This paper presents a new approach to computing 1=r singularities on curved panels. By using carefully chosen mapping techniques, a curved panel with curved edges is mapped to a at panel with straight edges. Analytical formulas for at panel integrals are then used to give approximate curved panel integration solution. For those curved panels with reasonably large curvatures and smooth edges, th...

soil slopes are sometimes curved in plan rather than being straight. this curvature,especially when it is convex, decreases the bearing capacity of the slope. finite element methodhas been used here in this research to investigate the reducing effect of curvature on bearingcapacity of a slope. failure of soil has been assumed to be according to mohr-coulomb criteria;but the flow rule of the soi...

in this paper, we give a classification of non simply connected seven dimensional reimannian manifolds of constant positive curvature which admit irreducible cohomogeneity-one actions. we characterize the acting groups and describe the orbits. the first and second homo-topy groups of the orbits have been presented as well.

introduction: the aim of this in vitro study was to evaluate the correlation between accuracy of root zx electronic foramen locator and root canal curvature. methods and materials: one hundred and ten extracted mandibular molars were selected. access cavity was prepared and coronal enlargement of mesiobuccal canal was performed. a #10 flexofile was inserted into the mesiobuccal canal, and a rad...

the aim of this study was to compare the apical seal of curved canals obturated with resilon/epiphany with gutta-percha/ah plus.thirty-four extracted human mandibular molars with 25-40 degree canal curvature of the mesial root were selected for this study. after preparation, the mesiobuccal canals were obturated with gutta-percha and ah- plus sealer (group g) or resilon and epiphany sealer (gro...

Curved A∞-algebras appear in nature as deformations of dg algebras. We develop the basic theory of curved A∞-algebras and, in particular, curved dg algebras. We investigate their link with a suitable class of dg coalgebras via the bar construction and produce Quillen model structures on their module categories. We define the analogue of the relative derived category for a curved dg algebra.

Abstract This paper presents a beam theory for analyzing the static response of slightly curved three-layer beams with interlayer slip. Since are supposed to be immovably supported, membrane stresses develop even at moderately large deflections and becomes geometrically nonlinear. The is based on layerwise application Euler–Bernoulli linear elastic constitutive law interlaminar displacements. I...

This paper deals with representing several of the phenomena that occur when light travels a curved path through inhomogeneous media, such as the well-known mirages. Traditional curved ray tracing presents several problems which have not been efficiently solved yet. We present here our approach based both on curved ray tracing and photon mapping, introducing the concept of curved photon mapping.