According to international standards, sulfur in fuels used in the transportation industry, as
one of the most important polluting industries, should be reduced to around 10 ppmw, while …

Mathematical models can be described as a description of a system with mathematical
language. This is done by introducing the system under study with a series of equations …

In order to optimize the amount of dopant, 3 catalysts with different weight percentages of
dopant entered the test medium and it was found that the increase of silver, cerium, nickel. It …

Heavy polyethylene catalytic pyrolysis with 15% HZSM-5 catalyst was performed at 500° C
in a semi-continuous stirrer reactor under nitrogen gas. In the first experiment, about 46.7 …

There are many ways to reduce the coefficient of friction as a result of pressure drop in
internal flows and thrust force in external flows. For example, film suction, injection of gas …

Fluid molecules adhere to objects due to their viscosity when passing through them, thus
causing friction between the fluid and the body. This friction depends on the type of surface …

Pengembangan teknologi produksi minyak bumi dan aplikasi surfaktan MES (metil ester
sulfonat) untuk EOR (enhanced oil recovery) di Indonesia memiliki prospek yang sangat …

Elimination of sulfur compounds in hydrocarbon fuels is environmentally important, because
in the process of combustion of fuels in engines, sulfur compounds in the fuel are converted …

Introduction: Given the importance of reducing anxiety in patients before coronary artery
bypass grafting and the side effects that anxiety can have on the patient's recovery, the …