing circuit is connected to the signal generator. The feedback coil is wound around the magnetism gathering iron core and connected to the signal generator. The signal processing circuit is configured to select from the induced signal of the TMR chip and make an amplification to obtain a current signal component and send the current signal component to the signal generator. The signal generator is configured to adjust a current output to the feedback coil based on the current signal component, and output a measurement result of the selected current signal component.

Abstract: Embodiments of the present disclosure provide a wing element structure, a wing structure, and a flapping-wing aircraft. The wing element structure includes a plurality of wing element units, the adjacent wing element units being connected by an airfoil control unit and awing element outer edge connector, wherein each of the wing element units includes a plurality of interconnected wing element edge pieces and a wing link connector, and the wing link connector in each of the wing element units is correspondingly connected to a wing lever group of an aircraft. Embodiments of the present disclosure provide the wing element structure with large-scale variable airfoil characteristics in both chord length and curvature. The movement of the wing element structure is driven by the movement of the wing lever group.

Abstract: Embodiments of the present disclosure provide a wing element structure for an aircraft, a wing structure and an aircraft. The wing element structure comprises: a plurality of wing element units, wherein adjacent wing element units are connected by airfoil control units and wing element outer edge connecting members, each of the wing element units comprises a plurality of wing element edge members connected to one another and a wing support rod connecting member, and the wing support rod connecting member in the wing element unit is correspondingly connected to a wing support rod on an aircraft main body.

Abstract: A multi-band antenna structure, including a first antenna element, a second antenna element, a reflection panel, and a first parasitic structure of the first antenna element. A distance between the reflection panel and an antenna element with a higher operating frequency band is less than a distance between the reflection panel and an antenna element with a lower operating frequency band. A distance between the first antenna element and the second antenna element is less than 0.5 times a vacuum wavelength corresponding to a lower frequency bands. A distance between the first antenna element and the first parasitic structure is less than 0.5 times a vacuum wavelength corresponding to an operating frequency band of the first antenna element. A distance between the second antenna element and the first parasitic structure is less than 0.5 times a vacuum wavelength corresponding to an operating frequency band of the second antenna element.

Abstract: An apparatus is provided to prevent water ingress to a medical device with a housing. Such water ingress may originate, for example, from a connected humidifier. The apparatus consists of an endcap including at least one aperture for selective coupling with a compatible accessory. The end cap is constructed from panels which cooperate to provide an internal fluid passageway for diverting water from the point of ingress to the exterior of the housing.

Abstract: The present application relates to a suction dredger for use on an underwater hard soil layer and relates to the technical field of bridge construction equipment. The present suction dredger includes a mud suctioning mechanism, a mud-breaking mechanism, and a blockage-prevention assembly. The mud suctioning mechanism includes a pressurizing assembly and a suction dredging pipe. The suction dredging pipe passes through the pressurizing assembly and the two ends thereof at least partially extend past the pressurizing assembly. The side wall of the section of the suction dredging pipe located in the pressurizing assembly is provided with multiple pressurization holes that are inclined upward in the direction from the outer wall to the inner wall. The pressurizing assembly is used for, via the pressurization holes, forming low pressure in the suction dredging pipe. The mud-breaking mechanism includes at least two mud-breaking assemblies.

Abstract: Example multi-band antennas and communication devices are described. One example multi-band antenna includes a reflection plate and a feed structure. The reflection plate is provided with a slot, and the slot defines one strip conductor. One end of the strip conductor is connected to another part of the reflection plate. The feed structure includes a microstrip line used in a high-frequency antenna element in the multi-band antenna, where the microstrip line is located on one side of the reflection plate, and at least a part of a projection of the microstrip line on the reflection plate falls within a contour range of the strip conductor.

Abstract: A wing structure for a vehicle, and a vehicle. The wing structure comprises at least one multi-connecting-rod structure. The multi-connecting-rod structure is arranged in a direction extending from the main body of a vehicle to a wingtip, each multi-connecting-rod mechanism comprises a plurality of connecting rods, and connecting rods which are adjacent to each other are connected by means of a motor. The present technical solution provides a wing structure having the feature of a morphing wing having a large range in both chordwise and spanwise directions.

Abstract: This application describes multi-band antenna systems and base stations. An example multi-band antenna system includes: a plurality of radiating element arrays, feeding networks separately corresponding to the plurality of radiating element arrays, at least one layer of a frequency selective surface (FSS), and a reflection panel. The plurality of radiating element arrays are located above the reflection panel. All or some of the plurality of radiating element arrays are stacked. The at least one layer of the FSS is located between the stacked radiating element arrays. A feeding network corresponding to at least one radiating element array in the stacked radiating element arrays is electrically connected to the at least one layer of the FSS, or the feeding network corresponding to the at least one radiating element array is integrated on the at least one layer of the FSS.

Abstract: An apparatus is provided to change the absolute humidity of a flow of air for delivery to an entrance of the airways of a patient, the change being compared to the absolute humidity of ambient air. The apparatus has a reservoir configured to hold a volume of liquid. A heating element creates vapour from the liquid. A chamber is provided to mix the flow of air with the vapour. The apparatus has a body having a first wall structure with a chamber inlet port. A closure element having an air inlet port for pneumatically connecting to a source of the flow of air is secured to the body to provide a sealed gas flow path between the air inlet port and the chamber inlet port, and a liquid trap in the gas flow path.

Abstract: A process for preparing polypropylene particles by using recyclable coffee grounds plant fibers includes the following preparation steps: S1) preparing raw materials; S2) processing the raw materials; S3) mixing the raw materials to obtain a mixture; and S4) performing mixing and extrusion granulation on the mixture. The raw materials in S1 include 35-40 parts of coffee grounds powder, 60-80 parts of polypropylene resin, 2-5 parts of compatibilizer, 4-8 parts of toughening agent, 1-3 parts of diffusing agent, 1-3 parts of maleic anhydride, 0.7-1.6 parts of anti-UV agent, 3-6 parts of antioxidant, and 1-2 parts of white oil. The present disclosure adopts coffee grounds for mixing preparation, the discarded coffee grounds can be reused, the prepared polypropylene particles contain fiber components, and the performance of a material is improved.

Abstract: Disclosed herein are various compositions comprising neoplastic formulations and their methods of use.

Abstract: A process for preparing polypropylene particles by using recyclable coffee grounds plant fibers includes the following preparation steps: S1) preparing raw materials; S2) processing the raw materials; S3) mixing the raw materials to obtain a mixture; and S4) performing mixing and extrusion granulation on the mixture. The raw materials in S1 include 35-40 parts of coffee grounds powder, 60-80 parts of polypropylene resin, 2-5 parts of compatibilizer, 4-8 parts of toughening agent, 1-3 parts of diffusing agent, 1-3 parts of maleic anhydride, 0.7-1.6 parts of anti-UV agent, 3-6 parts of antioxidant, and 1-2 parts of white oil. The present disclosure adopts coffee grounds for mixing preparation, the discarded coffee grounds can be reused, the prepared polypropylene particles contain fiber components, and the performance of a material is improved.

Abstract: Embodiments of this application disclose a common aperture antenna and a communication device. The common aperture antenna includes: a reflection panel and a low frequency antenna unit, a frequency selective panel, and a high frequency antenna unit that are disposed on the same side as the reflection panel and are arranged in sequence. In the direction perpendicular to the reflection panel, the distance between the high frequency antenna unit and the reflection panel is greater than the distance between the low frequency antenna unit and the reflection panel, the frequency selective panel is disposed between the high frequency antenna unit and the low frequency antenna unit, and the frequency selective panel is a reflection ground of the high frequency antenna unit and has a total reflection characteristic for the working frequency of the high frequency antenna unit.