After the construction of desert highway, the physiognomy changes caused by surface wind erosion and accumulation not only seriously threaten the stability of road structure, but also have a tremendous impact on the safety of the highway operation and the maintenance work on the highway.The purpose of this paper is to explore the change of sand sed
Abstract This paper discusses the paradigm of thinking of PAI teachers in the era of disruption.Science as the main capital that must be held by a teacher.In this era of disruption, of course there must be an effort to develop Islamic knowledge located in the hands of PAI teachers.A PAI teacher may be passive.He must always think, research and make
The mathematical model for providing typical parameters of the process of breaking of recoiling mass on an artillery gun is presented.The Free Card model of hydraulic brakes with some discrete distribution of orifice surfaces in the cylinder is defined.The orifice surfaces and distance between them are determined on the basis of five criteria relev
The performance of space heating and cooling systems in buildings is usually measured by applying the first law of thermodynamics, which makes it possible to quantify the energy losses of the single components and to measure their energy conversion efficiency.However, this common approach does not properly consider that different forms of energy ha
Increasing human population and reliance on aquaculture for seafood will lead to expansion of the industry in the open ocean.To guide environmentally sustainable expansion, coastal stakeholders require tools to evaluate the risks that marine aquaculture poses and to craft science-based policies and practices which safeguard marine ecosystems.We sum