Abstract: Disclosed is a cavity filter including a housing, and a first sheet-shaped resonant rod, a second sheet-shaped resonant rod, and a third sheet-shaped resonant rod disposed in the housing. The first sheet-shaped resonant rod includes a first upright section and a first extension section extending from one side of the first upright section. The second sheet-shaped resonant rod includes a second upright section and a second extension section extending from one side of the second upright section. The second upright section, the first upright section, and the third sheet-shaped resonant rod are connected to the housing, and the first extension section and the second extension section extend toward each other. Capacitive coupling is formed between the first and second sheet-shaped resonant rods. Capacitive coupling or inductive coupling is formed between the second and third sheet-shaped resonant rods and between the first and third sheet-shaped resonant rods.

Abstract: Disclosed is a cavity filter including a housing, and a first sheet-shaped resonant rod, a second sheet-shaped resonant rod, and a third sheet-shaped resonant rod disposed in the housing. The first sheet-shaped resonant rod includes a first upright section and a first extension section extending from one side of the first upright section. The second sheet-shaped resonant rod includes a second upright section and a second extension section extending from one side of the second upright section. The second upright section, the first upright section, and the third sheet-shaped resonant rod are connected to the housing, and the first extension section and the second extension section extend toward each other. Capacitive coupling is formed between the first and second sheet-shaped resonant rods. Capacitive coupling or inductive coupling is formed between the second and third sheet-shaped resonant rods and between the first and third sheet-shaped resonant rods.

Abstract: This application discloses a method and an apparatus for modifying a file name and a storage medium. The method includes: displaying a first target file of which a name is to be modified, the first target file being currently located under a target level directory, and a current file name of the first target file being a first file name; receiving a file name modification operation for the first target file, the file name modification operation being used for instructing to perform a name modification operation on object files in a file set, and the object files being located under the target level directory and having a same file name as the first target file; and modifying file names of the object files in the file set from the first file name to a second file name in response to the file name modification operation.

Abstract: A method for guiding palm verification performed by a computer device is disclosed. The method includes: displaying a guidance interface for palm verification, the guidance interface including graphical guidance information and the graphical guidance information comprising a movable element in a moving region, and a display location of the movable element in the moving region indicating a current distance between a palm and a detection device; dynamically adjusting the display location of the movable element in the moving region on the guidance interface in response to a change of the current distance between the palm and the detection device; and displaying first prompt information for indicating starting of verification or completion of verification when the display location of the movable element in the moving region meets a preset condition.

Abstract: This application discloses a palm image recognition method performed by a computer device. The method includes: performing palm detection on a palm image captured by a camera to generate a palm box for a palm in the palm image (304); determining location information of the palm relative to the camera based on the palm box and the palm image; and displaying a palm identifier corresponding to the palm based on the location information, the palm identifier being used for indicating the palm to move to a preset spatial location corresponding to the camera to obtain an object identifier corresponding to the palm image. A user, based on the palm identifier, moves its palm to the preset spatial location corresponding to the camera to perform palm image recognition.

Abstract: This application relates to an image acquisition method performed by a computer device. The method includes: displaying a mapping pattern corresponding to a key area of a target part of a target object in response to a pattern display operation triggered by the target object; changing a display state of the currently displayed mapping pattern when a relative position of the target part relative to an image acquisition element changes; and acquiring a key area image of the target part contactlessly by using the image acquisition element when the currently displayed mapping pattern matches a preset recognition pattern.

Abstract: Provided are a coaxial filter and a communication radio frequency device. The communication radio frequency device includes the coaxial filter. The coaxial filter includes a housing having a resonant cavity, a cover plate, and a resonator. The cover plate corresponds to the resonant cavity and covers the housing. The resonator includes plurality of elastic pieces, a connection portion, and a body portion which are sequentially connected from one end to another end. The connection portion is connected to a bottom of the resonant cavity.

Abstract: A cavity filter includes a housing, an input resonator and an output resonator. The input resonator includes a first sheet-like resonant body, an input end extending outward from one side of the first sheet-like resonance body and a first branch extending outward from the first sheet-like resonance body and/or the input end, and the input end extends out of the housing through the input through hole. The output resonator includes a second sheet-like resonant body, an output end extending outward from one side of the second sheet-like resonance body, and a second branch extending outward from the second sheet-like resonance body and/or the output end, and the output end extends out of the housing through the output through hole. The lengths of the first branch and the second branch are both a quarter wavelength of a resonant frequency of the cavity filter.

Abstract: Disclosed is a cavity filter including a housing, and a first sheet-shaped resonant rod, a second sheet-shaped resonant rod, and a third sheet-shaped resonant rod disposed in the housing. The first sheet-shaped resonant rod includes a first upright section and a first extension section extending from one side of the first upright section. The second sheet-shaped resonant rod includes a second upright section and a second extension section extending from one side of the second upright section. The second upright section, the first upright section, and the third sheet-shaped resonant rod are connected to the housing, and the first extension section and the second extension section extend toward each other. Capacitive coupling is formed between the first and second sheet-shaped resonant rods. Capacitive coupling or inductive coupling is formed between the second and third sheet-shaped resonant rods and between the first and third sheet-shaped resonant rods.

Abstract: This application discloses a method and an apparatus for modifying a file name and a storage medium. The method includes: displaying a first target file of which a name is to be modified, the first target file being currently located under a target level directory, and a current file name of the first target file being a first file name; receiving a file name modification operation for the first target file, the file name modification operation being used for instructing to perform a name modification operation on object files in a file set, and the object files being located under the target level directory and having a same file name as the first target file; and modifying file names of the object files in the file set from the first file name to a second file name in response to the file name modification operation.

Abstract: A plugging agent with temperature-resistant, salt-resistant and high-expansion for plugging large fractures and a preparation method thereof of the present disclosure are provided, the plugging agent system consists of the following components: main agent: 6%˜10%, cross-linking agent: 0.6%˜1%, initiator: 0.006%˜0.01%, additive: 6%˜14%, and the rest being water; the preparation method includes the following steps: adding montmorillonite to water to prepare a montmorillonite dispersion system; adding the main agent, the cross-linking agent and the initiator to the montmorillonite dispersion system to prepare a main agent solution; putting the main agent solution into an oven with a temperature range with 90˜20° C. for 9˜48 h to obtain gelation, the adhesive strength of the agent system can reach grade H, with 50˜80 expansion multiple, good strength after being expanded and good water plugging effect under the condition of a temperature of 140° C. and 250,000 degree of mineralization.

Abstract: A transfer device for holding an object comprises: i) a housing; ii) at least one inlet conduit having an inlet for gas; iii) a plurality of sets of outlet conduits, each set of outlet conduits being in fluid communication with the at least one inlet conduit and having a plurality of outlets for directing the gas out of the outlet conduits. The respective outlets of the sets of outlet conduits are arranged in a direction along the housing surface and away from a center region relative to the respective sets of outlet conduits, so that a laminar gas flow that flows along the housing surface generates a pressure differential which creates a force towards the center region to hold the object against the housing surface.

Abstract: An apparatus for transferring a solar wafer or cell is disclosed, which comprises: i) a rotary motor; ii) a gripper for holding the solar wafer or cell; and a rotary arm connected between the rotary motor and the gripper, the rotary arm being drivable by the rotary motor in a first rotary direction through a transfer angle for transferring the solar wafer or cell between different positions. In particular, the apparatus further comprises an angle-compensating device configured to drive the gripper through a same transfer angle as the rotary arm in a second rotary direction opposite to the first rotary direction, to ensure that an angular orientation of the solar wafer or cell remains constant during rotation of the rotary arm.

Abstract: Disclosed is a transfer device for holding an object. The transfer device comprises: i) a housing having a housing surface; ii) at least one inlet conduit having an inlet for introducing a gas into the at least one inlet conduit; iii) a plurality of sets of outlet conduits, each set of outlet conduits being in fluid communication with the at least one inlet conduit and having a plurality of outlets for directing the gas out of the outlet conduits. In particular, the respective outlets of the sets of outlet conduits are arranged in a direction along the housing surface and away from a centre region relative to the respective sets of outlet conduits, so that a laminar gas flow that is flows along the housing surface generates a pressure differential which creates a force towards the centre region to hold the object against the housing surface. A gang picker is also disclosed.

Abstract: Disclosed is an apparatus for electrically interconnecting a plurality of solar cells. The apparatus comprises: i) a roller operative to roll along a solar cell to press an electrical conductor against an electrical contact of the solar cell, the electrical conductor being for electrically interconnecting the solar cell with one or more other solar cells; and ii) a heat-generating device arranged and configured to provide heat for soldering the electrical conductor to the electrical contact of the solar cell while the roller is pressing the electrical conductor against the electrical contact of the solar cell. A method of electrically interconnecting a plurality of solar cells, and a mechanism for laying and soldering an electrical conductor onto a solar cell, are also disclosed.

Abstract: An apparatus for transferring a solar wafer or cell is disclosed, which comprises: i) a rotary motor; ii) a gripper for holding the solar wafer or cell; and a rotary arm connected between the rotary motor and the gripper, the rotary arm being drivable by the rotary motor in a first rotary direction through a transfer angle for transferring the solar wafer or cell between different positions. In particular, the apparatus further comprises an angle-compensating device configured to drive the gripper through a same transfer angle as the rotary arm in a second rotary direction opposite to the first rotary direction, to ensure that an angular orientation of the solar wafer or cell remains constant during rotation of the rotary arm.

Abstract: Disclosed is a belt conveyor, which conveys solar wafers during fabrication, comprising: i) a plurality of endless metal strips for supporting the solar wafers; ii) a plurality of rotatable pulleys configured to receive the plurality of endless metal strips, and which rotate to convey each of the plurality of endless metal strips along a continuous path to thereby convey the solar wafers; and iii) an inspection device configured to inspect the solar wafers while the solar wafers are being conveyed by the plurality of endless metal strips.

Abstract: A method of forming a combined feature boundary based on boundaries of first and second overlapping features includes dividing the boundaries of the first and second overlapping features into line segments of known shape, identifying crossing points formed by the line segments, calculating parametric coordinates of the crossing points, and determining a sequence of crossing point evaluation based on the parametric coordinates. The method also includes calculating first and second cross products based on the line segments forming first and second crossing points in the determined sequence, and choosing first and second paths of the combined feature boundary according to mathematical signs of the cross products, wherein the combined feature boundary includes the first and second crossing points and portions of at least one of the first and second feature boundaries defining the first and second paths.