Abstract: The present disclosure provides a semiconductor structure and a manufacturing method thereof. The manufacturing method includes: providing a substrate; and forming a first metal via structure, where the first metal via structure is provided in the substrate, and a top surface of the first metal via structure is flush with a top surface of the substrate, where the top surface of the first metal via structure is made flush with the top surface of the substrate through at least a first process and a second process.

Abstract: The present invention discloses a silty marine natural gas hydrate gravel stimulation mining method and a mining device. The mining method appropriately relaxes the sand retention accuracy of a wellbore, so that the fine sand and muddy components of the stratum can flow into the wellbore, and after a certain period of production, the coarse gravels are injected into the extra-pipe stratum of the production well to fill the deficit caused by the production of the fine components of the stratum and the hydrates, and then the well is opened for production. The method achieves the triple objectives of improving the productivity of the silty reservoir, preventing the large-area deficit in the stratum and extending the effective period of the sand retention of the wellbore, by way of the alternation of the rounds of the gravel injection and the hydrate reservoir fluid extraction.

Abstract: Embodiments of the present application provide a 3D display apparatus and a method for driving the same. The apparatus includes: a backlight assembly forming bright stripes and dark stripes arranged alternately; a liquid crystal display panel displaying a left eye image of a 3D display signal by a first set of pixel units and display a right eye image by a second set of pixel units; a location tracking unit acquiring a location of a viewer; and a control unit adjusting position of the bright and dark stripes and deflection of liquid crystal of the liquid crystal display panel such that a light emitted from the bright stripes is allowed to pass through corresponding first set to be received by left eye and to pass through corresponding second set to be received by right eye respectively. Embodiments are used in manufacturing of a 3D display apparatus.

Abstract: The present invention discloses a silty marine natural gas hydrate gravel stimulation mining method and a mining device. The mining method appropriately relaxes the sand retention accuracy of a wellbore, so that the fine sand and muddy components of the stratum can flow into the wellbore, and after a certain period of production, the coarse gravels are injected into the extra-pipe stratum of the production well to fill the deficit caused by the production of the fine components of the stratum and the hydrates, and then the well is opened for production. The method achieves the triple objectives of improving the productivity of the silty reservoir, preventing the large-area deficit in the stratum and extending the effective period of the sand retention of the wellbore, by way of the alternation of the rounds of the gravel injection and the hydrate reservoir fluid extraction.

Abstract: This invention provides a flow through type ultraviolet LED disinfecting apparatus, and a top cover and an outer cylindrical body are connected by a thread; a transparent inner cup body has a water holding tank inside for containing water, and there is a water pipe at the top of cover; a depth of the inlet water pipe reaching into the water holding tank has greater efficient than tank without pipe; a pipe mouth at one end of the inlet water pipe reaching into the water holding tank corresponds to a LED disinfecting light; the outer cylindrical body is tube-shaped, a side wall body and a bottom plate; the side wall body is sleeved outside the transparent inner cup body; a bottom of the transparent inner cup body contacts with the bottom plate of the inner cylindrical body; he circuit board with LED disinfecting LED is fixed at the bottom plate.

Abstract: Provided are a flexible display device and a control method thereof. The flexible display device includes: a base substrate; a display component located on the base substrate; a top-layer cover plate, configured to package the display component; a deformation layer, configured to create a deformation to drive the flexible display device to deform; and a control element, located on the base substrate and configured to control a deformation variable of the deformation layer.

Abstract: Embodiments of the present application provide a 3D display apparatus and a method for driving the same. The apparatus includes: a backlight assembly forming bright stripes and dark stripes arranged alternately; a liquid crystal display panel displaying a left eye image of a 3D display signal by a first set of pixel units and display a right eye image by a second set of pixel units; a location tracking unit acquiring a location of a viewer; and a control unit adjusting position of the bright and dark stripes and deflection of liquid crystal of the liquid crystal display panel such that a light emitted from the bright stripes is allowed to pass through corresponding first set to be received by left eye and to pass through corresponding second set to be received by right eye respectively. Embodiments are used in manufacturing of a 3D display apparatus.

Abstract: The present invention provides a catalytic activity accelerant. The accelerant is added to stock oil for increasing the catalyst activity, the depth of catalytic hydrogenation and the yield of catalytic hydrogenation product, degrading the reaction conditions of catalytic hydrogenation, and improving the quality of product. The catalytic activity accelerant is consisted of an alkyl succinimide derivative, an alkyl phenol and a surfactant. The amount of the alkyl succinimide derivative in the accelerant is 5-70 wt. %. The amount of the alkyl phenol in the accelerant is 2-70 wt. %. The amount of the surfactant in the accelerant is 2-70 wt. %.

Abstract: The present invention provides a catalytic activity accelerant. The accelerant is added to stock oil for increasing the catalyst activity, the depth of catalytic hydrogenation and the yield of catalytic hydrogenation product, degrading the reaction conditions of catalytic hydrogenation, and improving the quality of product. The catalytic activity accelerant is consisted of an alkyl succinimide derivative, an alkyl phenol and a surfactant. The amount of the alkyl succinimide derivative in the accelerant is 5-70 wt. %. The amount of the alkyl phenol in the accelerant is 2-70 wt. %. The amount of the surfactant in the accelerant is 2-70 wt.