Abstract We propose and analyse a numerical integrator that computes low-rank approximation to large time-dependent matrices are either given explicitly via their increments or the unknown solution matrix differential equation. Furthermore, is extended of tensors by Tucker fixed multilinear rank. The proposed different from known projector-splitting for dynamical approximation, but it retains i...

Maybe that's what life is--learning. Nobody teaching-just learning. Nobody tells you how to live. You're just adrift, left t o fend for yourself. Others push you around, but then you either get used to it or you learn to push back. See? That word "learn" comes up. Probably, life is meant to be insecure so that people can learn. Nobody learns anything worthwhile except when he's forced to learn ...

This paper proposes a method for modeling and rendering realistic desert scenes. A desert terrain includes sand dunes and wind ripples. We use two types of scale models to form them. We render the dunes with the wind-ripples by bump-mapping using LODs (Levels of Detail).

for many physical systems like vehicles, acceleration can be easily measured for the respective states. however, the outputs are usually affected by stochastic noise disturbance. the mentioned systems are often sensitive to noise and structural uncertainties. furthermore, it is very difficult to estimate the multiple integrals of the signal, acceleration to velocity and velocity to position. in...

This paper presents an approach to the synthesis of compressed vibration test proŽ les representing much longer time histories obtained in road testing of ground vehicles. Vibration test proŽ les are deŽ ned as those related directly to operational testing on speciŽ c road surfaces and which summarize the input to the vehicle in the given conditions. The method extends the classical Fourier tra...

The absorption of a photon by a photoreceptor triggers a small voltage fluctuation termed the 'bump'. Here, in the housefly, I introduce the bispectrum of photoreceptor noise to characterise the bump under dim light. The bispectrum provides explicit phase information and is not contaminated by Gaussian background noise. Over the photon rates examined (<10(4) s(-1)), I show that bumps are minimu...

Examined the utility of a new parent-report measure designed specifically for pediatric inpatients, the Behavioral Upset in Medical Patients-Revised (BUMP-R). The BUMP-R was administered to 151 mothers of hospitalized children ages 4-12 years the day following the child's hospital admission. The BUMP-R demonstrated good internal consistency and a factor analysis revealed four factors identified...

We consider the following semi-linear elliptic equation with critical exponent: −∆u = K(x)u n+2 n−2 , u > 0 in R, where n ≥ 3, K > 0 is periodic in (x1, ..., xk) with 1 ≤ k < n−2 2 . Under some natural conditions on K near a critical point, we prove the existence of multi-bump solutions where the centers of bumps can be placed in some lattices in R, including infinite lattices. We also show tha...