This problem was first discussed by Stokes over 150 years ago [1, 2, 3, 4], who noted that three-dimensional sound waves from a bounded source cannot be unipolar. While his argument applies to electromagnetic waves as well, this is little recognized in the literature. One-dimensional electromagnetic (and sound) waves can be unipolar. A plane wave can have any pulseform, but, strictly speaking, ...

We propose a new algorithm for a classical problem in plane computational geometry: computing a shortest path between two points in the presence of polygonal obstacles. Our algorithm runs in worst-case time O(nlog2n) and requires O(n1ogn) space, where n is the total number of vertices in the obstacle polygons. Our algorithm actually computes a planar map that encodes shortest paths from a fixed...

This work presents an out-of-the-box python-based open-source 3D Digital Image Correlation (3D-DIC) software for both in-plane and out-of-plane full-field measurements, denoted by iCorrVision-3D. The includes integrated stereo grabber image acquisition, calibration, numerical correlation post-processing modules. main objective is to provide a complete 3D-DIC system users. All important DIC sett...

Microgrids (MGs) rely on networked control supported by off-the-shelf wireless communications. This makes them vulnerable to cyber-attacks, such as denial-of-service (DoS). In this paper, we mitigate those attacks by applying the concepts of (i) separation of data plane from network control plane, inspired by the software defined networking (SDN) paradigm, and (ii) agile reconfiguration of the ...

A general formulation of Dyadic Green’s function for a point source above a two-dimensional periodic boundary is presented in spectral form. This formulation is simplified by considering only the zero term of the infinite Floquet modes. Then it is applied to obtain the Dyadic Green’s function of a printed source above a dielectric slab with periodically defected ground plane by using a generali...

The records of multiple Love and Rayleigh waves of the Alaska earthquake of 1964 were recovered from the 30-100 seismograph records at the WWSSN stations. The seismograms were equalized to a propagation distance of 9rr/2 (equivalent to G5 and R5 at • -r/2). These seismograms were compared with synthetic seismograms for radiation pattern and amplitude to estimate various source parameters. The s...

During the last few years, the network research community and the industry have been working on the design of an alternate Internet Routing Architecture aiming at solving the issues arising in the current architecture. It is widely accepted that applying a Locator/ID Separation paradigm would result in a more scalable and flexible architecture. As the name suggests, in Locator/ID Separation the...

In the past decade the virtualization paradigm has been remarkably successful in the server domain, and significant benefits are expected from the virtualization of network resources. However, to date the virtualization capabilities of proprietary systems remain limited while the impact of executing open software routers within system virtualization platforms has not been fully investigated. In...

Network virtualization provides the ability to run multiple concurrent virtual networks over a shared substrate. However, it is challenging to design such a platform to host multiple heterogenous and often highly customized virtual networks. Not only high degree of flexibility is desired for virtual networks to customize their functions, fast packet forwarding is also required. This paper prese...