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Verrall N.G.,Tech Lab Group
Journal of the Royal Army Medical Corps | Year: 2011

Alcohol consumption is a part of military history. The impacts in terms of both short-term and long-term consequences require modern militaries to develop and instigate a duty of care for its personnel, which informs the military's 'cradle to the grave' approach in addressing alcohol consumption and other risky health behaviors (e.g. smoking, driving, sex, drugs, obesity, etc.). Thus, in recent years there have been numerous studies that have either focused on, or included, measures of alcohol consumption among various military populations. Therefore, a synthesis of this research is warranted in order to provide a contemporary understanding of this topic. This review addresses the military research regarding alcohol consumption. It reviews the methodological issues associated with the breadth of research, as well as commenting on a range of factors that need to be considered when interpreting and comparing the different research studies; for example, (1) when comparing findings across military to civilian and pan-military populations, (2) deployment-related research, (3) military groups at risk, and (4) the impact on readiness, operational effectiveness and force sustainability. Source

Vautard F.,Oak Ridge National Laboratory | Ozcan S.,Oak Ridge National Laboratory | Meyer H.,Tech Lab Group
Composites Part A: Applied Science and Manufacturing | Year: 2012

Carbon fibers were surface treated by a continuous gas phase thermo-chemical treatment. The surface and the mechanical properties of the fibers were investigated before and after treatment and compared to the properties obtained with a conventional industrial electro-chemical surface treatment. The increase of the oxygen atomic content was much sharper, the surface chemistry was better controlled, and the tensile strength of the fibers increased slightly with the thermo-chemical surface treatment. The thermo-chemical surface treatment created a topography which amplitudes were under 10 nm, thus creating some mechanical interlocking with the matrix. The electro-chemical surface treatment did not generate such a topography. The improvement of interfacial adhesion with a vinyl ester matrix was limited, revealing that oxidation of the carbon fiber surface alone cannot tremendously improve the mechanical properties of carbon fiber-vinyl ester composites. © 2012 Elsevier Ltd. All rights reserved. Source

Hasanzadeh M.,Tabriz University of Medical Sciences | Shadjou N.,Tech Lab Group | Omidinia E.,Tabriz University of Medical Sciences
Colloids and Surfaces B: Biointerfaces | Year: 2013

Magnetic (Fe2O3) mobile crystalline material-41 (MCM-41) was prepared and characterized using transmission electron microscopy (TEM) and nitrogen adsorption-desorption techniques. Due to the large surface area (1213 m2g-1) and remarkable electrocatalytic properties of MCM-41-Fe2O3, the MCM-41-Fe2O3 modified glassy carbon electrode (MCM-41-Fe2O3/GCE) exhibits potent electrocatalytic activity toward the electro-oxidation of amino acids. MCM-41-Fe2O3/GCE brings new capabilities for electrochemical sensing by combining the advantages of Fe2O3 magnetic nanoparticles and MCM-41 with very large surface area. Cyclic voltammetry, hydrodynamic amperometry and flow injection analysis used to determination of amino acids at higher concentration range. Fast response time, excellent catalytic activity, and ease of preparation are the advantages of the proposed amino acid sensor. © 2013 Elsevier B.V. Source

Omidinia E.,Tech Lab Group | Shadjou N.,Tech Lab Group | Hasanzadeh M.,Tabriz University of Medical Sciences
Materials Science and Engineering C | Year: 2013

Fe3O4-graphene oxide (GO) modified glassy carbon (GC) electrode was used as a new magnetic nanosensor for determination of phenylalanine (Phe). It was found that Fe3O4-GO has been stably absorbed on GC electrode modified by simple technique. The cyclic voltammograms of the modified electrode in an aqueous solution displayed a pair ofwell-defined, stable and irreversible reductive/oxidation redox systems. The apparent electron transfer rate constant (ks) and transfer coefficient (α)were determined by cyclic voltammetry andwere approximately 9.3 s-1 and 0.67, respectively. The modified electrode showed excellent catalytic activity towards the oxidation of Phe at an unusually positive potential in buffer solution. This nanosensor also displayed fast response time, high sensitivity, lowdetection limit and had a remarkably positive potential oxidation of Phe that decreased the effect of interferences in analysis. © 2013 Elsevier B.V. All rights reserved. Source

Buechley L.,Tech Lab Group | Hill B.M.,Massachusetts Institute of Technology
DIS 2010 - Proceedings of the 8th ACM Conference on Designing Interactive Systems | Year: 2010

This paper examines the distribution, adoption, and evolution of an open-source toolkit we developed called the LilyPad Arduino. We track the two-year history of the kit and its user community from the time the kit was commercially introduced, in October of 2007, to November of 2009. Using sales data, publicly available project documentation and surveys, we explore the relationship between the LilyPad and its adopters. We investigate the community of developers who has adopted the kit - -paying special attention to gender - -explore what people are building with it, describe how user feedback impacted the development of the kit and examine how and why people are contributing their own LilyPad-inspired tools back to the community. What emerges is a portrait of a new technology and a new engineering/design community in co-evolution. © 2010 ACM. Source

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