an analytical model is proposed and an analysis is conducted for solid oxide fuel cells with goals of higher power densities. the analytical model is designed to help optimize the size, spacing, and geome-trical shapes of current collectors. the model fully considers the ohmic, species concentration, and activa-tion polarizations. from the analysis of several cases, it is recommended that 3d pi...

We propose a structural model for decagonal Al-Cu-Co quasicrystals based upon existing experimental diffraction data supplemented by total energy calculations. The model is a decoration of tiles related to the Penrose rhombus tiling. Strong chemical ordering between Cu and Co leads to chains of alternating Cu and Co atoms. These chains project onto tile edges, where they define arrows. At low t...

Computer generated 3D forms using generative procedures have matured in the last decade and now considered as a tangible approach for realizing architectural design ideas. As fascinating as the approach might be, it is still lacking actual application in the early architectural design process. There are many reasons for this, among them: it has many implications over the architectural design pr...

on 3D meshes is closely related to several outcomes in computer graphics: when animating virtual characters the animator must first identify which part of the 3D envelop can be assigned to which corresponding part of the animated skeleton, to obtain a visually coherent animated shape. Every shape has to be segmented to be usable after while. For instance, the CAESAR body database has been built...

In this paper the problem of matching freeform surface features against measured point data is studied. The motivation for this investigation is the recent demand for fast and robust algorithms to detect, to recognize and to automatically parameterize predefined types of shape in existing objects. These algorithms serve for the quick and accurate reuse of existing shapes in new designs of produ...

We describe a system for taking a 2D sketch of a mirror-symmetric 3D shape and lifting the curves to 3D, inferring the symmetry relationship from the original hand-drawn curves. The system takes as input a hand-drawn sketch and generates a set of 3D curves such that their orthogonal projection matches the input sketch. The main contribution is a method which is able to identify the symmetry rel...

Many organisms and objects deform nonrigidly when moving, requiring perceivers to separate shape changes from object motions. Surprisingly, the abilities of observers to correctly infer nonrigid volumetric shapes from motion cues have not been measured, and structure from motion models predominantly use variants of rigidity assumptions. We show that observers are equally sensitive at discrimina...

Generic 3D reconstruction from a single image is a difficult problem. A lot of data loss occurs in the projection. A domain based approach to reconstruction where we solve a smaller set of problems for a particular use case lead to greater returns. The project provides a way to automatically generate full 3-D renditions of actual symmetric images that have some prior information provided in the...

Establishing correspondences between salient points on 3D shapes results in a function mapping similar parts of 3D objects. In this paper, we present a new method for establishing binary correspondences between salient points on 3D shapes. Our algorithm is independent of the shape representation and the object topology. It does not require any prepositioning of the objects. Our method first det...