Air/water interfaces were modified by oppositely charged poly(sodium 4-styrenesulfonate) (NaPSS) and hexadecyltrimethylammonium bromide (CTAB) polyelectrolyte/surfactant mixtures and were studied on a molecular level with vibrational sum-frequency generation (SFG), tensiometry, surface dilatational rheology and ellipsometry. In order to deduce structure property relations, our results on the in...

resonances are intrinsic characteristics of an elastic object, which are completely independent of thesource of excitation. the appropriate utilization of the information contained within the resonancespectra and the identification of the resonance frequencies of the object can be used as a potent toolfor material characterization. in this paper, a new mathematical model for the wave diffractio...

isotherm equation is one of the important scientific bases for adsorbent selection. there are different isotherms that do not account for an adsorbate, different chemisorption geometries on the nanoporous surface. it is interesting to introduce a general isotherm, which considers different chemisorption geometries of an adsorbate on nanoporous surfaces. in this study, an isotherm for non-dissoci...

We have directly resolved in the present work interfacial composition during and after interactions of a saturated atmosphere oil vapor with soluble surfactant solutions at planar water/air interface for first time. Experiments were conducted on hexane alkyltrimethylammonium bromides sodium dodecyl sulfate to observe balance between cooperativity competition components interface. In all cases, ...

purpose: web sites are considered as an important tool on the internet and it has an important role in the utilization of students from the internet. in this study, we tried to evaluate iranian schools web sites. method: research population consists of 122 school websites. we used a check list for evaluation of school websites. findings: we found that all aspects of iranian school websites (aut...

In this work, ZnO:TiO2 nanocomposites thin films were produced, and electrical properties evaluated. Nanocomposite nanoparticles used as film source in the preparation which was produced using hydrothermal synthesis different concentrations. Spin coating process adopted of films. pure TiO2,and 1:5 1:2 concentrations prepared. Electrical composites assessed where capacitance – voltage conductanc...

recent research in the area of second language acquisition has proposed that bilinguals and l2 learners show syntactic indeterminacy when syntactic properties interface with other cognitive domains. most of the research in this area has focused on the pragmatic use of syntactic properties while the investigation of compliance with a grammatical rule at syntax-related interfaces has not received...

We study the effect of surfactants on dynamics a drop-interface coalescence using full three-dimensional direct numerical simulations. employ hybrid interface-tracking/level-set method, which takes into account Marangoni stresses that arise from surface-tension gradients, interfacial and bulk diffusion sorption kinetic effects. validate our predictions against experimental data Blanchette Bigio...

This paper investigates the effect of moisture content on interface shear strength between offshore clay and steel plate. Although, sensitive and high plasticity offshore clay deposits are widely distributed in Malaysia and many other countries in the world, and steel is a vital construction material for many structures, research works on interaction between offshore clay and steel surface are ...