Comparative analysis of leaf shape development inEschscholzia californicaand other Papaveraceae-Eschscholzioideae
نویسندگان
چکیده
منابع مشابه
A comparative analysis of leaf shape of wheat, barley and maize using an empirical shape model.
BACKGROUND AND AIMS The phenotypes of grasses show differences depending on growth conditions and ontogenetic stage. Understanding these responses and finding suitable mathematical formalizations are an essential part of the development of plant and crop models. Usually, a marked change in architecture between juvenile and adult plants is observed, where dimension and shape of leaves are likely...
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Leaves can be categorized based on various physical attributes but the most popular attribute is shape. For example, we can use „shape‟ as a criterion to differentiate between a mango leaf and a banana leaf. Ideally this criterion can be of immense help to the user of an image database that stores, for instance, the images of different kinds of leaves. The user would often wish to retrieve imag...
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the speech act of disagreement has been one of the speech acts that has received the least attention in the field of pragmatics. this study investigates the ways power relations, social distance, formality of the context, gender, and language proficiency (for efl learners) influence disagreement and politeness strategies. the participants of the study were 200 male and female native persian s...
15 صفحه اولcomparative analysis of the use of hedges & emphatics in english and persian academic research articles of sociology & psychology
چکیده ندارد.
15 صفحه اولLeaf Identification Using Fourier Descriptors and Other Shape Features
Leaf identification is a challenging research. So far, many approaches have been proposed. In this paper, an approach that combines Fourier descriptors with other shape features was investigated to identify 100 hundred kinds of leaves. The result shows that the combination of Fourier descriptors and several other shape features can be used to identify leaves with the accuracy rate of 88%. This ...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 2004
ISSN: 0002-9122
DOI: 10.3732/ajb.91.3.306