نتایج جستجو برای: crystal system

تعداد نتایج: 2373089  

Journal: :CoRR 1998
Eric Goles Ch. Michel Morvan Thi Ha Duong Phan

We study the dynamics of the so-called Game of Cards by using tools developed in the context of discrete dynamical systems. We extend a result of [4] and [10] (the last one in the context of distributed systems) that established a necessary and sufficient condition for the game to converge. We precisely describe the lattice structure of the set of configurations and we state bounds for the conv...

2001
J. A. Clarke D. J. Holder J. K. Jones H. L. Owen M. W. Poole D. J. Scott S. L. Smith J. A. Varley

The Design Phase of DIAMOND, a 3 generation light source facility, is currently in progress. Earlier studies of a similar storage ring had found a basic lattice structure with low emittance, good dynamic stability and the flexibility to operate in different modes. The lattice has been further developed to meet the evolving demands of the project, delivering very high brightness radiation over a...

Journal: :SIAM J. Math. Analysis 2016
Jian-Guo Liu Xiangsheng Xu

Abstract. In this paper we study the existence assertion of the initial boundary value problem for the equation ∂u ∂t = ∆e−∆u. This problem arises in the mathematical description of the evolution of crystal surfaces. Our investigations reveal that the exponent in the equation can have a singular part in the sense of the Lebesgue decomposition theorem, and the exponential nonlinearity somehow “c...

2017
SIVAN TRAJTENBERG-MILLS ADY ARIE

Beamswhich follow curved trajectories are useful in a variety of applications, but up to now have been realized mainly in linear media. We demonstrate theoretically and experimentally the generation of second-harmonic (SH) beams which follow arbitrary convex caustic trajectories. These beams are created in a nonlinear photonic crystal with a second-order susceptibility having a tailored pattern...

2015
Nick Koumakis John F. Brady George Petekidis

Hard sphere colloidal particles are a basic model system for general research into phase behavior, ordering and out-equilibrium glass transitions. Experimentally it has been shown that oscillatory shearing of a monodisperse hard sphere glass, produces two different crystal orientations; a Face Centered Cubic (FCC) crystal with the close packed direction parallel to shear at high strains and an ...

2006
Joseph Young

This paper presents a theoretical optical data pathway model. The goal is to evaluate the physics behind photonic crystal/photon relationships and to develop a theoretical model for photonic crystal implementation into VLSI system design. This paper will begin with the exploration of the fundamentals of wave propagation in photonic crystals, development of an optical transmitting device (laser ...

Journal: :Annals of the New York Academy of Sciences 2002
Onofrio Annunziata John G Albright

Equations are presented that model diffusion of a protein to the surface of a growing crystal in a convection-free environment. The equations apply to crystal growth solutions that contain both a protein and a protein precipitant. The solutions are assumed ternary and the equations include all four diffusion coefficients necessary for the full description of the diffusion process. The four diff...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان 1389

implicit and unobserved errors and vulnerabilities issues usually arise in cryptographic protocols and especially in authentication protocols. this may enable an attacker to make serious damages to the desired system, such as having the access to or changing secret documents, interfering in bank transactions, having access to users’ accounts, or may be having the control all over the syste...

Journal: :Condensed matter 2023

In this paper, within the framework of virtual crystal approximation, mathematical modeling dependence density states polariton excitations in a 1D photonic crystal—a system pores (tunnel-coupled microresonators) containing quantum dots—on concentration structural defects is performed.

2000
A Marigo B Piccoli A Bicchi

In this paper we study control systems whose input sets are quantized. We speciically focus on problems relating to the structure of the reachable set of such systems, which may turn out to be either dense or discrete. We report on some recent results on the reachable set of linear quantized systems, and study in detail a particular but interesting class of nonlinear systems, forming the discre...

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