For an adequate choice or design of ionic liquids, the knowledge of their interaction with other solutes and solvents is an essential feature for predicting the reactivity and selectivity of systems involving these compounds. In this work, the activity coefficient of water in several imidazolium-based ionic liquids with the common cation 1-butyl-3-methylimidazolium was measured at 298.2 K. To c...

Variegate porphyria (VP) is characterized by photocutaneous lesions and acute neuropsychiatric attacks. Decreased protoporphyrinogen oxidase activity results in accumulation of protoporphyrin (ogen) IX and coproporphyrin (ogen) III. During acute attacks delta-aminolevulinic acid and porphobilinogen also increase, suggesting that porphobilinogen deaminase (PBG-D) may be rate limiting. We have ex...

0-3 composites of lead zirconate titanate particles dispersed in a polyvinylidene fluoridetrifluoroethylene copolymer matrix may have a good potential for pyroelectric sensor applications. Thermal expansion mismatch together with the piezoelectric activity of the constituents produces a secondary pyroelectric effect in a composite. A model for this secondary effect in 0-3 composites has been de...

students are a large portion of the youth in the society and it is important to pay attention to their general health. the aim of this study was to explain the role of physical activity in social well-being of students in universities of kermanshah city. this study was a descriptive-correlation conducted as a cross sectional study. two questionnaires of keyes's social well-being (1998) and...

A new element- and chemical bond-dependent GE-EoS model(SRK-UNICAC) is proposed to consider the deviation of vapor liquid phases from ideal state. The SRK-UNICAC model combines UNICAC SRK cubic equation It uses original interaction parameters this calculate GE. predicted vapor-liquid equilibria for 87 binary systems under low- medium-pressure conditions, 12 high-pressure 14 ternary systems; a c...

Abstract It is important to clarify the behavior of elements in reaction between molten CaO–SiO 2 –Fe t O–Al O 3 slag and liquid metal during remelting Cu scrap. To estimate desirable composition for retaining Sn metal, effects basicity concentrations Fe Al on SnO activity coefficient were investigated. Molten (with optional addition) was reacted with Pb–Sn alloy a pure crucible at 1573 K 5 h w...