Results 101 to 110 of about 1,083,966 (327)
Curvature and solidification [PDF]
Journal of Computational Physics, 1985 A method is presented for finding the osculating circle, and thus the curvature and the normal, of a curve defined by an array of partial volumes. This method is applied, within the framework of an enthalpy formulation, to the solutions of model equations that describe the motion of a front separating ice and supercooled water.
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Curvature: A Variational Approach [PDF]
Memoirs of the American Mathematical
Society, 2018 120 pages, 12 figures, (v2) minor revision; (v3) new sections on Finsler manifolds, slow growth distributions, Heisenberg group; (v4) major revision, new extended section on 3D contact structures, constant curvature, improved results about existence of ample geodesics on SR structures, 2 new appendices, many minor revisions; (v5) 1 new appendix, minor ...
Luca Rizzi +4 more
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Pharmaceutical Sciences and Research, 2014 Purple sweet potatoes leaves (Ipomoea batatas (L.) Lamk) Antin 3 variety (IBLA) are natural antioxidant sources because of its anthocyanins contents. IBLA was extracted with kinetic maseration method using 70% ethanolic solution.
Damaranie Dipahayu +2 more
doaj +1 more source
Riemannian Submersions Need Not Preserve Positive Ricci Curvature [PDF]
arXiv, 2012 If $\pi :M\rightarrow B$ is a Riemannian Submersion and $M$ has positive sectional curvature, O'Neill's Horizontal Curvature Equation shows that $B$ must also have positive curvature. We show there are Riemannian submersions from compact manifolds with positive Ricci curvature to manifolds that have small neighborhoods of (arbitrarily) negative Ricci ...
arxiv
Membrane curvature induces cardiolipin sorting
Communications Biology, 2019 Cardiolipin is a cone-shaped lipid predominantly localized in curved membrane sites of bacteria and in the mitochondrial cristae. This specific localization has been argued to be geometry-driven, since the CL’s conical shape relaxes curvature frustration.
Elena Beltrán-Heredia +5 more
semanticscholar +1 more source
Molecular Oncology, EarlyView.Adaptive ERK reactivation hinders FLT3 tyrosine kinase inhibitor (TKI) treatment in FLT3/ITD acute myeloid leukemia. Here, we report that FLT3 TKI treatment rapidly induces AXL expression and upregulation that is temporally associated with the adaptive ERK reactivation.
Tessa S. Seale +9 more
wiley +1 more source
Contour detection with bicubic spline surfaces
International Journal of Digital Earth, 2023 Contour detection has a rich history in multiple fields such as geography, engineering, and earth science. The predominant approach is based on piecewise planar tessellation and now being challenged concerning the extraction of contour objects for non ...
Hiroyuki Goto, Taiki Otsuka
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Mean curvature 1 surfaces in hyperbolic 3-space with low total curvature I [PDF]
Hiroshima Math. J. 34 (2004), 21-56, 2000 A complete surface of constant mean curvature 1 (CMC-1) in hyperbolic 3-space with constant curvature -1 has two natural notions of "total curvature"-- one is the total absolute curvature which is the integral over the surface of the absolute value of the Gaussian curvature, and the other is the dual total absolute curvature which is the total absolute
arxiv
Molecular Oncology, EarlyView.The authors applied joint/mixed models that predict mortality of trifluridine/tipiracil‐treated metastatic colorectal cancer patients based on circulating tumor DNA (ctDNA) trajectories. Patients at high risk of death could be spared aggressive therapy with the prospect of a higher quality of life in their remaining lifetime, whereas patients with a ...
Matthias Unseld +7 more
wiley +1 more source
AIMS Materials Science, 2018 Many composite forming processes are based on the consolidation of preimpregnated preforms of different types, e.g., sheets, tapes, .... Composite plies are put in contact using different technologies and consolidation is performed by supplying heat and ...
Clara Argerich +5 more
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