In this paper, starting from the foaming amount, half-life and other indicators, the surfactant with excellent performance is optimized, and the optimal compound ratio and appropriate foam stabilizer, viscosity enhancer, and additives are studied.A new type of foam agent formula for the EPB shield is developed.The performance of the new foam agent
In many different development projects, we need to minimize construction costs and usable area according to the design constraints assigned to each project.The aim of the research is to contrive a mathematical model for men firefighter costume calculating the dimensions and sizes of rooms in a residential plan to get the least cost and manage the r
Purpose.To prove the impossibility of the disappearance of the phenomenon of religiosity in society and the obvious facts of the influence of religion on the processes of formation and development of law.Method.The methodology includes a comprehensive analysis of many historical sources and the conclusion that religion is in fact the spiritual crad
This paper discusses two types of constructions in Norwegian where a combination of a verb of motion and a prepositional phrase are ambiguous between a reading of directed motion and a reading of located motion.Based on the differences in the syntactic behaviour of the two types of constructions with respect to a variety of tests (viz.VP constituen