Meander permutations have been investigated in the context of Gauss words, singularity theory, Sturm global attractors, plane Cartesian billiards, and Temperley-Lieb algebras, among others. In this spirit we attempt to investigate the difference of the orderings of homoclinic orbits on the stable and unstable manifolds of a planar saddle. As an example we consider reversible linear Anosov maps ...

This paper has described use of different types of planar electromagnetic sensors to test integrity of currency coins from several different countries. Three types of planar electromagnetic sensors, Mesh, Meander and Interdigital configuration have been used for testing. An effective method to test the integrity of coins using these three types of sensors has been explored. Finite Element model...

T. Kwee, R. Fijnheer, I. Ludwig, H. Quarles van Ufford, C. Uiterwaal, M. Bierings, T. Takahara, and R-J. Nievelstein Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands, Department of Hematology, Meander Medical Center, Amersfoort, Netherlands, Department of Hematology, University Medical Center Utrecht, Utrecht, Netherlands, Julius Center for Health Sciences and Pr...

In this paper, the synthesis of a three-band planar antenna working in the GSM (900 and 1800 MHz) and UMTS frequency bands is presented. As reference geometry, a hybrid prefractal shape has been adopted by integrating a Sierpinski-like and a Meander-like structure. The synthesis of the antenna has been performed by optimizing the descriptive geometrical parameters of the reference shape by mean...

1. Department of Internal Medicine and Infectious Diseases, Utrecht University Medical Centre, the Netherlands. 2. Scientific Institute for Quality of Healthcare, Radboud University Medical Centre, the Netherlands. 3. Department of Pulmonary Diseases, Utrecht University Medical Centre, the Netherlands. 4. Department of Geriatric Diseases, Utrecht University Medical Centre, the Netherlands. 5. D...

[1] Fluvial deposits in a basin north of Holden crater exhibiting a sinuous, anabranching pattern are of deltaic or fan origin. Channel width and meander wavelength indicate persistent flow magnitudes of about 700 m/s. If these flows were produced by quasi-periodic climate episodes involving typical terrestrial-style precipitation, the deposit required thousands to millions of years to accumula...

We calculate the excursion and meander area distributions of the elastic Brownian motion by using the self adjoint extension of the Hamiltonian of the free quantum particle on the half line. We also give some comments on the area of the Brownian motion bridge on the real line with the origin removed. We will stress on the power of self adjoint extension to investigate different possible boundar...

A closed plane meander of order n is a closed self-avoiding loop intersecting an infinite line 2n times. Meanders are considered distinct up to any smooth deformation leaving the line fixed. We have developed an improved algorithm, based on transfer matrix methods, for the enumeration of plane meanders. This allows us to calculate the number of closed meanders up to n = 24. The algorithm is eas...

Fixed area meander line antennas designed on a 5 3 5 rectangular grid were optimized for efficiency and resonant frequency. The Pareto front was developed using ant colony optimization and the numerical electromagnetic code. The lowest frequency antenna fits an area of 0.11k0 3 0.05k0 with an efficiency of 88%. VC 2009 Wiley Periodicals, Inc. Int J RF and Microwave CAE 00: 000–000, 2009.