vapor-liquid equilibrium in nh3-co2-h2o system at high pressures has been studied. the uniquac-nrf model for this system was extended by using the goppert 4 maurer reported datas. since the system contains molecules and ionic species the binary interaction parameters considered, where those are of molecule-molecule, molecule-ion and ion-ion types. these interaction parameters are taken as const...

a method based on the genetic algorithm (ga) was developed to study the phase behavior of multicomponent and multiphase systems. upon application of the ga to the thermodynamic models which are commonly used to study the vle, vlle and lle phase equilibria, the physically meaningful values for the binary interaction parameters (bip) of the models were obtained. using the method proposed in this ...

................................................................................................................................................ 1 Chapter 1: Introduction ...................................................................................................................... 3 Chapter 2: Virtual Learning Environments 2.1: The Teaching and Learning Environment.........................

The identification of the correct thermodynamic states forming in supercritical mixing and combustion is an important area research engineering. When a multi-component mixture evolves at pressures that are higher than critical each individual component, real-gas (RG) equation state (EoS) must be used order to achieve superior accuracy predictions. However, this may not enough when complex non-l...

The adoption of virtual learning environment (VLE) has started to gain serious attention worldwide including Malaysia, where its usage during the Covid-19 pandemic outbreak become a necessity. Nevertheless, extent which teachers have adopted VLE and factors are most influencing continuance intention adopt post remain ambiguous. objective this conceptual study is provide framework in investigati...

With the advancement of information and communication technologies, teaching mathematics in a real-life classroom is combined with virtual learning environment (VLE). It important to determine how primary school teacher can use VLE collaboration tools teach students. Participants – 4th grade students ((n = 51). Access quantitative studies has been chosen for study. Methods study: Analysis scien...

Online education has attracted a large number of students in recent years, because it breaks through the limitations time and space makes high-quality at your fingertips. The method predicting student performance is to analyze predict student’s final by collecting demographic data such as gender, age, highest level, clickstream generated when interact with VLE different types specific courses, ...