System Dynamics is often used to explore issues that are characterised by uncertainties. This paper discusses first of all different types of uncertainties that system dynamicists need to deal with and the tools they already use to deal with these uncertainties. From this discussion it is concluded that stand-alone System Dynamics is often not sufficient to deal with uncertainties. Then, two ve...

Nonpotential effects in nonlinear evolution of Marangoni convection patterns are investigated analytically and numerically. Three manifestations of nonpotential effects are considered: (i) spatial modulations of hexagonal patterns; (ii) interaction between a short-scale hexagonal pattern and a long-scale slow deformational (Goldstone) mode; (iii) generation of the mean flow by the free-surface ...

System dynamics principles and analytical tools have the potential to alleviate several deficiencies in current project management analytical techniques. This paper facilitates the integration of system dynamics into project management by providing an overview of system dynamics principles, summarizing the deficiencies in current project management approaches, and presenting a causal loop diagr...

Waste electrical and electronic equipment is one of the major world-wide waste streams triggering the emergence of environmental strategies. Environmental regulations, closed-loop supply chain (CLSC) activities and design-for-environment (DfE) practices are environmental friendly strategies being implemented by governments and industry. In this paper, we apply a System Dynamics model to a CLSC ...

a mobile manipulator robot is known as a complex system due to some properties such as coupling between the manipulator and mobile chassis, holonomic and nonholonomic constraints, multivariable and nonlinear dynamics. the control of robot faces the external disturbance, parametric uncertainty and unmodeled dynamics. therefore, the use of an adaptive fuzzy system is suggested for its capability ...

Project managers are grappling with a variety of risks today as a result of increasing complexity and dynamics of projects in different stages of project life cycle. Thus, it seems quite necessary to employ an efficient risk management process that can overcome the shortcomings of traditional methods in order to handle such complexities and reach the optimal project management. This matter is e...

Over the past decade micro and nanofluidics emerged as vital tools in the ongoing drive towards the development of nano-scale analysis and manufacturing systems. Accurate numerical modelling of the phenomena involved at these scales is essential in order to speed up the industrial design process for nanotechnology. However a parameter often ignored in hybrid simulations is the uncertainty level...

The State-Dependant Riccati Equation method has been frequently used to design suboptimal controllers applied to nonlinear dynamic systems. Different methods for local stability analysis of SDRE controlled systems of order greater than two such as the attitude dynamics of a general rigid body have been extended in literature; however, it is still difficult to show global stability properties of...

The purpose of this study is to understand the reaction of real estate prices to changes in different factors. In order to achieve this, a previously developed system dynamics model of real estate prices in Istanbul has been used (Özbaş and Özgün, 2005). The model has been developed and scenario analysis is carried out to some extent. However, a structured experimental analysis of the model und...