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 37 for “"Block designs"”.
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Finite geometries and block designs
… affine and projective planes as well as block designs. We conclude with a chapter on how to apply these ideas to coding theory. Some of the results we look at include both the Bruck-Ryser and Bruck-Ryser-Chowla theorems as well as considering isomorphisms and automorphisms of block …
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Weighted Optimality of Block Designs
… design optimality, with special attention to the block design problem. Among others, this study develops and justifies weighted versions of the popular A, E and MV optimality criteria. These are based on the weighted information matrix, also introduced here. Sufficient conditions are derived for …
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Nearly Balanced and Resolvable Block Designs
… into subsets of more homogeneous units or <em>blocks</em> in order to isolate identifiable, unwanted, but unavoidable, variation in measurements made from the units. Given <em>v</em> treatments to compare, and having available <em>b</em> blocks of <em>k</em> experimental units each, the …
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Inter-block analysis of incomplete block designs
… of balanced and partially balanced incomplete block designs, certain ones have been found which lend themselves nicely to interblock analysis. Besides facilitating this analysis, these designs make possible the use of a new method for studying the relative variability of the inter and …
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TFTs circuit simulation models and analogue building block designs
… design. Further, unique analogue building blocks are needed due to the specific properties and non-idealities of TFTs. This dissertation reviews the major developments in thin-film transistor (TFT) modelling for the computer-aided design (CAD) and simulation of circuits and systems. …
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A characterization of the circularity of certain balanced incomplete block designs.
… We devote a chapter to the use of circular designs in coding theory. It is proven that these structures are not useful in the theory of error-correcting codes, since more efficient codes are known, for example the Reed-Muller codes. However, the theory developed in the earlier chapters does …
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Two-group comparisons in the rank analysis of incomplete block designs
The purpose of this work was to investigate certain two-group comparisons within a paired comparison experimental design.
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Combined intra- and inter-block analysis for factorials in incomplete block designs
… Bradley on the use of factorials in incomplete block designs bas been extended to permit both the intra-block and combined intra- and inter-block analyses of factorials in balanced and partially balanced incomplete block designs. In particular, we have obtained a combined intra- and inter-block …
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ON OPTIMAL AND HIGHLY EFFICIENT BLOCK DESIGNS FOR COMPARING TEST TREATMENTS WITH A CONTROL.
ON OPTIMAL AND HIGHLY EFFICIENT BLOCK DESIGNS FOR COMPARING TEST TREATMENTS WITH A CONTROL.
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Optimal Designs with Limited Resources
… we present new results regarding optimality of block designs with limited resources. The dissertation is organized as follows. The first chapter outlines the theory of optimal block design. The second chapter shows new work in optimal minimally connected block designs with spatial correlation …
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Optimal Blocking for Three Treatments and BIBD Robustness - Two Problems in Design Optimality
… matrix). The other is construction of designs satisfying those conditions. Most papers deal with either optimality conditions, or design construction in accordance with desired combinatorial properties, but not both. This dissertation determines optimal designs for three treatments in …
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Optimality and Construction of Designs with Generalized Group Divisible Structure
… of v treatments to experimental units in b blocks of size k, paying special attention to settings for which equal replication of the treatments is not possible. The model is that of one way elimination of heterogeneity, in which the expectation of an observation on treatment <em>i</em> in …
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Optimal Row-Column Designs for Correlated Errors and Nested Row-Column Designs for Uncorrelated Errors
… optimality conditions are derived separately for designs in the plane and on the torus using more general linear models than those considered elsewhere in the literature. Examples of universally optimum planar designs are given, and a method is developed for the construction of optimum and near …
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Recovery of interblock information
… best linear combination of the intra- and inter-block estimates is Intra-estimatexInter-variance+Inter-estimatexIntra-variance / Intra-variance + Inter-variance ; however, this combined estimate is merely theoretical, since we do not know in practice the exact inter- and intra-variances. A …
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The effects of different burning regimes on grassland phytodiversity
… randomly allocated to plots in replicated block designs, were sampled. Manipulated according to the frequency and season of burn, with fire protection controls, diversity was sampled at different scales across a range of treatments. In addition, a range of sward attributes was sampled in an …
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Tópicos de planeamento de experiências : uma abordagem estatística, computacional e matemática
… Randomized Design. Also to consider, are the Block Designs, detailing the Balanced Incomplete Block Designs, and inside, the symmetrical one’s. Finally is described all the Designs based in Squares, such as Latin Squares, Graeco-Latin Squares and Youden Squares, presenting their relations. The …
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Delineamento experimental em blocos incompletos : estudo de casos particulares
… com repetições (BIBDR) - Balanced Incomplete Block Designs with Repeated Blocks (Planos em Blocos Incompletos Equilibrados com Repetições). A construção dos (BIBD) - Balanced Incomplete Block Designs com Repetições (BIBDR) é abordada como um Plano Otimal que proporciona facilidade de aplicação …
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Detection power, temporal response, and spatial resolution of IRON fMRI in awake, behaving monkeys at 3 Tesla
… enables researchers to optimize experimental designs, and delineates the advantages and limitations of neuroimaging within this important animal model. The injection of the iron oxide contrast agent (MION) provided a 9-fold increase in efficiency for block designs relatively to BOLD contrast. …
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Cyclic Designs
Cyclic designs are incomplete block designs consisting of sets of blocks where in each set successive blocks are obtained in a cyclic manner from the first block of the set. It is convenient to label the objects (treatments) by the integers 0, 1, …, n-. Then if for a particular set the first block …
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