bibliometric, and scientometric approaches are used to provide appropriate tools for evaluating scientific products at local, national, and international levels. iran, the same as other countries, has many universities and research centers in the field of engineering that iran's most of the scientific products account for the field of engineering. this study is a descriptive approach using scie...

Authoring tools in Intelligent Tutoring Systems (ITS) are designed to make it easier for tutors the use of Artificial Intelligence tools. Authoring tools allow tutors to develop adaptive, learner-centered courses that promote interaction between students and virtual tutors. This article presents a review of Virtual Reality (VR) tools for the creation of Virtual Learning Environments (VLE). In p...

Virtual Learning Environments are a relatively new concept and little research is done to positive effects of a VLE on the learning process of children. Due to its success in conventional learning methods interactivity is often taken for granted in a successful VLE. A close study of some literature on experiments with observations of VLE’s, make clear that interactivity in a VLE can have its dr...

This paper presents preliminary results of a mobile virtual learning environment (VLE) usage study conducted at a United Kingdom (UK) distance education institution. A total of 207 undergraduate students participated in the study over a period of 6 months. Study participants were recruited through email invitation. An online survey was conducted to gather both quantitative and qualitative data ...

Liquid-liquid equilibria for the (water + lactic acid + benzyl alcohol or p-xylene) ternary systems were investigated at atmospheric pressure and in the temperature range from 298.15-318.15 K. The studied systems exhibit two types of liquid-liquid equilibrium (LLE) behavior. The system consisting of benzyl alcohol displays type-1 LLE behavior, while a type-2 behavior is exhibited by th...

This paper explores the provision of adaptive hints based on attainment levels in the context of supporting the development of young adults’ ICT information processing skills. We describe the design of the LIBE VLE, particularly its personalisation and adaptation features, and a User Study undertaken with young adults at a vocational education centre. Using data collected through the LIBE VLE, ...

The paper provides an overview of the elaboration, testing and improvement of Movelex, a complex virtual learning environment (VLE) supporting the establishment of self-regulated learning and shared knowledge building space in the classroom. The development and continuous improvement of the software has the aim to form communities of practice of teachers and students to co-operate with software...

In this study, NRTL and UNIQUAC thermodynamic models were used to predict the composition of ternary mixtures of solvents+ m/o/p-cresol+ water in organic and aqueous phases. Various solvents are used for the separation of cresols from water. In this study, methyl propyl ketone, methyl isopropyl ketone, methyl butyl ketone, and methyl isobutyl ketone solvents were investigated. Intermolecular in...