Results 211 to 220 of about 3,026,757 (253)

Poppe plots for size-exclusion chromatography

Journal of Chromatography A, 2005
Poppe plots provide a clear and unambiguous way to discuss the performance limits of separation systems. The effects of particle size, pressure drop and column permeability can be illustrated using such plots. The performance limits of size-exclusion chromatography are of interest, due to developments in combinatorial chemistry and high-throughput ...
Popovici, S.T., Schoenmakers, P.J.
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Optimum Plot Size and BAF

Forest Science, 1985
Abstract A method is presented for determining the plot size or basal area factor (BAF) which minimizes total cruising time to provide estimates within a stated level of accuracy. Factors affecting the optimization of plot size or BAF are discussed. Forest Sci. 31:587-594.
Charles W. Gambill, Harry V. Wiant, David O. Yandle   +2 more
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Plot Size in Mushroom Cropping Experiments

Journal of Horticultural Science, 1965
The effect on crop variability of growing in different sizes of containers was tested in three experiments by using two sizes of tray. The basal areas of the trays were 1 and 6 sq. ft. and the volumes of compost in them ⅓ and 4 cu. ft. respectively. Plots comprised small trays grouped in threes, and large trays used singly.
D. Cooke, P. B. Flegg
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Plot Size Optimization

Forest Science, 1980
Abstract The relationships between measurement time, travel time, and plot size are examined for simple random sampling and systematic sampling on a square lattice. The total time to estimate a stand variable within a desired level of accuracy is shown to be minimal if plot size is calculated from the formula P* = P(t/m)² where P ...
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OPTIMAL LIMA BEAN PLOT SIZE

Fractals
It is important to determine optimal experimental plot size in order to ensure accurate results and correct decision making. There are no studies of this nature for lima bean cultivation. As such, the aim of this study was to determine the optimal plot size to estimate lima bean yield in family farming and experimental areas ...
ARTUR MENDES MEDEIROS, JOSÉ VALDENOR DA SILVA JUNIOR, GUSTAVO ALVES PEREIRA, JÚLIO FERREIRA DE SOUZA FILHO, JENILTON GOMES DA CUNHA, ALCINEI MISTICO AZEVEDO, PRISCILA ALVES BARROSO   +6 more
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Plot size and number of plots needed to assess spruce budworm impact

Canadian Journal of Forest Research, 1982
This study investigated size and number of plots needed to precisely estimate tree mortality, mean dead basal area, mean dead volume, mean live basal area, and mean live volume in stands infested with the spruce budworm, Choristoneurafumiferana (Clemens).Depending on the parameter, precision of four different plot sizes (0.02, 0.04, 0.08, 0.40 ha) was
Chester Karpinski Jr., J. A. Witter
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Mass–count plots for crystal size control

Chemical Engineering Science, 2015
Abstract We present measurements from batch crystallization as a trajectory in the phase space mapped out by the crystal mass and the total chord count. This new perspective yields a framework for monitoring and controlling crystallization that has two beneficial attributes: first, crystallization is seen as movement—we find that this fosters an ...
Daniel J. Griffin, Martha A. Grover, Yoshiaki Kawajiri, Ronald W. Rousseau   +3 more
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Plot Sizes for Timber Cruising in Georgia

Journal of Forestry, 1965
Abstract Do foresters often use larger field plots than they really need for cruising timber? Tests in two important forest types indicate that they do. Relative efficiencies of BAF-10 point-samples versus five sizes of circular plots were studied in the Georgia Piedmont.
Gene Avery, Roger Newton
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Determination of Drainage Networks From Plot-Size and Basin-Size Areas

Applied Engineering in Agriculture, 1992
An algorithm to identify drainage networks from point elevation data is described. The algorithm is specifically designed to handle very fine grid spacings used to study erosion processes. The algorithm has been expanded to include basin-size areas.
null G. Couger, null B. N. Wilson, null C. T. Rice   +2 more
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D-Optimal Split-Plot Designs With Given Numbers and Sizes of Whole Plots

Technometrics, 2003
The design of split-plot experiments has received considerable attention during the last few years. The goal of this article is to provide an efficient algorithm to compute D-optimal split-plot designs with given numbers of whole plots and given whole-plot sizes. The algorithm is evaluated and applied to a protein extraction experiment. In addition, it
Peter Goos, Martina Vanderbroek
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