Browsing by Subject "diffusion"
Now showing items 1-20 of 21
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(2022-11-21)In the commercial nuclear power industry, there is a vested interest in improving the properties of the reactor components. Improving nuclear reactor materials to resist the severe structural changes and degradation not ...
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(2013-06-17)Atomic diffusion phenomena were examined in a metal-alloy nuclear fuel system composed of δ-phase U-50wt%Zr fuel in contact with either Zr-10wt%Gd or Zr-10wt%Er. Each alloy was fabricated from elemental feed material via ...
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(Texas A&M University, 2004-09-30)Corrosion of steel reinforcement in concrete structures results in significant repair and rehabilitation costs. In the past several years, new fiber reinforced polymer (FRP) reinforcing bars have been introduced as an ...
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(2015-08-19)After implications of hydraulic fracturing operations, the commercial production of tight formations and shale plays were successfully achieved in past decades. The industry now shifts its interest in enhancing the production ...
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(2011-08-08)A simple Richardson iteration procedure converges slowly when applied to thick, diffusive problems with scattering ratios near unity. The current state of the art for overcoming this is to use a Krylov method with a diffusion ...
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(Texas A&M University, 2005-11-01)Natural and hot isostatically pressed dolomite aggregates were experimentally deformed at effective pressures of Pe = 50 ?? 400 MPa, temperatures of 400 ?? 850??C, and strain rates of ε& = 1.2x10-4 s-1 to 1.2x10-7 ...
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(Texas A&M University, 2006-04-12)The purpose of this study was to determine factors influencing cotton producer adoption of Precision Agriculture in the cotton belt according to members of the American Cotton Producers of the National Cotton Council. The ...
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(2010-10-12)This research work has contributed in various ways to help develop a better understanding of textile composites and materials with complex microstructures in general. An instrumental part of this work was the development ...
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(2013-08-13)Embedding metal nanoparticles in crystalline silicon possesses numerous possible applications to fabricate optoelectronic switches, increase efficiency of radiation detectors, decrease the thickness of monocrystalline ...
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(2016-06-14)In this dissertation, we develop improvements to the discrete ordinates (S_N) neutron transport equation using a Discontinuous Galerkin Finite Element Method (DGFEM) spatial discretization on arbitrary polytope (polygonal ...
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(2022-04-11)We develop, analyze, and test iterative methods for three kinds of multigroup transport problems: (1) k-eigenvalue neutronics, (2) thermal radiation transport, and (3) problems with “upscattering,” in which particles can ...
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(2012-02-14)The land-grant university and the cowboy church are two social institutions designed to engage communities. Research is abundant on the former and limited on the latter. The purpose of this study was to provide a descriptive ...
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(2013-04-19)The diffusion approximation to the equation of transfer (Boltzmann transport equation) is usually applied to media where scattering dominates the interactions. Diffusion approximation helps in significant savings in terms ...
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(2015-12-12)The objective of this study is to determine whether exposing an asphaltic roadway to standing liquid water for a duration of twelve hours will cause sufficient moisture penetration to induce deterioration of the roadway. ...
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(2018-07-30)This study presents a transient analysis of fluid diffusion behavior in polymers, fiber reinforced polymer (FRP) composites, and polymeric sandwich composites. The studied polymers and polymer composites consist of pure ...
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(2009-06-02)A method for improving the accuracy of the optical diffusion theory for a multi-layer scattering medium is presented. An infinitesimally narrow incident light beam is replaced by multiple isotropic point sources of different ...
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(2011-02-22)Providing support for the agricultural development of small farmers is the main goal of the project Agriculture in Guatemala: Technology, Education and Commercialization (AGTEC). To accomplish this, it is necessary, to ...
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(2012-02-14)Carbon has been used electrochemically in various forms for water treatment and the carbon aerogel is one of them. Carbon Aerogels (CA) are used as electrodes due to their high surface capacity and high electrical conductivity. ...
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(2009-05-15)Spintronics, an abbreviation of spin based electronics and also known as magneto electronics, has attracted a lot of interest in recent years. It aims to explore the role of electrons’ spins in building next generation ...
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(2013-11-25)The hydrocarbon resources found in shale reservoirs have become an important energy source in recent years. Unconventional geological and engineering features of shale systems pose challenges to the characterization of ...