Results 151 to 160 of about 576,868 (362)
The two-jet of the curvature tensor of an Einstein manifold [PDF]
, 2015 Tillmann Jentsch
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Anticlastic Curvature and Material Freedom
physica status solidi (b), EarlyView.Anticlastic curvature occurs in bent bars for positive Poisson's ratio; synclastic curvature occurs for negative Poisson's ratio provided the material is homogeneous and elastic. Some planar negative Poisson's ratio materials exhibit anticlastic saddle curvature rather than convex curvature in bending due to effects of 3D structure.
Roderic Lakes
wiley +1 more source
Scalar and Tensor Parameters for Importing Tensor Index Notation including Einstein Summation Notation [PDF]
, 2017 Satoshi Egi
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Cubic Lattice Rib Shape: Tuning of Poisson's Ratio and Cosserat Characteristic Length
physica status solidi (b), EarlyView.Cubic rib lattices are studied in the context of effects of rib cross‐section shape on Poisson's ratio and on Cosserat characteristic length. It is possible to control Poisson's ratio over a wide range via appropriate rib cross‐section shape. Both Cosserat characteristic lengths can be made much larger than the cell size for torsion dominated rib ...
Roderic S. Lakes
wiley +1 more source
Topological‐defect‐featured order evolution of liquid crystals
Responsive Materials, EarlyView.This review provides a comprehensive introduction to the recent advances in the topological‐defect‐featured order evolution of liquid crystal (LCs), including the stimulus‐driven dynamics of defects in nematic LCs, topological defect morphological transformation during phase transitions, advanced strategies for regulating and applications of ...
Jin‐Bing Wu +4 more
wiley +1 more source
Science Education, EarlyView.ABSTRACT This multiple case study explores the intersections of queerness/transness and science education through a combined framework of queer theory, intersectionality, the construct of figured worlds and science identity. The study uses a life‐history approach to characterize the trajectories of three purposefully selected queer individuals who are ...
Nelly K. M. Marosi +3 more
wiley +1 more source
Construction of an A-manifold on a principal torus bundle
Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2013 We construct a new example of an A-manifold, i.e. a Riemannian manifold with cyclic-parallel Ricci tensor. This condition can be viewed as a generalization of the Einstein condition.
Grzegorz Zborowski
doaj
Epistemological Implications of a System—Theoretical Understanding for Sustainability Models
Systems Research and Behavioral Science, EarlyView.ABSTRACT In the sense of the Sustainable Development Goals (SDGs), global efforts to create a sustainable society will not be sufficiently successful under the current geopolitical and socio‐economic trends. For this reason, recent sustainability research has increasingly focused on systemic coherence, the subject of cognition, and psychological and ...
Stefan Stumm
wiley +1 more source
Conformal Dirichlet-Neumann Maps and Poincaré-Einstein Manifolds
Symmetry, Integrability and Geometry: Methods and Applications, 2007 A conformal description of Poincaré-Einstein manifolds is developed: these structures are seen to be a special case of a natural weakening of the Einstein condition termed an almost Einstein structure.
A. Rod Gover
doaj
On Riemannian warped-twisted product submersions
AIMS MathematicsIn this paper, we introduce the concepts of Riemannian warped-twisted product submersions and examine their fundamental properties, including total geodesicity, total umbilicity and minimality.
Richa Agarwal +4 more
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