Stereological analysis of triple line orientations
نویسندگان
چکیده
منابع مشابه
Line Simplification with Restricted Orientations
We study the C-oriented line simplification problem: Given a polygonal chain P represented by an ordered set of vertices PI , ... , pn in the plane, a set of orientations C, and a constant c, we search for a "C-oriented" polygonal chain Q consisting of the minimum number of line segments that has distance at most c to P in the Frechet metric. A polygonal chain is C-oriented if the line segments...
متن کاملA Modular Triple Characterization of Lifting Signatures, Weak Orientations, Orientations, and Ternary Signatures of Matroids
For a matroid M , Dowling and Kelly show how to use a special class of its circuits, which we call balanced circuits, to construct a lift of M. In the case where M comes from a graph, Zaslavsky defines balanced circuits in terms of gains, which are group elements that label the edges of the graph. I will use gains to define the balanced circuits of an arbitrary matroid and show that the lift co...
متن کاملOn Kernel Mengerian Orientations of Line Multigraphs
We present a polyhedral description of kernels in orientations of line multigraphs. Given a digraph D, let FK(D) denote the fractional kernel polytope defined on D, and let σ(D) denote the linear system defining FK(D). A digraph D is called kernel perfect if every induced subdigraph D has a kernel, called kernel ideal if FK(D) is integral for each induced subdigraph D, and called kernel Mengeri...
متن کاملOn kernel-perfect orientations of line graphs
We exploit the technique of Galvin (1995) to prove that an orientation D of a line-graph G (of a multigraph) is kernel-perfect if and only if every oriented odd cycle in D has a chord (or pseudochord) and every clique has a kernel. @ 1998 Elsevier Science B.V. All rights reserved
متن کاملStereological analysis of acute lung injury
Acute lung injury is associated with a variety of histopathological alterations, such as oedema formation, damage to the components of the blood–air barrier and impairment of the surfactant system. Stereological methods are indispensable tools with which to properly quantitate these structural alterations at the light and electron microscopic level. The stereological parameters that are relevan...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IOP Conference Series: Materials Science and Engineering
سال: 2021
ISSN: 1757-8981,1757-899X
DOI: 10.1088/1757-899x/1121/1/012041