Sesamin, a major lignan in sesame seeds and oil, has been known to lower blood pressure in several types of experimental hypertensive animals. A recent study demonstrated that sesamin metabolites had in vitro radical-scavenging activities. Thus, we determined whether the antioxidative effect of sesamin metabolites modulate the vascular tone and contribute to the in vivo antihypertensive effect ...

In this contribution, we study situations in which nanoparticles in a fluid are strongly heated, generating high heat fluxes. This situation is relevant to experiments in which a fluid is locally heated by using selective absorption of radiation by solid particles. We first study this situation for different types of molecular interactions, using models for gold particles suspended in octane an...

The prediction of phase equilibria for hydrocarbon/water blends in separators, is a subject considerable importance chemical processes. Despite its relevance, there are still pending questions. Among them, the correct number phases. While stability analysis using Gibbs Free Energy mixing and NRTL model, provide good understanding with calculation issues, when HYSYS V9 Aspen Plus software, this ...

Modern spark-ignition engines are knock-limited over a significant fraction of their operating map. The efficiency loss induced by knock mitigation depends on both the fuel octane quality and driving conditions. This paper quantifies relevance Research Octane Number (RON) Motor (MON) to losses (KLFEL) mid-size sports utility vehicle operated in several standard drive cycles. Index model, OI = (...

Alcohols and other low molecular weight oxygenates are known to be potentially valuable gasoline substitutes. While these are generally of interest in relation to the long-term need to secure future motor fuel supplies, there is a more urgent need for substitutes which will improve the octane rating of unleaded fuels. For environmental reasons, oxygenates including alcohols may be preferred to ...

The growth of Pseudomonas oleovorans on n-octane was characterized by the formation of intracellular structures. These inclusions were isolated and characterized. Morphologically, they resembled the poly-beta-hydroxybutyrate granules found in Bacillus cereus, as shown by freeze-fracture electron microscopy. The elemental analysis of isolated granules showed, however, that they do not contain po...

IR and Raman spectra and phase transitions have been studied on various salts of azabicyclo[2.2.2]octane (ABCO) and l,4-diazabicyclo[2.2.2]octane (DABCO) which forms with simple strong acids adducts of 2 : 1, 1 : 1 and 1 : 2 composition. Only 2 : 1 DABCO adducts form homoconjugated cations containing [NH · · · H]+ hy. drogen bonds close to symmetrical ones, showing broad absorption in the low f...