Mathematical model for the description of deformation of a porous metal is constructed on the basis of generalized rheological method. In this method a new rheological element, so-called rigid contact, is used to describe the uniaxial deformation of materials with different resistance to tension and compression. Change in the resistance of a porous metal to external loads, when the collapse of ...

Although large collagen fibers in myocardial infarct scar are highly organized, little is known about mechanisms controlling this organization. The preexisting extracellular matrix may act as a scaffold along which fibroblasts migrate. Conversely, deformation within the ischemic area could guide fibroblasts so new collagen is oriented to counteract the stretch. To investigate these potential me...

J Cardiol Curr Res 2016, 6(6): 00229 measurement of left ventricular ejection fraction (LVEF) using standard two-dimensional (2D) echocardiography [2,3]. However, the LV contractility is a complex mechanism resulting from a three-dimensional structure. Myocardial fibers are orientated in different directions and responsible for three principal types of deformation: longitudinal; radial and circ...

O. Gülseren, T. Yildirim, S. Ciraci, and Ç. Kılıç* NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899 Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104 Department of Physics, Bilkent University, Ankara 06533, Turkey ~Received 18 April 2001; revised manuscript received 11 Decem...

Radial glia play key roles in neuronal migration, axon guidance, and neurogenesis during development of the central nervous system. However, the molecular mechanisms regulating growth and morphology of these extended cells are unknown. We show that ABBA, a novel member of the IRSp53-MIM protein family, is enriched in different types of radial glia. ABBA binds ATP-actin monomers with high affini...

INTRODUCTION AND OBJECTIVES In hypertrophic cardiomyopathy (HCM), it has been suggested that regional fiber disarray produces segments that exhibit no or severely reduced deformation, and that these segments are distributed nonuniformly within the left ventricle (LV). This contrasts with observations in other types of hypertrophy, such as in athlete's heart or hypertensive left ventricular hype...

This paper presents an approach to update the moving ice boundary resulting from aircraft icing simulations using radial basis function mesh deformation techniques. State-of-the-art surface and volume point reduction schemes are used reduce computational cost of deformation. The data which utilised include multi-level greedy selection reduction. reduces number control points increase efficiency...

We introduce and investigate several state-of-the-art shape deformation methods for their use in evolutionary design optimization problems. Starting from classical free-form deformation (FFD) we broaden our investigation to more flexible methods such as direct manipulation FFD and deformations based on radial basis functions. We integrate the different methods into a framework for evolutionary ...