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Vertical loads effect on the lateral pile group resistance in sand

Research Abstract
Vertical loads effect on the lateral response of a 3× 5 pile group embedded in sand is studied through a two-dimensional finite element analysis. The soil-pile interaction in three- dimensional type is idealized in the two-dimensional analysis using soil-pile interaction springs with a hysteretic nonlinear load displacement relationship. Vertical loads inducing a vertical pile head displacement of 0.1-pile diameter increase the lateral resistance of the single pile at a 60 mm lateral deflection by 8%. Vertical loads inducing the same vertical .
Research Authors
Mahmoud N Hussien, Tetsuo Tobita, Susumu Iai, Kyle M Rollins
Research Department
Research Journal
Geomechanics and Geoengineering
Research Pages
pp. 263-282
Research Rank
2
Research Vol
Vol. 7 - No. 4
Research Year
2012

Pose Invariant Approach for Face Recognition at Distance

Research Abstract
We propose an automatic pose invariant approach for Face Recognition At a Distance (FRAD). Since face alignment is a crucial step in face recognition systems, we propose a novel facial features extraction model, which guides extended ASM to accurately align the face. Our main concern is to recognize human faces under uncontrolled environment at far distances accurately and fast. To achieve this goal, we perform an offline stage where 3D faces are reconstructed from stereo pair images. These 3D shapes are used to synthesize virtual 2D views in novel poses. To obtain good synthesized images from the 3D shape, we propose an accurate 3D reconstruction framework, which carefully handles illumination variance, occlusion, and the disparity discontinuity. The online phase is fast where a 2D image with unknown pose is matched with the closest virtual images in sampled poses. Experiments show that our approach outperforms the-state-of-the-art approaches.
Research Authors
Eslam Mostafa,
Asem M Ali,
Aly A. Farag
Research Department
Research Journal
Springer Berlin Heidelberg , Lecture Notes in Computer Science: Proceedings of 12th European Conference on Computer Vision, Florence, Italy
Research Member
Research Pages
15-28
Research Rank
3
Research Vol
7574
Research Year
2012
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