Gap solitons refer to intense nonlinear optical pulse propagation in periodic variation fiber. This paper is a brief survey and updates some of recent research in gap solitons. The theory of gap solitons by D.Mills [1] has been reviewed. The first experiment demonstration of gap (Bragg) solitons by Eggleton et al [2] has been discussed.

As discussed in Section 3 of the main paper, the KG policy posseses several optimality and convergence properties. First, it is optimal by construction when N = 1 (Remark 1). Second, the suboptimality gap between the values of the KG and the optimal policies narrows to 0 as N →∞ (Theorem 4). This is a convergence result, since it shows that when sampling under the KG policy we are guaranteed to...

CHORUS is a Coordination Action, a specific type of project funded by the European commission under its research programmes, intended to bring together research projects with common goals, in the field of search technologies for digital audio-visual content, one of the strategic objectives of the current research frame program. CHORUS coordinates a number of research projects in the general are...

In light of the contemporary societal challenges and the current technological trends that have revolutionized collaboration and creativity, ICT for Governance and Policy Modelling has recently emerged to achieve a better, participative, evidence-based and timely governance. Bringing together two separate worlds, i.e. the mathematical and complex systems background of Policy Modelling with the ...

Recent evidence suggests that despite opening up a country for trade, the productivity gap between developed and emerging economies often does not close. This paper examines credit constraints as one channel held responsible for hampering convergence. Specifically, we extend a Melitz and Ottaviano (2008) type trade model with variable mark-ups to allow for endogenous technology adoption. We con...

The aim of this paper is to derive a new robust stability margin. Known sufficient conditions for robust stability stated in gap-metric sense contain inherent conservativeness in the formulation of the various steps. In this paper conservativeness in one of the steps is removed, resulting in a new robustness margin. The key issue is that more information of the specific controller is taken into...

Marine wildlife tourism can benefit both conservation and communities when managed effectively. The Wildlife Tourism Model (WTM) is a framework used to assess sustainability. This paper illustrates how two aspects of the model, the Limits of Acceptable Change (LAC) and zoning can be linked to improve management direction. Four of the nine steps of the LAC process were applied to identify sustai...

Successful implementation of food supply chains in improving the productivity and operational efficiency by some companies made many other firms and researchers courteous about this fast developing field. For successful strategies, organizations in agri-food business are aiming to bring all its stakeholders in close cooperation. The agri-food supply chain aims at optimal warehousing and locatio...

This study investigates cross-border collaboration between beef organisations in Australia and Singapore. It aims to identify factors impacting trust and technology diffusion by gauging gaps between expected importance and perceived performance rating of the factors. The research presents results of a survey comprising 69 beef organisations from Australia and Singapore. The research identifies ...