Certain curvature

In the new era, paper is still the main source of raw materials for daily life and production activities. Therefore, the research team explored recycling paper from bagasse to reduce waste and limit the depletion of available resources. The main material is bagasse with binders of aloe vera, corn starch, and CaCO3 in certain proportions to create paper products.

7p vispyker 14-11-2022 46 3   Download

We show a correspondence between the evolute of a null curve and the involute of a certain spacelike curve in the 4 -dimensional Minkowski space. Also we characterize pseudo-spherical null curves in the ndimensional Minkowski space in terms of the curvature functions.

8p tuongvidanh 06-01-2019 26 1   Download

In membranes of the small prokaryoteAcholeplasma laid-lawii bilayer- and nonbilayer-prone glycolipids are major species, similar to chloroplast membranes. Enzymes of the glucolipid pathway keep certain important packing proper-ties of the bilayerin vivo, visualized especiallyas amonolayer curvature stress (
spontaneous curvature).

11p fptmusic 16-04-2013 21 2   Download

An important problem in conformal geometry is the construction of conformal metrics for which a certain curvature quantity equals a prescribed function, e.g. a constant. In two dimensions, the uniformization theorem assures the existence of a conformal metric with constant Gauss curvature. Moreover, J. Moser [20] proved that for every positive function f on S 2 satisfying f (x) = f (−x) for all x ∈ S 2 there exists a conformal metric on S 2 whose Gauss curvature is equal to f . A natural conformal invariant in dimension four is 1 Q = − (∆R −...

22p tuanloccuoi 04-01-2013 46 6   Download