INTRODUCTION Pulmonary venous aneurysm (PVA) is a candidate for surgery because of the risk of rupture and continued growth even if the patient does not develop mitral valve disorders. PRESENTATION OF CASE We report the case of PVA that continued to increase in size throughout a 17-year observational period. DISCUSSION AND CONCLUSION The location and form of the aneurysm are important to co...

This paper describes an application of data mining, namely classification, with respect to 3-D surface analysis. More specifically in the context of sheet metal forming, especially Asymmetric Incremental Sheet Forming (AISF). The issue with sheet metal forming processes is that their application results in springback, which means that the resulting shape is not necessarily the desired shape. Er...

We enumerate possible topologies of pseudoknots in single-stranded RNA molecules. We use a steepest-descent approximation in the large N matrix field theory, and a Feynman diagram formalism to describe the resulting pseudoknot structure. An RNA molecule is a heteropolymer strand made up of four types of nucleotides, uracil (U), adenine (A), guanine (G), and cytosine (C). The sequence of these n...

The concept of shape-manifold is applied here to the optimization of a deep drawn blank considering parameterized tool geometries. By adopting this concept, a realistic post-springback shape of the blank closest to a given ideal target shape is obtained. The global approach is fully automated, from the generation of the tool geometries, to the identification of the optimized design parameters. ...

This study was designed to analyze the flow and distribution of polymethylmethacrylate (PMMA) in vertebral body through computer simulation. Cadaveric lumbar vertebrae were scanned through electron beam tomography (EBT). The data was imported into Mimics software to build computational model. Vertebral body center and junction of pedicle and vertebral body were chosen as injection points. Silic...

Let E = F (v) be the ground-state eigenvalue of the Schrödinger Hamiltonian H = −∆ + vf(x), where the potential shape f(x) is symmetric and monotone increasing for x > 0, and the coupling parameter v is positive. If the kinetic potential f̄(s) associated with f(x) is defined by the transformation f̄(s) = F ′(v), s = F (v) − vF ′(v), then f can be reconstructed from F by the sequence f [n+1] = f̄ ◦...