Aperture extension (interferometry baseline extension) is achieved in this novel ESPRIT-based two-dimensional (2-D) arrival angle estimation scheme using a sparse (a.k.a., thin or thinned) uniform rectangular array of electromagnetic vector sensors spaced much farther apart than a half-wavelength. An electromagnetic vector sensor is composed of six spatially co-located, orthogonally oriented, d...

A computational fluid dynamics simulation is done for non-Newtonian fluid in a baffled stirred tank. The CMC solution is taken as non-Newtonian shear thinning fluid for simulation. The Reynolds Average Navier Stocks equation with steady state multi reference frame approach is used to simulate flow in the stirred tank. The turbulent flow field is modelled using realizable k-ε turbulence model. T...

In a Computational Grid, or Grid, a user often requires a service to perform an action on his behalf. Currently, the user has few options but to grant the service the ability to wholly impersonate him, which opens the user to seemingly unbounded potential for security breaches if the service is malicious or errorful. To address this problem, eight approaches are explored for realizable, practic...

The extension space conjecture of oriented matroid theory claims that the space of all (non-zero, non-trivial, single-element) extensions of a re-alizable oriented matroid of rank r is homotopy equivalent to an (r ? 1)-sphere. In 1993, Sturmfels and Ziegler proved the conjecture for the class of strongly Euclidean oriented matroids, which includes those of rank at most 3 or corank at most 2. Th...

This paper presents a novel image space path planning method that takes mechanical constraints into consideration. The aim is to synthesize sub-goal images that can be used as reference inputs for image-based visual servoing systems. Synthesized images are constructed based on screw decompositions represented in a projective space. The projective representation allows image synthesis for threed...

In this paper, we consider the problem of synthesizing online optimal flight controllers, in the presence of multiple objectives. The problem is cast as an adaptive Multi-Objective Optimization (MO-Op) flight control problem, in which a control policy is sought that attempt to optimize over multiple, sometimes conflicting objectives. A solution strategy utilizing Gaussian Process (GP) based ada...

A classic result in probability theory known as de Finetti’s theorem states that exchangeable random variables are equivalent to a mixture of distributions where each distribution is determined by an i.i.d. sequence of random variables (an “i.i.d. mix”). Motivated by a recent application in [18] and more generally by the relationship of local vs. global correlation in randomized rounding, we st...

In this paper, we study optical multistage interconnection networks (MINs). Advances in electro-optic technologies have made optical communication a promising networking choice to meet the increasing demands of high-performance computing communication applications for high channel bandwidth and low communication latency. Although optical MINs hold great promise and have demonstrated advantages ...

According to a fundamental result in quantum computing, any unitary transformation on composite system can be generated using so-called 2-local unitaries that act only two subsystems. Beyond its importance this also regarded as statement about the dynamics of systems with local Hamiltonians: although locality puts various constraints short-term dynamics, it does not restrict possible evolutions...