Abstract: The present disclosure provides a multi-antenna single-station stereoscopic-arrangement ultra-short baseline lightning location method and related devices.

Abstract: A cleaning water tank includes a water tank housing and a switch assembly. The water tank housing includes a water storage cavity, a water injection port in a side of the water tank housing, and a water outlet in a bottom of the water tank housing. The water injection port and the water outlet are both communicated with the water storage cavity. The switch assembly is movably arranged to the water tank housing. The water storage cavity is configured to be isolated from an outside air, when the switch assembly is in a closed position, and the water storage cavity is configured to be communicated with the outside air to form a pressure difference, when the switch assembly is in an open position, to allow water in the water storage cavity to be discharged from the water tank housing via the water outlet under the action of the pressure difference.

Abstract: Semiconductor structure and forming method thereof are provided. The semiconductor structure includes a substrate and a plurality of transistors located over the substrate. A transistor of the plurality of transistors includes: a channel layer parallel to a substrate surface, a gate structure surrounding the channel layer, and a source/drain doped region located on two sides of the gate structure. The source/drain doped region is in contact with the channel layer, and the gate structure is electrically isolated from the source/drain doped region. The semiconductor structure also includes a first metal structure located over the substrate, and a second metal structure located over the first metal structure and the gate structure. The first metal structure is in contact with the source/drain doped region. The first metal structure, the source/drain doped region and the gate structure are arranged along a first direction. The first direction is parallel to the substrate surface.

Abstract: A semiconductor structure includes a substrate, channel layers arranged in parallel along a first direction, gate structures arranged in parallel along a second direction, source doped regions and drain doped regions located on two sides of the gate structures respectively, and a metal layer. The gate structures surround the channel layers, respectively. The first and second directions are parallel to a substrate surface and perpendicular to each other. The source and drain doped regions contact the channel layers, respectively. The metal layer contacts one of the source or drain doped regions. The metal layer, one of the source doped regions, one of the drain doped regions, and one of the gate structures are stacked along the second direction.

Abstract: In this application, by using a method for collaborative recording by using a mobile terminal and the true wireless stereo earbud, recording with more complete data amount can be collected, and cooperative noise reduction is performed on a recording signal collected by the mobile terminal and a recording signal collected by the true wireless stereo earbud, so that accuracy and integrity of a human voice signal obtained through separation are higher. Further, in this application, when the true wireless stereo earbud performs recoding in a mode of single-earbud recording, a data amount of the true wireless stereo earbud is relatively small. Therefore, when the mobile terminal receives, through Bluetooth, data sent by the true wireless stereo earbud, excessive occupation of Bluetooth bandwidth of the mobile terminal is avoided, and power consumption of a mobile phone is reduced.

Abstract: A broadband interferometer lightning positioning method based on pulse matching and a system thereof that improves the positioning accuracy of the interferometer to the lightning radiation source. The method includes acquiring a very high frequency radiation pulse signal set of lightning; determining a first very high frequency radiation pulse signal within a set time period as a reference pulse signal; determining a first comparison pulse signal, and determining a second comparison pulse signal; moving both the first comparison pulse signal and the second comparison pulse signal to the position corresponding to the reference pulse signal using the cross-correlation algorithm to obtain a pulse signal set, simultaneously covering each pulse signal in the pulse signal set using a sliding window with a set width to determine the position of the lightning radiation source.

Abstract: The present invention discloses a stomach tube for preventing aspiration, comprising: a control circuit, an air pump, a PH sensor and a stomach tube provided with an air sack, wherein the air pump is in communication with the air sack, the PH sensor is arranged on an inner wall of the stomach tube at a distance of 40 cm away from a foretooth, and the control circuit is connected to the air pump and the PH sensor, respectively.

Abstract: Disclosed in the present invention are a method for specifically up-regulating gene expression through targeting core promoter using small RNAs (including microRNAs and small interfering RNAs), and a series of regulation target genes. An objective of the present invention is to provide a method for specifically up-regulating gene expression using micro-RNAs, and the present invention possesses a high application value and a broad application prospect in the fields of biotechnology and biomedicine.

Abstract: The present invention discloses a conveyor belt comprising: a load carrying core, an upper cover layer above said core, a pulley cover layer beneath said core, wherein the pulley cover layer includes at least one high elastic modulus layer which extends beneath at least a portion of the pulley cover layer and wherein the high elastic modulus layer is comprised of a high elastic modulus material and wherein the high elastic modulus material has elastic modulus which is within the range of 0.3 GPa to 220 GPa and wherein the high elastic modulus layer has a thickness which is within the range of 0.005 mm and 4 mm.

Abstract: A total-sky lightning event observation system and method may include a photographing device, a housing, a temperature control device, a light shielding device, a control module, a power supply module, a corona current sensor, a data acquisition device, a GPS antenna, a GPS timing module and a processing unit. The photographing device can capture total-sky digital images and transmit the images directly to the processing unit. The processing unit consecutively acquire corona current via the data acquisition device and judges whether there exists thunderstorm activity within the observed range; if there exists thunderstorm activity, the light shielding device is opened so as to enter a lightning observation mode, and the light shielding device is closed after the observation is finished so as to protect the photographing device in non-thunderstorm weather.

Abstract: A total-sky lightning event observation system and method may include a photographing device, a housing, a temperature control device, a light shielding device, a control module, a power supply module, a corona current sensor, a data acquisition device, a GPS antenna, a GPS timing module and a processing unit. The photographing device can capture total-sky digital images and transmit the images directly to the processing unit. The processing unit consecutively acquire corona current via the data acquisition device and judges whether there exists thunderstorm activity within the observed range; if there exists thunderstorm activity, the light shielding device is opened so as to enter a lightning observation mode, and the light shielding device is closed after the observation is finished so as to protect the photographing device in non-thunderstorm weather.

Abstract: The present invention discloses a conveyor belt comprising: a load carrying core, an upper cover layer above said core, a pulley cover layer beneath said core, wherein the pulley cover layer includes at least one high elastic modulus layer which extends beneath at least a portion of the pulley cover layer and wherein the high elastic modulus layer is comprised of a high elastic modulus material and wherein the high elastic modulus material has elastic modulus which is within the range of 0.3 GPa to 220 GPa and wherein the high elastic modulus layer has a thickness which is within the range of 0.005 mm and 4 mm.

Abstract: A method for forming a two-way shape memory surface includes thermomechanically training a shape memory alloy under substantially constant indentation strain. Thermomechanical training includes removeably securing an indenter to a surface of the shape memory alloy in its martensite phase, so that an indent is formed in the surface. The shape memory alloy is then heated to its austenite phase while the indenter is secured thereto. The shape memory alloy is then quenched to its martensite phase while the indenter is secured thereto. After thermomechanical training, the shape memory alloy surface exhibits a first indent depth when in its martensite phase, and a second, different indent depth when in its austenite phase. Also disclosed herein is a method for forming one-way and two-way reversible surface protrusions on shape memory alloys.

Abstract: A method for forming a two-way shape memory surface includes thermomechanically training a shape memory alloy under substantially constant indentation strain. Thermomechanical training includes removeably securing an indenter to a surface of the shape memory alloy in its martensite phase, so that an indent is formed in the surface. The shape memory alloy is then heated to its austenite phase while the indenter is secured thereto. The shape memory alloy is then quenched to its martensite phase while the indenter is secured thereto. After thermomechanical training, the shape memory alloy surface exhibits a first indent depth when in its martensite phase, and a second, different indent depth when in its austenite phase. Also disclosed herein is a method for forming one-way and two-way reversible surface protrusions on shape memory alloys.