Background: An effective polymer gel dosimeter can be fabricated by varying the composition of its chemical components. Materials and Methods: The MAGAT gel dosimeter formulations that used different compositions of Methacrylic acid (MAA) and gelatin were extensively investigated in the present study according to the R2–dose response and R2–dose sensitivity. The irradiation of M...

Recently, a combination between simulation and optimisation has been important for many of HVAC design problems. Long execution time is usually needed for one simulation run; consequently huge time will be required for the optimisation process. The aim of this study is to evaluate how combinations between optimisation algorithms can achieve faster and/or better solutions for multiobjective opti...

In many application domains, optimisation and other analytic models are often embedded as a decision engine within the respective business processes. In this paper, we study recent trends in the provision of optimisation tools and optimisation-based decision support systems (DSS) as web-enabled distributed applications. We analyse the evolution from the Application Service Provision (ASP) model...

The field of optimisation is still not appropriately covered in modern computer programs for circuit analysis as SPICE. It was originally developed at the University of California at Berkeley. The last official release of SPICE 3f4 was published in 1992. It has numerous bugs, mainly memory leaks. In order to implement optimisation methods most bugs were tracked down and fixed. Several well-know...

1. Abstract In the past decades evolutionary algorithms have been successfully applied to various design optimisation problems. It has been shown that the representation of the problem is crucial for a high performance of the method. One important aspect is the trade-off between the demands for a high geometric variability in shape generation and a minimum number of optimisation parameters. In ...

H-optimisation (Givens, 1997; 1999a; Givens et al. 1999) and U-optimisation (Witting , 1999)|two methods for optimising Strike Limit Algorithms|are compared on theoretical principles and simple examples. Despite some appealing and innovative features, U-optimisation is not a reliable method in its current formulation. Two new H-optimisation strategies are described which incorporate the most ap...

This paper presents a study on parameterisation methods for airfoil shape optimisation within a CAD-based design optimisation framework. The objective of the paper is to study the effect of different methods on airfoil shape optimisation when using computational fluid dynamics (CFD). Parameterisation of geometry is one of the essential requirements in shape optimisation, and it presents further...

The aim of this paper is to present an application and a framework using evolutionary algorithms like Genetic algorithms (GA) for solving real-life design optimisation problems. The application is centred around an engineering optimisation toolbox applied to the design optimisation of gas turbine combustor. This toolbox can handle high-dimensional problems and ease the computational cost of sim...

We present a constrained shape optimisation problem solved via metaheuristic stochastic techniques. Genetic Algorithms are briefly reviewed and their adaptation to surface topography optimisation is studied. An application to flow optimisation issues is presented.

The backtesting and optimisation of trading strategies has emerged as an interesting research and experimental problem in both finance and Information Technology (IT) fields. However, it is a non-trivial task to effectively and efficiently optimise trading strategies, not to mention the optimisation in the real-world situations. This paper discusses the application of evolutionary technologies ...