Abstract: Disclosed are a shield tunnel segment structure and a construction method thereof. The shield tunnel segment structure includes segment blocks sequentially spliced in a circumferential direction. Each segment block forms a closed annular segment structure, and outer diameters of adjacent annular segment structures gradually increase in an axial direction. At least two adjacent segment blocks of the same annular segment structure form an annular inner groove, and at least one segment block of the adjacent annular segment structures is provided with an inner bump which matches the annular inner groove. At least two adjacent segment blocks of the same annular segment structure form an annular outer groove, and at least one segment block of the adjacent annular segment structures is provided with an outer bump which matches the annular outer groove. The annular outer grooves and the annular inner grooves are staggered in the circumferential direction.

Abstract: The present invention discloses a Web-side real-time hybrid rendering method, device and computer equipment combined with ray tracing. The method includes acquiring three-dimensional scene data and the textures transformed according to the three-dimensional scene data; for the part with slow convergence speed and low frequency of rendering result, employ rasterization rendering according to the three-dimensional scene data; for the part with fast convergence speed and high-frequency rendering results, employ ray tracing rendering according to the texture; according to the rasterization rendering result and/or the ray tracing rendering result, the rendering results of the current frame and the historical frame are mixed. In this way, the problem of low rendering realism on the Web-side was solved, and high-quality global illumination effects can be achieved on the Web-side at a relatively low cost, which enhances the realism of rendering on the Web-side.

Abstract: Aqueous dispersions and uses for the same. The aqueous dispersion includes a component (a) of one or more ethylene-vinyl ester copolymers and a component (b) of one or more protective colloids. The aqueous dispersion may optionally a component (c1) of one or more nonionic surfactants and/or a component (c2) of one or more ionic surfactants. Where a total amount of the component (b) is less than or equal to 2.2 pphm, preferably between 1-2.2 pphm, or more preferably 1.8 pphm. Additionally, where a total amount of the component (c1) and the component (c2) is less than 0.1 pphm, preferably less than or equal to 0.01 pphm.

Abstract: Aqueous dispersions and uses for the same. The aqueous dispersion includes a component (a) of one or more ethylene-vinyl ester copolymers, a component (b) of one or more protective colloids, a component (el) of one or more nonionic surfactants, and a component (d) of one or more dispersants, selected from polycarboxylates. Where an amount of the component (b) and the component (c1) is less than or equal to 3.4 pphm, preferably between 1-3.4 pphm, more preferably between 2-3.1 pphm. Where the weight ratio of an amount of the component (b) to the component (el) is between 1.01-2 and an amount of the component (d) is less than or equal to 1 pphm. The component (b) is polyvinyl alcohol (PVOH).

Abstract: The present invention discloses a WebGL-based replaceable model hybrid rendering display method, comprising the following steps: the cloud processing subsystem decomposes the original scene rendering image into a background rendering image and a 3D model of the default product, and generates a 3D model of the alternative product that replaces the default product, and stores and associate the background rendering image; the rendering engine of the terminal display subsystem loads the background rendering image based on the real-time rendering technology of WebGL, and dynamically loads and renders the 3D model of the default product or the 3D model of the selected alternative product on the background rendering image to form an image with collocation effect and display. The present invention also discloses a computer readable storage medium.

Abstract: The present invention discloses a Web-side real-time hybrid rendering method, device and computer equipment combined with ray tracing. The method includes acquiring three-dimensional scene data and the textures transformed according to the three-dimensional scene data; for the part with slow convergence speed and low frequency of rendering result, employ rasterization rendering according to the three-dimensional scene data; for the part with fast convergence speed and high-frequency rendering results, employ ray tracing rendering according to the texture; according to the rasterization rendering result and/or the ray tracing rendering result, the rendering results of the current frame and the historical frame are mixed. In this way, the problem of low rendering realism on the Web-side was solved, and high-quality global illumination effects can be achieved on the Web-side at a relatively low cost, which enhances the realism of rendering on the Web-side.