We study the dynamics of two three-level atoms interacting with independent bosonic Lorentzian reservoirs at zero temperature. Such systems can be created in far astronomical objects. Quantum mechanical behaviour of these particles can produce detectable effects on the spectroscopic identifications of these objects, if such behaviour remain stable during the interaction with their media. It is ...

If System Dynamics (SD) models are constructed based solely on decision makers' mental models and understanding of the context subject to study, then the resulting systems must necessarily bear some degree of deficiency due to the subjective, limited, and internally inconsistent mental models which led to the conception of these systems. As such, a systematic method for constructing SD models c...

Cyber-attacks targeting high-profile entities are focused, persistent, and employ common vectors with varying levels of sophistication to exploit social-technical vulnerabilities. Advanced persistent threats (APTs) deploy zero-day malware against such targets gain entry through multiple security layers, exploiting the dynamic interplay vulnerabilities in target network. System dynamics (SD) off...

In this paper, a new analytical method to find a near-optimal high gain controller for the non-minimum phase affine nonlinear systems is introduced. This controller is derived based on the closed form solution of the Hamilton-Jacobi-Bellman (HJB) equation associated with the cheap control problem. This methodology employs an algebraic equation with parametric coefficients for the systems with s...

This paper is the first of its type in that it provides an empirical study comparing the two simulation approaches of Discrete-Event Simulation (DES) and System Dynamics (SD). Prior comparison work is limited and mostly based on the authors‟ personal opinions. In the present work the comparison is based on managers‟ (executive MBA students) perceptions of two simulation models of the same probl...

The complexity and characteristics of the pharmaceutical firm present an intriguing context for underlying information management issues during clinical trials for new drug development. This paper reports on the evaluation and performance of MIS for information management in clinical trials in new drug development. The main objective of the study is to examine the economic and business impacts ...

We present one of the first actual applications of Multi Agent-Based Simulation (MABS) to the field of software process simulation modelling (SPSM). Although there are some recent attempts to do this, we argue that these fail to take full advantage of the agency paradigm. Our model of the software development process integrates individual-level performance, cognition and artefact quality models...

We present a fiber-optic low-coherence imaging technique, termed spectral-domain differential interference contrast microscopy (SD-DIC), for quantitative DIC imaging of both reflective surfaces and transparent biological specimens. SD-DIC combines the common-path nature of a Nomarski DIC interferometer with the high sensitivity of spectral-domain low-coherence interferometry to obtain high-reso...

Despite the developments in Modelling and Simulation (M&S) tools and techniques over the past years, there has been a gap in the M&S research and practice in healthcare on developing a toolkit to assist the modellers and simulation practitioners with selecting an appropriate set of techniques. This study is a preliminary step towards this goal. This paper presents some results from a systematic...