A highly efficient means of describing curves, surfaces or other configurations in space (or space-time) is to express the position vector as a sum of functions defined over some some interval in a space of one or more "implicit variables". The most familiar forms of these basis functions are the polynomial, trigonometric and superquadric. There seems no reason, however, why we should be limite...

this paper examines the structure and form of the alley spaces in kampala central businessdistrict, with purpose to examine their uses, and the potential for urban renewal. the study employed multiplemethodological approaches and procedures including document review, case study approaches and analysis anddeduction of empirical findings, and explanation building. the study findings reveal that a...

This letter presents a novel and retractable ring-shaped quadrotor called Ring-Rotor that can adjust the vehicle's length width simultaneously. Unlike other morphing quadrotors with high platform complexity poor controllability, uses only one servo motor for but reduces largest dimension of vehicle by approximately 31.4%. It guarantee passibility while flying through small spaces in its compact...

Although it is very hard to quantify the visual impression of an image, we conjecture that the overall visual appearance of an image may be the combined effect of the appearances of image patches of various shapes and sizes. We can imagine that all possible appearances of image patches of all possible shapes and sizes form a conceptual appearance space. Each point in the appearance space theref...

BACKGROUND AND AIMS During their lifetime, tree stems take a series of successive nested shapes. Individual tree growth models traditionally focus on apical growth and architecture. However, cambial growth, which is distributed over a surface layer wrapping the whole organism, equally contributes to plant form and function. This study aims at providing a framework to simulate how organism shape...

The human form has been the dominant subject of painters and sculptors for millennia. It is the shape we are most attuned to, the one most important to recognize and to build our environments around. Modeling this shape and the way it moves has been a grand challenge in computer science. This task is one of the main components of the graphics Turing test: can a machine fool an observer into thi...