Abstract: Disclosed is a device for solid-state fluidized mining of natural gas hydrates in a shallow seabed, including: a sea surface support system, a pipeline delivery system, and an undersea drilling system. The sea surface support system includes a hydrate drilling vessel floating on seawater. The pipeline delivery system includes a continuous double-layer oil pipe, a recyclable conduit installed in a sediment cover, an open-hole steering packer installed outside the recyclable conduit. The undersea drilling system includes a hydrate slurry separator, a single screw pump, a hydraulic motor, a jet head and a differential pressure sliding sleeve close to the hydrate drill bit. The present invention has the following beneficial effects. The device achieves a multi-directionally horizontal drilling and production in the hydrate reservoir with a single well head, improving the drilling efficiency and single well production.

Abstract: This application provides a lens module and a lens module control method to implement, among other features, automatic focusing and improve image definition. The lens module includes an imaging lens, a first control module, a first processing module, a liquid lens, and an image chip. The liquid lens is configured to refract an imaging beam that comes from the imaging lens, and the liquid lens comprises a transparent first flat lens and a transparent second flat lens that are parallel to each other. The first control module is configured to adjust a distance between the first flat lens and the second flat lens. The first processing module is configured to adjust a distance between the first flat lens and the second flat lens by using the first control module and based on a definition of the digital image, so as to adjust the definition of the image generated by the image chip.

Abstract: The present disclosure relates to a backlight module as well as a display panel and an electronic device comprising the same. The backlight module includes: a light guide plate; a first low refractive plating layer; a diffusion plating layer; a high refractive plating layer; a second low refractive plating layer; a Bragg reflective plating layer; and a light source. Further, in the backlight module, refractive indexes of the first low refractive plating layer and the second low refractive plating layer are lower than that of the light guide plate, and a refractive index of the high refractive plating layer is higher than that of the light guide plate.

Abstract: A backlight assembly, a method for manufacturing the same and a display device are provided. The backlight assembly includes: a light guide plate having a first surface and a second surface opposite to each other, a reflective layer at a position adjacent to the first surface of the light guide plate, and a piezoelectric unit on a surface of the reflective layer distal to the light guide plate. The piezoelectric unit is configured to undergo deformation in a direction close to the first surface and in a direction away from the first surface according to an audio voltage applied to the piezoelectric unit, and drive the reflective layer to undergo deformation to emit a sound.

Abstract: A prism sheet includes a prism substrate having at least one cavity therein and a plurality of prism microstructures arranged on a light exit surface of the prism substrate.

Abstract: The present disclosure relates to a backlight module as well as a display panel and an electronic device comprising the same. The backlight module includes: a light guide plate; a first low refractive plating layer; a diffusion plating layer; a high refractive plating layer; a second low refractive plating layer; a Bragg reflective plating layer; and a light source. Further, in the backlight module, refractive indexes of the first low refractive plating layer and the second low refractive plating layer are lower than that of the light guide plate, and a refractive index of the high refractive plating layer is higher than that of the light guide plate.

Abstract: A shower bar system illustratively includes an upper mount, a lower mount, and a shower column supported external to a shower wall by the upper mount and the lower mount. A diverter valve assembly is positioned vertically proximate the upper mount, and a user interface is positioned vertically proximate the lower mount. A connecting pipe fluidly couples the diverter valve assembly to an outlet, and operably couples the user interface to the diverter valve assembly.

Abstract: The present invention discloses a device for solid-state fluidization mining of seabed shallow layer non-diagenetic natural gas hydrates. The device comprises a hydraulic jet nozzle set, a coiled tubing, a hydrate collecting ship arranged on the sea surface, a transfer station arranged in sea water and a riser arranged in a seabed surface layer. A guide seat is arranged in the riser. The hydraulic jet nozzle set is arranged in the guide seat. A delivery pipe connected with the transfer station sleeves a nozzle body. An opening is formed in a position where the delivery pipe is in contact with the nozzle body. The transfer station is connected with the hydrate collecting ship. The present invention further discloses a method for collecting seabed shallow layer non-diagenetic hydrates.

Abstract: An embodiment of the present invention discloses an image processing method, an apparatus, and a device. The method is applied to a terminal having two specially manufactured cameras. A first sub-image that is of a to-be-photographed object and that is photographed by a first camera is obtained, where a corresponding field-of-view range is [0, ?1]; a second sub-image that is of the to-be-photographed object and that is photographed by a second camera is obtained, where a corresponding field-of-view range is [?2, ?3], and quality of the first sub-image and the second sub-image satisfies a definition requirement of an extra-large aperture; and the first sub-image and the second sub-image are spliced and fused to obtain a target image that has a larger field-of-view range and satisfies the extra-large aperture.

Abstract: The present invention discloses a device for solid-state fluidization mining of seabed shallow layer non-diagenetic natural gas hydrates. The device comprises a hydraulic jet nozzle set, a coiled tubing, a hydrate collecting ship arranged on the sea surface, a transfer station arranged in sea water and a riser arranged in a seabed surface layer. A guide seat is arranged in the riser. The hydraulic jet nozzle set is arranged in the guide seat. A delivery pipe connected with the transfer station sleeves a nozzle body. An opening is formed in a position where the delivery pipe is in contact with the nozzle body. The transfer station is connected with the hydrate collecting ship. The present invention further discloses a method for collecting seabed shallow layer non-diagenetic hydrates.

Abstract: Disclosed is a device for solid-state fluidized mining of natural gas hydrates in a shallow seabed, including: a sea surface support system, a pipeline delivery system, and an undersea drilling system. The sea surface support system includes a hydrate drilling vessel floating on seawater. The pipeline delivery system includes a continuous double-layer oil pipe, a recyclable conduit installed in a sediment cover, an open-hole steering packer installed outside the recyclable conduit. The undersea drilling system includes a hydrate slurry separator, a single screw pump, a hydraulic motor, a jet head and a differential pressure sliding sleeve close to the hydrate drill bit. The present invention has the following beneficial effects. The device achieves a multi-directionally horizontal drilling and production in the hydrate reservoir with a single well head, improving the drilling efficiency and single well production.

Abstract: The present disclosure provides an intelligent explosion-proof table, including a worktable, an explosion-proof box; the worktable has a window passing through in the vertical direction. The explosion-proof box with an open top is arranged under the window of the worktable. A lifting plate which can be moved up and down and a support mechanism for driving the lifting plate to be lifted are provided inside the explosion-proof box. The lifting plate is used for placing a danger source and matches with the window and is capable of being raised into the window.

Abstract: A periscope lens module of a mobile terminal and the mobile terminal are disclosed. The periscope lens module includes a motor housing (8) and a lens (3). The lens (3) includes an enclosure, a first lens (33), and a second lens. The enclosure includes a first cylinder (31) and a second cylinder (32) connected to the first cylinder (31), at least one gap (311) penetrating a sidewall of the first cylinder (31) is disposed on the sidewall, the first lens (33) is fastened in the first cylinder, and the second lens is fastened in the second cylinder (32).

Abstract: The invention provides an engineering vehicle having a ballast unloading device (100) and a ballast leveling device (200). The engineering vehicle includes a vehicle body (10), and the ballast unloading device (100) and the ballast leveling device (200) arranged on the vehicle body (10). The ballast unloading device (100) includes: a ballast carrying portion (20) provided with ballast unloading openings (21), and the ballast carrying portion (20) being arranged on the vehicle body (10); ballast unloading doors (30) capable of rotating relative to the ballast carrying portion (20), inner unloading passages (31) and outer unloading passages (32) being arranged on the ballast unloading doors (30), the ballast unloading doors (30) further including stop portions (33) located between the inner unloading passages (31) and the outer unloading passages (32).

Abstract: The present disclosure provides a method and device for operating a CT-based three-dimensional image used for security inspection. The method includes: providing a CT-based three-dimensional image used for security inspection; accepting a selection of an image of an object in the three-dimensional image; and responding to the selection. The present disclosure has strong practicality, and can provide effective reference information for image judgment in the CT-based security inspection field.

Abstract: A shower bar system illustratively includes an upper mount, a lower mount, and a shower column supported external to a shower wall by the upper mount and the lower mount. A diverter valve assembly is positioned vertically proximate the upper mount, and a user interface is positioned vertically proximate the lower mount. A connecting pipe fluidly couples the diverter valve assembly to an outlet, and operably couples the user interface to the diverter valve assembly.

Abstract: Disclosed is a method for positioning a target in a three-dimensional CT image and a CT system for security inspection. The method includes: displaying a three-dimensional CT image; receiving a selection by a user of at least one area of the three-dimensional CT image at a viewing angle; generating at least one set of three-dimensional objects in a depth direction based on the selection; and determining a target object from the set. With the above technical solutions, the user may be facilitated in marking a suspected object in a CT image in a quick manner.

Abstract: A line-width measurement device and a measurement method using the same are disclosed. The line-width measurement device has a platform, an image capturing device and a color-mixing light source device. The image capturing device captures an image of a pattern under measurement in a measurement area of the platform. The color-mixing light source device correspondingly provides illumination to the measurement area. The color-mixing light source device has a plurality of monochromatic light sources and adjusts the brightness scale of each monochromatic light source according to the matching rate of the pattern under measurement and a standard pattern to provide suitable color-mixed lights for illumination. Therefore, the present invention can provide a better measurement environment to further enhance accuracy of line-width measurement.

Abstract: A line-width measurement device and a measurement method using the same are disclosed. The line-width measurement device has a platform, an image capturing device and a color-mixing light source device. The image capturing device captures an image of a pattern under measurement in a measurement area of the platform. The color-mixing light source device correspondingly provides illumination to the measurement area. The color-mixing light source device has a plurality of monochromatic light sources and adjusts the brightness scale of each monochromatic light source according to the matching rate of the pattern under measurement and a standard pattern to provide suitable color-mixed lights for illumination. Therefore, the present invention can provide a better measurement environment to further enhance accuracy of line-width measurement.

Abstract: Mutant glycosidase enzymes are formed in which the normal nucleophilic amino acid within the active site has been changed to a nonnucleophilic amino acid. These enzymes cannot hydrolyze disaccharide products, but which can still form them. Using this enzyme, oligosaccharides are synthesized by preparing a mixture of an &agr;glycosyl fluoride and a glycoside acceptor molecule; enzymatically coupling the &agr.glycosyl fluoride to the glycoside acceptor molecule to form a glycosyl glycoside product using the mutant glycosidase enzyme; and recovering the glycosyl glycoside product. Particular enzymes include a mutant form of Agrobacterium &bgr.Glucosidase in which the normal glutamic acid residue at position 358 is replaced with an alanine residue.