Abstract: An electric cleaning apparatus includes a body housing; a battery supported by the body housing; a motor supported by the body housing and electrically connected to the battery; a connecting element connected to the output shaft of the motor directly or indirectly, and a first cleaning assembly, wherein the second cleaning assembly further comprises: an outer housing having at least a inlet and an outlet; a filtering unit arranged in the outer housing; an impeller rotatably arranged in the outer housing, and an impeller connecting member connected to the impeller directly or indirectly, wherein the impeller connecting member can be detachably connected to the connecting element. The present disclosure enables the cleaning apparatus to perform multiple functions.

Abstract: An electronic device includes a chassis, a first board, a second board, a connector assembly installed on the first board, and a peer connector installed on the second board. The connector assembly includes a fastening frame, a connector, and an elastic member. The fastening frame forms an accommodating cavity. The connector is installed in the accommodating cavity, and the connector is plugged into the peer connector. The elastic member is disposed between the bottom wall and the connector, and is configured to drive the connector to abut against the peer connector. The first board and the second board are installed in the chassis. The first board includes a first body and a first stop block disposed on the first body. The chassis includes a first position limiting structure abutting against the first stop block.

Abstract: A proof of transit obtaining method, a proof of transit verification method, and an apparatus, to obtain a proof of transit based on a location of a forwarding node on a forwarding path and an identity of the forwarding node, for location binding of the proof of transit. The proof of transit is related to the identity of the forwarding node, and to the location of the forwarding node on the forwarding path. A correct proof of transit is computed by a correct node only when a data packet is forwarded to a correct location on the forwarding path, thereby strongly binding the proof of transit to an actual forwarding status of the data packet.

Abstract: Provided are a driver and a transmitter. The driver includes: an n-type metal-oxide-semiconductor field-effect transistor differential circuit, a p-type metal-oxide-semiconductor field-effect transistor differential circuit and a power supply. Gate electrodes of the p-type metal-oxide-semiconductor field-effect transistor differential circuit and the n-type metal-oxide-semiconductor field-effect transistor differential circuit receive a first level signal. The p-type and n-type metal-oxide-semiconductor field-effect transistor differential circuits convert the first level signal into a second level signal used by an actuator. Drain electrodes of the p-type and n-type metal-oxide-semiconductor field-effect transistor differential circuits output the second level signal.

Abstract: A method of forming a read head is described where a Tunneling Magnetoresistive (TMR) stack of layers comprised of a free layer (FL) and having sidewalls separated by a cross-track width is formed on a bottom shield. In subsequent steps, a first insulation layer and longitudinal biasing layer are formed on the sidewalls and bottom shield. After a TMR sensor backside is formed that exposes the bottom shield, a second insulation layer and permanent magnet (PM) layer are deposited on exposed portions of the bottom shield. Thereafter, the PM layer magnetization is initialized in a direction that adjusts FL bias point, and shifts sensor asymmetry (Asym) closer to 0% for individual heads at slider or Head Gimbal Assembly level to provide a significant improvement in device yield. Asym is adjusted using different initialization schemes and initialization directions. With individual heads, initialization direction is selected based on a prior asymmetry measurement.

Abstract: A multifunctional hand grip exerciser is provided, including a main body, a lever, and a finger pressing assembly. The main body includes a handle portion, an elastic assembly is disposed in the main body, mounting cavities are defined on the handle portion, and outer ends of the mounting cavities respectively penetrate through a surface of the handle portion. The lever is rotatably connected to the main body, a driving end of the lever is connected to the elastic assembly, and the elastic assembly is configured to provide resistance for the lever to rotate. The finger pressing assembly includes pressing heads for pressing, the pressing heads are disposed corresponding to the mounting cavities, the pressing heads are respectively and slidably disposed in the mounting cavities, and free ends of the pressing heads are capable of respectively extending out of or retracting into the mounting cavities.

Abstract: A method and a device for setting a network mode of an electronic terminal are provided. The method includes monitoring whether a mobile communication network area where the electronic terminal is located has been changed, acquiring network status information of a current network area, in response to the mobile communication network area being changed, and setting the network mode based on the network status information of the current network area.

Abstract: A fluorine-free transparent superhydrophobic coating, and a preparation method therefor and an application thereof are provided. In the preparation method, a three-dimensional network structure formed by self-assembly of a bisamide derivative (1,4-bis[(3,4-dioctyloxyphenyl)-bisamido]benzene, BPH-8) is used as a template; tetraethyl orthosilicate (TEOS) as a silica precursor is adsorbed on a surface of the template to undergo sol-gel polymerization to form silica with high transparency; then BPH-8 is removed by calcination to obtain a fibrous transparent silica surface; the silica surface is hydrophobically modified with octyltrichlorosilane to obtain a transparent superhydrophobic coating. The fluorine-free transparent superhydrophobic coating features a water contact angle of 162.7°, a sliding angle of less than 3°, and an average transmittance of visible light of 84.

Abstract: A semiconductor structure and a method for manufacturing same are provided. The semiconductor structure includes: a substrate, and a first transistor and a second transistor protruding from the substrate. The first transistor at least includes a first doped region and a second doped region arranged from bottom to top. The second transistor at least includes a third doped region and a fourth doped region arranged from bottom to top. Herein, the first doped region and the third doped region have a first conductivity type, the second doped region and the fourth doped region have a second conductivity type, and a breakdown voltage of the first transistor is smaller than a breakdown voltage of the second transistor.

Abstract: The vehicle diagnostic system includes a key management system and a to-be-diagnosed unit. The key management system receives a key authorization request sent by a diagnostic device, generates a temporary key based on the key authorization request, and sends a key authorization response to the diagnostic device. The key authorization response carries the temporary key. The key management system configures the temporary key for the to-be-diagnosed unit, so that the diagnostic device and the to-be-diagnosed unit complete a diagnostic based on the temporary key and obtain a diagnostic result. The temporary key is independent of a long-term key in a vehicle. The temporary key is configured to complete the vehicle diagnostic, so that the diagnostic device can be prevented from accessing the long-term key in the vehicle as much as possible.

Abstract: The embodiments of the present disclosure disclose a method and an apparatus for crystal growth. The method for crystal growth may include: placing a seed crystal and a target source material in a growth chamber of an apparatus for crystal growth; executing a growth of a crystal based on the seed crystal and the target source material according to physical vapor transport; determining whether a preset condition is satisfied during the crystal growth process; and in response to determining that the preset condition is satisfied, replacing a sublimated target source material with a candidate source material. In the present disclosure, by replacing the sublimated target source material with the candidate source material, a crystal with large-size and high-quality can be grown.

Abstract: In accordance with various embodiments of the present disclosure, an optical assembly is provided. In some embodiments, the optical assembly comprises an imaging component, an aiming system comprising an aiming light source and an aiming lens through which the aiming light is transmitted, and an illumination system comprising an illumination light source and an illumination lens having a lens body. The lens body has an incident surface positioned to receive light from the illumination light source, a first exit surface positioned such that some of the light received from the illumination light source exits through the first exit surface without being reflected within the lens body, a reflective surface adapted to reflect some of the light received from the illumination light source within the lens body, and a second exit surface positioned such that some of the light reflected by the reflective surface exits through the second exit surface.

Abstract: Provided is a semiconductor structure and a method for manufacturing the same. The semiconductor structure includes a substrate, and a first gate structure and a first contact structure on the substrate, the first contact structure includes a first contact part and a second contact part, the first contact part is connected to the second contact part, the first contact part is located between the second contact part and the substrate, the first contact structure is electrically connected to the first gate structure and the substrate, and sectional area of the first contact part is greater than sectional area of the second contact part.

Abstract: A method, an apparatus, a device, and a medium for processing a user page are provided. In the method, a processing request represented in a natural language is received, and the processing request is configured to perform a first action on a first page element in a group of page elements in the user page. A repository is obtained. The repository includes a group of actions performed on the group of page elements and an association between code data for performing the group of actions, and the group of actions includes the first action. Based on the processing request and the repository, first code data for performing the first action on the first page element is determined.

Abstract: A method includes obtaining satellite information, including a plurality of navigation satellite identifiers, and satellite data, observed values of an observation parameter, and weight values that are separately associated with the plurality of navigation satellite identifiers; determining that an inaccurate observed value exists in a set of the observed values; determining, based on the satellite information, a check vector representing accuracy of the set, and a plurality of eigenvectors representing accuracy of an observed value of the observation parameter that is associated with a corresponding navigation satellite identifier; performing cluster analysis on the check vector and the plurality of eigenvectors, and determining a target navigation satellite identifier corresponding to an eigenvector that is of a same type as the check vector; and performing selection in the plurality of navigation satellite identifiers and/or adjusting a weight value associated with the target navigation satellite identifie

Abstract: The present invention refers to an oligonucleotide comprising 10 to 25 nucleotides, at least one nucleotide having a modification, wherein the oligonucleotide hybridizes with a transcript or an mRNA of leucine-rich repeat kinase 2 (LRRK2) of SEQ ID NO. 1 and/or with pre-mRNA of LRRK2 of SEQ ID NO. 2 and/or a fragment thereof. The invention further refers to a pharmaceutical composition comprising such oligonucleotide, and the use of the oligonucleotide and pharmaceutical composition, respectively, for use in method of preventing and/or treating a human disease.

Abstract: Embodiments of the present disclosure relate to the field of semiconductors, and provide a semiconductor structure and a manufacturing method thereof. The semiconductor structure includes: a substrate, including active regions arranged in an array and an isolation structure separating the active regions, where the substrate has a first surface and a second surface opposite to each other; a buried word line structure, located at a side, close to the second surface, in the substrate and embedded in the active regions; a bit line structure, located on the first side of the substrate and electrically connected to the active regions; and capacitor structures, located on the second surface of the substrate and correspondingly connected to the active regions in a one-to-one manner.

Abstract: A DC switchgear includes: an instrument compartment in which secondary components for monitoring, protecting and measuring are arranged; a busbar compartment in which a main busbar and a first fixed contact connected with the main busbar is arranged; a cable compartment in which a conductor is arranged for connecting to a cable, and a second fixed contact connected with the conductor is further arranged in the cable compartment or the busbar compartment; and a handcart compartment in which a handcart capable of moving in and out of the handcart compartment is arranged, wherein a current-carrying branch, a commutation branch and an energy-absorbing branch are arranged on the handcart, a first and a second movable contacts respectively for contacting with the first and the second fixed contacts are further arranged on the handcart, and the first and the second movable contacts are respectively connected to both ends of the current-carrying branch.

Abstract: A method for preparing a rare earth aluminum alloy powder applicable for additive manufacturing includes: heating and melting aluminum ingots into an aluminum melt; adding required alloy elements to the aluminum melt to obtain an alloy melt in which the alloy elements are present in the following preset percentages by weight: 1.00% to 10.00% of Ce, 0.05% to 8.00% of Mg, 0.10% to 7.50% of Y, 0.10% to 2.50% of Zr, less than 0.1% of impurities, and the balance aluminum; leading out the alloy melt through a fluid guiding pipe, and impacting the alloy melt with a high-pressure gas flow so that the alloy melt is atomized into fine droplets under an action of surface tension, and solidified into spherical alloy powder; and collecting the spherical alloy powder in a vacuum collector, and screening and drying the spherical alloy powder to obtain the rare earth aluminum alloy powder.