Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 84 for “"GLS"”.
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Efficient Estimation of Stochastic Parameters: A GLS Approach
This thesis presents a novel rolling GLS-based model to improve the precision of time-varying parameter estimates in dynamic linear models. Through rigorous simulations, the rolling GLS model exhibits enhanced accuracy in scenarios with smaller sample sizes and maintains its efficacy when the …
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Da Avenida Cerqueira Lima ao Beco dos Artistas: um espaço de sociabilidade GLS
This paper proposes to consider a space of homosexual sociability in Salvador, Beco dos Artistas, reflecting about how people live in this space, the meaning and sense which they attribute to it, and their practices, relations and attitudes. I also propose a reflection on the reasons for the …
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New Approaches to Automated Analytical Instrumentation
… Various designs of gas-liquid separators (GLS) were investigated for continuous flow hydride generation, including a glass 'U' tube GLS, a silicone rubber membrane GLS and a microporous polytetrafluoroethylene membrane GLS.
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A scalable location service for geographic ad hoc routing
GLS is a new distributed location service which tracks mobile node locations. GLS combined with geographic forwarding allows the construction of ad hoc mobile networks that scale to a larger number of nodes than possible with previous work. GLS is decentralized and runs on the mobile nodes …
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Increasing the Nutritional Value of Canola Meal via Fungal Bioprocessing
… </em>spp. is the presence of glucosinolates (GLS), which are anti-nutritional and can even be toxic at high ingestion levels. Furthermore, large amounts of GLS can reduce palatability for livestock and thus reduce intake and growth rates. For this reason canola was bred to contain lower levels …
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Optimal state assignment of sequential circuits using a genetic local search with flexible cost functions
… of a genetic local search algorithm (GLS) that selectively targets design goals with the use of flexible cost functions. Our GLS quickly converges toward a globally optimal state encoding, producing high quality solutions. We explore the properties of encoding-based (calculated from …
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Gallium lanthanum sulphide glasses for near-infrared photonic applications
… investigates gallium lanthanum oxysulphide (GLS) glasses for potential fibre device applications. GLS glasses have low phonon energy and high rare earth solubility, which makes them candidates for rare earth-doped devices, and in particular for the 1.3 µm praseodymium-doped optical fibre …
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Modified chalcogenide glasses for optical device applications
… the modification of gallium lanthanum sulphide (GLS) glasses. Firstly the addition of transition metal ions as dopants is examined and their potential for use as active optical materials is explored. It is also argued that the spectroscopic analysis of transition metal ions is a useful tool for …
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Modified chalcogenide glasses for optical device applications
… the modification ofgallium lanthanum sulphide (GLS) glasses. Firstly the addition of transition metal ionsas dopants is examined and their potential for use as active optical materials is explored.It is also argued that the spectroscopic analysis of transition metal ions is a useful toolfor …
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Rare-earth-doped gallium lanthanum sulphide glasses for mid-infrared fibre lasers
Gallium lanthanum sulphide (GLS) glass was investigated as a potential host material for rare-earth (RE) doped mid-infrared fibre lasers. <br/><br/>Glasses were fabricated from gallium sulphide and lanthanum sulphide powders by melt quenching and drawn into fibres using the rod-in-tube technique. …
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A spectroscopic investigation of novel doped glasses for active infrared devices
… and Vanadium-doped gallium lanthanum sulphide (GLS) glasses were identified as possible new amplifier materials. Emission was observed at 1200nm from Ni-doped GLS and at 1400nm for V-doped GLS. The FWHM of the emission from V-doped GLS was 450 nm, making it particularly attractive for a …
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Optical micro-resonators in chalcogenide glass
… on the production of gallium lanthanum sulphide (GLS) microspheres and their potential uses. Microspheres, and micro-resonators in general, have attracted considerable attention because of their promise in all-optical-switching, micro-lasers, multiplexers and many other applications. In this …
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Completely Recursive Least Squares and Its Applications
… important to generalize RLS for generalized LS (GLS) problem. It is also of value to develop an efficient initialization for any RLS algorithm.</p> <p>In Chapter 2, we develop a unified RLS procedure to solve the unconstrained/linear-equality (LE) constrained GLS. We also show that the LE …
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A longitudinal investigation of coping and life satisfaction in adolescents.
… and externalizing), global life satisfaction (GLS), and friend satisfaction (FR LS). A total of 1011 students in grades 7-8 at a southeastern middle school completed the Students' Life Satisfaction Scale (Huebner, 1991), the friend subscale of the Multidimensional Students' Life Satisfaction …
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The effect of raw and processed vegetables on colonocyte dna damage.
… mainly to their content of glucosinolates (GLS). The breakdown of GLS into their bioactive products is largely dependent on the plant enzyme myrosinase; in contrast, the profile of products formed depends on the parent GLS, conditions of hydrolysis and the presence of a cofactor - …
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Inference in linear panel data models with serial correlation and an essay on the impact of 401 (k) participation on the wealth distribution
… chapter examines generalized least squares (GLS) estimation in data with a grouped structure where the groups may be autocorrelated. The analysis presents computationally convenient methods for obtaining GLS estimates in large multilevel data sets and discusses estimation of covariance …
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Stabilized Finite Element Methods for Feedback Control of Convection Diffusion Equations
… scheme based on the Galerkin Least Squares (GLS) method and compare this scheme to the standard Galerkin finite element method. We use cubic B-splines in order to keep the higher order terms that occur in GLS formulation. We conduct a careful numerical investigation into the convergence and …
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A greenhouse screening method for resistance to gray leaf spot in maize
Gray leaf spot (GLS) disease of maize (Zea mays L.), caused by the fungus Cercospora zeae-maydis, causes significant corn yield losses in Virginia and other mid-Atlantic states. A new greenhouse assay method with filter paper discs of C. zeaemaydis mycelia has been developed to evaluate corn …
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Massively parallel solver for the high-order Galerkin Least-Squares method
A high-order Galerkin Least-Squares (GLS) finite element discretization is combined with massively parallel implicit solvers. The stabilization parameter of the GLS discretization is modified to improve the resolution characteristics and the condition number for the high-order interpolation. The …
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Alternative estimation methods in structural equation modeling with LISREL-7: Effects of noncontinuity and nonnormality of variables with varying sample sizes
… of alternative estimation methods (i.e., ML, GLS, and WLS) in structural equation modeling was investigated under two kinds of sample sizes--150 and 500--with advantage of Monte Carlo study. Four types of variables--continuous-normal, continuous-nonnormal, discrete-normal, and …
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