نتایج جستجو برای: reflection matrix

تعداد نتایج: 423781  

Journal: :Ciencia & saude coletiva 2008
Maria Luisa Sandoval Schmidt

The present article discusses Ethics concept as dwell and way of dwelling, aiming to articulate it with some elements of participative research from an ethnographic matrix. Mainly, it focuses the idea of the ethical subject's autonomy, associating it with self-reflection and alterity in ethnography. Yet, it approaches the participative research in an ethnographic perspective as a praxis that in...

2004
OLIVIER SAURET DENIS FEINBERG THIERRY MARTIN

The detailed operation of an electron spin entangler is studied, using density matrix equations. The device is made of a superconductor, two quantum dots and two normal leads. The treatment takes into account coherent tunneling in a non-perturbative way, and analyzes the various parasitic effects, in addition to the main process (crossed Andreev reflection) : those include singlet pairs passing...

2008
A. Mudrov

We prove that the reflection equation (RE) algebra LR associated with a finite dimensional representation of a quasitriangular Hopf algebra H is twist-equivalent to the corresponding Faddeev-Reshetikhin-Takhtajan (FRT) algebra. We show that LR is a module algebra over the twisted tensor squareH R ⊗H and the double D(H). We define FRTand RE-type algebras and apply them to the problem of equivari...

2004
V. Caudrelier M. Mintchev E. Ragoucy

We establish a family of point–like impurities which preserve the quantum integrability of the non–linear Schrödinger model in 1+1 space–time dimensions. We briefly describe the construction of the exact second quantized solution of this model in terms of an appropriate reflection–transmission algebra. The basic physical properties of the solution, including the space–time symmetry of the bulk ...

2012
CATHERINE WALKER

This paper describes an automated algorithm for generating a group code using any unitary group, initial vector, and generating set that satisfy a necessary condition. Examples with exceptional complex reflection groups, as well as an analysis of the decoding complexity, are also included. Extending these examples, group codes based on wreath products of complex matrix groups are constructed. E...

2007
Mohamad Ivan Fanany Itsuo Kumazawa

This paper addresses the problem of reconstructing nonoverlapping transparent and opaque surfaces from multiple view images. The reconstruction is attained through progressive refinement of an initial 3D shape byminimizing the error between the images of the object and the initial 3D shape. The challenge is to simultaneously reconstruct both the transparent and opaque surfaces given only a limi...

2007
James T. Kirby

The interaction of small amplitude water waves with a patch of bottom ripples is studied using the Boundary Integral Equation Method (BIEM). Normal and oblique wave incidence is examined for reflection coefficients and the laboratory data of Davies and Heathershaw are compared to the numerical results, with the conclusion that the analytical model of Davies and Heathershaw overestimates the ref...

2012
E. Hesse A. Macke S. Havemann

A method to approximate azimuthally resolved light scattering patterns and phase functions due to diffraction and external reflection by strongly absorbing facetted particles is demonstrated for a cube and compared with results from an exact method, T-matrix. A phase function averaged over a range of orientations of a strongly absorbing hexagonal column of aspect ratio unity has been calculated...

2014
Jonathan M. Borwein Matthew K. Tam

The Douglas–Rachford reflection method is a general purpose algorithm useful for solving the feasibility problem of finding a point in the intersection of finitely many sets. In this chapter we demonstrate that applied to a specific problem, the method can benefit from heuristics specific to said problem which exploit its special structure. In particular, we focus on the problem of protein conf...

2009
ANTONIO ARICÒ

The initial-value problem for the focusing nonlinear Schrödinger (NLS) equation is solved numerically by following the various steps of the inverse scattering transform. Starting from the initial value of the solution, a Volterra integral equation is solved followed by three FFT to arrive at the reflection coefficient and initial Marchenko kernel. By convolution these initial data are propagate...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید