SPAID-An Interactive Data Analysis Package and It's Application to the Identification of an Electric Arc Furnace Control System

The design of an efficient control strategy will usually require a suitable model representing both the steady-state and dynamic performance of the process. In most practical problems the complexity of the process usually dictates a complicated theoretical model which is not readily compatible with the need to design simple regulators. However, the majority of high order and stochastic effects that characterise the operation of a large dynamic complex system can frequently be represented in terms of simple dynamic models which can be readily used to design suitable controllers. Identification can often be used to estimate such models from input/output data records and gives further knowledge and insight of the process and its environment. Effective data handling and estimation programs are necessary for efficient identification and the present study describes the development of an identification package SPAID-Sheffield Package for the Analysis and Identification of Data. The package which has been written for a CONPAC 4020 process computer, consists of several suites of programs for logging, data handling and modification, parameter estimation, model validity tests, simulation and plotting. The programs are interactive via a graphics display terminal with user intervention to control the identification procedure. Operational data from a production electric arc furnace is analysed and properties of the arc discharge, interaction between the regulators and a difference equation model of the electrode position controller are identified

MOLNs: A cloud platform for interactive, reproducible and scalable spatial stochastic computational experiments in systems biology using PyURDME

Computational experiments using spatial stochastic simulations have led to important new biological insights, but they require specialized tools, a complex software stack, as well as large and scalable compute and data analysis resources due to the large computational cost associated with Monte Carlo computational workflows. The complexity of setting up and managing a large-scale distributed computation environment to support productive and reproducible modeling can be prohibitive for practitioners in systems biology. This results in a barrier to the adoption of spatial stochastic simulation tools, effectively limiting the type of biological questions addressed by quantitative modeling. In this paper, we present PyURDME, a new, user-friendly spatial modeling and simulation package, and MOLNs, a cloud computing appliance for distributed simulation of stochastic reaction-diffusion models. MOLNs is based on IPython and provides an interactive programming platform for development of sharable and reproducible distributed parallel computational experiments

The future of technology enhanced active learning – a roadmap

The notion of active learning refers to the active involvement of learner in the learning process, capturing ideas of learning-by-doing and the fact that active participation and knowledge construction leads to deeper and more sustained learning. Interactivity, in particular learnercontent interaction, is a central aspect of technology-enhanced active learning. In this roadmap, the pedagogical background is discussed, the essential dimensions of technology-enhanced active learning systems are outlined and the factors that are expected to influence these systems currently and in the future are identified. A central aim is to address this promising field from a best practices perspective, clarifying central issues and formulating an agenda for future developments in the form of a roadmap

rpanel: Simple Interactive Controls for R Functions Using the tcltk Package

In a variety of settings it is extremely helpful to be able to apply R functions through buttons, sliders and other types of graphical control. This is particularly true in plotting activities where immediate communication between such controls and a graphical display allows the user to interact with a plot in a very effective manner. The tcltk package provides extensive tools for this and the aim of the rpanel package is to provide simple and well documented functions which make these facilities as accessible as possible. In addition, the operations which form the basis of communication within tcltk are managed in a way which allows users to write functions with a more standard form of parameter passing. This paper describes the basic design of the software and illustrates it on a variety of examples of interactive control of graphics. The tkrplot system is used to allow plots to be integrated with controls into a single panel. An example of the use of a graphical image, and the ability to interact with this, is also discussed.

Generative feature-based design-by-constraints as a means of integration within the manufacturing industry

The article examines the development of computer aids within manufacturing industry and proposes an alternative approach to the way we design and the designer's role within manufacturing. A feature-based generative design-by-constraints approach is applied, which requires the designer to specify solutions in terms of manufacturing data, which is captured by means of an interactive simulation of machining processes, in which the constraints of equipment, materials and tools are displayed to the designer. The effect of this approach on the integration of all areas within a manufacturing environment is explored, as is the simultaneous design nature of this approach

Interactive Multimedia Teaching of Accounting Information System (AIS) Cycles: Student Perceptions and Views.

This paper describes the design and development of a CD ROM intended to assist students' learning by bringing a sense of reality to the concepts studied in relation to Accounting Information Systems cycles. The educational design is underpinned by constructivist theories of learning which espouse the benefits of experiential learning in facilitating effective student learning. Three Australian companies - Warner Bros. Movie World, Golden Circle and Zupps Parts – are featured on the CD ROM to provide virtual 'experiential learning experiences' for students. An extensive evaluation of the CD ROM was conducted, involving both qualitative and quantitative methodologies, to ascertain students' perceived value of the CD ROM in assisting their learning. Results indicate that the CD ROM offered students a real life understanding of applicable concepts and that students were receptive to learning in online environments which are appropriately designed and constructed

Genuine lab experiences for students in resource constrained environments: The RealLab with integrated intelligent assessment.

Laboratory activities are indispensable for developing engineering skills. Computer Aided Learning (CAL) tools can be used to enhance laboratory learning in various ways, the latest approach being the virtual laboratory technique that emulates traditional laboratory processes. This new approach makes it possible to give students complete and genuine laboratory experiences in situations constrained by limited resources in the provision of laboratory facilities and infrastructure and/or where there is need for laboratory education, for large classes, with only one laboratory stand. This may especially be the case in countries in transition. Most existing virtual laboratories are not available for purchase. Where they are, they may not be cost friendly for resource constrained environments. Also, most do not integrate any form of assessment structure. In this paper, we present a very cost friendly virtual laboratory solution for genuine laboratory experiences in resource constrained environments, with integrated intelligent assessment