Multidimensional transfer functions are an effective description of physical systems with time and space as independent variables. They allow to construct discrete models which are suitable for computer implementation. The derivation of multidimensional transfer functions is straightforward for systems with self-adjoint spatial operators. It is based on the application of suitable functional tr...

In this paper an interactive volume rendering technique is presented which is based on a novel visualization model. We call the basic method “bubble model” since iso-surfaces are rendered as thin semi-transparent membranes similarly to blown soap bubbles. The primary goal is to develop a fast previewing technique for volumetric data which does not require a time-consuming transfer function spec...

Abstract. Classes of irrational function classes, denoted by AS, that lie between the extreme cases of the disk algebra A and the Hardy space H∞(D), are considered. The corona theorem holds for AS, and the following properties are shown: AS is an integral domain, but not a Bézout domain, AS is a Hermite ring with stable rank 1, and the Banach algebra AS has topological stable rank 2. Consequenc...

in this paper, we have considered the problem of rotating, magnetohydrodynamic heat and mass transfer by free convective flow past an exponentially accelerated isothermal vertical plate in the presence of variable mass diffusion. while the temperature of the plate is constant, the concentration at the plate is considered to be a linear function with respect to time t. the plate is assumed to be...

residual is presented by considering the effect of following factors: shape of glottal pulse, phase angles o±formants at the instant of excitation, inaccurate estimation of formants and bandwidths, zeroes in vocal tract system transfer function.

An efficient method for evaluating inner products of repeated integrals and derivatives of a function described by a Laguerre model is presented. An immediate and promising application is model reduction of infinite-dimensional transfer functions. r 2004 Elsevier B.V. All rights reserved.

The scaling of respiratory metabolism with body size in animals is considered by many to be a fundamental law of nature. An apparent corollary of this law is the scaling of physiologic time with body size, implying that physiologic time is separate and distinct from clock time. However, these are only two of the many allometry relations that emerge from empirical studies in the physical, social...