Hyperaccurate thermoelectric currents

Hyperaccurate Ellipse Fitting without Iterations

This paper presents a new method for fitting an ellipse to a point sequence extracted from images. It is widely known that the best fit is obtained by maximum likelihood. However, it requires iterations, which may not converge in the presence of large noise. Our approach is algebraic distance minimization; no iterations are required. Exploiting the fact that the solution depends on the way the ...

Hyperaccurate Correction of Maximum Likelihood for Geometric Estimation

Abstract: The best known method for optimally computing parameters from noisy data based on geometric constraints is maximum likelihood (ML). This paper reinvestigates “hyperaccurate correction” for further improving the accuracy of ML. In the past, only the case of a single scalar constraint was studied. In this paper, we extend it to multiple constraints given in the form of vector equations....

Three-Dimensional Simulation of Qeshm Channel Currents

Qeshm Channel is a shallow and narrow waterway located between Qeshm Island and the mainland in the vicinity of Hormuzgan Province, Islamic Republic of Iran. This channel is important because of its economic, industrial, fisheries and navigation role it plays as well as environmental issues it presents in the region. A prognostic study was performed to simulate currents in this channel, using C...

Enhancing Thermoelectric

Thermoelectric Devices

A circuit was designed to generate and store electricity for use by NASA components or equipments, contributing to and advancing the capabilities of NASA missions. This project will be based on thermoelectric devices that convert heat energy to electricity. During this research, thermoelectric devices will be tested in a variety of configurations with the goal of demonstrating a thermoelectric-...