Following the work of Austgen et al., the electrolyte nonrandom-two-liquid (NRTL) model was applied in a thermodynamically consistent manner to represent the vapor-liquid equilibrium (VLE) of the aqueous monoethanolamine (MEA)-CO2 system with rigorous chemical equilibrium consideration. Special attention was given to the accurate VLE description of the system at both absorbing and stripping con...

Isobaric vapor-liquid equilibrium (VLE) data for binary system of water + 2-azido-N,N-dimethylethanamine (DMAZ) was measured at 4 kPa. The results showed an azeotropic point x1 = 0.985 and T 302.17 K. correlated with nonrandom two-liquid (NRTL), Wilson universal quasi-chemical activity coefficient (UNIQUAC) models the liquid phase. A comparison model performances made using criterion average ab...

An improved understanding of the Non-Random Two Liquid model can improve correlation vapor liquid equilibrium (VLE) phase behavior beyond trial-and-error approach often employed. This work provides a rigorous, systematic evaluation model’s capabilities to contribute unqualified, component-independent findings and recommendations─a limitation previous studies. First, evaluations isobaric isother...

This paper describes the development and implementation of a first year undergraduate law module which has been redesigned to enable the embedding of Personal Development Planning (PDP) within the curriculum. The module has been delivered through a combination of both face-to-face classroom and online activities using a virtual learning environment (VLE). The institutional background consists o...

iSocial is an internet-based 3D-Virtual Learning Environment (VLE) to support social and behavioral outcomes for youth with Autism Spectrum Disorders (ASD). The purpose of developing this system is to expand access to specialized training for developing social competence. iSocial seeks to adapt and implement in a 3D-VLE a clinic-based curriculum with demonstrated impact for improving social com...

One educational development approach at Liverpool John Moores University (JMU) from it’s Business School (LBS) is that of supported Virtual Learning Environments (VLE’s) to complement traditional teaching. This paper focuses on recent work at LBS concerning a Masters module that has had its VLE support progressively developed since 1998. Module delivery is flexible in that it is variably credit...

Learning analytics is the analysis of electronic learning data which allows teachers, course designers and administrators of virtual learning environments to search for unobserved patterns and underlying information in learning processes. The main aim of learning analytics is to improve learning outcomes and the overall learning process in electronic learning virtual classrooms and computer-sup...

The empirical success of the Peng-Robinson equation of state (PREOS) is unmatched; there is no other simple equation of state of the van der Waals form that has shown such wide and reliable applicability to the calculation of vapor-liquid equilibria (VLE) for systems containing light hydrocarbons, permanent gases, carbon dioxide, and hydrogen sulfide. PREOS is one of the great success stories o...

Virtual learning environments (VLEs) may possess many advantages over traditional teaching methods in skills training that offer empowerment of constructing the skills by freely exploring a VLE. However, a conflict between the free exploration and ensuring the learning tasks tackled emerges in the learning process. A strategy to balance the conflict is to employ virtual tutoring agents to scaff...