نتایج جستجو برای: geometrical characteristic

تعداد نتایج: 203115  

Journal: :Discrete Event Dynamic Systems 1996
Bart De Schutter Bart De Moor

In this paper we show that finding solutions of a system of multivariate polynomial equalities and inequalities in the max algebra is equivalent to solving an Extended Linear Complementarity Problem. This allows us to find all solutions of such a system of multivariate polynomial equalities and inequalities and provides a geometrical insight in the structure of the solution set. We also demonst...

1999
Sang-Hoon Kim Chul Koo Kim Kyun Nahm

Physical properties of ideal Bose gas with the fractal dimensionality between D = 2 and D = 3 are theoretically investigated. Calculation shows that the characteristic features of the specific heat and the superfluid density of ideal Bose gas in fractal dimensions are strikingly similar to those of superfluid Helium-4 in porous media. This result indicates that the geometrical factor is dominan...

2005
KIM F. WONG

The deuterium nuclear magnetic resonance (2H NMR) spectrum of perdeuterated tetradecanol in a mixture of 1-palmitoyl-2-oleoyl-phosphatidylethanolamine (POPE) and water was used to compare the variation of the acyl chain orientational order parameter, S(n), with carbon position, n, in the liquid crystalline lamellar (La) and hexagonal (HI,) phases. The characteristic independence of S(n) with n ...

2009
Michail Zak

Abstract: Quantum-classical hybrid that preserves the topology of the Schrödinger equation (in the Madelung form), but replaces the quantum potential with other, specially selected, function of probability density is introduced. Non-locality associated with a global geometrical constraint that leads to entanglement effect is demonstrated. Despite such a quantum-like characteristic, the hybrid c...

Journal: :Optics express 2010
Mona Mihailescu

A naturally-inspired phase-only diffractive optical element with a circular symmetry given by a quasi-periodic structure of the phyllotaxis type is presented in this paper. It is generated starting with the characteristic parametric equations which are optimal for the golden angle interval. For some ideal geometrical parameters, the diffracted intensity distribution in near-field has a central ...

2014
Mostafa Khabouze Khalid Hattaf Noura Yousfi

To better understand the dynamics of the hepatitis B virus (HBV) infection, we introduce an improved HBV model with standard incidence function, cytotoxic T lymphocytes (CTL) immune response, and take into account the effect of the export of precursor CTL cells from the thymus and the role of cytolytic and noncytolytic mechanisms. The local stability of the disease-free equilibrium and the chro...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2002
Felipe Barra H George E Hentschel Anders Levermann Itamar Procaccia

We study the geometrical characteristic of quasistatic fractures in brittle media, using iterated conformal maps to determine the evolution of the fracture pattern. This method allows an efficient and accurate solution of the Lamé equations without resorting to lattice models. Typical fracture patterns exhibit increased ramification due to the increase of the stress at the tips. We find the rou...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2005
J M Adams M Warner

We present a fully nonlinear model of the elasticity smectic-A elastomers, and compare our results with a wide range of experimental observations: extreme Poisson ratios, the in-plane modulus, the modulus before and after threshold to layer rotation in response to stretches along the layer normal, the threshold strain, the characteristic, and singular rotation of layers after the threshold. We ...

1999
Stefan Trautwein Matthias Mühlich Dirk Feiden Rudolf Mester

The main goal of this paper is to introduce methods for three-view motion analysis that do not need threefold correspondences in the image planes as the well-known trifocal tensor methods do. With this characteristic, the proposed method is a practically very advantageous approach for (ego-)motion analysis and structure from motion. The proposed method starts with three two-view parameter estim...

Journal: :Physical review letters 2009
A M Mulders S M Lawrence U Staub M Garcia-Fernandez V Scagnoli C Mazzoli E Pomjakushina K Conder Y Wang

Geometrical frustration of the Fe ions in LuFe2O4 leads to intricate charge and magnetic order and a strong magnetoelectric coupling. Using resonant x-ray diffraction at the Fe K edge, the anomalous scattering factors of both Fe sites are deduced from the (h/3 k/3 l/2) reflections. The chemical shift between the two types of Fe ions equals 4.0(1) eV corresponding to full charge separation into ...

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