Results 41 to 50 of about 201,245 (267)
Explicit Continuity Conditions for G1 Connection of S-λ Curves and Surfaces
Mathematics, 2020 The S-λ model is one of the most useful tools for shape designs and geometric representations in computer-aided geometric design (CAGD), which is due to its good geometric properties such as symmetry, shape adjustable property.
Gang Hu +4 more
doaj +1 more source
Integration and Application of UQT-spline Curves and Surfaces [PDF]
Jisuanji gongcheng, 2016 In computer aided geometric design,the representation of closed curves and surfaces usually uses the method of joint,but this method is relatively complex and has lower continuity.In order to better represent the closed curve and surface,the integration ...
LIU Huayong,XIE Xinping,LI Lu,ZHANG Daming
doaj +1 more source
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
Surfaces Modelling Using Isotropic Fractional-Rational Curves
Journal of Applied Mathematics, 2019 The problem of building a smooth surface containing given points or curves is actual due to development of industry and computer technology. Previously used for those purposes, shells of zero Gaussian curvature and minimal surfaces based on isotropic ...
Igor V. Andrianov +3 more
doaj +1 more source
Collectanea Mathematica, 2001 Let F be a smooth surface in a smooth projective threefold T, and let X=2F be the first infinitesimal neighborhood of X in T. A locally Cohen-Macaulay curve C in X gives rise to two effective divisors on F, namely the curve part P of the intersection of C and F, and the curve R residual in C to this intersection. We show that a general deformation of R
S. Nollet +1 more
openaire +5 more sources
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Null Bertrand partner D-curves on spacelike surfaces
Frontiers in PhysicsIn this paper, by using the Darboux frame of null curves, we define null Bertrand partner D-curves and present the relations between curvatures of these curves in Minkowski 3-space E13. In addition, we obtain some special results. Finally, by considering
Tanju Kahraman
doaj +1 more source
Solvability of curves on surfaces
Le Matematiche, 2017 11 ...
Ananyo Dan +2 more
openaire +3 more sources
Haptic Aftereffect of Curved Surfaces [PDF]
Perception, 1996 A haptic aftereffect of curved surfaces is demonstrated. Two spherical surfaces were presented sequentially to human subjects. They rested one hand on the first (conditioning) surface. After a fixed conditioning period they transferred their hand to the second (test) surface and judged whether the test surface was convex or concave. In experiment 1 the
Vogels, I.M.L.C. +2 more
openaire +4 more sources
FEBS Letters, EarlyView.Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley +1 more source