One main group of a transportation network is a discrete hub covering problem that seeks to minimize the total transportation cost. This paper presents a multi-product and multi-mode hub covering model, in which the transportation time depends on travelling mode between each pair of hubs. Indeed, the nature of products is considered different and hub capacity constraint is also applied. Due to ...

We investigate the coupling efficiency of parametric downconversion light (PDC) into single and multi-mode optical fibers as a function of the pump beam diameter, crystal length and walk-off. We outline two different theoretical models for the preparation and collection of either single-mode or multi-mode PDC light (defined by, for instance, multi-mode fibers or apertures, corresponding to buck...

This paper studies a cooperating mode selection problem of manufacturer who sells its products through an offline channel and online platform under cap-and-trade regulation. The can operate with marketplace or reselling mode. We investigate the manufacturer's optimal operational decisions platform's modes considering demand disruptions. First, when carbon cap decreases in application process, t...

Title of Thesis: ON-DEMAND MULTIPLE ACCESS FOR NEXTGENERATION NASA MISSIONS Degree candidate: Lin Lin Degree and year: Master of Science, 2001 Thesis directed by: Dr. Michael Hadjitheodosiou Dr. John S. Baras Department of Electrical and Computer Engineering There is considerable interest at this time in developing small satellites for quick-turnaround missions to investigate near-earth phenome...

A complete analysis of multi-mode bosonic Gaussian channels is proposed. We clarify the structure of unitary dilations of general Gaussian channels involving any number of bosonic modes and present a normal form. The maximum number of auxiliary modes that is needed is identified, including all rank deficient cases, and the specific role of additive classical noise is highlighted. By using this ...

Compressive displays are an emerging technology exploring the co-design of new optical device configurations and compressive computation. Previously, research has shown how to improve the dynamic range of displays and facilitate high-quality light field or glasses-free 3D image synthesis. In this paper, we introduce a new multi-mode compressive display architecture that supports switching betwe...

Multi-objective optimization using an evolutionary computation technique is used extensively for solving conflicting multi-objective optimization problems. In this work, an improved strategy of multi-objective differential evolution (MODE) where the mutation strategy is changed to a trigonometric mutation approach is proposed. The proposed strategy along with other well known strategies of MODE...