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A study of the corrosion resistance of gamma titanium aluminide in ringer's solution, 3.5 WT% NaCI and seawater
(2005)
Corrosion resistance is one of the essential requirements that determine the application of a metallic alloy as a biomaterial. The titanium alloy, gamma titanium aluminide (γTiAl), widely known for its low density, high ...
Natural-convection heat transfer in supercritical fluids
(2004)
The main objective of this study is to calculate the heat-transfer coefficients for natural convection from a heated, vertical flat plate into a supercritical fluid. In the first part of this work, an equation for the ...
Análisis de exergía en dos puntos críticos en una industria productora de harina de pescado
(2005)
This research consists in the application of an exergy analysis method to the fishmeal production process. A mathematical expression for the enthalpy of fish as function of temperature and weight fraction of proteins, fats ...
Transient, three-dimensional numerical model of laser cutting processes in ceramics with phase change consideration
(2004)
Physical problems involving moving heat sources can be encountered in many industrial applications during material processing, including cutting, drilling, welding,
heat treatment, and surface alloying, to name a few. ...
Robust bird-strike modeling using LS-DYNA
(2006)
Throughout this work, bird-strike events are studied using three approaches in LSDYNA: Lagrangian, Arbitrary Lagrange Eulerian (ALE), and Smooth Particle
Hydrodynamics (SPH). A simple one-dimensional beam centered impact ...
An assessment of future Caribbean climate change using "business as usual" scenario by coupling GCM data & RAMS
(2005)
The Caribbean rainfall season has a bimodal nature, which is divided in the Early Rainfall Season (ERS) and Late Rainfall Season (LRS). To carry out the long-term average conditions Caribbean season analysis, the National ...
AFM studies on fractured surfaces of AF1410 steel and A7075-T6 aluminum alloy
(2006)
In the present research, atomic force microscopy (AFM) was used to characterize fracture surfaces of the AF1410, ultra-high strength steel, and a high strength AA7075-T6 aluminum alloy. Both materials are used by the U.S. ...
Impacts of low land use on a tropical montane cloud forest under a changing coastal climate
(2007)
Tropical Montane Cloud Forests (TMCF) are a primary source of fresh water in tropical locations and are highly sensitive to climate changes. Climatic analysis for El Yunque Rain Forest, a TMCF, located in North Eastern of ...
Study of hydrogen permeation and diffusion in steels
(2005)
The high mobility of hydrogen is due to the relative small size compared to the atomic size of transition metals. However, the presence of defect (dislocations, voids, grain boundaries), can hinder hydrogen transport as ...
Design of an intravenous drug delivery device
(2004-05)
The use of intravenous implanted devices to deliver controlled drug dosage for the treatment of certain health problems is becoming more common as an alternative to regular injection procedures. This work proposes a ...