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Showing 1 to 12 of 12 for “"Incomplete block design"”.
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Analysis of variance of a balanced incomplete block design with missing observations
… the resulting augmented data in a balanced incomplete block design. The estimates are obtained by Yates' procedure of minimizing the error sum of squares. Explicit formulae are obtained for all cases involving not more than two missing values and for several particular configurations of the …
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Effect of protein source on milk composition of cows fed low fiber, high grain diets
… were randomly assigned to one of six diets in an incomplete block design. Each cow received two of six diets. Cows received the first diet for 32 d, then were offered a different diet for 32 d. received two of six diets. There were 5 observations per diet per period for a total of ten observations …
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Prescribed burning for vegetation management on the Blue Ridge Parkway
… in forest management practices. This study was designed to compare prescribed burning in the fall or the spring with hand cutting to reduce the overall height of vegetation. Ten scenic overlooks on the Blue Ridge Parkway were selected for treatment. The experiment is a randomized incomplete …
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Effects of Forestry Streamside Management Zones on Stream Water Quality, Channel Geometry, Soil Erosion, and Timber Management in the Virginia Piedmont
… were installed across four experimental blocks during harvest. Each of the 16 watersheds was subsequently site-prepared with prescribed burning and planted with loblolly pine (Pinus taeda). Within the watersheds, the established treatments were a 100-foot width with no thinning, a 50-foot …
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Structures and properties of repeated measurement designs
… and properties of repeated measurement (RM) designs are investigated from different points of view, such as (i) balancedness or partial balancedness, (ii) construction versus estimation, (iii) underlying linear models, (iv) factorial treatment structure. In studying balanced repeated …
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Slash Mulching and Incorporation as Mechanical Site Preparation for Pine Plantation Establishment and Subsequent Effects on Soil Moisture and Site Hydrology
… The wet flat study was organized as an incomplete block design having four blocks and six treatments: (i) conventional bedding, (ii) strip surface mulching with bedding, (iii) strip surface mulching with tillage and bedding, (iv) broadcast mulch without bedding, (v) broadcast mulch with …
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Nearly Balanced and Resolvable Block Designs
… of the fundamental principles of experimental design is the separation of heterogeneous experimental units 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> …
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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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Computer generation of designs for two-phase experiments with applications to multiplex experiments in proteomics
… in order for these eects to be evaluated. Two designs are needed for these experiments, one for each phase. Since the allocation of experimental units from the Phase 1 experiment to blocks in the Phase 2 experiment results in the block eects from the two phases interacting with one another, the …
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Development and validation of prediction equations for the metabolizable energy content of distillers dried grains with solubles from different sources for pigs
… were conducted simultaneously using an incomplete block design to determine the apparent DE and ME of samples of DDGS as follows: Exp. 1 used 18 dietary treatments, a corn-based control diet (common to all experiments) and 17 diets composed of each of 17 DDGS samples unground. Exp. 2 …
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Weighted Optimality of Block Designs
Design optimality for treatment comparison experiments has been intensively studied by numerous researchers, employing a variety of statistically sound criteria. Their general formulation is based on the idea that optimality functions of the treatment information matrix are invariant to treatment …
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Improvement of nutritional characteristics and other health benefits of processed maize food products
… These inbreds were crossed using a half-diallel design to create 66 F1 hybrids. The parental inbreds and their hybrids (N = 78 entries) were evaluated together and grown in a Resolvable Incomplete Block Design with three replications for three years. One pound (454 g) of grain was harvested from …