Abstract: A three-dimensional scanning ranging device, including: an optical scanning chip (1), a focusing lens (2), a light receiving element (3) and a microprocessor, wherein the optical scanning chip (1) may be used for sequentially scanning and outputting line-shaped light spots of a plurality of scanning angles onto a to-be-measured object, the focusing lens (2) may be used for sequentially focusing a plurality of light beams reflected from the to-be-measured object under irradiation of the line-shaped light spots, the light receiving element (3) may be used for sequentially receiving the plurality of light beams after being focused by the focusing lens (2) so as to obtain multiple images containing a bright spot, the microprocessor may be used for analyzing, on the basis of a first relationship between the bright spot and a depth of the to-be-measured object at different scanning angles and in different pixel rows, the multiple images containing a bright spot so as to obtain a three-dimensional point cloud of the

Abstract: Disclosed by the present application are an array coherent ranging chip and a system thereof. The chip includes a modulated light source unit (101), an on-chip emission unit (102) and a reception array (103). The modulated light source unit (101) is used for generating a modulated light beam and splitting the modulated light beam into signal light and reference light, and then outputting the signal light and the reference light. The on-chip emission unit (102) is used for irradiating the signal light onto a target object at a preset divergence angle so as to have the signal light reflected to form multi-angle signal light. The reception array (103) is used for receiving the reference light and the multi-angle signal light and respectively performing conversion and detection on both the reference light and the signal light of each angle so as to obtain a plurality of ranging signals.

Abstract: Autonomous detection of damage in a polymer coating is described by utilizing microcapsules in a polymer coating having free and/or residual amines. The microcapsules contain a color indicator, such as 2?,7?-dichlorofluorescein (DCF), bromophenol blue (BPB) or fluorescamine, which is reactive with the free and/or residual amines present in the polymer coating. For coatings without the presence of free and/or residual amines, a color indicator microcapsule can be combined with a second type of microcapsule filled with a base. When sufficient damage is inflicted to the coating, the microcapsules in and/or around an area of the damage will rupture, and the color indicator will react with the free and/or residual amines or the base to autonomically indicate the area in which the coating has been damaged.

Abstract: Autonomous detection of damage in a polymer coating is described by utilizing microcapsules in a polymer coating having free and/or residual amines. The microcapsules contain a color indicator, such as 2?,7?-dichlorofluorescein (DCF), bromophenol blue (BPB) or fluorescamine, which is reactive with the free and/or residual amines present in the polymer coating. For coatings without the presence of free and/or residual amines, a color indicator microcapsule can be combined with a second type of microcapsule filled with a base. When sufficient damage is inflicted to the coating, the microcapsules in and/or around an area of the damage will rupture, and the color indicator will react with the free and/or residual amines or the base to autonomically indicate the area in which the coating has been damaged.

Abstract: Autonomous detection of damage in a polymer coating is described by utilizing microcapsules in a polymer coating having free and/or residual amines. The microcapsules contain a color indicator, such as 2?,7?-dichlorofluorescein (DCF), bromophenol blue (BPB) or fluorescamine, which is reactive with the free and/or residual amines present in the polymer coating. For coatings without the presence of free and/or residual amines, a color indicator microcapsule can be combined with a second type of microcapsule filled with a base. When sufficient damage is inflicted to the coating, the microcapsules in and/or around an area of the damage will rupture, and the color indicator will react with the free and/or residual amines or the base to autonomically indicate the area in which the coating has been damaged.

Abstract: An autonomic self-indicating material is provided, the material comprising a polymer composition or a composite material embedded with a microcapsule or a vascular structure comprising an aggregation-induced emission (AIE) luminogen. Upon mechanical damage to the material, the luminogen is released and aggregates, leading to fluorescence.

Abstract: An autonomic self-indicating material is provided, the material comprising a polymer composition or a composite material embedded with a microcapsule or a vascular structure comprising an aggregation-induced emission (AIE) luminogen. Upon mechanical damage to the material, the luminogen is released and aggregates, leading to fluorescence.

Abstract: Autonomous detection of damage in a polymer coating is described by utilizing microcapsules in a polymer coating having free and/or residual amines. The microcapsules contain a color indicator, such as 2?,7?-dichlorofluorescein (DCF), bromophenol blue (BPB) or fluorescamine, which is reactive with the free and/or residual amines present in the polymer coating. For coatings without the presence of free and/or residual amines, a color indicator microcapsule can be combined with a second type of microcapsule filled with a base. When sufficient damage is inflicted to the coating, the microcapsules in and/or around an area of the damage will rupture, and the color indicator will react with the free and/or residual amines or the base to autonomically indicate the area in which the coating has been damaged.

Abstract: The present invention relates to a method for producing lubricating base oil with a low cloud point and a high viscosity index. In the method, a lubricating base oil with a low pour point, a low cloud point and a high viscosity index is produced by a hydrorefining-isomerization/asymmetrical cracking-hydrofinishing in the presence of hydrogen, wherein a highly waxy heavy fraction oil having an initial boiling point of 300° C. to 460° C., a wax content of 5% or more, a pour point of ?20° C. or more and a cloud point of ?5° C. or more is used as a raw material, and naphtha and middle fraction oil being co-produced. The method is characterized mainly in the high yield of heavy base oil, a low pour point and cloud point, a high viscosity and viscosity index of the base oil.