Now showing items 101-110 of 110
Modelling and analysis of metal transfer in gas metal arc welding
(IOP Publishing Ltd, 2003-05-07)
A numerical model combining the methods of enthalpy, effective-viscosity and volume-of-fluid is developed to simulate the metal transfer process in gas metal arc welding. The model describes not only the influence on droplet ...
Bubble-size distributions produced by wall injection of air into flowing freshwater, saltwater and surfactant solutions
(Springer-Verlag, 2004-12)
As air is injected into a flowing liquid, the resultant bubble characteristics depend on the properties of the injector, near-wall flow, and flowing liquid. Previous research has shown that near-wall bubbles can significantly ...
Active Methane Venting Observed at Giant Pockmarks Along the U.S. Mid-Atlantic Shelf Break
(Elsevier, 2007-12-14)
Detailed near-bottom investigation of a series of giant, kilometer scale, elongate pockmarks along the edge of the mid-Atlantic continental shelf confirms that methane is actively venting at the site. Dissolved methane ...
Linear and nonlinear gravity-capillary water waves with a soluble surfactant
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2001-04)
Naturally occurring soluble-surfactant slicks influence the properties of water waves. This paper describes results from wave tank experiments involving a soluble surfactant, and linear and nonlinear gravity- capillary ...
The 2005 Chios Ancient Shipwreck Survey: New Methods for Underwater Archaeology
(The American School of Classical Studies at Athens, 2009-04)
In 2005 a Greek and American interdisciplinary team investigated two shipwrecks off the coast of Chios dating to the 4th-century b.c. and the 2nd/1st century. The project pioneered archaeological methods of precision ...
Coordination of converter and fuel cell controllers
(John Wiley & Sons, Ltd., 2005-10-10)
Load following fuel cell systems depend on control of reactant flow and regulation of DC bus voltage during load (current) drawn from them. To this end, we model and analyse the dynamics of a fuel cell system equipped with ...
Characterizing the Deep Insular Shelf Coral Reef Habitat of the Hind Bank Marine Conservation District (US Virgin Islands) Using the Seabed Autonomous Underwater Vehicle
(Elsevier, 2006-01-04)
The benthic communities of the deep insular shelf at the Hind Bank marine conservation district (MCD), an important spawning aggregation site for groupers, were studied with the Seabed autonomous underwater vehicle (AUV) ...
Large Area 3D Reconstructions from Underwater Surveys
(IEEE, 2004-11-09)
Robotic underwater vehicles can perform vast optical
surveys of the ocean floor. Scientists value these surveys since
optical images offer high levels of information and are easily
interpreted by humans. Unfortunately the ...
Exactly Sparse Delayed-State Filters for View-Based SLAM
(IEEE, 2006-12)
This paper reports the novel insight that the simultaneous localization and mapping (SLAM) information matrix is exactly sparse in a delayed-state framework. Such a framework is used in view-based representations of the ...
Solstice: An Electronic Journal of Geography and Mathematics, Volume XV, Number 1
(Institute of Mathematical Geography, 2004-06-21)
The purpose of Solstice is to promote interaction between geography and mathematics. Articles in which elements of one discipline are used to shed light on the other are particularly sought. Also welcome, are original ...