Virtual learning environments (VLE) constitute the current information systems’ (IS) category for electronically supported corporate training and development. Frequently supposed advantages of using VLE refer, for instance, to the efficiency, individuality, ubiquity, timeliness and task orientation of learning. However, a crucial precondition of realizing such advantages is an appropriate syste...

The growth of online education along with decisions by many prominent higher education institutions to offer virtually all their classes online has altered the strategic view of online education. Today, 66% of chief academic officers consider online education critical to their long-term strategy and 67% believe outcomes from online classes are equivalent to those in face-toface classes. Hence, ...

Virtual Learning Environments (VLEs) are widespread in higher education today, typically used to deliver instructional materials and facilitate communication within a course. This study aimed to investigate the tasktechnology fit of VLEs for their two main groups of users: instructors and students, using the VLE WebCT. Tasktechnology fit, user satisfaction, attitude towards use and anticipated ...

This study evaluates the effectiveness of delivering the core curriculum of an introductory neuroscience course using a software application referred to as a virtual learning interface (VLI). The performance of students in a virtual learning environment (VLE) is compared with that of students in a conventional lecture hall in which the same lecturer presented the same material. This study was n...

This paper describes an online image analysis tool developed as part of an iterative, user-centered development of an online Virtual Learning Environment (VLE) called the Education through Virtual Experience (EVE) Portal. The VLE provides a Web portal through which schoolchildren and their teachers create scientific proposals, retrieve images and other resources, and produce collaborative scien...

During the previous decade web-based Virtual Learning Environment (VLE) has become general part of learning and curriculum. One of the most prominent virtual worlds is Second Life, because of dimensionless opportunities that result out of user created content. Many institutions such as universities, colleges and libraries have entered this 3D environment to explore its possibilities. As the Sec...

In this study, the experimental results exhibit that the mixture of water + acetic acid + methyl acetate + pxylene has interesting phase behaviors of vapor-liquid equilibrium (VLE) and vapor-liquid-liquid equilibrium (VLLE) under pressure of 101.32 kPa. The VLE and VLLE data were obtained with a condensed-vapor-phase-recirculating still as described in the text. The experimental data are useful...

In this paper, multi-angle analysis of quantitative data mining warning system is completed, by using software engineering method. The study on the core issue of early warning is conducted, during divided the learning process in VLE platforms into three stages: former learning, study of middle and after learning. The studying route of core issues is: under the mode of Windows Server Apache, MYS...

Variable-Length Encoding (VLE) is a process of reducing input data size by replacing fixed-length data words with codewords of shorter length. As VLE is one of the main building blocks in systems for multimedia compression, its efficient implementation is essential. The massively parallel architecture of modern general purpose graphics processing units (GPGPUs) has been successfully used for ac...

The blends formed mixing hydrofluorocarbons (HFC) and hydrocarbons (HC) can be classified as semi-natural refrigerants since, by optimizing the composition, it is in principle possible to adapt basic features such as GWP, TEWI and flammability to the industrial and environmental requirements. However, the energetic efficiency must be competitive with the traditional refrigerants. To evaluate th...