Results 71 to 80 of about 650,097 (307)
Computation and visualization of photonic quasicrystal spectra via Blochs theorem
, 2008 Previous methods for determining photonic quasicrystal (PQC) spectra have relied on the use of large supercells to compute the eigenfrequencies and/or local density of states (LDOS).
Alejandro W. Rodriguez +13 more
core +1 more source
Asymmetries of Cut-and-Project Sets and Related Tilings
Interdisciplinary Information Sciences, 2009 In order to characterize the (a)symmetries of cut-and-project sets, we prove the following: any cut-and-project set with the two projections being injective on the lattice is fixed by an affine transformation if and only if (1) the window restricted on the projection of the lattice is fixed by another affine transformation, and (2) both affine ...
Shinji IIZUKA +2 more
openaire +2 more sources
Combinatorial properties of infinite words associated with cut-and-project sequences [PDF]
Journal de théorie des nombres de Bordeaux, 2003 The aim of this article is to study certain combinatorial properties of infinite binary and ternary words associated to cut-and-project sequences. We consider here the cut-and-project scheme in two dimensions with general orientation of the projecting subspaces. We prove that a cut-and-project sequence arising in such a setting has always either two or
Guimond, Louis-Sébastien +2 more
openaire +2 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background The delipid extracorporeal lipoprotein filter from plasma (DELP) treatment can effectively reduce blood lipid, increase blood flow, and improve neurological deficits in patients with acute ischemic stroke (AIS). However, its effect on vision and retinal microcirculation in stroke patients has never been reported.
Ning Li +9 more
wiley +1 more source
Dense forests and Danzer sets [PDF]
, 2014 A set $Y\subseteq\mathbb{R}^d$ that intersects every convex set of volume $1$ is called a Danzer set. It is not known whether there are Danzer sets in $\mathbb{R}^d$ with growth rate $O(T^d)$.
Solomon, Yaar, Weiss, Barak
core
Self-Matching Properties of Beatty Sequences
Acta Polytechnica, 2007 We study the selfmatching properties of Beatty sequences, in particular of the graph of the function ⌊ jβ ⌋ against j for every quadratic unit βϵ (0,1). We show that translation in the argument by an element Gi of a generalized Fibonacci sequence almost
Z. Masáková, E. Pelantová
doaj
Design and Execution of Turdas Tunnel
Romanian Journal of Transport Infrastructure, 2019 The paper presents aspects of the design and execution of the Turdas tunnel located on the local variant (route), on the Coşlariu - Simeria section, from the rehabilitation project of Brasov – Simeria railway line, component part of Pan European Railway ...
Nică Flaviu Ioan, Iftimie Teodor
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou +10 more
wiley +1 more source
Topological Equivalence between the Fibonacci Quasicrystal and the Harper Model
, 2012 One-dimensional quasiperiodic systems, such as the Harper model and the Fibonacci quasicrystal, have long been the focus of extensive theoretical and experimental research. Recently, the Harper model was found to be topologically nontrivial.
M. Senechal +4 more
core +1 more source
3D UNDERWATER MINE MODELLING IN THE ¡VAMOS! PROJECT [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 The project Viable Alternative Mine Operating System (¡VAMOS!) develops a novel underwater mining technique for extracting inland mineral deposits in flooded open-cut mines. From a floating launch and recovery vessel a remotely-operated underwater mining
M. Bleier +17 more
doaj +1 more source