This work presents a numerical simulation of the hydrogen assisted cracking process in the API 5CT P110 steel, under the effect of hydrogen produced in cathodic protection systems. This steel is used in risers for oil ...

Solid waste deemed hazardous, although they may be present in small amounts in the composition of Municipal Solid Waste (MSW), feature importance, since they contribute to toxicity of the ...

The neoplasias are a group of disorders characterized by an abnormal mass of tissue which has uncontrolled and excessive growth when compared to normal tissue. According to their biological behavior, they can be classified ...

Materials with potential for application in photocatalysis has been studied since the mid 70's, so know the structure and morphology of these materials is of fundamental importance to obtain new materials or improve the ...

The objective of this research was to obtain two zirconia by combustion reaction (named ZS and ZSY), evaluating two impregnation methods of the sulfate ion on the surface of the synthesized zirconia sample (ZS), in order ...

Worldwide, much attention has been focused on the use of biomass for the production of so-called "engineering materials". Among the variety of products, biodiesel occupies a prominent position, not only in terms of quantity ...

The objective of this study is to evaluate the influence the type of precursor, source of iron ions, and its concentration in the doping Zn1-xFexO system in order to obtain a product with ferromagnetism at room temperature ...

In Brazil, the welding pipes still uses manual processes with coated electrodes, however, research has grown to implementing more productive processes, and complying with the requirements of specific ...

In this work a preliminary study by torque rheometry of the interactions between the poly (ethylene terephthalate) terminal reactive groups and the functional groups of six copolymers (EBAgMA, EGMA, EMAGMA, PEgAA, PEgMA ...

The purpose of this work is to evaluate the influence of the physical and chemical properties of carboxymethylcelluloses (CMC) on filtration properties of polymeric drilling fluids. The study was accomplished in three ...