3results about How to "Maximize durability" patented technology

An apparatus for processing a substrate and a substrate processing method are provided, the apparatus including a processing vessel having a processing space; a support unit for supporting and rotating a substrate in the processing space; a liquid supply unit for supplying a processing liquid to the substrate supported by the support unit; and a heating unit for heating the substrate, wherein the support unit includes a spin chuck; a rotation driver for rotating the spin chuck; a chuck pin mounted on the spin chuck so as to rotate together with the spin chuck; and a chuck pin moving unit for moving the chuck pin between a contact position in which the chuck pin is in contact with a side portion of the substrate and an open position in which the chuck pin is spaced apart from the side portion of the substrate, and the chuck pin moving unit moves the chuck pin while the substrate is rotated by the spin chuck.

The application discloses an artificial turf grass planting process parameter regulation and control system and method based on big data, relates to the grass planting height and area measurement field, and optimizes the process of the artificial turf from the initial height and initial area of the grass planted in the artificial turf, so that the endurance time of the artificial turf is maximized. Wherein, by constructing a height difference mapping model and an area difference mapping model, a mapping model is provided for the difference before and after the influence of natural factors and human factors on the grass planting height and area of each sub-region in the artificial turf area to be laid, and then the final value of the grass planting height can be calculated from the initial value of the grass planting height, so that whether the initial value of the set grass planting height and area meets the requirements is determined according to the final value of the grass planting height and area of the artificial turf to be laid, and optimization is further performed.

This invention relates to the field of construction, specifically to a method for constructing a pressure-bearing composite chamber anchor bolt, comprising the following steps: S1, locating drilling points in the soil layer; S2, drilling holes in the soil layer; S3, placing the anchor bolt into the drilled hole; S4, grouting the chamber of the anchor bolt to expand it, and grouting into the drilled hole; S5, after grouting, applying prestress to the anchor bolt; S6, completing the construction. This invention can calculate the optimal prestress locking value applied to the anchor bolt under different working conditions during anchor bolt construction, thereby maximizing the strength and durability of the anchor bolt.