To solve the problems of dynamic model parameter perturbation and external disturbances during the operation of the ball screw meta-action unit, an adaptive sliding mode control method based on disturbance compensation and inertia identification is proposed in this paper.First, a model of the ball screw meta-action unit is established and the dynam
Stromal cell-derived factor-1 (SDF-1) and Exendin-4 (EX-4) play beneficial roles in promoting periodontal ligament stem cells (PDLSCs) osteogenic differentiation, while the detailed mechanism has not been clarified.In this study, we Supports DIY aimed to evaluate the biological mechanism of SDF-1 and EX-4 alone or synergistic application in regulat
The purpose of the study is to analyze the impact of the taxation structure in Russia on the differentiation of the living standard of the population.The relevance of this problem lies in the fact that the future development of the country depends on the level and quality of life of citizens.With the help of comparative analysis, the positive and n
In this study, it is attempted to scrutinize the global minimum energy structure of anti-blood cancer drug 4-(Bis(2-chloroethyl)amino)-L-phenylalanine (4B2CA-LPA) and functionalized density functional theory (DFT) calculations regarding their geometries, topological features of covalent, non-covalent interactions with employing Atoms in molecule (A
Tourism has become a major contributing sector in the economies of many countries in the world, especially Indonesia.The attractiveness of Indonesia comes from a variety of potential such as nature, local wisdom, or artificial.Those attractions make tourist can be defined as many types based on their motives and activities.This research used mixed