Abstract: A method for reinforcing soft ground by post-grouting combined with pressurized vacuum preloading is proposed, by pre-burying prefabricated vertical drains and air-boosted pipes in granular material piles, and the air-boosted pipes are used as grouting pipes to reduce the number of times of piling, which not only improves the construction efficiency, but also reduces the structural disturbance of the soil and the influence of smear effect, thus reducing the impact on the radial permeability and the radial consolidation coefficients. The method does not use geotextile bags for granular materials, which can avoid the problem of forming a localized clogging area around the geotextile bags, and the method not only improves the efficiency of vacuum transfer in a pre-consolidation stage, but also improves the grouting effect in the later stage, effectively enhances the strength of soft soil and makes granular material piles and the surrounding soil form composite ground.

Abstract: A method for reinforcing soft ground by post-grouting combined with pressurized vacuum preloading is proposed, by pre-burying prefabricated vertical drains and air-boosted pipes in granular material piles, and the air-boosted pipes are used as grouting pipes to reduce the number of times of piling, which not only improves the construction efficiency, but also reduces the structural disturbance of the soil and the influence of smear effect, thus reducing the impact on the radial permeability and the radial consolidation coefficients. The method does not use geotextile bags for granular materials, which can avoid the problem of forming a localized clogging area around the geotextile bags, and the method not only improves the efficiency of vacuum transfer in a pre-consolidation stage, but also improves the grouting effect in the later stage, effectively enhances the strength of soft soil and makes granular material piles and the surrounding soil form composite ground.

Abstract: A low-cost modular liquid nitrogen low-temperature multi-nuclear magnetic resonance probe includes a Dewar, a pluggable coil and a front-end gain amplifier. The Dewar includes a cylindrical sandwich chamber, the center of the cylindrical sandwich chamber constitutes a room-temperature chamber, a sandwich of the cylindrical sandwich chamber is divided into a vacuum chamber and a liquid nitrogen chamber by a liquid nitrogen vessel wall, the vacuum chamber is located between the room-temperature chamber and the liquid nitrogen chamber, the pluggable coil and the front-end gain amplifier are provided in the vacuum chamber, the pluggable coil comprises a coil portion and a pluggable base, the coil portion is in pluggable connection with the pluggable base, and the pluggable coil is connected with the front-end gain amplifier. The probe realizes the transmission of radio frequency pulses and the reception of magnetic resonance signals, and is applicable to whole-body imaging of a small animal.

Abstract: A low-cost modular liquid nitrogen low-temperature multi-nuclear magnetic resonance probe includes a Dewar, a pluggable coil and a front-end gain amplifier. The Dewar includes a cylindrical sandwich chamber, the center of the cylindrical sandwich chamber constitutes a room-temperature chamber, a sandwich of the cylindrical sandwich chamber is divided into a vacuum chamber and a liquid nitrogen chamber by a liquid nitrogen vessel wall, the vacuum chamber is located between the room-temperature chamber and the liquid nitrogen chamber, the pluggable coil and the front-end gain amplifier are provided in the vacuum chamber, the pluggable coil comprises a coil portion and a pluggable base, the coil portion is in pluggable connection with the pluggable base, and the pluggable coil is connected with the front-end gain amplifier. The probe realizes the transmission of radio frequency pulses and the reception of magnetic resonance signals, and is applicable to whole-body imaging of a small animal.

Abstract: The present invention discloses a biaxial supporting device for a rotary opposed piston engine, comprising a cylinder body, a fixing component, a thick axle and a thin axle; the interior of the cylinder body has a cavity; the fixing component is fixed on the outer side wall of the cylinder body; the thick axle is provided with a through hole coaxial with the first axle hole, and is rotatably connected with the through hole; the thin axle is in transition fit with the through hole of the thick axle, and is rotatably connected with the fixing component. The present invention has simple structure, can effectively reduce a diameter difference of two axles to ensure the relatively small diameter of the thick axle and the relatively high strength of the thin axle, and can effectively realize biaxial support of the rotary opposed piston engine.

Abstract: Disclosed is a nucleic acid test kit, comprising a Cpf1 test system, said Cpf1 test system comprising: a guide RNA, a Cpf1 protein, a nucleic acid probe, and a manganese ion-containing solution. Also provided is a mutated Cpf1 protein and a nucleic acid test kit containing the mutated Cpf1 protein. Also provided is a crRNA for testing coronavirus nucleic acid, and a nucleic acid test kit containing said crRNA. Further provided is a use of the nucleic acid test kit, and a test method for the nucleic acid. When the nucleic acid test kit, mutated Cpf1 protein, or crRNA of the present invention are used for nucleic acid testing (for example, testing the nucleic acid of a SARS-related coronavirus or MERS coronavirus), the signal strength during the test is substantially enhanced, and the test time is thus reduced and the test efficiency improved.

Abstract: The present invention discloses a biaxial supporting device for a rotary opposed piston engine, comprising a cylinder body, a fixing component, a thick axle and a thin axle; the interior of the cylinder body has a cavity; the fixing component is fixed on the outer side wall of the cylinder body; the thick axle is provided with a through hole coaxial with the first axle hole, and is rotatably connected with the through hole; the thin axle is in transition fit with the through hole of the thick axle, and is rotatably connected with the fixing component. The present invention has simple structure, can effectively reduce a diameter difference of two axles to ensure the relatively small diameter of the thick axle and the relatively high strength of the thin axle, and can effectively realize biaxial support of the rotary opposed piston engine.

Abstract: The present application provides a display method for live broadcast screen of live broadcast room, storage device and computer device. The method includes the steps of: displaying multiple live broadcast cards on a current interface; identifying a user's touch action, and determining an address and playback mode of an audio and video stream of a touched live broadcast card according to the touch action; when it is determined that the playback mode is a small window mode, acquiring an audio and video stream of a live broadcast screen of a live broadcast room corresponding to the live broadcast card according to the address of the audio and video stream and parsing the audio and video stream; and drawing a small window interface on the current interface, and using the small window interface to play the parsed audio and video stream of the live broadcast screen.

Abstract: The present disclosure provides a method, an apparatus, and a device for generating an essence video, and a storage medium. The method includes: acquiring a plot keyword in a plot introduction of a movie and a television play; acquiring a first plot fragment corresponding to the plot keyword according to the plot keyword; acquiring a second plot fragment with a heat meeting a preset condition, the second plot fragment being different from the first plot fragment; and generating an essence video according to the first plot fragment and the second plot fragment. The present disclosure can acquire an essence video which is stitched naturally, developed logically and includes a plot fragment with higher heat.

Abstract: The present application provides a display method for live broadcast screen of live broadcast room, storage device and computer device. The method includes the steps of: displaying multiple live broadcast cards on a current interface; identifying a user's touch action, and determining an address and playback mode of an audio and video stream of a touched live broadcast card according to the touch action; when it is determined that the playback mode is a small window mode, acquiring an audio and video stream of a live broadcast screen of a live broadcast room corresponding to the live broadcast card according to the address of the audio and video stream and parsing the audio and video stream; and drawing a small window interface on the current interface, and using the small window interface to play the parsed audio and video stream of the live broadcast screen.

Abstract: The present disclosure provides a method, an apparatus, and a device for generating an essence video, and a storage medium. The method includes: acquiring a plot keyword in a plot introduction of a movie and a television play; acquiring a first plot fragment corresponding to the plot keyword according to the plot keyword; acquiring a second plot fragment with a heat meeting a preset condition, the second plot fragment being different from the first plot fragment; and generating an essence video according to the first plot fragment and the second plot fragment. The present disclosure can acquire an essence video which is stitched naturally, developed logically and includes a plot fragment with higher heat.

Abstract: An information exchanging method, an information exchanging device, and a terminal are provided. The information exchanging method is applied to an audio terminal. The method includes: receiving an input instruction from a user; generating a content request message according to the input instruction and a connection state identifier of the audio terminal, and sending the content request message to a server, wherein the connection state identifier indicates whether the audio terminal is connected to the video display device; and receiving a content request response message returned by the server. Thus, voice instructions input by the user can be more accurately performed according to the connection state of the audio device.

Abstract: An information exchanging method, an information exchanging device, and a terminal are provided. The information exchanging method is applied to an audio terminal. The method includes: receiving an input instruction from a user; generating a content request message according to the input instruction and a connection state identifier of the audio terminal, and sending the content request message to a server, wherein the connection state identifier indicates whether the audio terminal is connected to the video display device; and receiving a content request response message returned by the server. Thus, voice instructions input by the user can be more accurately performed according to the connection state of the audio device.