Generalization of convex shapes by bees: what are shapes made of?
نویسندگان
چکیده
منابع مشابه
Generalization of convex shapes by bees: what are shapes made of?
For about 70 years, bees were assumed not to possess the capacity to discriminate among convex shapes, such as a disc, a square or a triangle, based on results of early studies conducted by presenting shapes on horizontal planes. Using shapes presented on a vertical plane, we recently demonstrated that bees do discriminate among a variety of convex shapes. Several findings, summarized here, pro...
متن کاملLearning Shapes by Convex Composition
This work mainly focuses on a novel segmentation and partitioning scheme, based on learning the principal elements of the optimal partitioner in the image. The problem of interest is characterizing the objects present in an image as a composition of matching elements from a dictionary of prototype shapes. The composition model allows set union and difference among the selected elements, while r...
متن کاملConvex Shapes and Planar Caps
Any planar shape P can be embedded isometrically as part of a convex surface S ⊂ R such that ∂P supports the positive curvature of S. Of particular interest is the case when P is a filled polynomial Julia set and the curvature is proportional to the measure of maximal entropy. The (flat) surface Q = S \P is the associated cap. In this article, we study the cap construction when the curvature is...
متن کاملConvex Shapes and Harmonic Caps
Any planar shape P ⊂ C can be embedded isometrically as part of the boundary surface S of a convex subset of R such that ∂P supports the positive curvature of S. The complement Q = S \P is the associated cap. We study the cap construction when the curvature is harmonic measure on the boundary of (Ĉ\P,∞). Of particular interest is the case when P is a filled polynomial Julia set and the curvatur...
متن کاملNumerical simulation of Laminar Free Convection Heat Transfer around Isothermal Concave and Convex Body Shapes
In the present research, free convection heat transfer from isothermal concave and convex body shapes is studied numerically. The body shapes investigated here, are bi-sphere, cylinder, prolate and cylinder with hemispherical ends; besides, they have the same height over width (H/D = 2). A Numerical simulation is implemented to obtain heat transfer and fluid flow from all of the geometries in a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2005
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.01790