10 research outputs found
Myocardial extracellular volume imaging by CMR quantitatively characterizes myocardial infarction and subclinical myocardial fibrosis
Non-contrast quantitative T1-mapping indicates that salvaged myocardium develops edema during coronary occlusion, whereas infarction exhibits evidence of additional reperfusion injury
Understanding why edema in salvaged myocardium is difficult to detect by late gadolinium enhancement
Quantitative T1-maps delineate myocardium at risk as accurately as T2-maps - experimental validation with microspheres
Myocardial extracellular volume imaging allows quantitative assessment of atypical late gadolinium enhancement
Myocardial extracellular volume imaging by CMR quantitatively characterizes myocardial infarction and subclinical myocardial fibrosis
Extracellular volume imaging by magnetic resonance imaging provides insights into overt and sub-clinical myocardial pathology
Effect of Temperature and Acid Concentration on Rhizophora mucronata Tannin as a Corrosion Inhibitor
The effect of temperature and acid concentration on a newly formulated tannin as a corrosion inhibitor for carbon steel in oil and gas facilities was investigated. Corrosion rate of carbon steel in HCl acid solutions (0, 5, 10, 15, 20, 25 and 30%) by Rhizophora mucronata tannin (RMT) was studied using chemical (weight loss method) and spectroscopic (FTIR) techniques at various temperatures in the ranges of 26–70 °C. At 20% optimum concentration of acid, the FTIR result showed the presence of hydroxyl group, aromatic group, esters and the substituted benzene group, indicating the purity of the tannin. The increase in HCl acid concentration and temperature increased the corrosion rate, but the rate of corrosion was mild with RMT. Therefore, the use of RMT as a cost-effective and environmental-friendly corrosion-inhibiting agent for carbon steel is herein proposed