Abstract: The present application provides a preparation method for iridium nanocrystal, including the following steps: mixing an iridium salt, an alcohol solvent and a centrifugal waste liquid to form a mixed solution, and adding an alkali solution in an inert atmosphere for a heating reaction. After centrifugation, an iridium nanocrystal is obtained. The centrifugal waste liquid is a waste liquid produced in the pre-synthesis process of iridium nanocrystal. The preparation method can shorten the reaction time, and the obtained iridium nanocrystal has the advantages of high yield and low cost.

Abstract: The present invention provides a point cloud data acquisition method and device under a situation of no GNSS signal. The method comprises: re-sampling line data acquired from a topographic map to obtain discrete line data; generating a full-second PPS pulse in a simulating manner; counting by using a distance measuring instrument, sampling the count, when it is detected that the full-second PPS pulse is received, calculating position information at a current moment; simulating a GNSS satellite protocol according to the position information at the current moment; parsing the GNSS satellite protocol by using a point cloud data acquisition module to complete time synchronization, and controlling a LiDAR to acquire point cloud data; parsing the GNSS satellite protocol by using an inertial measurement module, and recording attitude determination positioning data in real time to generate POS data; and optimizing the POS data to obtain accurate point cloud data.

Abstract: A die adjustment mechanism, includes a base, the base is provided with a die that can apply pressure on the workpiece. The die includes multiple modules arranged sequentially and capable of sliding laterally relative to the base. The base is further provided with a slide rest/slide rests capable of sliding laterally relative to the base. Each slide rest is provided with a shifting fork which can be clamped with a module or can be clamped between two adjacent modules. Each slide rest is provided with a drive component capable of driving the shifting fork to be clamped with the module or be clamped between the two adjacent modules. Using this mechanism, bending and pressing of multiple sides of the metal plate can be completed by the same machine and the production efficiency is greatly improved.

Abstract: A bending machine including a rack, the rack is provided with a feeding mechanism, one side of the feeding mechanism is provided with a pressing mechanism capable of pressing a workpiece firmly, and one side of the pressing mechanism is provided with a bending mechanism capable of bending the workpiece inside the bending mechanism. The bending machine is simple in structure, high in production and capable of reducing labor cost.

Abstract: The present invention provides a point cloud data acquisition method and device under a situation of no GNSS signal. The method comprises: re-sampling line data acquired from a topographic map to obtain discrete line data; generating a full-second PPS pulse in a simulating manner; counting by using a distance measuring instrument, sampling the count, when it is detected that the full-second PPS pulse is received, calculating position information at a current moment; simulating a GNSS satellite protocol according to the position information at the current moment; parsing the GNSS satellite protocol by using a point cloud data acquisition module to complete time synchronization, and controlling a LiDAR to acquire point cloud data; parsing the GNSS satellite protocol by using an inertial measurement module, and recording attitude determination positioning data in real time to generate POS data; and optimizing the POS data to obtain accurate point cloud data.

Abstract: A bending machine including a rack, the rack is provided with a feeding mechanism, one side of the feeding mechanism is provided with a pressing mechanism capable of pressing a workpiece firmly, and one side of the pressing mechanism is provided with a bending mechanism capable of bending the workpiece inside the bending mechanism. The bending machine is simple in structure, high in production and capable of reducing labor cost.

Abstract: A die adjustment mechanism, includes a base, the base is provided with a die that can apply pressure on the workpiece. The die includes multiple modules arranged sequentially and capable of sliding laterally relative to the base. The base is further provided with a slide rest/slide rests capable of sliding laterally relative to the base. Each slide rest is provided with a shifting fork which can be clamped with a module or can be clamped between two adjacent modules. Each slide rest is provided with a drive component capable of driving the shifting fork to be clamped with the module or be clamped between the two adjacent modules. Using this mechanism, bending and pressing of multiple sides of the metal plate can be completed by the same machine and the production efficiency is greatly improved.

Abstract: This invention relates to a continuous process for making a polymer polyol, the polymer polyol produced according to the said process and its applications.

Abstract: Stabiliser, comprising the reaction product of at least one macromer with at least one C4-30-alkyl(meth)acrylate in at least one polyether polyol 1 in the presence of at least one free radical polymerisation catalyst and optionally at least one chain transfer agent, the at least one macromer being at least one molecule which comprises in its structure one or more polymerisable double bonds, able to copolymerise with C4-30-alkyl(meth)acrylates and which furthermore comprises in its structure one or more hydroxyl-terminated polyether chains.

Abstract: This invention relates to a continuous process for making a polymer polyol, the polymer polyol produced according to the said process and its applications.

Abstract: A method for surface treating a substrate includes following steps. Firstly, a substrate including a metallic surface capable of being electroplated with a metal coating is provided. Secondly, a first metal coating is electroplated onto the metallic surface of the substrate. Thirdly, an oxidized metal film is formed to cover the first metal coating. The first metal coating of substrate is blasted using quartz sand. The oxidized metal film is removed from the first metal coating. The second metal coating is electroplated onto the first metal coating.

Abstract: The present invention provides a controlling apparatus and method for an image scanning system that includes a direct current (DC) motor and an image sensor driven by the DC motor to move. A position signal representative of the position associated of the image sensor is generated and the controlling apparatus and method is performed according to the position signal.

Abstract: The present invention provides a controlling apparatus and method for an image scanning system that includes a direct current (DC) motor and an image sensor driven by the DC motor to move. A position signal representative of the position associated of the image sensor is generated and the controlling apparatus and method is performed according to the position signal.