Buscar
Mostrando ítems 41-50 de 26805
Size matters: point pattern analysis biases the estimation of spatial properties of stomata distribution
(Blackwell Publishing Ltd, 2017)
© 2016 The Authors. New Phytologist © 2016 New Phytologist Trust Stomata distribution is an example of biological patterning. Formal methods used to study stomata patterning are generally based on point-pattern analysis, ...
Tamanho de amostra para caracteres morfológicos e produtivos de Crotalaria juncea
(Universidade Federal de Santa MariaBrasilAgronomiaUFSMPrograma de Pós-Graduação em AgronomiaCentro de Ciências Rurais, 2016-11-04)
The sunn hemp (Crotalaria juncea L.) is a legume used in crop rotation, for biomass formation, biological nitrogen fixation and control of nematodes. More and more studies are being conducted with this culture and an ...
Synthetic control chart for monitoring the pprocess mean and variance
(Int Soc Sci Appl Technol, 2006-01-01)
In this article, we consider the synthetic control chart with two-stage sampling (SyTS chart) to control the process mean and variance. During the first stage, one item of the sample is inspected; if its value X, is close ...
Effects of sampling completeness on the structure of plant-pollinator networks
(Wiley, 2012)
Plant-animal interaction networks provide important information on community organization. One of the most critical assumptions of network analysis is that the observed interaction patterns constitute an adequate sample ...
Tamaños de muestra para estimar la estructura de tallas de las capturas de langostino colorado en la zona centro-norte de Chile: una aproximación a través de remuestreoSample sizes for estimating the catch size distribution of squat lobster in north-central Chile: a resampling approach
(Pontificia Universidad Católica de Valparaíso, 2017)
Using image-based size analysis for determining the size distribution and flux of eolian particles sampled in coastal northern Chile (23° S)
(Society for Sedimentary Geology, 2014)
The aim of this study was to determine the size distribution and flux of the mineral fraction collected in marine
sediment traps in Mejillones Bay (23u S) using image-based size analysis. In this bay the material settling ...
Particle size effect on abrasion resistance of mottled cast iron with different retained austenite contents
(ELSEVIER SCIENCE SA, 2009)
Effects of particle abrasive sizes on wear resistance of mottled cast iron with different retained austenite contents were studied. Abrasive wear tests using a pin test on alumina paper were carried out, using abrasive ...
Joint (X)over-bar and R charts with variable sample sizes and sampling intervals
(Amer Soc Quality Control-asqc, 1999-10-01)
Recent studies have shown that the (X) over bar chart with variable sampling intervals (VSI) and/or with variable sample sizes (VSS) detects process shifts faster than the traditional (X) over bar chart. This article extends ...