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The second Born approximation for electron loss to the continuum
, 1990
"... Abstract. The spectral distribution of projectile electrons which are ejected into the forward direction in fast ionatom collisions is calculated in the secondorder Born theory. A skewness of the forward peak is found which is, however, much weaker than in the case of electron capture to the conti ..."
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to the continuum. The peak asymmetry, the width as well as total cusp cross sections are calculated for He++ He collisions and compared with the available experimental data. 1.
A Useful Approximation for Computing the Continuum Polarization of Be Stars
, 2001
"... This paper describes a practical model for the polarization of Be stars which can be used to estimate roughly the physical parameters for optically thin circumstellar envelopes from broadband UBVRI photopolarimetry data. Analysis of longterm variability in terms of these parameters is a promising a ..."
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This paper describes a practical model for the polarization of Be stars which can be used to estimate roughly the physical parameters for optically thin circumstellar envelopes from broadband UBVRI photopolarimetry data. Analysis of longterm variability in terms of these parameters is a promising approach toward understanding the Be phenomenon. An interesting result from fitting the model to observations of eight Be stars is that all of them may have geometrically thin disks, with opening halfangles on the order of ten degrees or less. This contributes to the growing evidence that most Be disks are geometrically thin. Subject headings: polarization—scattering—techniques:polarimetric—stars: emissionline, Be—stars:winds, outflows—circumstellar matter 1.
A survey of imagebased rendering techniques
 In Videometrics, SPIE
, 1999
"... In this paper, we survey the techniques for imagebased rendering. Unlike traditional 3D computer graphics in which 3D geometry of the scene is known, imagebased rendering techniques render novel views directly from input images. Previous imagebased rendering techniques can be classified into thre ..."
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Cited by 177 (11 self)
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into three categories according to how much geometric information is used: rendering without geometry, rendering with implicit geometry (i.e., correspondence), and rendering with explicit geometry (either with approximate or accurate geometry). We discuss the characteristics of these categories
Matching conditions in atomisticcontinuum modeling of materials, Phys
 Rev. Lett
"... A new class of matching condition between the atomistic and continuum regions is presented for the multiscale modeling of crystals. They ensure the accurate passage of large scale information between the atomistic and continuum regions and at the same time minimize the reflection of phonons at the ..."
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Cited by 26 (6 self)
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few material parameters. But it becomes inaccurate for problems in which the detailed atomistic processes affect the macroscopic behavior of the medium, or when the scale of the medium is small enough that the continuum approximation becomes questionable. Such situations are often found in studies
Γconvergence for beginners
 of Oxford Lecture Series in Mathematics and its Applications
, 2002
"... The object of convergence is the description of the asymptotic behaviour of families of minimum problems, usually depending on some parameters whose nature may be geometric or constitutive, deriving from a discretization argument, an approximation procedure, etc. Since its introduction by De Giorgi ..."
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Cited by 178 (37 self)
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The object of convergence is the description of the asymptotic behaviour of families of minimum problems, usually depending on some parameters whose nature may be geometric or constitutive, deriving from a discretization argument, an approximation procedure, etc. Since its introduction by De
Lattices and their Continuum Limits
 J. Geom. Phys
, 1996
"... We consider finite approximations of a topological space M by noncommutative lattices of points. These lattices are structure spaces of noncommutative C ∗algebras which in turn approximate the algebra C(M) of continuous functions on M. We show how to recover the space M and the algebra C(M) from a ..."
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Cited by 13 (9 self)
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We consider finite approximations of a topological space M by noncommutative lattices of points. These lattices are structure spaces of noncommutative C ∗algebras which in turn approximate the algebra C(M) of continuous functions on M. We show how to recover the space M and the algebra C(M) from a
A Continuum Approach to Dense Wireless Networks with Cooperation
"... Abstract — We consider a multihop wireless network in which a single sourcedestination pair communicates with the help of multiple cooperative relays. The relays deliver the source message by transmitting it in groups at every hop. The group transmissions increase the signaltonoise ratio (SNR) of ..."
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on the idea of continuum approximation, which is valid when the network density is high. Index Terms — Cooperative communications, wireless networks, continuum approximation, performance evaluation, phase transition. I.
unknown title
, 1999
"... A continuum approximation for the excitations of the (1, 1,...,1) interface in the quantum Heisenberg model ..."
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A continuum approximation for the excitations of the (1, 1,...,1) interface in the quantum Heisenberg model
unknown title
, 2004
"... www.elsevier.com/locate/jlumin Transport of optical excitations on dendrimers in the continuum approximation ..."
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www.elsevier.com/locate/jlumin Transport of optical excitations on dendrimers in the continuum approximation
Results 21  30
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